[PATCH 1/8] USB: EHCI: make ehci-spear a separate driver

[PATCH 1/8] USB: EHCI: make ehci-spear a separate driver

[manjunath.goudar at linaro.org]

From: Manjunath Goudar <manjunath.goudar@linaro.org>

Separate the Spear host controller driver from ehci-hcd host code
into its own driver module.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: linux-usb at vger.kernel.org
Cc: spear-devel at list.st.com
---
 drivers/usb/host/Kconfig      |    8 +++
 drivers/usb/host/Makefile     |    2 +-
 drivers/usb/host/ehci-hcd.c   |    8 +--
 drivers/usb/host/ehci-spear.c |  131 +++++++++++++++++++++--------------------
 4 files changed, 78 insertions(+), 71 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 3a21c5d..15e8032 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -162,6 +162,14 @@ config USB_EHCI_HCD_OMAP
 	  Enables support for the on-chip EHCI controller on
 	  OMAP3 and later chips.
 
+config USB_EHCI_HCD_SPEAR
+        tristate "Support for ST SPEAr on-chip EHCI USB controller"
+        depends on USB_EHCI_HCD && PLAT_SPEAR
+        default y
+        ---help---
+          Enables support for the on-chip EHCI controller on
+          ST SPEAr chips.
+
 config USB_EHCI_MSM
 	bool "Support for MSM on-chip EHCI USB controller"
 	depends on USB_EHCI_HCD && ARCH_MSM
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 001fbff..c8fcde9 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -27,7 +27,7 @@ obj-$(CONFIG_USB_EHCI_HCD)	+= ehci-hcd.o
 obj-$(CONFIG_USB_EHCI_PCI)	+= ehci-pci.o
 obj-$(CONFIG_USB_EHCI_HCD_PLATFORM)	+= ehci-platform.o
 obj-$(CONFIG_USB_EHCI_MXC)	+= ehci-mxc.o
-
+obj-$(CONFIG_USB_EHCI_HCD_SPEAR)+= ehci-spear.o
 obj-$(CONFIG_USB_OXU210HP_HCD)	+= oxu210hp-hcd.o
 obj-$(CONFIG_USB_ISP116X_HCD)	+= isp116x-hcd.o
 obj-$(CONFIG_USB_ISP1362_HCD)	+= isp1362-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index b416a3f..be7247b 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1274,7 +1274,7 @@ MODULE_LICENSE ("GPL");
 
 #ifdef CONFIG_PLAT_ORION
 #include "ehci-orion.c"
-#define	PLATFORM_DRIVER		ehci_orion_driver
+#define        PLATFORM_DRIVER         ehci_orion_driver
 #endif
 
 #ifdef CONFIG_USB_W90X900_EHCI
@@ -1297,11 +1297,6 @@ MODULE_LICENSE ("GPL");
 #define	PLATFORM_DRIVER		vt8500_ehci_driver
 #endif
 
-#ifdef CONFIG_PLAT_SPEAR
-#include "ehci-spear.c"
-#define PLATFORM_DRIVER		spear_ehci_hcd_driver
-#endif
-
 #ifdef CONFIG_USB_EHCI_MSM
 #include "ehci-msm.c"
 #define PLATFORM_DRIVER		ehci_msm_driver
@@ -1347,6 +1342,7 @@ MODULE_LICENSE ("GPL");
 	!IS_ENABLED(CONFIG_USB_CHIPIDEA_HOST) && \
 	!IS_ENABLED(CONFIG_USB_EHCI_MXC) && \
 	!defined(PLATFORM_DRIVER) && \
+	!IS_ENABLED(CONFIG_PLAT_SPEAR) && \
 	!defined(PS3_SYSTEM_BUS_DRIVER) && \
 	!defined(OF_PLATFORM_DRIVER) && \
 	!defined(XILINX_OF_PLATFORM_DRIVER)
diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
index 466c1bb..0d9ed11 100644
--- a/drivers/usb/host/ehci-spear.c
+++ b/drivers/usb/host/ehci-spear.c
@@ -1,5 +1,5 @@
 /*
-* Driver for EHCI HCD on SPEAR SOC
+* Driver for EHCI HCD on SPEAr SOC
 *
 * Copyright (C) 2010 ST Micro Electronics,
 * Deepak Sikri <deepak.sikri@st.com>
@@ -12,29 +12,41 @@
 */
 
 #include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
 #include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
 
-struct spear_ehci {
+#include "ehci.h"
+
+#define DRIVER_DESC "EHCI SPEAr driver"
+
+static const char hcd_name[] = "ehci-SPEAr";
+
+struct SPEAr_ehci {
 	struct ehci_hcd ehci;
 	struct clk *clk;
 };
 
-#define to_spear_ehci(hcd)	(struct spear_ehci *)hcd_to_ehci(hcd)
+#define to_SPEAr_ehci(hcd)	(struct SPEAr_ehci *)hcd_to_ehci(hcd)
 
-static void spear_start_ehci(struct spear_ehci *ehci)
+static void SPEAr_start_ehci(struct SPEAr_ehci *ehci)
 {
 	clk_prepare_enable(ehci->clk);
 }
 
-static void spear_stop_ehci(struct spear_ehci *ehci)
+static void SPEAr_stop_ehci(struct SPEAr_ehci *ehci)
 {
 	clk_disable_unprepare(ehci->clk);
 }
 
-static int ehci_spear_setup(struct usb_hcd *hcd)
+static int ehci_SPEAr_setup(struct usb_hcd *hcd)
 {
 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
 
@@ -43,43 +55,10 @@ static int ehci_spear_setup(struct usb_hcd *hcd)
 
 	return ehci_setup(hcd);
 }
-
-static const struct hc_driver ehci_spear_hc_driver = {
-	.description			= hcd_name,
-	.product_desc			= "SPEAr EHCI",
-	.hcd_priv_size			= sizeof(struct spear_ehci),
-
-	/* generic hardware linkage */
-	.irq				= ehci_irq,
-	.flags				= HCD_MEMORY | HCD_USB2,
-
-	/* basic lifecycle operations */
-	.reset				= ehci_spear_setup,
-	.start				= ehci_run,
-	.stop				= ehci_stop,
-	.shutdown			= ehci_shutdown,
-
-	/* managing i/o requests and associated device resources */
-	.urb_enqueue			= ehci_urb_enqueue,
-	.urb_dequeue			= ehci_urb_dequeue,
-	.endpoint_disable		= ehci_endpoint_disable,
-	.endpoint_reset			= ehci_endpoint_reset,
-
-	/* scheduling support */
-	.get_frame_number		= ehci_get_frame,
-
-	/* root hub support */
-	.hub_status_data		= ehci_hub_status_data,
-	.hub_control			= ehci_hub_control,
-	.bus_suspend			= ehci_bus_suspend,
-	.bus_resume			= ehci_bus_resume,
-	.relinquish_port		= ehci_relinquish_port,
-	.port_handed_over		= ehci_port_handed_over,
-	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,
-};
+static struct hc_driver __read_mostly ehci_SPEAr_hc_driver;
 
 #ifdef CONFIG_PM
-static int ehci_spear_drv_suspend(struct device *dev)
+static int ehci_SPEAr_drv_suspend(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
 	bool do_wakeup = device_may_wakeup(dev);
@@ -87,7 +66,7 @@ static int ehci_spear_drv_suspend(struct device *dev)
 	return ehci_suspend(hcd, do_wakeup);
 }
 
-static int ehci_spear_drv_resume(struct device *dev)
+static int ehci_SPEAr_drv_resume(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
 
@@ -96,18 +75,18 @@ static int ehci_spear_drv_resume(struct device *dev)
 }
 #endif /* CONFIG_PM */
 
-static SIMPLE_DEV_PM_OPS(ehci_spear_pm_ops, ehci_spear_drv_suspend,
-		ehci_spear_drv_resume);
+static SIMPLE_DEV_PM_OPS(ehci_SPEAr_pm_ops, ehci_SPEAr_drv_suspend,
+		ehci_SPEAr_drv_resume);
 
-static u64 spear_ehci_dma_mask = DMA_BIT_MASK(32);
+static u64 SPEAr_ehci_dma_mask = DMA_BIT_MASK(32);
 
-static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
+static int SPEAr_ehci_hcd_drv_probe(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd ;
-	struct spear_ehci *ehci;
+	struct SPEAr_ehci *ehci;
 	struct resource *res;
 	struct clk *usbh_clk;
-	const struct hc_driver *driver = &ehci_spear_hc_driver;
+	const struct hc_driver *driver = &ehci_SPEAr_hc_driver;
 	int irq, retval;
 
 	if (usb_disabled())
@@ -125,7 +104,7 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
 	 * Once we have dma capability bindings this can go away.
 	 */
 	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &spear_ehci_dma_mask;
+		pdev->dev.dma_mask = &SPEAr_ehci_dma_mask;
 
 	usbh_clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(usbh_clk)) {
@@ -161,10 +140,10 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
 		goto err_put_hcd;
 	}
 
-	ehci = (struct spear_ehci *)hcd_to_ehci(hcd);
+	ehci = (struct SPEAr_ehci *)hcd_to_ehci(hcd);
 	ehci->clk = usbh_clk;
 
-	spear_start_ehci(ehci);
+	SPEAr_start_ehci(ehci);
 	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (retval)
 		goto err_stop_ehci;
@@ -172,7 +151,7 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
 	return retval;
 
 err_stop_ehci:
-	spear_stop_ehci(ehci);
+	SPEAr_stop_ehci(ehci);
 err_put_hcd:
 	usb_put_hcd(hcd);
 fail:
@@ -181,10 +160,10 @@ fail:
 	return retval ;
 }
 
-static int spear_ehci_hcd_drv_remove(struct platform_device *pdev)
+static int SPEAr_ehci_hcd_drv_remove(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-	struct spear_ehci *ehci_p = to_spear_ehci(hcd);
+	struct SPEAr_ehci *ehci_p = to_SPEAr_ehci(hcd);
 
 	if (!hcd)
 		return 0;
@@ -193,27 +172,51 @@ static int spear_ehci_hcd_drv_remove(struct platform_device *pdev)
 	usb_remove_hcd(hcd);
 
 	if (ehci_p->clk)
-		spear_stop_ehci(ehci_p);
+		SPEAr_stop_ehci(ehci_p);
 	usb_put_hcd(hcd);
 
 	return 0;
 }
 
-static struct of_device_id spear_ehci_id_table[] = {
-	{ .compatible = "st,spear600-ehci", },
+static struct of_device_id SPEAr_ehci_id_table[] = {
+	{ .compatible = "st,SPEAr600-ehci", },
 	{ },
 };
 
-static struct platform_driver spear_ehci_hcd_driver = {
-	.probe		= spear_ehci_hcd_drv_probe,
-	.remove		= spear_ehci_hcd_drv_remove,
+static struct platform_driver SPEAr_ehci_hcd_driver = {
+	.probe		= SPEAr_ehci_hcd_drv_probe,
+	.remove		= SPEAr_ehci_hcd_drv_remove,
 	.shutdown	= usb_hcd_platform_shutdown,
 	.driver		= {
-		.name = "spear-ehci",
+		.name = hcd_name,
 		.bus = &platform_bus_type,
-		.pm = &ehci_spear_pm_ops,
-		.of_match_table = of_match_ptr(spear_ehci_id_table),
+		.pm = &ehci_SPEAr_pm_ops,
+		.of_match_table = of_match_ptr(SPEAr_ehci_id_table),
 	}
 };
 
-MODULE_ALIAS("platform:spear-ehci");
+
+static const struct ehci_driver_overrides SPEAr_overrides __initdata = {
+	.reset = ehci_SPEAr_setup,
+};
+
+static int __init ehci_SPEAr_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+	ehci_init_driver(&ehci_SPEAr_hc_driver, &SPEAr_overrides);
+	return platform_driver_register(&SPEAr_ehci_hcd_driver);
+}
+module_init(ehci_SPEAr_init);
+
+static void __exit ehci_SPEAr_cleanup(void)
+{
+	platform_driver_unregister(&SPEAr_ehci_hcd_driver);
+}
+module_exit(ehci_SPEAr_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
-- 
1.7.9.5

[PATCH 2/8] USB: EHCI: make ehci-atmel a separate driver

[manjunath.goudar at linaro.org]

From: Manjunath Goudar <manjunath.goudar@linaro.org>

Separate the Atmel host controller driver from ehci-hcd host code
into its own driver module.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Greg KH <greg@kroah.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: linux-usb at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
---
 drivers/usb/host/Kconfig      |    8 +++++
 drivers/usb/host/Makefile     |    1 +
 drivers/usb/host/ehci-atmel.c |   77 ++++++++++++++++++++++-------------------
 drivers/usb/host/ehci-hcd.c   |   10 ++----
 drivers/usb/host/ehci.h       |    2 +-
 5 files changed, 54 insertions(+), 44 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 15e8032..1ef37d7 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -170,6 +170,14 @@ config USB_EHCI_HCD_SPEAR
           Enables support for the on-chip EHCI controller on
           ST SPEAr chips.
 
+config USB_EHCI_HCD_AT91
+        tristate  "Support for Atmel on-chip EHCI USB controller"
+        depends on USB_EHCI_HCD && ARCH_AT91
+        default y
+        ---help---
+          Enables support for the on-chip EHCI controller on
+          Atmel chips.
+
 config USB_EHCI_MSM
 	bool "Support for MSM on-chip EHCI USB controller"
 	depends on USB_EHCI_HCD && ARCH_MSM
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index c8fcde9..b301243 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_USB_EHCI_HCD_PLATFORM)	+= ehci-platform.o
 obj-$(CONFIG_USB_EHCI_MXC)	+= ehci-mxc.o
 obj-$(CONFIG_USB_EHCI_HCD_SPEAR)+= ehci-spear.o
 obj-$(CONFIG_USB_OXU210HP_HCD)	+= oxu210hp-hcd.o
+obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
 obj-$(CONFIG_USB_ISP116X_HCD)	+= isp116x-hcd.o
 obj-$(CONFIG_USB_ISP1362_HCD)	+= isp1362-hcd.o
 obj-$(CONFIG_USB_OHCI_HCD)	+= ohci-hcd.o
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 27639487..e6a50f0 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -15,6 +15,19 @@
 #include <linux/platform_device.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+
+#include "ehci.h"
+
+#define DRIVER_DESC "EHCI atmel driver"
+
+static const char hcd_name[] = "ehci-atmel";
+static struct hc_driver __read_mostly ehci_atmel_hc_driver;
 
 /* interface and function clocks */
 static struct clk *iclk, *fclk;
@@ -60,41 +73,6 @@ static int ehci_atmel_setup(struct usb_hcd *hcd)
 	return ehci_setup(hcd);
 }
 
-static const struct hc_driver ehci_atmel_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "Atmel EHCI UHP HS",
-	.hcd_priv_size		= sizeof(struct ehci_hcd),
-
-	/* generic hardware linkage */
-	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
-
-	/* basic lifecycle operations */
-	.reset			= ehci_atmel_setup,
-	.start			= ehci_run,
-	.stop			= ehci_stop,
-	.shutdown		= ehci_shutdown,
-
-	/* managing i/o requests and associated device resources */
-	.urb_enqueue		= ehci_urb_enqueue,
-	.urb_dequeue		= ehci_urb_dequeue,
-	.endpoint_disable	= ehci_endpoint_disable,
-	.endpoint_reset		= ehci_endpoint_reset,
-
-	/* scheduling support */
-	.get_frame_number	= ehci_get_frame,
-
-	/* root hub support */
-	.hub_status_data	= ehci_hub_status_data,
-	.hub_control		= ehci_hub_control,
-	.bus_suspend		= ehci_bus_suspend,
-	.bus_resume		= ehci_bus_resume,
-	.relinquish_port	= ehci_relinquish_port,
-	.port_handed_over	= ehci_port_handed_over,
-
-	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,
-};
-
 static u64 at91_ehci_dma_mask = DMA_BIT_MASK(32);
 
 static int ehci_atmel_drv_probe(struct platform_device *pdev)
@@ -210,7 +188,34 @@ static struct platform_driver ehci_atmel_driver = {
 	.remove		= ehci_atmel_drv_remove,
 	.shutdown	= usb_hcd_platform_shutdown,
 	.driver		= {
-		.name	= "atmel-ehci",
+		.name	= hcd_name,
 		.of_match_table	= of_match_ptr(atmel_ehci_dt_ids),
 	},
 };
+
+static const struct ehci_driver_overrides atmel_overrides __initdata = {
+	.reset = ehci_atmel_setup,
+};
+
+static int __init ehci_atmel_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+	ehci_init_driver(&ehci_atmel_hc_driver, &atmel_overrides);
+	return platform_driver_register(&ehci_atmel_driver);
+}
+module_init(ehci_atmel_init);
+
+static void __exit ehci_atmel_cleanup(void)
+{
+	platform_driver_unregister(&ehci_atmel_driver);
+}
+module_exit(ehci_atmel_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+
+MODULE_ALIAS("platform:ehci-atmel");
+MODULE_AUTHOR("Nicolas Ferre");
+MODULE_LICENSE("GPL");
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index be7247b..08e9fdf 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -352,7 +352,7 @@ static void ehci_silence_controller(struct ehci_hcd *ehci)
  * This forcibly disables dma and IRQs, helping kexec and other cases
  * where the next system software may expect clean state.
  */
-static void ehci_shutdown(struct usb_hcd *hcd)
+void ehci_shutdown(struct usb_hcd *hcd)
 {
 	struct ehci_hcd	*ehci = hcd_to_ehci(hcd);
 
@@ -366,7 +366,7 @@ static void ehci_shutdown(struct usb_hcd *hcd)
 
 	hrtimer_cancel(&ehci->hrtimer);
 }
-
+EXPORT_SYMBOL_GPL(ehci_shutdown);
 /*-------------------------------------------------------------------------*/
 
 /*
@@ -1282,11 +1282,6 @@ MODULE_LICENSE ("GPL");
 #define	PLATFORM_DRIVER		ehci_hcd_w90x900_driver
 #endif
 
-#ifdef CONFIG_ARCH_AT91
-#include "ehci-atmel.c"
-#define	PLATFORM_DRIVER		ehci_atmel_driver
-#endif
-
 #ifdef CONFIG_USB_OCTEON_EHCI
 #include "ehci-octeon.c"
 #define PLATFORM_DRIVER		ehci_octeon_driver
@@ -1343,6 +1338,7 @@ MODULE_LICENSE ("GPL");
 	!IS_ENABLED(CONFIG_USB_EHCI_MXC) && \
 	!defined(PLATFORM_DRIVER) && \
 	!IS_ENABLED(CONFIG_PLAT_SPEAR) && \
+	!IS_ENABLED(CONFIG_ARCH_AT91) && \
 	!defined(PS3_SYSTEM_BUS_DRIVER) && \
 	!defined(OF_PLATFORM_DRIVER) && \
 	!defined(XILINX_OF_PLATFORM_DRIVER)
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 36c3a82..593d3bb 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -798,7 +798,7 @@ struct ehci_driver_overrides {
 extern void	ehci_init_driver(struct hc_driver *drv,
 				const struct ehci_driver_overrides *over);
 extern int	ehci_setup(struct usb_hcd *hcd);
-
+extern void ehci_shutdown(struct usb_hcd *hcd);
 #ifdef CONFIG_PM
 extern int	ehci_suspend(struct usb_hcd *hcd, bool do_wakeup);
 extern int	ehci_resume(struct usb_hcd *hcd, bool hibernated);
-- 
1.7.9.5

[PATCH 3/8] USB: EHCI: make ehci-s5p a separate driver

[manjunath.goudar at linaro.org]

From: Manjunath Goudar <manjunath.goudar@linaro.org>

Separate the s5p host controller driver from ehci-hcd host code
into its own driver module.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: linux-usb at vger.kernel.org
---
 drivers/usb/host/Kconfig    |    2 +-
 drivers/usb/host/Makefile   |    1 +
 drivers/usb/host/ehci-hcd.c |    6 +---
 drivers/usb/host/ehci-s5p.c |   69 ++++++++++++++++++++++++-------------------
 4 files changed, 41 insertions(+), 37 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 1ef37d7..8ffbafa 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -215,7 +215,7 @@ config USB_EHCI_SH
 	  If you use the PCI EHCI controller, this option is not necessary.
 
 config USB_EHCI_S5P
-       boolean "S5P EHCI support"
+       tristate "S5P EHCI support"
        depends on USB_EHCI_HCD && PLAT_S5P
        help
 	 Enable support for the S5P SOC's on-chip EHCI controller.
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index b301243..77e0331 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -30,6 +30,7 @@ obj-$(CONFIG_USB_EHCI_MXC)	+= ehci-mxc.o
 obj-$(CONFIG_USB_EHCI_HCD_SPEAR)+= ehci-spear.o
 obj-$(CONFIG_USB_OXU210HP_HCD)	+= oxu210hp-hcd.o
 obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
+obj-$(CONFIG_USB_EHCI_S5P)      += ehci-s5p.o
 obj-$(CONFIG_USB_ISP116X_HCD)	+= isp116x-hcd.o
 obj-$(CONFIG_USB_ISP1362_HCD)	+= isp1362-hcd.o
 obj-$(CONFIG_USB_OHCI_HCD)	+= ohci-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 08e9fdf..22c50fb 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1307,11 +1307,6 @@ MODULE_LICENSE ("GPL");
 #define	PLATFORM_DRIVER		ehci_hcd_msp_driver
 #endif
 
-#ifdef CONFIG_USB_EHCI_TEGRA
-#include "ehci-tegra.c"
-#define PLATFORM_DRIVER		tegra_ehci_driver
-#endif
-
 #ifdef CONFIG_USB_EHCI_S5P
 #include "ehci-s5p.c"
 #define PLATFORM_DRIVER		s5p_ehci_driver
@@ -1339,6 +1334,7 @@ MODULE_LICENSE ("GPL");
 	!defined(PLATFORM_DRIVER) && \
 	!IS_ENABLED(CONFIG_PLAT_SPEAR) && \
 	!IS_ENABLED(CONFIG_ARCH_AT91) && \
+	!IS_ENABLED(CONFIG_USB_EHCI_S5P) && \
 	!defined(PS3_SYSTEM_BUS_DRIVER) && \
 	!defined(OF_PLATFORM_DRIVER) && \
 	!defined(XILINX_OF_PLATFORM_DRIVER)
diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index 20ebf6a..6ddf526 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -20,6 +20,17 @@
 #include <linux/usb/phy.h>
 #include <linux/usb/samsung_usb_phy.h>
 #include <plat/usb-phy.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/io.h>
+#include <linux/usb/otg.h>
+#include <linux/dma-mapping.h>
+
+#include "ehci.h"
+
+#define DRIVER_DESC "EHCI s5p driver"
 
 #define EHCI_INSNREG00(base)			(base + 0x90)
 #define EHCI_INSNREG00_ENA_INCR16		(0x1 << 25)
@@ -30,6 +41,10 @@
 	(EHCI_INSNREG00_ENA_INCR16 | EHCI_INSNREG00_ENA_INCR8 |	\
 	 EHCI_INSNREG00_ENA_INCR4 | EHCI_INSNREG00_ENA_INCRX_ALIGN)
 
+static const char hcd_name[] = "ehci-s5p";
+static struct hc_driver __read_mostly s5p_ehci_hc_driver;
+
+
 struct s5p_ehci_hcd {
 	struct device *dev;
 	struct usb_hcd *hcd;
@@ -39,36 +54,6 @@ struct s5p_ehci_hcd {
 	struct s5p_ehci_platdata *pdata;
 };
 
-static const struct hc_driver s5p_ehci_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "S5P EHCI Host Controller",
-	.hcd_priv_size		= sizeof(struct ehci_hcd),
-
-	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
-
-	.reset			= ehci_setup,
-	.start			= ehci_run,
-	.stop			= ehci_stop,
-	.shutdown		= ehci_shutdown,
-
-	.get_frame_number	= ehci_get_frame,
-
-	.urb_enqueue		= ehci_urb_enqueue,
-	.urb_dequeue		= ehci_urb_dequeue,
-	.endpoint_disable	= ehci_endpoint_disable,
-	.endpoint_reset		= ehci_endpoint_reset,
-
-	.hub_status_data	= ehci_hub_status_data,
-	.hub_control		= ehci_hub_control,
-	.bus_suspend		= ehci_bus_suspend,
-	.bus_resume		= ehci_bus_resume,
-
-	.relinquish_port	= ehci_relinquish_port,
-	.port_handed_over	= ehci_port_handed_over,
-
-	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,
-};
 
 static void s5p_ehci_phy_enable(struct s5p_ehci_hcd *s5p_ehci)
 {
@@ -322,5 +307,27 @@ static struct platform_driver s5p_ehci_driver = {
 		.of_match_table = of_match_ptr(exynos_ehci_match),
 	}
 };
+static const struct ehci_driver_overrides s5p_overrides __initdata = {
+	.reset = ehci_setup,
+};
+
+static int __init ehci_s5p_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+	ehci_init_driver(&s5p_ehci_hc_driver, &s5p_overrides);
+	return platform_driver_register(&s5p_ehci_driver);
+}
+module_init(ehci_s5p_init);
+
+static void __exit ehci_s5p_cleanup(void)
+{
+	platform_driver_unregister(&s5p_ehci_driver);
+}
+module_exit(ehci_s5p_cleanup);
 
-MODULE_ALIAS("platform:s5p-ehci");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_ALIAS("platform:ehci-s5p");
+MODULE_LICENSE("GPL");
-- 
1.7.9.5

[PATCH 4/8] USB: EHCI: make ehci-mv a separate driver

[manjunath.goudar at linaro.org]

From: Manjunath Goudar <manjunath.goudar@linaro.org>

Separate the mv(marvell) host controller driver from ehci-hcd host code
into its own driver module.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: linux-usb at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
---
 drivers/usb/host/Kconfig    |    2 +-
 drivers/usb/host/Makefile   |    1 +
 drivers/usb/host/ehci-hcd.c |    6 +---
 drivers/usb/host/ehci-mv.c  |   80 ++++++++++++++++++++-----------------------
 4 files changed, 40 insertions(+), 49 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 8ffbafa..2aa4ece 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -221,7 +221,7 @@ config USB_EHCI_S5P
 	 Enable support for the S5P SOC's on-chip EHCI controller.
 
 config USB_EHCI_MV
-	bool "EHCI support for Marvell on-chip controller"
+	tristate "EHCI support for Marvell on-chip controller"
 	depends on USB_EHCI_HCD && (ARCH_PXA || ARCH_MMP)
 	select USB_EHCI_ROOT_HUB_TT
 	---help---
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 77e0331..d593017 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_USB_EHCI_HCD_SPEAR)+= ehci-spear.o
 obj-$(CONFIG_USB_OXU210HP_HCD)	+= oxu210hp-hcd.o
 obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
 obj-$(CONFIG_USB_EHCI_S5P)      += ehci-s5p.o
+obj-$(CONFIG_USB_EHCI_MV)       += ehci-mv.o
 obj-$(CONFIG_USB_ISP116X_HCD)	+= isp116x-hcd.o
 obj-$(CONFIG_USB_ISP1362_HCD)	+= isp1362-hcd.o
 obj-$(CONFIG_USB_OHCI_HCD)	+= ohci-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 22c50fb..d133f6d 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1317,11 +1317,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ehci_grlib_driver
 #endif
 
-#ifdef CONFIG_USB_EHCI_MV
-#include "ehci-mv.c"
-#define        PLATFORM_DRIVER         ehci_mv_driver
-#endif
-
 #ifdef CONFIG_MIPS_SEAD3
 #include "ehci-sead3.c"
 #define	PLATFORM_DRIVER		ehci_hcd_sead3_driver
@@ -1335,6 +1330,7 @@ MODULE_LICENSE ("GPL");
 	!IS_ENABLED(CONFIG_PLAT_SPEAR) && \
 	!IS_ENABLED(CONFIG_ARCH_AT91) && \
 	!IS_ENABLED(CONFIG_USB_EHCI_S5P) && \
+	!IS_ENABLED(CONFIG_USB_EHCI_MV) && \
 	!defined(PS3_SYSTEM_BUS_DRIVER) && \
 	!defined(OF_PLATFORM_DRIVER) && \
 	!defined(XILINX_OF_PLATFORM_DRIVER)
diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
index 3065809..67de419 100644
--- a/drivers/usb/host/ehci-mv.c
+++ b/drivers/usb/host/ehci-mv.c
@@ -17,7 +17,18 @@
 #include <linux/usb/otg.h>
 #include <linux/platform_data/mv_usb.h>
 
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+
+#include "ehci.h"
+
+#define DRIVER_DESC "EHCI mv driver"
+
 #define CAPLENGTH_MASK         (0xff)
+static const char hcd_name[] = "ehci-mv";
+static struct hc_driver __read_mostly mv_ehci_hc_driver;
 
 struct ehci_hcd_mv {
 	struct usb_hcd *hcd;
@@ -95,48 +106,6 @@ static int mv_ehci_reset(struct usb_hcd *hcd)
 	return retval;
 }
 
-static const struct hc_driver mv_ehci_hc_driver = {
-	.description = hcd_name,
-	.product_desc = "Marvell EHCI",
-	.hcd_priv_size = sizeof(struct ehci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq = ehci_irq,
-	.flags = HCD_MEMORY | HCD_USB2,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.reset = mv_ehci_reset,
-	.start = ehci_run,
-	.stop = ehci_stop,
-	.shutdown = ehci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue = ehci_urb_enqueue,
-	.urb_dequeue = ehci_urb_dequeue,
-	.endpoint_disable = ehci_endpoint_disable,
-	.endpoint_reset = ehci_endpoint_reset,
-	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number = ehci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data = ehci_hub_status_data,
-	.hub_control = ehci_hub_control,
-	.bus_suspend = ehci_bus_suspend,
-	.bus_resume = ehci_bus_resume,
-};
-
 static int mv_ehci_probe(struct platform_device *pdev)
 {
 	struct mv_usb_platform_data *pdata = pdev->dev.platform_data;
@@ -350,8 +319,33 @@ static struct platform_driver ehci_mv_driver = {
 	.remove = mv_ehci_remove,
 	.shutdown = mv_ehci_shutdown,
 	.driver = {
-		   .name = "mv-ehci",
+		   .name = hcd_name,
 		   .bus = &platform_bus_type,
 		   },
 	.id_table = ehci_id_table,
 };
+static const struct ehci_driver_overrides mv_overrides __initdata = {
+	.reset = mv_ehci_reset,
+};
+
+static int __init ehci_mv_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+	ehci_init_driver(&mv_ehci_hc_driver, &mv_overrides);
+	return platform_driver_register(&ehci_mv_driver);
+}
+module_init(ehci_mv_init);
+
+static void __exit ehci_mv_cleanup(void)
+{
+	platform_driver_unregister(&ehci_mv_driver);
+}
+module_exit(ehci_mv_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_ALIAS("platform:ehci-mv");
+MODULE_AUTHOR("Marvell");
+MODULE_LICENSE("GPL");
-- 
1.7.9.5

[PATCH 5/8] USB: EHCI: make ehci-vt8500 a separate driver

[manjunath.goudar at linaro.org]

From: Manjunath Goudar <manjunath.goudar@linaro.org>

Separate the vt8500 host controller driver from ehci-hcd host code
into its own driver module.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Tony Prisk <linux@prisktech.co.nz>
Cc: Alexey Charkov <alchark@gmail.com>
Cc: linux-usb at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
---
 drivers/usb/host/Kconfig       |    8 +++++
 drivers/usb/host/Makefile      |    1 +
 drivers/usb/host/ehci-hcd.c    |    5 ---
 drivers/usb/host/ehci-vt8500.c |   73 ++++++++++++++++++----------------------
 4 files changed, 42 insertions(+), 45 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 2aa4ece..4e15b87 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -162,6 +162,14 @@ config USB_EHCI_HCD_OMAP
 	  Enables support for the on-chip EHCI controller on
 	  OMAP3 and later chips.
 
+config USB_EHCI_HCD_VT8500
+        tristate "Support for VT8500 on-chip EHCI USB controller"
+        depends on USB_EHCI_HCD && ARCH_VT8500
+        default y
+        ---help---
+          Enables support for the on-chip EHCI controller on
+          VT8500 chips.
+
 config USB_EHCI_HCD_SPEAR
         tristate "Support for ST SPEAr on-chip EHCI USB controller"
         depends on USB_EHCI_HCD && PLAT_SPEAR
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index d593017..1fe0579 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -32,6 +32,7 @@ obj-$(CONFIG_USB_OXU210HP_HCD)	+= oxu210hp-hcd.o
 obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
 obj-$(CONFIG_USB_EHCI_S5P)      += ehci-s5p.o
 obj-$(CONFIG_USB_EHCI_MV)       += ehci-mv.o
+obj-$(CONFIG_USB_EHCI_HCD_VT8500)+= ehci-vt8500.o
 obj-$(CONFIG_USB_ISP116X_HCD)	+= isp116x-hcd.o
 obj-$(CONFIG_USB_ISP1362_HCD)	+= isp1362-hcd.o
 obj-$(CONFIG_USB_OHCI_HCD)	+= ohci-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index d133f6d..3dacac0 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1287,11 +1287,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ehci_octeon_driver
 #endif
 
-#ifdef CONFIG_ARCH_VT8500
-#include "ehci-vt8500.c"
-#define	PLATFORM_DRIVER		vt8500_ehci_driver
-#endif
-
 #ifdef CONFIG_USB_EHCI_MSM
 #include "ehci-msm.c"
 #define PLATFORM_DRIVER		ehci_msm_driver
diff --git a/drivers/usb/host/ehci-vt8500.c b/drivers/usb/host/ehci-vt8500.c
index 11695d5..98d65bd 100644
--- a/drivers/usb/host/ehci-vt8500.c
+++ b/drivers/usb/host/ehci-vt8500.c
@@ -16,52 +16,25 @@
  *
  */
 
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 
-static const struct hc_driver vt8500_ehci_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "VT8500 EHCI",
-	.hcd_priv_size		= sizeof(struct ehci_hcd),
+#include "ehci.h"
 
-	/*
-	 * generic hardware linkage
-	 */
-	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.reset			= ehci_setup,
-	.start			= ehci_run,
-	.stop			= ehci_stop,
-	.shutdown		= ehci_shutdown,
+#define DRIVER_DESC "vt8500 On-Chip EHCI Host driver"
 
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue		= ehci_urb_enqueue,
-	.urb_dequeue		= ehci_urb_dequeue,
-	.endpoint_disable	= ehci_endpoint_disable,
-	.endpoint_reset		= ehci_endpoint_reset,
+static const char hcd_name[] = "ehci-vt8500";
 
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number	= ehci_get_frame,
+static struct hc_driver __read_mostly vt8500_ehci_hc_driver;
 
-	/*
-	 * root hub support
-	 */
-	.hub_status_data	= ehci_hub_status_data,
-	.hub_control		= ehci_hub_control,
-	.bus_suspend		= ehci_bus_suspend,
-	.bus_resume		= ehci_bus_resume,
-	.relinquish_port	= ehci_relinquish_port,
-	.port_handed_over	= ehci_port_handed_over,
-
-	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,
+static const struct ehci_driver_overrides ehci_vt8500_overrides __initdata = {
+	.reset = ehci_setup,
 };
 
 static u64 vt8500_ehci_dma_mask = DMA_BIT_MASK(32);
@@ -140,11 +113,31 @@ static struct platform_driver vt8500_ehci_driver = {
 	.remove		= vt8500_ehci_drv_remove,
 	.shutdown	= usb_hcd_platform_shutdown,
 	.driver = {
-		.name	= "vt8500-ehci",
+		.name	= hcd_name,
 		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(vt8500_ehci_ids),
 	}
 };
 
+static int __init ehci_vt8500_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+	ehci_init_driver(&vt8500_ehci_hc_driver, &ehci_vt8500_overrides);
+	return platform_driver_register(&vt8500_ehci_driver);
+}
+module_init(ehci_vt8500_init);
+
+static void __exit ehci_vt8500_cleanup(void)
+{
+	platform_driver_unregister(&vt8500_ehci_driver);
+}
+module_exit(ehci_vt8500_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Alexey Charkov");
+MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:vt8500-ehci");
 MODULE_DEVICE_TABLE(of, vt8500_ehci_ids);
-- 
1.7.9.5

[PATCH 6/8] USB: EHCI: make ehci-msm a separate driver

[manjunath.goudar at linaro.org]

From: Manjunath Goudar <manjunath.goudar@linaro.org>

Separate the Qualcomm On-Chip host controller driver from ehci-hcd host code
into its own driver module.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Brian Swetland <swetland@google.com>
Cc: linux-usb at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
---
 drivers/usb/host/Kconfig    |    4 +-
 drivers/usb/host/Makefile   |    1 +
 drivers/usb/host/ehci-hcd.c |    7 +---
 drivers/usb/host/ehci-msm.c |   85 +++++++++++++++++++------------------------
 4 files changed, 42 insertions(+), 55 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 4e15b87..751290d 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -187,7 +187,7 @@ config USB_EHCI_HCD_AT91
           Atmel chips.
 
 config USB_EHCI_MSM
-	bool "Support for MSM on-chip EHCI USB controller"
+	tristate "Support for MSM on-chip EHCI USB controller"
 	depends on USB_EHCI_HCD && ARCH_MSM
 	select USB_EHCI_ROOT_HUB_TT
 	select USB_MSM_OTG
@@ -203,7 +203,7 @@ config USB_EHCI_TEGRA
        boolean "NVIDIA Tegra HCD support"
        depends on USB_EHCI_HCD && ARCH_TEGRA
        select USB_EHCI_ROOT_HUB_TT
-       help
+      --- help---
          This driver enables support for the internal USB Host Controllers
          found in NVIDIA Tegra SoCs. The controllers are EHCI compliant.
 
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 1fe0579..75d98b9 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -33,6 +33,7 @@ obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
 obj-$(CONFIG_USB_EHCI_S5P)      += ehci-s5p.o
 obj-$(CONFIG_USB_EHCI_MV)       += ehci-mv.o
 obj-$(CONFIG_USB_EHCI_HCD_VT8500)+= ehci-vt8500.o
+obj-$(CONFIG_USB_EHCI_MSM)      += ehci-msm.o
 obj-$(CONFIG_USB_ISP116X_HCD)	+= isp116x-hcd.o
 obj-$(CONFIG_USB_ISP1362_HCD)	+= isp1362-hcd.o
 obj-$(CONFIG_USB_OHCI_HCD)	+= ohci-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 3dacac0..db5f0ce 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1287,11 +1287,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ehci_octeon_driver
 #endif
 
-#ifdef CONFIG_USB_EHCI_MSM
-#include "ehci-msm.c"
-#define PLATFORM_DRIVER		ehci_msm_driver
-#endif
-
 #ifdef CONFIG_TILE_USB
 #include "ehci-tilegx.c"
 #define	PLATFORM_DRIVER		ehci_hcd_tilegx_driver
@@ -1326,6 +1321,8 @@ MODULE_LICENSE ("GPL");
 	!IS_ENABLED(CONFIG_ARCH_AT91) && \
 	!IS_ENABLED(CONFIG_USB_EHCI_S5P) && \
 	!IS_ENABLED(CONFIG_USB_EHCI_MV) && \
+	!IS_ENABLED(CONFIG_ARCH_VT8500) && \
+	!IS_ENABLED(CONFIG_USB_EHCI_MSM) && \
 	!defined(PS3_SYSTEM_BUS_DRIVER) && \
 	!defined(OF_PLATFORM_DRIVER) && \
 	!defined(XILINX_OF_PLATFORM_DRIVER)
diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c
index 88a49c8..a9a0357 100644
--- a/drivers/usb/host/ehci-msm.c
+++ b/drivers/usb/host/ehci-msm.c
@@ -26,12 +26,22 @@
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/pm_runtime.h>
-
 #include <linux/usb/otg.h>
 #include <linux/usb/msm_hsusb_hw.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/io.h>
+
+#include "ehci.h"
 
 #define MSM_USB_BASE (hcd->regs)
 
+#define DRIVER_DESC "Qualcomm On-Chip EHCI Host Controller"
+
+static const char hcd_name[] = "msm_hsusb_host";
+static struct hc_driver __read_mostly msm_hc_driver;
 static struct usb_phy *phy;
 
 static int ehci_msm_reset(struct usb_hcd *hcd)
@@ -56,52 +66,6 @@ static int ehci_msm_reset(struct usb_hcd *hcd)
 	return 0;
 }
 
-static struct hc_driver msm_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "Qualcomm On-Chip EHCI Host Controller",
-	.hcd_priv_size		= sizeof(struct ehci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq			= ehci_irq,
-	.flags			= HCD_USB2 | HCD_MEMORY,
-
-	.reset			= ehci_msm_reset,
-	.start			= ehci_run,
-
-	.stop			= ehci_stop,
-	.shutdown		= ehci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue		= ehci_urb_enqueue,
-	.urb_dequeue		= ehci_urb_dequeue,
-	.endpoint_disable	= ehci_endpoint_disable,
-	.endpoint_reset		= ehci_endpoint_reset,
-	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number	= ehci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data	= ehci_hub_status_data,
-	.hub_control		= ehci_hub_control,
-	.relinquish_port	= ehci_relinquish_port,
-	.port_handed_over	= ehci_port_handed_over,
-
-	/*
-	 * PM support
-	 */
-	.bus_suspend		= ehci_bus_suspend,
-	.bus_resume		= ehci_bus_resume,
-};
-
 static int ehci_msm_probe(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd;
@@ -222,7 +186,32 @@ static struct platform_driver ehci_msm_driver = {
 	.probe	= ehci_msm_probe,
 	.remove	= ehci_msm_remove,
 	.driver = {
-		   .name = "msm_hsusb_host",
+		   .name = hcd_name,
 		   .pm = &ehci_msm_dev_pm_ops,
 	},
 };
+
+static const struct ehci_driver_overrides msm_overrides __initdata = {
+	.reset = ehci_msm_reset,
+};
+
+static int __init ehci_msm_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+	ehci_init_driver(&msm_hc_driver, &msm_overrides);
+	return platform_driver_register(&ehci_msm_driver);
+}
+module_init(ehci_msm_init);
+
+static void __exit ehci_msm_cleanup(void)
+{
+	platform_driver_unregister(&ehci_msm_driver);
+}
+module_exit(ehci_msm_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_ALIAS("platform:msm-ehci");
+MODULE_LICENSE("GPL");
-- 
1.7.9.5

[PATCH 7/8] USB: EHCI: make ehci-w90X900 a separate driver

[manjunath.goudar at linaro.org]

From: Manjunath Goudar <manjunath.goudar@linaro.org>

Separate the Nuvoton On-Chip host controller driver from ehci-hcd host code
into its own driver module.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: linux-usb at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
---
 drivers/usb/host/Kconfig        |    2 +-
 drivers/usb/host/Makefile       |    1 +
 drivers/usb/host/ehci-hcd.c     |   16 +++----
 drivers/usb/host/ehci-w90x900.c |   90 +++++++++++++++++----------------------
 4 files changed, 48 insertions(+), 61 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 751290d..d1d1b09 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -238,7 +238,7 @@ config USB_EHCI_MV
 	  only be EHCI host. OTG is controller that can switch to host mode.
 
 config USB_W90X900_EHCI
-	bool "W90X900(W90P910) EHCI support"
+	 tristate "W90X900(W90P910) EHCI support"
 	depends on USB_EHCI_HCD && ARCH_W90X900
 	---help---
 		Enables support for the W90X900 USB controller
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 75d98b9..e169ba1 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_USB_EHCI_S5P)      += ehci-s5p.o
 obj-$(CONFIG_USB_EHCI_MV)       += ehci-mv.o
 obj-$(CONFIG_USB_EHCI_HCD_VT8500)+= ehci-vt8500.o
 obj-$(CONFIG_USB_EHCI_MSM)      += ehci-msm.o
+obj-$(CONFIG_USB_W90X900_EHCI)  += ehci-w90x900.o
 obj-$(CONFIG_USB_ISP116X_HCD)	+= isp116x-hcd.o
 obj-$(CONFIG_USB_ISP1362_HCD)	+= isp1362-hcd.o
 obj-$(CONFIG_USB_OHCI_HCD)	+= ohci-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index db5f0ce..5fab5fa 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1272,16 +1272,6 @@ MODULE_LICENSE ("GPL");
 #define XILINX_OF_PLATFORM_DRIVER	ehci_hcd_xilinx_of_driver
 #endif
 
-#ifdef CONFIG_PLAT_ORION
-#include "ehci-orion.c"
-#define        PLATFORM_DRIVER         ehci_orion_driver
-#endif
-
-#ifdef CONFIG_USB_W90X900_EHCI
-#include "ehci-w90x900.c"
-#define	PLATFORM_DRIVER		ehci_hcd_w90x900_driver
-#endif
-
 #ifdef CONFIG_USB_OCTEON_EHCI
 #include "ehci-octeon.c"
 #define PLATFORM_DRIVER		ehci_octeon_driver
@@ -1292,6 +1282,11 @@ MODULE_LICENSE ("GPL");
 #define	PLATFORM_DRIVER		ehci_hcd_tilegx_driver
 #endif
 
+#ifdef CONFIG_PLAT_ORION
+#include "ehci-orion.c"
+#define  PLATFORM_DRIVER         ehci_orion_driver
+#endif
+
 #ifdef CONFIG_USB_EHCI_HCD_PMC_MSP
 #include "ehci-pmcmsp.c"
 #define	PLATFORM_DRIVER		ehci_hcd_msp_driver
@@ -1323,6 +1318,7 @@ MODULE_LICENSE ("GPL");
 	!IS_ENABLED(CONFIG_USB_EHCI_MV) && \
 	!IS_ENABLED(CONFIG_ARCH_VT8500) && \
 	!IS_ENABLED(CONFIG_USB_EHCI_MSM) && \
+	!IS_ENABLED(CONFIG_USB_W90X900_EHCI) && \
 	!defined(PS3_SYSTEM_BUS_DRIVER) && \
 	!defined(OF_PLATFORM_DRIVER) && \
 	!defined(XILINX_OF_PLATFORM_DRIVER)
diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c
index 59e0e24..0b677ec 100644
--- a/drivers/usb/host/ehci-w90x900.c
+++ b/drivers/usb/host/ehci-w90x900.c
@@ -13,11 +13,31 @@
 
 #include <linux/platform_device.h>
 
+#include <linux/dma-mapping.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/io.h>
+#include "ehci.h"
+
 /* enable phy0 and phy1 for w90p910 */
 #define	ENPHY		(0x01<<8)
 #define PHY0_CTR	(0xA4)
 #define PHY1_CTR	(0xA8)
 
+#define DRIVER_DESC "Nuvoton w90x900 On-Chip EHCI Host driver"
+
+static const char hcd_name[] = "ehci-w90x900";
+
+static struct hc_driver __read_mostly ehci_w90x900_hc_driver;
+
+static const struct ehci_driver_overrides ehci_w90X900_overrides __initdata = {
+	.reset = ehci_setup,
+};
+
 static int usb_w90x900_probe(const struct hc_driver *driver,
 		      struct platform_device *pdev)
 {
@@ -99,54 +119,6 @@ void usb_w90x900_remove(struct usb_hcd *hcd, struct platform_device *pdev)
 	usb_put_hcd(hcd);
 }
 
-static const struct hc_driver ehci_w90x900_hc_driver = {
-	.description = hcd_name,
-	.product_desc = "Nuvoton w90x900 EHCI Host Controller",
-	.hcd_priv_size = sizeof(struct ehci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq = ehci_irq,
-	.flags = HCD_USB2|HCD_MEMORY,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.reset = ehci_setup,
-	.start = ehci_run,
-
-	.stop = ehci_stop,
-	.shutdown = ehci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue = ehci_urb_enqueue,
-	.urb_dequeue = ehci_urb_dequeue,
-	.endpoint_disable = ehci_endpoint_disable,
-	.endpoint_reset = ehci_endpoint_reset,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number = ehci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data = ehci_hub_status_data,
-	.hub_control = ehci_hub_control,
-#ifdef	CONFIG_PM
-	.bus_suspend = ehci_bus_suspend,
-	.bus_resume = ehci_bus_resume,
-#endif
-	.relinquish_port	= ehci_relinquish_port,
-	.port_handed_over	= ehci_port_handed_over,
-
-	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
-};
-
 static int ehci_w90x900_probe(struct platform_device *pdev)
 {
 	if (usb_disabled())
@@ -168,12 +140,30 @@ static struct platform_driver ehci_hcd_w90x900_driver = {
 	.probe  = ehci_w90x900_probe,
 	.remove = ehci_w90x900_remove,
 	.driver = {
-		.name = "w90x900-ehci",
+		.name = hcd_name,
 		.owner = THIS_MODULE,
 	},
 };
 
+static int __init ehci_w90X900_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+	ehci_init_driver(&ehci_w90x900_hc_driver, &ehci_w90X900_overrides);
+	return platform_driver_register(&ehci_hcd_w90x900_driver);
+}
+module_init(ehci_w90X900_init);
+
+static void __exit ehci_w90X900_cleanup(void)
+{
+	platform_driver_unregister(&ehci_hcd_w90x900_driver);
+}
+module_exit(ehci_w90X900_cleanup);
+
 MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
-MODULE_DESCRIPTION("w90p910 usb ehci driver!");
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:w90p910-ehci");
-- 
1.7.9.5

[PATCH 8/8] USB: EHCI: make ehci-orion a separate driver

[manjunath.goudar at linaro.org]

From: Manjunath Goudar <manjunath.goudar@linaro.org>

Separate the Marvell Orion host controller driver from ehci-hcd host code
into its own driver module.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org
---
 drivers/usb/host/Kconfig      |    8 ++++
 drivers/usb/host/Makefile     |    1 +
 drivers/usb/host/ehci-hcd.c   |    6 +--
 drivers/usb/host/ehci-orion.c |   91 +++++++++++++++++++----------------------
 4 files changed, 53 insertions(+), 53 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index d1d1b09..18bfbfa 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -162,6 +162,14 @@ config USB_EHCI_HCD_OMAP
 	  Enables support for the on-chip EHCI controller on
 	  OMAP3 and later chips.
 
+config USB_EHCI_HCD_ORION
+        tristate  "Support for Marvell Orion on-chip EHCI USB controller"
+        depends on USB_EHCI_HCD && PLAT_ORION
+        default y
+        ---help---
+          Enables support for the on-chip EHCI controller on
+          Morvell Orion chips.
+
 config USB_EHCI_HCD_VT8500
         tristate "Support for VT8500 on-chip EHCI USB controller"
         depends on USB_EHCI_HCD && ARCH_VT8500
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index e169ba1..fe20e98 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_USB_EHCI_MV)       += ehci-mv.o
 obj-$(CONFIG_USB_EHCI_HCD_VT8500)+= ehci-vt8500.o
 obj-$(CONFIG_USB_EHCI_MSM)      += ehci-msm.o
 obj-$(CONFIG_USB_W90X900_EHCI)  += ehci-w90x900.o
+obj-$(CONFIG_USB_EHCI_HCD_ORION)+= ehci-orion.o
 obj-$(CONFIG_USB_ISP116X_HCD)	+= isp116x-hcd.o
 obj-$(CONFIG_USB_ISP1362_HCD)	+= isp1362-hcd.o
 obj-$(CONFIG_USB_OHCI_HCD)	+= ohci-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 5fab5fa..4c2a795 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1282,11 +1282,6 @@ MODULE_LICENSE ("GPL");
 #define	PLATFORM_DRIVER		ehci_hcd_tilegx_driver
 #endif
 
-#ifdef CONFIG_PLAT_ORION
-#include "ehci-orion.c"
-#define  PLATFORM_DRIVER         ehci_orion_driver
-#endif
-
 #ifdef CONFIG_USB_EHCI_HCD_PMC_MSP
 #include "ehci-pmcmsp.c"
 #define	PLATFORM_DRIVER		ehci_hcd_msp_driver
@@ -1319,6 +1314,7 @@ MODULE_LICENSE ("GPL");
 	!IS_ENABLED(CONFIG_ARCH_VT8500) && \
 	!IS_ENABLED(CONFIG_USB_EHCI_MSM) && \
 	!IS_ENABLED(CONFIG_USB_W90X900_EHCI) && \
+	!IS_ENABLED(CONFIG_PLAT_ORION) && \
 	!defined(PS3_SYSTEM_BUS_DRIVER) && \
 	!defined(OF_PLATFORM_DRIVER) && \
 	!defined(XILINX_OF_PLATFORM_DRIVER)
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index 914a3ec..06f143b 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -17,6 +17,13 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_irq.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+
+#include "ehci.h"
+
 
 #define rdl(off)	__raw_readl(hcd->regs + (off))
 #define wrl(off, val)	__raw_writel((val), hcd->regs + (off))
@@ -34,6 +41,17 @@
 #define USB_PHY_IVREF_CTRL	0x440
 #define USB_PHY_TST_GRP_CTRL	0x450
 
+#define DRIVER_DESC "EHCI orion driver"
+
+static const char hcd_name[] = "ehci-orion";
+
+static struct hc_driver __read_mostly ehci_orion_hc_driver;
+
+static const struct ehci_driver_overrides orion_overrides __initdata = {
+	.reset = ehci_setup,
+};
+
+
 /*
  * Implement Orion USB controller specification guidelines
  */
@@ -104,51 +122,6 @@ static void orion_usb_phy_v1_setup(struct usb_hcd *hcd)
 	wrl(USB_MODE, 0x13);
 }
 
-static const struct hc_driver ehci_orion_hc_driver = {
-	.description = hcd_name,
-	.product_desc = "Marvell Orion EHCI",
-	.hcd_priv_size = sizeof(struct ehci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq = ehci_irq,
-	.flags = HCD_MEMORY | HCD_USB2,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.reset = ehci_setup,
-	.start = ehci_run,
-	.stop = ehci_stop,
-	.shutdown = ehci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue = ehci_urb_enqueue,
-	.urb_dequeue = ehci_urb_dequeue,
-	.endpoint_disable = ehci_endpoint_disable,
-	.endpoint_reset = ehci_endpoint_reset,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number = ehci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data = ehci_hub_status_data,
-	.hub_control = ehci_hub_control,
-	.bus_suspend = ehci_bus_suspend,
-	.bus_resume = ehci_bus_resume,
-	.relinquish_port = ehci_relinquish_port,
-	.port_handed_over = ehci_port_handed_over,
-
-	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
-};
-
 static void
 ehci_orion_conf_mbus_windows(struct usb_hcd *hcd,
 			     const struct mbus_dram_target_info *dram)
@@ -323,8 +296,6 @@ static int __exit ehci_orion_drv_remove(struct platform_device *pdev)
 	return 0;
 }
 
-MODULE_ALIAS("platform:orion-ehci");
-
 static const struct of_device_id ehci_orion_dt_ids[] = {
 	{ .compatible = "marvell,orion-ehci", },
 	{},
@@ -336,8 +307,32 @@ static struct platform_driver ehci_orion_driver = {
 	.remove		= __exit_p(ehci_orion_drv_remove),
 	.shutdown	= usb_hcd_platform_shutdown,
 	.driver = {
-		.name	= "orion-ehci",
+		.name	= hcd_name,
 		.owner  = THIS_MODULE,
 		.of_match_table = of_match_ptr(ehci_orion_dt_ids),
 	},
 };
+
+static int __init ehci_orion_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+	ehci_init_driver(&ehci_orion_hc_driver, &orion_overrides);
+	return platform_driver_register(&ehci_orion_driver);
+}
+module_init(ehci_orion_init);
+
+static void __exit ehci_orion_cleanup(void)
+{
+	platform_driver_unregister(&ehci_orion_driver);
+}
+module_exit(ehci_orion_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_ALIAS("platform:ehci-orion");
+MODULE_AUTHOR("Tzachi Perelstein");
+MODULE_LICENSE("GPL");
+
-- 
1.7.9.5

[PATCH 1/8] USB: EHCI: make ehci-spear a separate driver

[Viresh Kumar]

On Mon, Feb 11, 2013 at 12:28 AM,  <manjunath.goudar@linaro.org> wrote:
> From: Manjunath Goudar <manjunath.goudar@linaro.org>
>
> Separate the Spear host controller driver from ehci-hcd host code

SPEAr

> into its own driver module.
>
> Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
> Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
> Cc: Greg KH <greg@kroah.com>
> Cc: Alan Stern <stern@rowland.harvard.edu>
> Cc: Viresh Kumar <viresh.linux@gmail.com>
> Cc: Shiraz Hashim <shiraz.hashim@st.com>
> Cc: linux-usb at vger.kernel.org
> Cc: spear-devel at list.st.com
> ---
>  drivers/usb/host/Kconfig      |    8 +++
>  drivers/usb/host/Makefile     |    2 +-
>  drivers/usb/host/ehci-hcd.c   |    8 +--
>  drivers/usb/host/ehci-spear.c |  131 +++++++++++++++++++++--------------------
>  4 files changed, 78 insertions(+), 71 deletions(-)
>
> diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
> index 3a21c5d..15e8032 100644
> --- a/drivers/usb/host/Kconfig
> +++ b/drivers/usb/host/Kconfig
> @@ -162,6 +162,14 @@ config USB_EHCI_HCD_OMAP
>           Enables support for the on-chip EHCI controller on
>           OMAP3 and later chips.
>
> +config USB_EHCI_HCD_SPEAR
> +        tristate "Support for ST SPEAr on-chip EHCI USB controller"
> +        depends on USB_EHCI_HCD && PLAT_SPEAR
> +        default y
> +        ---help---
> +          Enables support for the on-chip EHCI controller on
> +          ST SPEAr chips.
> +
>  config USB_EHCI_MSM
>         bool "Support for MSM on-chip EHCI USB controller"
>         depends on USB_EHCI_HCD && ARCH_MSM
> diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
> index 001fbff..c8fcde9 100644
> --- a/drivers/usb/host/Makefile
> +++ b/drivers/usb/host/Makefile
> @@ -27,7 +27,7 @@ obj-$(CONFIG_USB_EHCI_HCD)    += ehci-hcd.o
>  obj-$(CONFIG_USB_EHCI_PCI)     += ehci-pci.o
>  obj-$(CONFIG_USB_EHCI_HCD_PLATFORM)    += ehci-platform.o
>  obj-$(CONFIG_USB_EHCI_MXC)     += ehci-mxc.o
> -
> +obj-$(CONFIG_USB_EHCI_HCD_SPEAR)+= ehci-spear.o
>  obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o
>  obj-$(CONFIG_USB_ISP116X_HCD)  += isp116x-hcd.o
>  obj-$(CONFIG_USB_ISP1362_HCD)  += isp1362-hcd.o
> diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
> index b416a3f..be7247b 100644
> --- a/drivers/usb/host/ehci-hcd.c
> +++ b/drivers/usb/host/ehci-hcd.c
> @@ -1274,7 +1274,7 @@ MODULE_LICENSE ("GPL");
>
>  #ifdef CONFIG_PLAT_ORION
>  #include "ehci-orion.c"
> -#define        PLATFORM_DRIVER         ehci_orion_driver
> +#define        PLATFORM_DRIVER         ehci_orion_driver
>  #endif

Looks to be unrelated change.

>
>  #ifdef CONFIG_USB_W90X900_EHCI
> @@ -1297,11 +1297,6 @@ MODULE_LICENSE ("GPL");
>  #define        PLATFORM_DRIVER         vt8500_ehci_driver
>  #endif
>
> -#ifdef CONFIG_PLAT_SPEAR
> -#include "ehci-spear.c"
> -#define PLATFORM_DRIVER                spear_ehci_hcd_driver
> -#endif
> -
>  #ifdef CONFIG_USB_EHCI_MSM
>  #include "ehci-msm.c"
>  #define PLATFORM_DRIVER                ehci_msm_driver
> @@ -1347,6 +1342,7 @@ MODULE_LICENSE ("GPL");
>         !IS_ENABLED(CONFIG_USB_CHIPIDEA_HOST) && \
>         !IS_ENABLED(CONFIG_USB_EHCI_MXC) && \
>         !defined(PLATFORM_DRIVER) && \
> +       !IS_ENABLED(CONFIG_PLAT_SPEAR) && \
>         !defined(PS3_SYSTEM_BUS_DRIVER) && \
>         !defined(OF_PLATFORM_DRIVER) && \
>         !defined(XILINX_OF_PLATFORM_DRIVER)
> diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
> index 466c1bb..0d9ed11 100644
> --- a/drivers/usb/host/ehci-spear.c
> +++ b/drivers/usb/host/ehci-spear.c
> @@ -1,5 +1,5 @@
>  /*
> -* Driver for EHCI HCD on SPEAR SOC
> +* Driver for EHCI HCD on SPEAr SOC
>  *
>  * Copyright (C) 2010 ST Micro Electronics,
>  * Deepak Sikri <deepak.sikri@st.com>
> @@ -12,29 +12,41 @@
>  */
>
>  #include <linux/clk.h>
> +#include <linux/dma-mapping.h>
> +#include <linux/io.h>
>  #include <linux/jiffies.h>
> +#include <linux/kernel.h>
> +#include <linux/module.h>
>  #include <linux/of.h>
>  #include <linux/platform_device.h>
>  #include <linux/pm.h>
> +#include <linux/usb.h>
> +#include <linux/usb/hcd.h>
>
> -struct spear_ehci {
> +#include "ehci.h"
> +
> +#define DRIVER_DESC "EHCI SPEAr driver"
> +
> +static const char hcd_name[] = "ehci-SPEAr";
> +
> +struct SPEAr_ehci {

That's what i wrote in my comment on first patch:

"Please write spear as SPEAr everywhere, leaving
functions/variables/config options."

And so i haven't expected SPEAr into structure/function names :)

>         struct ehci_hcd ehci;
>         struct clk *clk;
>  };
>
> -#define to_spear_ehci(hcd)     (struct spear_ehci *)hcd_to_ehci(hcd)
> +#define to_SPEAr_ehci(hcd)     (struct SPEAr_ehci *)hcd_to_ehci(hcd)

ditto

>
> -static void spear_start_ehci(struct spear_ehci *ehci)
> +static void SPEAr_start_ehci(struct SPEAr_ehci *ehci)

ditto

>  {
>         clk_prepare_enable(ehci->clk);
>  }
>
> -static void spear_stop_ehci(struct spear_ehci *ehci)
> +static void SPEAr_stop_ehci(struct SPEAr_ehci *ehci)

ditto

>  {
>         clk_disable_unprepare(ehci->clk);
>  }
>
> -static int ehci_spear_setup(struct usb_hcd *hcd)
> +static int ehci_SPEAr_setup(struct usb_hcd *hcd)

ditto

>  {
>         struct ehci_hcd *ehci = hcd_to_ehci(hcd);
>
> @@ -43,43 +55,10 @@ static int ehci_spear_setup(struct usb_hcd *hcd)
>
>         return ehci_setup(hcd);
>  }
> -
> -static const struct hc_driver ehci_spear_hc_driver = {
> -       .description                    = hcd_name,
> -       .product_desc                   = "SPEAr EHCI",
> -       .hcd_priv_size                  = sizeof(struct spear_ehci),
> -
> -       /* generic hardware linkage */
> -       .irq                            = ehci_irq,
> -       .flags                          = HCD_MEMORY | HCD_USB2,
> -
> -       /* basic lifecycle operations */
> -       .reset                          = ehci_spear_setup,
> -       .start                          = ehci_run,
> -       .stop                           = ehci_stop,
> -       .shutdown                       = ehci_shutdown,
> -
> -       /* managing i/o requests and associated device resources */
> -       .urb_enqueue                    = ehci_urb_enqueue,
> -       .urb_dequeue                    = ehci_urb_dequeue,
> -       .endpoint_disable               = ehci_endpoint_disable,
> -       .endpoint_reset                 = ehci_endpoint_reset,
> -
> -       /* scheduling support */
> -       .get_frame_number               = ehci_get_frame,
> -
> -       /* root hub support */
> -       .hub_status_data                = ehci_hub_status_data,
> -       .hub_control                    = ehci_hub_control,
> -       .bus_suspend                    = ehci_bus_suspend,
> -       .bus_resume                     = ehci_bus_resume,
> -       .relinquish_port                = ehci_relinquish_port,
> -       .port_handed_over               = ehci_port_handed_over,
> -       .clear_tt_buffer_complete       = ehci_clear_tt_buffer_complete,
> -};
> +static struct hc_driver __read_mostly ehci_SPEAr_hc_driver;

ditto

>
>  #ifdef CONFIG_PM
> -static int ehci_spear_drv_suspend(struct device *dev)
> +static int ehci_SPEAr_drv_suspend(struct device *dev)

ditto

>  {
>         struct usb_hcd *hcd = dev_get_drvdata(dev);
>         bool do_wakeup = device_may_wakeup(dev);
> @@ -87,7 +66,7 @@ static int ehci_spear_drv_suspend(struct device *dev)
>         return ehci_suspend(hcd, do_wakeup);
>  }
>
> -static int ehci_spear_drv_resume(struct device *dev)
> +static int ehci_SPEAr_drv_resume(struct device *dev)

ditto

>  {
>         struct usb_hcd *hcd = dev_get_drvdata(dev);
>
> @@ -96,18 +75,18 @@ static int ehci_spear_drv_resume(struct device *dev)
>  }
>  #endif /* CONFIG_PM */
>
> -static SIMPLE_DEV_PM_OPS(ehci_spear_pm_ops, ehci_spear_drv_suspend,
> -               ehci_spear_drv_resume);
> +static SIMPLE_DEV_PM_OPS(ehci_SPEAr_pm_ops, ehci_SPEAr_drv_suspend,
> +               ehci_SPEAr_drv_resume);

ditto

>
> -static u64 spear_ehci_dma_mask = DMA_BIT_MASK(32);
> +static u64 SPEAr_ehci_dma_mask = DMA_BIT_MASK(32);

ditto

>
> -static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
> +static int SPEAr_ehci_hcd_drv_probe(struct platform_device *pdev)

ditto

>  {
>         struct usb_hcd *hcd ;
> -       struct spear_ehci *ehci;
> +       struct SPEAr_ehci *ehci;

ditto

>         struct resource *res;
>         struct clk *usbh_clk;
> -       const struct hc_driver *driver = &ehci_spear_hc_driver;
> +       const struct hc_driver *driver = &ehci_SPEAr_hc_driver;

ditto

>         int irq, retval;
>
>         if (usb_disabled())
> @@ -125,7 +104,7 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
>          * Once we have dma capability bindings this can go away.
>          */
>         if (!pdev->dev.dma_mask)
> -               pdev->dev.dma_mask = &spear_ehci_dma_mask;
> +               pdev->dev.dma_mask = &SPEAr_ehci_dma_mask;

ditto

>
>         usbh_clk = devm_clk_get(&pdev->dev, NULL);
>         if (IS_ERR(usbh_clk)) {
> @@ -161,10 +140,10 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
>                 goto err_put_hcd;
>         }
>
> -       ehci = (struct spear_ehci *)hcd_to_ehci(hcd);
> +       ehci = (struct SPEAr_ehci *)hcd_to_ehci(hcd);

ditto

>         ehci->clk = usbh_clk;
>
> -       spear_start_ehci(ehci);
> +       SPEAr_start_ehci(ehci);

ditto

>         retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
>         if (retval)
>                 goto err_stop_ehci;
> @@ -172,7 +151,7 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
>         return retval;
>
>  err_stop_ehci:
> -       spear_stop_ehci(ehci);
> +       SPEAr_stop_ehci(ehci);

ditto

>  err_put_hcd:
>         usb_put_hcd(hcd);
>  fail:
> @@ -181,10 +160,10 @@ fail:
>         return retval ;
>  }
>
> -static int spear_ehci_hcd_drv_remove(struct platform_device *pdev)
> +static int SPEAr_ehci_hcd_drv_remove(struct platform_device *pdev)

ditto

>  {
>         struct usb_hcd *hcd = platform_get_drvdata(pdev);
> -       struct spear_ehci *ehci_p = to_spear_ehci(hcd);
> +       struct SPEAr_ehci *ehci_p = to_SPEAr_ehci(hcd);

ditto

>
>         if (!hcd)
>                 return 0;
> @@ -193,27 +172,51 @@ static int spear_ehci_hcd_drv_remove(struct platform_device *pdev)
>         usb_remove_hcd(hcd);
>
>         if (ehci_p->clk)
> -               spear_stop_ehci(ehci_p);
> +               SPEAr_stop_ehci(ehci_p);

ditto

>         usb_put_hcd(hcd);
>
>         return 0;
>  }
>
> -static struct of_device_id spear_ehci_id_table[] = {
> -       { .compatible = "st,spear600-ehci", },
> +static struct of_device_id SPEAr_ehci_id_table[] = {

ditto

> +       { .compatible = "st,SPEAr600-ehci", },

ditto

>         { },
>  };
>
> -static struct platform_driver spear_ehci_hcd_driver = {
> -       .probe          = spear_ehci_hcd_drv_probe,
> -       .remove         = spear_ehci_hcd_drv_remove,
> +static struct platform_driver SPEAr_ehci_hcd_driver = {
> +       .probe          = SPEAr_ehci_hcd_drv_probe,
> +       .remove         = SPEAr_ehci_hcd_drv_remove,

ditto

>         .shutdown       = usb_hcd_platform_shutdown,
>         .driver         = {
> -               .name = "spear-ehci",
> +               .name = hcd_name,
>                 .bus = &platform_bus_type,
> -               .pm = &ehci_spear_pm_ops,
> -               .of_match_table = of_match_ptr(spear_ehci_id_table),
> +               .pm = &ehci_SPEAr_pm_ops,
> +               .of_match_table = of_match_ptr(SPEAr_ehci_id_table),

ditto

>         }
>  };
>
> -MODULE_ALIAS("platform:spear-ehci");
> +
> +static const struct ehci_driver_overrides SPEAr_overrides __initdata = {
> +       .reset = ehci_SPEAr_setup,

ditto

> +};
> +
> +static int __init ehci_SPEAr_init(void)
> +{
> +       if (usb_disabled())
> +               return -ENODEV;
> +
> +       pr_info("%s: " DRIVER_DESC "\n", hcd_name);
> +
> +       ehci_init_driver(&ehci_SPEAr_hc_driver, &SPEAr_overrides);
> +       return platform_driver_register(&SPEAr_ehci_hcd_driver);
> +}
> +module_init(ehci_SPEAr_init);
> +
> +static void __exit ehci_SPEAr_cleanup(void)
> +{
> +       platform_driver_unregister(&SPEAr_ehci_hcd_driver);
> +}
> +module_exit(ehci_SPEAr_cleanup);

Everywhere else too :(

[PATCH 1/8] USB: EHCI: make ehci-spear a separate driver

[Mark Rutland]

Hello,

[...]

> -static struct of_device_id spear_ehci_id_table[] = {
> -       { .compatible = "st,spear600-ehci", },
> +static struct of_device_id SPEAr_ehci_id_table[] = {
> +       { .compatible = "st,SPEAr600-ehci", },
>         { },
>  };

This will break anyone using the documented binding, and anyone with an
existing dt will suddenly find their usb support broken.

Please don't change this.

Thanks,
Mark.

[PATCH 6/8] USB: EHCI: make ehci-msm a separate driver

[Stephen Warren]

On 02/10/2013 11:58 AM, manjunath.goudar at linaro.org wrote:
> Separate the Qualcomm On-Chip host controller driver from ehci-hcd host code

> diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig

> @@ -203,7 +203,7 @@ config USB_EHCI_TEGRA
>         boolean "NVIDIA Tegra HCD support"
>         depends on USB_EHCI_HCD && ARCH_TEGRA
>         select USB_EHCI_ROOT_HUB_TT
> -       help
> +      --- help---
>           This driver enables support for the internal USB Host Controllers
>           found in NVIDIA Tegra SoCs. The controllers are EHCI compliant.

I still don't think that's correct.

[PATCH 3/8] USB: EHCI: make ehci-s5p a separate driver

[Stephen Warren]

On 02/10/2013 11:58 AM, manjunath.goudar at linaro.org wrote:
> From: Manjunath Goudar <manjunath.goudar@linaro.org>
> 
> Separate the s5p host controller driver from ehci-hcd host code
> into its own driver module.

> diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c

> -#ifdef CONFIG_USB_EHCI_TEGRA
> -#include "ehci-tegra.c"
> -#define PLATFORM_DRIVER		tegra_ehci_driver
> -#endif

That's also still wrong.