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* [PATCH 0/2] omap: add ocp2scp as a bus driver
@ 2012-07-16 14:13 ` Kishon Vijay Abraham I
  0 siblings, 0 replies; 18+ messages in thread
From: Kishon Vijay Abraham I @ 2012-07-16 14:13 UTC (permalink / raw)
  To: grant.likely, rob.herring, rob, linux, kishon, b-cousson, rnayak,
	tony, gregkh, ohad, linus.walleij, myungjoo.ham, rusty, swarren,
	devicetree-discuss, linux-doc, linux-kernel, linux-arm-kernel,
	balbi, linux-omap, linux-usb

This patch series is done as a preparatory step for adding phy drivers
for dwc3 and musb.

This series adds a new driver for ocp2scp (only dt) to which phy
drivers are connected.

Since currently there is no generic way to create a child device along
with doing a pm_runtime_enable (the exact requirement for ocp2scp), I'm
creating a separate driver for ocp2scp.

Changes from [RFC PATCH v2 0/2] omap: add ocp2scp as a misc driver:
Created a new folder drivers/bus and moved ocp2scp driver from misc to
drivers/bus.

This patch was developed and tested on
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git

Kishon Vijay Abraham I (2):
  drivers: bus: add a new driver for omap-ocp2scp
  arm/dts: omap4: Add ocp2scp data

 .../devicetree/bindings/bus/omap-ocp2scp.txt       |   10 ++
 arch/arm/boot/dts/omap4.dtsi                       |    8 ++
 drivers/Kconfig                                    |    2 +
 drivers/Makefile                                   |    2 +
 drivers/bus/Kconfig                                |   15 +++
 drivers/bus/Makefile                               |    5 +
 drivers/bus/omap-ocp2scp.c                         |   98 ++++++++++++++++++++
 7 files changed, 140 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
 create mode 100644 drivers/bus/Kconfig
 create mode 100644 drivers/bus/Makefile
 create mode 100644 drivers/bus/omap-ocp2scp.c

-- 
1.7.5.4


^ permalink raw reply	[flat|nested] 18+ messages in thread

* [PATCH 0/2] omap: add ocp2scp as a bus driver
@ 2012-07-16 14:13 ` Kishon Vijay Abraham I
  0 siblings, 0 replies; 18+ messages in thread
From: Kishon Vijay Abraham I @ 2012-07-16 14:13 UTC (permalink / raw)
  To: grant.likely, rob.herring, rob, linux, kishon, b-cousson, rnayak,
	tony, gregkh, ohad, linus.walleij, myungjoo.ham, rusty, swarren,
	devicetree-discuss, linux-doc, linux-kernel, linux-arm-kernel,
	balbi, linux-omap, linux-usb

This patch series is done as a preparatory step for adding phy drivers
for dwc3 and musb.

This series adds a new driver for ocp2scp (only dt) to which phy
drivers are connected.

Since currently there is no generic way to create a child device along
with doing a pm_runtime_enable (the exact requirement for ocp2scp), I'm
creating a separate driver for ocp2scp.

Changes from [RFC PATCH v2 0/2] omap: add ocp2scp as a misc driver:
Created a new folder drivers/bus and moved ocp2scp driver from misc to
drivers/bus.

This patch was developed and tested on
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git

Kishon Vijay Abraham I (2):
  drivers: bus: add a new driver for omap-ocp2scp
  arm/dts: omap4: Add ocp2scp data

 .../devicetree/bindings/bus/omap-ocp2scp.txt       |   10 ++
 arch/arm/boot/dts/omap4.dtsi                       |    8 ++
 drivers/Kconfig                                    |    2 +
 drivers/Makefile                                   |    2 +
 drivers/bus/Kconfig                                |   15 +++
 drivers/bus/Makefile                               |    5 +
 drivers/bus/omap-ocp2scp.c                         |   98 ++++++++++++++++++++
 7 files changed, 140 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
 create mode 100644 drivers/bus/Kconfig
 create mode 100644 drivers/bus/Makefile
 create mode 100644 drivers/bus/omap-ocp2scp.c

-- 
1.7.5.4


^ permalink raw reply	[flat|nested] 18+ messages in thread

* [PATCH 0/2] omap: add ocp2scp as a bus driver
@ 2012-07-16 14:13 ` Kishon Vijay Abraham I
  0 siblings, 0 replies; 18+ messages in thread
From: Kishon Vijay Abraham I @ 2012-07-16 14:13 UTC (permalink / raw)
  To: linux-arm-kernel

This patch series is done as a preparatory step for adding phy drivers
for dwc3 and musb.

This series adds a new driver for ocp2scp (only dt) to which phy
drivers are connected.

Since currently there is no generic way to create a child device along
with doing a pm_runtime_enable (the exact requirement for ocp2scp), I'm
creating a separate driver for ocp2scp.

Changes from [RFC PATCH v2 0/2] omap: add ocp2scp as a misc driver:
Created a new folder drivers/bus and moved ocp2scp driver from misc to
drivers/bus.

This patch was developed and tested on
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git

Kishon Vijay Abraham I (2):
  drivers: bus: add a new driver for omap-ocp2scp
  arm/dts: omap4: Add ocp2scp data

 .../devicetree/bindings/bus/omap-ocp2scp.txt       |   10 ++
 arch/arm/boot/dts/omap4.dtsi                       |    8 ++
 drivers/Kconfig                                    |    2 +
 drivers/Makefile                                   |    2 +
 drivers/bus/Kconfig                                |   15 +++
 drivers/bus/Makefile                               |    5 +
 drivers/bus/omap-ocp2scp.c                         |   98 ++++++++++++++++++++
 7 files changed, 140 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
 create mode 100644 drivers/bus/Kconfig
 create mode 100644 drivers/bus/Makefile
 create mode 100644 drivers/bus/omap-ocp2scp.c

-- 
1.7.5.4

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [PATCH 1/2] drivers: bus: add a new driver for omap-ocp2scp
@ 2012-07-16 14:13   ` Kishon Vijay Abraham I
  0 siblings, 0 replies; 18+ messages in thread
From: Kishon Vijay Abraham I @ 2012-07-16 14:13 UTC (permalink / raw)
  To: grant.likely, rob.herring, rob, linux, kishon, b-cousson, rnayak,
	tony, gregkh, ohad, linus.walleij, myungjoo.ham, rusty, swarren,
	devicetree-discuss, linux-doc, linux-kernel, linux-arm-kernel,
	balbi, linux-omap, linux-usb

Adds a new driver *omap-ocp2scp*. This driver takes the responsibility of
creating all the devices that is connected to OCP2SCP. In the case of OMAP4,
USB2PHY is connected to ocp2scp.

This also includes device tree support for ocp2scp driver and
the documentation with device tree binding information is updated.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 .../devicetree/bindings/bus/omap-ocp2scp.txt       |   10 ++
 drivers/Kconfig                                    |    2 +
 drivers/Makefile                                   |    2 +
 drivers/bus/Kconfig                                |   15 +++
 drivers/bus/Makefile                               |    5 +
 drivers/bus/omap-ocp2scp.c                         |   98 ++++++++++++++++++++
 6 files changed, 132 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
 create mode 100644 drivers/bus/Kconfig
 create mode 100644 drivers/bus/Makefile
 create mode 100644 drivers/bus/omap-ocp2scp.c

diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
new file mode 100644
index 0000000..d2fe064
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
@@ -0,0 +1,10 @@
+* OMAP OCP2SCP - ocp interface to scp interface
+
+properties:
+- compatible : Should be "ti,omap-ocp2scp"
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+- ranges : the child address space are mapped 1:1 onto the parent address space
+- ti,hwmods : must be "ocp2scp_usb_phy"
+
+Sub-nodes:
+All the devices connected to ocp2scp are described using sub-node to ocp2scp
diff --git a/drivers/Kconfig b/drivers/Kconfig
index bfc9186..4fe1e4c 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -2,6 +2,8 @@ menu "Device Drivers"
 
 source "drivers/base/Kconfig"
 
+source "drivers/bus/Kconfig"
+
 source "drivers/connector/Kconfig"
 
 source "drivers/mtd/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index 2ba29ff..cac3819 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -5,6 +5,8 @@
 # Rewritten to use lists instead of if-statements.
 #
 
+obj-y				+= bus/
+
 # GPIO must come after pinctrl as gpios may need to mux pins etc
 obj-y				+= pinctrl/
 obj-y				+= gpio/
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
new file mode 100644
index 0000000..6270415
--- /dev/null
+++ b/drivers/bus/Kconfig
@@ -0,0 +1,15 @@
+#
+# Bus Devices
+#
+
+menu "Bus devices"
+
+config OMAP_OCP2SCP
+	tristate "OMAP OCP2SCP DRIVER"
+	help
+	  Driver to enable ocp2scp module which transforms ocp interface
+	  protocol to scp protocol. In OMAP4, USB PHY is connected via
+	  OCP2SCP and in OMAP5, both USB PHY and SATA PHY is connected via
+	  OCP2SCP.
+
+endmenu
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
new file mode 100644
index 0000000..0ec50bc
--- /dev/null
+++ b/drivers/bus/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the bus drivers.
+#
+
+obj-$(CONFIG_OMAP_OCP2SCP)	+= omap-ocp2scp.o
diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c
new file mode 100644
index 0000000..8c3db3a
--- /dev/null
+++ b/drivers/bus/omap-ocp2scp.c
@@ -0,0 +1,98 @@
+/*
+ * omap-ocp2scp.c - transform ocp interface protocol to scp protocol
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.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 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+
+static int ocp2scp_remove_devices(struct device *dev, void *c)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+
+	platform_device_unregister(pdev);
+
+	return 0;
+}
+
+static int __devinit omap_ocp2scp_probe(struct platform_device *pdev)
+{
+	int			ret;
+	struct device_node	*np = pdev->dev.of_node;
+
+	if (np) {
+		ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to add resources for ocp2scp child\n");
+			goto err0;
+		}
+	}
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+
+err0:
+	device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
+
+	return ret;
+}
+
+static int __devexit omap_ocp2scp_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+	device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id omap_ocp2scp_id_table[] = {
+	{ .compatible = "ti,omap-ocp2scp" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
+#endif
+
+static struct platform_driver omap_ocp2scp_driver = {
+	.probe		= omap_ocp2scp_probe,
+	.remove		= __devexit_p(omap_ocp2scp_remove),
+	.driver		= {
+		.name	= "omap-ocp2scp",
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(omap_ocp2scp_id_table),
+	},
+};
+
+static int __init omap_ocp2scp_init(void)
+{
+	return platform_driver_register(&omap_ocp2scp_driver);
+}
+arch_initcall(omap_ocp2scp_init);
+
+static void __exit omap_ocp2scp_exit(void)
+{
+	platform_driver_unregister(&omap_ocp2scp_driver);
+}
+module_exit(omap_ocp2scp_exit);
+
+MODULE_ALIAS("platform: omap-ocp2scp");
+MODULE_AUTHOR("Texas Instruments Inc.");
+MODULE_DESCRIPTION("OMAP OCP2SCP DRIVER");
+MODULE_LICENSE("GPLv2");
-- 
1.7.5.4


^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH 1/2] drivers: bus: add a new driver for omap-ocp2scp
@ 2012-07-16 14:13   ` Kishon Vijay Abraham I
  0 siblings, 0 replies; 18+ messages in thread
From: Kishon Vijay Abraham I @ 2012-07-16 14:13 UTC (permalink / raw)
  To: grant.likely-s3s/WqlpOiPyB63q8FvJNQ,
	rob.herring-bsGFqQB8/DxBDgjK7y7TUQ, rob-VoJi6FS/r0vR7s880joybQ,
	linux-lFZ/pmaqli7XmaaqVzeoHQ, kishon-l0cyMroinI0,
	b-cousson-l0cyMroinI0, rnayak-l0cyMroinI0,
	tony-4v6yS6AI5VpBDgjK7y7TUQ,
	gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r,
	ohad-Ix1uc/W3ht7QT0dZR+AlfA,
	linus.walleij-QSEj5FYQhm4dnm+yROfE0A,
	myungjoo.ham-Sze3O3UU22JBDgjK7y7TUQ,
	rusty-8n+1lVoiYb80n/F98K4Iww, swarren-DDmLM1+adcrQT0dZR+AlfA,
	devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
	linux-doc-u79uwXL29TY76Z2rM5mHXA,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
	balbi-l0cyMroinI0, linux-omap-u79uwXL29TY76Z2rM5mHXA,
	linux-usb-u79uwXL29TY76Z2rM5mHXA

Adds a new driver *omap-ocp2scp*. This driver takes the responsibility of
creating all the devices that is connected to OCP2SCP. In the case of OMAP4,
USB2PHY is connected to ocp2scp.

This also includes device tree support for ocp2scp driver and
the documentation with device tree binding information is updated.

Cc: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Signed-off-by: Kishon Vijay Abraham I <kishon-l0cyMroinI0@public.gmane.org>
---
 .../devicetree/bindings/bus/omap-ocp2scp.txt       |   10 ++
 drivers/Kconfig                                    |    2 +
 drivers/Makefile                                   |    2 +
 drivers/bus/Kconfig                                |   15 +++
 drivers/bus/Makefile                               |    5 +
 drivers/bus/omap-ocp2scp.c                         |   98 ++++++++++++++++++++
 6 files changed, 132 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
 create mode 100644 drivers/bus/Kconfig
 create mode 100644 drivers/bus/Makefile
 create mode 100644 drivers/bus/omap-ocp2scp.c

diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
new file mode 100644
index 0000000..d2fe064
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
@@ -0,0 +1,10 @@
+* OMAP OCP2SCP - ocp interface to scp interface
+
+properties:
+- compatible : Should be "ti,omap-ocp2scp"
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+- ranges : the child address space are mapped 1:1 onto the parent address space
+- ti,hwmods : must be "ocp2scp_usb_phy"
+
+Sub-nodes:
+All the devices connected to ocp2scp are described using sub-node to ocp2scp
diff --git a/drivers/Kconfig b/drivers/Kconfig
index bfc9186..4fe1e4c 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -2,6 +2,8 @@ menu "Device Drivers"
 
 source "drivers/base/Kconfig"
 
+source "drivers/bus/Kconfig"
+
 source "drivers/connector/Kconfig"
 
 source "drivers/mtd/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index 2ba29ff..cac3819 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -5,6 +5,8 @@
 # Rewritten to use lists instead of if-statements.
 #
 
+obj-y				+= bus/
+
 # GPIO must come after pinctrl as gpios may need to mux pins etc
 obj-y				+= pinctrl/
 obj-y				+= gpio/
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
new file mode 100644
index 0000000..6270415
--- /dev/null
+++ b/drivers/bus/Kconfig
@@ -0,0 +1,15 @@
+#
+# Bus Devices
+#
+
+menu "Bus devices"
+
+config OMAP_OCP2SCP
+	tristate "OMAP OCP2SCP DRIVER"
+	help
+	  Driver to enable ocp2scp module which transforms ocp interface
+	  protocol to scp protocol. In OMAP4, USB PHY is connected via
+	  OCP2SCP and in OMAP5, both USB PHY and SATA PHY is connected via
+	  OCP2SCP.
+
+endmenu
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
new file mode 100644
index 0000000..0ec50bc
--- /dev/null
+++ b/drivers/bus/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the bus drivers.
+#
+
+obj-$(CONFIG_OMAP_OCP2SCP)	+= omap-ocp2scp.o
diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c
new file mode 100644
index 0000000..8c3db3a
--- /dev/null
+++ b/drivers/bus/omap-ocp2scp.c
@@ -0,0 +1,98 @@
+/*
+ * omap-ocp2scp.c - transform ocp interface protocol to scp protocol
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.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 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I <kishon-l0cyMroinI0@public.gmane.org>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+
+static int ocp2scp_remove_devices(struct device *dev, void *c)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+
+	platform_device_unregister(pdev);
+
+	return 0;
+}
+
+static int __devinit omap_ocp2scp_probe(struct platform_device *pdev)
+{
+	int			ret;
+	struct device_node	*np = pdev->dev.of_node;
+
+	if (np) {
+		ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to add resources for ocp2scp child\n");
+			goto err0;
+		}
+	}
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+
+err0:
+	device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
+
+	return ret;
+}
+
+static int __devexit omap_ocp2scp_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+	device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id omap_ocp2scp_id_table[] = {
+	{ .compatible = "ti,omap-ocp2scp" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
+#endif
+
+static struct platform_driver omap_ocp2scp_driver = {
+	.probe		= omap_ocp2scp_probe,
+	.remove		= __devexit_p(omap_ocp2scp_remove),
+	.driver		= {
+		.name	= "omap-ocp2scp",
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(omap_ocp2scp_id_table),
+	},
+};
+
+static int __init omap_ocp2scp_init(void)
+{
+	return platform_driver_register(&omap_ocp2scp_driver);
+}
+arch_initcall(omap_ocp2scp_init);
+
+static void __exit omap_ocp2scp_exit(void)
+{
+	platform_driver_unregister(&omap_ocp2scp_driver);
+}
+module_exit(omap_ocp2scp_exit);
+
+MODULE_ALIAS("platform: omap-ocp2scp");
+MODULE_AUTHOR("Texas Instruments Inc.");
+MODULE_DESCRIPTION("OMAP OCP2SCP DRIVER");
+MODULE_LICENSE("GPLv2");
-- 
1.7.5.4

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH 1/2] drivers: bus: add a new driver for omap-ocp2scp
@ 2012-07-16 14:13   ` Kishon Vijay Abraham I
  0 siblings, 0 replies; 18+ messages in thread
From: Kishon Vijay Abraham I @ 2012-07-16 14:13 UTC (permalink / raw)
  To: linux-arm-kernel

Adds a new driver *omap-ocp2scp*. This driver takes the responsibility of
creating all the devices that is connected to OCP2SCP. In the case of OMAP4,
USB2PHY is connected to ocp2scp.

This also includes device tree support for ocp2scp driver and
the documentation with device tree binding information is updated.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 .../devicetree/bindings/bus/omap-ocp2scp.txt       |   10 ++
 drivers/Kconfig                                    |    2 +
 drivers/Makefile                                   |    2 +
 drivers/bus/Kconfig                                |   15 +++
 drivers/bus/Makefile                               |    5 +
 drivers/bus/omap-ocp2scp.c                         |   98 ++++++++++++++++++++
 6 files changed, 132 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
 create mode 100644 drivers/bus/Kconfig
 create mode 100644 drivers/bus/Makefile
 create mode 100644 drivers/bus/omap-ocp2scp.c

diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
new file mode 100644
index 0000000..d2fe064
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
@@ -0,0 +1,10 @@
+* OMAP OCP2SCP - ocp interface to scp interface
+
+properties:
+- compatible : Should be "ti,omap-ocp2scp"
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+- ranges : the child address space are mapped 1:1 onto the parent address space
+- ti,hwmods : must be "ocp2scp_usb_phy"
+
+Sub-nodes:
+All the devices connected to ocp2scp are described using sub-node to ocp2scp
diff --git a/drivers/Kconfig b/drivers/Kconfig
index bfc9186..4fe1e4c 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -2,6 +2,8 @@ menu "Device Drivers"
 
 source "drivers/base/Kconfig"
 
+source "drivers/bus/Kconfig"
+
 source "drivers/connector/Kconfig"
 
 source "drivers/mtd/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index 2ba29ff..cac3819 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -5,6 +5,8 @@
 # Rewritten to use lists instead of if-statements.
 #
 
+obj-y				+= bus/
+
 # GPIO must come after pinctrl as gpios may need to mux pins etc
 obj-y				+= pinctrl/
 obj-y				+= gpio/
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
new file mode 100644
index 0000000..6270415
--- /dev/null
+++ b/drivers/bus/Kconfig
@@ -0,0 +1,15 @@
+#
+# Bus Devices
+#
+
+menu "Bus devices"
+
+config OMAP_OCP2SCP
+	tristate "OMAP OCP2SCP DRIVER"
+	help
+	  Driver to enable ocp2scp module which transforms ocp interface
+	  protocol to scp protocol. In OMAP4, USB PHY is connected via
+	  OCP2SCP and in OMAP5, both USB PHY and SATA PHY is connected via
+	  OCP2SCP.
+
+endmenu
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
new file mode 100644
index 0000000..0ec50bc
--- /dev/null
+++ b/drivers/bus/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the bus drivers.
+#
+
+obj-$(CONFIG_OMAP_OCP2SCP)	+= omap-ocp2scp.o
diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c
new file mode 100644
index 0000000..8c3db3a
--- /dev/null
+++ b/drivers/bus/omap-ocp2scp.c
@@ -0,0 +1,98 @@
+/*
+ * omap-ocp2scp.c - transform ocp interface protocol to scp protocol
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.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 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+
+static int ocp2scp_remove_devices(struct device *dev, void *c)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+
+	platform_device_unregister(pdev);
+
+	return 0;
+}
+
+static int __devinit omap_ocp2scp_probe(struct platform_device *pdev)
+{
+	int			ret;
+	struct device_node	*np = pdev->dev.of_node;
+
+	if (np) {
+		ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to add resources for ocp2scp child\n");
+			goto err0;
+		}
+	}
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+
+err0:
+	device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
+
+	return ret;
+}
+
+static int __devexit omap_ocp2scp_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+	device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id omap_ocp2scp_id_table[] = {
+	{ .compatible = "ti,omap-ocp2scp" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
+#endif
+
+static struct platform_driver omap_ocp2scp_driver = {
+	.probe		= omap_ocp2scp_probe,
+	.remove		= __devexit_p(omap_ocp2scp_remove),
+	.driver		= {
+		.name	= "omap-ocp2scp",
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(omap_ocp2scp_id_table),
+	},
+};
+
+static int __init omap_ocp2scp_init(void)
+{
+	return platform_driver_register(&omap_ocp2scp_driver);
+}
+arch_initcall(omap_ocp2scp_init);
+
+static void __exit omap_ocp2scp_exit(void)
+{
+	platform_driver_unregister(&omap_ocp2scp_driver);
+}
+module_exit(omap_ocp2scp_exit);
+
+MODULE_ALIAS("platform: omap-ocp2scp");
+MODULE_AUTHOR("Texas Instruments Inc.");
+MODULE_DESCRIPTION("OMAP OCP2SCP DRIVER");
+MODULE_LICENSE("GPLv2");
-- 
1.7.5.4

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH 2/2] arm/dts: omap4: Add ocp2scp data
@ 2012-07-16 14:13   ` Kishon Vijay Abraham I
  0 siblings, 0 replies; 18+ messages in thread
From: Kishon Vijay Abraham I @ 2012-07-16 14:13 UTC (permalink / raw)
  To: grant.likely, rob.herring, rob, linux, kishon, b-cousson, rnayak,
	tony, gregkh, ohad, linus.walleij, myungjoo.ham, rusty, swarren,
	devicetree-discuss, linux-doc, linux-kernel, linux-arm-kernel,
	balbi, linux-omap, linux-usb

Add ocp2scp data node in omap4 device tree file.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm/boot/dts/omap4.dtsi |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 359c497..bda5df3 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -272,5 +272,13 @@
 			ti,hwmods = "mmc5";
 			ti,needs-special-reset;
 		};
+
+		ocp2scp@4a0ad000  {
+			compatible = "ti,omap-ocp2scp";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+			ti,hwmods = "ocp2scp_usb_phy";
+		};
 	};
 };
-- 
1.7.5.4


^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH 2/2] arm/dts: omap4: Add ocp2scp data
@ 2012-07-16 14:13   ` Kishon Vijay Abraham I
  0 siblings, 0 replies; 18+ messages in thread
From: Kishon Vijay Abraham I @ 2012-07-16 14:13 UTC (permalink / raw)
  To: grant.likely-s3s/WqlpOiPyB63q8FvJNQ,
	rob.herring-bsGFqQB8/DxBDgjK7y7TUQ, rob-VoJi6FS/r0vR7s880joybQ,
	linux-lFZ/pmaqli7XmaaqVzeoHQ, kishon-l0cyMroinI0,
	b-cousson-l0cyMroinI0, rnayak-l0cyMroinI0,
	tony-4v6yS6AI5VpBDgjK7y7TUQ,
	gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r,
	ohad-Ix1uc/W3ht7QT0dZR+AlfA,
	linus.walleij-QSEj5FYQhm4dnm+yROfE0A,
	myungjoo.ham-Sze3O3UU22JBDgjK7y7TUQ,
	rusty-8n+1lVoiYb80n/F98K4Iww, swarren-DDmLM1+adcrQT0dZR+AlfA,
	devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
	linux-doc-u79uwXL29TY76Z2rM5mHXA,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
	balbi-l0cyMroinI0, linux-omap-u79uwXL29TY76Z2rM5mHXA,
	linux-usb-u79uwXL29TY76Z2rM5mHXA

Add ocp2scp data node in omap4 device tree file.

Signed-off-by: Kishon Vijay Abraham I <kishon-l0cyMroinI0@public.gmane.org>
---
 arch/arm/boot/dts/omap4.dtsi |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 359c497..bda5df3 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -272,5 +272,13 @@
 			ti,hwmods = "mmc5";
 			ti,needs-special-reset;
 		};
+
+		ocp2scp@4a0ad000  {
+			compatible = "ti,omap-ocp2scp";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+			ti,hwmods = "ocp2scp_usb_phy";
+		};
 	};
 };
-- 
1.7.5.4

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH 2/2] arm/dts: omap4: Add ocp2scp data
@ 2012-07-16 14:13   ` Kishon Vijay Abraham I
  0 siblings, 0 replies; 18+ messages in thread
From: Kishon Vijay Abraham I @ 2012-07-16 14:13 UTC (permalink / raw)
  To: linux-arm-kernel

Add ocp2scp data node in omap4 device tree file.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm/boot/dts/omap4.dtsi |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 359c497..bda5df3 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -272,5 +272,13 @@
 			ti,hwmods = "mmc5";
 			ti,needs-special-reset;
 		};
+
+		ocp2scp at 4a0ad000  {
+			compatible = "ti,omap-ocp2scp";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+			ti,hwmods = "ocp2scp_usb_phy";
+		};
 	};
 };
-- 
1.7.5.4

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* Re: [PATCH 1/2] drivers: bus: add a new driver for omap-ocp2scp
  2012-07-16 14:13   ` Kishon Vijay Abraham I
@ 2012-07-17  5:13     ` ABRAHAM, KISHON VIJAY
  -1 siblings, 0 replies; 18+ messages in thread
From: ABRAHAM, KISHON VIJAY @ 2012-07-17  5:13 UTC (permalink / raw)
  To: grant.likely, rob.herring, rob, linux, kishon, b-cousson, rnayak,
	tony, gregkh, ohad, linus.walleij, myungjoo.ham, rusty, swarren,
	devicetree-discuss, linux-doc, linux-kernel, linux-arm-kernel,
	balbi, linux-omap, linux-usb, arnd

+Arnd Bergmann

On Mon, Jul 16, 2012 at 7:43 PM, Kishon Vijay Abraham I <kishon@ti.com> wrote:
> Adds a new driver *omap-ocp2scp*. This driver takes the responsibility of
> creating all the devices that is connected to OCP2SCP. In the case of OMAP4,
> USB2PHY is connected to ocp2scp.
>
> This also includes device tree support for ocp2scp driver and
> the documentation with device tree binding information is updated.
>
> Cc: Felipe Balbi <balbi@ti.com>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
>  .../devicetree/bindings/bus/omap-ocp2scp.txt       |   10 ++
>  drivers/Kconfig                                    |    2 +
>  drivers/Makefile                                   |    2 +
>  drivers/bus/Kconfig                                |   15 +++
>  drivers/bus/Makefile                               |    5 +
>  drivers/bus/omap-ocp2scp.c                         |   98 ++++++++++++++++++++
>  6 files changed, 132 insertions(+), 0 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
>  create mode 100644 drivers/bus/Kconfig
>  create mode 100644 drivers/bus/Makefile
>  create mode 100644 drivers/bus/omap-ocp2scp.c
>
> diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
> new file mode 100644
> index 0000000..d2fe064
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
> @@ -0,0 +1,10 @@
> +* OMAP OCP2SCP - ocp interface to scp interface
> +
> +properties:
> +- compatible : Should be "ti,omap-ocp2scp"
> +- #address-cells, #size-cells : Must be present if the device has sub-nodes
> +- ranges : the child address space are mapped 1:1 onto the parent address space
> +- ti,hwmods : must be "ocp2scp_usb_phy"
> +
> +Sub-nodes:
> +All the devices connected to ocp2scp are described using sub-node to ocp2scp
> diff --git a/drivers/Kconfig b/drivers/Kconfig
> index bfc9186..4fe1e4c 100644
> --- a/drivers/Kconfig
> +++ b/drivers/Kconfig
> @@ -2,6 +2,8 @@ menu "Device Drivers"
>
>  source "drivers/base/Kconfig"
>
> +source "drivers/bus/Kconfig"
> +
>  source "drivers/connector/Kconfig"
>
>  source "drivers/mtd/Kconfig"
> diff --git a/drivers/Makefile b/drivers/Makefile
> index 2ba29ff..cac3819 100644
> --- a/drivers/Makefile
> +++ b/drivers/Makefile
> @@ -5,6 +5,8 @@
>  # Rewritten to use lists instead of if-statements.
>  #
>
> +obj-y                          += bus/
> +
>  # GPIO must come after pinctrl as gpios may need to mux pins etc
>  obj-y                          += pinctrl/
>  obj-y                          += gpio/
> diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
> new file mode 100644
> index 0000000..6270415
> --- /dev/null
> +++ b/drivers/bus/Kconfig
> @@ -0,0 +1,15 @@
> +#
> +# Bus Devices
> +#
> +
> +menu "Bus devices"
> +
> +config OMAP_OCP2SCP
> +       tristate "OMAP OCP2SCP DRIVER"
> +       help
> +         Driver to enable ocp2scp module which transforms ocp interface
> +         protocol to scp protocol. In OMAP4, USB PHY is connected via
> +         OCP2SCP and in OMAP5, both USB PHY and SATA PHY is connected via
> +         OCP2SCP.
> +
> +endmenu
> diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
> new file mode 100644
> index 0000000..0ec50bc
> --- /dev/null
> +++ b/drivers/bus/Makefile
> @@ -0,0 +1,5 @@
> +#
> +# Makefile for the bus drivers.
> +#
> +
> +obj-$(CONFIG_OMAP_OCP2SCP)     += omap-ocp2scp.o
> diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c
> new file mode 100644
> index 0000000..8c3db3a
> --- /dev/null
> +++ b/drivers/bus/omap-ocp2scp.c
> @@ -0,0 +1,98 @@
> +/*
> + * omap-ocp2scp.c - transform ocp interface protocol to scp protocol
> + *
> + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.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 of the License, or
> + * (at your option) any later version.
> + *
> + * Author: Kishon Vijay Abraham I <kishon@ti.com>
> + *
> + * 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.
> + *
> + */
> +
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/err.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/of.h>
> +#include <linux/of_platform.h>
> +
> +static int ocp2scp_remove_devices(struct device *dev, void *c)
> +{
> +       struct platform_device *pdev = to_platform_device(dev);
> +
> +       platform_device_unregister(pdev);
> +
> +       return 0;
> +}
> +
> +static int __devinit omap_ocp2scp_probe(struct platform_device *pdev)
> +{
> +       int                     ret;
> +       struct device_node      *np = pdev->dev.of_node;
> +
> +       if (np) {
> +               ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
> +               if (ret) {
> +                       dev_err(&pdev->dev, "failed to add resources for ocp2scp child\n");
> +                       goto err0;
> +               }
> +       }
> +       pm_runtime_enable(&pdev->dev);
> +
> +       return 0;
> +
> +err0:
> +       device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
> +
> +       return ret;
> +}
> +
> +static int __devexit omap_ocp2scp_remove(struct platform_device *pdev)
> +{
> +       pm_runtime_disable(&pdev->dev);
> +       device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
> +
> +       return 0;
> +}
> +
> +#ifdef CONFIG_OF
> +static const struct of_device_id omap_ocp2scp_id_table[] = {
> +       { .compatible = "ti,omap-ocp2scp" },
> +       {}
> +};
> +MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
> +#endif
> +
> +static struct platform_driver omap_ocp2scp_driver = {
> +       .probe          = omap_ocp2scp_probe,
> +       .remove         = __devexit_p(omap_ocp2scp_remove),
> +       .driver         = {
> +               .name   = "omap-ocp2scp",
> +               .owner  = THIS_MODULE,
> +               .of_match_table = of_match_ptr(omap_ocp2scp_id_table),
> +       },
> +};
> +
> +static int __init omap_ocp2scp_init(void)
> +{
> +       return platform_driver_register(&omap_ocp2scp_driver);
> +}
> +arch_initcall(omap_ocp2scp_init);
> +
> +static void __exit omap_ocp2scp_exit(void)
> +{
> +       platform_driver_unregister(&omap_ocp2scp_driver);
> +}
> +module_exit(omap_ocp2scp_exit);
> +
> +MODULE_ALIAS("platform: omap-ocp2scp");
> +MODULE_AUTHOR("Texas Instruments Inc.");
> +MODULE_DESCRIPTION("OMAP OCP2SCP DRIVER");
> +MODULE_LICENSE("GPLv2");
> --
> 1.7.5.4
>

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [PATCH 1/2] drivers: bus: add a new driver for omap-ocp2scp
@ 2012-07-17  5:13     ` ABRAHAM, KISHON VIJAY
  0 siblings, 0 replies; 18+ messages in thread
From: ABRAHAM, KISHON VIJAY @ 2012-07-17  5:13 UTC (permalink / raw)
  To: linux-arm-kernel

+Arnd Bergmann

On Mon, Jul 16, 2012 at 7:43 PM, Kishon Vijay Abraham I <kishon@ti.com> wrote:
> Adds a new driver *omap-ocp2scp*. This driver takes the responsibility of
> creating all the devices that is connected to OCP2SCP. In the case of OMAP4,
> USB2PHY is connected to ocp2scp.
>
> This also includes device tree support for ocp2scp driver and
> the documentation with device tree binding information is updated.
>
> Cc: Felipe Balbi <balbi@ti.com>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
>  .../devicetree/bindings/bus/omap-ocp2scp.txt       |   10 ++
>  drivers/Kconfig                                    |    2 +
>  drivers/Makefile                                   |    2 +
>  drivers/bus/Kconfig                                |   15 +++
>  drivers/bus/Makefile                               |    5 +
>  drivers/bus/omap-ocp2scp.c                         |   98 ++++++++++++++++++++
>  6 files changed, 132 insertions(+), 0 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
>  create mode 100644 drivers/bus/Kconfig
>  create mode 100644 drivers/bus/Makefile
>  create mode 100644 drivers/bus/omap-ocp2scp.c
>
> diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
> new file mode 100644
> index 0000000..d2fe064
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
> @@ -0,0 +1,10 @@
> +* OMAP OCP2SCP - ocp interface to scp interface
> +
> +properties:
> +- compatible : Should be "ti,omap-ocp2scp"
> +- #address-cells, #size-cells : Must be present if the device has sub-nodes
> +- ranges : the child address space are mapped 1:1 onto the parent address space
> +- ti,hwmods : must be "ocp2scp_usb_phy"
> +
> +Sub-nodes:
> +All the devices connected to ocp2scp are described using sub-node to ocp2scp
> diff --git a/drivers/Kconfig b/drivers/Kconfig
> index bfc9186..4fe1e4c 100644
> --- a/drivers/Kconfig
> +++ b/drivers/Kconfig
> @@ -2,6 +2,8 @@ menu "Device Drivers"
>
>  source "drivers/base/Kconfig"
>
> +source "drivers/bus/Kconfig"
> +
>  source "drivers/connector/Kconfig"
>
>  source "drivers/mtd/Kconfig"
> diff --git a/drivers/Makefile b/drivers/Makefile
> index 2ba29ff..cac3819 100644
> --- a/drivers/Makefile
> +++ b/drivers/Makefile
> @@ -5,6 +5,8 @@
>  # Rewritten to use lists instead of if-statements.
>  #
>
> +obj-y                          += bus/
> +
>  # GPIO must come after pinctrl as gpios may need to mux pins etc
>  obj-y                          += pinctrl/
>  obj-y                          += gpio/
> diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
> new file mode 100644
> index 0000000..6270415
> --- /dev/null
> +++ b/drivers/bus/Kconfig
> @@ -0,0 +1,15 @@
> +#
> +# Bus Devices
> +#
> +
> +menu "Bus devices"
> +
> +config OMAP_OCP2SCP
> +       tristate "OMAP OCP2SCP DRIVER"
> +       help
> +         Driver to enable ocp2scp module which transforms ocp interface
> +         protocol to scp protocol. In OMAP4, USB PHY is connected via
> +         OCP2SCP and in OMAP5, both USB PHY and SATA PHY is connected via
> +         OCP2SCP.
> +
> +endmenu
> diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
> new file mode 100644
> index 0000000..0ec50bc
> --- /dev/null
> +++ b/drivers/bus/Makefile
> @@ -0,0 +1,5 @@
> +#
> +# Makefile for the bus drivers.
> +#
> +
> +obj-$(CONFIG_OMAP_OCP2SCP)     += omap-ocp2scp.o
> diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c
> new file mode 100644
> index 0000000..8c3db3a
> --- /dev/null
> +++ b/drivers/bus/omap-ocp2scp.c
> @@ -0,0 +1,98 @@
> +/*
> + * omap-ocp2scp.c - transform ocp interface protocol to scp protocol
> + *
> + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.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 of the License, or
> + * (at your option) any later version.
> + *
> + * Author: Kishon Vijay Abraham I <kishon@ti.com>
> + *
> + * 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.
> + *
> + */
> +
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/err.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/of.h>
> +#include <linux/of_platform.h>
> +
> +static int ocp2scp_remove_devices(struct device *dev, void *c)
> +{
> +       struct platform_device *pdev = to_platform_device(dev);
> +
> +       platform_device_unregister(pdev);
> +
> +       return 0;
> +}
> +
> +static int __devinit omap_ocp2scp_probe(struct platform_device *pdev)
> +{
> +       int                     ret;
> +       struct device_node      *np = pdev->dev.of_node;
> +
> +       if (np) {
> +               ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
> +               if (ret) {
> +                       dev_err(&pdev->dev, "failed to add resources for ocp2scp child\n");
> +                       goto err0;
> +               }
> +       }
> +       pm_runtime_enable(&pdev->dev);
> +
> +       return 0;
> +
> +err0:
> +       device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
> +
> +       return ret;
> +}
> +
> +static int __devexit omap_ocp2scp_remove(struct platform_device *pdev)
> +{
> +       pm_runtime_disable(&pdev->dev);
> +       device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
> +
> +       return 0;
> +}
> +
> +#ifdef CONFIG_OF
> +static const struct of_device_id omap_ocp2scp_id_table[] = {
> +       { .compatible = "ti,omap-ocp2scp" },
> +       {}
> +};
> +MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
> +#endif
> +
> +static struct platform_driver omap_ocp2scp_driver = {
> +       .probe          = omap_ocp2scp_probe,
> +       .remove         = __devexit_p(omap_ocp2scp_remove),
> +       .driver         = {
> +               .name   = "omap-ocp2scp",
> +               .owner  = THIS_MODULE,
> +               .of_match_table = of_match_ptr(omap_ocp2scp_id_table),
> +       },
> +};
> +
> +static int __init omap_ocp2scp_init(void)
> +{
> +       return platform_driver_register(&omap_ocp2scp_driver);
> +}
> +arch_initcall(omap_ocp2scp_init);
> +
> +static void __exit omap_ocp2scp_exit(void)
> +{
> +       platform_driver_unregister(&omap_ocp2scp_driver);
> +}
> +module_exit(omap_ocp2scp_exit);
> +
> +MODULE_ALIAS("platform: omap-ocp2scp");
> +MODULE_AUTHOR("Texas Instruments Inc.");
> +MODULE_DESCRIPTION("OMAP OCP2SCP DRIVER");
> +MODULE_LICENSE("GPLv2");
> --
> 1.7.5.4
>

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [PATCH 1/2] drivers: bus: add a new driver for omap-ocp2scp
@ 2012-07-17  8:00       ` Arnd Bergmann
  0 siblings, 0 replies; 18+ messages in thread
From: Arnd Bergmann @ 2012-07-17  8:00 UTC (permalink / raw)
  To: ABRAHAM, KISHON VIJAY
  Cc: grant.likely, rob.herring, rob, linux, b-cousson, rnayak, tony,
	gregkh, ohad, linus.walleij, myungjoo.ham, rusty, swarren,
	devicetree-discuss, linux-doc, linux-kernel, linux-arm-kernel,
	balbi, linux-omap, linux-usb

On Tuesday 17 July 2012, ABRAHAM, KISHON VIJAY wrote:
> On Mon, Jul 16, 2012 at 7:43 PM, Kishon Vijay Abraham I <kishon@ti.com> wrote:
> > Adds a new driver *omap-ocp2scp*. This driver takes the responsibility of
> > creating all the devices that is connected to OCP2SCP. In the case of OMAP4,
> > USB2PHY is connected to ocp2scp.
> >
> > This also includes device tree support for ocp2scp driver and
> > the documentation with device tree binding information is updated.
> >
> > Cc: Felipe Balbi <balbi@ti.com>
> > Cc: Arnd Bergmann <arnd@arndb.de>
> > Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

Acked-by: Arnd Bergmann <arnd@arndb.de>

Now that we've found a place for the code to live, do we know which maintainer is
going to pick it up? If nobody else volunteers, we can take it through the
arm-soc tree.

	Arnd


^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [PATCH 1/2] drivers: bus: add a new driver for omap-ocp2scp
@ 2012-07-17  8:00       ` Arnd Bergmann
  0 siblings, 0 replies; 18+ messages in thread
From: Arnd Bergmann @ 2012-07-17  8:00 UTC (permalink / raw)
  To: ABRAHAM, KISHON VIJAY
  Cc: ohad-Ix1uc/W3ht7QT0dZR+AlfA, linux-usb-u79uwXL29TY76Z2rM5mHXA,
	rusty-8n+1lVoiYb80n/F98K4Iww, linux-lFZ/pmaqli7XmaaqVzeoHQ,
	linux-doc-u79uwXL29TY76Z2rM5mHXA,
	gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA,
	rob.herring-bsGFqQB8/DxBDgjK7y7TUQ,
	myungjoo.ham-Sze3O3UU22JBDgjK7y7TUQ, balbi-l0cyMroinI0,
	swarren-DDmLM1+adcrQT0dZR+AlfA,
	linux-omap-u79uwXL29TY76Z2rM5mHXA,
	devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r

On Tuesday 17 July 2012, ABRAHAM, KISHON VIJAY wrote:
> On Mon, Jul 16, 2012 at 7:43 PM, Kishon Vijay Abraham I <kishon-l0cyMroinI0@public.gmane.org> wrote:
> > Adds a new driver *omap-ocp2scp*. This driver takes the responsibility of
> > creating all the devices that is connected to OCP2SCP. In the case of OMAP4,
> > USB2PHY is connected to ocp2scp.
> >
> > This also includes device tree support for ocp2scp driver and
> > the documentation with device tree binding information is updated.
> >
> > Cc: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
> > Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
> > Signed-off-by: Kishon Vijay Abraham I <kishon-l0cyMroinI0@public.gmane.org>

Acked-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>

Now that we've found a place for the code to live, do we know which maintainer is
going to pick it up? If nobody else volunteers, we can take it through the
arm-soc tree.

	Arnd

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [PATCH 1/2] drivers: bus: add a new driver for omap-ocp2scp
@ 2012-07-17  8:00       ` Arnd Bergmann
  0 siblings, 0 replies; 18+ messages in thread
From: Arnd Bergmann @ 2012-07-17  8:00 UTC (permalink / raw)
  To: linux-arm-kernel

On Tuesday 17 July 2012, ABRAHAM, KISHON VIJAY wrote:
> On Mon, Jul 16, 2012 at 7:43 PM, Kishon Vijay Abraham I <kishon@ti.com> wrote:
> > Adds a new driver *omap-ocp2scp*. This driver takes the responsibility of
> > creating all the devices that is connected to OCP2SCP. In the case of OMAP4,
> > USB2PHY is connected to ocp2scp.
> >
> > This also includes device tree support for ocp2scp driver and
> > the documentation with device tree binding information is updated.
> >
> > Cc: Felipe Balbi <balbi@ti.com>
> > Cc: Arnd Bergmann <arnd@arndb.de>
> > Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

Acked-by: Arnd Bergmann <arnd@arndb.de>

Now that we've found a place for the code to live, do we know which maintainer is
going to pick it up? If nobody else volunteers, we can take it through the
arm-soc tree.

	Arnd

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [PATCH 2/2] arm/dts: omap4: Add ocp2scp data
  2012-07-16 14:13   ` Kishon Vijay Abraham I
@ 2012-07-17 12:36     ` Sergei Shtylyov
  -1 siblings, 0 replies; 18+ messages in thread
From: Sergei Shtylyov @ 2012-07-17 12:36 UTC (permalink / raw)
  To: Kishon Vijay Abraham I
  Cc: grant.likely, rob.herring, rob, linux, b-cousson, rnayak, tony,
	gregkh, ohad, linus.walleij, myungjoo.ham, rusty, swarren,
	devicetree-discuss, linux-doc, linux-kernel, linux-arm-kernel,
	balbi, linux-omap, linux-usb

Hello.

On 16-07-2012 18:13, Kishon Vijay Abraham I wrote:

> Add ocp2scp data node in omap4 device tree file.

> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
>   arch/arm/boot/dts/omap4.dtsi |    8 ++++++++
>   1 files changed, 8 insertions(+), 0 deletions(-)

> diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
> index 359c497..bda5df3 100644
> --- a/arch/arm/boot/dts/omap4.dtsi
> +++ b/arch/arm/boot/dts/omap4.dtsi
> @@ -272,5 +272,13 @@
>   			ti,hwmods = "mmc5";
>   			ti,needs-special-reset;
>   		};
> +
> +		ocp2scp@4a0ad000  {

    "reg" property is absent, so why do you give the node name an address postfix?

> +			compatible = "ti,omap-ocp2scp";
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges;
> +			ti,hwmods = "ocp2scp_usb_phy";
> +		};

WBR, Sergei



^ permalink raw reply	[flat|nested] 18+ messages in thread

* [PATCH 2/2] arm/dts: omap4: Add ocp2scp data
@ 2012-07-17 12:36     ` Sergei Shtylyov
  0 siblings, 0 replies; 18+ messages in thread
From: Sergei Shtylyov @ 2012-07-17 12:36 UTC (permalink / raw)
  To: linux-arm-kernel

Hello.

On 16-07-2012 18:13, Kishon Vijay Abraham I wrote:

> Add ocp2scp data node in omap4 device tree file.

> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
>   arch/arm/boot/dts/omap4.dtsi |    8 ++++++++
>   1 files changed, 8 insertions(+), 0 deletions(-)

> diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
> index 359c497..bda5df3 100644
> --- a/arch/arm/boot/dts/omap4.dtsi
> +++ b/arch/arm/boot/dts/omap4.dtsi
> @@ -272,5 +272,13 @@
>   			ti,hwmods = "mmc5";
>   			ti,needs-special-reset;
>   		};
> +
> +		ocp2scp at 4a0ad000  {

    "reg" property is absent, so why do you give the node name an address postfix?

> +			compatible = "ti,omap-ocp2scp";
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges;
> +			ti,hwmods = "ocp2scp_usb_phy";
> +		};

WBR, Sergei

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [PATCH 2/2] arm/dts: omap4: Add ocp2scp data
  2012-07-17 12:36     ` Sergei Shtylyov
@ 2012-07-18  5:43       ` ABRAHAM, KISHON VIJAY
  -1 siblings, 0 replies; 18+ messages in thread
From: ABRAHAM, KISHON VIJAY @ 2012-07-18  5:43 UTC (permalink / raw)
  To: Sergei Shtylyov
  Cc: grant.likely, rob.herring, rob, linux, b-cousson, rnayak, tony,
	gregkh, ohad, linus.walleij, myungjoo.ham, rusty, swarren,
	devicetree-discuss, linux-doc, linux-kernel, linux-arm-kernel,
	balbi, linux-omap, linux-usb

Hi,

On Tue, Jul 17, 2012 at 6:06 PM, Sergei Shtylyov <sshtylyov@mvista.com> wrote:
> Hello.
>
>
> On 16-07-2012 18:13, Kishon Vijay Abraham I wrote:
>
>> Add ocp2scp data node in omap4 device tree file.
>
>
>> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
>> ---
>>   arch/arm/boot/dts/omap4.dtsi |    8 ++++++++
>>   1 files changed, 8 insertions(+), 0 deletions(-)
>
>
>> diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
>> index 359c497..bda5df3 100644
>> --- a/arch/arm/boot/dts/omap4.dtsi
>> +++ b/arch/arm/boot/dts/omap4.dtsi
>> @@ -272,5 +272,13 @@
>>                         ti,hwmods = "mmc5";
>>                         ti,needs-special-reset;
>>                 };
>> +
>> +               ocp2scp@4a0ad000  {
>
>
>    "reg" property is absent, so why do you give the node name an address
> postfix?
When I was initially developing, I had "reg" property populated. Those
info is now obtained from *ti,hwmods*. I'll resend the patch removing
it.

Thanks
Kishon

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [PATCH 2/2] arm/dts: omap4: Add ocp2scp data
@ 2012-07-18  5:43       ` ABRAHAM, KISHON VIJAY
  0 siblings, 0 replies; 18+ messages in thread
From: ABRAHAM, KISHON VIJAY @ 2012-07-18  5:43 UTC (permalink / raw)
  To: linux-arm-kernel

Hi,

On Tue, Jul 17, 2012 at 6:06 PM, Sergei Shtylyov <sshtylyov@mvista.com> wrote:
> Hello.
>
>
> On 16-07-2012 18:13, Kishon Vijay Abraham I wrote:
>
>> Add ocp2scp data node in omap4 device tree file.
>
>
>> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
>> ---
>>   arch/arm/boot/dts/omap4.dtsi |    8 ++++++++
>>   1 files changed, 8 insertions(+), 0 deletions(-)
>
>
>> diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
>> index 359c497..bda5df3 100644
>> --- a/arch/arm/boot/dts/omap4.dtsi
>> +++ b/arch/arm/boot/dts/omap4.dtsi
>> @@ -272,5 +272,13 @@
>>                         ti,hwmods = "mmc5";
>>                         ti,needs-special-reset;
>>                 };
>> +
>> +               ocp2scp at 4a0ad000  {
>
>
>    "reg" property is absent, so why do you give the node name an address
> postfix?
When I was initially developing, I had "reg" property populated. Those
info is now obtained from *ti,hwmods*. I'll resend the patch removing
it.

Thanks
Kishon

^ permalink raw reply	[flat|nested] 18+ messages in thread

end of thread, other threads:[~2012-07-18  5:43 UTC | newest]

Thread overview: 18+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-07-16 14:13 [PATCH 0/2] omap: add ocp2scp as a bus driver Kishon Vijay Abraham I
2012-07-16 14:13 ` Kishon Vijay Abraham I
2012-07-16 14:13 ` Kishon Vijay Abraham I
2012-07-16 14:13 ` [PATCH 1/2] drivers: bus: add a new driver for omap-ocp2scp Kishon Vijay Abraham I
2012-07-16 14:13   ` Kishon Vijay Abraham I
2012-07-16 14:13   ` Kishon Vijay Abraham I
2012-07-17  5:13   ` ABRAHAM, KISHON VIJAY
2012-07-17  5:13     ` ABRAHAM, KISHON VIJAY
2012-07-17  8:00     ` Arnd Bergmann
2012-07-17  8:00       ` Arnd Bergmann
2012-07-17  8:00       ` Arnd Bergmann
2012-07-16 14:13 ` [PATCH 2/2] arm/dts: omap4: Add ocp2scp data Kishon Vijay Abraham I
2012-07-16 14:13   ` Kishon Vijay Abraham I
2012-07-16 14:13   ` Kishon Vijay Abraham I
2012-07-17 12:36   ` Sergei Shtylyov
2012-07-17 12:36     ` Sergei Shtylyov
2012-07-18  5:43     ` ABRAHAM, KISHON VIJAY
2012-07-18  5:43       ` ABRAHAM, KISHON VIJAY

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