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* [PATCH v8 0/8] Add Skyworks SKY81452 device drivers
@ 2014-11-25  7:02 ` gyungoh-Re5JQEeQqe8AvxtiuMwx3w
  0 siblings, 0 replies; 17+ messages in thread
From: gyungoh @ 2014-11-25  7:02 UTC (permalink / raw)
  To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood
  Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt,
	mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason,
	shawn.guo, treding, florian.vaussard, trivial, linux, andrew,
	jic23

From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

This patch set includes regulator and backlight driver for SKY81452.
Also it includes documents for device tree and module.
The initial version of sky81452-regulator was applied. Fo this, incremental
patches are included.

v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changed the DT parsing of regulator using regulator_node and of_match

v7:
Modified licensing text to GPLv2
Splitted Kconfig renaming from DT patch

v6:
Added new line character at the end of line of dev_err()

v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Modified sky81452-regulator to return EINVAL when of_node is NULL
Move sky81452-backlight.h to include/linux/platform_data

v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Removed calling to backlight_device_unregister() in sky81452-backlight

v3:
Cleaned-up DBG messages
Cleaned-up DT
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Modified sky81452-regulator to return ENODATA when of_node is NULL

v2:
Split the patches for each sub-system
Added 'reg' attribute for I2C address in device tree documents
Added 'compatible' attribute in child drivers
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors.
Added vendor prefix for Skyworks Solutions, Inc.
Add SKY81452 to the Trivial Devices list

Gyungoh Yoo (8):
  mfd: Add support for Skyworks SKY81452 driver
  backlight: Add support Skyworks SKY81452 backlight driver
  devicetree: mfd: Add new SKY81452 mfd binding
  devicetree: backlight: Add new SKY81452 backlight binding
  devicetree: Add vendor prefix for Skyworks Solutions, Inc.
  devicetree: i2c: Add SKY81452 to the Trivial Devices list
  regulator: sky81452: Modify Device Tree structure
  devicetree: regulator: sky81452: Modify Device Tree structure

 .../devicetree/bindings/i2c/trivial-devices.txt    |   1 +
 Documentation/devicetree/bindings/mfd/sky81452.txt |  36 +++
 .../bindings/regulator/sky81452-regulator.txt      |  10 +-
 .../devicetree/bindings/vendor-prefixes.txt        |   1 +
 .../video/backlight/sky81452-backlight.txt         |  29 ++
 drivers/mfd/Kconfig                                |  12 +
 drivers/mfd/Makefile                               |   1 +
 drivers/mfd/sky81452.c                             | 108 +++++++
 drivers/regulator/sky81452-regulator.c             |  46 +--
 drivers/video/backlight/Kconfig                    |  10 +
 drivers/video/backlight/Makefile                   |   1 +
 drivers/video/backlight/sky81452-backlight.c       | 340 +++++++++++++++++++++
 include/linux/mfd/sky81452.h                       |  31 ++
 include/linux/platform_data/sky81452-backlight.h   |  46 +++
 14 files changed, 631 insertions(+), 41 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
 create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
 create mode 100644 drivers/mfd/sky81452.c
 create mode 100644 drivers/video/backlight/sky81452-backlight.c
 create mode 100644 include/linux/mfd/sky81452.h
 create mode 100644 include/linux/platform_data/sky81452-backlight.h

-- 
1.9.1


^ permalink raw reply	[flat|nested] 17+ messages in thread

* [PATCH v8 0/8] Add Skyworks SKY81452 device drivers
@ 2014-11-25  7:02 ` gyungoh-Re5JQEeQqe8AvxtiuMwx3w
  0 siblings, 0 replies; 17+ messages in thread
From: gyungoh-Re5JQEeQqe8AvxtiuMwx3w @ 2014-11-25  7:02 UTC (permalink / raw)
  To: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A,
	jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w,
	broonie-DgEjT+Ai2ygdnm+yROfE0A, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w
  Cc: jack.yoo-tjhQNA90jdKqndwCJWfcng,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA,
	devicetree-u79uwXL29TY76Z2rM5mHXA,
	grant.likely-QSEj5FYQhm4dnm+yROfE0A,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8,
	ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg,
	galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8,
	heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA,
	shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA,
	florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A,
	linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY,
	jic23-DgEjT+Ai2ygdnm+yROfE0A

From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>

This patch set includes regulator and backlight driver for SKY81452.
Also it includes documents for device tree and module.
The initial version of sky81452-regulator was applied. Fo this, incremental
patches are included.

v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changed the DT parsing of regulator using regulator_node and of_match

v7:
Modified licensing text to GPLv2
Splitted Kconfig renaming from DT patch

v6:
Added new line character at the end of line of dev_err()

v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Modified sky81452-regulator to return EINVAL when of_node is NULL
Move sky81452-backlight.h to include/linux/platform_data

v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Removed calling to backlight_device_unregister() in sky81452-backlight

v3:
Cleaned-up DBG messages
Cleaned-up DT
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Modified sky81452-regulator to return ENODATA when of_node is NULL

v2:
Split the patches for each sub-system
Added 'reg' attribute for I2C address in device tree documents
Added 'compatible' attribute in child drivers
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors.
Added vendor prefix for Skyworks Solutions, Inc.
Add SKY81452 to the Trivial Devices list

Gyungoh Yoo (8):
  mfd: Add support for Skyworks SKY81452 driver
  backlight: Add support Skyworks SKY81452 backlight driver
  devicetree: mfd: Add new SKY81452 mfd binding
  devicetree: backlight: Add new SKY81452 backlight binding
  devicetree: Add vendor prefix for Skyworks Solutions, Inc.
  devicetree: i2c: Add SKY81452 to the Trivial Devices list
  regulator: sky81452: Modify Device Tree structure
  devicetree: regulator: sky81452: Modify Device Tree structure

 .../devicetree/bindings/i2c/trivial-devices.txt    |   1 +
 Documentation/devicetree/bindings/mfd/sky81452.txt |  36 +++
 .../bindings/regulator/sky81452-regulator.txt      |  10 +-
 .../devicetree/bindings/vendor-prefixes.txt        |   1 +
 .../video/backlight/sky81452-backlight.txt         |  29 ++
 drivers/mfd/Kconfig                                |  12 +
 drivers/mfd/Makefile                               |   1 +
 drivers/mfd/sky81452.c                             | 108 +++++++
 drivers/regulator/sky81452-regulator.c             |  46 +--
 drivers/video/backlight/Kconfig                    |  10 +
 drivers/video/backlight/Makefile                   |   1 +
 drivers/video/backlight/sky81452-backlight.c       | 340 +++++++++++++++++++++
 include/linux/mfd/sky81452.h                       |  31 ++
 include/linux/platform_data/sky81452-backlight.h   |  46 +++
 14 files changed, 631 insertions(+), 41 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
 create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
 create mode 100644 drivers/mfd/sky81452.c
 create mode 100644 drivers/video/backlight/sky81452-backlight.c
 create mode 100644 include/linux/mfd/sky81452.h
 create mode 100644 include/linux/platform_data/sky81452-backlight.h

-- 
1.9.1

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^ permalink raw reply	[flat|nested] 17+ messages in thread

* [PATCH v8 1/8] mfd: Add support for Skyworks SKY81452 driver
  2014-11-25  7:02 ` gyungoh-Re5JQEeQqe8AvxtiuMwx3w
  (?)
@ 2014-11-25  7:02 ` gyungoh
  -1 siblings, 0 replies; 17+ messages in thread
From: gyungoh @ 2014-11-25  7:02 UTC (permalink / raw)
  To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood
  Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt,
	mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason,
	shawn.guo, treding, florian.vaussard, trivial, linux, andrew,
	jic23

From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
---
Changes v8:
Nothing

Changes v7:
Modified licensing text to GPLv2

Changes v6:
Added new line character at the end of line of dev_err()

Changes v5:
Move sky81452-backlight.h to include/linux/platform_data

Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2

Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages

Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors

 drivers/mfd/Kconfig          |  12 +++++
 drivers/mfd/Makefile         |   1 +
 drivers/mfd/sky81452.c       | 108 +++++++++++++++++++++++++++++++++++++++++++
 include/linux/mfd/sky81452.h |  31 +++++++++++++
 4 files changed, 152 insertions(+)
 create mode 100644 drivers/mfd/sky81452.c
 create mode 100644 include/linux/mfd/sky81452.h

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1456ea7..a54244c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -693,6 +693,18 @@ config MFD_SM501_GPIO
 	 lines on the SM501. The platform data is used to supply the
 	 base number for the first GPIO line to register.
 
+config MFD_SKY81452
+	tristate "Skyworks Solutions SKY81452"
+	select MFD_CORE
+	select REGMAP_I2C
+	depends on I2C
+	help
+	  This is the core driver for the Skyworks SKY81452 backlight and
+	  voltage regulator device.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called sky81452.
+
 config MFD_SMSC
        bool "SMSC ECE1099 series chips"
        depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 8bd54b1..d9683ea 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X)	+= stw481x.o
 obj-$(CONFIG_MFD_IPAQ_MICRO)	+= ipaq-micro.o
 obj-$(CONFIG_MFD_MENF21BMC)	+= menf21bmc.o
 obj-$(CONFIG_MFD_HI6421_PMIC)	+= hi6421-pmic-core.o
+obj-$(CONFIG_MFD_SKY81452)		+= sky81452.o
 
 intel-soc-pmic-objs		:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
 obj-$(CONFIG_INTEL_SOC_PMIC)	+= intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 0000000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c	SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com>
+ *
+ * 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 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/sky81452.h>
+
+static const struct regmap_config sky81452_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+				const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+	struct mfd_cell cells[2];
+	struct regmap *regmap;
+	int ret;
+
+	if (!pdata) {
+		pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+		if (!pdata)
+			return -ENOMEM;
+	}
+
+	regmap = devm_regmap_init_i2c(client, &sky81452_config);
+	if (IS_ERR(regmap)) {
+		dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap));
+		return PTR_ERR(regmap);
+	}
+
+	i2c_set_clientdata(client, regmap);
+
+	memset(cells, 0, sizeof(cells));
+	cells[0].name = "sky81452-backlight";
+	cells[0].of_compatible = "skyworks,sky81452-backlight";
+	cells[0].platform_data = pdata->bl_pdata;
+	cells[0].pdata_size = sizeof(*pdata->bl_pdata);
+	cells[1].name = "sky81452-regulator";
+	cells[1].platform_data = pdata->regulator_init_data;
+	cells[1].pdata_size = sizeof(*pdata->regulator_init_data);
+
+	ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+	if (ret)
+		dev_err(dev, "failed to add child devices. err=%d\n", ret);
+
+	return ret;
+}
+
+static int sky81452_remove(struct i2c_client *client)
+{
+	mfd_remove_devices(&client->dev);
+	return 0;
+}
+
+static const struct i2c_device_id sky81452_ids[] = {
+	{ "sky81452" },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, sky81452_ids);
+
+#ifdef CONFIG_OF
+static const struct of_device_id sky81452_of_match[] = {
+	{ .compatible = "skyworks,sky81452", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, sky81452_of_match);
+#endif
+
+static struct i2c_driver sky81452_driver = {
+	.driver = {
+		.name = "sky81452",
+		.of_match_table = of_match_ptr(sky81452_of_match),
+	},
+	.probe = sky81452_probe,
+	.remove = sky81452_remove,
+	.id_table = sky81452_ids,
+};
+
+module_i2c_driver(sky81452_driver);
+
+MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver");
+MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/sky81452.h b/include/linux/mfd/sky81452.h
new file mode 100644
index 0000000..b0925fa
--- /dev/null
+++ b/include/linux/mfd/sky81452.h
@@ -0,0 +1,31 @@
+/*
+ * sky81452.h	SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com>
+ *
+ * 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 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _SKY81452_H
+#define _SKY81452_H
+
+#include <linux/platform_data/sky81452-backlight.h>
+#include <linux/regulator/machine.h>
+
+struct sky81452_platform_data {
+	struct sky81452_bl_platform_data *bl_pdata;
+	struct regulator_init_data *regulator_init_data;
+};
+
+#endif
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH v8 2/8] backlight: Add support Skyworks SKY81452 backlight driver
  2014-11-25  7:02 ` gyungoh-Re5JQEeQqe8AvxtiuMwx3w
  (?)
  (?)
@ 2014-11-25  7:03 ` gyungoh
  -1 siblings, 0 replies; 17+ messages in thread
From: gyungoh @ 2014-11-25  7:03 UTC (permalink / raw)
  To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood
  Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt,
	mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason,
	shawn.guo, treding, florian.vaussard, trivial, linux, andrew,
	jic23

From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com>
---
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO

Changes v7:
Modified licensing text to GPLv2

Changes v6:
Added new line character at the end of line of dev_err()

Changes v5:
Move sky81452-backlight.h to include/linux/platform_data

Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2

Changes v3:
Modified DBG messages

Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors

 drivers/video/backlight/Kconfig                  |  10 +
 drivers/video/backlight/Makefile                 |   1 +
 drivers/video/backlight/sky81452-backlight.c     | 340 +++++++++++++++++++++++
 include/linux/platform_data/sky81452-backlight.h |  46 +++
 4 files changed, 397 insertions(+)
 create mode 100644 drivers/video/backlight/sky81452-backlight.c
 create mode 100644 include/linux/platform_data/sky81452-backlight.h

diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 8d03924..2586fdd 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA
 	  If you have a Pandora console, say Y to enable the
 	  backlight driver.
 
+config BACKLIGHT_SKY81452
+	tristate "Backlight driver for SKY81452"
+	depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452
+	help
+	  If you have a Skyworks SKY81452, say Y to enable the
+	  backlight driver.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called sky81452-backlight
+
 config BACKLIGHT_TPS65217
 	tristate "TPS65217 Backlight"
 	depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA)		+= pandora_bl.o
 obj-$(CONFIG_BACKLIGHT_PCF50633)	+= pcf50633-backlight.o
 obj-$(CONFIG_BACKLIGHT_PWM)		+= pwm_bl.o
 obj-$(CONFIG_BACKLIGHT_SAHARA)		+= kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452)	+= sky81452-backlight.o
 obj-$(CONFIG_BACKLIGHT_TOSA)		+= tosa_bl.o
 obj-$(CONFIG_BACKLIGHT_TPS65217)	+= tps65217_bl.o
 obj-$(CONFIG_BACKLIGHT_WM831X)		+= wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 0000000..45e575f
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,340 @@
+/*
+ * sky81452-backlight.c	SKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com>
+ *
+ * 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 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/backlight.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/platform_data/sky81452-backlight.h>
+#include <linux/slab.h>
+
+/* registers */
+#define SKY81452_REG0	0x00
+#define SKY81452_REG1	0x01
+#define SKY81452_REG2	0x02
+#define SKY81452_REG4	0x04
+#define SKY81452_REG5	0x05
+
+/* bit mask */
+#define SKY81452_CS	0xFF
+#define SKY81452_EN	0x3F
+#define SKY81452_IGPW	0x20
+#define SKY81452_PWMMD	0x10
+#define SKY81452_PHASE	0x08
+#define SKY81452_ILIM	0x04
+#define SKY81452_VSHRT	0x03
+#define SKY81452_OCP	0x80
+#define SKY81452_OTMP	0x40
+#define SKY81452_SHRT	0x3F
+#define SKY81452_OPN	0x3F
+
+#define SKY81452_DEFAULT_NAME "lcd-backlight"
+#define SKY81452_MAX_BRIGHTNESS	(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+	const struct sky81452_bl_platform_data *pdata =
+			dev_get_platdata(bd->dev.parent);
+	const unsigned int brightness = (unsigned int)bd->props.brightness;
+	struct regmap *regmap = bl_get_data(bd);
+	int ret;
+
+	if (brightness > 0) {
+		ret = regmap_write(regmap, SKY81452_REG0, brightness - 1);
+		if (IS_ERR_VALUE(ret))
+			return ret;
+
+		return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN,
+					pdata->enable << CTZ(SKY81452_EN));
+	}
+
+	return regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN, 0);
+}
+
+static int sky81452_bl_get_brightness(struct backlight_device *bd)
+{
+	return bd->props.brightness;
+}
+
+static const struct backlight_ops sky81452_bl_ops = {
+	.update_status = sky81452_bl_update_status,
+	.get_brightness = sky81452_bl_get_brightness,
+};
+
+static ssize_t sky81452_bl_store_enable(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct regmap *regmap = bl_get_data(to_backlight_device(dev));
+	unsigned long value;
+	int ret;
+
+	ret = kstrtoul(buf, 16, &value);
+	if (IS_ERR_VALUE(ret))
+		return ret;
+
+	ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN,
+					value << CTZ(SKY81452_EN));
+	if (IS_ERR_VALUE(ret))
+		return ret;
+
+	return count;
+}
+
+static ssize_t sky81452_bl_show_open_short(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct regmap *regmap = bl_get_data(to_backlight_device(dev));
+	unsigned int reg, value = 0;
+	char tmp[3];
+	int i, ret;
+
+	reg = !strcmp(attr->attr.name, "open") ? SKY81452_REG5 : SKY81452_REG4;
+	ret = regmap_read(regmap, reg, &value);
+	if (IS_ERR_VALUE(ret))
+		return ret;
+
+	if (value & SKY81452_SHRT) {
+		*buf = 0;
+		for (i = 0; i < 6; i++) {
+			if (value & 0x01) {
+				sprintf(tmp, "%d ", i + 1);
+				strcat(buf, tmp);
+			}
+			value >>= 1;
+		}
+		strcat(buf, "\n");
+	} else {
+		strcpy(buf, "none\n");
+	}
+
+	return strlen(buf);
+}
+
+static ssize_t sky81452_bl_show_fault(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct regmap *regmap = bl_get_data(to_backlight_device(dev));
+	unsigned int value = 0;
+	int ret;
+
+	ret = regmap_read(regmap, SKY81452_REG4, &value);
+	if (IS_ERR_VALUE(ret))
+		return ret;
+
+	*buf = 0;
+
+	if (value & SKY81452_OCP)
+		strcat(buf, "over-current ");
+
+	if (value & SKY81452_OTMP)
+		strcat(buf, "over-temperature");
+
+	strcat(buf, "\n");
+	return strlen(buf);
+}
+
+static DEVICE_ATTR(enable, S_IWGRP | S_IWUSR, NULL, sky81452_bl_store_enable);
+static DEVICE_ATTR(open, S_IRUGO, sky81452_bl_show_open_short, NULL);
+static DEVICE_ATTR(short, S_IRUGO, sky81452_bl_show_open_short, NULL);
+static DEVICE_ATTR(fault, S_IRUGO, sky81452_bl_show_fault, NULL);
+
+static struct attribute *sky81452_bl_attribute[] = {
+	&dev_attr_enable.attr,
+	&dev_attr_open.attr,
+	&dev_attr_short.attr,
+	&dev_attr_fault.attr,
+	NULL
+};
+
+static const struct attribute_group sky81452_bl_attr_group = {
+	.attrs = sky81452_bl_attribute,
+};
+
+#ifdef CONFIG_OF
+static struct sky81452_bl_platform_data *sky81452_bl_parse_dt(
+							struct device *dev)
+{
+	struct device_node *np = of_node_get(dev->of_node);
+	struct sky81452_bl_platform_data *pdata;
+	int ret;
+
+	if (!np) {
+		dev_err(dev, "backlight node not found.\n");
+		return ERR_PTR(-ENODATA);
+	}
+
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata) {
+		of_node_put(np);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	of_property_read_string(np, "name", &pdata->name);
+	pdata->ignore_pwm = of_property_read_bool(np, "skyworks,ignore-pwm");
+	pdata->dpwm_mode = of_property_read_bool(np, "skyworks,dpwm-mode");
+	pdata->phase_shift = of_property_read_bool(np, "skyworks,phase-shift");
+	pdata->gpio_enable = of_get_gpio(np, 0);
+
+	ret = of_property_read_u32(np, "skyworks,en-channels", &pdata->enable);
+	if (IS_ERR_VALUE(ret))
+		pdata->enable = SKY81452_EN >> CTZ(SKY81452_EN);
+
+	ret = of_property_read_u32(np, "skyworks,short-detection-threshold",
+			&pdata->short_detection_threshold);
+	if (IS_ERR_VALUE(ret))
+		pdata->short_detection_threshold = 7;
+
+	ret = of_property_read_u32(np, "skyworks,current-limit",
+			&pdata->boost_current_limit);
+	if (IS_ERR_VALUE(ret))
+		pdata->boost_current_limit = 2750;
+
+	of_node_put(np);
+	return pdata;
+}
+#else
+static struct sky81452_bl_platform_data *sky81452_bl_parse_dt(
+							struct device *dev)
+{
+	return ERR_PTR(-EINVAL);
+}
+#endif
+
+static int sky81452_bl_init_device(struct regmap *regmap,
+		struct sky81452_bl_platform_data *pdata)
+{
+	unsigned int value;
+
+	value = pdata->ignore_pwm ? SKY81452_IGPW : 0;
+	value |= pdata->dpwm_mode ? SKY81452_PWMMD : 0;
+	value |= pdata->phase_shift ? 0 : SKY81452_PHASE;
+
+	if (pdata->boost_current_limit == 2300)
+		value |= SKY81452_ILIM;
+	else if (pdata->boost_current_limit != 2750)
+		return -EINVAL;
+
+	if (pdata->short_detection_threshold < 4 ||
+				pdata->short_detection_threshold > 7)
+		return -EINVAL;
+	value |= (7 - pdata->short_detection_threshold) << CTZ(SKY81452_VSHRT);
+
+	return regmap_write(regmap, SKY81452_REG2, value);
+}
+
+static int sky81452_bl_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct regmap *regmap = dev_get_drvdata(dev->parent);
+	struct sky81452_bl_platform_data *pdata = dev_get_platdata(dev);
+	struct backlight_device *bd;
+	struct backlight_properties props;
+	const char *name;
+	int ret;
+
+	if (!pdata) {
+		pdata = sky81452_bl_parse_dt(dev);
+		if (IS_ERR(pdata))
+			return PTR_ERR(pdata);
+	}
+
+	if (gpio_is_valid(pdata->gpio_enable)) {
+		ret = devm_gpio_request_one(dev, pdata->gpio_enable,
+					GPIOF_OUT_INIT_HIGH, "sky81452-en");
+		if (IS_ERR_VALUE(ret)) {
+			dev_err(dev, "failed to request GPIO. err=%d\n", ret);
+			return ret;
+		}
+	}
+
+	ret = sky81452_bl_init_device(regmap, pdata);
+	if (IS_ERR_VALUE(ret)) {
+		dev_err(dev, "failed to initialize. err=%d\n", ret);
+		return ret;
+	}
+
+	memset(&props, 0, sizeof(props));
+	props.max_brightness = SKY81452_MAX_BRIGHTNESS,
+	name = pdata->name ? pdata->name : SKY81452_DEFAULT_NAME;
+	bd = devm_backlight_device_register(dev, name, dev, regmap,
+						&sky81452_bl_ops, &props);
+	if (IS_ERR(bd)) {
+		dev_err(dev, "failed to register. err=%ld\n", PTR_ERR(bd));
+		return PTR_ERR(bd);
+	}
+
+	platform_set_drvdata(pdev, bd);
+
+	ret  = sysfs_create_group(&bd->dev.kobj, &sky81452_bl_attr_group);
+	if (IS_ERR_VALUE(ret)) {
+		dev_err(dev, "failed to create attribute. err=%d\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int sky81452_bl_remove(struct platform_device *pdev)
+{
+	const struct sky81452_bl_platform_data *pdata =
+						dev_get_platdata(&pdev->dev);
+	struct backlight_device *bd = platform_get_drvdata(pdev);
+
+	sysfs_remove_group(&bd->dev.kobj, &sky81452_bl_attr_group);
+
+	bd->props.power = FB_BLANK_UNBLANK;
+	bd->props.brightness = 0;
+	backlight_update_status(bd);
+
+	if (gpio_is_valid(pdata->gpio_enable))
+		gpio_set_value_cansleep(pdata->gpio_enable, 0);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id sky81452_bl_of_match[] = {
+	{ .compatible = "skyworks,sky81452-backlight", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, sky81452_bl_of_match);
+#endif
+
+static struct platform_driver sky81452_bl_driver = {
+	.driver = {
+		.name = "sky81452-backlight",
+		.of_match_table = of_match_ptr(sky81452_bl_of_match),
+	},
+	.probe = sky81452_bl_probe,
+	.remove = sky81452_bl_remove,
+};
+
+module_platform_driver(sky81452_bl_driver);
+
+MODULE_DESCRIPTION("Skyworks SKY81452 backlight driver");
+MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/platform_data/sky81452-backlight.h b/include/linux/platform_data/sky81452-backlight.h
new file mode 100644
index 0000000..1231e9b
--- /dev/null
+++ b/include/linux/platform_data/sky81452-backlight.h
@@ -0,0 +1,46 @@
+/*
+ * sky81452.h	SKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com>
+ *
+ * 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 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _SKY81452_BACKLIGHT_H
+#define _SKY81452_BACKLIGHT_H
+
+/**
+ * struct sky81452_platform_data
+ * @name:	backlight driver name.
+		If it is not defined, default name is lcd-backlight.
+ * @gpio_enable:GPIO number which control EN pin
+ * @enable:	Enable mask for current sink channel 1, 2, 3, 4, 5 and 6.
+ * @ignore_pwm:	true if DPWMI should be ignored.
+ * @dpwm_mode:	true is DPWM dimming mode, otherwise Analog dimming mode.
+ * @phase_shift:true is phase shift mode.
+ * @short_detecion_threshold:	It should be one of 4, 5, 6 and 7V.
+ * @boost_current_limit:	It should be one of 2300, 2750mA.
+ */
+struct sky81452_bl_platform_data {
+	const char *name;
+	int gpio_enable;
+	unsigned int enable;
+	bool ignore_pwm;
+	bool dpwm_mode;
+	bool phase_shift;
+	unsigned int short_detection_threshold;
+	unsigned int boost_current_limit;
+};
+
+#endif
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH v8 3/8] devicetree: mfd: Add new SKY81452 mfd binding
  2014-11-25  7:02 ` gyungoh-Re5JQEeQqe8AvxtiuMwx3w
                   ` (2 preceding siblings ...)
  (?)
@ 2014-11-25  7:03 ` gyungoh
  -1 siblings, 0 replies; 17+ messages in thread
From: gyungoh @ 2014-11-25  7:03 UTC (permalink / raw)
  To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood
  Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt,
	mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason,
	shawn.guo, treding, florian.vaussard, trivial, linux, andrew,
	jic23

From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com>
---
Changes v8:
Made up the example for backlight DT

Changes v7:
Nothing

Changes v6:
Nothing

Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver

Changes v4:
Nothing

Changes v3:
Nothing

Changes v2:
Added reg attribute for I2C slave address

 Documentation/devicetree/bindings/mfd/sky81452.txt | 36 ++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt

diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 0000000..ab71473
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,36 @@
+SKY81452 bindings
+
+Required properties:
+- compatible	: Must be "skyworks,sky81452"
+- reg		: I2C slave address
+
+Required child nodes:
+- backlight	: container node for backlight following the binding
+		in video/backlight/sky81452-backlight.txt
+- regulator	: container node for regulators following the binding
+		in regulator/sky81452-regulator.txt
+
+Example:
+
+	sky81452@2c {
+		compatible = "skyworks,sky81452";
+		reg = <0x2c>;
+
+		backlight {
+			compatible = "skyworks,sky81452-backlight";
+			name = "pwm-backlight";
+			skyworks,en-channels = <0x3f>;
+			skyworks,ignore-pwm;
+			skyworks,phase-shift;
+			skyworks,ovp-level = <20>;
+			skyworks,current-limit = <2300>;
+		};
+
+		regulator {
+			lout {
+				regulator-name = "sky81452-lout";
+				regulator-min-microvolt = <4500000>;
+				regulator-max-microvolt = <8000000>;
+			};
+		};
+	};
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH v8 4/8] devicetree: backlight: Add new SKY81452 backlight binding
  2014-11-25  7:02 ` gyungoh-Re5JQEeQqe8AvxtiuMwx3w
                   ` (3 preceding siblings ...)
  (?)
@ 2014-11-25  7:03 ` gyungoh
  -1 siblings, 0 replies; 17+ messages in thread
From: gyungoh @ 2014-11-25  7:03 UTC (permalink / raw)
  To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood
  Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt,
	mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason,
	shawn.guo, treding, florian.vaussard, trivial, linux, andrew,
	jic23

From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com>
---
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT

Changes v7:
Nothing

Changes v6:
Nothing

Changes v5:
Nothing

Changes v4:
Nothing

Changes v3:
Nothing

Changes v2:
Added reg attribute for I2C slave address

 .../video/backlight/sky81452-backlight.txt         | 29 ++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt

diff --git a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 0000000..8daebf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible		: Must be "skyworks,sky81452-backlight"
+
+Optional properties:
+- name			: Name of backlight device. Default is 'lcd-backlight'.
+- gpios			: GPIO to use to EN pin.
+			See Documentation/devicetree/bindings/gpio/gpio.txt
+- skyworks,en-channels	: Enable mask for current sink channel 1 to 6.
+- skyworks,ignore-pwm	: Ignore both PWM input
+- skyworks,dpwm-mode	: Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift	: Enable phase shift mode
+- skyworks,ovp-level	: Over-voltage protection level.
+			Should be between 14 or 28V.
+- skyworks,short-detection-threshold	: It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit	: It should be 2300mA or 2750mA.
+
+Example:
+
+	backlight {
+		compatible = "skyworks,sky81452-backlight";
+		name = "pwm-backlight";
+		skyworks,en-channels = <0x3f>;
+		skyworks,ignore-pwm;
+		skyworks,phase-shift;
+		skyworks,ovp-level = <20>;
+		skyworks,current-limit = <2300>;
+	};
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH v8 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
  2014-11-25  7:02 ` gyungoh-Re5JQEeQqe8AvxtiuMwx3w
                   ` (4 preceding siblings ...)
  (?)
@ 2014-11-25  7:03 ` gyungoh
  -1 siblings, 0 replies; 17+ messages in thread
From: gyungoh @ 2014-11-25  7:03 UTC (permalink / raw)
  To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood
  Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt,
	mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason,
	shawn.guo, treding, florian.vaussard, trivial, linux, andrew,
	jic23

From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com>
---
Changes v8:
Nothing

Changes v7:
Nothing

Changes v6:
Nothing

Changes v5:
Nothing

Changes v4:
Nothing

Changes v3:
Nothing

Changes v2:
Added vendor prefix for Skyworks Solutions, Inc.

 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index a344ec2..68143f0 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -140,6 +140,7 @@ sii	Seiko Instruments, Inc.
 silergy	Silergy Corp.
 sirf	SiRF Technology, Inc.
 sitronix	Sitronix Technology Corporation
+skyworks	Skyworks Solutions, Inc.
 smsc	Standard Microsystems Corporation
 snps	Synopsys, Inc.
 solidrun	SolidRun
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH v8 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list
  2014-11-25  7:02 ` gyungoh-Re5JQEeQqe8AvxtiuMwx3w
                   ` (5 preceding siblings ...)
  (?)
@ 2014-11-25  7:03 ` gyungoh
  -1 siblings, 0 replies; 17+ messages in thread
From: gyungoh @ 2014-11-25  7:03 UTC (permalink / raw)
  To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood
  Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt,
	mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason,
	shawn.guo, treding, florian.vaussard, trivial, linux, andrew,
	jic23

From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com>
---
Changes v8:
Nothing

Changes v7:
Nothing

Changes v6:
Nothing

Changes v5:
Nothing

Changes v4:
Nothing

Changes v3:
Nothing

Changes v2:
Add SKY81452 to the Trivial Devices list

 Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
index fbde415..122fa1e 100644
--- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
@@ -77,6 +77,7 @@ ramtron,24c64		i2c serial eeprom  (24cxx)
 ricoh,rs5c372a		I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
 samsung,24ad0xd1	S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power)
 sii,s35390a		2-wire CMOS real-time clock
+skyworks,sky81452	Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply
 st-micro,24c256		i2c serial eeprom  (24cxx)
 stm,m41t00		Serial Access TIMEKEEPER
 stm,m41t62		Serial real-time clock (RTC) with alarm
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH v8 7/8] regulator: sky81452: Modify Device Tree structure
  2014-11-25  7:02 ` gyungoh-Re5JQEeQqe8AvxtiuMwx3w
                   ` (6 preceding siblings ...)
  (?)
@ 2014-11-25  7:03 ` gyungoh
  2014-11-25 12:19     ` Mark Brown
  -1 siblings, 1 reply; 17+ messages in thread
From: gyungoh @ 2014-11-25  7:03 UTC (permalink / raw)
  To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood
  Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt,
	mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason,
	shawn.guo, treding, florian.vaussard, trivial, linux, andrew,
	jic23

From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com>
---
Changes v8:
Changed the DT parsing of regulator using regulator_node and of_match

Changes v7:
Modified licensing text to GPLv2
Splitted Kconfig renaming from DT patch

Changes v6:
Added new line character at the end of line of dev_err()

Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string
Modified to return EINVAL when of_node is NULL

Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2

Changes v3:
Modified to return ENODATA when of_node is NULL
Modified the messages in error cases

Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors.

 drivers/regulator/sky81452-regulator.c | 46 +++++++---------------------------
 1 file changed, 9 insertions(+), 37 deletions(-)

diff --git a/drivers/regulator/sky81452-regulator.c b/drivers/regulator/sky81452-regulator.c
index 97aff0c..6478606 100644
--- a/drivers/regulator/sky81452-regulator.c
+++ b/drivers/regulator/sky81452-regulator.c
@@ -5,9 +5,8 @@
  * Author : Gyungoh Yoo <jack.yoo@skyworksinc.com>
  *
  * 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, or (at your option) any
- * later version.
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -52,6 +51,8 @@ static const struct regulator_linear_range sky81452_reg_ranges[] = {
 
 static const struct regulator_desc sky81452_reg = {
 	.name = "LOUT",
+	.of_match = of_match_ptr("lout"),
+	.regulators_node = of_match_ptr("regulator"),
 	.ops = &sky81452_reg_ops,
 	.type = REGULATOR_VOLTAGE,
 	.owner = THIS_MODULE,
@@ -64,30 +65,6 @@ static const struct regulator_desc sky81452_reg = {
 	.enable_mask = SKY81452_LEN,
 };
 
-#ifdef CONFIG_OF
-static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev)
-{
-	struct regulator_init_data *init_data;
-	struct device_node *np;
-
-	np = of_get_child_by_name(dev->parent->of_node, "regulator");
-	if (unlikely(!np)) {
-		dev_err(dev, "regulator node not found");
-		return NULL;
-	}
-
-	init_data = of_get_regulator_init_data(dev, np);
-
-	of_node_put(np);
-	return init_data;
-}
-#else
-static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev)
-{
-	return ERR_PTR(-EINVAL);
-}
-#endif
-
 static int sky81452_reg_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -95,20 +72,16 @@ static int sky81452_reg_probe(struct platform_device *pdev)
 	struct regulator_config config = { };
 	struct regulator_dev *rdev;
 
-	if (!init_data) {
-		init_data = sky81452_reg_parse_dt(dev);
-		if (IS_ERR(init_data))
-			return PTR_ERR(init_data);
-	}
-
-	config.dev = dev;
+	config.dev = dev->parent;
 	config.init_data = init_data;
 	config.of_node = dev->of_node;
 	config.regmap = dev_get_drvdata(dev->parent);
 
 	rdev = devm_regulator_register(dev, &sky81452_reg, &config);
-	if (IS_ERR(rdev))
+	if (IS_ERR(rdev)) {
+		dev_err(dev, "failed to register. err=%ld\n", PTR_ERR(rdev));
 		return PTR_ERR(rdev);
+	}
 
 	platform_set_drvdata(pdev, rdev);
 
@@ -126,5 +99,4 @@ module_platform_driver(sky81452_reg_driver);
 
 MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver");
 MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>");
-MODULE_LICENSE("GPL");
-MODULE_VERSION("1.0");
+MODULE_LICENSE("GPL v2");
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH v8 8/8] devicetree: regulator: sky81452: Modify Device Tree structure
  2014-11-25  7:02 ` gyungoh-Re5JQEeQqe8AvxtiuMwx3w
                   ` (7 preceding siblings ...)
  (?)
@ 2014-11-25  7:03 ` gyungoh
  -1 siblings, 0 replies; 17+ messages in thread
From: gyungoh @ 2014-11-25  7:03 UTC (permalink / raw)
  To: sameo, lee.jones, jg1.han, cooloney, broonie, lgirdwood
  Cc: jack.yoo, linux-kernel, devicetree, grant.likely, robh+dt,
	mark.rutland, ijc+devicetree, galak, pawel.moll, heiko, jason,
	shawn.guo, treding, florian.vaussard, trivial, linux, andrew,
	jic23

From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

Signed-off-by: Gyungoh Yoo <jack.yoo@skyworksinc.com>
---
Changes v8:
Nothing

Changes v7:
Nothing

Changes v6:
Nothing

Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver

Changes v4:
Nothing

Changes v3:
Nothing

Changes v2:
Added 'compatible' attribute in the driver

 .../devicetree/bindings/regulator/sky81452-regulator.txt       | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt
index 882455e..f9acbc1 100644
--- a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt
@@ -1,6 +1,7 @@
 SKY81452 voltage regulator
 
 Required properties:
+- regulator node named lout.
 - any required generic properties defined in regulator.txt
 
 Optional properties:
@@ -9,8 +10,9 @@ Optional properties:
 Example:
 
 	regulator {
-		/* generic regulator properties */
-		regulator-name = "touch_en";
-		regulator-min-microvolt = <4500000>;
-		regulator-max-microvolt = <8000000>;
+		lout {
+			regulator-name = "sky81452-lout";
+			regulator-min-microvolt = <4500000>;
+			regulator-max-microvolt = <8000000>;
+		};
 	};
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 17+ messages in thread

* Re: [PATCH v8 7/8] regulator: sky81452: Modify Device Tree structure
@ 2014-11-25 12:19     ` Mark Brown
  0 siblings, 0 replies; 17+ messages in thread
From: Mark Brown @ 2014-11-25 12:19 UTC (permalink / raw)
  To: gyungoh
  Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo,
	linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland,
	ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo,
	treding, florian.vaussard, trivial, linux, andrew, jic23

[-- Attachment #1: Type: text/plain, Size: 160 bytes --]

On Tue, Nov 25, 2014 at 04:03:05PM +0900, gyungoh@gmail.com wrote:
> From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

This doesn't apply, please check and resend.

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 473 bytes --]

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH v8 7/8] regulator: sky81452: Modify Device Tree structure
@ 2014-11-25 12:19     ` Mark Brown
  0 siblings, 0 replies; 17+ messages in thread
From: Mark Brown @ 2014-11-25 12:19 UTC (permalink / raw)
  To: gyungoh-Re5JQEeQqe8AvxtiuMwx3w
  Cc: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A,
	jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w,
	lgirdwood-Re5JQEeQqe8AvxtiuMwx3w,
	jack.yoo-tjhQNA90jdKqndwCJWfcng,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA,
	devicetree-u79uwXL29TY76Z2rM5mHXA,
	grant.likely-QSEj5FYQhm4dnm+yROfE0A,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8,
	ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg,
	galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8,
	heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA,
	shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA,
	florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A,
	linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY,
	jic23-DgEjT+Ai2ygdnm+yROfE0A

[-- Attachment #1: Type: text/plain, Size: 214 bytes --]

On Tue, Nov 25, 2014 at 04:03:05PM +0900, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
> From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>

This doesn't apply, please check and resend.

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 473 bytes --]

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH v8 7/8] regulator: sky81452: Modify Device Tree structure
  2014-11-25 12:19     ` Mark Brown
  (?)
@ 2014-11-26  1:40     ` Gyungoh Yoo
  2014-11-26 16:37         ` Mark Brown
  -1 siblings, 1 reply; 17+ messages in thread
From: Gyungoh Yoo @ 2014-11-26  1:40 UTC (permalink / raw)
  To: Mark Brown
  Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo,
	linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland,
	ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo,
	treding, florian.vaussard, trivial, linux, andrew, jic23

On Tue, Nov 25, 2014 at 12:19:16PM +0000, Mark Brown wrote:
> On Tue, Nov 25, 2014 at 04:03:05PM +0900, gyungoh@gmail.com wrote:
> > From: Gyungoh Yoo <jack.yoo@skyworksinc.com>
> 
> This doesn't apply, please check and resend.

Could you please explain why this doesn't?

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH v8 7/8] regulator: sky81452: Modify Device Tree structure
  2014-11-26  1:40     ` Gyungoh Yoo
@ 2014-11-26 16:37         ` Mark Brown
  0 siblings, 0 replies; 17+ messages in thread
From: Mark Brown @ 2014-11-26 16:37 UTC (permalink / raw)
  To: Gyungoh Yoo
  Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo,
	linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland,
	ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo,
	treding, florian.vaussard, trivial, linux, andrew, jic23

[-- Attachment #1: Type: text/plain, Size: 489 bytes --]

On Wed, Nov 26, 2014 at 10:40:07AM +0900, Gyungoh Yoo wrote:
> On Tue, Nov 25, 2014 at 12:19:16PM +0000, Mark Brown wrote:
> > On Tue, Nov 25, 2014 at 04:03:05PM +0900, gyungoh@gmail.com wrote:
> > > From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

> > This doesn't apply, please check and resend.

> Could you please explain why this doesn't?

When I tried to apply it to my topic/sky81452 branch git am barfed on
it, presumably because the code you based it on is different to that
branch.

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 473 bytes --]

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH v8 7/8] regulator: sky81452: Modify Device Tree structure
@ 2014-11-26 16:37         ` Mark Brown
  0 siblings, 0 replies; 17+ messages in thread
From: Mark Brown @ 2014-11-26 16:37 UTC (permalink / raw)
  To: Gyungoh Yoo
  Cc: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A,
	jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w,
	lgirdwood-Re5JQEeQqe8AvxtiuMwx3w,
	jack.yoo-tjhQNA90jdKqndwCJWfcng,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA,
	devicetree-u79uwXL29TY76Z2rM5mHXA,
	grant.likely-QSEj5FYQhm4dnm+yROfE0A,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8,
	ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg,
	galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8,
	heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA,
	shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA,
	florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A,
	linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY,
	jic23-DgEjT+Ai2ygdnm+yROfE0A

[-- Attachment #1: Type: text/plain, Size: 543 bytes --]

On Wed, Nov 26, 2014 at 10:40:07AM +0900, Gyungoh Yoo wrote:
> On Tue, Nov 25, 2014 at 12:19:16PM +0000, Mark Brown wrote:
> > On Tue, Nov 25, 2014 at 04:03:05PM +0900, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
> > > From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>

> > This doesn't apply, please check and resend.

> Could you please explain why this doesn't?

When I tried to apply it to my topic/sky81452 branch git am barfed on
it, presumably because the code you based it on is different to that
branch.

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 473 bytes --]

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH v8 7/8] regulator: sky81452: Modify Device Tree structure
@ 2014-12-02  7:42           ` Gyungoh Yoo
  0 siblings, 0 replies; 17+ messages in thread
From: Gyungoh Yoo @ 2014-12-02  7:42 UTC (permalink / raw)
  To: Mark Brown
  Cc: sameo, lee.jones, jg1.han, cooloney, lgirdwood, jack.yoo,
	linux-kernel, devicetree, grant.likely, robh+dt, mark.rutland,
	ijc+devicetree, galak, pawel.moll, heiko, jason, shawn.guo,
	treding, florian.vaussard, trivial, linux, andrew, jic23

On Wed, Nov 26, 2014 at 04:37:02PM +0000, Mark Brown wrote:
> On Wed, Nov 26, 2014 at 10:40:07AM +0900, Gyungoh Yoo wrote:
> > On Tue, Nov 25, 2014 at 12:19:16PM +0000, Mark Brown wrote:
> > > On Tue, Nov 25, 2014 at 04:03:05PM +0900, gyungoh@gmail.com wrote:
> > > > From: Gyungoh Yoo <jack.yoo@skyworksinc.com>
> 
> > > This doesn't apply, please check and resend.
> 
> > Could you please explain why this doesn't?
> 
> When I tried to apply it to my topic/sky81452 branch git am barfed on
> it, presumably because the code you based it on is different to that
> branch.

I checked it and I will resend it.
Thank you.

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH v8 7/8] regulator: sky81452: Modify Device Tree structure
@ 2014-12-02  7:42           ` Gyungoh Yoo
  0 siblings, 0 replies; 17+ messages in thread
From: Gyungoh Yoo @ 2014-12-02  7:42 UTC (permalink / raw)
  To: Mark Brown
  Cc: sameo-VuQAYsv1563Yd54FQh9/CA, lee.jones-QSEj5FYQhm4dnm+yROfE0A,
	jg1.han-Sze3O3UU22JBDgjK7y7TUQ, cooloney-Re5JQEeQqe8AvxtiuMwx3w,
	lgirdwood-Re5JQEeQqe8AvxtiuMwx3w,
	jack.yoo-tjhQNA90jdKqndwCJWfcng,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA,
	devicetree-u79uwXL29TY76Z2rM5mHXA,
	grant.likely-QSEj5FYQhm4dnm+yROfE0A,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A, mark.rutland-5wv7dgnIgG8,
	ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg,
	galak-sgV2jX0FEOL9JmXXK+q4OQ, pawel.moll-5wv7dgnIgG8,
	heiko-4mtYJXux2i+zQB+pC5nmwQ, jason-NLaQJdtUoK4Be96aLqz0jA,
	shawn.guo-KZfg59tc24xl57MIdRCFDg, treding-DDmLM1+adcrQT0dZR+AlfA,
	florian.vaussard-p8DiymsW2f8, trivial-DgEjT+Ai2ygdnm+yROfE0A,
	linux-0h96xk9xTtrk1uMJSBkQmQ, andrew-g2DYL2Zd6BY,
	jic23-DgEjT+Ai2ygdnm+yROfE0A

On Wed, Nov 26, 2014 at 04:37:02PM +0000, Mark Brown wrote:
> On Wed, Nov 26, 2014 at 10:40:07AM +0900, Gyungoh Yoo wrote:
> > On Tue, Nov 25, 2014 at 12:19:16PM +0000, Mark Brown wrote:
> > > On Tue, Nov 25, 2014 at 04:03:05PM +0900, gyungoh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
> > > > From: Gyungoh Yoo <jack.yoo-tjhQNA90jdKqndwCJWfcng@public.gmane.org>
> 
> > > This doesn't apply, please check and resend.
> 
> > Could you please explain why this doesn't?
> 
> When I tried to apply it to my topic/sky81452 branch git am barfed on
> it, presumably because the code you based it on is different to that
> branch.

I checked it and I will resend it.
Thank you.
--
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^ permalink raw reply	[flat|nested] 17+ messages in thread

end of thread, other threads:[~2014-12-02  7:42 UTC | newest]

Thread overview: 17+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-11-25  7:02 [PATCH v8 0/8] Add Skyworks SKY81452 device drivers gyungoh
2014-11-25  7:02 ` gyungoh-Re5JQEeQqe8AvxtiuMwx3w
2014-11-25  7:02 ` [PATCH v8 1/8] mfd: Add support for Skyworks SKY81452 driver gyungoh
2014-11-25  7:03 ` [PATCH v8 2/8] backlight: Add support Skyworks SKY81452 backlight driver gyungoh
2014-11-25  7:03 ` [PATCH v8 3/8] devicetree: mfd: Add new SKY81452 mfd binding gyungoh
2014-11-25  7:03 ` [PATCH v8 4/8] devicetree: backlight: Add new SKY81452 backlight binding gyungoh
2014-11-25  7:03 ` [PATCH v8 5/8] devicetree: Add vendor prefix for Skyworks Solutions, Inc gyungoh
2014-11-25  7:03 ` [PATCH v8 6/8] devicetree: i2c: Add SKY81452 to the Trivial Devices list gyungoh
2014-11-25  7:03 ` [PATCH v8 7/8] regulator: sky81452: Modify Device Tree structure gyungoh
2014-11-25 12:19   ` Mark Brown
2014-11-25 12:19     ` Mark Brown
2014-11-26  1:40     ` Gyungoh Yoo
2014-11-26 16:37       ` Mark Brown
2014-11-26 16:37         ` Mark Brown
2014-12-02  7:42         ` Gyungoh Yoo
2014-12-02  7:42           ` Gyungoh Yoo
2014-11-25  7:03 ` [PATCH v8 8/8] devicetree: " gyungoh

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