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* [PATCH v2 00/12] AC97 device/driver model revamp
@ 2017-06-19  7:26 ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:26 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

Hi Lars, Mark, Charles, Lee,

This serie has been stalled for almost one year, as I wasn't feeling that
well lately. I'm quite better now, so let's get back to it.

As it's been so long since the last review, I basically withdrew all my former
objections and took into account all remarks regardless of my own
judgement. This is especially the case with Lars's review on the bus code, where
I tried to address all his comments.

For this next round, let's sum up what happened :
 - I rebased against latest Linus's tree
   => as Lars had made ports to regmap of several impacted wm97xx drivers, all
   the better for me.
   
 - ALSA: ac97: add an ac97 bus
   => this addresses Lars's comments
   => history : https://patchwork.kernel.org/patch/9398229/
   => there is one remark which was left out, the drop of the table
      ac97_controller->codecs. The reason is that there are traversals required
      in the bus scan and controller removal, and the code is way simpler with a
      table, and the data structure very compact.
   
 - Input: wm97xx: split out touchscreen registering
   => Charles's comment taken into account
   => history: http://https://patchwork.kernel.org/patch/9398223/

Have a happy review.

--
Robert

Robert Jarzmik (11):
  ALSA: ac97: add an ac97 bus
  ASoC: add new ac97 bus support
  ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic
  Input: wm97xx: split out touchscreen registering
  mfd: wm97xx-core: core support for wm97xx Codec
  Input: wm97xx: add new AC97 bus support
  ASoC: wm9713: add ac97 new bus support
  ASoC: wm9712: add ac97 new bus support
  ASoC: wm9705: add private structure
  ASoC: wm9705: add ac97 new bus support
  ASoC: pxa: switch to new ac97 bus support

Takashi Iwai (1):
  ASoC: Fix use-after-free at card unregistration

 drivers/input/touchscreen/Kconfig       |   2 +-
 drivers/input/touchscreen/wm97xx-core.c | 252 ++++++++++-----
 drivers/mfd/Kconfig                     |  14 +
 drivers/mfd/Makefile                    |   1 +
 drivers/mfd/wm97xx-core.c               | 282 +++++++++++++++++
 include/linux/mfd/wm97xx.h              |  31 ++
 include/sound/ac97/codec.h              | 118 +++++++
 include/sound/ac97/compat.h             |  21 ++
 include/sound/ac97/controller.h         |  85 ++++++
 include/sound/pxa2xx-lib.h              |  15 +-
 sound/Kconfig                           |   2 +
 sound/Makefile                          |   1 +
 sound/ac97/Kconfig                      |  19 ++
 sound/ac97/Makefile                     |   8 +
 sound/ac97/ac97_core.h                  |  10 +
 sound/ac97/bus.c                        | 526 ++++++++++++++++++++++++++++++++
 sound/ac97/codec.c                      |  15 +
 sound/ac97/snd_ac97_compat.c            | 105 +++++++
 sound/arm/Kconfig                       |   1 -
 sound/arm/pxa2xx-ac97-lib.c             |  37 ++-
 sound/arm/pxa2xx-ac97.c                 |  35 ++-
 sound/soc/Kconfig                       |   4 +
 sound/soc/codecs/Kconfig                |   9 +-
 sound/soc/codecs/wm9705.c               |  59 ++--
 sound/soc/codecs/wm9712.c               |  37 ++-
 sound/soc/codecs/wm9713.c               |  39 ++-
 sound/soc/pxa/Kconfig                   |   5 +-
 sound/soc/pxa/pxa2xx-ac97.c             |  43 ++-
 sound/soc/soc-core.c                    |   5 +-
 29 files changed, 1603 insertions(+), 178 deletions(-)
 create mode 100644 drivers/mfd/wm97xx-core.c
 create mode 100644 include/linux/mfd/wm97xx.h
 create mode 100644 include/sound/ac97/codec.h
 create mode 100644 include/sound/ac97/compat.h
 create mode 100644 include/sound/ac97/controller.h
 create mode 100644 sound/ac97/Kconfig
 create mode 100644 sound/ac97/Makefile
 create mode 100644 sound/ac97/ac97_core.h
 create mode 100644 sound/ac97/bus.c
 create mode 100644 sound/ac97/codec.c
 create mode 100644 sound/ac97/snd_ac97_compat.c

-- 
2.1.4

^ permalink raw reply	[flat|nested] 60+ messages in thread
* [PATCH v2 00/12] AC97 device/driver model revamp
@ 2017-06-19  7:26 ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:26 UTC (permalink / raw)
  To: linux-arm-kernel

Hi Lars, Mark, Charles, Lee,

This serie has been stalled for almost one year, as I wasn't feeling that
well lately. I'm quite better now, so let's get back to it.

As it's been so long since the last review, I basically withdrew all my former
objections and took into account all remarks regardless of my own
judgement. This is especially the case with Lars's review on the bus code, where
I tried to address all his comments.

For this next round, let's sum up what happened :
 - I rebased against latest Linus's tree
   => as Lars had made ports to regmap of several impacted wm97xx drivers, all
   the better for me.
   
 - ALSA: ac97: add an ac97 bus
   => this addresses Lars's comments
   => history : https://patchwork.kernel.org/patch/9398229/
   => there is one remark which was left out, the drop of the table
      ac97_controller->codecs. The reason is that there are traversals required
      in the bus scan and controller removal, and the code is way simpler with a
      table, and the data structure very compact.
   
 - Input: wm97xx: split out touchscreen registering
   => Charles's comment taken into account
   => history: http://https://patchwork.kernel.org/patch/9398223/

Have a happy review.

--
Robert

Robert Jarzmik (11):
  ALSA: ac97: add an ac97 bus
  ASoC: add new ac97 bus support
  ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic
  Input: wm97xx: split out touchscreen registering
  mfd: wm97xx-core: core support for wm97xx Codec
  Input: wm97xx: add new AC97 bus support
  ASoC: wm9713: add ac97 new bus support
  ASoC: wm9712: add ac97 new bus support
  ASoC: wm9705: add private structure
  ASoC: wm9705: add ac97 new bus support
  ASoC: pxa: switch to new ac97 bus support

Takashi Iwai (1):
  ASoC: Fix use-after-free at card unregistration

 drivers/input/touchscreen/Kconfig       |   2 +-
 drivers/input/touchscreen/wm97xx-core.c | 252 ++++++++++-----
 drivers/mfd/Kconfig                     |  14 +
 drivers/mfd/Makefile                    |   1 +
 drivers/mfd/wm97xx-core.c               | 282 +++++++++++++++++
 include/linux/mfd/wm97xx.h              |  31 ++
 include/sound/ac97/codec.h              | 118 +++++++
 include/sound/ac97/compat.h             |  21 ++
 include/sound/ac97/controller.h         |  85 ++++++
 include/sound/pxa2xx-lib.h              |  15 +-
 sound/Kconfig                           |   2 +
 sound/Makefile                          |   1 +
 sound/ac97/Kconfig                      |  19 ++
 sound/ac97/Makefile                     |   8 +
 sound/ac97/ac97_core.h                  |  10 +
 sound/ac97/bus.c                        | 526 ++++++++++++++++++++++++++++++++
 sound/ac97/codec.c                      |  15 +
 sound/ac97/snd_ac97_compat.c            | 105 +++++++
 sound/arm/Kconfig                       |   1 -
 sound/arm/pxa2xx-ac97-lib.c             |  37 ++-
 sound/arm/pxa2xx-ac97.c                 |  35 ++-
 sound/soc/Kconfig                       |   4 +
 sound/soc/codecs/Kconfig                |   9 +-
 sound/soc/codecs/wm9705.c               |  59 ++--
 sound/soc/codecs/wm9712.c               |  37 ++-
 sound/soc/codecs/wm9713.c               |  39 ++-
 sound/soc/pxa/Kconfig                   |   5 +-
 sound/soc/pxa/pxa2xx-ac97.c             |  43 ++-
 sound/soc/soc-core.c                    |   5 +-
 29 files changed, 1603 insertions(+), 178 deletions(-)
 create mode 100644 drivers/mfd/wm97xx-core.c
 create mode 100644 include/linux/mfd/wm97xx.h
 create mode 100644 include/sound/ac97/codec.h
 create mode 100644 include/sound/ac97/compat.h
 create mode 100644 include/sound/ac97/controller.h
 create mode 100644 sound/ac97/Kconfig
 create mode 100644 sound/ac97/Makefile
 create mode 100644 sound/ac97/ac97_core.h
 create mode 100644 sound/ac97/bus.c
 create mode 100644 sound/ac97/codec.c
 create mode 100644 sound/ac97/snd_ac97_compat.c

-- 
2.1.4

^ permalink raw reply	[flat|nested] 60+ messages in thread
* [PATCH v2 01/12] ALSA: ac97: add an ac97 bus
  2017-06-19  7:26 ` Robert Jarzmik
@ 2017-06-19  7:26   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:26 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

AC97 is a bus for sound usage. It enables for a AC97 AC-Link to link one
controller to 0 to 4 AC97 codecs.

The goal of this new implementation is to implement a device/driver
model for AC97, with an automatic scan of the bus and automatic
discovery of AC97 codec devices.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
Since RFCv1:
 - Takashi's review
   - changed the codec.h guard ... a better name could be found ...
   - added the AC97_* macros missing parenthesis
   - constantified the id_table in the codec driver structure
   - changed the 4 codecs linked list into an array
   - enabled the ac97 bus to be a module
   - added a slots_available to snd_ac97_controller_register() to have a
     way to prevent scanning and probing of unconnected codecs
   - removed useless ac97 bus index
   - all exported functions begin with snd_ac97_*()
   - change bus operations to controller+slot parameters instead of
     codec device

 - Mark's review
   - changed ac97_digital_controller into ac97_controller
   - rename ac97_digital_controller_*() into ac97_controller_*()
   - add the ac97 ac-link clock to the codec device (ie. the AC'97
     BIT_CLK)

Since RFCv2:
 - more snd_ac97 namespace review
 - change the compat allocation prototype to force the user to provide
   and ac97_codec_device structure pointer

Since v1:
 - took into account all Lars comments
---
 include/sound/ac97/codec.h      | 118 +++++++++
 include/sound/ac97/compat.h     |  21 ++
 include/sound/ac97/controller.h |  85 +++++++
 sound/ac97/Kconfig              |  19 ++
 sound/ac97/Makefile             |   8 +
 sound/ac97/ac97_core.h          |  10 +
 sound/ac97/bus.c                | 526 ++++++++++++++++++++++++++++++++++++++++
 sound/ac97/codec.c              |  15 ++
 sound/ac97/snd_ac97_compat.c    | 105 ++++++++
 9 files changed, 907 insertions(+)
 create mode 100644 include/sound/ac97/codec.h
 create mode 100644 include/sound/ac97/compat.h
 create mode 100644 include/sound/ac97/controller.h
 create mode 100644 sound/ac97/Kconfig
 create mode 100644 sound/ac97/Makefile
 create mode 100644 sound/ac97/ac97_core.h
 create mode 100644 sound/ac97/bus.c
 create mode 100644 sound/ac97/codec.c
 create mode 100644 sound/ac97/snd_ac97_compat.c

diff --git a/include/sound/ac97/codec.h b/include/sound/ac97/codec.h
new file mode 100644
index 000000000000..ec04be9ab119
--- /dev/null
+++ b/include/sound/ac97/codec.h
@@ -0,0 +1,118 @@
+/*
+ *  Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __SOUND_AC97_CODEC2_H
+#define __SOUND_AC97_CODEC2_H
+
+#include <linux/device.h>
+
+#define AC97_ID(vendor_id1, vendor_id2) \
+	((((vendor_id1) & 0xffff) << 16) | ((vendor_id2) & 0xffff))
+#define AC97_DRIVER_ID(vendor_id1, vendor_id2, mask_id1, mask_id2, _data) \
+	{ .id = (((vendor_id1) & 0xffff) << 16) | ((vendor_id2) & 0xffff), \
+	  .mask = (((mask_id1) & 0xffff) << 16) | ((mask_id2) & 0xffff), \
+	  .data = (_data) }
+
+struct ac97_controller;
+struct clk;
+
+/**
+ * struct ac97_id - matches a codec device and driver on an ac97 bus
+ * @id: The significant bits if the codec vendor ID1 and ID2
+ * @mask: Bitmask specifying which bits of the id field are significant when
+ *	  matching. A driver binds to a device when :
+ *        ((vendorID1 << 8 | vendorID2) & (mask_id1 << 8 | mask_id2)) == id.
+ * @data: Private data used by the driver.
+ */
+struct ac97_id {
+	unsigned int		id;
+	unsigned int		mask;
+	void			*data;
+};
+
+/**
+ * ac97_codec_device - a ac97 codec
+ * @dev: the core device
+ * @vendor_id: the vendor_id of the codec, as sensed on the AC-link
+ * @num: the codec number, 0 is primary, 1 is first slave, etc ...
+ * @clk: the clock BIT_CLK provided by the codec
+ * @ac97_ctrl: ac97 digital controller on the same AC-link
+ *
+ * This is the device instantiated for each codec living on a AC-link. There are
+ * normally 0 to 4 codec devices per AC-link, and all of them are controlled by
+ * an AC97 digital controller.
+ */
+struct ac97_codec_device {
+	struct device		dev;
+	unsigned int		vendor_id;
+	unsigned int		num;
+	struct clk		*clk;
+	struct ac97_controller	*ac97_ctrl;
+};
+
+/**
+ * ac97_codec_driver - a ac97 codec driver
+ * @driver: the device driver structure
+ * @probe: the function called when a ac97_codec_device is matched
+ * @remove: the function called when the device is unbound/removed
+ * @shutdown: shutdown function (might be NULL)
+ * @id_table: ac97 vendor_id match table, { } member terminated
+ */
+struct ac97_codec_driver {
+	struct device_driver	driver;
+	int			(*probe)(struct ac97_codec_device *);
+	int			(*remove)(struct ac97_codec_device *);
+	void			(*shutdown)(struct ac97_codec_device *);
+	const struct ac97_id	*id_table;
+};
+
+static inline struct ac97_codec_device *to_ac97_device(struct device *d)
+{
+	return container_of(d, struct ac97_codec_device, dev);
+}
+
+static inline struct ac97_codec_driver *to_ac97_driver(struct device_driver *d)
+{
+	return container_of(d, struct ac97_codec_driver, driver);
+}
+
+#if IS_ENABLED(CONFIG_AC97_BUS_NEW)
+int snd_ac97_codec_driver_register(struct ac97_codec_driver *drv);
+void snd_ac97_codec_driver_unregister(struct ac97_codec_driver *drv);
+#else
+static inline int
+snd_ac97_codec_driver_register(struct ac97_codec_driver *drv)
+{
+	return 0;
+}
+static inline void
+snd_ac97_codec_driver_unregister(struct ac97_codec_driver *drv)
+{
+}
+#endif
+
+
+static inline struct device *
+ac97_codec_dev2dev(struct ac97_codec_device *adev)
+{
+	return &adev->dev;
+}
+
+static inline void *ac97_get_drvdata(struct ac97_codec_device *adev)
+{
+	return dev_get_drvdata(ac97_codec_dev2dev(adev));
+}
+
+static inline void ac97_set_drvdata(struct ac97_codec_device *adev,
+				    void *data)
+{
+	dev_set_drvdata(ac97_codec_dev2dev(adev), data);
+}
+
+void *snd_ac97_codec_get_platdata(const struct ac97_codec_device *adev);
+
+#endif
diff --git a/include/sound/ac97/compat.h b/include/sound/ac97/compat.h
new file mode 100644
index 000000000000..d876464bf7e4
--- /dev/null
+++ b/include/sound/ac97/compat.h
@@ -0,0 +1,21 @@
+/*
+ *  Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This file is for backward compatibility with snd_ac97 structure and its
+ * multiple usages, such as the snd_ac97_bus and snd_ac97_build_ops.
+ *
+ */
+#ifndef AC97_COMPAT_H
+#define AC97_COMPAT_H
+
+#include <sound/ac97_codec.h>
+#include <sound/soc.h>
+
+struct snd_ac97 *snd_ac97_compat_alloc(struct ac97_codec_device *adev);
+void snd_ac97_compat_release(struct snd_ac97 *ac97);
+
+#endif
diff --git a/include/sound/ac97/controller.h b/include/sound/ac97/controller.h
new file mode 100644
index 000000000000..a7e369875f98
--- /dev/null
+++ b/include/sound/ac97/controller.h
@@ -0,0 +1,85 @@
+/*
+ *  Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef AC97_CONTROLLER_H
+#define AC97_CONTROLLER_H
+
+#include <linux/list.h>
+
+#define AC97_BUS_MAX_CODECS 4
+#define AC97_SLOTS_AVAILABLE_ALL 0xf
+
+struct device;
+
+/**
+ * struct ac97_controller - The AC97 controller of the AC-Link
+ * @ops:		the AC97 operations.
+ * @controllers:	linked list of all existing controllers.
+ * @adap:		the shell device ac97-%d, ie. ac97 adapter
+ * @nr:			the number of the shell device
+ * @parent:		the device providing the AC97 controller.
+ * @slots_available:	the mask of accessible/scanable codecs.
+ * @codecs:		the 4 possible AC97 codecs (NULL if none found).
+ * @codecs_pdata:	platform_data for each codec (NULL if no pdata).
+ *
+ * This structure is internal to AC97 bus, and should not be used by the
+ * controllers themselves, excepting for using @dev.
+ */
+struct ac97_controller {
+	const struct ac97_controller_ops *ops;
+	struct list_head controllers;
+	struct device adap;
+	int nr;
+	struct device *parent;
+	unsigned short slots_available;
+	struct ac97_codec_device *codecs[AC97_BUS_MAX_CODECS];
+	void *codecs_pdata[AC97_BUS_MAX_CODECS];
+};
+
+/**
+ * struct ac97_controller_ops - The AC97 operations
+ * @reset:	Cold reset of the AC97 AC-Link.
+ * @warm_reset:	Warm reset of the AC97 AC-Link.
+ * @read:	Read of a single AC97 register.
+ *		Returns the register value or a negative error code.
+ * @write:	Write of a single AC97 register.
+ *
+ * These are the basic operation an AC97 controller must provide for an AC97
+ * access functions. Amongst these, all but the last 2 are mandatory.
+ * The slot number is also known as the AC97 codec number, between 0 and 3.
+ */
+struct ac97_controller_ops {
+	void (*reset)(struct ac97_controller *adrv);
+	void (*warm_reset)(struct ac97_controller *adrv);
+	int (*write)(struct ac97_controller *adrv, int slot,
+		     unsigned short reg, unsigned short val);
+	int (*read)(struct ac97_controller *adrv, int slot, unsigned short reg);
+};
+
+#if IS_ENABLED(CONFIG_AC97_BUS_NEW)
+struct ac97_controller *snd_ac97_controller_register(
+	const struct ac97_controller_ops *ops, struct device *dev,
+	unsigned short slots_available, void **codecs_pdata);
+void snd_ac97_controller_unregister(struct ac97_controller *ac97_ctrl);
+#else
+static inline int
+snd_ac97_controller_register(const struct ac97_controller_ops *ops,
+			     struct device *dev,
+			     unsigned short slots_available,
+			     void **codecs_pdata)
+{
+	return 0;
+}
+
+static inline void
+snd_ac97_controller_unregister(struct ac97_controller *ac97_ctrl)
+{
+	return 0;
+}
+#endif
+
+#endif
diff --git a/sound/ac97/Kconfig b/sound/ac97/Kconfig
new file mode 100644
index 000000000000..f8a64e15e5bf
--- /dev/null
+++ b/sound/ac97/Kconfig
@@ -0,0 +1,19 @@
+#
+# AC97 configuration
+#
+
+
+config AC97_BUS_NEW
+	tristate
+	select AC97
+	help
+	  This is the new AC97 bus type, successor of AC97_BUS. The ported
+	  drivers which benefit from the AC97 automatic probing should "select"
+	  this instead of the AC97_BUS.
+	  Say Y here if you want to have AC97 devices, which are sound oriented
+	  devices around an AC-Link.
+
+config AC97_BUS_COMPAT
+	bool
+	depends on AC97_BUS_NEW
+	depends on !AC97_BUS
diff --git a/sound/ac97/Makefile b/sound/ac97/Makefile
new file mode 100644
index 000000000000..f9c2640bfb59
--- /dev/null
+++ b/sound/ac97/Makefile
@@ -0,0 +1,8 @@
+#
+# make for AC97 bus drivers
+#
+
+obj-$(CONFIG_AC97_BUS_NEW)	+= ac97.o
+
+ac97-y				+= bus.o codec.o
+ac97-$(CONFIG_AC97_BUS_COMPAT)	+= snd_ac97_compat.o
diff --git a/sound/ac97/ac97_core.h b/sound/ac97/ac97_core.h
new file mode 100644
index 000000000000..219fec0d52e0
--- /dev/null
+++ b/sound/ac97/ac97_core.h
@@ -0,0 +1,10 @@
+/*
+ * Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+unsigned int snd_ac97_bus_scan_one(struct ac97_controller *ac97,
+				   unsigned int codec_num);
diff --git a/sound/ac97/bus.c b/sound/ac97/bus.c
new file mode 100644
index 000000000000..7cda8175341e
--- /dev/null
+++ b/sound/ac97/bus.c
@@ -0,0 +1,526 @@
+/*
+ * Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/idr.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/controller.h>
+#include <sound/ac97/regs.h>
+
+#include "ac97_core.h"
+
+/*
+ * Protects ac97_controllers and each ac97_controller structure.
+ */
+static DEFINE_MUTEX(ac97_controllers_mutex);
+static DEFINE_IDR(ac97_adapter_idr);
+static LIST_HEAD(ac97_controllers);
+
+static struct bus_type ac97_bus_type;
+
+static inline struct ac97_controller*
+to_ac97_controller(struct device *ac97_adapter)
+{
+	return container_of(ac97_adapter, struct ac97_controller, adap);
+}
+
+static int ac97_unbound_ctrl_write(struct ac97_controller *adrv, int slot,
+		     unsigned short reg, unsigned short val)
+{
+	return -ENODEV;
+}
+
+static int ac97_unbound_ctrl_read(struct ac97_controller *adrv, int slot,
+				  unsigned short reg)
+{
+	return -ENODEV;
+}
+
+static const struct ac97_controller_ops ac97_unbound_ctrl_ops = {
+	.write = ac97_unbound_ctrl_write,
+	.read = ac97_unbound_ctrl_read,
+};
+
+static struct ac97_controller ac97_unbound_ctrl = {
+	.ops = &ac97_unbound_ctrl_ops,
+};
+
+static struct ac97_codec_device *
+ac97_codec_find(struct ac97_controller *ac97_ctrl, unsigned int codec_num)
+{
+	if (codec_num >= AC97_BUS_MAX_CODECS)
+		return ERR_PTR(-EINVAL);
+
+	return ac97_ctrl->codecs[codec_num];
+}
+
+static void ac97_codec_release(struct device *dev)
+{
+	struct ac97_codec_device *adev;
+	struct ac97_controller *ac97_ctrl;
+
+	adev = to_ac97_device(dev);
+	ac97_ctrl = adev->ac97_ctrl;
+	ac97_ctrl->codecs[adev->num] = NULL;
+	sysfs_remove_link(&dev->kobj, "ac97_controller");
+	kfree(adev);
+}
+
+static int ac97_codec_add(struct ac97_controller *ac97_ctrl, int idx,
+		   unsigned int vendor_id)
+{
+	struct ac97_codec_device *codec;
+	int ret;
+
+	codec = kzalloc(sizeof(*codec), GFP_KERNEL);
+	if (!codec)
+		return -ENOMEM;
+	ac97_ctrl->codecs[idx] = codec;
+	codec->vendor_id = vendor_id;
+	codec->dev.release = ac97_codec_release;
+	codec->dev.bus = &ac97_bus_type;
+	codec->dev.parent = &ac97_ctrl->adap;
+	codec->num = idx;
+	codec->ac97_ctrl = ac97_ctrl;
+
+	device_initialize(&codec->dev);
+	dev_set_name(&codec->dev, "%s:%u", dev_name(ac97_ctrl->parent), idx);
+
+	ret = device_add(&codec->dev);
+	if (ret)
+		goto err_free_codec;
+
+	return 0;
+err_free_codec:
+	kfree(codec);
+	ac97_ctrl->codecs[idx] = NULL;
+
+	return ret;
+}
+
+unsigned int snd_ac97_bus_scan_one(struct ac97_controller *adrv,
+				   unsigned int codec_num)
+{
+	unsigned short vid1, vid2;
+	int ret;
+
+	ret = adrv->ops->read(adrv, codec_num, AC97_VENDOR_ID1);
+	vid1 = (ret & 0xffff);
+	if (ret < 0)
+		return 0;
+
+	ret = adrv->ops->read(adrv, codec_num, AC97_VENDOR_ID2);
+	vid2 = (ret & 0xffff);
+	if (ret < 0)
+		return 0;
+
+	dev_dbg(&adrv->adap, "%s(codec_num=%u): vendor_id=0x%08x\n",
+		__func__, codec_num, AC97_ID(vid1, vid2));
+	return AC97_ID(vid1, vid2);
+}
+
+static int ac97_bus_scan(struct ac97_controller *ac97_ctrl)
+{
+	int ret, i;
+	unsigned int vendor_id;
+
+	for (i = 0; i < AC97_BUS_MAX_CODECS; i++) {
+		if (ac97_codec_find(ac97_ctrl, i))
+			continue;
+		if (!(ac97_ctrl->slots_available & BIT(i)))
+			continue;
+		vendor_id = snd_ac97_bus_scan_one(ac97_ctrl, i);
+		if (!vendor_id)
+			continue;
+
+		ret = ac97_codec_add(ac97_ctrl, i, vendor_id);
+		if (ret < 0)
+			return ret;
+	}
+	return 0;
+}
+
+static int ac97_bus_reset(struct ac97_controller *ac97_ctrl)
+{
+	ac97_ctrl->ops->reset(ac97_ctrl);
+
+	return 0;
+}
+
+/**
+ * snd_ac97_codec_driver_register - register an AC97 codec driver
+ * @dev: AC97 driver codec to register
+ *
+ * Register an AC97 codec driver to the ac97 bus driver, aka. the AC97 digital
+ * controller.
+ *
+ * Returns 0 on success or error code
+ */
+int snd_ac97_codec_driver_register(struct ac97_codec_driver *drv)
+{
+	int ret;
+
+	drv->driver.bus = &ac97_bus_type;
+	ret = driver_register(&drv->driver);
+
+	return ret;
+}
+EXPORT_SYMBOL(snd_ac97_codec_driver_register);
+
+/**
+ * snd_ac97_codec_driver_unregister - unregister an AC97 codec driver
+ * @dev: AC97 codec driver to unregister
+ *
+ * Unregister a previously registered ac97 codec driver.
+ */
+void snd_ac97_codec_driver_unregister(struct ac97_codec_driver *drv)
+{
+	driver_unregister(&drv->driver);
+}
+EXPORT_SYMBOL(snd_ac97_codec_driver_unregister);
+
+/**
+ * snd_ac97_codec_get_platdata - get platform_data
+ * @adev: the ac97 codec device
+ *
+ * For legacy platforms, in order to have platform_data in codec drivers
+ * available, while ac97 device are auto-created upon probe, this retrieves the
+ * platdata which was setup on ac97 controller registration.
+ *
+ * Returns the platform data pointer
+ */
+void *snd_ac97_codec_get_platdata(const struct ac97_codec_device *adev)
+{
+	struct ac97_controller *ac97_ctrl = adev->ac97_ctrl;
+
+	return ac97_ctrl->codecs_pdata[adev->num];
+}
+EXPORT_SYMBOL(snd_ac97_codec_get_platdata);
+
+static void ac97_ctrl_codecs_unregister(struct ac97_controller *ac97_ctrl)
+{
+	int i;
+
+	for (i = 0; i < AC97_BUS_MAX_CODECS; i++)
+		if (ac97_ctrl->codecs[i]) {
+			ac97_ctrl->codecs[i]->ac97_ctrl = &ac97_unbound_ctrl;
+			device_unregister(&ac97_ctrl->codecs[i]->dev);
+		}
+}
+
+static ssize_t cold_reset_store(struct device *dev,
+				struct device_attribute *attr, const char *buf,
+				size_t len)
+{
+	struct ac97_controller *ac97_ctrl;
+
+	mutex_lock(&ac97_controllers_mutex);
+	ac97_ctrl = to_ac97_controller(dev);
+	ac97_ctrl->ops->reset(ac97_ctrl);
+	mutex_unlock(&ac97_controllers_mutex);
+	return len;
+}
+static DEVICE_ATTR_WO(cold_reset);
+
+static ssize_t warm_reset_store(struct device *dev,
+				struct device_attribute *attr, const char *buf,
+				size_t len)
+{
+	struct ac97_controller *ac97_ctrl;
+
+	if (!dev)
+		return -ENODEV;
+
+	mutex_lock(&ac97_controllers_mutex);
+	ac97_ctrl = to_ac97_controller(dev);
+	ac97_ctrl->ops->warm_reset(ac97_ctrl);
+	mutex_unlock(&ac97_controllers_mutex);
+	return len;
+}
+static DEVICE_ATTR_WO(warm_reset);
+
+static struct attribute *ac97_controller_device_attrs[] = {
+	&dev_attr_cold_reset.attr,
+	&dev_attr_warm_reset.attr,
+	NULL
+};
+
+static struct attribute_group ac97_adapter_attr_group = {
+	.name	= "ac97_operations",
+	.attrs	= ac97_controller_device_attrs,
+};
+
+static const struct attribute_group *ac97_adapter_groups[] = {
+	&ac97_adapter_attr_group,
+	NULL,
+};
+
+static const struct device_type ac97_adapter_type = {
+	.groups		= ac97_adapter_groups,
+};
+
+static int ac97_add_adapter(struct ac97_controller *ac97_ctrl)
+{
+	int ret;
+
+	mutex_lock(&ac97_controllers_mutex);
+	ret = idr_alloc(&ac97_adapter_idr, ac97_ctrl, 0, 0, GFP_KERNEL);
+	ac97_ctrl->nr = ret;
+	if (ret >= 0) {
+		dev_set_name(&ac97_ctrl->adap, "ac97-%d", ret);
+		ac97_ctrl->adap.type = &ac97_adapter_type;
+		ac97_ctrl->adap.parent = ac97_ctrl->parent;
+		ret = device_register(&ac97_ctrl->adap);
+		if (ret)
+			put_device(&ac97_ctrl->adap);
+	}
+	if (!ret)
+		list_add(&ac97_ctrl->controllers, &ac97_controllers);
+	mutex_unlock(&ac97_controllers_mutex);
+
+	if (!ret)
+		dev_dbg(&ac97_ctrl->adap, "adapter registered by %s\n",
+			dev_name(ac97_ctrl->parent));
+	return ret;
+}
+
+static void ac97_del_adapter(struct ac97_controller *ac97_ctrl)
+{
+	mutex_lock(&ac97_controllers_mutex);
+	ac97_ctrl_codecs_unregister(ac97_ctrl);
+	list_del(&ac97_ctrl->controllers);
+	idr_remove(&ac97_adapter_idr, ac97_ctrl->nr);
+	mutex_unlock(&ac97_controllers_mutex);
+	put_device(&ac97_ctrl->adap);
+}
+
+/**
+ * snd_ac97_controller_register - register an ac97 controller
+ * @ops: the ac97 bus operations
+ * @dev: the device providing the ac97 DC function
+ * @slots_available: mask of the ac97 codecs that can be scanned and probed
+ *                   bit0 => codec 0, bit1 => codec 1 ... bit 3 => codec 3
+ *
+ * Register a digital controller which can control up to 4 ac97 codecs. This is
+ * the controller side of the AC97 AC-link, while the slave side are the codecs.
+ *
+ * Returns a valid controller upon success, negative pointer value upon error
+ */
+struct ac97_controller *snd_ac97_controller_register(
+	const struct ac97_controller_ops *ops, struct device *dev,
+	unsigned short slots_available, void **codecs_pdata)
+{
+	struct ac97_controller *ac97_ctrl;
+	int ret, i;
+
+	ac97_ctrl = kzalloc(sizeof(*ac97_ctrl), GFP_KERNEL);
+	if (!ac97_ctrl)
+		return ERR_PTR(-ENOMEM);
+
+	for (i = 0; i < AC97_BUS_MAX_CODECS && codecs_pdata; i++)
+		ac97_ctrl->codecs_pdata[i] = codecs_pdata[i];
+
+	ac97_ctrl->ops = ops;
+	ac97_ctrl->slots_available = slots_available;
+	ac97_ctrl->parent = dev;
+	ret = ac97_add_adapter(ac97_ctrl);
+
+	if (ret)
+		goto err;
+	ac97_bus_reset(ac97_ctrl);
+	ac97_bus_scan(ac97_ctrl);
+
+	return ac97_ctrl;
+err:
+	kfree(ac97_ctrl);
+	return ERR_PTR(ret);
+}
+EXPORT_SYMBOL(snd_ac97_controller_register);
+
+/**
+ * snd_ac97_controller_unregister - unregister an ac97 controller
+ * @ac97_ctrl: the device previously provided to ac97_controller_register()
+ *
+ */
+void snd_ac97_controller_unregister(struct ac97_controller *ac97_ctrl)
+{
+	ac97_del_adapter(ac97_ctrl);
+}
+EXPORT_SYMBOL(snd_ac97_controller_unregister);
+
+#ifdef CONFIG_PM
+static int ac97_pm_runtime_suspend(struct device *dev)
+{
+	struct ac97_codec_device *codec = to_ac97_device(dev);
+	int ret = pm_generic_runtime_suspend(dev);
+
+	if (ret == 0 && dev->driver) {
+		if (pm_runtime_is_irq_safe(dev))
+			clk_disable(codec->clk);
+		else
+			clk_disable_unprepare(codec->clk);
+	}
+
+	return ret;
+}
+
+static int ac97_pm_runtime_resume(struct device *dev)
+{
+	struct ac97_codec_device *codec = to_ac97_device(dev);
+	int ret;
+
+	if (dev->driver) {
+		if (pm_runtime_is_irq_safe(dev))
+			ret = clk_enable(codec->clk);
+		else
+			ret = clk_prepare_enable(codec->clk);
+		if (ret)
+			return ret;
+	}
+
+	return pm_generic_runtime_resume(dev);
+}
+#endif /* CONFIG_PM */
+
+static const struct dev_pm_ops ac97_pm = {
+	.suspend	= pm_generic_suspend,
+	.resume		= pm_generic_resume,
+	.freeze		= pm_generic_freeze,
+	.thaw		= pm_generic_thaw,
+	.poweroff	= pm_generic_poweroff,
+	.restore	= pm_generic_restore,
+	SET_RUNTIME_PM_OPS(
+		ac97_pm_runtime_suspend,
+		ac97_pm_runtime_resume,
+		NULL)
+};
+
+static int ac97_get_enable_clk(struct ac97_codec_device *adev)
+{
+	int ret;
+
+	adev->clk = clk_get(&adev->dev, "ac97_clk");
+	if (IS_ERR(adev->clk))
+		return PTR_ERR(adev->clk);
+
+	ret = clk_prepare_enable(adev->clk);
+	if (ret)
+		clk_put(adev->clk);
+
+	return ret;
+}
+
+static void ac97_put_disable_clk(struct ac97_codec_device *adev)
+{
+	clk_disable_unprepare(adev->clk);
+	clk_put(adev->clk);
+}
+
+static ssize_t vendor_id_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	struct ac97_codec_device *codec = to_ac97_device(dev);
+
+	return sprintf(buf, "%08x", codec->vendor_id);
+}
+DEVICE_ATTR_RO(vendor_id);
+
+static struct attribute *ac97_dev_attrs[] = {
+	&dev_attr_vendor_id.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(ac97_dev);
+
+static int ac97_bus_match(struct device *dev, struct device_driver *drv)
+{
+	struct ac97_codec_device *adev = to_ac97_device(dev);
+	struct ac97_codec_driver *adrv = to_ac97_driver(drv);
+	const struct ac97_id *id = adrv->id_table;
+	int i = 0;
+
+	if (adev->vendor_id == 0x0 || adev->vendor_id == 0xffffffff)
+		return false;
+
+	do {
+		if ((id[i].id & id->mask) == (adev->vendor_id & id[i].mask))
+			return true;
+	} while (id[i++].id);
+
+	return false;
+}
+
+static int ac97_bus_probe(struct device *dev)
+{
+	struct ac97_codec_device *adev = to_ac97_device(dev);
+	struct ac97_codec_driver *adrv = to_ac97_driver(dev->driver);
+	int ret;
+
+	ret = ac97_get_enable_clk(adev);
+	if (ret)
+		return ret;
+
+	pm_runtime_get_noresume(dev);
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+
+	ret = adrv->probe(adev);
+	if (ret == 0)
+		return 0;
+
+	pm_runtime_disable(dev);
+	pm_runtime_set_suspended(dev);
+	pm_runtime_put_noidle(dev);
+	ac97_put_disable_clk(adev);
+
+	return ret;
+}
+
+static int ac97_bus_remove(struct device *dev)
+{
+	struct ac97_codec_device *adev = to_ac97_device(dev);
+	struct ac97_codec_driver *adrv = to_ac97_driver(dev->driver);
+	int ret;
+
+	ret = pm_runtime_get_sync(dev);
+	if (ret)
+		return ret;
+
+	ret = adrv->remove(adev);
+	pm_runtime_put_noidle(dev);
+	if (ret == 0)
+		ac97_put_disable_clk(adev);
+
+	return ret;
+}
+
+static struct bus_type ac97_bus_type = {
+	.name		= "ac97",
+	.dev_groups	= ac97_dev_groups,
+	.match		= ac97_bus_match,
+	.pm		= &ac97_pm,
+	.probe		= ac97_bus_probe,
+	.remove		= ac97_bus_remove,
+};
+
+static int __init ac97_bus_init(void)
+{
+	return bus_register(&ac97_bus_type);
+}
+subsys_initcall(ac97_bus_init);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Robert Jarzmik <robert.jarzmik@free.fr>");
diff --git a/sound/ac97/codec.c b/sound/ac97/codec.c
new file mode 100644
index 000000000000..a835f03744bf
--- /dev/null
+++ b/sound/ac97/codec.c
@@ -0,0 +1,15 @@
+/*
+ *  Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <sound/ac97_codec.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/controller.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <sound/soc.h>	/* For compat_ac97_* */
+
diff --git a/sound/ac97/snd_ac97_compat.c b/sound/ac97/snd_ac97_compat.c
new file mode 100644
index 000000000000..ac8d835c1513
--- /dev/null
+++ b/sound/ac97/snd_ac97_compat.c
@@ -0,0 +1,105 @@
+/*
+ *  Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/compat.h>
+#include <sound/ac97/controller.h>
+#include <sound/soc.h>
+
+#include "ac97_core.h"
+
+static void compat_ac97_reset(struct snd_ac97 *ac97)
+{
+	struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
+	struct ac97_controller *actrl = adev->ac97_ctrl;
+
+	if (actrl->ops->reset)
+		actrl->ops->reset(actrl);
+}
+
+static void compat_ac97_warm_reset(struct snd_ac97 *ac97)
+{
+	struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
+	struct ac97_controller *actrl = adev->ac97_ctrl;
+
+	if (actrl->ops->warm_reset)
+		actrl->ops->warm_reset(actrl);
+}
+
+static void compat_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
+			      unsigned short val)
+{
+	struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
+	struct ac97_controller *actrl = adev->ac97_ctrl;
+
+	actrl->ops->write(actrl, ac97->num, reg, val);
+}
+
+static unsigned short compat_ac97_read(struct snd_ac97 *ac97,
+				       unsigned short reg)
+{
+	struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
+	struct ac97_controller *actrl = adev->ac97_ctrl;
+
+	return actrl->ops->read(actrl, ac97->num, reg);
+}
+
+static struct snd_ac97_bus_ops compat_snd_ac97_bus_ops = {
+	.reset = compat_ac97_reset,
+	.warm_reset = compat_ac97_warm_reset,
+	.write = compat_ac97_write,
+	.read = compat_ac97_read,
+};
+
+static struct snd_ac97_bus compat_soc_ac97_bus = {
+	.ops = &compat_snd_ac97_bus_ops,
+};
+
+struct snd_ac97 *snd_ac97_compat_alloc(struct ac97_codec_device *adev)
+{
+	struct snd_ac97 *ac97;
+
+	ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
+	if (ac97 == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	ac97->dev = adev->dev;
+	ac97->private_data = adev;
+	ac97->bus = &compat_soc_ac97_bus;
+	return ac97;
+}
+EXPORT_SYMBOL_GPL(snd_ac97_compat_alloc);
+
+void snd_ac97_compat_release(struct snd_ac97 *ac97)
+{
+	kfree(ac97);
+}
+EXPORT_SYMBOL_GPL(snd_ac97_compat_release);
+
+int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id,
+	unsigned int id_mask)
+{
+	struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
+	struct ac97_controller *actrl = adev->ac97_ctrl;
+
+	if (try_warm) {
+		compat_ac97_warm_reset(ac97);
+		if (snd_ac97_bus_scan_one(actrl, adev->num) == adev->vendor_id)
+			return 1;
+	}
+
+	compat_ac97_reset(ac97);
+	compat_ac97_warm_reset(ac97);
+	if (snd_ac97_bus_scan_one(actrl, adev->num) == adev->vendor_id)
+		return 0;
+
+	return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(snd_ac97_reset);
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 01/12] ALSA: ac97: add an ac97 bus
@ 2017-06-19  7:26   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:26 UTC (permalink / raw)
  To: linux-arm-kernel

AC97 is a bus for sound usage. It enables for a AC97 AC-Link to link one
controller to 0 to 4 AC97 codecs.

The goal of this new implementation is to implement a device/driver
model for AC97, with an automatic scan of the bus and automatic
discovery of AC97 codec devices.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
Since RFCv1:
 - Takashi's review
   - changed the codec.h guard ... a better name could be found ...
   - added the AC97_* macros missing parenthesis
   - constantified the id_table in the codec driver structure
   - changed the 4 codecs linked list into an array
   - enabled the ac97 bus to be a module
   - added a slots_available to snd_ac97_controller_register() to have a
     way to prevent scanning and probing of unconnected codecs
   - removed useless ac97 bus index
   - all exported functions begin with snd_ac97_*()
   - change bus operations to controller+slot parameters instead of
     codec device

 - Mark's review
   - changed ac97_digital_controller into ac97_controller
   - rename ac97_digital_controller_*() into ac97_controller_*()
   - add the ac97 ac-link clock to the codec device (ie. the AC'97
     BIT_CLK)

Since RFCv2:
 - more snd_ac97 namespace review
 - change the compat allocation prototype to force the user to provide
   and ac97_codec_device structure pointer

Since v1:
 - took into account all Lars comments
---
 include/sound/ac97/codec.h      | 118 +++++++++
 include/sound/ac97/compat.h     |  21 ++
 include/sound/ac97/controller.h |  85 +++++++
 sound/ac97/Kconfig              |  19 ++
 sound/ac97/Makefile             |   8 +
 sound/ac97/ac97_core.h          |  10 +
 sound/ac97/bus.c                | 526 ++++++++++++++++++++++++++++++++++++++++
 sound/ac97/codec.c              |  15 ++
 sound/ac97/snd_ac97_compat.c    | 105 ++++++++
 9 files changed, 907 insertions(+)
 create mode 100644 include/sound/ac97/codec.h
 create mode 100644 include/sound/ac97/compat.h
 create mode 100644 include/sound/ac97/controller.h
 create mode 100644 sound/ac97/Kconfig
 create mode 100644 sound/ac97/Makefile
 create mode 100644 sound/ac97/ac97_core.h
 create mode 100644 sound/ac97/bus.c
 create mode 100644 sound/ac97/codec.c
 create mode 100644 sound/ac97/snd_ac97_compat.c

diff --git a/include/sound/ac97/codec.h b/include/sound/ac97/codec.h
new file mode 100644
index 000000000000..ec04be9ab119
--- /dev/null
+++ b/include/sound/ac97/codec.h
@@ -0,0 +1,118 @@
+/*
+ *  Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __SOUND_AC97_CODEC2_H
+#define __SOUND_AC97_CODEC2_H
+
+#include <linux/device.h>
+
+#define AC97_ID(vendor_id1, vendor_id2) \
+	((((vendor_id1) & 0xffff) << 16) | ((vendor_id2) & 0xffff))
+#define AC97_DRIVER_ID(vendor_id1, vendor_id2, mask_id1, mask_id2, _data) \
+	{ .id = (((vendor_id1) & 0xffff) << 16) | ((vendor_id2) & 0xffff), \
+	  .mask = (((mask_id1) & 0xffff) << 16) | ((mask_id2) & 0xffff), \
+	  .data = (_data) }
+
+struct ac97_controller;
+struct clk;
+
+/**
+ * struct ac97_id - matches a codec device and driver on an ac97 bus
+ * @id: The significant bits if the codec vendor ID1 and ID2
+ * @mask: Bitmask specifying which bits of the id field are significant when
+ *	  matching. A driver binds to a device when :
+ *        ((vendorID1 << 8 | vendorID2) & (mask_id1 << 8 | mask_id2)) == id.
+ * @data: Private data used by the driver.
+ */
+struct ac97_id {
+	unsigned int		id;
+	unsigned int		mask;
+	void			*data;
+};
+
+/**
+ * ac97_codec_device - a ac97 codec
+ * @dev: the core device
+ * @vendor_id: the vendor_id of the codec, as sensed on the AC-link
+ * @num: the codec number, 0 is primary, 1 is first slave, etc ...
+ * @clk: the clock BIT_CLK provided by the codec
+ * @ac97_ctrl: ac97 digital controller on the same AC-link
+ *
+ * This is the device instantiated for each codec living on a AC-link. There are
+ * normally 0 to 4 codec devices per AC-link, and all of them are controlled by
+ * an AC97 digital controller.
+ */
+struct ac97_codec_device {
+	struct device		dev;
+	unsigned int		vendor_id;
+	unsigned int		num;
+	struct clk		*clk;
+	struct ac97_controller	*ac97_ctrl;
+};
+
+/**
+ * ac97_codec_driver - a ac97 codec driver
+ * @driver: the device driver structure
+ * @probe: the function called when a ac97_codec_device is matched
+ * @remove: the function called when the device is unbound/removed
+ * @shutdown: shutdown function (might be NULL)
+ * @id_table: ac97 vendor_id match table, { } member terminated
+ */
+struct ac97_codec_driver {
+	struct device_driver	driver;
+	int			(*probe)(struct ac97_codec_device *);
+	int			(*remove)(struct ac97_codec_device *);
+	void			(*shutdown)(struct ac97_codec_device *);
+	const struct ac97_id	*id_table;
+};
+
+static inline struct ac97_codec_device *to_ac97_device(struct device *d)
+{
+	return container_of(d, struct ac97_codec_device, dev);
+}
+
+static inline struct ac97_codec_driver *to_ac97_driver(struct device_driver *d)
+{
+	return container_of(d, struct ac97_codec_driver, driver);
+}
+
+#if IS_ENABLED(CONFIG_AC97_BUS_NEW)
+int snd_ac97_codec_driver_register(struct ac97_codec_driver *drv);
+void snd_ac97_codec_driver_unregister(struct ac97_codec_driver *drv);
+#else
+static inline int
+snd_ac97_codec_driver_register(struct ac97_codec_driver *drv)
+{
+	return 0;
+}
+static inline void
+snd_ac97_codec_driver_unregister(struct ac97_codec_driver *drv)
+{
+}
+#endif
+
+
+static inline struct device *
+ac97_codec_dev2dev(struct ac97_codec_device *adev)
+{
+	return &adev->dev;
+}
+
+static inline void *ac97_get_drvdata(struct ac97_codec_device *adev)
+{
+	return dev_get_drvdata(ac97_codec_dev2dev(adev));
+}
+
+static inline void ac97_set_drvdata(struct ac97_codec_device *adev,
+				    void *data)
+{
+	dev_set_drvdata(ac97_codec_dev2dev(adev), data);
+}
+
+void *snd_ac97_codec_get_platdata(const struct ac97_codec_device *adev);
+
+#endif
diff --git a/include/sound/ac97/compat.h b/include/sound/ac97/compat.h
new file mode 100644
index 000000000000..d876464bf7e4
--- /dev/null
+++ b/include/sound/ac97/compat.h
@@ -0,0 +1,21 @@
+/*
+ *  Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This file is for backward compatibility with snd_ac97 structure and its
+ * multiple usages, such as the snd_ac97_bus and snd_ac97_build_ops.
+ *
+ */
+#ifndef AC97_COMPAT_H
+#define AC97_COMPAT_H
+
+#include <sound/ac97_codec.h>
+#include <sound/soc.h>
+
+struct snd_ac97 *snd_ac97_compat_alloc(struct ac97_codec_device *adev);
+void snd_ac97_compat_release(struct snd_ac97 *ac97);
+
+#endif
diff --git a/include/sound/ac97/controller.h b/include/sound/ac97/controller.h
new file mode 100644
index 000000000000..a7e369875f98
--- /dev/null
+++ b/include/sound/ac97/controller.h
@@ -0,0 +1,85 @@
+/*
+ *  Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef AC97_CONTROLLER_H
+#define AC97_CONTROLLER_H
+
+#include <linux/list.h>
+
+#define AC97_BUS_MAX_CODECS 4
+#define AC97_SLOTS_AVAILABLE_ALL 0xf
+
+struct device;
+
+/**
+ * struct ac97_controller - The AC97 controller of the AC-Link
+ * @ops:		the AC97 operations.
+ * @controllers:	linked list of all existing controllers.
+ * @adap:		the shell device ac97-%d, ie. ac97 adapter
+ * @nr:			the number of the shell device
+ * @parent:		the device providing the AC97 controller.
+ * @slots_available:	the mask of accessible/scanable codecs.
+ * @codecs:		the 4 possible AC97 codecs (NULL if none found).
+ * @codecs_pdata:	platform_data for each codec (NULL if no pdata).
+ *
+ * This structure is internal to AC97 bus, and should not be used by the
+ * controllers themselves, excepting for using @dev.
+ */
+struct ac97_controller {
+	const struct ac97_controller_ops *ops;
+	struct list_head controllers;
+	struct device adap;
+	int nr;
+	struct device *parent;
+	unsigned short slots_available;
+	struct ac97_codec_device *codecs[AC97_BUS_MAX_CODECS];
+	void *codecs_pdata[AC97_BUS_MAX_CODECS];
+};
+
+/**
+ * struct ac97_controller_ops - The AC97 operations
+ * @reset:	Cold reset of the AC97 AC-Link.
+ * @warm_reset:	Warm reset of the AC97 AC-Link.
+ * @read:	Read of a single AC97 register.
+ *		Returns the register value or a negative error code.
+ * @write:	Write of a single AC97 register.
+ *
+ * These are the basic operation an AC97 controller must provide for an AC97
+ * access functions. Amongst these, all but the last 2 are mandatory.
+ * The slot number is also known as the AC97 codec number, between 0 and 3.
+ */
+struct ac97_controller_ops {
+	void (*reset)(struct ac97_controller *adrv);
+	void (*warm_reset)(struct ac97_controller *adrv);
+	int (*write)(struct ac97_controller *adrv, int slot,
+		     unsigned short reg, unsigned short val);
+	int (*read)(struct ac97_controller *adrv, int slot, unsigned short reg);
+};
+
+#if IS_ENABLED(CONFIG_AC97_BUS_NEW)
+struct ac97_controller *snd_ac97_controller_register(
+	const struct ac97_controller_ops *ops, struct device *dev,
+	unsigned short slots_available, void **codecs_pdata);
+void snd_ac97_controller_unregister(struct ac97_controller *ac97_ctrl);
+#else
+static inline int
+snd_ac97_controller_register(const struct ac97_controller_ops *ops,
+			     struct device *dev,
+			     unsigned short slots_available,
+			     void **codecs_pdata)
+{
+	return 0;
+}
+
+static inline void
+snd_ac97_controller_unregister(struct ac97_controller *ac97_ctrl)
+{
+	return 0;
+}
+#endif
+
+#endif
diff --git a/sound/ac97/Kconfig b/sound/ac97/Kconfig
new file mode 100644
index 000000000000..f8a64e15e5bf
--- /dev/null
+++ b/sound/ac97/Kconfig
@@ -0,0 +1,19 @@
+#
+# AC97 configuration
+#
+
+
+config AC97_BUS_NEW
+	tristate
+	select AC97
+	help
+	  This is the new AC97 bus type, successor of AC97_BUS. The ported
+	  drivers which benefit from the AC97 automatic probing should "select"
+	  this instead of the AC97_BUS.
+	  Say Y here if you want to have AC97 devices, which are sound oriented
+	  devices around an AC-Link.
+
+config AC97_BUS_COMPAT
+	bool
+	depends on AC97_BUS_NEW
+	depends on !AC97_BUS
diff --git a/sound/ac97/Makefile b/sound/ac97/Makefile
new file mode 100644
index 000000000000..f9c2640bfb59
--- /dev/null
+++ b/sound/ac97/Makefile
@@ -0,0 +1,8 @@
+#
+# make for AC97 bus drivers
+#
+
+obj-$(CONFIG_AC97_BUS_NEW)	+= ac97.o
+
+ac97-y				+= bus.o codec.o
+ac97-$(CONFIG_AC97_BUS_COMPAT)	+= snd_ac97_compat.o
diff --git a/sound/ac97/ac97_core.h b/sound/ac97/ac97_core.h
new file mode 100644
index 000000000000..219fec0d52e0
--- /dev/null
+++ b/sound/ac97/ac97_core.h
@@ -0,0 +1,10 @@
+/*
+ * Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+unsigned int snd_ac97_bus_scan_one(struct ac97_controller *ac97,
+				   unsigned int codec_num);
diff --git a/sound/ac97/bus.c b/sound/ac97/bus.c
new file mode 100644
index 000000000000..7cda8175341e
--- /dev/null
+++ b/sound/ac97/bus.c
@@ -0,0 +1,526 @@
+/*
+ * Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/idr.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/controller.h>
+#include <sound/ac97/regs.h>
+
+#include "ac97_core.h"
+
+/*
+ * Protects ac97_controllers and each ac97_controller structure.
+ */
+static DEFINE_MUTEX(ac97_controllers_mutex);
+static DEFINE_IDR(ac97_adapter_idr);
+static LIST_HEAD(ac97_controllers);
+
+static struct bus_type ac97_bus_type;
+
+static inline struct ac97_controller*
+to_ac97_controller(struct device *ac97_adapter)
+{
+	return container_of(ac97_adapter, struct ac97_controller, adap);
+}
+
+static int ac97_unbound_ctrl_write(struct ac97_controller *adrv, int slot,
+		     unsigned short reg, unsigned short val)
+{
+	return -ENODEV;
+}
+
+static int ac97_unbound_ctrl_read(struct ac97_controller *adrv, int slot,
+				  unsigned short reg)
+{
+	return -ENODEV;
+}
+
+static const struct ac97_controller_ops ac97_unbound_ctrl_ops = {
+	.write = ac97_unbound_ctrl_write,
+	.read = ac97_unbound_ctrl_read,
+};
+
+static struct ac97_controller ac97_unbound_ctrl = {
+	.ops = &ac97_unbound_ctrl_ops,
+};
+
+static struct ac97_codec_device *
+ac97_codec_find(struct ac97_controller *ac97_ctrl, unsigned int codec_num)
+{
+	if (codec_num >= AC97_BUS_MAX_CODECS)
+		return ERR_PTR(-EINVAL);
+
+	return ac97_ctrl->codecs[codec_num];
+}
+
+static void ac97_codec_release(struct device *dev)
+{
+	struct ac97_codec_device *adev;
+	struct ac97_controller *ac97_ctrl;
+
+	adev = to_ac97_device(dev);
+	ac97_ctrl = adev->ac97_ctrl;
+	ac97_ctrl->codecs[adev->num] = NULL;
+	sysfs_remove_link(&dev->kobj, "ac97_controller");
+	kfree(adev);
+}
+
+static int ac97_codec_add(struct ac97_controller *ac97_ctrl, int idx,
+		   unsigned int vendor_id)
+{
+	struct ac97_codec_device *codec;
+	int ret;
+
+	codec = kzalloc(sizeof(*codec), GFP_KERNEL);
+	if (!codec)
+		return -ENOMEM;
+	ac97_ctrl->codecs[idx] = codec;
+	codec->vendor_id = vendor_id;
+	codec->dev.release = ac97_codec_release;
+	codec->dev.bus = &ac97_bus_type;
+	codec->dev.parent = &ac97_ctrl->adap;
+	codec->num = idx;
+	codec->ac97_ctrl = ac97_ctrl;
+
+	device_initialize(&codec->dev);
+	dev_set_name(&codec->dev, "%s:%u", dev_name(ac97_ctrl->parent), idx);
+
+	ret = device_add(&codec->dev);
+	if (ret)
+		goto err_free_codec;
+
+	return 0;
+err_free_codec:
+	kfree(codec);
+	ac97_ctrl->codecs[idx] = NULL;
+
+	return ret;
+}
+
+unsigned int snd_ac97_bus_scan_one(struct ac97_controller *adrv,
+				   unsigned int codec_num)
+{
+	unsigned short vid1, vid2;
+	int ret;
+
+	ret = adrv->ops->read(adrv, codec_num, AC97_VENDOR_ID1);
+	vid1 = (ret & 0xffff);
+	if (ret < 0)
+		return 0;
+
+	ret = adrv->ops->read(adrv, codec_num, AC97_VENDOR_ID2);
+	vid2 = (ret & 0xffff);
+	if (ret < 0)
+		return 0;
+
+	dev_dbg(&adrv->adap, "%s(codec_num=%u): vendor_id=0x%08x\n",
+		__func__, codec_num, AC97_ID(vid1, vid2));
+	return AC97_ID(vid1, vid2);
+}
+
+static int ac97_bus_scan(struct ac97_controller *ac97_ctrl)
+{
+	int ret, i;
+	unsigned int vendor_id;
+
+	for (i = 0; i < AC97_BUS_MAX_CODECS; i++) {
+		if (ac97_codec_find(ac97_ctrl, i))
+			continue;
+		if (!(ac97_ctrl->slots_available & BIT(i)))
+			continue;
+		vendor_id = snd_ac97_bus_scan_one(ac97_ctrl, i);
+		if (!vendor_id)
+			continue;
+
+		ret = ac97_codec_add(ac97_ctrl, i, vendor_id);
+		if (ret < 0)
+			return ret;
+	}
+	return 0;
+}
+
+static int ac97_bus_reset(struct ac97_controller *ac97_ctrl)
+{
+	ac97_ctrl->ops->reset(ac97_ctrl);
+
+	return 0;
+}
+
+/**
+ * snd_ac97_codec_driver_register - register an AC97 codec driver
+ * @dev: AC97 driver codec to register
+ *
+ * Register an AC97 codec driver to the ac97 bus driver, aka. the AC97 digital
+ * controller.
+ *
+ * Returns 0 on success or error code
+ */
+int snd_ac97_codec_driver_register(struct ac97_codec_driver *drv)
+{
+	int ret;
+
+	drv->driver.bus = &ac97_bus_type;
+	ret = driver_register(&drv->driver);
+
+	return ret;
+}
+EXPORT_SYMBOL(snd_ac97_codec_driver_register);
+
+/**
+ * snd_ac97_codec_driver_unregister - unregister an AC97 codec driver
+ * @dev: AC97 codec driver to unregister
+ *
+ * Unregister a previously registered ac97 codec driver.
+ */
+void snd_ac97_codec_driver_unregister(struct ac97_codec_driver *drv)
+{
+	driver_unregister(&drv->driver);
+}
+EXPORT_SYMBOL(snd_ac97_codec_driver_unregister);
+
+/**
+ * snd_ac97_codec_get_platdata - get platform_data
+ * @adev: the ac97 codec device
+ *
+ * For legacy platforms, in order to have platform_data in codec drivers
+ * available, while ac97 device are auto-created upon probe, this retrieves the
+ * platdata which was setup on ac97 controller registration.
+ *
+ * Returns the platform data pointer
+ */
+void *snd_ac97_codec_get_platdata(const struct ac97_codec_device *adev)
+{
+	struct ac97_controller *ac97_ctrl = adev->ac97_ctrl;
+
+	return ac97_ctrl->codecs_pdata[adev->num];
+}
+EXPORT_SYMBOL(snd_ac97_codec_get_platdata);
+
+static void ac97_ctrl_codecs_unregister(struct ac97_controller *ac97_ctrl)
+{
+	int i;
+
+	for (i = 0; i < AC97_BUS_MAX_CODECS; i++)
+		if (ac97_ctrl->codecs[i]) {
+			ac97_ctrl->codecs[i]->ac97_ctrl = &ac97_unbound_ctrl;
+			device_unregister(&ac97_ctrl->codecs[i]->dev);
+		}
+}
+
+static ssize_t cold_reset_store(struct device *dev,
+				struct device_attribute *attr, const char *buf,
+				size_t len)
+{
+	struct ac97_controller *ac97_ctrl;
+
+	mutex_lock(&ac97_controllers_mutex);
+	ac97_ctrl = to_ac97_controller(dev);
+	ac97_ctrl->ops->reset(ac97_ctrl);
+	mutex_unlock(&ac97_controllers_mutex);
+	return len;
+}
+static DEVICE_ATTR_WO(cold_reset);
+
+static ssize_t warm_reset_store(struct device *dev,
+				struct device_attribute *attr, const char *buf,
+				size_t len)
+{
+	struct ac97_controller *ac97_ctrl;
+
+	if (!dev)
+		return -ENODEV;
+
+	mutex_lock(&ac97_controllers_mutex);
+	ac97_ctrl = to_ac97_controller(dev);
+	ac97_ctrl->ops->warm_reset(ac97_ctrl);
+	mutex_unlock(&ac97_controllers_mutex);
+	return len;
+}
+static DEVICE_ATTR_WO(warm_reset);
+
+static struct attribute *ac97_controller_device_attrs[] = {
+	&dev_attr_cold_reset.attr,
+	&dev_attr_warm_reset.attr,
+	NULL
+};
+
+static struct attribute_group ac97_adapter_attr_group = {
+	.name	= "ac97_operations",
+	.attrs	= ac97_controller_device_attrs,
+};
+
+static const struct attribute_group *ac97_adapter_groups[] = {
+	&ac97_adapter_attr_group,
+	NULL,
+};
+
+static const struct device_type ac97_adapter_type = {
+	.groups		= ac97_adapter_groups,
+};
+
+static int ac97_add_adapter(struct ac97_controller *ac97_ctrl)
+{
+	int ret;
+
+	mutex_lock(&ac97_controllers_mutex);
+	ret = idr_alloc(&ac97_adapter_idr, ac97_ctrl, 0, 0, GFP_KERNEL);
+	ac97_ctrl->nr = ret;
+	if (ret >= 0) {
+		dev_set_name(&ac97_ctrl->adap, "ac97-%d", ret);
+		ac97_ctrl->adap.type = &ac97_adapter_type;
+		ac97_ctrl->adap.parent = ac97_ctrl->parent;
+		ret = device_register(&ac97_ctrl->adap);
+		if (ret)
+			put_device(&ac97_ctrl->adap);
+	}
+	if (!ret)
+		list_add(&ac97_ctrl->controllers, &ac97_controllers);
+	mutex_unlock(&ac97_controllers_mutex);
+
+	if (!ret)
+		dev_dbg(&ac97_ctrl->adap, "adapter registered by %s\n",
+			dev_name(ac97_ctrl->parent));
+	return ret;
+}
+
+static void ac97_del_adapter(struct ac97_controller *ac97_ctrl)
+{
+	mutex_lock(&ac97_controllers_mutex);
+	ac97_ctrl_codecs_unregister(ac97_ctrl);
+	list_del(&ac97_ctrl->controllers);
+	idr_remove(&ac97_adapter_idr, ac97_ctrl->nr);
+	mutex_unlock(&ac97_controllers_mutex);
+	put_device(&ac97_ctrl->adap);
+}
+
+/**
+ * snd_ac97_controller_register - register an ac97 controller
+ * @ops: the ac97 bus operations
+ * @dev: the device providing the ac97 DC function
+ * @slots_available: mask of the ac97 codecs that can be scanned and probed
+ *                   bit0 => codec 0, bit1 => codec 1 ... bit 3 => codec 3
+ *
+ * Register a digital controller which can control up to 4 ac97 codecs. This is
+ * the controller side of the AC97 AC-link, while the slave side are the codecs.
+ *
+ * Returns a valid controller upon success, negative pointer value upon error
+ */
+struct ac97_controller *snd_ac97_controller_register(
+	const struct ac97_controller_ops *ops, struct device *dev,
+	unsigned short slots_available, void **codecs_pdata)
+{
+	struct ac97_controller *ac97_ctrl;
+	int ret, i;
+
+	ac97_ctrl = kzalloc(sizeof(*ac97_ctrl), GFP_KERNEL);
+	if (!ac97_ctrl)
+		return ERR_PTR(-ENOMEM);
+
+	for (i = 0; i < AC97_BUS_MAX_CODECS && codecs_pdata; i++)
+		ac97_ctrl->codecs_pdata[i] = codecs_pdata[i];
+
+	ac97_ctrl->ops = ops;
+	ac97_ctrl->slots_available = slots_available;
+	ac97_ctrl->parent = dev;
+	ret = ac97_add_adapter(ac97_ctrl);
+
+	if (ret)
+		goto err;
+	ac97_bus_reset(ac97_ctrl);
+	ac97_bus_scan(ac97_ctrl);
+
+	return ac97_ctrl;
+err:
+	kfree(ac97_ctrl);
+	return ERR_PTR(ret);
+}
+EXPORT_SYMBOL(snd_ac97_controller_register);
+
+/**
+ * snd_ac97_controller_unregister - unregister an ac97 controller
+ * @ac97_ctrl: the device previously provided to ac97_controller_register()
+ *
+ */
+void snd_ac97_controller_unregister(struct ac97_controller *ac97_ctrl)
+{
+	ac97_del_adapter(ac97_ctrl);
+}
+EXPORT_SYMBOL(snd_ac97_controller_unregister);
+
+#ifdef CONFIG_PM
+static int ac97_pm_runtime_suspend(struct device *dev)
+{
+	struct ac97_codec_device *codec = to_ac97_device(dev);
+	int ret = pm_generic_runtime_suspend(dev);
+
+	if (ret == 0 && dev->driver) {
+		if (pm_runtime_is_irq_safe(dev))
+			clk_disable(codec->clk);
+		else
+			clk_disable_unprepare(codec->clk);
+	}
+
+	return ret;
+}
+
+static int ac97_pm_runtime_resume(struct device *dev)
+{
+	struct ac97_codec_device *codec = to_ac97_device(dev);
+	int ret;
+
+	if (dev->driver) {
+		if (pm_runtime_is_irq_safe(dev))
+			ret = clk_enable(codec->clk);
+		else
+			ret = clk_prepare_enable(codec->clk);
+		if (ret)
+			return ret;
+	}
+
+	return pm_generic_runtime_resume(dev);
+}
+#endif /* CONFIG_PM */
+
+static const struct dev_pm_ops ac97_pm = {
+	.suspend	= pm_generic_suspend,
+	.resume		= pm_generic_resume,
+	.freeze		= pm_generic_freeze,
+	.thaw		= pm_generic_thaw,
+	.poweroff	= pm_generic_poweroff,
+	.restore	= pm_generic_restore,
+	SET_RUNTIME_PM_OPS(
+		ac97_pm_runtime_suspend,
+		ac97_pm_runtime_resume,
+		NULL)
+};
+
+static int ac97_get_enable_clk(struct ac97_codec_device *adev)
+{
+	int ret;
+
+	adev->clk = clk_get(&adev->dev, "ac97_clk");
+	if (IS_ERR(adev->clk))
+		return PTR_ERR(adev->clk);
+
+	ret = clk_prepare_enable(adev->clk);
+	if (ret)
+		clk_put(adev->clk);
+
+	return ret;
+}
+
+static void ac97_put_disable_clk(struct ac97_codec_device *adev)
+{
+	clk_disable_unprepare(adev->clk);
+	clk_put(adev->clk);
+}
+
+static ssize_t vendor_id_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	struct ac97_codec_device *codec = to_ac97_device(dev);
+
+	return sprintf(buf, "%08x", codec->vendor_id);
+}
+DEVICE_ATTR_RO(vendor_id);
+
+static struct attribute *ac97_dev_attrs[] = {
+	&dev_attr_vendor_id.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(ac97_dev);
+
+static int ac97_bus_match(struct device *dev, struct device_driver *drv)
+{
+	struct ac97_codec_device *adev = to_ac97_device(dev);
+	struct ac97_codec_driver *adrv = to_ac97_driver(drv);
+	const struct ac97_id *id = adrv->id_table;
+	int i = 0;
+
+	if (adev->vendor_id == 0x0 || adev->vendor_id == 0xffffffff)
+		return false;
+
+	do {
+		if ((id[i].id & id->mask) == (adev->vendor_id & id[i].mask))
+			return true;
+	} while (id[i++].id);
+
+	return false;
+}
+
+static int ac97_bus_probe(struct device *dev)
+{
+	struct ac97_codec_device *adev = to_ac97_device(dev);
+	struct ac97_codec_driver *adrv = to_ac97_driver(dev->driver);
+	int ret;
+
+	ret = ac97_get_enable_clk(adev);
+	if (ret)
+		return ret;
+
+	pm_runtime_get_noresume(dev);
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+
+	ret = adrv->probe(adev);
+	if (ret == 0)
+		return 0;
+
+	pm_runtime_disable(dev);
+	pm_runtime_set_suspended(dev);
+	pm_runtime_put_noidle(dev);
+	ac97_put_disable_clk(adev);
+
+	return ret;
+}
+
+static int ac97_bus_remove(struct device *dev)
+{
+	struct ac97_codec_device *adev = to_ac97_device(dev);
+	struct ac97_codec_driver *adrv = to_ac97_driver(dev->driver);
+	int ret;
+
+	ret = pm_runtime_get_sync(dev);
+	if (ret)
+		return ret;
+
+	ret = adrv->remove(adev);
+	pm_runtime_put_noidle(dev);
+	if (ret == 0)
+		ac97_put_disable_clk(adev);
+
+	return ret;
+}
+
+static struct bus_type ac97_bus_type = {
+	.name		= "ac97",
+	.dev_groups	= ac97_dev_groups,
+	.match		= ac97_bus_match,
+	.pm		= &ac97_pm,
+	.probe		= ac97_bus_probe,
+	.remove		= ac97_bus_remove,
+};
+
+static int __init ac97_bus_init(void)
+{
+	return bus_register(&ac97_bus_type);
+}
+subsys_initcall(ac97_bus_init);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Robert Jarzmik <robert.jarzmik@free.fr>");
diff --git a/sound/ac97/codec.c b/sound/ac97/codec.c
new file mode 100644
index 000000000000..a835f03744bf
--- /dev/null
+++ b/sound/ac97/codec.c
@@ -0,0 +1,15 @@
+/*
+ *  Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <sound/ac97_codec.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/controller.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <sound/soc.h>	/* For compat_ac97_* */
+
diff --git a/sound/ac97/snd_ac97_compat.c b/sound/ac97/snd_ac97_compat.c
new file mode 100644
index 000000000000..ac8d835c1513
--- /dev/null
+++ b/sound/ac97/snd_ac97_compat.c
@@ -0,0 +1,105 @@
+/*
+ *  Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/compat.h>
+#include <sound/ac97/controller.h>
+#include <sound/soc.h>
+
+#include "ac97_core.h"
+
+static void compat_ac97_reset(struct snd_ac97 *ac97)
+{
+	struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
+	struct ac97_controller *actrl = adev->ac97_ctrl;
+
+	if (actrl->ops->reset)
+		actrl->ops->reset(actrl);
+}
+
+static void compat_ac97_warm_reset(struct snd_ac97 *ac97)
+{
+	struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
+	struct ac97_controller *actrl = adev->ac97_ctrl;
+
+	if (actrl->ops->warm_reset)
+		actrl->ops->warm_reset(actrl);
+}
+
+static void compat_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
+			      unsigned short val)
+{
+	struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
+	struct ac97_controller *actrl = adev->ac97_ctrl;
+
+	actrl->ops->write(actrl, ac97->num, reg, val);
+}
+
+static unsigned short compat_ac97_read(struct snd_ac97 *ac97,
+				       unsigned short reg)
+{
+	struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
+	struct ac97_controller *actrl = adev->ac97_ctrl;
+
+	return actrl->ops->read(actrl, ac97->num, reg);
+}
+
+static struct snd_ac97_bus_ops compat_snd_ac97_bus_ops = {
+	.reset = compat_ac97_reset,
+	.warm_reset = compat_ac97_warm_reset,
+	.write = compat_ac97_write,
+	.read = compat_ac97_read,
+};
+
+static struct snd_ac97_bus compat_soc_ac97_bus = {
+	.ops = &compat_snd_ac97_bus_ops,
+};
+
+struct snd_ac97 *snd_ac97_compat_alloc(struct ac97_codec_device *adev)
+{
+	struct snd_ac97 *ac97;
+
+	ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
+	if (ac97 == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	ac97->dev = adev->dev;
+	ac97->private_data = adev;
+	ac97->bus = &compat_soc_ac97_bus;
+	return ac97;
+}
+EXPORT_SYMBOL_GPL(snd_ac97_compat_alloc);
+
+void snd_ac97_compat_release(struct snd_ac97 *ac97)
+{
+	kfree(ac97);
+}
+EXPORT_SYMBOL_GPL(snd_ac97_compat_release);
+
+int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id,
+	unsigned int id_mask)
+{
+	struct ac97_codec_device *adev = to_ac97_device(ac97->private_data);
+	struct ac97_controller *actrl = adev->ac97_ctrl;
+
+	if (try_warm) {
+		compat_ac97_warm_reset(ac97);
+		if (snd_ac97_bus_scan_one(actrl, adev->num) == adev->vendor_id)
+			return 1;
+	}
+
+	compat_ac97_reset(ac97);
+	compat_ac97_warm_reset(ac97);
+	if (snd_ac97_bus_scan_one(actrl, adev->num) == adev->vendor_id)
+		return 0;
+
+	return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(snd_ac97_reset);
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 02/12] ASoC: add new ac97 bus support
  2017-06-19  7:26 ` Robert Jarzmik
@ 2017-06-19  7:26   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:26 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

Add the new ac97 bus support, with ac97 bus automatic probing.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
 sound/Kconfig     | 2 ++
 sound/Makefile    | 1 +
 sound/soc/Kconfig | 4 ++++
 3 files changed, 7 insertions(+)

diff --git a/sound/Kconfig b/sound/Kconfig
index ee2e69a9ecd1..141b145c4195 100644
--- a/sound/Kconfig
+++ b/sound/Kconfig
@@ -80,6 +80,8 @@ source "sound/hda/Kconfig"
 
 source "sound/ppc/Kconfig"
 
+source "sound/ac97/Kconfig"
+
 source "sound/aoa/Kconfig"
 
 source "sound/arm/Kconfig"
diff --git a/sound/Makefile b/sound/Makefile
index 6de45d2c32f7..c03b0bed65d5 100644
--- a/sound/Makefile
+++ b/sound/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_SND_AOA) += aoa/
 
 # This one must be compilable even if sound is configured out
 obj-$(CONFIG_AC97_BUS) += ac97_bus.o
+obj-$(CONFIG_AC97_BUS_NEW) += ac97/
 
 ifeq ($(CONFIG_SND),y)
   obj-y += last.o
diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
index 182d92efc7c8..5ad0a0422054 100644
--- a/sound/soc/Kconfig
+++ b/sound/soc/Kconfig
@@ -6,6 +6,7 @@ menuconfig SND_SOC
 	tristate "ALSA for SoC audio support"
 	select SND_PCM
 	select AC97_BUS if SND_SOC_AC97_BUS
+	select AC97_BUS_NEW if SND_SOC_AC97_BUS_NEW
 	select SND_JACK
 	select REGMAP_I2C if I2C
 	select REGMAP_SPI if SPI_MASTER
@@ -25,6 +26,9 @@ if SND_SOC
 config SND_SOC_AC97_BUS
 	bool
 
+config SND_SOC_AC97_BUS_NEW
+	bool
+
 config SND_SOC_GENERIC_DMAENGINE_PCM
 	bool
 	select SND_DMAENGINE_PCM
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 02/12] ASoC: add new ac97 bus support
@ 2017-06-19  7:26   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:26 UTC (permalink / raw)
  To: linux-arm-kernel

Add the new ac97 bus support, with ac97 bus automatic probing.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
 sound/Kconfig     | 2 ++
 sound/Makefile    | 1 +
 sound/soc/Kconfig | 4 ++++
 3 files changed, 7 insertions(+)

diff --git a/sound/Kconfig b/sound/Kconfig
index ee2e69a9ecd1..141b145c4195 100644
--- a/sound/Kconfig
+++ b/sound/Kconfig
@@ -80,6 +80,8 @@ source "sound/hda/Kconfig"
 
 source "sound/ppc/Kconfig"
 
+source "sound/ac97/Kconfig"
+
 source "sound/aoa/Kconfig"
 
 source "sound/arm/Kconfig"
diff --git a/sound/Makefile b/sound/Makefile
index 6de45d2c32f7..c03b0bed65d5 100644
--- a/sound/Makefile
+++ b/sound/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_SND_AOA) += aoa/
 
 # This one must be compilable even if sound is configured out
 obj-$(CONFIG_AC97_BUS) += ac97_bus.o
+obj-$(CONFIG_AC97_BUS_NEW) += ac97/
 
 ifeq ($(CONFIG_SND),y)
   obj-y += last.o
diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
index 182d92efc7c8..5ad0a0422054 100644
--- a/sound/soc/Kconfig
+++ b/sound/soc/Kconfig
@@ -6,6 +6,7 @@ menuconfig SND_SOC
 	tristate "ALSA for SoC audio support"
 	select SND_PCM
 	select AC97_BUS if SND_SOC_AC97_BUS
+	select AC97_BUS_NEW if SND_SOC_AC97_BUS_NEW
 	select SND_JACK
 	select REGMAP_I2C if I2C
 	select REGMAP_SPI if SPI_MASTER
@@ -25,6 +26,9 @@ if SND_SOC
 config SND_SOC_AC97_BUS
 	bool
 
+config SND_SOC_AC97_BUS_NEW
+	bool
+
 config SND_SOC_GENERIC_DMAENGINE_PCM
 	bool
 	select SND_DMAENGINE_PCM
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 03/12] ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic
  2017-06-19  7:26 ` Robert Jarzmik
@ 2017-06-19  7:27   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

All pxa library functions don't use the input parameters for nothing but
slot number. This simplifies their prototypes, and makes them usable by
both the legacy ac97 bus and the new ac97 bus.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 include/sound/pxa2xx-lib.h  | 15 +++++++++------
 sound/arm/pxa2xx-ac97-lib.c | 37 +++++++++++++++++++++----------------
 sound/arm/pxa2xx-ac97.c     | 35 +++++++++++++++++++++++++++--------
 sound/soc/pxa/pxa2xx-ac97.c | 32 ++++++++++++++++++++++++++------
 4 files changed, 83 insertions(+), 36 deletions(-)

diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
index 6ef629bde164..85352becec7c 100644
--- a/include/sound/pxa2xx-lib.h
+++ b/include/sound/pxa2xx-lib.h
@@ -1,10 +1,13 @@
 #ifndef PXA2XX_LIB_H
 #define PXA2XX_LIB_H
 
+#include <uapi/sound/asound.h>
 #include <linux/platform_device.h>
-#include <sound/ac97_codec.h>
 
 /* PCM */
+struct snd_pcm_substream;
+struct snd_pcm_hw_params;
+struct snd_pcm;
 
 extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
 				struct snd_pcm_hw_params *params);
@@ -21,12 +24,12 @@ extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
 
 /* AC97 */
 
-extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
-extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
+extern int pxa2xx_ac97_read(int slot, unsigned short reg);
+extern int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val);
 
-extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97);
-extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97);
-extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97);
+extern bool pxa2xx_ac97_try_warm_reset(void);
+extern bool pxa2xx_ac97_try_cold_reset(void);
+extern void pxa2xx_ac97_finish_reset(void);
 
 extern int pxa2xx_ac97_hw_suspend(void);
 extern int pxa2xx_ac97_hw_resume(void);
diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c
index 39c3969ac1c7..5950a9e218d9 100644
--- a/sound/arm/pxa2xx-ac97-lib.c
+++ b/sound/arm/pxa2xx-ac97-lib.c
@@ -20,7 +20,6 @@
 #include <linux/io.h>
 #include <linux/gpio.h>
 
-#include <sound/ac97_codec.h>
 #include <sound/pxa2xx-lib.h>
 
 #include <mach/irqs.h>
@@ -46,38 +45,41 @@ extern void pxa27x_configure_ac97reset(int reset_gpio, bool to_gpio);
  * 1 jiffy timeout if interrupt never comes).
  */
 
-unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
+int pxa2xx_ac97_read(int slot, unsigned short reg)
 {
-	unsigned short val = -1;
+	int val = -ENODEV;
 	volatile u32 *reg_addr;
 
+	if (slot > 0)
+		return -ENODEV;
+
 	mutex_lock(&car_mutex);
 
 	/* set up primary or secondary codec space */
 	if (cpu_is_pxa25x() && reg == AC97_GPIO_STATUS)
-		reg_addr = ac97->num ? &SMC_REG_BASE : &PMC_REG_BASE;
+		reg_addr = slot ? &SMC_REG_BASE : &PMC_REG_BASE;
 	else
-		reg_addr = ac97->num ? &SAC_REG_BASE : &PAC_REG_BASE;
+		reg_addr = slot ? &SAC_REG_BASE : &PAC_REG_BASE;
 	reg_addr += (reg >> 1);
 
 	/* start read access across the ac97 link */
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
-	val = *reg_addr;
+	val = (*reg_addr & 0xffff);
 	if (reg == AC97_GPIO_STATUS)
 		goto out;
 	if (wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_SDONE, 1) <= 0 &&
 	    !((GSR | gsr_bits) & GSR_SDONE)) {
 		printk(KERN_ERR "%s: read error (ac97_reg=%d GSR=%#lx)\n",
 				__func__, reg, GSR | gsr_bits);
-		val = -1;
+		val = -ETIMEDOUT;
 		goto out;
 	}
 
 	/* valid data now */
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
-	val = *reg_addr;
+	val = (*reg_addr & 0xffff);
 	/* but we've just started another cycle... */
 	wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_SDONE, 1);
 
@@ -86,29 +88,32 @@ out:	mutex_unlock(&car_mutex);
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_read);
 
-void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
-			unsigned short val)
+int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val)
 {
 	volatile u32 *reg_addr;
+	int ret = 0;
 
 	mutex_lock(&car_mutex);
 
 	/* set up primary or secondary codec space */
 	if (cpu_is_pxa25x() && reg == AC97_GPIO_STATUS)
-		reg_addr = ac97->num ? &SMC_REG_BASE : &PMC_REG_BASE;
+		reg_addr = slot ? &SMC_REG_BASE : &PMC_REG_BASE;
 	else
-		reg_addr = ac97->num ? &SAC_REG_BASE : &PAC_REG_BASE;
+		reg_addr = slot ? &SAC_REG_BASE : &PAC_REG_BASE;
 	reg_addr += (reg >> 1);
 
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
 	*reg_addr = val;
 	if (wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_CDONE, 1) <= 0 &&
-	    !((GSR | gsr_bits) & GSR_CDONE))
+	    !((GSR | gsr_bits) & GSR_CDONE)) {
 		printk(KERN_ERR "%s: write error (ac97_reg=%d GSR=%#lx)\n",
 				__func__, reg, GSR | gsr_bits);
+		ret = -EIO;
+	}
 
 	mutex_unlock(&car_mutex);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_write);
 
@@ -188,7 +193,7 @@ static inline void pxa_ac97_cold_pxa3xx(void)
 }
 #endif
 
-bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
+bool pxa2xx_ac97_try_warm_reset(void)
 {
 	unsigned long gsr;
 	unsigned int timeout = 100;
@@ -225,7 +230,7 @@ bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_warm_reset);
 
-bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
+bool pxa2xx_ac97_try_cold_reset(void)
 {
 	unsigned long gsr;
 	unsigned int timeout = 1000;
@@ -263,7 +268,7 @@ bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_cold_reset);
 
 
-void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97)
+void pxa2xx_ac97_finish_reset(void)
 {
 	GCR &= ~(GCR_PRIRDY_IEN|GCR_SECRDY_IEN);
 	GCR |= GCR_SDONE_IE|GCR_CDONE_IE;
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index fbd5dad0c484..4bc244c40f80 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -29,19 +29,38 @@
 
 #include "pxa2xx-pcm.h"
 
-static void pxa2xx_ac97_reset(struct snd_ac97 *ac97)
+static void pxa2xx_ac97_legacy_reset(struct snd_ac97 *ac97)
 {
-	if (!pxa2xx_ac97_try_cold_reset(ac97)) {
-		pxa2xx_ac97_try_warm_reset(ac97);
-	}
+	if (!pxa2xx_ac97_try_cold_reset())
+		pxa2xx_ac97_try_warm_reset();
+
+	pxa2xx_ac97_finish_reset();
+}
+
+static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
+					      unsigned short reg)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_read(ac97->num, reg);
+	if (ret < 0)
+		return 0;
+	else
+		return (unsigned short)(ret & 0xffff);
+}
+
+static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
+				     unsigned short reg, unsigned short val)
+{
+	int __always_unused ret;
 
-	pxa2xx_ac97_finish_reset(ac97);
+	ret = pxa2xx_ac97_write(ac97->num, reg, val);
 }
 
 static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_read,
-	.write	= pxa2xx_ac97_write,
-	.reset	= pxa2xx_ac97_reset,
+	.read	= pxa2xx_ac97_legacy_read,
+	.write	= pxa2xx_ac97_legacy_write,
+	.reset	= pxa2xx_ac97_legacy_reset,
 };
 
 static struct pxad_param pxa2xx_ac97_pcm_out_req = {
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index 2e2fb1838ec2..b07d64ef49ba 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -29,21 +29,41 @@
 
 static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
 {
-	pxa2xx_ac97_try_warm_reset(ac97);
+	pxa2xx_ac97_try_warm_reset();
 
-	pxa2xx_ac97_finish_reset(ac97);
+	pxa2xx_ac97_finish_reset();
 }
 
 static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
 {
-	pxa2xx_ac97_try_cold_reset(ac97);
+	pxa2xx_ac97_try_cold_reset();
 
-	pxa2xx_ac97_finish_reset(ac97);
+	pxa2xx_ac97_finish_reset();
+}
+
+static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
+					      unsigned short reg)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_read(ac97->num, reg);
+	if (ret < 0)
+		return 0;
+	else
+		return (unsigned short)(ret & 0xffff);
+}
+
+static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
+				     unsigned short reg, unsigned short val)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_write(ac97->num, reg, val);
 }
 
 static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_read,
-	.write	= pxa2xx_ac97_write,
+	.read	= pxa2xx_ac97_legacy_read,
+	.write	= pxa2xx_ac97_legacy_write,
 	.warm_reset	= pxa2xx_ac97_warm_reset,
 	.reset	= pxa2xx_ac97_cold_reset,
 };
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 03/12] ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: linux-arm-kernel

All pxa library functions don't use the input parameters for nothing but
slot number. This simplifies their prototypes, and makes them usable by
both the legacy ac97 bus and the new ac97 bus.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 include/sound/pxa2xx-lib.h  | 15 +++++++++------
 sound/arm/pxa2xx-ac97-lib.c | 37 +++++++++++++++++++++----------------
 sound/arm/pxa2xx-ac97.c     | 35 +++++++++++++++++++++++++++--------
 sound/soc/pxa/pxa2xx-ac97.c | 32 ++++++++++++++++++++++++++------
 4 files changed, 83 insertions(+), 36 deletions(-)

diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
index 6ef629bde164..85352becec7c 100644
--- a/include/sound/pxa2xx-lib.h
+++ b/include/sound/pxa2xx-lib.h
@@ -1,10 +1,13 @@
 #ifndef PXA2XX_LIB_H
 #define PXA2XX_LIB_H
 
+#include <uapi/sound/asound.h>
 #include <linux/platform_device.h>
-#include <sound/ac97_codec.h>
 
 /* PCM */
+struct snd_pcm_substream;
+struct snd_pcm_hw_params;
+struct snd_pcm;
 
 extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
 				struct snd_pcm_hw_params *params);
@@ -21,12 +24,12 @@ extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
 
 /* AC97 */
 
-extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
-extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
+extern int pxa2xx_ac97_read(int slot, unsigned short reg);
+extern int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val);
 
-extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97);
-extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97);
-extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97);
+extern bool pxa2xx_ac97_try_warm_reset(void);
+extern bool pxa2xx_ac97_try_cold_reset(void);
+extern void pxa2xx_ac97_finish_reset(void);
 
 extern int pxa2xx_ac97_hw_suspend(void);
 extern int pxa2xx_ac97_hw_resume(void);
diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c
index 39c3969ac1c7..5950a9e218d9 100644
--- a/sound/arm/pxa2xx-ac97-lib.c
+++ b/sound/arm/pxa2xx-ac97-lib.c
@@ -20,7 +20,6 @@
 #include <linux/io.h>
 #include <linux/gpio.h>
 
-#include <sound/ac97_codec.h>
 #include <sound/pxa2xx-lib.h>
 
 #include <mach/irqs.h>
@@ -46,38 +45,41 @@ extern void pxa27x_configure_ac97reset(int reset_gpio, bool to_gpio);
  * 1 jiffy timeout if interrupt never comes).
  */
 
-unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
+int pxa2xx_ac97_read(int slot, unsigned short reg)
 {
-	unsigned short val = -1;
+	int val = -ENODEV;
 	volatile u32 *reg_addr;
 
+	if (slot > 0)
+		return -ENODEV;
+
 	mutex_lock(&car_mutex);
 
 	/* set up primary or secondary codec space */
 	if (cpu_is_pxa25x() && reg == AC97_GPIO_STATUS)
-		reg_addr = ac97->num ? &SMC_REG_BASE : &PMC_REG_BASE;
+		reg_addr = slot ? &SMC_REG_BASE : &PMC_REG_BASE;
 	else
-		reg_addr = ac97->num ? &SAC_REG_BASE : &PAC_REG_BASE;
+		reg_addr = slot ? &SAC_REG_BASE : &PAC_REG_BASE;
 	reg_addr += (reg >> 1);
 
 	/* start read access across the ac97 link */
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
-	val = *reg_addr;
+	val = (*reg_addr & 0xffff);
 	if (reg == AC97_GPIO_STATUS)
 		goto out;
 	if (wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_SDONE, 1) <= 0 &&
 	    !((GSR | gsr_bits) & GSR_SDONE)) {
 		printk(KERN_ERR "%s: read error (ac97_reg=%d GSR=%#lx)\n",
 				__func__, reg, GSR | gsr_bits);
-		val = -1;
+		val = -ETIMEDOUT;
 		goto out;
 	}
 
 	/* valid data now */
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
-	val = *reg_addr;
+	val = (*reg_addr & 0xffff);
 	/* but we've just started another cycle... */
 	wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_SDONE, 1);
 
@@ -86,29 +88,32 @@ out:	mutex_unlock(&car_mutex);
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_read);
 
-void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
-			unsigned short val)
+int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val)
 {
 	volatile u32 *reg_addr;
+	int ret = 0;
 
 	mutex_lock(&car_mutex);
 
 	/* set up primary or secondary codec space */
 	if (cpu_is_pxa25x() && reg == AC97_GPIO_STATUS)
-		reg_addr = ac97->num ? &SMC_REG_BASE : &PMC_REG_BASE;
+		reg_addr = slot ? &SMC_REG_BASE : &PMC_REG_BASE;
 	else
-		reg_addr = ac97->num ? &SAC_REG_BASE : &PAC_REG_BASE;
+		reg_addr = slot ? &SAC_REG_BASE : &PAC_REG_BASE;
 	reg_addr += (reg >> 1);
 
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
 	*reg_addr = val;
 	if (wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_CDONE, 1) <= 0 &&
-	    !((GSR | gsr_bits) & GSR_CDONE))
+	    !((GSR | gsr_bits) & GSR_CDONE)) {
 		printk(KERN_ERR "%s: write error (ac97_reg=%d GSR=%#lx)\n",
 				__func__, reg, GSR | gsr_bits);
+		ret = -EIO;
+	}
 
 	mutex_unlock(&car_mutex);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_write);
 
@@ -188,7 +193,7 @@ static inline void pxa_ac97_cold_pxa3xx(void)
 }
 #endif
 
-bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
+bool pxa2xx_ac97_try_warm_reset(void)
 {
 	unsigned long gsr;
 	unsigned int timeout = 100;
@@ -225,7 +230,7 @@ bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_warm_reset);
 
-bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
+bool pxa2xx_ac97_try_cold_reset(void)
 {
 	unsigned long gsr;
 	unsigned int timeout = 1000;
@@ -263,7 +268,7 @@ bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_cold_reset);
 
 
-void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97)
+void pxa2xx_ac97_finish_reset(void)
 {
 	GCR &= ~(GCR_PRIRDY_IEN|GCR_SECRDY_IEN);
 	GCR |= GCR_SDONE_IE|GCR_CDONE_IE;
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index fbd5dad0c484..4bc244c40f80 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -29,19 +29,38 @@
 
 #include "pxa2xx-pcm.h"
 
-static void pxa2xx_ac97_reset(struct snd_ac97 *ac97)
+static void pxa2xx_ac97_legacy_reset(struct snd_ac97 *ac97)
 {
-	if (!pxa2xx_ac97_try_cold_reset(ac97)) {
-		pxa2xx_ac97_try_warm_reset(ac97);
-	}
+	if (!pxa2xx_ac97_try_cold_reset())
+		pxa2xx_ac97_try_warm_reset();
+
+	pxa2xx_ac97_finish_reset();
+}
+
+static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
+					      unsigned short reg)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_read(ac97->num, reg);
+	if (ret < 0)
+		return 0;
+	else
+		return (unsigned short)(ret & 0xffff);
+}
+
+static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
+				     unsigned short reg, unsigned short val)
+{
+	int __always_unused ret;
 
-	pxa2xx_ac97_finish_reset(ac97);
+	ret = pxa2xx_ac97_write(ac97->num, reg, val);
 }
 
 static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_read,
-	.write	= pxa2xx_ac97_write,
-	.reset	= pxa2xx_ac97_reset,
+	.read	= pxa2xx_ac97_legacy_read,
+	.write	= pxa2xx_ac97_legacy_write,
+	.reset	= pxa2xx_ac97_legacy_reset,
 };
 
 static struct pxad_param pxa2xx_ac97_pcm_out_req = {
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index 2e2fb1838ec2..b07d64ef49ba 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -29,21 +29,41 @@
 
 static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
 {
-	pxa2xx_ac97_try_warm_reset(ac97);
+	pxa2xx_ac97_try_warm_reset();
 
-	pxa2xx_ac97_finish_reset(ac97);
+	pxa2xx_ac97_finish_reset();
 }
 
 static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
 {
-	pxa2xx_ac97_try_cold_reset(ac97);
+	pxa2xx_ac97_try_cold_reset();
 
-	pxa2xx_ac97_finish_reset(ac97);
+	pxa2xx_ac97_finish_reset();
+}
+
+static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
+					      unsigned short reg)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_read(ac97->num, reg);
+	if (ret < 0)
+		return 0;
+	else
+		return (unsigned short)(ret & 0xffff);
+}
+
+static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
+				     unsigned short reg, unsigned short val)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_write(ac97->num, reg, val);
 }
 
 static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_read,
-	.write	= pxa2xx_ac97_write,
+	.read	= pxa2xx_ac97_legacy_read,
+	.write	= pxa2xx_ac97_legacy_write,
 	.warm_reset	= pxa2xx_ac97_warm_reset,
 	.reset	= pxa2xx_ac97_cold_reset,
 };
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 04/12] Input: wm97xx: split out touchscreen registering
  2017-06-19  7:26 ` Robert Jarzmik
@ 2017-06-19  7:27   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

wm97xx-core does several things in it initialization :
 - touchscreen input device setup
 - battery device creation

As the wm97xx is actually a multi-function device handling an audio
codec, a touchscreen, a gpio block and an ADC, reshape the probing to
isolate what is truly input/touchscreen specific from the remaining
part.

This is only code shuffling, there is no functional change.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
Since v1:
 - took into account Charles's comment
---
 drivers/input/touchscreen/wm97xx-core.c | 196 +++++++++++++++++++-------------
 1 file changed, 115 insertions(+), 81 deletions(-)

diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index c9d1c91e1887..39869ffdc4fa 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -581,27 +581,85 @@ static void wm97xx_ts_input_close(struct input_dev *idev)
 		wm->codec->acc_enable(wm, 0);
 }
 
-static int wm97xx_probe(struct device *dev)
+static int wm97xx_register_touch(struct wm97xx *wm)
 {
-	struct wm97xx *wm;
-	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
-	int ret = 0, id = 0;
+	struct wm97xx_pdata *pdata = dev_get_platdata(wm->dev);
+	int ret;
 
-	wm = kzalloc(sizeof(struct wm97xx), GFP_KERNEL);
-	if (!wm)
+	wm->input_dev = devm_input_allocate_device(wm->dev);
+	if (wm->input_dev == NULL)
 		return -ENOMEM;
-	mutex_init(&wm->codec_mutex);
 
-	wm->dev = dev;
-	dev_set_drvdata(dev, wm);
-	wm->ac97 = to_ac97_t(dev);
+	/* set up touch configuration */
+	wm->input_dev->name = "wm97xx touchscreen";
+	wm->input_dev->phys = "wm97xx";
+	wm->input_dev->open = wm97xx_ts_input_open;
+	wm->input_dev->close = wm97xx_ts_input_close;
+
+	__set_bit(EV_ABS, wm->input_dev->evbit);
+	__set_bit(EV_KEY, wm->input_dev->evbit);
+	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
+
+	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
+			     abs_x[2], 0);
+	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
+			     abs_y[2], 0);
+	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
+			     abs_p[2], 0);
+
+	input_set_drvdata(wm->input_dev, wm);
+	wm->input_dev->dev.parent = wm->dev;
+
+	ret = input_register_device(wm->input_dev);
+	if (ret)
+		return ret;
+
+	/*
+	 * register our extended touch device (for machine specific
+	 * extensions)
+	 */
+	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
+	if (!wm->touch_dev) {
+		ret = -ENOMEM;
+		goto touch_err;
+	}
+	platform_set_drvdata(wm->touch_dev, wm);
+	wm->touch_dev->dev.parent = wm->dev;
+	wm->touch_dev->dev.platform_data = pdata;
+	ret = platform_device_add(wm->touch_dev);
+	if (ret < 0)
+		goto touch_reg_err;
+
+	return 0;
+touch_reg_err:
+	platform_device_put(wm->touch_dev);
+touch_err:
+	input_unregister_device(wm->input_dev);
+	wm->input_dev = NULL;
+
+	return ret;
+}
+
+static void wm97xx_unregister_touch(struct wm97xx *wm)
+{
+	platform_device_unregister(wm->touch_dev);
+	input_unregister_device(wm->input_dev);
+	wm->input_dev = NULL;
+}
+
+static int _wm97xx_probe(struct wm97xx *wm)
+{
+	int id = 0;
+
+	mutex_init(&wm->codec_mutex);
+	dev_set_drvdata(wm->dev, wm);
 
 	/* check that we have a supported codec */
 	id = wm97xx_reg_read(wm, AC97_VENDOR_ID1);
 	if (id != WM97XX_ID1) {
-		dev_err(dev, "Device with vendor %04x is not a wm97xx\n", id);
-		ret = -ENODEV;
-		goto alloc_err;
+		dev_err(wm->dev,
+			"Device with vendor %04x is not a wm97xx\n", id);
+		return -ENODEV;
 	}
 
 	wm->id = wm97xx_reg_read(wm, AC97_VENDOR_ID2);
@@ -629,8 +687,7 @@ static int wm97xx_probe(struct device *dev)
 	default:
 		dev_err(wm->dev, "Support for wm97%02x not compiled in.\n",
 			wm->id & 0xff);
-		ret = -ENODEV;
-		goto alloc_err;
+		return -ENODEV;
 	}
 
 	/* set up physical characteristics */
@@ -644,79 +701,58 @@ static int wm97xx_probe(struct device *dev)
 	wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
 	wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
 
-	wm->input_dev = input_allocate_device();
-	if (wm->input_dev == NULL) {
-		ret = -ENOMEM;
-		goto alloc_err;
-	}
-
-	/* set up touch configuration */
-	wm->input_dev->name = "wm97xx touchscreen";
-	wm->input_dev->phys = "wm97xx";
-	wm->input_dev->open = wm97xx_ts_input_open;
-	wm->input_dev->close = wm97xx_ts_input_close;
-
-	__set_bit(EV_ABS, wm->input_dev->evbit);
-	__set_bit(EV_KEY, wm->input_dev->evbit);
-	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
-
-	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
-			     abs_x[2], 0);
-	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
-			     abs_y[2], 0);
-	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
-			     abs_p[2], 0);
+	return wm97xx_register_touch(wm);
+}
 
-	input_set_drvdata(wm->input_dev, wm);
-	wm->input_dev->dev.parent = dev;
+static void wm97xx_remove_battery(struct wm97xx *wm)
+{
+	platform_device_unregister(wm->battery_dev);
+}
 
-	ret = input_register_device(wm->input_dev);
-	if (ret < 0)
-		goto dev_alloc_err;
+static int wm97xx_add_battery(struct wm97xx *wm,
+			      struct wm97xx_batt_pdata *pdata)
+{
+	int ret;
 
-	/* register our battery device */
 	wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
-	if (!wm->battery_dev) {
-		ret = -ENOMEM;
-		goto batt_err;
-	}
+	if (!wm->battery_dev)
+		return -ENOMEM;
+
 	platform_set_drvdata(wm->battery_dev, wm);
-	wm->battery_dev->dev.parent = dev;
-	wm->battery_dev->dev.platform_data = pdata ? pdata->batt_pdata : NULL;
+	wm->battery_dev->dev.parent = wm->dev;
+	wm->battery_dev->dev.platform_data = pdata;
 	ret = platform_device_add(wm->battery_dev);
-	if (ret < 0)
-		goto batt_reg_err;
+	if (ret)
+		platform_device_put(wm->battery_dev);
 
-	/* register our extended touch device (for machine specific
-	 * extensions) */
-	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
-	if (!wm->touch_dev) {
-		ret = -ENOMEM;
-		goto touch_err;
-	}
-	platform_set_drvdata(wm->touch_dev, wm);
-	wm->touch_dev->dev.parent = dev;
-	wm->touch_dev->dev.platform_data = pdata;
-	ret = platform_device_add(wm->touch_dev);
+	return ret;
+}
+
+static int wm97xx_probe(struct device *dev)
+{
+	struct wm97xx *wm;
+	int ret;
+	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
+
+	wm = devm_kzalloc(dev, sizeof(struct wm97xx), GFP_KERNEL);
+	if (!wm)
+		return -ENOMEM;
+
+	wm->dev = dev;
+	wm->ac97 = to_ac97_t(dev);
+
+	ret =  _wm97xx_probe(wm);
+	if (ret)
+		return ret;
+
+	ret = wm97xx_add_battery(wm, pdata ? pdata->batt_pdata : NULL);
 	if (ret < 0)
-		goto touch_reg_err;
+		goto batt_err;
 
 	return ret;
 
- touch_reg_err:
-	platform_device_put(wm->touch_dev);
- touch_err:
-	platform_device_del(wm->battery_dev);
- batt_reg_err:
-	platform_device_put(wm->battery_dev);
- batt_err:
-	input_unregister_device(wm->input_dev);
-	wm->input_dev = NULL;
- dev_alloc_err:
-	input_free_device(wm->input_dev);
- alloc_err:
-	kfree(wm);
-
+batt_err:
+	wm97xx_unregister_touch(wm);
 	return ret;
 }
 
@@ -724,10 +760,8 @@ static int wm97xx_remove(struct device *dev)
 {
 	struct wm97xx *wm = dev_get_drvdata(dev);
 
-	platform_device_unregister(wm->battery_dev);
-	platform_device_unregister(wm->touch_dev);
-	input_unregister_device(wm->input_dev);
-	kfree(wm);
+	wm97xx_remove_battery(wm);
+	wm97xx_unregister_touch(wm);
 
 	return 0;
 }
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 04/12] Input: wm97xx: split out touchscreen registering
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: linux-arm-kernel

wm97xx-core does several things in it initialization :
 - touchscreen input device setup
 - battery device creation

As the wm97xx is actually a multi-function device handling an audio
codec, a touchscreen, a gpio block and an ADC, reshape the probing to
isolate what is truly input/touchscreen specific from the remaining
part.

This is only code shuffling, there is no functional change.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
Since v1:
 - took into account Charles's comment
---
 drivers/input/touchscreen/wm97xx-core.c | 196 +++++++++++++++++++-------------
 1 file changed, 115 insertions(+), 81 deletions(-)

diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index c9d1c91e1887..39869ffdc4fa 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -581,27 +581,85 @@ static void wm97xx_ts_input_close(struct input_dev *idev)
 		wm->codec->acc_enable(wm, 0);
 }
 
-static int wm97xx_probe(struct device *dev)
+static int wm97xx_register_touch(struct wm97xx *wm)
 {
-	struct wm97xx *wm;
-	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
-	int ret = 0, id = 0;
+	struct wm97xx_pdata *pdata = dev_get_platdata(wm->dev);
+	int ret;
 
-	wm = kzalloc(sizeof(struct wm97xx), GFP_KERNEL);
-	if (!wm)
+	wm->input_dev = devm_input_allocate_device(wm->dev);
+	if (wm->input_dev == NULL)
 		return -ENOMEM;
-	mutex_init(&wm->codec_mutex);
 
-	wm->dev = dev;
-	dev_set_drvdata(dev, wm);
-	wm->ac97 = to_ac97_t(dev);
+	/* set up touch configuration */
+	wm->input_dev->name = "wm97xx touchscreen";
+	wm->input_dev->phys = "wm97xx";
+	wm->input_dev->open = wm97xx_ts_input_open;
+	wm->input_dev->close = wm97xx_ts_input_close;
+
+	__set_bit(EV_ABS, wm->input_dev->evbit);
+	__set_bit(EV_KEY, wm->input_dev->evbit);
+	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
+
+	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
+			     abs_x[2], 0);
+	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
+			     abs_y[2], 0);
+	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
+			     abs_p[2], 0);
+
+	input_set_drvdata(wm->input_dev, wm);
+	wm->input_dev->dev.parent = wm->dev;
+
+	ret = input_register_device(wm->input_dev);
+	if (ret)
+		return ret;
+
+	/*
+	 * register our extended touch device (for machine specific
+	 * extensions)
+	 */
+	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
+	if (!wm->touch_dev) {
+		ret = -ENOMEM;
+		goto touch_err;
+	}
+	platform_set_drvdata(wm->touch_dev, wm);
+	wm->touch_dev->dev.parent = wm->dev;
+	wm->touch_dev->dev.platform_data = pdata;
+	ret = platform_device_add(wm->touch_dev);
+	if (ret < 0)
+		goto touch_reg_err;
+
+	return 0;
+touch_reg_err:
+	platform_device_put(wm->touch_dev);
+touch_err:
+	input_unregister_device(wm->input_dev);
+	wm->input_dev = NULL;
+
+	return ret;
+}
+
+static void wm97xx_unregister_touch(struct wm97xx *wm)
+{
+	platform_device_unregister(wm->touch_dev);
+	input_unregister_device(wm->input_dev);
+	wm->input_dev = NULL;
+}
+
+static int _wm97xx_probe(struct wm97xx *wm)
+{
+	int id = 0;
+
+	mutex_init(&wm->codec_mutex);
+	dev_set_drvdata(wm->dev, wm);
 
 	/* check that we have a supported codec */
 	id = wm97xx_reg_read(wm, AC97_VENDOR_ID1);
 	if (id != WM97XX_ID1) {
-		dev_err(dev, "Device with vendor %04x is not a wm97xx\n", id);
-		ret = -ENODEV;
-		goto alloc_err;
+		dev_err(wm->dev,
+			"Device with vendor %04x is not a wm97xx\n", id);
+		return -ENODEV;
 	}
 
 	wm->id = wm97xx_reg_read(wm, AC97_VENDOR_ID2);
@@ -629,8 +687,7 @@ static int wm97xx_probe(struct device *dev)
 	default:
 		dev_err(wm->dev, "Support for wm97%02x not compiled in.\n",
 			wm->id & 0xff);
-		ret = -ENODEV;
-		goto alloc_err;
+		return -ENODEV;
 	}
 
 	/* set up physical characteristics */
@@ -644,79 +701,58 @@ static int wm97xx_probe(struct device *dev)
 	wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
 	wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
 
-	wm->input_dev = input_allocate_device();
-	if (wm->input_dev == NULL) {
-		ret = -ENOMEM;
-		goto alloc_err;
-	}
-
-	/* set up touch configuration */
-	wm->input_dev->name = "wm97xx touchscreen";
-	wm->input_dev->phys = "wm97xx";
-	wm->input_dev->open = wm97xx_ts_input_open;
-	wm->input_dev->close = wm97xx_ts_input_close;
-
-	__set_bit(EV_ABS, wm->input_dev->evbit);
-	__set_bit(EV_KEY, wm->input_dev->evbit);
-	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
-
-	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
-			     abs_x[2], 0);
-	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
-			     abs_y[2], 0);
-	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
-			     abs_p[2], 0);
+	return wm97xx_register_touch(wm);
+}
 
-	input_set_drvdata(wm->input_dev, wm);
-	wm->input_dev->dev.parent = dev;
+static void wm97xx_remove_battery(struct wm97xx *wm)
+{
+	platform_device_unregister(wm->battery_dev);
+}
 
-	ret = input_register_device(wm->input_dev);
-	if (ret < 0)
-		goto dev_alloc_err;
+static int wm97xx_add_battery(struct wm97xx *wm,
+			      struct wm97xx_batt_pdata *pdata)
+{
+	int ret;
 
-	/* register our battery device */
 	wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
-	if (!wm->battery_dev) {
-		ret = -ENOMEM;
-		goto batt_err;
-	}
+	if (!wm->battery_dev)
+		return -ENOMEM;
+
 	platform_set_drvdata(wm->battery_dev, wm);
-	wm->battery_dev->dev.parent = dev;
-	wm->battery_dev->dev.platform_data = pdata ? pdata->batt_pdata : NULL;
+	wm->battery_dev->dev.parent = wm->dev;
+	wm->battery_dev->dev.platform_data = pdata;
 	ret = platform_device_add(wm->battery_dev);
-	if (ret < 0)
-		goto batt_reg_err;
+	if (ret)
+		platform_device_put(wm->battery_dev);
 
-	/* register our extended touch device (for machine specific
-	 * extensions) */
-	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
-	if (!wm->touch_dev) {
-		ret = -ENOMEM;
-		goto touch_err;
-	}
-	platform_set_drvdata(wm->touch_dev, wm);
-	wm->touch_dev->dev.parent = dev;
-	wm->touch_dev->dev.platform_data = pdata;
-	ret = platform_device_add(wm->touch_dev);
+	return ret;
+}
+
+static int wm97xx_probe(struct device *dev)
+{
+	struct wm97xx *wm;
+	int ret;
+	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
+
+	wm = devm_kzalloc(dev, sizeof(struct wm97xx), GFP_KERNEL);
+	if (!wm)
+		return -ENOMEM;
+
+	wm->dev = dev;
+	wm->ac97 = to_ac97_t(dev);
+
+	ret =  _wm97xx_probe(wm);
+	if (ret)
+		return ret;
+
+	ret = wm97xx_add_battery(wm, pdata ? pdata->batt_pdata : NULL);
 	if (ret < 0)
-		goto touch_reg_err;
+		goto batt_err;
 
 	return ret;
 
- touch_reg_err:
-	platform_device_put(wm->touch_dev);
- touch_err:
-	platform_device_del(wm->battery_dev);
- batt_reg_err:
-	platform_device_put(wm->battery_dev);
- batt_err:
-	input_unregister_device(wm->input_dev);
-	wm->input_dev = NULL;
- dev_alloc_err:
-	input_free_device(wm->input_dev);
- alloc_err:
-	kfree(wm);
-
+batt_err:
+	wm97xx_unregister_touch(wm);
 	return ret;
 }
 
@@ -724,10 +760,8 @@ static int wm97xx_remove(struct device *dev)
 {
 	struct wm97xx *wm = dev_get_drvdata(dev);
 
-	platform_device_unregister(wm->battery_dev);
-	platform_device_unregister(wm->touch_dev);
-	input_unregister_device(wm->input_dev);
-	kfree(wm);
+	wm97xx_remove_battery(wm);
+	wm97xx_unregister_touch(wm);
 
 	return 0;
 }
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 05/12] mfd: wm97xx-core: core support for wm97xx Codec
  2017-06-19  7:26 ` Robert Jarzmik
@ 2017-06-19  7:27   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

The WM9705, WM9712 and WM9713 are highly integrated codecs, with an
audio codec, DAC and ADC, GPIO unit and a touchscreen interface.

Historically the support was spread across drivers/input/touchscreen and
sound/soc/codecs. The sharing was done through ac97 bus sharing. This
model will not withstand the new AC97 bus model, where codecs are
discovered on runtime.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 drivers/mfd/Kconfig        |  14 +++
 drivers/mfd/Makefile       |   1 +
 drivers/mfd/wm97xx-core.c  | 282 +++++++++++++++++++++++++++++++++++++++++++++
 include/linux/mfd/wm97xx.h |  31 +++++
 4 files changed, 328 insertions(+)
 create mode 100644 drivers/mfd/wm97xx-core.c
 create mode 100644 include/linux/mfd/wm97xx.h

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 55ecdfb74d31..440677bac5c9 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1628,6 +1628,20 @@ config MFD_WM8994
 	  core support for the WM8994, in order to use the actual
 	  functionaltiy of the device other drivers must be enabled.
 
+config MFD_WM97xx
+	tristate "Wolfson Microelectronics WM97xx"
+	select MFD_CORE
+	select REGMAP_AC97
+	select AC97_BUS_COMPAT if AC97_BUS_NEW
+	help
+
+	  The WM9705, WM9712 and WM9713 is a highly integrated hi-fi CODEC
+	  designed for smartphone applications.  As well as audio functionality
+	  it has on board GPIO and a touchscreen functionality which is
+	  supported via the relevant subsystems.  This driver provides core
+	  support for the WM97xx, in order to use the actual functionaltiy of
+	  the device other drivers must be enabled.
+
 config MFD_STW481X
 	tristate "Support for ST Microelectronics STw481x"
 	depends on I2C && (ARCH_NOMADIK || COMPILE_TEST)
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 31ce07611a6f..902c2e46f310 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -69,6 +69,7 @@ obj-$(CONFIG_MFD_WM8350)	+= wm8350.o
 obj-$(CONFIG_MFD_WM8350_I2C)	+= wm8350-i2c.o
 wm8994-objs			:= wm8994-core.o wm8994-irq.o wm8994-regmap.o
 obj-$(CONFIG_MFD_WM8994)	+= wm8994.o
+obj-$(CONFIG_MFD_WM97xx)	+= wm97xx-core.o
 
 obj-$(CONFIG_TPS6105X)		+= tps6105x.o
 obj-$(CONFIG_TPS65010)		+= tps65010.o
diff --git a/drivers/mfd/wm97xx-core.c b/drivers/mfd/wm97xx-core.c
new file mode 100644
index 000000000000..0813fc9fa8ed
--- /dev/null
+++ b/drivers/mfd/wm97xx-core.c
@@ -0,0 +1,282 @@
+/*
+ * Wolfson WM97xx -- Core device
+ *
+ * Copyright (C) 2016 Robert Jarzmik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Features:
+ *  - an AC97 audio codec
+ *  - a touchscreen driver
+ *  - a GPIO block
+ */
+
+#include <linux/module.h>
+
+#include <linux/device.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/wm97xx.h>
+#include <linux/wm97xx.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/compat.h>
+
+#define WM9705_VENDOR_ID 0x574d4c05
+#define WM9712_VENDOR_ID 0x574d4c12
+#define WM9713_VENDOR_ID 0x574d4c13
+#define WM97xx_VENDOR_ID_MASK 0xffffffff
+
+struct wm97xx_priv {
+	struct regmap *regmap;
+	struct snd_ac97 *ac97;
+	struct device *dev;
+};
+
+static bool wm97xx_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case AC97_RESET ... AC97_PCM_SURR_DAC_RATE:
+	case AC97_PCM_LR_ADC_RATE:
+	case AC97_CENTER_LFE_MASTER:
+	case AC97_SPDIF ... AC97_LINE1_LEVEL:
+	case AC97_GPIO_CFG ... 0x5c:
+	case AC97_CODEC_CLASS_REV ... AC97_PCI_SID:
+	case 0x74 ... AC97_VENDOR_ID2:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool wm97xx_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case AC97_VENDOR_ID1:
+	case AC97_VENDOR_ID2:
+		return false;
+	default:
+		return wm97xx_readable_reg(dev, reg);
+	}
+}
+
+static const struct reg_default wm97xx_reg_defaults[] = {
+};
+
+static const struct regmap_config wm9705_regmap_config = {
+	.reg_bits = 16,
+	.reg_stride = 2,
+	.val_bits = 16,
+	.max_register = 0x7e,
+	.cache_type = REGCACHE_RBTREE,
+
+	.reg_defaults = wm97xx_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(wm97xx_reg_defaults),
+	.volatile_reg = regmap_ac97_default_volatile,
+	.readable_reg = wm97xx_readable_reg,
+	.writeable_reg = wm97xx_writeable_reg,
+};
+
+static const struct regmap_config wm9712_regmap_config = {
+	.reg_bits = 16,
+	.reg_stride = 2,
+	.val_bits = 16,
+	.max_register = 0x7e,
+	.cache_type = REGCACHE_RBTREE,
+
+	.reg_defaults = wm97xx_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(wm97xx_reg_defaults),
+	.volatile_reg = regmap_ac97_default_volatile,
+	.readable_reg = wm97xx_readable_reg,
+	.writeable_reg = wm97xx_writeable_reg,
+};
+
+static int wm9705_register(struct wm97xx_priv *wm97xx)
+{
+	return 0;
+}
+
+static int wm9712_register(struct wm97xx_priv *wm97xx)
+{
+	return 0;
+}
+
+static const struct reg_default wm9713_reg_defaults[] = {
+	{ 0x02, 0x8080 },	/* Speaker Output Volume */
+	{ 0x04, 0x8080 },	/* Headphone Output Volume */
+	{ 0x06, 0x8080 },	/* Out3/OUT4 Volume */
+	{ 0x08, 0xc880 },	/* Mono Volume */
+	{ 0x0a, 0xe808 },	/* LINEIN Volume */
+	{ 0x0c, 0xe808 },	/* DAC PGA Volume */
+	{ 0x0e, 0x0808 },	/* MIC PGA Volume */
+	{ 0x10, 0x00da },	/* MIC Routing Control */
+	{ 0x12, 0x8000 },	/* Record PGA Volume */
+	{ 0x14, 0xd600 },	/* Record Routing */
+	{ 0x16, 0xaaa0 },	/* PCBEEP Volume */
+	{ 0x18, 0xaaa0 },	/* VxDAC Volume */
+	{ 0x1a, 0xaaa0 },	/* AUXDAC Volume */
+	{ 0x1c, 0x0000 },	/* Output PGA Mux */
+	{ 0x1e, 0x0000 },	/* DAC 3D control */
+	{ 0x20, 0x0f0f },	/* DAC Tone Control*/
+	{ 0x22, 0x0040 },	/* MIC Input Select & Bias */
+	{ 0x24, 0x0000 },	/* Output Volume Mapping & Jack */
+	{ 0x26, 0x7f00 },	/* Powerdown Ctrl/Stat*/
+	{ 0x28, 0x0405 },	/* Extended Audio ID */
+	{ 0x2a, 0x0410 },	/* Extended Audio Start/Ctrl */
+	{ 0x2c, 0xbb80 },	/* Audio DACs Sample Rate */
+	{ 0x2e, 0xbb80 },	/* AUXDAC Sample Rate */
+	{ 0x32, 0xbb80 },	/* Audio ADCs Sample Rate */
+	{ 0x36, 0x4523 },	/* PCM codec control */
+	{ 0x3a, 0x2000 },	/* SPDIF control */
+	{ 0x3c, 0xfdff },	/* Powerdown 1 */
+	{ 0x3e, 0xffff },	/* Powerdown 2 */
+	{ 0x40, 0x0000 },	/* General Purpose */
+	{ 0x42, 0x0000 },	/* Fast Power-Up Control */
+	{ 0x44, 0x0080 },	/* MCLK/PLL Control */
+	{ 0x46, 0x0000 },	/* MCLK/PLL Control */
+
+	{ 0x4c, 0xfffe },	/* GPIO Pin Configuration */
+	{ 0x4e, 0xffff },	/* GPIO Pin Polarity / Type */
+	{ 0x50, 0x0000 },	/* GPIO Pin Sticky */
+	{ 0x52, 0x0000 },	/* GPIO Pin Wake-Up */
+				/* GPIO Pin Status */
+	{ 0x56, 0xfffe },	/* GPIO Pin Sharing */
+	{ 0x58, 0x4000 },	/* GPIO PullUp/PullDown */
+	{ 0x5a, 0x0000 },	/* Additional Functions 1 */
+	{ 0x5c, 0x0000 },	/* Additional Functions 2 */
+	{ 0x60, 0xb032 },	/* ALC Control */
+	{ 0x62, 0x3e00 },	/* ALC / Noise Gate Control */
+	{ 0x64, 0x0000 },	/* AUXDAC input control */
+	{ 0x74, 0x0000 },	/* Digitiser Reg 1 */
+	{ 0x76, 0x0006 },	/* Digitiser Reg 2 */
+	{ 0x78, 0x0001 },	/* Digitiser Reg 3 */
+	{ 0x7a, 0x0000 },	/* Digitiser Read Back */
+};
+
+static const struct regmap_config wm9713_regmap_config = {
+	.reg_bits = 16,
+	.reg_stride = 2,
+	.val_bits = 16,
+	.max_register = 0x7e,
+	.cache_type = REGCACHE_RBTREE,
+
+	.reg_defaults = wm9713_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(wm9713_reg_defaults),
+	.volatile_reg = regmap_ac97_default_volatile,
+	.readable_reg = wm97xx_readable_reg,
+	.writeable_reg = wm97xx_writeable_reg,
+};
+
+static int wm9713_register(struct wm97xx_priv *wm97xx,
+			   struct wm97xx_pdata *pdata)
+{
+	static struct wm97xx_platform_data codec_pdata;
+	static const struct mfd_cell cells[] = {
+		{
+			.name = "wm9713-codec",
+			.platform_data = &codec_pdata,
+			.pdata_size = sizeof(codec_pdata),
+		},
+		{
+			.name = "wm97xx-ts",
+			.platform_data = &codec_pdata,
+			.pdata_size = sizeof(codec_pdata),
+		},
+	};
+
+	codec_pdata.ac97 = wm97xx->ac97;
+	codec_pdata.regmap = devm_regmap_init_ac97(wm97xx->ac97,
+						   &wm9713_regmap_config);
+	codec_pdata.batt_pdata = pdata->batt_pdata;
+	if (IS_ERR(codec_pdata.regmap))
+		return PTR_ERR(codec_pdata.regmap);
+
+	return devm_mfd_add_devices(wm97xx->dev, -1, cells,
+				    ARRAY_SIZE(cells), NULL, 0, NULL);
+}
+
+static int wm97xx_ac97_probe(struct ac97_codec_device *adev)
+{
+	struct wm97xx_priv *wm97xx;
+	int ret;
+	void *pdata = snd_ac97_codec_get_platdata(adev);
+
+	wm97xx = devm_kzalloc(ac97_codec_dev2dev(adev),
+			      sizeof(*wm97xx), GFP_KERNEL);
+	if (!wm97xx)
+		return -ENOMEM;
+
+	wm97xx->dev = ac97_codec_dev2dev(adev);
+	wm97xx->ac97 = snd_ac97_compat_alloc(adev);
+	if (IS_ERR(wm97xx->ac97))
+		return PTR_ERR(wm97xx->ac97);
+
+
+	ac97_set_drvdata(adev, wm97xx);
+	dev_info(wm97xx->dev, "wm97xx core found, id=0x%x\n",
+		 adev->vendor_id);
+
+	switch (adev->vendor_id) {
+	case WM9705_VENDOR_ID:
+		ret = wm9705_register(wm97xx);
+		break;
+	case WM9712_VENDOR_ID:
+		ret = wm9712_register(wm97xx);
+		break;
+	case WM9713_VENDOR_ID:
+		ret = wm9713_register(wm97xx, pdata);
+		break;
+	default:
+		ret = -ENODEV;
+	}
+
+	if (ret)
+		snd_ac97_compat_release(wm97xx->ac97);
+
+	return ret;
+}
+
+static int wm97xx_ac97_remove(struct ac97_codec_device *adev)
+{
+	struct wm97xx_priv *wm97xx = ac97_get_drvdata(adev);
+
+	snd_ac97_compat_release(wm97xx->ac97);
+
+	return 0;
+}
+
+static const struct ac97_id wm97xx_ac97_ids[] = {
+	{ .id = WM9705_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK },
+	{ .id = WM9712_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK },
+	{ .id = WM9713_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK },
+	{ }
+};
+
+static struct ac97_codec_driver wm97xx_ac97_driver = {
+	.driver = {
+		.name = "wm97xx-core",
+	},
+	.probe		= wm97xx_ac97_probe,
+	.remove		= wm97xx_ac97_remove,
+	.id_table	= wm97xx_ac97_ids,
+};
+
+static int __init wm97xx_module_init(void)
+{
+	return snd_ac97_codec_driver_register(&wm97xx_ac97_driver);
+}
+module_init(wm97xx_module_init);
+
+static void __exit wm97xx_module_exit(void)
+{
+	snd_ac97_codec_driver_unregister(&wm97xx_ac97_driver);
+}
+module_exit(wm97xx_module_exit);
+
+MODULE_DESCRIPTION("WM9712, WM9713 core driver");
+MODULE_AUTHOR("Robert Jarzmik <robert.jarzmik@free.fr>");
+MODULE_LICENSE("GPL");
+
diff --git a/include/linux/mfd/wm97xx.h b/include/linux/mfd/wm97xx.h
new file mode 100644
index 000000000000..627322f14d48
--- /dev/null
+++ b/include/linux/mfd/wm97xx.h
@@ -0,0 +1,31 @@
+/*
+ * wm97xx client interface
+ *
+ * Copyright (C) 2016 Robert Jarzmik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __LINUX_MFD_WM97XX_H
+#define __LINUX_MFD_WM97XX_H
+
+struct regmap;
+struct wm97xx_batt_pdata;
+struct snd_ac97;
+
+struct wm97xx_platform_data {
+	struct snd_ac97 *ac97;
+	struct regmap *regmap;
+	struct wm97xx_batt_pdata *batt_pdata;
+};
+
+
+#endif
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 05/12] mfd: wm97xx-core: core support for wm97xx Codec
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: linux-arm-kernel

The WM9705, WM9712 and WM9713 are highly integrated codecs, with an
audio codec, DAC and ADC, GPIO unit and a touchscreen interface.

Historically the support was spread across drivers/input/touchscreen and
sound/soc/codecs. The sharing was done through ac97 bus sharing. This
model will not withstand the new AC97 bus model, where codecs are
discovered on runtime.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 drivers/mfd/Kconfig        |  14 +++
 drivers/mfd/Makefile       |   1 +
 drivers/mfd/wm97xx-core.c  | 282 +++++++++++++++++++++++++++++++++++++++++++++
 include/linux/mfd/wm97xx.h |  31 +++++
 4 files changed, 328 insertions(+)
 create mode 100644 drivers/mfd/wm97xx-core.c
 create mode 100644 include/linux/mfd/wm97xx.h

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 55ecdfb74d31..440677bac5c9 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1628,6 +1628,20 @@ config MFD_WM8994
 	  core support for the WM8994, in order to use the actual
 	  functionaltiy of the device other drivers must be enabled.
 
+config MFD_WM97xx
+	tristate "Wolfson Microelectronics WM97xx"
+	select MFD_CORE
+	select REGMAP_AC97
+	select AC97_BUS_COMPAT if AC97_BUS_NEW
+	help
+
+	  The WM9705, WM9712 and WM9713 is a highly integrated hi-fi CODEC
+	  designed for smartphone applications.  As well as audio functionality
+	  it has on board GPIO and a touchscreen functionality which is
+	  supported via the relevant subsystems.  This driver provides core
+	  support for the WM97xx, in order to use the actual functionaltiy of
+	  the device other drivers must be enabled.
+
 config MFD_STW481X
 	tristate "Support for ST Microelectronics STw481x"
 	depends on I2C && (ARCH_NOMADIK || COMPILE_TEST)
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 31ce07611a6f..902c2e46f310 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -69,6 +69,7 @@ obj-$(CONFIG_MFD_WM8350)	+= wm8350.o
 obj-$(CONFIG_MFD_WM8350_I2C)	+= wm8350-i2c.o
 wm8994-objs			:= wm8994-core.o wm8994-irq.o wm8994-regmap.o
 obj-$(CONFIG_MFD_WM8994)	+= wm8994.o
+obj-$(CONFIG_MFD_WM97xx)	+= wm97xx-core.o
 
 obj-$(CONFIG_TPS6105X)		+= tps6105x.o
 obj-$(CONFIG_TPS65010)		+= tps65010.o
diff --git a/drivers/mfd/wm97xx-core.c b/drivers/mfd/wm97xx-core.c
new file mode 100644
index 000000000000..0813fc9fa8ed
--- /dev/null
+++ b/drivers/mfd/wm97xx-core.c
@@ -0,0 +1,282 @@
+/*
+ * Wolfson WM97xx -- Core device
+ *
+ * Copyright (C) 2016 Robert Jarzmik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Features:
+ *  - an AC97 audio codec
+ *  - a touchscreen driver
+ *  - a GPIO block
+ */
+
+#include <linux/module.h>
+
+#include <linux/device.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/wm97xx.h>
+#include <linux/wm97xx.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/compat.h>
+
+#define WM9705_VENDOR_ID 0x574d4c05
+#define WM9712_VENDOR_ID 0x574d4c12
+#define WM9713_VENDOR_ID 0x574d4c13
+#define WM97xx_VENDOR_ID_MASK 0xffffffff
+
+struct wm97xx_priv {
+	struct regmap *regmap;
+	struct snd_ac97 *ac97;
+	struct device *dev;
+};
+
+static bool wm97xx_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case AC97_RESET ... AC97_PCM_SURR_DAC_RATE:
+	case AC97_PCM_LR_ADC_RATE:
+	case AC97_CENTER_LFE_MASTER:
+	case AC97_SPDIF ... AC97_LINE1_LEVEL:
+	case AC97_GPIO_CFG ... 0x5c:
+	case AC97_CODEC_CLASS_REV ... AC97_PCI_SID:
+	case 0x74 ... AC97_VENDOR_ID2:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool wm97xx_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case AC97_VENDOR_ID1:
+	case AC97_VENDOR_ID2:
+		return false;
+	default:
+		return wm97xx_readable_reg(dev, reg);
+	}
+}
+
+static const struct reg_default wm97xx_reg_defaults[] = {
+};
+
+static const struct regmap_config wm9705_regmap_config = {
+	.reg_bits = 16,
+	.reg_stride = 2,
+	.val_bits = 16,
+	.max_register = 0x7e,
+	.cache_type = REGCACHE_RBTREE,
+
+	.reg_defaults = wm97xx_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(wm97xx_reg_defaults),
+	.volatile_reg = regmap_ac97_default_volatile,
+	.readable_reg = wm97xx_readable_reg,
+	.writeable_reg = wm97xx_writeable_reg,
+};
+
+static const struct regmap_config wm9712_regmap_config = {
+	.reg_bits = 16,
+	.reg_stride = 2,
+	.val_bits = 16,
+	.max_register = 0x7e,
+	.cache_type = REGCACHE_RBTREE,
+
+	.reg_defaults = wm97xx_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(wm97xx_reg_defaults),
+	.volatile_reg = regmap_ac97_default_volatile,
+	.readable_reg = wm97xx_readable_reg,
+	.writeable_reg = wm97xx_writeable_reg,
+};
+
+static int wm9705_register(struct wm97xx_priv *wm97xx)
+{
+	return 0;
+}
+
+static int wm9712_register(struct wm97xx_priv *wm97xx)
+{
+	return 0;
+}
+
+static const struct reg_default wm9713_reg_defaults[] = {
+	{ 0x02, 0x8080 },	/* Speaker Output Volume */
+	{ 0x04, 0x8080 },	/* Headphone Output Volume */
+	{ 0x06, 0x8080 },	/* Out3/OUT4 Volume */
+	{ 0x08, 0xc880 },	/* Mono Volume */
+	{ 0x0a, 0xe808 },	/* LINEIN Volume */
+	{ 0x0c, 0xe808 },	/* DAC PGA Volume */
+	{ 0x0e, 0x0808 },	/* MIC PGA Volume */
+	{ 0x10, 0x00da },	/* MIC Routing Control */
+	{ 0x12, 0x8000 },	/* Record PGA Volume */
+	{ 0x14, 0xd600 },	/* Record Routing */
+	{ 0x16, 0xaaa0 },	/* PCBEEP Volume */
+	{ 0x18, 0xaaa0 },	/* VxDAC Volume */
+	{ 0x1a, 0xaaa0 },	/* AUXDAC Volume */
+	{ 0x1c, 0x0000 },	/* Output PGA Mux */
+	{ 0x1e, 0x0000 },	/* DAC 3D control */
+	{ 0x20, 0x0f0f },	/* DAC Tone Control*/
+	{ 0x22, 0x0040 },	/* MIC Input Select & Bias */
+	{ 0x24, 0x0000 },	/* Output Volume Mapping & Jack */
+	{ 0x26, 0x7f00 },	/* Powerdown Ctrl/Stat*/
+	{ 0x28, 0x0405 },	/* Extended Audio ID */
+	{ 0x2a, 0x0410 },	/* Extended Audio Start/Ctrl */
+	{ 0x2c, 0xbb80 },	/* Audio DACs Sample Rate */
+	{ 0x2e, 0xbb80 },	/* AUXDAC Sample Rate */
+	{ 0x32, 0xbb80 },	/* Audio ADCs Sample Rate */
+	{ 0x36, 0x4523 },	/* PCM codec control */
+	{ 0x3a, 0x2000 },	/* SPDIF control */
+	{ 0x3c, 0xfdff },	/* Powerdown 1 */
+	{ 0x3e, 0xffff },	/* Powerdown 2 */
+	{ 0x40, 0x0000 },	/* General Purpose */
+	{ 0x42, 0x0000 },	/* Fast Power-Up Control */
+	{ 0x44, 0x0080 },	/* MCLK/PLL Control */
+	{ 0x46, 0x0000 },	/* MCLK/PLL Control */
+
+	{ 0x4c, 0xfffe },	/* GPIO Pin Configuration */
+	{ 0x4e, 0xffff },	/* GPIO Pin Polarity / Type */
+	{ 0x50, 0x0000 },	/* GPIO Pin Sticky */
+	{ 0x52, 0x0000 },	/* GPIO Pin Wake-Up */
+				/* GPIO Pin Status */
+	{ 0x56, 0xfffe },	/* GPIO Pin Sharing */
+	{ 0x58, 0x4000 },	/* GPIO PullUp/PullDown */
+	{ 0x5a, 0x0000 },	/* Additional Functions 1 */
+	{ 0x5c, 0x0000 },	/* Additional Functions 2 */
+	{ 0x60, 0xb032 },	/* ALC Control */
+	{ 0x62, 0x3e00 },	/* ALC / Noise Gate Control */
+	{ 0x64, 0x0000 },	/* AUXDAC input control */
+	{ 0x74, 0x0000 },	/* Digitiser Reg 1 */
+	{ 0x76, 0x0006 },	/* Digitiser Reg 2 */
+	{ 0x78, 0x0001 },	/* Digitiser Reg 3 */
+	{ 0x7a, 0x0000 },	/* Digitiser Read Back */
+};
+
+static const struct regmap_config wm9713_regmap_config = {
+	.reg_bits = 16,
+	.reg_stride = 2,
+	.val_bits = 16,
+	.max_register = 0x7e,
+	.cache_type = REGCACHE_RBTREE,
+
+	.reg_defaults = wm9713_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(wm9713_reg_defaults),
+	.volatile_reg = regmap_ac97_default_volatile,
+	.readable_reg = wm97xx_readable_reg,
+	.writeable_reg = wm97xx_writeable_reg,
+};
+
+static int wm9713_register(struct wm97xx_priv *wm97xx,
+			   struct wm97xx_pdata *pdata)
+{
+	static struct wm97xx_platform_data codec_pdata;
+	static const struct mfd_cell cells[] = {
+		{
+			.name = "wm9713-codec",
+			.platform_data = &codec_pdata,
+			.pdata_size = sizeof(codec_pdata),
+		},
+		{
+			.name = "wm97xx-ts",
+			.platform_data = &codec_pdata,
+			.pdata_size = sizeof(codec_pdata),
+		},
+	};
+
+	codec_pdata.ac97 = wm97xx->ac97;
+	codec_pdata.regmap = devm_regmap_init_ac97(wm97xx->ac97,
+						   &wm9713_regmap_config);
+	codec_pdata.batt_pdata = pdata->batt_pdata;
+	if (IS_ERR(codec_pdata.regmap))
+		return PTR_ERR(codec_pdata.regmap);
+
+	return devm_mfd_add_devices(wm97xx->dev, -1, cells,
+				    ARRAY_SIZE(cells), NULL, 0, NULL);
+}
+
+static int wm97xx_ac97_probe(struct ac97_codec_device *adev)
+{
+	struct wm97xx_priv *wm97xx;
+	int ret;
+	void *pdata = snd_ac97_codec_get_platdata(adev);
+
+	wm97xx = devm_kzalloc(ac97_codec_dev2dev(adev),
+			      sizeof(*wm97xx), GFP_KERNEL);
+	if (!wm97xx)
+		return -ENOMEM;
+
+	wm97xx->dev = ac97_codec_dev2dev(adev);
+	wm97xx->ac97 = snd_ac97_compat_alloc(adev);
+	if (IS_ERR(wm97xx->ac97))
+		return PTR_ERR(wm97xx->ac97);
+
+
+	ac97_set_drvdata(adev, wm97xx);
+	dev_info(wm97xx->dev, "wm97xx core found, id=0x%x\n",
+		 adev->vendor_id);
+
+	switch (adev->vendor_id) {
+	case WM9705_VENDOR_ID:
+		ret = wm9705_register(wm97xx);
+		break;
+	case WM9712_VENDOR_ID:
+		ret = wm9712_register(wm97xx);
+		break;
+	case WM9713_VENDOR_ID:
+		ret = wm9713_register(wm97xx, pdata);
+		break;
+	default:
+		ret = -ENODEV;
+	}
+
+	if (ret)
+		snd_ac97_compat_release(wm97xx->ac97);
+
+	return ret;
+}
+
+static int wm97xx_ac97_remove(struct ac97_codec_device *adev)
+{
+	struct wm97xx_priv *wm97xx = ac97_get_drvdata(adev);
+
+	snd_ac97_compat_release(wm97xx->ac97);
+
+	return 0;
+}
+
+static const struct ac97_id wm97xx_ac97_ids[] = {
+	{ .id = WM9705_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK },
+	{ .id = WM9712_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK },
+	{ .id = WM9713_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK },
+	{ }
+};
+
+static struct ac97_codec_driver wm97xx_ac97_driver = {
+	.driver = {
+		.name = "wm97xx-core",
+	},
+	.probe		= wm97xx_ac97_probe,
+	.remove		= wm97xx_ac97_remove,
+	.id_table	= wm97xx_ac97_ids,
+};
+
+static int __init wm97xx_module_init(void)
+{
+	return snd_ac97_codec_driver_register(&wm97xx_ac97_driver);
+}
+module_init(wm97xx_module_init);
+
+static void __exit wm97xx_module_exit(void)
+{
+	snd_ac97_codec_driver_unregister(&wm97xx_ac97_driver);
+}
+module_exit(wm97xx_module_exit);
+
+MODULE_DESCRIPTION("WM9712, WM9713 core driver");
+MODULE_AUTHOR("Robert Jarzmik <robert.jarzmik@free.fr>");
+MODULE_LICENSE("GPL");
+
diff --git a/include/linux/mfd/wm97xx.h b/include/linux/mfd/wm97xx.h
new file mode 100644
index 000000000000..627322f14d48
--- /dev/null
+++ b/include/linux/mfd/wm97xx.h
@@ -0,0 +1,31 @@
+/*
+ * wm97xx client interface
+ *
+ * Copyright (C) 2016 Robert Jarzmik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __LINUX_MFD_WM97XX_H
+#define __LINUX_MFD_WM97XX_H
+
+struct regmap;
+struct wm97xx_batt_pdata;
+struct snd_ac97;
+
+struct wm97xx_platform_data {
+	struct snd_ac97 *ac97;
+	struct regmap *regmap;
+	struct wm97xx_batt_pdata *batt_pdata;
+};
+
+
+#endif
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 06/12] Input: wm97xx: add new AC97 bus support
  2017-06-19  7:26 ` Robert Jarzmik
@ 2017-06-19  7:27   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

This adds support for the new AC97 bus code, which discovers the devices
rather than uses platform data.

As part of this discovery, it enables a multi-function device wm97xx,
which supports touchscreen, battery, ADC and an audio codec. This patch
adds the code to bind the touchscreen "cell" as the touchscreen driver.

This was tested on the pxa architecture with a pxa270 + wm9713 + the
mioa701 touchscreen.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
 drivers/input/touchscreen/Kconfig       |  2 +-
 drivers/input/touchscreen/wm97xx-core.c | 56 ++++++++++++++++++++++++++++++++-
 2 files changed, 56 insertions(+), 2 deletions(-)

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 033599777651..22257f3e1059 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -725,7 +725,7 @@ config TOUCHSCREEN_WM831X
 
 config TOUCHSCREEN_WM97XX
 	tristate "Support for WM97xx AC97 touchscreen controllers"
-	depends on AC97_BUS
+	depends on AC97_BUS || AC97_BUS_NEW
 	help
 	  Say Y here if you have a Wolfson Microelectronics WM97xx
 	  touchscreen connected to your system. Note that this option
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index 39869ffdc4fa..fd714ee881f7 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -44,6 +44,7 @@
 #include <linux/pm.h>
 #include <linux/interrupt.h>
 #include <linux/bitops.h>
+#include <linux/mfd/wm97xx.h>
 #include <linux/workqueue.h>
 #include <linux/wm97xx.h>
 #include <linux/uaccess.h>
@@ -766,6 +767,39 @@ static int wm97xx_remove(struct device *dev)
 	return 0;
 }
 
+static int wm97xx_mfd_probe(struct platform_device *pdev)
+{
+	struct wm97xx *wm;
+	struct wm97xx_platform_data *mfd_pdata = dev_get_platdata(&pdev->dev);
+	int ret;
+
+	wm = devm_kzalloc(&pdev->dev, sizeof(struct wm97xx), GFP_KERNEL);
+	if (!wm)
+		return -ENOMEM;
+
+	wm->dev = &pdev->dev;
+	wm->ac97 = mfd_pdata->ac97;
+
+	ret =  _wm97xx_probe(wm);
+	if (ret)
+		return ret;
+
+	ret = wm97xx_add_battery(wm, mfd_pdata->batt_pdata);
+	if (ret < 0)
+		goto batt_err;
+
+	return ret;
+
+batt_err:
+	wm97xx_unregister_touch(wm);
+	return ret;
+}
+
+static int wm97xx_mfd_remove(struct platform_device *pdev)
+{
+	return wm97xx_remove(&pdev->dev);
+}
+
 static int __maybe_unused wm97xx_suspend(struct device *dev)
 {
 	struct wm97xx *wm = dev_get_drvdata(dev);
@@ -862,21 +896,41 @@ EXPORT_SYMBOL_GPL(wm97xx_unregister_mach_ops);
 
 static struct device_driver wm97xx_driver = {
 	.name =		"wm97xx-ts",
+#ifdef CONFIG_AC97_BUS
 	.bus =		&ac97_bus_type,
+#endif
 	.owner =	THIS_MODULE,
 	.probe =	wm97xx_probe,
 	.remove =	wm97xx_remove,
 	.pm =		&wm97xx_pm_ops,
 };
 
+static struct platform_driver wm97xx_mfd_driver = {
+	.driver = {
+		.name =		"wm97xx-ts",
+		.pm =		&wm97xx_pm_ops,
+	},
+	.probe =	wm97xx_mfd_probe,
+	.remove =	wm97xx_mfd_remove,
+};
+
 static int __init wm97xx_init(void)
 {
-	return driver_register(&wm97xx_driver);
+	int ret;
+
+	ret = platform_driver_register(&wm97xx_mfd_driver);
+	if (ret)
+		return ret;
+
+	if (IS_BUILTIN(CONFIG_AC97_BUS))
+		ret =  driver_register(&wm97xx_driver);
+	return ret;
 }
 
 static void __exit wm97xx_exit(void)
 {
 	driver_unregister(&wm97xx_driver);
+	platform_driver_unregister(&wm97xx_mfd_driver);
 }
 
 module_init(wm97xx_init);
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 06/12] Input: wm97xx: add new AC97 bus support
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: linux-arm-kernel

This adds support for the new AC97 bus code, which discovers the devices
rather than uses platform data.

As part of this discovery, it enables a multi-function device wm97xx,
which supports touchscreen, battery, ADC and an audio codec. This patch
adds the code to bind the touchscreen "cell" as the touchscreen driver.

This was tested on the pxa architecture with a pxa270 + wm9713 + the
mioa701 touchscreen.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
 drivers/input/touchscreen/Kconfig       |  2 +-
 drivers/input/touchscreen/wm97xx-core.c | 56 ++++++++++++++++++++++++++++++++-
 2 files changed, 56 insertions(+), 2 deletions(-)

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 033599777651..22257f3e1059 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -725,7 +725,7 @@ config TOUCHSCREEN_WM831X
 
 config TOUCHSCREEN_WM97XX
 	tristate "Support for WM97xx AC97 touchscreen controllers"
-	depends on AC97_BUS
+	depends on AC97_BUS || AC97_BUS_NEW
 	help
 	  Say Y here if you have a Wolfson Microelectronics WM97xx
 	  touchscreen connected to your system. Note that this option
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index 39869ffdc4fa..fd714ee881f7 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -44,6 +44,7 @@
 #include <linux/pm.h>
 #include <linux/interrupt.h>
 #include <linux/bitops.h>
+#include <linux/mfd/wm97xx.h>
 #include <linux/workqueue.h>
 #include <linux/wm97xx.h>
 #include <linux/uaccess.h>
@@ -766,6 +767,39 @@ static int wm97xx_remove(struct device *dev)
 	return 0;
 }
 
+static int wm97xx_mfd_probe(struct platform_device *pdev)
+{
+	struct wm97xx *wm;
+	struct wm97xx_platform_data *mfd_pdata = dev_get_platdata(&pdev->dev);
+	int ret;
+
+	wm = devm_kzalloc(&pdev->dev, sizeof(struct wm97xx), GFP_KERNEL);
+	if (!wm)
+		return -ENOMEM;
+
+	wm->dev = &pdev->dev;
+	wm->ac97 = mfd_pdata->ac97;
+
+	ret =  _wm97xx_probe(wm);
+	if (ret)
+		return ret;
+
+	ret = wm97xx_add_battery(wm, mfd_pdata->batt_pdata);
+	if (ret < 0)
+		goto batt_err;
+
+	return ret;
+
+batt_err:
+	wm97xx_unregister_touch(wm);
+	return ret;
+}
+
+static int wm97xx_mfd_remove(struct platform_device *pdev)
+{
+	return wm97xx_remove(&pdev->dev);
+}
+
 static int __maybe_unused wm97xx_suspend(struct device *dev)
 {
 	struct wm97xx *wm = dev_get_drvdata(dev);
@@ -862,21 +896,41 @@ EXPORT_SYMBOL_GPL(wm97xx_unregister_mach_ops);
 
 static struct device_driver wm97xx_driver = {
 	.name =		"wm97xx-ts",
+#ifdef CONFIG_AC97_BUS
 	.bus =		&ac97_bus_type,
+#endif
 	.owner =	THIS_MODULE,
 	.probe =	wm97xx_probe,
 	.remove =	wm97xx_remove,
 	.pm =		&wm97xx_pm_ops,
 };
 
+static struct platform_driver wm97xx_mfd_driver = {
+	.driver = {
+		.name =		"wm97xx-ts",
+		.pm =		&wm97xx_pm_ops,
+	},
+	.probe =	wm97xx_mfd_probe,
+	.remove =	wm97xx_mfd_remove,
+};
+
 static int __init wm97xx_init(void)
 {
-	return driver_register(&wm97xx_driver);
+	int ret;
+
+	ret = platform_driver_register(&wm97xx_mfd_driver);
+	if (ret)
+		return ret;
+
+	if (IS_BUILTIN(CONFIG_AC97_BUS))
+		ret =  driver_register(&wm97xx_driver);
+	return ret;
 }
 
 static void __exit wm97xx_exit(void)
 {
 	driver_unregister(&wm97xx_driver);
+	platform_driver_unregister(&wm97xx_mfd_driver);
 }
 
 module_init(wm97xx_init);
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 07/12] ASoC: wm9713: add ac97 new bus support
  2017-06-19  7:26 ` Robert Jarzmik
@ 2017-06-19  7:27   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

Add support for the new ac97 bus model, where devices are automatically
discovered on AC-Links.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 sound/soc/codecs/Kconfig  |  3 ++-
 sound/soc/codecs/wm9713.c | 39 +++++++++++++++++++++++++++------------
 2 files changed, 29 insertions(+), 13 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index e49e9da7f1f6..aebf148d7e4d 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -207,7 +207,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_WM9090 if I2C
 	select SND_SOC_WM9705 if SND_SOC_AC97_BUS
 	select SND_SOC_WM9712 if SND_SOC_AC97_BUS
-	select SND_SOC_WM9713 if SND_SOC_AC97_BUS
+	select SND_SOC_WM9713 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
         help
           Normally ASoC codec drivers are only built if a machine driver which
           uses them is also built since they are only usable with a machine
@@ -1091,6 +1091,7 @@ config SND_SOC_WM9712
 config SND_SOC_WM9713
 	tristate
 	select REGMAP_AC97
+	select AC97_BUS_COMPAT if AC97_BUS_NEW
 
 # Amp
 config SND_SOC_LM4857
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index 7e4822185feb..3df2c01d751d 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -17,12 +17,15 @@
 
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/mfd/wm97xx.h>
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/regmap.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/ac97_codec.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/compat.h>
 #include <sound/initval.h>
 #include <sound/pcm_params.h>
 #include <sound/tlv.h>
@@ -38,6 +41,7 @@ struct wm9713_priv {
 	u32 pll_in; /* PLL input frequency */
 	unsigned int hp_mixer[2];
 	struct mutex lock;
+	struct wm97xx_platform_data *mfd_pdata;
 };
 
 #define HPL_MIXER 0
@@ -1205,17 +1209,23 @@ static int wm9713_soc_resume(struct snd_soc_codec *codec)
 static int wm9713_soc_probe(struct snd_soc_codec *codec)
 {
 	struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
-	struct regmap *regmap;
+	struct regmap *regmap = NULL;
 
-	wm9713->ac97 = snd_soc_new_ac97_codec(codec, WM9713_VENDOR_ID,
-		WM9713_VENDOR_ID_MASK);
-	if (IS_ERR(wm9713->ac97))
-		return PTR_ERR(wm9713->ac97);
-
-	regmap = regmap_init_ac97(wm9713->ac97, &wm9713_regmap_config);
-	if (IS_ERR(regmap)) {
-		snd_soc_free_ac97_codec(wm9713->ac97);
-		return PTR_ERR(regmap);
+	if (wm9713->mfd_pdata) {
+		wm9713->ac97 = wm9713->mfd_pdata->ac97;
+		regmap = wm9713->mfd_pdata->regmap;
+	} else {
+#ifdef CONFIG_SND_SOC_AC97_BUS
+		wm9713->ac97 = snd_soc_new_ac97_codec(codec, WM9713_VENDOR_ID,
+						      WM9713_VENDOR_ID_MASK);
+		if (IS_ERR(wm9713->ac97))
+			return PTR_ERR(wm9713->ac97);
+		regmap = regmap_init_ac97(wm9713->ac97, &wm9713_regmap_config);
+		if (IS_ERR(regmap)) {
+			snd_soc_free_ac97_codec(wm9713->ac97);
+			return PTR_ERR(regmap);
+		}
+#endif
 	}
 
 	snd_soc_codec_init_regmap(codec, regmap);
@@ -1230,8 +1240,12 @@ static int wm9713_soc_remove(struct snd_soc_codec *codec)
 {
 	struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
 
-	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(wm9713->ac97);
+	if (!wm9713->mfd_pdata) {
+		snd_soc_codec_exit_regmap(codec);
+#ifdef CONFIG_SND_SOC_AC97_BUS
+		snd_soc_free_ac97_codec(wm9713->ac97);
+#endif
+	}
 	return 0;
 }
 
@@ -1262,6 +1276,7 @@ static int wm9713_probe(struct platform_device *pdev)
 
 	mutex_init(&wm9713->lock);
 
+	wm9713->mfd_pdata = dev_get_platdata(&pdev->dev);
 	platform_set_drvdata(pdev, wm9713);
 
 	return snd_soc_register_codec(&pdev->dev,
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 07/12] ASoC: wm9713: add ac97 new bus support
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: linux-arm-kernel

Add support for the new ac97 bus model, where devices are automatically
discovered on AC-Links.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 sound/soc/codecs/Kconfig  |  3 ++-
 sound/soc/codecs/wm9713.c | 39 +++++++++++++++++++++++++++------------
 2 files changed, 29 insertions(+), 13 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index e49e9da7f1f6..aebf148d7e4d 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -207,7 +207,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_WM9090 if I2C
 	select SND_SOC_WM9705 if SND_SOC_AC97_BUS
 	select SND_SOC_WM9712 if SND_SOC_AC97_BUS
-	select SND_SOC_WM9713 if SND_SOC_AC97_BUS
+	select SND_SOC_WM9713 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
         help
           Normally ASoC codec drivers are only built if a machine driver which
           uses them is also built since they are only usable with a machine
@@ -1091,6 +1091,7 @@ config SND_SOC_WM9712
 config SND_SOC_WM9713
 	tristate
 	select REGMAP_AC97
+	select AC97_BUS_COMPAT if AC97_BUS_NEW
 
 # Amp
 config SND_SOC_LM4857
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index 7e4822185feb..3df2c01d751d 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -17,12 +17,15 @@
 
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/mfd/wm97xx.h>
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/regmap.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/ac97_codec.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/compat.h>
 #include <sound/initval.h>
 #include <sound/pcm_params.h>
 #include <sound/tlv.h>
@@ -38,6 +41,7 @@ struct wm9713_priv {
 	u32 pll_in; /* PLL input frequency */
 	unsigned int hp_mixer[2];
 	struct mutex lock;
+	struct wm97xx_platform_data *mfd_pdata;
 };
 
 #define HPL_MIXER 0
@@ -1205,17 +1209,23 @@ static int wm9713_soc_resume(struct snd_soc_codec *codec)
 static int wm9713_soc_probe(struct snd_soc_codec *codec)
 {
 	struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
-	struct regmap *regmap;
+	struct regmap *regmap = NULL;
 
-	wm9713->ac97 = snd_soc_new_ac97_codec(codec, WM9713_VENDOR_ID,
-		WM9713_VENDOR_ID_MASK);
-	if (IS_ERR(wm9713->ac97))
-		return PTR_ERR(wm9713->ac97);
-
-	regmap = regmap_init_ac97(wm9713->ac97, &wm9713_regmap_config);
-	if (IS_ERR(regmap)) {
-		snd_soc_free_ac97_codec(wm9713->ac97);
-		return PTR_ERR(regmap);
+	if (wm9713->mfd_pdata) {
+		wm9713->ac97 = wm9713->mfd_pdata->ac97;
+		regmap = wm9713->mfd_pdata->regmap;
+	} else {
+#ifdef CONFIG_SND_SOC_AC97_BUS
+		wm9713->ac97 = snd_soc_new_ac97_codec(codec, WM9713_VENDOR_ID,
+						      WM9713_VENDOR_ID_MASK);
+		if (IS_ERR(wm9713->ac97))
+			return PTR_ERR(wm9713->ac97);
+		regmap = regmap_init_ac97(wm9713->ac97, &wm9713_regmap_config);
+		if (IS_ERR(regmap)) {
+			snd_soc_free_ac97_codec(wm9713->ac97);
+			return PTR_ERR(regmap);
+		}
+#endif
 	}
 
 	snd_soc_codec_init_regmap(codec, regmap);
@@ -1230,8 +1240,12 @@ static int wm9713_soc_remove(struct snd_soc_codec *codec)
 {
 	struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
 
-	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(wm9713->ac97);
+	if (!wm9713->mfd_pdata) {
+		snd_soc_codec_exit_regmap(codec);
+#ifdef CONFIG_SND_SOC_AC97_BUS
+		snd_soc_free_ac97_codec(wm9713->ac97);
+#endif
+	}
 	return 0;
 }
 
@@ -1262,6 +1276,7 @@ static int wm9713_probe(struct platform_device *pdev)
 
 	mutex_init(&wm9713->lock);
 
+	wm9713->mfd_pdata = dev_get_platdata(&pdev->dev);
 	platform_set_drvdata(pdev, wm9713);
 
 	return snd_soc_register_codec(&pdev->dev,
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 08/12] ASoC: wm9712: add ac97 new bus support
  2017-06-19  7:26 ` Robert Jarzmik
  (?)
@ 2017-06-19  7:27   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

Add support for the new ac97 bus model, where devices are automatically
discovered on AC-Links.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 sound/soc/codecs/Kconfig  |  3 ++-
 sound/soc/codecs/wm9712.c | 37 ++++++++++++++++++++++++-------------
 2 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index aebf148d7e4d..f17af3592785 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -206,7 +206,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_WM9081 if I2C
 	select SND_SOC_WM9090 if I2C
 	select SND_SOC_WM9705 if SND_SOC_AC97_BUS
-	select SND_SOC_WM9712 if SND_SOC_AC97_BUS
+	select SND_SOC_WM9712 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
 	select SND_SOC_WM9713 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
         help
           Normally ASoC codec drivers are only built if a machine driver which
@@ -1087,6 +1087,7 @@ config SND_SOC_WM9705
 config SND_SOC_WM9712
 	tristate
 	select REGMAP_AC97
+	select AC97_BUS_COMPAT if AC97_BUS_NEW
 
 config SND_SOC_WM9713
 	tristate
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 1a3e1797994a..9031c58d9bb2 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -12,6 +12,7 @@
 
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/mfd/wm97xx.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/device.h>
@@ -19,6 +20,8 @@
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/ac97_codec.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/compat.h>
 #include <sound/initval.h>
 #include <sound/soc.h>
 #include <sound/tlv.h>
@@ -30,6 +33,7 @@ struct wm9712_priv {
 	struct snd_ac97 *ac97;
 	unsigned int hp_mixer[2];
 	struct mutex lock;
+	struct wm97xx_platform_data *mfd_pdata;
 };
 
 static const struct reg_default wm9712_reg_defaults[] = {
@@ -636,18 +640,23 @@ static int wm9712_soc_probe(struct snd_soc_codec *codec)
 	struct regmap *regmap;
 	int ret;
 
-	wm9712->ac97 = snd_soc_new_ac97_codec(codec, WM9712_VENDOR_ID,
-		WM9712_VENDOR_ID_MASK);
-	if (IS_ERR(wm9712->ac97)) {
-		ret = PTR_ERR(wm9712->ac97);
-		dev_err(codec->dev, "Failed to register AC97 codec: %d\n", ret);
-		return ret;
-	}
-
-	regmap = regmap_init_ac97(wm9712->ac97, &wm9712_regmap_config);
-	if (IS_ERR(regmap)) {
-		ret = PTR_ERR(regmap);
-		goto err_free_ac97_codec;
+	if (wm9712->mfd_pdata) {
+		wm9712->ac97 = wm9712->mfd_pdata->ac97;
+		regmap = wm9712->mfd_pdata->regmap;
+	} else {
+		wm9712->ac97 = snd_soc_new_ac97_codec(codec, WM9712_VENDOR_ID,
+						      WM9712_VENDOR_ID_MASK);
+		if (IS_ERR(wm9712->ac97)) {
+			ret = PTR_ERR(wm9712->ac97);
+			dev_err(codec->dev,
+				"Failed to register AC97 codec: %d\n", ret);
+			return ret;
+		}
+
+		regmap = regmap_init_ac97(wm9712->ac97, &wm9712_regmap_config);
+		if (IS_ERR(regmap)) {
+			ret = PTR_ERR(regmap);
+			goto err_free_ac97_codec;
 	}
 
 	snd_soc_codec_init_regmap(codec, regmap);
@@ -666,7 +675,8 @@ static int wm9712_soc_remove(struct snd_soc_codec *codec)
 	struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
 
 	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(wm9712->ac97);
+	if (!wm9712->mfd_pdata)
+		snd_soc_free_ac97_codec(wm9712->ac97);
 	return 0;
 }
 
@@ -697,6 +707,7 @@ static int wm9712_probe(struct platform_device *pdev)
 
 	mutex_init(&wm9712->lock);
 
+	wm9712->mfd_pdata = dev_get_platdata(&pdev->dev);
 	platform_set_drvdata(pdev, wm9712);
 
 	return snd_soc_register_codec(&pdev->dev,
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 08/12] ASoC: wm9712: add ac97 new bus support
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: alsa-devel, patches, linux-kernel, linux-arm-kernel, linux-input

Add support for the new ac97 bus model, where devices are automatically
discovered on AC-Links.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 sound/soc/codecs/Kconfig  |  3 ++-
 sound/soc/codecs/wm9712.c | 37 ++++++++++++++++++++++++-------------
 2 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index aebf148d7e4d..f17af3592785 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -206,7 +206,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_WM9081 if I2C
 	select SND_SOC_WM9090 if I2C
 	select SND_SOC_WM9705 if SND_SOC_AC97_BUS
-	select SND_SOC_WM9712 if SND_SOC_AC97_BUS
+	select SND_SOC_WM9712 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
 	select SND_SOC_WM9713 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
         help
           Normally ASoC codec drivers are only built if a machine driver which
@@ -1087,6 +1087,7 @@ config SND_SOC_WM9705
 config SND_SOC_WM9712
 	tristate
 	select REGMAP_AC97
+	select AC97_BUS_COMPAT if AC97_BUS_NEW
 
 config SND_SOC_WM9713
 	tristate
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 1a3e1797994a..9031c58d9bb2 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -12,6 +12,7 @@
 
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/mfd/wm97xx.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/device.h>
@@ -19,6 +20,8 @@
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/ac97_codec.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/compat.h>
 #include <sound/initval.h>
 #include <sound/soc.h>
 #include <sound/tlv.h>
@@ -30,6 +33,7 @@ struct wm9712_priv {
 	struct snd_ac97 *ac97;
 	unsigned int hp_mixer[2];
 	struct mutex lock;
+	struct wm97xx_platform_data *mfd_pdata;
 };
 
 static const struct reg_default wm9712_reg_defaults[] = {
@@ -636,18 +640,23 @@ static int wm9712_soc_probe(struct snd_soc_codec *codec)
 	struct regmap *regmap;
 	int ret;
 
-	wm9712->ac97 = snd_soc_new_ac97_codec(codec, WM9712_VENDOR_ID,
-		WM9712_VENDOR_ID_MASK);
-	if (IS_ERR(wm9712->ac97)) {
-		ret = PTR_ERR(wm9712->ac97);
-		dev_err(codec->dev, "Failed to register AC97 codec: %d\n", ret);
-		return ret;
-	}
-
-	regmap = regmap_init_ac97(wm9712->ac97, &wm9712_regmap_config);
-	if (IS_ERR(regmap)) {
-		ret = PTR_ERR(regmap);
-		goto err_free_ac97_codec;
+	if (wm9712->mfd_pdata) {
+		wm9712->ac97 = wm9712->mfd_pdata->ac97;
+		regmap = wm9712->mfd_pdata->regmap;
+	} else {
+		wm9712->ac97 = snd_soc_new_ac97_codec(codec, WM9712_VENDOR_ID,
+						      WM9712_VENDOR_ID_MASK);
+		if (IS_ERR(wm9712->ac97)) {
+			ret = PTR_ERR(wm9712->ac97);
+			dev_err(codec->dev,
+				"Failed to register AC97 codec: %d\n", ret);
+			return ret;
+		}
+
+		regmap = regmap_init_ac97(wm9712->ac97, &wm9712_regmap_config);
+		if (IS_ERR(regmap)) {
+			ret = PTR_ERR(regmap);
+			goto err_free_ac97_codec;
 	}
 
 	snd_soc_codec_init_regmap(codec, regmap);
@@ -666,7 +675,8 @@ static int wm9712_soc_remove(struct snd_soc_codec *codec)
 	struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
 
 	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(wm9712->ac97);
+	if (!wm9712->mfd_pdata)
+		snd_soc_free_ac97_codec(wm9712->ac97);
 	return 0;
 }
 
@@ -697,6 +707,7 @@ static int wm9712_probe(struct platform_device *pdev)
 
 	mutex_init(&wm9712->lock);
 
+	wm9712->mfd_pdata = dev_get_platdata(&pdev->dev);
 	platform_set_drvdata(pdev, wm9712);
 
 	return snd_soc_register_codec(&pdev->dev,
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 08/12] ASoC: wm9712: add ac97 new bus support
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: linux-arm-kernel

Add support for the new ac97 bus model, where devices are automatically
discovered on AC-Links.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 sound/soc/codecs/Kconfig  |  3 ++-
 sound/soc/codecs/wm9712.c | 37 ++++++++++++++++++++++++-------------
 2 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index aebf148d7e4d..f17af3592785 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -206,7 +206,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_WM9081 if I2C
 	select SND_SOC_WM9090 if I2C
 	select SND_SOC_WM9705 if SND_SOC_AC97_BUS
-	select SND_SOC_WM9712 if SND_SOC_AC97_BUS
+	select SND_SOC_WM9712 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
 	select SND_SOC_WM9713 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
         help
           Normally ASoC codec drivers are only built if a machine driver which
@@ -1087,6 +1087,7 @@ config SND_SOC_WM9705
 config SND_SOC_WM9712
 	tristate
 	select REGMAP_AC97
+	select AC97_BUS_COMPAT if AC97_BUS_NEW
 
 config SND_SOC_WM9713
 	tristate
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 1a3e1797994a..9031c58d9bb2 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -12,6 +12,7 @@
 
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/mfd/wm97xx.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/device.h>
@@ -19,6 +20,8 @@
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/ac97_codec.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/compat.h>
 #include <sound/initval.h>
 #include <sound/soc.h>
 #include <sound/tlv.h>
@@ -30,6 +33,7 @@ struct wm9712_priv {
 	struct snd_ac97 *ac97;
 	unsigned int hp_mixer[2];
 	struct mutex lock;
+	struct wm97xx_platform_data *mfd_pdata;
 };
 
 static const struct reg_default wm9712_reg_defaults[] = {
@@ -636,18 +640,23 @@ static int wm9712_soc_probe(struct snd_soc_codec *codec)
 	struct regmap *regmap;
 	int ret;
 
-	wm9712->ac97 = snd_soc_new_ac97_codec(codec, WM9712_VENDOR_ID,
-		WM9712_VENDOR_ID_MASK);
-	if (IS_ERR(wm9712->ac97)) {
-		ret = PTR_ERR(wm9712->ac97);
-		dev_err(codec->dev, "Failed to register AC97 codec: %d\n", ret);
-		return ret;
-	}
-
-	regmap = regmap_init_ac97(wm9712->ac97, &wm9712_regmap_config);
-	if (IS_ERR(regmap)) {
-		ret = PTR_ERR(regmap);
-		goto err_free_ac97_codec;
+	if (wm9712->mfd_pdata) {
+		wm9712->ac97 = wm9712->mfd_pdata->ac97;
+		regmap = wm9712->mfd_pdata->regmap;
+	} else {
+		wm9712->ac97 = snd_soc_new_ac97_codec(codec, WM9712_VENDOR_ID,
+						      WM9712_VENDOR_ID_MASK);
+		if (IS_ERR(wm9712->ac97)) {
+			ret = PTR_ERR(wm9712->ac97);
+			dev_err(codec->dev,
+				"Failed to register AC97 codec: %d\n", ret);
+			return ret;
+		}
+
+		regmap = regmap_init_ac97(wm9712->ac97, &wm9712_regmap_config);
+		if (IS_ERR(regmap)) {
+			ret = PTR_ERR(regmap);
+			goto err_free_ac97_codec;
 	}
 
 	snd_soc_codec_init_regmap(codec, regmap);
@@ -666,7 +675,8 @@ static int wm9712_soc_remove(struct snd_soc_codec *codec)
 	struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
 
 	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(wm9712->ac97);
+	if (!wm9712->mfd_pdata)
+		snd_soc_free_ac97_codec(wm9712->ac97);
 	return 0;
 }
 
@@ -697,6 +707,7 @@ static int wm9712_probe(struct platform_device *pdev)
 
 	mutex_init(&wm9712->lock);
 
+	wm9712->mfd_pdata = dev_get_platdata(&pdev->dev);
 	platform_set_drvdata(pdev, wm9712);
 
 	return snd_soc_register_codec(&pdev->dev,
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 09/12] ASoC: wm9705: add private structure
  2017-06-19  7:26 ` Robert Jarzmik
@ 2017-06-19  7:27   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

Add a private data structure. This is a preparation for a codec which
would need an another data on top of snd_ac97, which will be the case
when an MFD wm97xx device will probe wm9705.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 sound/soc/codecs/wm9705.c | 36 ++++++++++++++++++++++++------------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index f6d5c0f2aea5..08477d040028 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -24,6 +24,10 @@
 #define WM9705_VENDOR_ID 0x574d4c05
 #define WM9705_VENDOR_ID_MASK 0xffffffff
 
+struct wm9705_priv {
+	struct snd_ac97 *ac97;
+};
+
 static const struct reg_default wm9705_reg_defaults[] = {
 	{ 0x02, 0x8000 },
 	{ 0x04, 0x8000 },
@@ -292,10 +296,10 @@ static int wm9705_soc_suspend(struct snd_soc_codec *codec)
 
 static int wm9705_soc_resume(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 	int ret;
 
-	ret = snd_ac97_reset(ac97, true, WM9705_VENDOR_ID,
+	ret = snd_ac97_reset(wm9705->ac97, true, WM9705_VENDOR_ID,
 		WM9705_VENDOR_ID_MASK);
 	if (ret < 0)
 		return ret;
@@ -311,38 +315,38 @@ static int wm9705_soc_resume(struct snd_soc_codec *codec)
 
 static int wm9705_soc_probe(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97;
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 	struct regmap *regmap;
 	int ret;
 
-	ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
-		WM9705_VENDOR_ID_MASK);
-	if (IS_ERR(ac97)) {
+	wm9705->ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
+					      WM9705_VENDOR_ID_MASK);
+	if (IS_ERR(wm9705->ac97)) {
 		dev_err(codec->dev, "Failed to register AC97 codec\n");
-		return PTR_ERR(ac97);
+		return PTR_ERR(wm9705->ac97);
 	}
 
-	regmap = regmap_init_ac97(ac97, &wm9705_regmap_config);
+	regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
 	if (IS_ERR(regmap)) {
 		ret = PTR_ERR(regmap);
 		goto err_free_ac97_codec;
 	}
 
-	snd_soc_codec_set_drvdata(codec, ac97);
+	snd_soc_codec_set_drvdata(codec, wm9705->ac97);
 	snd_soc_codec_init_regmap(codec, regmap);
 
 	return 0;
 err_free_ac97_codec:
-	snd_soc_free_ac97_codec(ac97);
+	snd_soc_free_ac97_codec(wm9705->ac97);
 	return ret;
 }
 
 static int wm9705_soc_remove(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 
 	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(ac97);
+	snd_soc_free_ac97_codec(wm9705->ac97);
 	return 0;
 }
 
@@ -364,6 +368,14 @@ static const struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
 
 static int wm9705_probe(struct platform_device *pdev)
 {
+	struct wm9705_priv *wm9705;
+
+	wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL);
+	if (wm9705 == NULL)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, wm9705);
+
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
 }
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 09/12] ASoC: wm9705: add private structure
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: linux-arm-kernel

Add a private data structure. This is a preparation for a codec which
would need an another data on top of snd_ac97, which will be the case
when an MFD wm97xx device will probe wm9705.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 sound/soc/codecs/wm9705.c | 36 ++++++++++++++++++++++++------------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index f6d5c0f2aea5..08477d040028 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -24,6 +24,10 @@
 #define WM9705_VENDOR_ID 0x574d4c05
 #define WM9705_VENDOR_ID_MASK 0xffffffff
 
+struct wm9705_priv {
+	struct snd_ac97 *ac97;
+};
+
 static const struct reg_default wm9705_reg_defaults[] = {
 	{ 0x02, 0x8000 },
 	{ 0x04, 0x8000 },
@@ -292,10 +296,10 @@ static int wm9705_soc_suspend(struct snd_soc_codec *codec)
 
 static int wm9705_soc_resume(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 	int ret;
 
-	ret = snd_ac97_reset(ac97, true, WM9705_VENDOR_ID,
+	ret = snd_ac97_reset(wm9705->ac97, true, WM9705_VENDOR_ID,
 		WM9705_VENDOR_ID_MASK);
 	if (ret < 0)
 		return ret;
@@ -311,38 +315,38 @@ static int wm9705_soc_resume(struct snd_soc_codec *codec)
 
 static int wm9705_soc_probe(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97;
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 	struct regmap *regmap;
 	int ret;
 
-	ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
-		WM9705_VENDOR_ID_MASK);
-	if (IS_ERR(ac97)) {
+	wm9705->ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
+					      WM9705_VENDOR_ID_MASK);
+	if (IS_ERR(wm9705->ac97)) {
 		dev_err(codec->dev, "Failed to register AC97 codec\n");
-		return PTR_ERR(ac97);
+		return PTR_ERR(wm9705->ac97);
 	}
 
-	regmap = regmap_init_ac97(ac97, &wm9705_regmap_config);
+	regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
 	if (IS_ERR(regmap)) {
 		ret = PTR_ERR(regmap);
 		goto err_free_ac97_codec;
 	}
 
-	snd_soc_codec_set_drvdata(codec, ac97);
+	snd_soc_codec_set_drvdata(codec, wm9705->ac97);
 	snd_soc_codec_init_regmap(codec, regmap);
 
 	return 0;
 err_free_ac97_codec:
-	snd_soc_free_ac97_codec(ac97);
+	snd_soc_free_ac97_codec(wm9705->ac97);
 	return ret;
 }
 
 static int wm9705_soc_remove(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 
 	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(ac97);
+	snd_soc_free_ac97_codec(wm9705->ac97);
 	return 0;
 }
 
@@ -364,6 +368,14 @@ static const struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
 
 static int wm9705_probe(struct platform_device *pdev)
 {
+	struct wm9705_priv *wm9705;
+
+	wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL);
+	if (wm9705 == NULL)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, wm9705);
+
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
 }
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 10/12] ASoC: wm9705: add ac97 new bus support
  2017-06-19  7:26 ` Robert Jarzmik
@ 2017-06-19  7:27   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

Add support for the new ac97 bus model, where devices are automatically
discovered on AC-Links.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 sound/soc/codecs/Kconfig  |  3 ++-
 sound/soc/codecs/wm9705.c | 35 +++++++++++++++++++++++------------
 2 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index f17af3592785..1d69a1c1f896 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -205,7 +205,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_WM8998 if MFD_WM8998
 	select SND_SOC_WM9081 if I2C
 	select SND_SOC_WM9090 if I2C
-	select SND_SOC_WM9705 if SND_SOC_AC97_BUS
+	select SND_SOC_WM9705 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
 	select SND_SOC_WM9712 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
 	select SND_SOC_WM9713 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
         help
@@ -1083,6 +1083,7 @@ config SND_SOC_WM9090
 config SND_SOC_WM9705
 	tristate
 	select REGMAP_AC97
+	select AC97_BUS_COMPAT if AC97_BUS_NEW
 
 config SND_SOC_WM9712
 	tristate
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index 08477d040028..f3378da80eee 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -11,6 +11,7 @@
 
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/mfd/wm97xx.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/device.h>
@@ -18,6 +19,8 @@
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/ac97_codec.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/compat.h>
 #include <sound/initval.h>
 #include <sound/soc.h>
 
@@ -26,6 +29,7 @@
 
 struct wm9705_priv {
 	struct snd_ac97 *ac97;
+	struct wm97xx_platform_data *mfd_pdata;
 };
 
 static const struct reg_default wm9705_reg_defaults[] = {
@@ -319,17 +323,22 @@ static int wm9705_soc_probe(struct snd_soc_codec *codec)
 	struct regmap *regmap;
 	int ret;
 
-	wm9705->ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
-					      WM9705_VENDOR_ID_MASK);
-	if (IS_ERR(wm9705->ac97)) {
-		dev_err(codec->dev, "Failed to register AC97 codec\n");
-		return PTR_ERR(wm9705->ac97);
-	}
-
-	regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
-	if (IS_ERR(regmap)) {
-		ret = PTR_ERR(regmap);
-		goto err_free_ac97_codec;
+	if (wm9705->mfd_pdata) {
+		wm9705->ac97 = wm9705->mfd_pdata->ac97;
+		regmap = wm9705->mfd_pdata->regmap;
+	} else {
+		wm9705->ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
+						      WM9705_VENDOR_ID_MASK);
+		if (IS_ERR(wm9705->ac97)) {
+			dev_err(codec->dev, "Failed to register AC97 codec\n");
+			return PTR_ERR(wm9705->ac97);
+		}
+
+		regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
+		if (IS_ERR(regmap)) {
+			ret = PTR_ERR(regmap);
+			goto err_free_ac97_codec;
+		}
 	}
 
 	snd_soc_codec_set_drvdata(codec, wm9705->ac97);
@@ -346,7 +355,8 @@ static int wm9705_soc_remove(struct snd_soc_codec *codec)
 	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 
 	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(wm9705->ac97);
+	if (!wm9705->mfd_pdata)
+		snd_soc_free_ac97_codec(wm9705->ac97);
 	return 0;
 }
 
@@ -374,6 +384,7 @@ static int wm9705_probe(struct platform_device *pdev)
 	if (wm9705 == NULL)
 		return -ENOMEM;
 
+	wm9705->mfd_pdata = dev_get_platdata(&pdev->dev);
 	platform_set_drvdata(pdev, wm9705);
 
 	return snd_soc_register_codec(&pdev->dev,
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 10/12] ASoC: wm9705: add ac97 new bus support
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: linux-arm-kernel

Add support for the new ac97 bus model, where devices are automatically
discovered on AC-Links.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 sound/soc/codecs/Kconfig  |  3 ++-
 sound/soc/codecs/wm9705.c | 35 +++++++++++++++++++++++------------
 2 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index f17af3592785..1d69a1c1f896 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -205,7 +205,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_WM8998 if MFD_WM8998
 	select SND_SOC_WM9081 if I2C
 	select SND_SOC_WM9090 if I2C
-	select SND_SOC_WM9705 if SND_SOC_AC97_BUS
+	select SND_SOC_WM9705 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
 	select SND_SOC_WM9712 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
 	select SND_SOC_WM9713 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
         help
@@ -1083,6 +1083,7 @@ config SND_SOC_WM9090
 config SND_SOC_WM9705
 	tristate
 	select REGMAP_AC97
+	select AC97_BUS_COMPAT if AC97_BUS_NEW
 
 config SND_SOC_WM9712
 	tristate
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index 08477d040028..f3378da80eee 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -11,6 +11,7 @@
 
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/mfd/wm97xx.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/device.h>
@@ -18,6 +19,8 @@
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/ac97_codec.h>
+#include <sound/ac97/codec.h>
+#include <sound/ac97/compat.h>
 #include <sound/initval.h>
 #include <sound/soc.h>
 
@@ -26,6 +29,7 @@
 
 struct wm9705_priv {
 	struct snd_ac97 *ac97;
+	struct wm97xx_platform_data *mfd_pdata;
 };
 
 static const struct reg_default wm9705_reg_defaults[] = {
@@ -319,17 +323,22 @@ static int wm9705_soc_probe(struct snd_soc_codec *codec)
 	struct regmap *regmap;
 	int ret;
 
-	wm9705->ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
-					      WM9705_VENDOR_ID_MASK);
-	if (IS_ERR(wm9705->ac97)) {
-		dev_err(codec->dev, "Failed to register AC97 codec\n");
-		return PTR_ERR(wm9705->ac97);
-	}
-
-	regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
-	if (IS_ERR(regmap)) {
-		ret = PTR_ERR(regmap);
-		goto err_free_ac97_codec;
+	if (wm9705->mfd_pdata) {
+		wm9705->ac97 = wm9705->mfd_pdata->ac97;
+		regmap = wm9705->mfd_pdata->regmap;
+	} else {
+		wm9705->ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
+						      WM9705_VENDOR_ID_MASK);
+		if (IS_ERR(wm9705->ac97)) {
+			dev_err(codec->dev, "Failed to register AC97 codec\n");
+			return PTR_ERR(wm9705->ac97);
+		}
+
+		regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
+		if (IS_ERR(regmap)) {
+			ret = PTR_ERR(regmap);
+			goto err_free_ac97_codec;
+		}
 	}
 
 	snd_soc_codec_set_drvdata(codec, wm9705->ac97);
@@ -346,7 +355,8 @@ static int wm9705_soc_remove(struct snd_soc_codec *codec)
 	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 
 	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(wm9705->ac97);
+	if (!wm9705->mfd_pdata)
+		snd_soc_free_ac97_codec(wm9705->ac97);
 	return 0;
 }
 
@@ -374,6 +384,7 @@ static int wm9705_probe(struct platform_device *pdev)
 	if (wm9705 == NULL)
 		return -ENOMEM;
 
+	wm9705->mfd_pdata = dev_get_platdata(&pdev->dev);
 	platform_set_drvdata(pdev, wm9705);
 
 	return snd_soc_register_codec(&pdev->dev,
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 11/12] ASoC: pxa: switch to new ac97 bus support
  2017-06-19  7:26 ` Robert Jarzmik
  (?)
@ 2017-06-19  7:27   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel

Switch to the new ac97 bus support in sound/ac97 instead of the legacy
snd_ac97 one.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
Since v1: split into 2 patches, the former being XXX ac97 codec agnostic
---
 sound/arm/Kconfig           |  1 -
 sound/soc/pxa/Kconfig       |  5 ++---
 sound/soc/pxa/pxa2xx-ac97.c | 43 ++++++++++++++++++++-----------------------
 3 files changed, 22 insertions(+), 27 deletions(-)

diff --git a/sound/arm/Kconfig b/sound/arm/Kconfig
index 65171f6657a2..f1f25704fe52 100644
--- a/sound/arm/Kconfig
+++ b/sound/arm/Kconfig
@@ -36,7 +36,6 @@ endif	# SND_ARM
 
 config SND_PXA2XX_LIB
 	tristate
-	select SND_AC97_CODEC if SND_PXA2XX_LIB_AC97
 	select SND_DMAENGINE_PCM
 
 config SND_PXA2XX_LIB_AC97
diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
index 823b5a236d8d..72d652572269 100644
--- a/sound/soc/pxa/Kconfig
+++ b/sound/soc/pxa/Kconfig
@@ -19,13 +19,12 @@ config SND_MMP_SOC
 
 config SND_PXA2XX_AC97
 	tristate
-	select SND_AC97_CODEC
 
 config SND_PXA2XX_SOC_AC97
 	tristate
-	select AC97_BUS
+	select AC97_BUS_NEW
 	select SND_PXA2XX_LIB_AC97
-	select SND_SOC_AC97_BUS
+	select SND_SOC_AC97_BUS_NEW
 
 config SND_PXA2XX_SOC_I2S
 	tristate
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index b07d64ef49ba..c2be9dbe1789 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -17,6 +17,7 @@
 #include <linux/dmaengine.h>
 #include <linux/dma/pxa-dma.h>
 
+#include <sound/ac97/controller.h>
 #include <sound/core.h>
 #include <sound/ac97_codec.h>
 #include <sound/soc.h>
@@ -27,43 +28,35 @@
 #include <mach/regs-ac97.h>
 #include <mach/audio.h>
 
-static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
+static void pxa2xx_ac97_warm_reset(struct ac97_controller *adrv)
 {
 	pxa2xx_ac97_try_warm_reset();
 
 	pxa2xx_ac97_finish_reset();
 }
 
-static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
+static void pxa2xx_ac97_cold_reset(struct ac97_controller *adrv)
 {
 	pxa2xx_ac97_try_cold_reset();
 
 	pxa2xx_ac97_finish_reset();
 }
 
-static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
-					      unsigned short reg)
+static int pxa2xx_ac97_read_actrl(struct ac97_controller *adrv, int slot,
+				  unsigned short reg)
 {
-	int ret;
-
-	ret = pxa2xx_ac97_read(ac97->num, reg);
-	if (ret < 0)
-		return 0;
-	else
-		return (unsigned short)(ret & 0xffff);
+	return pxa2xx_ac97_read(slot, reg);
 }
 
-static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
-				     unsigned short reg, unsigned short val)
+static int pxa2xx_ac97_write_actrl(struct ac97_controller *adrv, int slot,
+				   unsigned short reg, unsigned short val)
 {
-	int ret;
-
-	ret = pxa2xx_ac97_write(ac97->num, reg, val);
+	return pxa2xx_ac97_write(slot, reg, val);
 }
 
-static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_legacy_read,
-	.write	= pxa2xx_ac97_legacy_write,
+static struct ac97_controller_ops pxa2xx_ac97_ops = {
+	.read	= pxa2xx_ac97_read_actrl,
+	.write	= pxa2xx_ac97_write_actrl,
 	.warm_reset	= pxa2xx_ac97_warm_reset,
 	.reset	= pxa2xx_ac97_cold_reset,
 };
@@ -242,6 +235,8 @@ static const struct snd_soc_component_driver pxa_ac97_component = {
 static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 {
 	int ret;
+	struct ac97_controller *ctrl;
+	pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data;
 
 	if (pdev->id != -1) {
 		dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
@@ -254,9 +249,11 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	ret = snd_soc_set_ac97_ops(&pxa2xx_ac97_ops);
-	if (ret != 0)
-		return ret;
+	ctrl = snd_ac97_controller_register(&pxa2xx_ac97_ops, &pdev->dev,
+					    AC97_SLOTS_AVAILABLE_ALL,
+					    pdata->codec_pdata);
+	if (IS_ERR(ctrl))
+		return PTR_ERR(ctrl);
 
 	/* Punt most of the init to the SoC probe; we may need the machine
 	 * driver to do interesting things with the clocking to get us up
@@ -269,7 +266,7 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 static int pxa2xx_ac97_dev_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_component(&pdev->dev);
-	snd_soc_set_ac97_ops(NULL);
+	snd_ac97_controller_unregister(&pdev->dev);
 	pxa2xx_ac97_hw_remove(pdev);
 	return 0;
 }
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 11/12] ASoC: pxa: switch to new ac97 bus support
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: alsa-devel, patches, linux-kernel, linux-arm-kernel, linux-input

Switch to the new ac97 bus support in sound/ac97 instead of the legacy
snd_ac97 one.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
Since v1: split into 2 patches, the former being XXX ac97 codec agnostic
---
 sound/arm/Kconfig           |  1 -
 sound/soc/pxa/Kconfig       |  5 ++---
 sound/soc/pxa/pxa2xx-ac97.c | 43 ++++++++++++++++++++-----------------------
 3 files changed, 22 insertions(+), 27 deletions(-)

diff --git a/sound/arm/Kconfig b/sound/arm/Kconfig
index 65171f6657a2..f1f25704fe52 100644
--- a/sound/arm/Kconfig
+++ b/sound/arm/Kconfig
@@ -36,7 +36,6 @@ endif	# SND_ARM
 
 config SND_PXA2XX_LIB
 	tristate
-	select SND_AC97_CODEC if SND_PXA2XX_LIB_AC97
 	select SND_DMAENGINE_PCM
 
 config SND_PXA2XX_LIB_AC97
diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
index 823b5a236d8d..72d652572269 100644
--- a/sound/soc/pxa/Kconfig
+++ b/sound/soc/pxa/Kconfig
@@ -19,13 +19,12 @@ config SND_MMP_SOC
 
 config SND_PXA2XX_AC97
 	tristate
-	select SND_AC97_CODEC
 
 config SND_PXA2XX_SOC_AC97
 	tristate
-	select AC97_BUS
+	select AC97_BUS_NEW
 	select SND_PXA2XX_LIB_AC97
-	select SND_SOC_AC97_BUS
+	select SND_SOC_AC97_BUS_NEW
 
 config SND_PXA2XX_SOC_I2S
 	tristate
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index b07d64ef49ba..c2be9dbe1789 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -17,6 +17,7 @@
 #include <linux/dmaengine.h>
 #include <linux/dma/pxa-dma.h>
 
+#include <sound/ac97/controller.h>
 #include <sound/core.h>
 #include <sound/ac97_codec.h>
 #include <sound/soc.h>
@@ -27,43 +28,35 @@
 #include <mach/regs-ac97.h>
 #include <mach/audio.h>
 
-static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
+static void pxa2xx_ac97_warm_reset(struct ac97_controller *adrv)
 {
 	pxa2xx_ac97_try_warm_reset();
 
 	pxa2xx_ac97_finish_reset();
 }
 
-static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
+static void pxa2xx_ac97_cold_reset(struct ac97_controller *adrv)
 {
 	pxa2xx_ac97_try_cold_reset();
 
 	pxa2xx_ac97_finish_reset();
 }
 
-static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
-					      unsigned short reg)
+static int pxa2xx_ac97_read_actrl(struct ac97_controller *adrv, int slot,
+				  unsigned short reg)
 {
-	int ret;
-
-	ret = pxa2xx_ac97_read(ac97->num, reg);
-	if (ret < 0)
-		return 0;
-	else
-		return (unsigned short)(ret & 0xffff);
+	return pxa2xx_ac97_read(slot, reg);
 }
 
-static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
-				     unsigned short reg, unsigned short val)
+static int pxa2xx_ac97_write_actrl(struct ac97_controller *adrv, int slot,
+				   unsigned short reg, unsigned short val)
 {
-	int ret;
-
-	ret = pxa2xx_ac97_write(ac97->num, reg, val);
+	return pxa2xx_ac97_write(slot, reg, val);
 }
 
-static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_legacy_read,
-	.write	= pxa2xx_ac97_legacy_write,
+static struct ac97_controller_ops pxa2xx_ac97_ops = {
+	.read	= pxa2xx_ac97_read_actrl,
+	.write	= pxa2xx_ac97_write_actrl,
 	.warm_reset	= pxa2xx_ac97_warm_reset,
 	.reset	= pxa2xx_ac97_cold_reset,
 };
@@ -242,6 +235,8 @@ static const struct snd_soc_component_driver pxa_ac97_component = {
 static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 {
 	int ret;
+	struct ac97_controller *ctrl;
+	pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data;
 
 	if (pdev->id != -1) {
 		dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
@@ -254,9 +249,11 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	ret = snd_soc_set_ac97_ops(&pxa2xx_ac97_ops);
-	if (ret != 0)
-		return ret;
+	ctrl = snd_ac97_controller_register(&pxa2xx_ac97_ops, &pdev->dev,
+					    AC97_SLOTS_AVAILABLE_ALL,
+					    pdata->codec_pdata);
+	if (IS_ERR(ctrl))
+		return PTR_ERR(ctrl);
 
 	/* Punt most of the init to the SoC probe; we may need the machine
 	 * driver to do interesting things with the clocking to get us up
@@ -269,7 +266,7 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 static int pxa2xx_ac97_dev_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_component(&pdev->dev);
-	snd_soc_set_ac97_ops(NULL);
+	snd_ac97_controller_unregister(&pdev->dev);
 	pxa2xx_ac97_hw_remove(pdev);
 	return 0;
 }
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 11/12] ASoC: pxa: switch to new ac97 bus support
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: linux-arm-kernel

Switch to the new ac97 bus support in sound/ac97 instead of the legacy
snd_ac97 one.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
Since v1: split into 2 patches, the former being XXX ac97 codec agnostic
---
 sound/arm/Kconfig           |  1 -
 sound/soc/pxa/Kconfig       |  5 ++---
 sound/soc/pxa/pxa2xx-ac97.c | 43 ++++++++++++++++++++-----------------------
 3 files changed, 22 insertions(+), 27 deletions(-)

diff --git a/sound/arm/Kconfig b/sound/arm/Kconfig
index 65171f6657a2..f1f25704fe52 100644
--- a/sound/arm/Kconfig
+++ b/sound/arm/Kconfig
@@ -36,7 +36,6 @@ endif	# SND_ARM
 
 config SND_PXA2XX_LIB
 	tristate
-	select SND_AC97_CODEC if SND_PXA2XX_LIB_AC97
 	select SND_DMAENGINE_PCM
 
 config SND_PXA2XX_LIB_AC97
diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
index 823b5a236d8d..72d652572269 100644
--- a/sound/soc/pxa/Kconfig
+++ b/sound/soc/pxa/Kconfig
@@ -19,13 +19,12 @@ config SND_MMP_SOC
 
 config SND_PXA2XX_AC97
 	tristate
-	select SND_AC97_CODEC
 
 config SND_PXA2XX_SOC_AC97
 	tristate
-	select AC97_BUS
+	select AC97_BUS_NEW
 	select SND_PXA2XX_LIB_AC97
-	select SND_SOC_AC97_BUS
+	select SND_SOC_AC97_BUS_NEW
 
 config SND_PXA2XX_SOC_I2S
 	tristate
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index b07d64ef49ba..c2be9dbe1789 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -17,6 +17,7 @@
 #include <linux/dmaengine.h>
 #include <linux/dma/pxa-dma.h>
 
+#include <sound/ac97/controller.h>
 #include <sound/core.h>
 #include <sound/ac97_codec.h>
 #include <sound/soc.h>
@@ -27,43 +28,35 @@
 #include <mach/regs-ac97.h>
 #include <mach/audio.h>
 
-static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
+static void pxa2xx_ac97_warm_reset(struct ac97_controller *adrv)
 {
 	pxa2xx_ac97_try_warm_reset();
 
 	pxa2xx_ac97_finish_reset();
 }
 
-static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
+static void pxa2xx_ac97_cold_reset(struct ac97_controller *adrv)
 {
 	pxa2xx_ac97_try_cold_reset();
 
 	pxa2xx_ac97_finish_reset();
 }
 
-static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
-					      unsigned short reg)
+static int pxa2xx_ac97_read_actrl(struct ac97_controller *adrv, int slot,
+				  unsigned short reg)
 {
-	int ret;
-
-	ret = pxa2xx_ac97_read(ac97->num, reg);
-	if (ret < 0)
-		return 0;
-	else
-		return (unsigned short)(ret & 0xffff);
+	return pxa2xx_ac97_read(slot, reg);
 }
 
-static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
-				     unsigned short reg, unsigned short val)
+static int pxa2xx_ac97_write_actrl(struct ac97_controller *adrv, int slot,
+				   unsigned short reg, unsigned short val)
 {
-	int ret;
-
-	ret = pxa2xx_ac97_write(ac97->num, reg, val);
+	return pxa2xx_ac97_write(slot, reg, val);
 }
 
-static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_legacy_read,
-	.write	= pxa2xx_ac97_legacy_write,
+static struct ac97_controller_ops pxa2xx_ac97_ops = {
+	.read	= pxa2xx_ac97_read_actrl,
+	.write	= pxa2xx_ac97_write_actrl,
 	.warm_reset	= pxa2xx_ac97_warm_reset,
 	.reset	= pxa2xx_ac97_cold_reset,
 };
@@ -242,6 +235,8 @@ static const struct snd_soc_component_driver pxa_ac97_component = {
 static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 {
 	int ret;
+	struct ac97_controller *ctrl;
+	pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data;
 
 	if (pdev->id != -1) {
 		dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
@@ -254,9 +249,11 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	ret = snd_soc_set_ac97_ops(&pxa2xx_ac97_ops);
-	if (ret != 0)
-		return ret;
+	ctrl = snd_ac97_controller_register(&pxa2xx_ac97_ops, &pdev->dev,
+					    AC97_SLOTS_AVAILABLE_ALL,
+					    pdata->codec_pdata);
+	if (IS_ERR(ctrl))
+		return PTR_ERR(ctrl);
 
 	/* Punt most of the init to the SoC probe; we may need the machine
 	 * driver to do interesting things with the clocking to get us up
@@ -269,7 +266,7 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 static int pxa2xx_ac97_dev_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_component(&pdev->dev);
-	snd_soc_set_ac97_ops(NULL);
+	snd_ac97_controller_unregister(&pdev->dev);
 	pxa2xx_ac97_hw_remove(pdev);
 	return 0;
 }
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
  2017-06-19  7:26 ` Robert Jarzmik
  (?)
@ 2017-06-19  7:27   ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel,
	Takashi Iwai, stable

From: Takashi Iwai <tiwai@suse.de>

soc_cleanup_card_resources() call snd_card_free() at the last of its
procedure.  This turned out to lead to a use-after-free.
PCM runtimes have been already removed via soc_remove_pcm_runtimes(),
while it's dereferenced later in soc_pcm_free() called via
snd_card_free().

The fix is simple: just move the snd_card_free() call to the beginning
of the whole procedure.  This also gives another benefit: it
guarantees that all operations have been shut down before actually
releasing the resources, which was racy until now.

Reported-and-tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/soc/soc-core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 2722bb0c5573..98d60f471c5d 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2286,6 +2286,9 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
 	list_for_each_entry(rtd, &card->rtd_list, list)
 		flush_delayed_work(&rtd->delayed_work);
 
+	/* free the ALSA card at first; this syncs with pending operations */
+	snd_card_free(card->snd_card);
+
 	/* remove and free each DAI */
 	soc_remove_dai_links(card);
 	soc_remove_pcm_runtimes(card);
@@ -2300,9 +2303,7 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
 	if (card->remove)
 		card->remove(card);
 
-	snd_card_free(card->snd_card);
 	return 0;
-
 }
 
 /* removes a socdev */
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: Dmitry Torokhov, Lee Jones, Jaroslav Kysela, Takashi Iwai,
	Daniel Mack, Haojian Zhuang, Robert Jarzmik, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax
  Cc: linux-kernel, linux-input, patches, alsa-devel, linux-arm-kernel,
	Takashi Iwai, stable

From: Takashi Iwai <tiwai@suse.de>

soc_cleanup_card_resources() call snd_card_free() at the last of its
procedure.  This turned out to lead to a use-after-free.
PCM runtimes have been already removed via soc_remove_pcm_runtimes(),
while it's dereferenced later in soc_pcm_free() called via
snd_card_free().

The fix is simple: just move the snd_card_free() call to the beginning
of the whole procedure.  This also gives another benefit: it
guarantees that all operations have been shut down before actually
releasing the resources, which was racy until now.

Reported-and-tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/soc/soc-core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 2722bb0c5573..98d60f471c5d 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2286,6 +2286,9 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
 	list_for_each_entry(rtd, &card->rtd_list, list)
 		flush_delayed_work(&rtd->delayed_work);
 
+	/* free the ALSA card at first; this syncs with pending operations */
+	snd_card_free(card->snd_card);
+
 	/* remove and free each DAI */
 	soc_remove_dai_links(card);
 	soc_remove_pcm_runtimes(card);
@@ -2300,9 +2303,7 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
 	if (card->remove)
 		card->remove(card);
 
-	snd_card_free(card->snd_card);
 	return 0;
-
 }
 
 /* removes a socdev */
-- 
2.1.4


^ permalink raw reply related	[flat|nested] 60+ messages in thread
* [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-19  7:27   ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19  7:27 UTC (permalink / raw)
  To: linux-arm-kernel

From: Takashi Iwai <tiwai@suse.de>

soc_cleanup_card_resources() call snd_card_free() at the last of its
procedure.  This turned out to lead to a use-after-free.
PCM runtimes have been already removed via soc_remove_pcm_runtimes(),
while it's dereferenced later in soc_pcm_free() called via
snd_card_free().

The fix is simple: just move the snd_card_free() call to the beginning
of the whole procedure.  This also gives another benefit: it
guarantees that all operations have been shut down before actually
releasing the resources, which was racy until now.

Reported-and-tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/soc/soc-core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 2722bb0c5573..98d60f471c5d 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2286,6 +2286,9 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
 	list_for_each_entry(rtd, &card->rtd_list, list)
 		flush_delayed_work(&rtd->delayed_work);
 
+	/* free the ALSA card at first; this syncs with pending operations */
+	snd_card_free(card->snd_card);
+
 	/* remove and free each DAI */
 	soc_remove_dai_links(card);
 	soc_remove_pcm_runtimes(card);
@@ -2300,9 +2303,7 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
 	if (card->remove)
 		card->remove(card);
 
-	snd_card_free(card->snd_card);
 	return 0;
-
 }
 
 /* removes a socdev */
-- 
2.1.4

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* Re: [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
  2017-06-19  7:27   ` Robert Jarzmik
  (?)
@ 2017-06-19  9:25     ` Takashi Iwai
  -1 siblings, 0 replies; 60+ messages in thread
From: Takashi Iwai @ 2017-06-19  9:25 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: Dmitry Torokhov, Haojian Zhuang, Liam Girdwood, Mark Brown,
	Lee Jones, Lars-Peter Clausen, Charles Keepax, Jaroslav Kysela,
	Daniel Mack, alsa-devel, linux-arm-kernel, patches, linux-input,
	linux-kernel, stable

On Mon, 19 Jun 2017 09:27:09 +0200,
Robert Jarzmik wrote:
> 
> From: Takashi Iwai <tiwai@suse.de>
> 
> soc_cleanup_card_resources() call snd_card_free() at the last of its
> procedure.  This turned out to lead to a use-after-free.
> PCM runtimes have been already removed via soc_remove_pcm_runtimes(),
> while it's dereferenced later in soc_pcm_free() called via
> snd_card_free().
> 
> The fix is simple: just move the snd_card_free() call to the beginning
> of the whole procedure.  This also gives another benefit: it
> guarantees that all operations have been shut down before actually
> releasing the resources, which was racy until now.
> 
> Reported-and-tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Takashi Iwai <tiwai@suse.de>

This patch must be superfluous :)


Takashi


> ---
>  sound/soc/soc-core.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
> index 2722bb0c5573..98d60f471c5d 100644
> --- a/sound/soc/soc-core.c
> +++ b/sound/soc/soc-core.c
> @@ -2286,6 +2286,9 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
>  	list_for_each_entry(rtd, &card->rtd_list, list)
>  		flush_delayed_work(&rtd->delayed_work);
>  
> +	/* free the ALSA card at first; this syncs with pending operations */
> +	snd_card_free(card->snd_card);
> +
>  	/* remove and free each DAI */
>  	soc_remove_dai_links(card);
>  	soc_remove_pcm_runtimes(card);
> @@ -2300,9 +2303,7 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
>  	if (card->remove)
>  		card->remove(card);
>  
> -	snd_card_free(card->snd_card);
>  	return 0;
> -
>  }
>  
>  /* removes a socdev */
> -- 
> 2.1.4
> 
> 

^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-19  9:25     ` Takashi Iwai
  0 siblings, 0 replies; 60+ messages in thread
From: Takashi Iwai @ 2017-06-19  9:25 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: Dmitry Torokhov, Haojian Zhuang, Liam Girdwood, Mark Brown,
	Lee Jones, Lars-Peter Clausen, Charles Keepax, Jaroslav Kysela,
	Daniel Mack, alsa-devel, linux-arm-kernel, patches, linux-input,
	linux-kernel, stable

On Mon, 19 Jun 2017 09:27:09 +0200,
Robert Jarzmik wrote:
> 
> From: Takashi Iwai <tiwai@suse.de>
> 
> soc_cleanup_card_resources() call snd_card_free() at the last of its
> procedure.  This turned out to lead to a use-after-free.
> PCM runtimes have been already removed via soc_remove_pcm_runtimes(),
> while it's dereferenced later in soc_pcm_free() called via
> snd_card_free().
> 
> The fix is simple: just move the snd_card_free() call to the beginning
> of the whole procedure.  This also gives another benefit: it
> guarantees that all operations have been shut down before actually
> releasing the resources, which was racy until now.
> 
> Reported-and-tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Takashi Iwai <tiwai@suse.de>

This patch must be superfluous :)


Takashi


> ---
>  sound/soc/soc-core.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
> index 2722bb0c5573..98d60f471c5d 100644
> --- a/sound/soc/soc-core.c
> +++ b/sound/soc/soc-core.c
> @@ -2286,6 +2286,9 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
>  	list_for_each_entry(rtd, &card->rtd_list, list)
>  		flush_delayed_work(&rtd->delayed_work);
>  
> +	/* free the ALSA card at first; this syncs with pending operations */
> +	snd_card_free(card->snd_card);
> +
>  	/* remove and free each DAI */
>  	soc_remove_dai_links(card);
>  	soc_remove_pcm_runtimes(card);
> @@ -2300,9 +2303,7 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
>  	if (card->remove)
>  		card->remove(card);
>  
> -	snd_card_free(card->snd_card);
>  	return 0;
> -
>  }
>  
>  /* removes a socdev */
> -- 
> 2.1.4
> 
> 

^ permalink raw reply	[flat|nested] 60+ messages in thread
* [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-19  9:25     ` Takashi Iwai
  0 siblings, 0 replies; 60+ messages in thread
From: Takashi Iwai @ 2017-06-19  9:25 UTC (permalink / raw)
  To: linux-arm-kernel

On Mon, 19 Jun 2017 09:27:09 +0200,
Robert Jarzmik wrote:
> 
> From: Takashi Iwai <tiwai@suse.de>
> 
> soc_cleanup_card_resources() call snd_card_free() at the last of its
> procedure.  This turned out to lead to a use-after-free.
> PCM runtimes have been already removed via soc_remove_pcm_runtimes(),
> while it's dereferenced later in soc_pcm_free() called via
> snd_card_free().
> 
> The fix is simple: just move the snd_card_free() call to the beginning
> of the whole procedure.  This also gives another benefit: it
> guarantees that all operations have been shut down before actually
> releasing the resources, which was racy until now.
> 
> Reported-and-tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Takashi Iwai <tiwai@suse.de>

This patch must be superfluous :)


Takashi


> ---
>  sound/soc/soc-core.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
> index 2722bb0c5573..98d60f471c5d 100644
> --- a/sound/soc/soc-core.c
> +++ b/sound/soc/soc-core.c
> @@ -2286,6 +2286,9 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
>  	list_for_each_entry(rtd, &card->rtd_list, list)
>  		flush_delayed_work(&rtd->delayed_work);
>  
> +	/* free the ALSA card at first; this syncs with pending operations */
> +	snd_card_free(card->snd_card);
> +
>  	/* remove and free each DAI */
>  	soc_remove_dai_links(card);
>  	soc_remove_pcm_runtimes(card);
> @@ -2300,9 +2303,7 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card)
>  	if (card->remove)
>  		card->remove(card);
>  
> -	snd_card_free(card->snd_card);
>  	return 0;
> -
>  }
>  
>  /* removes a socdev */
> -- 
> 2.1.4
> 
> 

^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
  2017-06-19  9:25     ` Takashi Iwai
  (?)
@ 2017-06-19 11:57       ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19 11:57 UTC (permalink / raw)
  To: Takashi Iwai
  Cc: Dmitry Torokhov, Haojian Zhuang, Liam Girdwood, Mark Brown,
	Lee Jones, Lars-Peter Clausen, Charles Keepax, Jaroslav Kysela,
	Daniel Mack, alsa-devel, linux-arm-kernel, patches, linux-input,
	linux-kernel, stable

Takashi Iwai <tiwai@suse.de> writes:

> On Mon, 19 Jun 2017 09:27:09 +0200,
> Robert Jarzmik wrote:
>> 
>> From: Takashi Iwai <tiwai@suse.de>
>> 
>> soc_cleanup_card_resources() call snd_card_free() at the last of its
>> procedure.  This turned out to lead to a use-after-free.
>> PCM runtimes have been already removed via soc_remove_pcm_runtimes(),
>> while it's dereferenced later in soc_pcm_free() called via
>> snd_card_free().
>> 
>> The fix is simple: just move the snd_card_free() call to the beginning
>> of the whole procedure.  This also gives another benefit: it
>> guarantees that all operations have been shut down before actually
>> releasing the resources, which was racy until now.
>> 
>> Reported-and-tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
>> Cc: <stable@vger.kernel.org>
>> Signed-off-by: Takashi Iwai <tiwai@suse.de>
>
> This patch must be superfluous :)
Haha :)

My serie shifted by one, so the very first of the serie is therefore missing,
formerly "ALSA: ac97: split out the generic ac97 registers" in
https://patchwork.kernel.org/patch/9398143/, and the shift triggered the
inclusion of the last patch of my tree, ie. yours :)

Cheers.

--
Robert

^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-19 11:57       ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19 11:57 UTC (permalink / raw)
  To: Takashi Iwai
  Cc: Dmitry Torokhov, Haojian Zhuang, Liam Girdwood, Mark Brown,
	Lee Jones, Lars-Peter Clausen, Charles Keepax, Jaroslav Kysela,
	Daniel Mack, alsa-devel, linux-arm-kernel, patches, linux-input,
	linux-kernel, stable

Takashi Iwai <tiwai@suse.de> writes:

> On Mon, 19 Jun 2017 09:27:09 +0200,
> Robert Jarzmik wrote:
>> 
>> From: Takashi Iwai <tiwai@suse.de>
>> 
>> soc_cleanup_card_resources() call snd_card_free() at the last of its
>> procedure.  This turned out to lead to a use-after-free.
>> PCM runtimes have been already removed via soc_remove_pcm_runtimes(),
>> while it's dereferenced later in soc_pcm_free() called via
>> snd_card_free().
>> 
>> The fix is simple: just move the snd_card_free() call to the beginning
>> of the whole procedure.  This also gives another benefit: it
>> guarantees that all operations have been shut down before actually
>> releasing the resources, which was racy until now.
>> 
>> Reported-and-tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
>> Cc: <stable@vger.kernel.org>
>> Signed-off-by: Takashi Iwai <tiwai@suse.de>
>
> This patch must be superfluous :)
Haha :)

My serie shifted by one, so the very first of the serie is therefore missing,
formerly "ALSA: ac97: split out the generic ac97 registers" in
https://patchwork.kernel.org/patch/9398143/, and the shift triggered the
inclusion of the last patch of my tree, ie. yours :)

Cheers.

^ permalink raw reply	[flat|nested] 60+ messages in thread
* [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-19 11:57       ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-19 11:57 UTC (permalink / raw)
  To: linux-arm-kernel

Takashi Iwai <tiwai@suse.de> writes:

> On Mon, 19 Jun 2017 09:27:09 +0200,
> Robert Jarzmik wrote:
>> 
>> From: Takashi Iwai <tiwai@suse.de>
>> 
>> soc_cleanup_card_resources() call snd_card_free() at the last of its
>> procedure.  This turned out to lead to a use-after-free.
>> PCM runtimes have been already removed via soc_remove_pcm_runtimes(),
>> while it's dereferenced later in soc_pcm_free() called via
>> snd_card_free().
>> 
>> The fix is simple: just move the snd_card_free() call to the beginning
>> of the whole procedure.  This also gives another benefit: it
>> guarantees that all operations have been shut down before actually
>> releasing the resources, which was racy until now.
>> 
>> Reported-and-tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
>> Cc: <stable@vger.kernel.org>
>> Signed-off-by: Takashi Iwai <tiwai@suse.de>
>
> This patch must be superfluous :)
Haha :)

My serie shifted by one, so the very first of the serie is therefore missing,
formerly "ALSA: ac97: split out the generic ac97 registers" in
https://patchwork.kernel.org/patch/9398143/, and the shift triggered the
inclusion of the last patch of my tree, ie. yours :)

Cheers.

--
Robert

^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [PATCH v2 04/12] Input: wm97xx: split out touchscreen registering
  2017-06-19  7:27   ` Robert Jarzmik
@ 2017-06-20  2:43     ` Dmitry Torokhov
  -1 siblings, 0 replies; 60+ messages in thread
From: Dmitry Torokhov @ 2017-06-20  2:43 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: Lee Jones, Jaroslav Kysela, Takashi Iwai, Daniel Mack,
	Haojian Zhuang, Liam Girdwood, Mark Brown, Lars-Peter Clausen,
	Charles Keepax, linux-kernel, linux-input, patches, alsa-devel,
	linux-arm-kernel

On Mon, Jun 19, 2017 at 09:27:01AM +0200, Robert Jarzmik wrote:
> wm97xx-core does several things in it initialization :
>  - touchscreen input device setup
>  - battery device creation
> 
> As the wm97xx is actually a multi-function device handling an audio
> codec, a touchscreen, a gpio block and an ADC, reshape the probing to
> isolate what is truly input/touchscreen specific from the remaining
> part.
> 
> This is only code shuffling, there is no functional change.
> 
> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Please feel free to merge with the rest of AC97 patches.

> ---
> Since v1:
>  - took into account Charles's comment
> ---
>  drivers/input/touchscreen/wm97xx-core.c | 196 +++++++++++++++++++-------------
>  1 file changed, 115 insertions(+), 81 deletions(-)
> 
> diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
> index c9d1c91e1887..39869ffdc4fa 100644
> --- a/drivers/input/touchscreen/wm97xx-core.c
> +++ b/drivers/input/touchscreen/wm97xx-core.c
> @@ -581,27 +581,85 @@ static void wm97xx_ts_input_close(struct input_dev *idev)
>  		wm->codec->acc_enable(wm, 0);
>  }
>  
> -static int wm97xx_probe(struct device *dev)
> +static int wm97xx_register_touch(struct wm97xx *wm)
>  {
> -	struct wm97xx *wm;
> -	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
> -	int ret = 0, id = 0;
> +	struct wm97xx_pdata *pdata = dev_get_platdata(wm->dev);
> +	int ret;
>  
> -	wm = kzalloc(sizeof(struct wm97xx), GFP_KERNEL);
> -	if (!wm)
> +	wm->input_dev = devm_input_allocate_device(wm->dev);
> +	if (wm->input_dev == NULL)
>  		return -ENOMEM;
> -	mutex_init(&wm->codec_mutex);
>  
> -	wm->dev = dev;
> -	dev_set_drvdata(dev, wm);
> -	wm->ac97 = to_ac97_t(dev);
> +	/* set up touch configuration */
> +	wm->input_dev->name = "wm97xx touchscreen";
> +	wm->input_dev->phys = "wm97xx";
> +	wm->input_dev->open = wm97xx_ts_input_open;
> +	wm->input_dev->close = wm97xx_ts_input_close;
> +
> +	__set_bit(EV_ABS, wm->input_dev->evbit);
> +	__set_bit(EV_KEY, wm->input_dev->evbit);
> +	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
> +
> +	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
> +			     abs_x[2], 0);
> +	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
> +			     abs_y[2], 0);
> +	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
> +			     abs_p[2], 0);
> +
> +	input_set_drvdata(wm->input_dev, wm);
> +	wm->input_dev->dev.parent = wm->dev;
> +
> +	ret = input_register_device(wm->input_dev);
> +	if (ret)
> +		return ret;
> +
> +	/*
> +	 * register our extended touch device (for machine specific
> +	 * extensions)
> +	 */
> +	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
> +	if (!wm->touch_dev) {
> +		ret = -ENOMEM;
> +		goto touch_err;
> +	}
> +	platform_set_drvdata(wm->touch_dev, wm);
> +	wm->touch_dev->dev.parent = wm->dev;
> +	wm->touch_dev->dev.platform_data = pdata;
> +	ret = platform_device_add(wm->touch_dev);
> +	if (ret < 0)
> +		goto touch_reg_err;
> +
> +	return 0;
> +touch_reg_err:
> +	platform_device_put(wm->touch_dev);
> +touch_err:
> +	input_unregister_device(wm->input_dev);
> +	wm->input_dev = NULL;
> +
> +	return ret;
> +}
> +
> +static void wm97xx_unregister_touch(struct wm97xx *wm)
> +{
> +	platform_device_unregister(wm->touch_dev);
> +	input_unregister_device(wm->input_dev);
> +	wm->input_dev = NULL;
> +}
> +
> +static int _wm97xx_probe(struct wm97xx *wm)
> +{
> +	int id = 0;
> +
> +	mutex_init(&wm->codec_mutex);
> +	dev_set_drvdata(wm->dev, wm);
>  
>  	/* check that we have a supported codec */
>  	id = wm97xx_reg_read(wm, AC97_VENDOR_ID1);
>  	if (id != WM97XX_ID1) {
> -		dev_err(dev, "Device with vendor %04x is not a wm97xx\n", id);
> -		ret = -ENODEV;
> -		goto alloc_err;
> +		dev_err(wm->dev,
> +			"Device with vendor %04x is not a wm97xx\n", id);
> +		return -ENODEV;
>  	}
>  
>  	wm->id = wm97xx_reg_read(wm, AC97_VENDOR_ID2);
> @@ -629,8 +687,7 @@ static int wm97xx_probe(struct device *dev)
>  	default:
>  		dev_err(wm->dev, "Support for wm97%02x not compiled in.\n",
>  			wm->id & 0xff);
> -		ret = -ENODEV;
> -		goto alloc_err;
> +		return -ENODEV;
>  	}
>  
>  	/* set up physical characteristics */
> @@ -644,79 +701,58 @@ static int wm97xx_probe(struct device *dev)
>  	wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
>  	wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
>  
> -	wm->input_dev = input_allocate_device();
> -	if (wm->input_dev == NULL) {
> -		ret = -ENOMEM;
> -		goto alloc_err;
> -	}
> -
> -	/* set up touch configuration */
> -	wm->input_dev->name = "wm97xx touchscreen";
> -	wm->input_dev->phys = "wm97xx";
> -	wm->input_dev->open = wm97xx_ts_input_open;
> -	wm->input_dev->close = wm97xx_ts_input_close;
> -
> -	__set_bit(EV_ABS, wm->input_dev->evbit);
> -	__set_bit(EV_KEY, wm->input_dev->evbit);
> -	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
> -
> -	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
> -			     abs_x[2], 0);
> -	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
> -			     abs_y[2], 0);
> -	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
> -			     abs_p[2], 0);
> +	return wm97xx_register_touch(wm);
> +}
>  
> -	input_set_drvdata(wm->input_dev, wm);
> -	wm->input_dev->dev.parent = dev;
> +static void wm97xx_remove_battery(struct wm97xx *wm)
> +{
> +	platform_device_unregister(wm->battery_dev);
> +}
>  
> -	ret = input_register_device(wm->input_dev);
> -	if (ret < 0)
> -		goto dev_alloc_err;
> +static int wm97xx_add_battery(struct wm97xx *wm,
> +			      struct wm97xx_batt_pdata *pdata)
> +{
> +	int ret;
>  
> -	/* register our battery device */
>  	wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
> -	if (!wm->battery_dev) {
> -		ret = -ENOMEM;
> -		goto batt_err;
> -	}
> +	if (!wm->battery_dev)
> +		return -ENOMEM;
> +
>  	platform_set_drvdata(wm->battery_dev, wm);
> -	wm->battery_dev->dev.parent = dev;
> -	wm->battery_dev->dev.platform_data = pdata ? pdata->batt_pdata : NULL;
> +	wm->battery_dev->dev.parent = wm->dev;
> +	wm->battery_dev->dev.platform_data = pdata;
>  	ret = platform_device_add(wm->battery_dev);
> -	if (ret < 0)
> -		goto batt_reg_err;
> +	if (ret)
> +		platform_device_put(wm->battery_dev);
>  
> -	/* register our extended touch device (for machine specific
> -	 * extensions) */
> -	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
> -	if (!wm->touch_dev) {
> -		ret = -ENOMEM;
> -		goto touch_err;
> -	}
> -	platform_set_drvdata(wm->touch_dev, wm);
> -	wm->touch_dev->dev.parent = dev;
> -	wm->touch_dev->dev.platform_data = pdata;
> -	ret = platform_device_add(wm->touch_dev);
> +	return ret;
> +}
> +
> +static int wm97xx_probe(struct device *dev)
> +{
> +	struct wm97xx *wm;
> +	int ret;
> +	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
> +
> +	wm = devm_kzalloc(dev, sizeof(struct wm97xx), GFP_KERNEL);
> +	if (!wm)
> +		return -ENOMEM;
> +
> +	wm->dev = dev;
> +	wm->ac97 = to_ac97_t(dev);
> +
> +	ret =  _wm97xx_probe(wm);
> +	if (ret)
> +		return ret;
> +
> +	ret = wm97xx_add_battery(wm, pdata ? pdata->batt_pdata : NULL);
>  	if (ret < 0)
> -		goto touch_reg_err;
> +		goto batt_err;
>  
>  	return ret;
>  
> - touch_reg_err:
> -	platform_device_put(wm->touch_dev);
> - touch_err:
> -	platform_device_del(wm->battery_dev);
> - batt_reg_err:
> -	platform_device_put(wm->battery_dev);
> - batt_err:
> -	input_unregister_device(wm->input_dev);
> -	wm->input_dev = NULL;
> - dev_alloc_err:
> -	input_free_device(wm->input_dev);
> - alloc_err:
> -	kfree(wm);
> -
> +batt_err:
> +	wm97xx_unregister_touch(wm);
>  	return ret;
>  }
>  
> @@ -724,10 +760,8 @@ static int wm97xx_remove(struct device *dev)
>  {
>  	struct wm97xx *wm = dev_get_drvdata(dev);
>  
> -	platform_device_unregister(wm->battery_dev);
> -	platform_device_unregister(wm->touch_dev);
> -	input_unregister_device(wm->input_dev);
> -	kfree(wm);
> +	wm97xx_remove_battery(wm);
> +	wm97xx_unregister_touch(wm);
>  
>  	return 0;
>  }
> -- 
> 2.1.4
> 

-- 
Dmitry

^ permalink raw reply	[flat|nested] 60+ messages in thread
* [PATCH v2 04/12] Input: wm97xx: split out touchscreen registering
@ 2017-06-20  2:43     ` Dmitry Torokhov
  0 siblings, 0 replies; 60+ messages in thread
From: Dmitry Torokhov @ 2017-06-20  2:43 UTC (permalink / raw)
  To: linux-arm-kernel

On Mon, Jun 19, 2017 at 09:27:01AM +0200, Robert Jarzmik wrote:
> wm97xx-core does several things in it initialization :
>  - touchscreen input device setup
>  - battery device creation
> 
> As the wm97xx is actually a multi-function device handling an audio
> codec, a touchscreen, a gpio block and an ADC, reshape the probing to
> isolate what is truly input/touchscreen specific from the remaining
> part.
> 
> This is only code shuffling, there is no functional change.
> 
> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Please feel free to merge with the rest of AC97 patches.

> ---
> Since v1:
>  - took into account Charles's comment
> ---
>  drivers/input/touchscreen/wm97xx-core.c | 196 +++++++++++++++++++-------------
>  1 file changed, 115 insertions(+), 81 deletions(-)
> 
> diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
> index c9d1c91e1887..39869ffdc4fa 100644
> --- a/drivers/input/touchscreen/wm97xx-core.c
> +++ b/drivers/input/touchscreen/wm97xx-core.c
> @@ -581,27 +581,85 @@ static void wm97xx_ts_input_close(struct input_dev *idev)
>  		wm->codec->acc_enable(wm, 0);
>  }
>  
> -static int wm97xx_probe(struct device *dev)
> +static int wm97xx_register_touch(struct wm97xx *wm)
>  {
> -	struct wm97xx *wm;
> -	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
> -	int ret = 0, id = 0;
> +	struct wm97xx_pdata *pdata = dev_get_platdata(wm->dev);
> +	int ret;
>  
> -	wm = kzalloc(sizeof(struct wm97xx), GFP_KERNEL);
> -	if (!wm)
> +	wm->input_dev = devm_input_allocate_device(wm->dev);
> +	if (wm->input_dev == NULL)
>  		return -ENOMEM;
> -	mutex_init(&wm->codec_mutex);
>  
> -	wm->dev = dev;
> -	dev_set_drvdata(dev, wm);
> -	wm->ac97 = to_ac97_t(dev);
> +	/* set up touch configuration */
> +	wm->input_dev->name = "wm97xx touchscreen";
> +	wm->input_dev->phys = "wm97xx";
> +	wm->input_dev->open = wm97xx_ts_input_open;
> +	wm->input_dev->close = wm97xx_ts_input_close;
> +
> +	__set_bit(EV_ABS, wm->input_dev->evbit);
> +	__set_bit(EV_KEY, wm->input_dev->evbit);
> +	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
> +
> +	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
> +			     abs_x[2], 0);
> +	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
> +			     abs_y[2], 0);
> +	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
> +			     abs_p[2], 0);
> +
> +	input_set_drvdata(wm->input_dev, wm);
> +	wm->input_dev->dev.parent = wm->dev;
> +
> +	ret = input_register_device(wm->input_dev);
> +	if (ret)
> +		return ret;
> +
> +	/*
> +	 * register our extended touch device (for machine specific
> +	 * extensions)
> +	 */
> +	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
> +	if (!wm->touch_dev) {
> +		ret = -ENOMEM;
> +		goto touch_err;
> +	}
> +	platform_set_drvdata(wm->touch_dev, wm);
> +	wm->touch_dev->dev.parent = wm->dev;
> +	wm->touch_dev->dev.platform_data = pdata;
> +	ret = platform_device_add(wm->touch_dev);
> +	if (ret < 0)
> +		goto touch_reg_err;
> +
> +	return 0;
> +touch_reg_err:
> +	platform_device_put(wm->touch_dev);
> +touch_err:
> +	input_unregister_device(wm->input_dev);
> +	wm->input_dev = NULL;
> +
> +	return ret;
> +}
> +
> +static void wm97xx_unregister_touch(struct wm97xx *wm)
> +{
> +	platform_device_unregister(wm->touch_dev);
> +	input_unregister_device(wm->input_dev);
> +	wm->input_dev = NULL;
> +}
> +
> +static int _wm97xx_probe(struct wm97xx *wm)
> +{
> +	int id = 0;
> +
> +	mutex_init(&wm->codec_mutex);
> +	dev_set_drvdata(wm->dev, wm);
>  
>  	/* check that we have a supported codec */
>  	id = wm97xx_reg_read(wm, AC97_VENDOR_ID1);
>  	if (id != WM97XX_ID1) {
> -		dev_err(dev, "Device with vendor %04x is not a wm97xx\n", id);
> -		ret = -ENODEV;
> -		goto alloc_err;
> +		dev_err(wm->dev,
> +			"Device with vendor %04x is not a wm97xx\n", id);
> +		return -ENODEV;
>  	}
>  
>  	wm->id = wm97xx_reg_read(wm, AC97_VENDOR_ID2);
> @@ -629,8 +687,7 @@ static int wm97xx_probe(struct device *dev)
>  	default:
>  		dev_err(wm->dev, "Support for wm97%02x not compiled in.\n",
>  			wm->id & 0xff);
> -		ret = -ENODEV;
> -		goto alloc_err;
> +		return -ENODEV;
>  	}
>  
>  	/* set up physical characteristics */
> @@ -644,79 +701,58 @@ static int wm97xx_probe(struct device *dev)
>  	wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
>  	wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
>  
> -	wm->input_dev = input_allocate_device();
> -	if (wm->input_dev == NULL) {
> -		ret = -ENOMEM;
> -		goto alloc_err;
> -	}
> -
> -	/* set up touch configuration */
> -	wm->input_dev->name = "wm97xx touchscreen";
> -	wm->input_dev->phys = "wm97xx";
> -	wm->input_dev->open = wm97xx_ts_input_open;
> -	wm->input_dev->close = wm97xx_ts_input_close;
> -
> -	__set_bit(EV_ABS, wm->input_dev->evbit);
> -	__set_bit(EV_KEY, wm->input_dev->evbit);
> -	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
> -
> -	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
> -			     abs_x[2], 0);
> -	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
> -			     abs_y[2], 0);
> -	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
> -			     abs_p[2], 0);
> +	return wm97xx_register_touch(wm);
> +}
>  
> -	input_set_drvdata(wm->input_dev, wm);
> -	wm->input_dev->dev.parent = dev;
> +static void wm97xx_remove_battery(struct wm97xx *wm)
> +{
> +	platform_device_unregister(wm->battery_dev);
> +}
>  
> -	ret = input_register_device(wm->input_dev);
> -	if (ret < 0)
> -		goto dev_alloc_err;
> +static int wm97xx_add_battery(struct wm97xx *wm,
> +			      struct wm97xx_batt_pdata *pdata)
> +{
> +	int ret;
>  
> -	/* register our battery device */
>  	wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
> -	if (!wm->battery_dev) {
> -		ret = -ENOMEM;
> -		goto batt_err;
> -	}
> +	if (!wm->battery_dev)
> +		return -ENOMEM;
> +
>  	platform_set_drvdata(wm->battery_dev, wm);
> -	wm->battery_dev->dev.parent = dev;
> -	wm->battery_dev->dev.platform_data = pdata ? pdata->batt_pdata : NULL;
> +	wm->battery_dev->dev.parent = wm->dev;
> +	wm->battery_dev->dev.platform_data = pdata;
>  	ret = platform_device_add(wm->battery_dev);
> -	if (ret < 0)
> -		goto batt_reg_err;
> +	if (ret)
> +		platform_device_put(wm->battery_dev);
>  
> -	/* register our extended touch device (for machine specific
> -	 * extensions) */
> -	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
> -	if (!wm->touch_dev) {
> -		ret = -ENOMEM;
> -		goto touch_err;
> -	}
> -	platform_set_drvdata(wm->touch_dev, wm);
> -	wm->touch_dev->dev.parent = dev;
> -	wm->touch_dev->dev.platform_data = pdata;
> -	ret = platform_device_add(wm->touch_dev);
> +	return ret;
> +}
> +
> +static int wm97xx_probe(struct device *dev)
> +{
> +	struct wm97xx *wm;
> +	int ret;
> +	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
> +
> +	wm = devm_kzalloc(dev, sizeof(struct wm97xx), GFP_KERNEL);
> +	if (!wm)
> +		return -ENOMEM;
> +
> +	wm->dev = dev;
> +	wm->ac97 = to_ac97_t(dev);
> +
> +	ret =  _wm97xx_probe(wm);
> +	if (ret)
> +		return ret;
> +
> +	ret = wm97xx_add_battery(wm, pdata ? pdata->batt_pdata : NULL);
>  	if (ret < 0)
> -		goto touch_reg_err;
> +		goto batt_err;
>  
>  	return ret;
>  
> - touch_reg_err:
> -	platform_device_put(wm->touch_dev);
> - touch_err:
> -	platform_device_del(wm->battery_dev);
> - batt_reg_err:
> -	platform_device_put(wm->battery_dev);
> - batt_err:
> -	input_unregister_device(wm->input_dev);
> -	wm->input_dev = NULL;
> - dev_alloc_err:
> -	input_free_device(wm->input_dev);
> - alloc_err:
> -	kfree(wm);
> -
> +batt_err:
> +	wm97xx_unregister_touch(wm);
>  	return ret;
>  }
>  
> @@ -724,10 +760,8 @@ static int wm97xx_remove(struct device *dev)
>  {
>  	struct wm97xx *wm = dev_get_drvdata(dev);
>  
> -	platform_device_unregister(wm->battery_dev);
> -	platform_device_unregister(wm->touch_dev);
> -	input_unregister_device(wm->input_dev);
> -	kfree(wm);
> +	wm97xx_remove_battery(wm);
> +	wm97xx_unregister_touch(wm);
>  
>  	return 0;
>  }
> -- 
> 2.1.4
> 

-- 
Dmitry

^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [PATCH v2 06/12] Input: wm97xx: add new AC97 bus support
  2017-06-19  7:27   ` Robert Jarzmik
  (?)
@ 2017-06-20  2:44     ` Dmitry Torokhov
  -1 siblings, 0 replies; 60+ messages in thread
From: Dmitry Torokhov @ 2017-06-20  2:44 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: Lee Jones, Jaroslav Kysela, Takashi Iwai, Daniel Mack,
	Haojian Zhuang, Liam Girdwood, Mark Brown, Lars-Peter Clausen,
	Charles Keepax, linux-kernel, linux-input, patches, alsa-devel,
	linux-arm-kernel

On Mon, Jun 19, 2017 at 09:27:03AM +0200, Robert Jarzmik wrote:
> This adds support for the new AC97 bus code, which discovers the devices
> rather than uses platform data.
> 
> As part of this discovery, it enables a multi-function device wm97xx,
> which supports touchscreen, battery, ADC and an audio codec. This patch
> adds the code to bind the touchscreen "cell" as the touchscreen driver.
> 
> This was tested on the pxa architecture with a pxa270 + wm9713 + the
> mioa701 touchscreen.
> 
> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

> ---
>  drivers/input/touchscreen/Kconfig       |  2 +-
>  drivers/input/touchscreen/wm97xx-core.c | 56 ++++++++++++++++++++++++++++++++-
>  2 files changed, 56 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
> index 033599777651..22257f3e1059 100644
> --- a/drivers/input/touchscreen/Kconfig
> +++ b/drivers/input/touchscreen/Kconfig
> @@ -725,7 +725,7 @@ config TOUCHSCREEN_WM831X
>  
>  config TOUCHSCREEN_WM97XX
>  	tristate "Support for WM97xx AC97 touchscreen controllers"
> -	depends on AC97_BUS
> +	depends on AC97_BUS || AC97_BUS_NEW
>  	help
>  	  Say Y here if you have a Wolfson Microelectronics WM97xx
>  	  touchscreen connected to your system. Note that this option
> diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
> index 39869ffdc4fa..fd714ee881f7 100644
> --- a/drivers/input/touchscreen/wm97xx-core.c
> +++ b/drivers/input/touchscreen/wm97xx-core.c
> @@ -44,6 +44,7 @@
>  #include <linux/pm.h>
>  #include <linux/interrupt.h>
>  #include <linux/bitops.h>
> +#include <linux/mfd/wm97xx.h>
>  #include <linux/workqueue.h>
>  #include <linux/wm97xx.h>
>  #include <linux/uaccess.h>
> @@ -766,6 +767,39 @@ static int wm97xx_remove(struct device *dev)
>  	return 0;
>  }
>  
> +static int wm97xx_mfd_probe(struct platform_device *pdev)
> +{
> +	struct wm97xx *wm;
> +	struct wm97xx_platform_data *mfd_pdata = dev_get_platdata(&pdev->dev);
> +	int ret;
> +
> +	wm = devm_kzalloc(&pdev->dev, sizeof(struct wm97xx), GFP_KERNEL);
> +	if (!wm)
> +		return -ENOMEM;
> +
> +	wm->dev = &pdev->dev;
> +	wm->ac97 = mfd_pdata->ac97;
> +
> +	ret =  _wm97xx_probe(wm);
> +	if (ret)
> +		return ret;
> +
> +	ret = wm97xx_add_battery(wm, mfd_pdata->batt_pdata);
> +	if (ret < 0)
> +		goto batt_err;
> +
> +	return ret;
> +
> +batt_err:
> +	wm97xx_unregister_touch(wm);
> +	return ret;
> +}
> +
> +static int wm97xx_mfd_remove(struct platform_device *pdev)
> +{
> +	return wm97xx_remove(&pdev->dev);
> +}
> +
>  static int __maybe_unused wm97xx_suspend(struct device *dev)
>  {
>  	struct wm97xx *wm = dev_get_drvdata(dev);
> @@ -862,21 +896,41 @@ EXPORT_SYMBOL_GPL(wm97xx_unregister_mach_ops);
>  
>  static struct device_driver wm97xx_driver = {
>  	.name =		"wm97xx-ts",
> +#ifdef CONFIG_AC97_BUS
>  	.bus =		&ac97_bus_type,
> +#endif
>  	.owner =	THIS_MODULE,
>  	.probe =	wm97xx_probe,
>  	.remove =	wm97xx_remove,
>  	.pm =		&wm97xx_pm_ops,
>  };
>  
> +static struct platform_driver wm97xx_mfd_driver = {
> +	.driver = {
> +		.name =		"wm97xx-ts",
> +		.pm =		&wm97xx_pm_ops,
> +	},
> +	.probe =	wm97xx_mfd_probe,
> +	.remove =	wm97xx_mfd_remove,
> +};
> +
>  static int __init wm97xx_init(void)
>  {
> -	return driver_register(&wm97xx_driver);
> +	int ret;
> +
> +	ret = platform_driver_register(&wm97xx_mfd_driver);
> +	if (ret)
> +		return ret;
> +
> +	if (IS_BUILTIN(CONFIG_AC97_BUS))
> +		ret =  driver_register(&wm97xx_driver);
> +	return ret;
>  }
>  
>  static void __exit wm97xx_exit(void)
>  {
>  	driver_unregister(&wm97xx_driver);
> +	platform_driver_unregister(&wm97xx_mfd_driver);
>  }
>  
>  module_init(wm97xx_init);
> -- 
> 2.1.4
> 

-- 
Dmitry

^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [PATCH v2 06/12] Input: wm97xx: add new AC97 bus support
@ 2017-06-20  2:44     ` Dmitry Torokhov
  0 siblings, 0 replies; 60+ messages in thread
From: Dmitry Torokhov @ 2017-06-20  2:44 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: alsa-devel, Lars-Peter Clausen, linux-kernel, patches,
	Liam Girdwood, Haojian Zhuang, Takashi Iwai, Mark Brown,
	linux-arm-kernel, linux-input, Charles Keepax, Lee Jones,
	Daniel Mack

On Mon, Jun 19, 2017 at 09:27:03AM +0200, Robert Jarzmik wrote:
> This adds support for the new AC97 bus code, which discovers the devices
> rather than uses platform data.
> 
> As part of this discovery, it enables a multi-function device wm97xx,
> which supports touchscreen, battery, ADC and an audio codec. This patch
> adds the code to bind the touchscreen "cell" as the touchscreen driver.
> 
> This was tested on the pxa architecture with a pxa270 + wm9713 + the
> mioa701 touchscreen.
> 
> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

> ---
>  drivers/input/touchscreen/Kconfig       |  2 +-
>  drivers/input/touchscreen/wm97xx-core.c | 56 ++++++++++++++++++++++++++++++++-
>  2 files changed, 56 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
> index 033599777651..22257f3e1059 100644
> --- a/drivers/input/touchscreen/Kconfig
> +++ b/drivers/input/touchscreen/Kconfig
> @@ -725,7 +725,7 @@ config TOUCHSCREEN_WM831X
>  
>  config TOUCHSCREEN_WM97XX
>  	tristate "Support for WM97xx AC97 touchscreen controllers"
> -	depends on AC97_BUS
> +	depends on AC97_BUS || AC97_BUS_NEW
>  	help
>  	  Say Y here if you have a Wolfson Microelectronics WM97xx
>  	  touchscreen connected to your system. Note that this option
> diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
> index 39869ffdc4fa..fd714ee881f7 100644
> --- a/drivers/input/touchscreen/wm97xx-core.c
> +++ b/drivers/input/touchscreen/wm97xx-core.c
> @@ -44,6 +44,7 @@
>  #include <linux/pm.h>
>  #include <linux/interrupt.h>
>  #include <linux/bitops.h>
> +#include <linux/mfd/wm97xx.h>
>  #include <linux/workqueue.h>
>  #include <linux/wm97xx.h>
>  #include <linux/uaccess.h>
> @@ -766,6 +767,39 @@ static int wm97xx_remove(struct device *dev)
>  	return 0;
>  }
>  
> +static int wm97xx_mfd_probe(struct platform_device *pdev)
> +{
> +	struct wm97xx *wm;
> +	struct wm97xx_platform_data *mfd_pdata = dev_get_platdata(&pdev->dev);
> +	int ret;
> +
> +	wm = devm_kzalloc(&pdev->dev, sizeof(struct wm97xx), GFP_KERNEL);
> +	if (!wm)
> +		return -ENOMEM;
> +
> +	wm->dev = &pdev->dev;
> +	wm->ac97 = mfd_pdata->ac97;
> +
> +	ret =  _wm97xx_probe(wm);
> +	if (ret)
> +		return ret;
> +
> +	ret = wm97xx_add_battery(wm, mfd_pdata->batt_pdata);
> +	if (ret < 0)
> +		goto batt_err;
> +
> +	return ret;
> +
> +batt_err:
> +	wm97xx_unregister_touch(wm);
> +	return ret;
> +}
> +
> +static int wm97xx_mfd_remove(struct platform_device *pdev)
> +{
> +	return wm97xx_remove(&pdev->dev);
> +}
> +
>  static int __maybe_unused wm97xx_suspend(struct device *dev)
>  {
>  	struct wm97xx *wm = dev_get_drvdata(dev);
> @@ -862,21 +896,41 @@ EXPORT_SYMBOL_GPL(wm97xx_unregister_mach_ops);
>  
>  static struct device_driver wm97xx_driver = {
>  	.name =		"wm97xx-ts",
> +#ifdef CONFIG_AC97_BUS
>  	.bus =		&ac97_bus_type,
> +#endif
>  	.owner =	THIS_MODULE,
>  	.probe =	wm97xx_probe,
>  	.remove =	wm97xx_remove,
>  	.pm =		&wm97xx_pm_ops,
>  };
>  
> +static struct platform_driver wm97xx_mfd_driver = {
> +	.driver = {
> +		.name =		"wm97xx-ts",
> +		.pm =		&wm97xx_pm_ops,
> +	},
> +	.probe =	wm97xx_mfd_probe,
> +	.remove =	wm97xx_mfd_remove,
> +};
> +
>  static int __init wm97xx_init(void)
>  {
> -	return driver_register(&wm97xx_driver);
> +	int ret;
> +
> +	ret = platform_driver_register(&wm97xx_mfd_driver);
> +	if (ret)
> +		return ret;
> +
> +	if (IS_BUILTIN(CONFIG_AC97_BUS))
> +		ret =  driver_register(&wm97xx_driver);
> +	return ret;
>  }
>  
>  static void __exit wm97xx_exit(void)
>  {
>  	driver_unregister(&wm97xx_driver);
> +	platform_driver_unregister(&wm97xx_mfd_driver);
>  }
>  
>  module_init(wm97xx_init);
> -- 
> 2.1.4
> 

-- 
Dmitry

^ permalink raw reply	[flat|nested] 60+ messages in thread
* [PATCH v2 06/12] Input: wm97xx: add new AC97 bus support
@ 2017-06-20  2:44     ` Dmitry Torokhov
  0 siblings, 0 replies; 60+ messages in thread
From: Dmitry Torokhov @ 2017-06-20  2:44 UTC (permalink / raw)
  To: linux-arm-kernel

On Mon, Jun 19, 2017 at 09:27:03AM +0200, Robert Jarzmik wrote:
> This adds support for the new AC97 bus code, which discovers the devices
> rather than uses platform data.
> 
> As part of this discovery, it enables a multi-function device wm97xx,
> which supports touchscreen, battery, ADC and an audio codec. This patch
> adds the code to bind the touchscreen "cell" as the touchscreen driver.
> 
> This was tested on the pxa architecture with a pxa270 + wm9713 + the
> mioa701 touchscreen.
> 
> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

> ---
>  drivers/input/touchscreen/Kconfig       |  2 +-
>  drivers/input/touchscreen/wm97xx-core.c | 56 ++++++++++++++++++++++++++++++++-
>  2 files changed, 56 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
> index 033599777651..22257f3e1059 100644
> --- a/drivers/input/touchscreen/Kconfig
> +++ b/drivers/input/touchscreen/Kconfig
> @@ -725,7 +725,7 @@ config TOUCHSCREEN_WM831X
>  
>  config TOUCHSCREEN_WM97XX
>  	tristate "Support for WM97xx AC97 touchscreen controllers"
> -	depends on AC97_BUS
> +	depends on AC97_BUS || AC97_BUS_NEW
>  	help
>  	  Say Y here if you have a Wolfson Microelectronics WM97xx
>  	  touchscreen connected to your system. Note that this option
> diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
> index 39869ffdc4fa..fd714ee881f7 100644
> --- a/drivers/input/touchscreen/wm97xx-core.c
> +++ b/drivers/input/touchscreen/wm97xx-core.c
> @@ -44,6 +44,7 @@
>  #include <linux/pm.h>
>  #include <linux/interrupt.h>
>  #include <linux/bitops.h>
> +#include <linux/mfd/wm97xx.h>
>  #include <linux/workqueue.h>
>  #include <linux/wm97xx.h>
>  #include <linux/uaccess.h>
> @@ -766,6 +767,39 @@ static int wm97xx_remove(struct device *dev)
>  	return 0;
>  }
>  
> +static int wm97xx_mfd_probe(struct platform_device *pdev)
> +{
> +	struct wm97xx *wm;
> +	struct wm97xx_platform_data *mfd_pdata = dev_get_platdata(&pdev->dev);
> +	int ret;
> +
> +	wm = devm_kzalloc(&pdev->dev, sizeof(struct wm97xx), GFP_KERNEL);
> +	if (!wm)
> +		return -ENOMEM;
> +
> +	wm->dev = &pdev->dev;
> +	wm->ac97 = mfd_pdata->ac97;
> +
> +	ret =  _wm97xx_probe(wm);
> +	if (ret)
> +		return ret;
> +
> +	ret = wm97xx_add_battery(wm, mfd_pdata->batt_pdata);
> +	if (ret < 0)
> +		goto batt_err;
> +
> +	return ret;
> +
> +batt_err:
> +	wm97xx_unregister_touch(wm);
> +	return ret;
> +}
> +
> +static int wm97xx_mfd_remove(struct platform_device *pdev)
> +{
> +	return wm97xx_remove(&pdev->dev);
> +}
> +
>  static int __maybe_unused wm97xx_suspend(struct device *dev)
>  {
>  	struct wm97xx *wm = dev_get_drvdata(dev);
> @@ -862,21 +896,41 @@ EXPORT_SYMBOL_GPL(wm97xx_unregister_mach_ops);
>  
>  static struct device_driver wm97xx_driver = {
>  	.name =		"wm97xx-ts",
> +#ifdef CONFIG_AC97_BUS
>  	.bus =		&ac97_bus_type,
> +#endif
>  	.owner =	THIS_MODULE,
>  	.probe =	wm97xx_probe,
>  	.remove =	wm97xx_remove,
>  	.pm =		&wm97xx_pm_ops,
>  };
>  
> +static struct platform_driver wm97xx_mfd_driver = {
> +	.driver = {
> +		.name =		"wm97xx-ts",
> +		.pm =		&wm97xx_pm_ops,
> +	},
> +	.probe =	wm97xx_mfd_probe,
> +	.remove =	wm97xx_mfd_remove,
> +};
> +
>  static int __init wm97xx_init(void)
>  {
> -	return driver_register(&wm97xx_driver);
> +	int ret;
> +
> +	ret = platform_driver_register(&wm97xx_mfd_driver);
> +	if (ret)
> +		return ret;
> +
> +	if (IS_BUILTIN(CONFIG_AC97_BUS))
> +		ret =  driver_register(&wm97xx_driver);
> +	return ret;
>  }
>  
>  static void __exit wm97xx_exit(void)
>  {
>  	driver_unregister(&wm97xx_driver);
> +	platform_driver_unregister(&wm97xx_mfd_driver);
>  }
>  
>  module_init(wm97xx_init);
> -- 
> 2.1.4
> 

-- 
Dmitry

^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [alsa-devel] [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
  2017-06-19 11:57       ` Robert Jarzmik
  (?)
@ 2017-06-28 19:53         ` Mark Brown
  -1 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-06-28 19:53 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: Takashi Iwai, linux-input, alsa-devel, Lars-Peter Clausen,
	linux-kernel, Dmitry Torokhov, Liam Girdwood, Haojian Zhuang,
	linux-arm-kernel, patches, stable, Charles Keepax, Lee Jones,
	Daniel Mack

[-- Attachment #1: Type: text/plain, Size: 418 bytes --]

On Mon, Jun 19, 2017 at 01:57:20PM +0200, Robert Jarzmik wrote:

> My serie shifted by one, so the very first of the serie is therefore missing,
> formerly "ALSA: ac97: split out the generic ac97 registers" in
> https://patchwork.kernel.org/patch/9398143/, and the shift triggered the
> inclusion of the last patch of my tree, ie. yours :)

Based on the missing first patch I was expecting the series to get
reposted?

[-- Attachment #2: signature.asc --]
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^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-28 19:53         ` Mark Brown
  0 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-06-28 19:53 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: alsa-devel, Lars-Peter Clausen, Takashi Iwai, Dmitry Torokhov,
	linux-kernel, Haojian Zhuang, Liam Girdwood, patches, stable,
	linux-input, Daniel Mack, Charles Keepax, Lee Jones,
	linux-arm-kernel


[-- Attachment #1.1: Type: text/plain, Size: 418 bytes --]

On Mon, Jun 19, 2017 at 01:57:20PM +0200, Robert Jarzmik wrote:

> My serie shifted by one, so the very first of the serie is therefore missing,
> formerly "ALSA: ac97: split out the generic ac97 registers" in
> https://patchwork.kernel.org/patch/9398143/, and the shift triggered the
> inclusion of the last patch of my tree, ie. yours :)

Based on the missing first patch I was expecting the series to get
reposted?

[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

[-- Attachment #2: Type: text/plain, Size: 0 bytes --]



^ permalink raw reply	[flat|nested] 60+ messages in thread
* [alsa-devel] [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-28 19:53         ` Mark Brown
  0 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-06-28 19:53 UTC (permalink / raw)
  To: linux-arm-kernel

On Mon, Jun 19, 2017 at 01:57:20PM +0200, Robert Jarzmik wrote:

> My serie shifted by one, so the very first of the serie is therefore missing,
> formerly "ALSA: ac97: split out the generic ac97 registers" in
> https://patchwork.kernel.org/patch/9398143/, and the shift triggered the
> inclusion of the last patch of my tree, ie. yours :)

Based on the missing first patch I was expecting the series to get
reposted?
-------------- next part --------------
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^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [alsa-devel] [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
  2017-06-28 19:53         ` Mark Brown
  (?)
@ 2017-06-28 22:03           ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-28 22:03 UTC (permalink / raw)
  To: Mark Brown
  Cc: Takashi Iwai, linux-input, alsa-devel, Lars-Peter Clausen,
	linux-kernel, Dmitry Torokhov, Liam Girdwood, Haojian Zhuang,
	linux-arm-kernel, patches, stable, Charles Keepax, Lee Jones,
	Daniel Mack

Mark Brown <broonie@kernel.org> writes:

> On Mon, Jun 19, 2017 at 01:57:20PM +0200, Robert Jarzmik wrote:
>
>> My serie shifted by one, so the very first of the serie is therefore missing,
>> formerly "ALSA: ac97: split out the generic ac97 registers" in
>> https://patchwork.kernel.org/patch/9398143/, and the shift triggered the
>> inclusion of the last patch of my tree, ie. yours :)
>
> Based on the missing first patch I was expecting the series to get
> reposted?
Hi Mark,

The first patch is only moving around a .h file. I was expecting a review before
reposting a v3.

Cheers.

-- 
Robert

^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-28 22:03           ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-28 22:03 UTC (permalink / raw)
  To: Mark Brown
  Cc: alsa-devel, Lars-Peter Clausen, Takashi Iwai, Dmitry Torokhov,
	linux-kernel, Haojian Zhuang, Liam Girdwood, patches, stable,
	linux-input, Daniel Mack, Charles Keepax, Lee Jones,
	linux-arm-kernel

Mark Brown <broonie@kernel.org> writes:

> On Mon, Jun 19, 2017 at 01:57:20PM +0200, Robert Jarzmik wrote:
>
>> My serie shifted by one, so the very first of the serie is therefore missing,
>> formerly "ALSA: ac97: split out the generic ac97 registers" in
>> https://patchwork.kernel.org/patch/9398143/, and the shift triggered the
>> inclusion of the last patch of my tree, ie. yours :)
>
> Based on the missing first patch I was expecting the series to get
> reposted?
Hi Mark,

The first patch is only moving around a .h file. I was expecting a review before
reposting a v3.

Cheers.

-- 
Robert

^ permalink raw reply	[flat|nested] 60+ messages in thread
* [alsa-devel] [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-28 22:03           ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-28 22:03 UTC (permalink / raw)
  To: linux-arm-kernel

Mark Brown <broonie@kernel.org> writes:

> On Mon, Jun 19, 2017 at 01:57:20PM +0200, Robert Jarzmik wrote:
>
>> My serie shifted by one, so the very first of the serie is therefore missing,
>> formerly "ALSA: ac97: split out the generic ac97 registers" in
>> https://patchwork.kernel.org/patch/9398143/, and the shift triggered the
>> inclusion of the last patch of my tree, ie. yours :)
>
> Based on the missing first patch I was expecting the series to get
> reposted?
Hi Mark,

The first patch is only moving around a .h file. I was expecting a review before
reposting a v3.

Cheers.

-- 
Robert

^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [alsa-devel] [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
  2017-06-28 22:03           ` Robert Jarzmik
  (?)
@ 2017-06-30 11:56             ` Mark Brown
  -1 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-06-30 11:56 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: Takashi Iwai, linux-input, alsa-devel, Lars-Peter Clausen,
	linux-kernel, Dmitry Torokhov, Liam Girdwood, Haojian Zhuang,
	linux-arm-kernel, patches, stable, Charles Keepax, Lee Jones,
	Daniel Mack

[-- Attachment #1: Type: text/plain, Size: 476 bytes --]

On Thu, Jun 29, 2017 at 12:03:58AM +0200, Robert Jarzmik wrote:
> Mark Brown <broonie@kernel.org> writes:

> > Based on the missing first patch I was expecting the series to get
> > reposted?

> The first patch is only moving around a .h file. I was expecting a review before
> reposting a v3.

I can't tell what's in the first patch if you didn't send it.... :(
In general it's best to resend for things like this, I know I focus my
review on things that can progress as-is.

[-- Attachment #2: signature.asc --]
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^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-30 11:56             ` Mark Brown
  0 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-06-30 11:56 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: alsa-devel, Lars-Peter Clausen, Takashi Iwai, Dmitry Torokhov,
	linux-kernel, Haojian Zhuang, Liam Girdwood, patches, stable,
	linux-input, Daniel Mack, Charles Keepax, Lee Jones,
	linux-arm-kernel


[-- Attachment #1.1: Type: text/plain, Size: 476 bytes --]

On Thu, Jun 29, 2017 at 12:03:58AM +0200, Robert Jarzmik wrote:
> Mark Brown <broonie@kernel.org> writes:

> > Based on the missing first patch I was expecting the series to get
> > reposted?

> The first patch is only moving around a .h file. I was expecting a review before
> reposting a v3.

I can't tell what's in the first patch if you didn't send it.... :(
In general it's best to resend for things like this, I know I focus my
review on things that can progress as-is.

[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

[-- Attachment #2: Type: text/plain, Size: 0 bytes --]



^ permalink raw reply	[flat|nested] 60+ messages in thread
* [alsa-devel] [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-30 11:56             ` Mark Brown
  0 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-06-30 11:56 UTC (permalink / raw)
  To: linux-arm-kernel

On Thu, Jun 29, 2017 at 12:03:58AM +0200, Robert Jarzmik wrote:
> Mark Brown <broonie@kernel.org> writes:

> > Based on the missing first patch I was expecting the series to get
> > reposted?

> The first patch is only moving around a .h file. I was expecting a review before
> reposting a v3.

I can't tell what's in the first patch if you didn't send it.... :(
In general it's best to resend for things like this, I know I focus my
review on things that can progress as-is.
-------------- next part --------------
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^ permalink raw reply	[flat|nested] 60+ messages in thread
* Re: [alsa-devel] [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
  2017-06-30 11:56             ` Mark Brown
@ 2017-06-30 15:06               ` Robert Jarzmik
  -1 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-30 15:06 UTC (permalink / raw)
  To: Mark Brown
  Cc: Takashi Iwai, linux-input, alsa-devel, Lars-Peter Clausen,
	linux-kernel, Dmitry Torokhov, Liam Girdwood, Haojian Zhuang,
	linux-arm-kernel, patches, stable, Charles Keepax, Lee Jones,
	Daniel Mack

Mark Brown <broonie@kernel.org> writes:

> On Thu, Jun 29, 2017 at 12:03:58AM +0200, Robert Jarzmik wrote:
>> Mark Brown <broonie@kernel.org> writes:
>
>> > Based on the missing first patch I was expecting the series to get
>> > reposted?
>
>> The first patch is only moving around a .h file. I was expecting a review before
>> reposting a v3.
>
> I can't tell what's in the first patch if you didn't send it.... :(
> In general it's best to resend for things like this, I know I focus my
> review on things that can progress as-is.
OK, no problem, I'll resend a v2 resend in the following hours.

Cheers.

-- 
Robert

^ permalink raw reply	[flat|nested] 60+ messages in thread
* [alsa-devel] [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration
@ 2017-06-30 15:06               ` Robert Jarzmik
  0 siblings, 0 replies; 60+ messages in thread
From: Robert Jarzmik @ 2017-06-30 15:06 UTC (permalink / raw)
  To: linux-arm-kernel

Mark Brown <broonie@kernel.org> writes:

> On Thu, Jun 29, 2017 at 12:03:58AM +0200, Robert Jarzmik wrote:
>> Mark Brown <broonie@kernel.org> writes:
>
>> > Based on the missing first patch I was expecting the series to get
>> > reposted?
>
>> The first patch is only moving around a .h file. I was expecting a review before
>> reposting a v3.
>
> I can't tell what's in the first patch if you didn't send it.... :(
> In general it's best to resend for things like this, I know I focus my
> review on things that can progress as-is.
OK, no problem, I'll resend a v2 resend in the following hours.

Cheers.

-- 
Robert

^ permalink raw reply	[flat|nested] 60+ messages in thread
* Applied "ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic" to the asoc tree
  2017-06-19  7:27   ` Robert Jarzmik
  (?)
@ 2017-09-04 17:25     ` Mark Brown
  -1 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-09-04 17:25 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: Mark Brown, Dmitry Torokhov, Lee Jones, Jaroslav Kysela,
	Takashi Iwai, Daniel Mack, Haojian Zhuang, Liam Girdwood,
	Mark Brown, Lars-Peter Clausen, Charles Keepax, alsa-devel,
	patches, linux-kernel, linux-arm-kernel, linux-input, alsa-devel

The patch

   ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 6f8acad646d29fbf5665a6e0c9adae71c3c2131e Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Sat, 2 Sep 2017 21:54:06 +0200
Subject: [PATCH] ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic

All pxa library functions don't use the input parameters for nothing but
slot number. This simplifies their prototypes, and makes them usable by
both the legacy ac97 bus and the new ac97 bus.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/sound/pxa2xx-lib.h  | 15 +++++++++------
 sound/arm/pxa2xx-ac97-lib.c | 37 +++++++++++++++++++++----------------
 sound/arm/pxa2xx-ac97.c     | 35 +++++++++++++++++++++++++++--------
 sound/soc/pxa/pxa2xx-ac97.c | 32 ++++++++++++++++++++++++++------
 4 files changed, 83 insertions(+), 36 deletions(-)

diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
index 6ef629bde164..85352becec7c 100644
--- a/include/sound/pxa2xx-lib.h
+++ b/include/sound/pxa2xx-lib.h
@@ -1,10 +1,13 @@
 #ifndef PXA2XX_LIB_H
 #define PXA2XX_LIB_H
 
+#include <uapi/sound/asound.h>
 #include <linux/platform_device.h>
-#include <sound/ac97_codec.h>
 
 /* PCM */
+struct snd_pcm_substream;
+struct snd_pcm_hw_params;
+struct snd_pcm;
 
 extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
 				struct snd_pcm_hw_params *params);
@@ -21,12 +24,12 @@ extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
 
 /* AC97 */
 
-extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
-extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
+extern int pxa2xx_ac97_read(int slot, unsigned short reg);
+extern int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val);
 
-extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97);
-extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97);
-extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97);
+extern bool pxa2xx_ac97_try_warm_reset(void);
+extern bool pxa2xx_ac97_try_cold_reset(void);
+extern void pxa2xx_ac97_finish_reset(void);
 
 extern int pxa2xx_ac97_hw_suspend(void);
 extern int pxa2xx_ac97_hw_resume(void);
diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c
index 39c3969ac1c7..5950a9e218d9 100644
--- a/sound/arm/pxa2xx-ac97-lib.c
+++ b/sound/arm/pxa2xx-ac97-lib.c
@@ -20,7 +20,6 @@
 #include <linux/io.h>
 #include <linux/gpio.h>
 
-#include <sound/ac97_codec.h>
 #include <sound/pxa2xx-lib.h>
 
 #include <mach/irqs.h>
@@ -46,38 +45,41 @@ extern void pxa27x_configure_ac97reset(int reset_gpio, bool to_gpio);
  * 1 jiffy timeout if interrupt never comes).
  */
 
-unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
+int pxa2xx_ac97_read(int slot, unsigned short reg)
 {
-	unsigned short val = -1;
+	int val = -ENODEV;
 	volatile u32 *reg_addr;
 
+	if (slot > 0)
+		return -ENODEV;
+
 	mutex_lock(&car_mutex);
 
 	/* set up primary or secondary codec space */
 	if (cpu_is_pxa25x() && reg == AC97_GPIO_STATUS)
-		reg_addr = ac97->num ? &SMC_REG_BASE : &PMC_REG_BASE;
+		reg_addr = slot ? &SMC_REG_BASE : &PMC_REG_BASE;
 	else
-		reg_addr = ac97->num ? &SAC_REG_BASE : &PAC_REG_BASE;
+		reg_addr = slot ? &SAC_REG_BASE : &PAC_REG_BASE;
 	reg_addr += (reg >> 1);
 
 	/* start read access across the ac97 link */
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
-	val = *reg_addr;
+	val = (*reg_addr & 0xffff);
 	if (reg == AC97_GPIO_STATUS)
 		goto out;
 	if (wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_SDONE, 1) <= 0 &&
 	    !((GSR | gsr_bits) & GSR_SDONE)) {
 		printk(KERN_ERR "%s: read error (ac97_reg=%d GSR=%#lx)\n",
 				__func__, reg, GSR | gsr_bits);
-		val = -1;
+		val = -ETIMEDOUT;
 		goto out;
 	}
 
 	/* valid data now */
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
-	val = *reg_addr;
+	val = (*reg_addr & 0xffff);
 	/* but we've just started another cycle... */
 	wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_SDONE, 1);
 
@@ -86,29 +88,32 @@ out:	mutex_unlock(&car_mutex);
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_read);
 
-void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
-			unsigned short val)
+int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val)
 {
 	volatile u32 *reg_addr;
+	int ret = 0;
 
 	mutex_lock(&car_mutex);
 
 	/* set up primary or secondary codec space */
 	if (cpu_is_pxa25x() && reg == AC97_GPIO_STATUS)
-		reg_addr = ac97->num ? &SMC_REG_BASE : &PMC_REG_BASE;
+		reg_addr = slot ? &SMC_REG_BASE : &PMC_REG_BASE;
 	else
-		reg_addr = ac97->num ? &SAC_REG_BASE : &PAC_REG_BASE;
+		reg_addr = slot ? &SAC_REG_BASE : &PAC_REG_BASE;
 	reg_addr += (reg >> 1);
 
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
 	*reg_addr = val;
 	if (wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_CDONE, 1) <= 0 &&
-	    !((GSR | gsr_bits) & GSR_CDONE))
+	    !((GSR | gsr_bits) & GSR_CDONE)) {
 		printk(KERN_ERR "%s: write error (ac97_reg=%d GSR=%#lx)\n",
 				__func__, reg, GSR | gsr_bits);
+		ret = -EIO;
+	}
 
 	mutex_unlock(&car_mutex);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_write);
 
@@ -188,7 +193,7 @@ static inline void pxa_ac97_cold_pxa3xx(void)
 }
 #endif
 
-bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
+bool pxa2xx_ac97_try_warm_reset(void)
 {
 	unsigned long gsr;
 	unsigned int timeout = 100;
@@ -225,7 +230,7 @@ bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_warm_reset);
 
-bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
+bool pxa2xx_ac97_try_cold_reset(void)
 {
 	unsigned long gsr;
 	unsigned int timeout = 1000;
@@ -263,7 +268,7 @@ bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_cold_reset);
 
 
-void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97)
+void pxa2xx_ac97_finish_reset(void)
 {
 	GCR &= ~(GCR_PRIRDY_IEN|GCR_SECRDY_IEN);
 	GCR |= GCR_SDONE_IE|GCR_CDONE_IE;
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index fbd5dad0c484..4bc244c40f80 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -29,19 +29,38 @@
 
 #include "pxa2xx-pcm.h"
 
-static void pxa2xx_ac97_reset(struct snd_ac97 *ac97)
+static void pxa2xx_ac97_legacy_reset(struct snd_ac97 *ac97)
 {
-	if (!pxa2xx_ac97_try_cold_reset(ac97)) {
-		pxa2xx_ac97_try_warm_reset(ac97);
-	}
+	if (!pxa2xx_ac97_try_cold_reset())
+		pxa2xx_ac97_try_warm_reset();
+
+	pxa2xx_ac97_finish_reset();
+}
+
+static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
+					      unsigned short reg)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_read(ac97->num, reg);
+	if (ret < 0)
+		return 0;
+	else
+		return (unsigned short)(ret & 0xffff);
+}
+
+static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
+				     unsigned short reg, unsigned short val)
+{
+	int __always_unused ret;
 
-	pxa2xx_ac97_finish_reset(ac97);
+	ret = pxa2xx_ac97_write(ac97->num, reg, val);
 }
 
 static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_read,
-	.write	= pxa2xx_ac97_write,
-	.reset	= pxa2xx_ac97_reset,
+	.read	= pxa2xx_ac97_legacy_read,
+	.write	= pxa2xx_ac97_legacy_write,
+	.reset	= pxa2xx_ac97_legacy_reset,
 };
 
 static struct pxad_param pxa2xx_ac97_pcm_out_req = {
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index f49bf02e5ec2..803818aabee9 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -29,21 +29,41 @@
 
 static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
 {
-	pxa2xx_ac97_try_warm_reset(ac97);
+	pxa2xx_ac97_try_warm_reset();
 
-	pxa2xx_ac97_finish_reset(ac97);
+	pxa2xx_ac97_finish_reset();
 }
 
 static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
 {
-	pxa2xx_ac97_try_cold_reset(ac97);
+	pxa2xx_ac97_try_cold_reset();
 
-	pxa2xx_ac97_finish_reset(ac97);
+	pxa2xx_ac97_finish_reset();
+}
+
+static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
+					      unsigned short reg)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_read(ac97->num, reg);
+	if (ret < 0)
+		return 0;
+	else
+		return (unsigned short)(ret & 0xffff);
+}
+
+static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
+				     unsigned short reg, unsigned short val)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_write(ac97->num, reg, val);
 }
 
 static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_read,
-	.write	= pxa2xx_ac97_write,
+	.read	= pxa2xx_ac97_legacy_read,
+	.write	= pxa2xx_ac97_legacy_write,
 	.warm_reset	= pxa2xx_ac97_warm_reset,
 	.reset	= pxa2xx_ac97_cold_reset,
 };
-- 
2.14.1

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* Applied "ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic" to the asoc tree
@ 2017-09-04 17:25     ` Mark Brown
  0 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-09-04 17:25 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: Mark Brown, Dmitry Torokhov, Lee Jones, Jaroslav Kysela,
	Takashi Iwai, Daniel Mack, Haojian Zhuang, Liam Girdwood

The patch

   ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 6f8acad646d29fbf5665a6e0c9adae71c3c2131e Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Sat, 2 Sep 2017 21:54:06 +0200
Subject: [PATCH] ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic

All pxa library functions don't use the input parameters for nothing but
slot number. This simplifies their prototypes, and makes them usable by
both the legacy ac97 bus and the new ac97 bus.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/sound/pxa2xx-lib.h  | 15 +++++++++------
 sound/arm/pxa2xx-ac97-lib.c | 37 +++++++++++++++++++++----------------
 sound/arm/pxa2xx-ac97.c     | 35 +++++++++++++++++++++++++++--------
 sound/soc/pxa/pxa2xx-ac97.c | 32 ++++++++++++++++++++++++++------
 4 files changed, 83 insertions(+), 36 deletions(-)

diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
index 6ef629bde164..85352becec7c 100644
--- a/include/sound/pxa2xx-lib.h
+++ b/include/sound/pxa2xx-lib.h
@@ -1,10 +1,13 @@
 #ifndef PXA2XX_LIB_H
 #define PXA2XX_LIB_H
 
+#include <uapi/sound/asound.h>
 #include <linux/platform_device.h>
-#include <sound/ac97_codec.h>
 
 /* PCM */
+struct snd_pcm_substream;
+struct snd_pcm_hw_params;
+struct snd_pcm;
 
 extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
 				struct snd_pcm_hw_params *params);
@@ -21,12 +24,12 @@ extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
 
 /* AC97 */
 
-extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
-extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
+extern int pxa2xx_ac97_read(int slot, unsigned short reg);
+extern int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val);
 
-extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97);
-extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97);
-extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97);
+extern bool pxa2xx_ac97_try_warm_reset(void);
+extern bool pxa2xx_ac97_try_cold_reset(void);
+extern void pxa2xx_ac97_finish_reset(void);
 
 extern int pxa2xx_ac97_hw_suspend(void);
 extern int pxa2xx_ac97_hw_resume(void);
diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c
index 39c3969ac1c7..5950a9e218d9 100644
--- a/sound/arm/pxa2xx-ac97-lib.c
+++ b/sound/arm/pxa2xx-ac97-lib.c
@@ -20,7 +20,6 @@
 #include <linux/io.h>
 #include <linux/gpio.h>
 
-#include <sound/ac97_codec.h>
 #include <sound/pxa2xx-lib.h>
 
 #include <mach/irqs.h>
@@ -46,38 +45,41 @@ extern void pxa27x_configure_ac97reset(int reset_gpio, bool to_gpio);
  * 1 jiffy timeout if interrupt never comes).
  */
 
-unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
+int pxa2xx_ac97_read(int slot, unsigned short reg)
 {
-	unsigned short val = -1;
+	int val = -ENODEV;
 	volatile u32 *reg_addr;
 
+	if (slot > 0)
+		return -ENODEV;
+
 	mutex_lock(&car_mutex);
 
 	/* set up primary or secondary codec space */
 	if (cpu_is_pxa25x() && reg == AC97_GPIO_STATUS)
-		reg_addr = ac97->num ? &SMC_REG_BASE : &PMC_REG_BASE;
+		reg_addr = slot ? &SMC_REG_BASE : &PMC_REG_BASE;
 	else
-		reg_addr = ac97->num ? &SAC_REG_BASE : &PAC_REG_BASE;
+		reg_addr = slot ? &SAC_REG_BASE : &PAC_REG_BASE;
 	reg_addr += (reg >> 1);
 
 	/* start read access across the ac97 link */
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
-	val = *reg_addr;
+	val = (*reg_addr & 0xffff);
 	if (reg == AC97_GPIO_STATUS)
 		goto out;
 	if (wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_SDONE, 1) <= 0 &&
 	    !((GSR | gsr_bits) & GSR_SDONE)) {
 		printk(KERN_ERR "%s: read error (ac97_reg=%d GSR=%#lx)\n",
 				__func__, reg, GSR | gsr_bits);
-		val = -1;
+		val = -ETIMEDOUT;
 		goto out;
 	}
 
 	/* valid data now */
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
-	val = *reg_addr;
+	val = (*reg_addr & 0xffff);
 	/* but we've just started another cycle... */
 	wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_SDONE, 1);
 
@@ -86,29 +88,32 @@ out:	mutex_unlock(&car_mutex);
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_read);
 
-void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
-			unsigned short val)
+int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val)
 {
 	volatile u32 *reg_addr;
+	int ret = 0;
 
 	mutex_lock(&car_mutex);
 
 	/* set up primary or secondary codec space */
 	if (cpu_is_pxa25x() && reg == AC97_GPIO_STATUS)
-		reg_addr = ac97->num ? &SMC_REG_BASE : &PMC_REG_BASE;
+		reg_addr = slot ? &SMC_REG_BASE : &PMC_REG_BASE;
 	else
-		reg_addr = ac97->num ? &SAC_REG_BASE : &PAC_REG_BASE;
+		reg_addr = slot ? &SAC_REG_BASE : &PAC_REG_BASE;
 	reg_addr += (reg >> 1);
 
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
 	*reg_addr = val;
 	if (wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_CDONE, 1) <= 0 &&
-	    !((GSR | gsr_bits) & GSR_CDONE))
+	    !((GSR | gsr_bits) & GSR_CDONE)) {
 		printk(KERN_ERR "%s: write error (ac97_reg=%d GSR=%#lx)\n",
 				__func__, reg, GSR | gsr_bits);
+		ret = -EIO;
+	}
 
 	mutex_unlock(&car_mutex);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_write);
 
@@ -188,7 +193,7 @@ static inline void pxa_ac97_cold_pxa3xx(void)
 }
 #endif
 
-bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
+bool pxa2xx_ac97_try_warm_reset(void)
 {
 	unsigned long gsr;
 	unsigned int timeout = 100;
@@ -225,7 +230,7 @@ bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_warm_reset);
 
-bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
+bool pxa2xx_ac97_try_cold_reset(void)
 {
 	unsigned long gsr;
 	unsigned int timeout = 1000;
@@ -263,7 +268,7 @@ bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_cold_reset);
 
 
-void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97)
+void pxa2xx_ac97_finish_reset(void)
 {
 	GCR &= ~(GCR_PRIRDY_IEN|GCR_SECRDY_IEN);
 	GCR |= GCR_SDONE_IE|GCR_CDONE_IE;
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index fbd5dad0c484..4bc244c40f80 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -29,19 +29,38 @@
 
 #include "pxa2xx-pcm.h"
 
-static void pxa2xx_ac97_reset(struct snd_ac97 *ac97)
+static void pxa2xx_ac97_legacy_reset(struct snd_ac97 *ac97)
 {
-	if (!pxa2xx_ac97_try_cold_reset(ac97)) {
-		pxa2xx_ac97_try_warm_reset(ac97);
-	}
+	if (!pxa2xx_ac97_try_cold_reset())
+		pxa2xx_ac97_try_warm_reset();
+
+	pxa2xx_ac97_finish_reset();
+}
+
+static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
+					      unsigned short reg)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_read(ac97->num, reg);
+	if (ret < 0)
+		return 0;
+	else
+		return (unsigned short)(ret & 0xffff);
+}
+
+static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
+				     unsigned short reg, unsigned short val)
+{
+	int __always_unused ret;
 
-	pxa2xx_ac97_finish_reset(ac97);
+	ret = pxa2xx_ac97_write(ac97->num, reg, val);
 }
 
 static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_read,
-	.write	= pxa2xx_ac97_write,
-	.reset	= pxa2xx_ac97_reset,
+	.read	= pxa2xx_ac97_legacy_read,
+	.write	= pxa2xx_ac97_legacy_write,
+	.reset	= pxa2xx_ac97_legacy_reset,
 };
 
 static struct pxad_param pxa2xx_ac97_pcm_out_req = {
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index f49bf02e5ec2..803818aabee9 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -29,21 +29,41 @@
 
 static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
 {
-	pxa2xx_ac97_try_warm_reset(ac97);
+	pxa2xx_ac97_try_warm_reset();
 
-	pxa2xx_ac97_finish_reset(ac97);
+	pxa2xx_ac97_finish_reset();
 }
 
 static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
 {
-	pxa2xx_ac97_try_cold_reset(ac97);
+	pxa2xx_ac97_try_cold_reset();
 
-	pxa2xx_ac97_finish_reset(ac97);
+	pxa2xx_ac97_finish_reset();
+}
+
+static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
+					      unsigned short reg)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_read(ac97->num, reg);
+	if (ret < 0)
+		return 0;
+	else
+		return (unsigned short)(ret & 0xffff);
+}
+
+static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
+				     unsigned short reg, unsigned short val)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_write(ac97->num, reg, val);
 }
 
 static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_read,
-	.write	= pxa2xx_ac97_write,
+	.read	= pxa2xx_ac97_legacy_read,
+	.write	= pxa2xx_ac97_legacy_write,
 	.warm_reset	= pxa2xx_ac97_warm_reset,
 	.reset	= pxa2xx_ac97_cold_reset,
 };
-- 
2.14.1

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* Applied "ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic" to the asoc tree
@ 2017-09-04 17:25     ` Mark Brown
  0 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-09-04 17:25 UTC (permalink / raw)
  To: linux-arm-kernel

The patch

   ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 6f8acad646d29fbf5665a6e0c9adae71c3c2131e Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Sat, 2 Sep 2017 21:54:06 +0200
Subject: [PATCH] ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic

All pxa library functions don't use the input parameters for nothing but
slot number. This simplifies their prototypes, and makes them usable by
both the legacy ac97 bus and the new ac97 bus.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/sound/pxa2xx-lib.h  | 15 +++++++++------
 sound/arm/pxa2xx-ac97-lib.c | 37 +++++++++++++++++++++----------------
 sound/arm/pxa2xx-ac97.c     | 35 +++++++++++++++++++++++++++--------
 sound/soc/pxa/pxa2xx-ac97.c | 32 ++++++++++++++++++++++++++------
 4 files changed, 83 insertions(+), 36 deletions(-)

diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
index 6ef629bde164..85352becec7c 100644
--- a/include/sound/pxa2xx-lib.h
+++ b/include/sound/pxa2xx-lib.h
@@ -1,10 +1,13 @@
 #ifndef PXA2XX_LIB_H
 #define PXA2XX_LIB_H
 
+#include <uapi/sound/asound.h>
 #include <linux/platform_device.h>
-#include <sound/ac97_codec.h>
 
 /* PCM */
+struct snd_pcm_substream;
+struct snd_pcm_hw_params;
+struct snd_pcm;
 
 extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
 				struct snd_pcm_hw_params *params);
@@ -21,12 +24,12 @@ extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
 
 /* AC97 */
 
-extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
-extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
+extern int pxa2xx_ac97_read(int slot, unsigned short reg);
+extern int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val);
 
-extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97);
-extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97);
-extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97);
+extern bool pxa2xx_ac97_try_warm_reset(void);
+extern bool pxa2xx_ac97_try_cold_reset(void);
+extern void pxa2xx_ac97_finish_reset(void);
 
 extern int pxa2xx_ac97_hw_suspend(void);
 extern int pxa2xx_ac97_hw_resume(void);
diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c
index 39c3969ac1c7..5950a9e218d9 100644
--- a/sound/arm/pxa2xx-ac97-lib.c
+++ b/sound/arm/pxa2xx-ac97-lib.c
@@ -20,7 +20,6 @@
 #include <linux/io.h>
 #include <linux/gpio.h>
 
-#include <sound/ac97_codec.h>
 #include <sound/pxa2xx-lib.h>
 
 #include <mach/irqs.h>
@@ -46,38 +45,41 @@ extern void pxa27x_configure_ac97reset(int reset_gpio, bool to_gpio);
  * 1 jiffy timeout if interrupt never comes).
  */
 
-unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
+int pxa2xx_ac97_read(int slot, unsigned short reg)
 {
-	unsigned short val = -1;
+	int val = -ENODEV;
 	volatile u32 *reg_addr;
 
+	if (slot > 0)
+		return -ENODEV;
+
 	mutex_lock(&car_mutex);
 
 	/* set up primary or secondary codec space */
 	if (cpu_is_pxa25x() && reg == AC97_GPIO_STATUS)
-		reg_addr = ac97->num ? &SMC_REG_BASE : &PMC_REG_BASE;
+		reg_addr = slot ? &SMC_REG_BASE : &PMC_REG_BASE;
 	else
-		reg_addr = ac97->num ? &SAC_REG_BASE : &PAC_REG_BASE;
+		reg_addr = slot ? &SAC_REG_BASE : &PAC_REG_BASE;
 	reg_addr += (reg >> 1);
 
 	/* start read access across the ac97 link */
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
-	val = *reg_addr;
+	val = (*reg_addr & 0xffff);
 	if (reg == AC97_GPIO_STATUS)
 		goto out;
 	if (wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_SDONE, 1) <= 0 &&
 	    !((GSR | gsr_bits) & GSR_SDONE)) {
 		printk(KERN_ERR "%s: read error (ac97_reg=%d GSR=%#lx)\n",
 				__func__, reg, GSR | gsr_bits);
-		val = -1;
+		val = -ETIMEDOUT;
 		goto out;
 	}
 
 	/* valid data now */
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
-	val = *reg_addr;
+	val = (*reg_addr & 0xffff);
 	/* but we've just started another cycle... */
 	wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_SDONE, 1);
 
@@ -86,29 +88,32 @@ out:	mutex_unlock(&car_mutex);
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_read);
 
-void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
-			unsigned short val)
+int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val)
 {
 	volatile u32 *reg_addr;
+	int ret = 0;
 
 	mutex_lock(&car_mutex);
 
 	/* set up primary or secondary codec space */
 	if (cpu_is_pxa25x() && reg == AC97_GPIO_STATUS)
-		reg_addr = ac97->num ? &SMC_REG_BASE : &PMC_REG_BASE;
+		reg_addr = slot ? &SMC_REG_BASE : &PMC_REG_BASE;
 	else
-		reg_addr = ac97->num ? &SAC_REG_BASE : &PAC_REG_BASE;
+		reg_addr = slot ? &SAC_REG_BASE : &PAC_REG_BASE;
 	reg_addr += (reg >> 1);
 
 	GSR = GSR_CDONE | GSR_SDONE;
 	gsr_bits = 0;
 	*reg_addr = val;
 	if (wait_event_timeout(gsr_wq, (GSR | gsr_bits) & GSR_CDONE, 1) <= 0 &&
-	    !((GSR | gsr_bits) & GSR_CDONE))
+	    !((GSR | gsr_bits) & GSR_CDONE)) {
 		printk(KERN_ERR "%s: write error (ac97_reg=%d GSR=%#lx)\n",
 				__func__, reg, GSR | gsr_bits);
+		ret = -EIO;
+	}
 
 	mutex_unlock(&car_mutex);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_write);
 
@@ -188,7 +193,7 @@ static inline void pxa_ac97_cold_pxa3xx(void)
 }
 #endif
 
-bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
+bool pxa2xx_ac97_try_warm_reset(void)
 {
 	unsigned long gsr;
 	unsigned int timeout = 100;
@@ -225,7 +230,7 @@ bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
 }
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_warm_reset);
 
-bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
+bool pxa2xx_ac97_try_cold_reset(void)
 {
 	unsigned long gsr;
 	unsigned int timeout = 1000;
@@ -263,7 +268,7 @@ bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_cold_reset);
 
 
-void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97)
+void pxa2xx_ac97_finish_reset(void)
 {
 	GCR &= ~(GCR_PRIRDY_IEN|GCR_SECRDY_IEN);
 	GCR |= GCR_SDONE_IE|GCR_CDONE_IE;
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index fbd5dad0c484..4bc244c40f80 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -29,19 +29,38 @@
 
 #include "pxa2xx-pcm.h"
 
-static void pxa2xx_ac97_reset(struct snd_ac97 *ac97)
+static void pxa2xx_ac97_legacy_reset(struct snd_ac97 *ac97)
 {
-	if (!pxa2xx_ac97_try_cold_reset(ac97)) {
-		pxa2xx_ac97_try_warm_reset(ac97);
-	}
+	if (!pxa2xx_ac97_try_cold_reset())
+		pxa2xx_ac97_try_warm_reset();
+
+	pxa2xx_ac97_finish_reset();
+}
+
+static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
+					      unsigned short reg)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_read(ac97->num, reg);
+	if (ret < 0)
+		return 0;
+	else
+		return (unsigned short)(ret & 0xffff);
+}
+
+static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
+				     unsigned short reg, unsigned short val)
+{
+	int __always_unused ret;
 
-	pxa2xx_ac97_finish_reset(ac97);
+	ret = pxa2xx_ac97_write(ac97->num, reg, val);
 }
 
 static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_read,
-	.write	= pxa2xx_ac97_write,
-	.reset	= pxa2xx_ac97_reset,
+	.read	= pxa2xx_ac97_legacy_read,
+	.write	= pxa2xx_ac97_legacy_write,
+	.reset	= pxa2xx_ac97_legacy_reset,
 };
 
 static struct pxad_param pxa2xx_ac97_pcm_out_req = {
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index f49bf02e5ec2..803818aabee9 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -29,21 +29,41 @@
 
 static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
 {
-	pxa2xx_ac97_try_warm_reset(ac97);
+	pxa2xx_ac97_try_warm_reset();
 
-	pxa2xx_ac97_finish_reset(ac97);
+	pxa2xx_ac97_finish_reset();
 }
 
 static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
 {
-	pxa2xx_ac97_try_cold_reset(ac97);
+	pxa2xx_ac97_try_cold_reset();
 
-	pxa2xx_ac97_finish_reset(ac97);
+	pxa2xx_ac97_finish_reset();
+}
+
+static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97,
+					      unsigned short reg)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_read(ac97->num, reg);
+	if (ret < 0)
+		return 0;
+	else
+		return (unsigned short)(ret & 0xffff);
+}
+
+static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97,
+				     unsigned short reg, unsigned short val)
+{
+	int ret;
+
+	ret = pxa2xx_ac97_write(ac97->num, reg, val);
 }
 
 static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
-	.read	= pxa2xx_ac97_read,
-	.write	= pxa2xx_ac97_write,
+	.read	= pxa2xx_ac97_legacy_read,
+	.write	= pxa2xx_ac97_legacy_write,
 	.warm_reset	= pxa2xx_ac97_warm_reset,
 	.reset	= pxa2xx_ac97_cold_reset,
 };
-- 
2.14.1

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* Applied "ASoC: wm9705: add private structure" to the asoc tree
  2017-06-19  7:27   ` Robert Jarzmik
  (?)
@ 2017-09-19 16:11     ` Mark Brown
  -1 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-09-19 16:11 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: Charles Keepax, Mark Brown, Dmitry Torokhov, Lee Jones,
	Jaroslav Kysela, Takashi Iwai, Daniel Mack, Haojian Zhuang,
	Liam Girdwood, Mark Brown, Lars-Peter Clausen, Charles Keepax,
	alsa-devel, patches, linux-kernel, linux-arm-kernel, linux-input,
	alsa-devel

The patch

   ASoC: wm9705: add private structure

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From c6e46e52b7b3301dda529830226e578cf773151c Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Wed, 13 Sep 2017 21:37:21 +0200
Subject: [PATCH] ASoC: wm9705: add private structure

Add a private data structure. This is a preparation for a codec which
would need an another data on top of snd_ac97, which will be the case
when an MFD wm97xx device will probe wm9705.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/codecs/wm9705.c | 36 ++++++++++++++++++++++++------------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index f6d5c0f2aea5..08477d040028 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -24,6 +24,10 @@
 #define WM9705_VENDOR_ID 0x574d4c05
 #define WM9705_VENDOR_ID_MASK 0xffffffff
 
+struct wm9705_priv {
+	struct snd_ac97 *ac97;
+};
+
 static const struct reg_default wm9705_reg_defaults[] = {
 	{ 0x02, 0x8000 },
 	{ 0x04, 0x8000 },
@@ -292,10 +296,10 @@ static int wm9705_soc_suspend(struct snd_soc_codec *codec)
 
 static int wm9705_soc_resume(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 	int ret;
 
-	ret = snd_ac97_reset(ac97, true, WM9705_VENDOR_ID,
+	ret = snd_ac97_reset(wm9705->ac97, true, WM9705_VENDOR_ID,
 		WM9705_VENDOR_ID_MASK);
 	if (ret < 0)
 		return ret;
@@ -311,38 +315,38 @@ static int wm9705_soc_resume(struct snd_soc_codec *codec)
 
 static int wm9705_soc_probe(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97;
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 	struct regmap *regmap;
 	int ret;
 
-	ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
-		WM9705_VENDOR_ID_MASK);
-	if (IS_ERR(ac97)) {
+	wm9705->ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
+					      WM9705_VENDOR_ID_MASK);
+	if (IS_ERR(wm9705->ac97)) {
 		dev_err(codec->dev, "Failed to register AC97 codec\n");
-		return PTR_ERR(ac97);
+		return PTR_ERR(wm9705->ac97);
 	}
 
-	regmap = regmap_init_ac97(ac97, &wm9705_regmap_config);
+	regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
 	if (IS_ERR(regmap)) {
 		ret = PTR_ERR(regmap);
 		goto err_free_ac97_codec;
 	}
 
-	snd_soc_codec_set_drvdata(codec, ac97);
+	snd_soc_codec_set_drvdata(codec, wm9705->ac97);
 	snd_soc_codec_init_regmap(codec, regmap);
 
 	return 0;
 err_free_ac97_codec:
-	snd_soc_free_ac97_codec(ac97);
+	snd_soc_free_ac97_codec(wm9705->ac97);
 	return ret;
 }
 
 static int wm9705_soc_remove(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 
 	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(ac97);
+	snd_soc_free_ac97_codec(wm9705->ac97);
 	return 0;
 }
 
@@ -364,6 +368,14 @@ static const struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
 
 static int wm9705_probe(struct platform_device *pdev)
 {
+	struct wm9705_priv *wm9705;
+
+	wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL);
+	if (wm9705 == NULL)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, wm9705);
+
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
 }
-- 
2.14.1

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* Applied "ASoC: wm9705: add private structure" to the asoc tree
@ 2017-09-19 16:11     ` Mark Brown
  0 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-09-19 16:11 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: Charles Keepax, Mark Brown, Dmitry Torokhov, Lee Jones,
	Jaroslav Kysela, Takashi Iwai, Daniel Mack, Haojian Zhuang,
	Liam Girdwood

The patch

   ASoC: wm9705: add private structure

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From c6e46e52b7b3301dda529830226e578cf773151c Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Wed, 13 Sep 2017 21:37:21 +0200
Subject: [PATCH] ASoC: wm9705: add private structure

Add a private data structure. This is a preparation for a codec which
would need an another data on top of snd_ac97, which will be the case
when an MFD wm97xx device will probe wm9705.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/codecs/wm9705.c | 36 ++++++++++++++++++++++++------------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index f6d5c0f2aea5..08477d040028 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -24,6 +24,10 @@
 #define WM9705_VENDOR_ID 0x574d4c05
 #define WM9705_VENDOR_ID_MASK 0xffffffff
 
+struct wm9705_priv {
+	struct snd_ac97 *ac97;
+};
+
 static const struct reg_default wm9705_reg_defaults[] = {
 	{ 0x02, 0x8000 },
 	{ 0x04, 0x8000 },
@@ -292,10 +296,10 @@ static int wm9705_soc_suspend(struct snd_soc_codec *codec)
 
 static int wm9705_soc_resume(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 	int ret;
 
-	ret = snd_ac97_reset(ac97, true, WM9705_VENDOR_ID,
+	ret = snd_ac97_reset(wm9705->ac97, true, WM9705_VENDOR_ID,
 		WM9705_VENDOR_ID_MASK);
 	if (ret < 0)
 		return ret;
@@ -311,38 +315,38 @@ static int wm9705_soc_resume(struct snd_soc_codec *codec)
 
 static int wm9705_soc_probe(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97;
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 	struct regmap *regmap;
 	int ret;
 
-	ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
-		WM9705_VENDOR_ID_MASK);
-	if (IS_ERR(ac97)) {
+	wm9705->ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
+					      WM9705_VENDOR_ID_MASK);
+	if (IS_ERR(wm9705->ac97)) {
 		dev_err(codec->dev, "Failed to register AC97 codec\n");
-		return PTR_ERR(ac97);
+		return PTR_ERR(wm9705->ac97);
 	}
 
-	regmap = regmap_init_ac97(ac97, &wm9705_regmap_config);
+	regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
 	if (IS_ERR(regmap)) {
 		ret = PTR_ERR(regmap);
 		goto err_free_ac97_codec;
 	}
 
-	snd_soc_codec_set_drvdata(codec, ac97);
+	snd_soc_codec_set_drvdata(codec, wm9705->ac97);
 	snd_soc_codec_init_regmap(codec, regmap);
 
 	return 0;
 err_free_ac97_codec:
-	snd_soc_free_ac97_codec(ac97);
+	snd_soc_free_ac97_codec(wm9705->ac97);
 	return ret;
 }
 
 static int wm9705_soc_remove(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 
 	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(ac97);
+	snd_soc_free_ac97_codec(wm9705->ac97);
 	return 0;
 }
 
@@ -364,6 +368,14 @@ static const struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
 
 static int wm9705_probe(struct platform_device *pdev)
 {
+	struct wm9705_priv *wm9705;
+
+	wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL);
+	if (wm9705 == NULL)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, wm9705);
+
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
 }
-- 
2.14.1

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* Applied "ASoC: wm9705: add private structure" to the asoc tree
@ 2017-09-19 16:11     ` Mark Brown
  0 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-09-19 16:11 UTC (permalink / raw)
  To: linux-arm-kernel

The patch

   ASoC: wm9705: add private structure

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From c6e46e52b7b3301dda529830226e578cf773151c Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Wed, 13 Sep 2017 21:37:21 +0200
Subject: [PATCH] ASoC: wm9705: add private structure

Add a private data structure. This is a preparation for a codec which
would need an another data on top of snd_ac97, which will be the case
when an MFD wm97xx device will probe wm9705.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/codecs/wm9705.c | 36 ++++++++++++++++++++++++------------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index f6d5c0f2aea5..08477d040028 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -24,6 +24,10 @@
 #define WM9705_VENDOR_ID 0x574d4c05
 #define WM9705_VENDOR_ID_MASK 0xffffffff
 
+struct wm9705_priv {
+	struct snd_ac97 *ac97;
+};
+
 static const struct reg_default wm9705_reg_defaults[] = {
 	{ 0x02, 0x8000 },
 	{ 0x04, 0x8000 },
@@ -292,10 +296,10 @@ static int wm9705_soc_suspend(struct snd_soc_codec *codec)
 
 static int wm9705_soc_resume(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 	int ret;
 
-	ret = snd_ac97_reset(ac97, true, WM9705_VENDOR_ID,
+	ret = snd_ac97_reset(wm9705->ac97, true, WM9705_VENDOR_ID,
 		WM9705_VENDOR_ID_MASK);
 	if (ret < 0)
 		return ret;
@@ -311,38 +315,38 @@ static int wm9705_soc_resume(struct snd_soc_codec *codec)
 
 static int wm9705_soc_probe(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97;
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 	struct regmap *regmap;
 	int ret;
 
-	ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
-		WM9705_VENDOR_ID_MASK);
-	if (IS_ERR(ac97)) {
+	wm9705->ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
+					      WM9705_VENDOR_ID_MASK);
+	if (IS_ERR(wm9705->ac97)) {
 		dev_err(codec->dev, "Failed to register AC97 codec\n");
-		return PTR_ERR(ac97);
+		return PTR_ERR(wm9705->ac97);
 	}
 
-	regmap = regmap_init_ac97(ac97, &wm9705_regmap_config);
+	regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
 	if (IS_ERR(regmap)) {
 		ret = PTR_ERR(regmap);
 		goto err_free_ac97_codec;
 	}
 
-	snd_soc_codec_set_drvdata(codec, ac97);
+	snd_soc_codec_set_drvdata(codec, wm9705->ac97);
 	snd_soc_codec_init_regmap(codec, regmap);
 
 	return 0;
 err_free_ac97_codec:
-	snd_soc_free_ac97_codec(ac97);
+	snd_soc_free_ac97_codec(wm9705->ac97);
 	return ret;
 }
 
 static int wm9705_soc_remove(struct snd_soc_codec *codec)
 {
-	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
+	struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
 
 	snd_soc_codec_exit_regmap(codec);
-	snd_soc_free_ac97_codec(ac97);
+	snd_soc_free_ac97_codec(wm9705->ac97);
 	return 0;
 }
 
@@ -364,6 +368,14 @@ static const struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
 
 static int wm9705_probe(struct platform_device *pdev)
 {
+	struct wm9705_priv *wm9705;
+
+	wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL);
+	if (wm9705 == NULL)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, wm9705);
+
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
 }
-- 
2.14.1

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* Applied "Input: wm97xx: split out touchscreen registering" to the asoc tree
  2017-06-19  7:27   ` Robert Jarzmik
  (?)
@ 2017-09-19 16:11     ` Mark Brown
  -1 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-09-19 16:11 UTC (permalink / raw)
  To: Robert Jarzmik
  Cc: Dmitry Torokhov, Charles Keepax, Mark Brown, Dmitry Torokhov,
	Lee Jones, Jaroslav Kysela, Takashi Iwai, Daniel Mack,
	Haojian Zhuang, Liam Girdwood, Mark Brown, Lars-Peter Clausen,
	Charles Keepax, alsa-devel, patches, linux-kernel,
	linux-arm-kernel, linux-input, alsa-devel

The patch

   Input: wm97xx: split out touchscreen registering

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From c72f61e7407335dfa5fe5947827777b1429cd883 Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Wed, 13 Sep 2017 21:37:16 +0200
Subject: [PATCH] Input: wm97xx: split out touchscreen registering

wm97xx-core does several things in it initialization :
 - touchscreen input device setup
 - battery device creation

As the wm97xx is actually a multi-function device handling an audio
codec, a touchscreen, a gpio block and an ADC, reshape the probing to
isolate what is truly input/touchscreen specific from the remaining
part.

This is only code shuffling, there is no functional change.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 drivers/input/touchscreen/wm97xx-core.c | 196 +++++++++++++++++++-------------
 1 file changed, 115 insertions(+), 81 deletions(-)

diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index c9d1c91e1887..39869ffdc4fa 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -581,27 +581,85 @@ static void wm97xx_ts_input_close(struct input_dev *idev)
 		wm->codec->acc_enable(wm, 0);
 }
 
-static int wm97xx_probe(struct device *dev)
+static int wm97xx_register_touch(struct wm97xx *wm)
 {
-	struct wm97xx *wm;
-	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
-	int ret = 0, id = 0;
+	struct wm97xx_pdata *pdata = dev_get_platdata(wm->dev);
+	int ret;
 
-	wm = kzalloc(sizeof(struct wm97xx), GFP_KERNEL);
-	if (!wm)
+	wm->input_dev = devm_input_allocate_device(wm->dev);
+	if (wm->input_dev == NULL)
 		return -ENOMEM;
-	mutex_init(&wm->codec_mutex);
 
-	wm->dev = dev;
-	dev_set_drvdata(dev, wm);
-	wm->ac97 = to_ac97_t(dev);
+	/* set up touch configuration */
+	wm->input_dev->name = "wm97xx touchscreen";
+	wm->input_dev->phys = "wm97xx";
+	wm->input_dev->open = wm97xx_ts_input_open;
+	wm->input_dev->close = wm97xx_ts_input_close;
+
+	__set_bit(EV_ABS, wm->input_dev->evbit);
+	__set_bit(EV_KEY, wm->input_dev->evbit);
+	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
+
+	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
+			     abs_x[2], 0);
+	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
+			     abs_y[2], 0);
+	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
+			     abs_p[2], 0);
+
+	input_set_drvdata(wm->input_dev, wm);
+	wm->input_dev->dev.parent = wm->dev;
+
+	ret = input_register_device(wm->input_dev);
+	if (ret)
+		return ret;
+
+	/*
+	 * register our extended touch device (for machine specific
+	 * extensions)
+	 */
+	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
+	if (!wm->touch_dev) {
+		ret = -ENOMEM;
+		goto touch_err;
+	}
+	platform_set_drvdata(wm->touch_dev, wm);
+	wm->touch_dev->dev.parent = wm->dev;
+	wm->touch_dev->dev.platform_data = pdata;
+	ret = platform_device_add(wm->touch_dev);
+	if (ret < 0)
+		goto touch_reg_err;
+
+	return 0;
+touch_reg_err:
+	platform_device_put(wm->touch_dev);
+touch_err:
+	input_unregister_device(wm->input_dev);
+	wm->input_dev = NULL;
+
+	return ret;
+}
+
+static void wm97xx_unregister_touch(struct wm97xx *wm)
+{
+	platform_device_unregister(wm->touch_dev);
+	input_unregister_device(wm->input_dev);
+	wm->input_dev = NULL;
+}
+
+static int _wm97xx_probe(struct wm97xx *wm)
+{
+	int id = 0;
+
+	mutex_init(&wm->codec_mutex);
+	dev_set_drvdata(wm->dev, wm);
 
 	/* check that we have a supported codec */
 	id = wm97xx_reg_read(wm, AC97_VENDOR_ID1);
 	if (id != WM97XX_ID1) {
-		dev_err(dev, "Device with vendor %04x is not a wm97xx\n", id);
-		ret = -ENODEV;
-		goto alloc_err;
+		dev_err(wm->dev,
+			"Device with vendor %04x is not a wm97xx\n", id);
+		return -ENODEV;
 	}
 
 	wm->id = wm97xx_reg_read(wm, AC97_VENDOR_ID2);
@@ -629,8 +687,7 @@ static int wm97xx_probe(struct device *dev)
 	default:
 		dev_err(wm->dev, "Support for wm97%02x not compiled in.\n",
 			wm->id & 0xff);
-		ret = -ENODEV;
-		goto alloc_err;
+		return -ENODEV;
 	}
 
 	/* set up physical characteristics */
@@ -644,79 +701,58 @@ static int wm97xx_probe(struct device *dev)
 	wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
 	wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
 
-	wm->input_dev = input_allocate_device();
-	if (wm->input_dev == NULL) {
-		ret = -ENOMEM;
-		goto alloc_err;
-	}
-
-	/* set up touch configuration */
-	wm->input_dev->name = "wm97xx touchscreen";
-	wm->input_dev->phys = "wm97xx";
-	wm->input_dev->open = wm97xx_ts_input_open;
-	wm->input_dev->close = wm97xx_ts_input_close;
-
-	__set_bit(EV_ABS, wm->input_dev->evbit);
-	__set_bit(EV_KEY, wm->input_dev->evbit);
-	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
-
-	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
-			     abs_x[2], 0);
-	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
-			     abs_y[2], 0);
-	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
-			     abs_p[2], 0);
+	return wm97xx_register_touch(wm);
+}
 
-	input_set_drvdata(wm->input_dev, wm);
-	wm->input_dev->dev.parent = dev;
+static void wm97xx_remove_battery(struct wm97xx *wm)
+{
+	platform_device_unregister(wm->battery_dev);
+}
 
-	ret = input_register_device(wm->input_dev);
-	if (ret < 0)
-		goto dev_alloc_err;
+static int wm97xx_add_battery(struct wm97xx *wm,
+			      struct wm97xx_batt_pdata *pdata)
+{
+	int ret;
 
-	/* register our battery device */
 	wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
-	if (!wm->battery_dev) {
-		ret = -ENOMEM;
-		goto batt_err;
-	}
+	if (!wm->battery_dev)
+		return -ENOMEM;
+
 	platform_set_drvdata(wm->battery_dev, wm);
-	wm->battery_dev->dev.parent = dev;
-	wm->battery_dev->dev.platform_data = pdata ? pdata->batt_pdata : NULL;
+	wm->battery_dev->dev.parent = wm->dev;
+	wm->battery_dev->dev.platform_data = pdata;
 	ret = platform_device_add(wm->battery_dev);
-	if (ret < 0)
-		goto batt_reg_err;
+	if (ret)
+		platform_device_put(wm->battery_dev);
 
-	/* register our extended touch device (for machine specific
-	 * extensions) */
-	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
-	if (!wm->touch_dev) {
-		ret = -ENOMEM;
-		goto touch_err;
-	}
-	platform_set_drvdata(wm->touch_dev, wm);
-	wm->touch_dev->dev.parent = dev;
-	wm->touch_dev->dev.platform_data = pdata;
-	ret = platform_device_add(wm->touch_dev);
+	return ret;
+}
+
+static int wm97xx_probe(struct device *dev)
+{
+	struct wm97xx *wm;
+	int ret;
+	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
+
+	wm = devm_kzalloc(dev, sizeof(struct wm97xx), GFP_KERNEL);
+	if (!wm)
+		return -ENOMEM;
+
+	wm->dev = dev;
+	wm->ac97 = to_ac97_t(dev);
+
+	ret =  _wm97xx_probe(wm);
+	if (ret)
+		return ret;
+
+	ret = wm97xx_add_battery(wm, pdata ? pdata->batt_pdata : NULL);
 	if (ret < 0)
-		goto touch_reg_err;
+		goto batt_err;
 
 	return ret;
 
- touch_reg_err:
-	platform_device_put(wm->touch_dev);
- touch_err:
-	platform_device_del(wm->battery_dev);
- batt_reg_err:
-	platform_device_put(wm->battery_dev);
- batt_err:
-	input_unregister_device(wm->input_dev);
-	wm->input_dev = NULL;
- dev_alloc_err:
-	input_free_device(wm->input_dev);
- alloc_err:
-	kfree(wm);
-
+batt_err:
+	wm97xx_unregister_touch(wm);
 	return ret;
 }
 
@@ -724,10 +760,8 @@ static int wm97xx_remove(struct device *dev)
 {
 	struct wm97xx *wm = dev_get_drvdata(dev);
 
-	platform_device_unregister(wm->battery_dev);
-	platform_device_unregister(wm->touch_dev);
-	input_unregister_device(wm->input_dev);
-	kfree(wm);
+	wm97xx_remove_battery(wm);
+	wm97xx_unregister_touch(wm);
 
 	return 0;
 }
-- 
2.14.1

^ permalink raw reply related	[flat|nested] 60+ messages in thread
* Applied "Input: wm97xx: split out touchscreen registering" to the asoc tree
@ 2017-09-19 16:11     ` Mark Brown
  0 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-09-19 16:11 UTC (permalink / raw)
  To: Robert Jarzmik; +Cc: Dmitry Torokhov, Charles Keepax, Mark Brown

The patch

   Input: wm97xx: split out touchscreen registering

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From c72f61e7407335dfa5fe5947827777b1429cd883 Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Wed, 13 Sep 2017 21:37:16 +0200
Subject: [PATCH] Input: wm97xx: split out touchscreen registering

wm97xx-core does several things in it initialization :
 - touchscreen input device setup
 - battery device creation

As the wm97xx is actually a multi-function device handling an audio
codec, a touchscreen, a gpio block and an ADC, reshape the probing to
isolate what is truly input/touchscreen specific from the remaining
part.

This is only code shuffling, there is no functional change.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 drivers/input/touchscreen/wm97xx-core.c | 196 +++++++++++++++++++-------------
 1 file changed, 115 insertions(+), 81 deletions(-)

diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index c9d1c91e1887..39869ffdc4fa 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -581,27 +581,85 @@ static void wm97xx_ts_input_close(struct input_dev *idev)
 		wm->codec->acc_enable(wm, 0);
 }
 
-static int wm97xx_probe(struct device *dev)
+static int wm97xx_register_touch(struct wm97xx *wm)
 {
-	struct wm97xx *wm;
-	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
-	int ret = 0, id = 0;
+	struct wm97xx_pdata *pdata = dev_get_platdata(wm->dev);
+	int ret;
 
-	wm = kzalloc(sizeof(struct wm97xx), GFP_KERNEL);
-	if (!wm)
+	wm->input_dev = devm_input_allocate_device(wm->dev);
+	if (wm->input_dev == NULL)
 		return -ENOMEM;
-	mutex_init(&wm->codec_mutex);
 
-	wm->dev = dev;
-	dev_set_drvdata(dev, wm);
-	wm->ac97 = to_ac97_t(dev);
+	/* set up touch configuration */
+	wm->input_dev->name = "wm97xx touchscreen";
+	wm->input_dev->phys = "wm97xx";
+	wm->input_dev->open = wm97xx_ts_input_open;
+	wm->input_dev->close = wm97xx_ts_input_close;
+
+	__set_bit(EV_ABS, wm->input_dev->evbit);
+	__set_bit(EV_KEY, wm->input_dev->evbit);
+	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
+
+	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
+			     abs_x[2], 0);
+	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
+			     abs_y[2], 0);
+	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
+			     abs_p[2], 0);
+
+	input_set_drvdata(wm->input_dev, wm);
+	wm->input_dev->dev.parent = wm->dev;
+
+	ret = input_register_device(wm->input_dev);
+	if (ret)
+		return ret;
+
+	/*
+	 * register our extended touch device (for machine specific
+	 * extensions)
+	 */
+	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
+	if (!wm->touch_dev) {
+		ret = -ENOMEM;
+		goto touch_err;
+	}
+	platform_set_drvdata(wm->touch_dev, wm);
+	wm->touch_dev->dev.parent = wm->dev;
+	wm->touch_dev->dev.platform_data = pdata;
+	ret = platform_device_add(wm->touch_dev);
+	if (ret < 0)
+		goto touch_reg_err;
+
+	return 0;
+touch_reg_err:
+	platform_device_put(wm->touch_dev);
+touch_err:
+	input_unregister_device(wm->input_dev);
+	wm->input_dev = NULL;
+
+	return ret;
+}
+
+static void wm97xx_unregister_touch(struct wm97xx *wm)
+{
+	platform_device_unregister(wm->touch_dev);
+	input_unregister_device(wm->input_dev);
+	wm->input_dev = NULL;
+}
+
+static int _wm97xx_probe(struct wm97xx *wm)
+{
+	int id = 0;
+
+	mutex_init(&wm->codec_mutex);
+	dev_set_drvdata(wm->dev, wm);
 
 	/* check that we have a supported codec */
 	id = wm97xx_reg_read(wm, AC97_VENDOR_ID1);
 	if (id != WM97XX_ID1) {
-		dev_err(dev, "Device with vendor %04x is not a wm97xx\n", id);
-		ret = -ENODEV;
-		goto alloc_err;
+		dev_err(wm->dev,
+			"Device with vendor %04x is not a wm97xx\n", id);
+		return -ENODEV;
 	}
 
 	wm->id = wm97xx_reg_read(wm, AC97_VENDOR_ID2);
@@ -629,8 +687,7 @@ static int wm97xx_probe(struct device *dev)
 	default:
 		dev_err(wm->dev, "Support for wm97%02x not compiled in.\n",
 			wm->id & 0xff);
-		ret = -ENODEV;
-		goto alloc_err;
+		return -ENODEV;
 	}
 
 	/* set up physical characteristics */
@@ -644,79 +701,58 @@ static int wm97xx_probe(struct device *dev)
 	wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
 	wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
 
-	wm->input_dev = input_allocate_device();
-	if (wm->input_dev == NULL) {
-		ret = -ENOMEM;
-		goto alloc_err;
-	}
-
-	/* set up touch configuration */
-	wm->input_dev->name = "wm97xx touchscreen";
-	wm->input_dev->phys = "wm97xx";
-	wm->input_dev->open = wm97xx_ts_input_open;
-	wm->input_dev->close = wm97xx_ts_input_close;
-
-	__set_bit(EV_ABS, wm->input_dev->evbit);
-	__set_bit(EV_KEY, wm->input_dev->evbit);
-	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
-
-	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
-			     abs_x[2], 0);
-	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
-			     abs_y[2], 0);
-	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
-			     abs_p[2], 0);
+	return wm97xx_register_touch(wm);
+}
 
-	input_set_drvdata(wm->input_dev, wm);
-	wm->input_dev->dev.parent = dev;
+static void wm97xx_remove_battery(struct wm97xx *wm)
+{
+	platform_device_unregister(wm->battery_dev);
+}
 
-	ret = input_register_device(wm->input_dev);
-	if (ret < 0)
-		goto dev_alloc_err;
+static int wm97xx_add_battery(struct wm97xx *wm,
+			      struct wm97xx_batt_pdata *pdata)
+{
+	int ret;
 
-	/* register our battery device */
 	wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
-	if (!wm->battery_dev) {
-		ret = -ENOMEM;
-		goto batt_err;
-	}
+	if (!wm->battery_dev)
+		return -ENOMEM;
+
 	platform_set_drvdata(wm->battery_dev, wm);
-	wm->battery_dev->dev.parent = dev;
-	wm->battery_dev->dev.platform_data = pdata ? pdata->batt_pdata : NULL;
+	wm->battery_dev->dev.parent = wm->dev;
+	wm->battery_dev->dev.platform_data = pdata;
 	ret = platform_device_add(wm->battery_dev);
-	if (ret < 0)
-		goto batt_reg_err;
+	if (ret)
+		platform_device_put(wm->battery_dev);
 
-	/* register our extended touch device (for machine specific
-	 * extensions) */
-	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
-	if (!wm->touch_dev) {
-		ret = -ENOMEM;
-		goto touch_err;
-	}
-	platform_set_drvdata(wm->touch_dev, wm);
-	wm->touch_dev->dev.parent = dev;
-	wm->touch_dev->dev.platform_data = pdata;
-	ret = platform_device_add(wm->touch_dev);
+	return ret;
+}
+
+static int wm97xx_probe(struct device *dev)
+{
+	struct wm97xx *wm;
+	int ret;
+	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
+
+	wm = devm_kzalloc(dev, sizeof(struct wm97xx), GFP_KERNEL);
+	if (!wm)
+		return -ENOMEM;
+
+	wm->dev = dev;
+	wm->ac97 = to_ac97_t(dev);
+
+	ret =  _wm97xx_probe(wm);
+	if (ret)
+		return ret;
+
+	ret = wm97xx_add_battery(wm, pdata ? pdata->batt_pdata : NULL);
 	if (ret < 0)
-		goto touch_reg_err;
+		goto batt_err;
 
 	return ret;
 
- touch_reg_err:
-	platform_device_put(wm->touch_dev);
- touch_err:
-	platform_device_del(wm->battery_dev);
- batt_reg_err:
-	platform_device_put(wm->battery_dev);
- batt_err:
-	input_unregister_device(wm->input_dev);
-	wm->input_dev = NULL;
- dev_alloc_err:
-	input_free_device(wm->input_dev);
- alloc_err:
-	kfree(wm);
-
+batt_err:
+	wm97xx_unregister_touch(wm);
 	return ret;
 }
 
@@ -724,10 +760,8 @@ static int wm97xx_remove(struct device *dev)
 {
 	struct wm97xx *wm = dev_get_drvdata(dev);
 
-	platform_device_unregister(wm->battery_dev);
-	platform_device_unregister(wm->touch_dev);
-	input_unregister_device(wm->input_dev);
-	kfree(wm);
+	wm97xx_remove_battery(wm);
+	wm97xx_unregister_touch(wm);
 
 	return 0;
 }
-- 
2.14.1


^ permalink raw reply related	[flat|nested] 60+ messages in thread
* Applied "Input: wm97xx: split out touchscreen registering" to the asoc tree
@ 2017-09-19 16:11     ` Mark Brown
  0 siblings, 0 replies; 60+ messages in thread
From: Mark Brown @ 2017-09-19 16:11 UTC (permalink / raw)
  To: linux-arm-kernel

The patch

   Input: wm97xx: split out touchscreen registering

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From c72f61e7407335dfa5fe5947827777b1429cd883 Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Wed, 13 Sep 2017 21:37:16 +0200
Subject: [PATCH] Input: wm97xx: split out touchscreen registering

wm97xx-core does several things in it initialization :
 - touchscreen input device setup
 - battery device creation

As the wm97xx is actually a multi-function device handling an audio
codec, a touchscreen, a gpio block and an ADC, reshape the probing to
isolate what is truly input/touchscreen specific from the remaining
part.

This is only code shuffling, there is no functional change.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 drivers/input/touchscreen/wm97xx-core.c | 196 +++++++++++++++++++-------------
 1 file changed, 115 insertions(+), 81 deletions(-)

diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index c9d1c91e1887..39869ffdc4fa 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -581,27 +581,85 @@ static void wm97xx_ts_input_close(struct input_dev *idev)
 		wm->codec->acc_enable(wm, 0);
 }
 
-static int wm97xx_probe(struct device *dev)
+static int wm97xx_register_touch(struct wm97xx *wm)
 {
-	struct wm97xx *wm;
-	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
-	int ret = 0, id = 0;
+	struct wm97xx_pdata *pdata = dev_get_platdata(wm->dev);
+	int ret;
 
-	wm = kzalloc(sizeof(struct wm97xx), GFP_KERNEL);
-	if (!wm)
+	wm->input_dev = devm_input_allocate_device(wm->dev);
+	if (wm->input_dev == NULL)
 		return -ENOMEM;
-	mutex_init(&wm->codec_mutex);
 
-	wm->dev = dev;
-	dev_set_drvdata(dev, wm);
-	wm->ac97 = to_ac97_t(dev);
+	/* set up touch configuration */
+	wm->input_dev->name = "wm97xx touchscreen";
+	wm->input_dev->phys = "wm97xx";
+	wm->input_dev->open = wm97xx_ts_input_open;
+	wm->input_dev->close = wm97xx_ts_input_close;
+
+	__set_bit(EV_ABS, wm->input_dev->evbit);
+	__set_bit(EV_KEY, wm->input_dev->evbit);
+	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
+
+	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
+			     abs_x[2], 0);
+	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
+			     abs_y[2], 0);
+	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
+			     abs_p[2], 0);
+
+	input_set_drvdata(wm->input_dev, wm);
+	wm->input_dev->dev.parent = wm->dev;
+
+	ret = input_register_device(wm->input_dev);
+	if (ret)
+		return ret;
+
+	/*
+	 * register our extended touch device (for machine specific
+	 * extensions)
+	 */
+	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
+	if (!wm->touch_dev) {
+		ret = -ENOMEM;
+		goto touch_err;
+	}
+	platform_set_drvdata(wm->touch_dev, wm);
+	wm->touch_dev->dev.parent = wm->dev;
+	wm->touch_dev->dev.platform_data = pdata;
+	ret = platform_device_add(wm->touch_dev);
+	if (ret < 0)
+		goto touch_reg_err;
+
+	return 0;
+touch_reg_err:
+	platform_device_put(wm->touch_dev);
+touch_err:
+	input_unregister_device(wm->input_dev);
+	wm->input_dev = NULL;
+
+	return ret;
+}
+
+static void wm97xx_unregister_touch(struct wm97xx *wm)
+{
+	platform_device_unregister(wm->touch_dev);
+	input_unregister_device(wm->input_dev);
+	wm->input_dev = NULL;
+}
+
+static int _wm97xx_probe(struct wm97xx *wm)
+{
+	int id = 0;
+
+	mutex_init(&wm->codec_mutex);
+	dev_set_drvdata(wm->dev, wm);
 
 	/* check that we have a supported codec */
 	id = wm97xx_reg_read(wm, AC97_VENDOR_ID1);
 	if (id != WM97XX_ID1) {
-		dev_err(dev, "Device with vendor %04x is not a wm97xx\n", id);
-		ret = -ENODEV;
-		goto alloc_err;
+		dev_err(wm->dev,
+			"Device with vendor %04x is not a wm97xx\n", id);
+		return -ENODEV;
 	}
 
 	wm->id = wm97xx_reg_read(wm, AC97_VENDOR_ID2);
@@ -629,8 +687,7 @@ static int wm97xx_probe(struct device *dev)
 	default:
 		dev_err(wm->dev, "Support for wm97%02x not compiled in.\n",
 			wm->id & 0xff);
-		ret = -ENODEV;
-		goto alloc_err;
+		return -ENODEV;
 	}
 
 	/* set up physical characteristics */
@@ -644,79 +701,58 @@ static int wm97xx_probe(struct device *dev)
 	wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
 	wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
 
-	wm->input_dev = input_allocate_device();
-	if (wm->input_dev == NULL) {
-		ret = -ENOMEM;
-		goto alloc_err;
-	}
-
-	/* set up touch configuration */
-	wm->input_dev->name = "wm97xx touchscreen";
-	wm->input_dev->phys = "wm97xx";
-	wm->input_dev->open = wm97xx_ts_input_open;
-	wm->input_dev->close = wm97xx_ts_input_close;
-
-	__set_bit(EV_ABS, wm->input_dev->evbit);
-	__set_bit(EV_KEY, wm->input_dev->evbit);
-	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
-
-	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
-			     abs_x[2], 0);
-	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
-			     abs_y[2], 0);
-	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
-			     abs_p[2], 0);
+	return wm97xx_register_touch(wm);
+}
 
-	input_set_drvdata(wm->input_dev, wm);
-	wm->input_dev->dev.parent = dev;
+static void wm97xx_remove_battery(struct wm97xx *wm)
+{
+	platform_device_unregister(wm->battery_dev);
+}
 
-	ret = input_register_device(wm->input_dev);
-	if (ret < 0)
-		goto dev_alloc_err;
+static int wm97xx_add_battery(struct wm97xx *wm,
+			      struct wm97xx_batt_pdata *pdata)
+{
+	int ret;
 
-	/* register our battery device */
 	wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
-	if (!wm->battery_dev) {
-		ret = -ENOMEM;
-		goto batt_err;
-	}
+	if (!wm->battery_dev)
+		return -ENOMEM;
+
 	platform_set_drvdata(wm->battery_dev, wm);
-	wm->battery_dev->dev.parent = dev;
-	wm->battery_dev->dev.platform_data = pdata ? pdata->batt_pdata : NULL;
+	wm->battery_dev->dev.parent = wm->dev;
+	wm->battery_dev->dev.platform_data = pdata;
 	ret = platform_device_add(wm->battery_dev);
-	if (ret < 0)
-		goto batt_reg_err;
+	if (ret)
+		platform_device_put(wm->battery_dev);
 
-	/* register our extended touch device (for machine specific
-	 * extensions) */
-	wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
-	if (!wm->touch_dev) {
-		ret = -ENOMEM;
-		goto touch_err;
-	}
-	platform_set_drvdata(wm->touch_dev, wm);
-	wm->touch_dev->dev.parent = dev;
-	wm->touch_dev->dev.platform_data = pdata;
-	ret = platform_device_add(wm->touch_dev);
+	return ret;
+}
+
+static int wm97xx_probe(struct device *dev)
+{
+	struct wm97xx *wm;
+	int ret;
+	struct wm97xx_pdata *pdata = dev_get_platdata(dev);
+
+	wm = devm_kzalloc(dev, sizeof(struct wm97xx), GFP_KERNEL);
+	if (!wm)
+		return -ENOMEM;
+
+	wm->dev = dev;
+	wm->ac97 = to_ac97_t(dev);
+
+	ret =  _wm97xx_probe(wm);
+	if (ret)
+		return ret;
+
+	ret = wm97xx_add_battery(wm, pdata ? pdata->batt_pdata : NULL);
 	if (ret < 0)
-		goto touch_reg_err;
+		goto batt_err;
 
 	return ret;
 
- touch_reg_err:
-	platform_device_put(wm->touch_dev);
- touch_err:
-	platform_device_del(wm->battery_dev);
- batt_reg_err:
-	platform_device_put(wm->battery_dev);
- batt_err:
-	input_unregister_device(wm->input_dev);
-	wm->input_dev = NULL;
- dev_alloc_err:
-	input_free_device(wm->input_dev);
- alloc_err:
-	kfree(wm);
-
+batt_err:
+	wm97xx_unregister_touch(wm);
 	return ret;
 }
 
@@ -724,10 +760,8 @@ static int wm97xx_remove(struct device *dev)
 {
 	struct wm97xx *wm = dev_get_drvdata(dev);
 
-	platform_device_unregister(wm->battery_dev);
-	platform_device_unregister(wm->touch_dev);
-	input_unregister_device(wm->input_dev);
-	kfree(wm);
+	wm97xx_remove_battery(wm);
+	wm97xx_unregister_touch(wm);
 
 	return 0;
 }
-- 
2.14.1

^ permalink raw reply related	[flat|nested] 60+ messages in thread
end of thread, other threads:[~2017-09-19 16:12 UTC | newest]

Thread overview: 60+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-06-19  7:26 [PATCH v2 00/12] AC97 device/driver model revamp Robert Jarzmik
2017-06-19  7:26 ` Robert Jarzmik
2017-06-19  7:26 ` [PATCH v2 01/12] ALSA: ac97: add an ac97 bus Robert Jarzmik
2017-06-19  7:26   ` Robert Jarzmik
2017-06-19  7:26 ` [PATCH v2 02/12] ASoC: add new ac97 bus support Robert Jarzmik
2017-06-19  7:26   ` Robert Jarzmik
2017-06-19  7:27 ` [PATCH v2 03/12] ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-09-04 17:25   ` Applied "ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnostic" to the asoc tree Mark Brown
2017-09-04 17:25     ` Mark Brown
2017-09-04 17:25     ` Mark Brown
2017-06-19  7:27 ` [PATCH v2 04/12] Input: wm97xx: split out touchscreen registering Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-06-20  2:43   ` Dmitry Torokhov
2017-06-20  2:43     ` Dmitry Torokhov
2017-09-19 16:11   ` Applied "Input: wm97xx: split out touchscreen registering" to the asoc tree Mark Brown
2017-09-19 16:11     ` Mark Brown
2017-09-19 16:11     ` Mark Brown
2017-06-19  7:27 ` [PATCH v2 05/12] mfd: wm97xx-core: core support for wm97xx Codec Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-06-19  7:27 ` [PATCH v2 06/12] Input: wm97xx: add new AC97 bus support Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-06-20  2:44   ` Dmitry Torokhov
2017-06-20  2:44     ` Dmitry Torokhov
2017-06-20  2:44     ` Dmitry Torokhov
2017-06-19  7:27 ` [PATCH v2 07/12] ASoC: wm9713: add ac97 new " Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-06-19  7:27 ` [PATCH v2 08/12] ASoC: wm9712: " Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-06-19  7:27 ` [PATCH v2 09/12] ASoC: wm9705: add private structure Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-09-19 16:11   ` Applied "ASoC: wm9705: add private structure" to the asoc tree Mark Brown
2017-09-19 16:11     ` Mark Brown
2017-09-19 16:11     ` Mark Brown
2017-06-19  7:27 ` [PATCH v2 10/12] ASoC: wm9705: add ac97 new bus support Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-06-19  7:27 ` [PATCH v2 11/12] ASoC: pxa: switch to new ac97 " Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-06-19  7:27 ` [PATCH v2 12/12] ASoC: Fix use-after-free at card unregistration Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-06-19  7:27   ` Robert Jarzmik
2017-06-19  9:25   ` Takashi Iwai
2017-06-19  9:25     ` Takashi Iwai
2017-06-19  9:25     ` Takashi Iwai
2017-06-19 11:57     ` Robert Jarzmik
2017-06-19 11:57       ` Robert Jarzmik
2017-06-19 11:57       ` Robert Jarzmik
2017-06-28 19:53       ` [alsa-devel] " Mark Brown
2017-06-28 19:53         ` Mark Brown
2017-06-28 19:53         ` Mark Brown
2017-06-28 22:03         ` [alsa-devel] " Robert Jarzmik
2017-06-28 22:03           ` Robert Jarzmik
2017-06-28 22:03           ` Robert Jarzmik
2017-06-30 11:56           ` [alsa-devel] " Mark Brown
2017-06-30 11:56             ` Mark Brown
2017-06-30 11:56             ` Mark Brown
2017-06-30 15:06             ` [alsa-devel] " Robert Jarzmik
2017-06-30 15:06               ` Robert Jarzmik

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