[V2 2/8] USB: EHCI: make ehci-atmel a separate driver

[V2 2/8] USB: EHCI: make ehci-atmel a separate driver

[Manjunath Goudar]

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

In V2:
Resolved below compiler error.
drivers/usb/host/ehci-atmel.c: In function 'ehci_atmel_drv_remove':
drivers/usb/host/ehci-atmel.c:167: error: implicit declaration of function 'ehci_shutdown'

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@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 drivers/usb/host/Kconfig      |    8 +++++
 drivers/usb/host/Makefile     |    1 +
 drivers/usb/host/ehci-atmel.c |   76 ++++++++++++++++++++++-------------------
 drivers/usb/host/ehci-hcd.c   |   10 ++----
 drivers/usb/host/ehci.h       |    2 +-
 5 files changed, 53 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..3cd0dd4 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 +188,33 @@ 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 c4afd86..dda3d1b 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) && \
 	!IS_ENABLED(CONFIG_PLAT_SPEAR) && \
 	!defined(PLATFORM_DRIVER) && \
+	!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

Re: [V2 2/8] USB: EHCI: make ehci-atmel a separate driver

[Bo Shen]

On 02/15/2013 06:24 PM, Manjunath Goudar wrote:
> Separate the Atmel host controller driver from ehci-hcd host code
> into its own driver module.
>
> In V2:
> Resolved below compiler error.
> drivers/usb/host/ehci-atmel.c: In function 'ehci_atmel_drv_remove':
> drivers/usb/host/ehci-atmel.c:167: error: implicit declaration of function 'ehci_shutdown'
>
> 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@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> ---
>   drivers/usb/host/Kconfig      |    8 +++++
>   drivers/usb/host/Makefile     |    1 +
>   drivers/usb/host/ehci-atmel.c |   76 ++++++++++++++++++++++-------------------
>   drivers/usb/host/ehci-hcd.c   |   10 ++----
>   drivers/usb/host/ehci.h       |    2 +-
>   5 files changed, 53 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..3cd0dd4 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 +188,33 @@ static struct platform_driver ehci_atmel_driver = {
>   	.remove		= ehci_atmel_drv_remove,
>   	.shutdown	= usb_hcd_platform_shutdown,
>   	.driver		= {
> -		.name	= "atmel-ehci",
> +		.name	= hcd_name,

This change will cause atmel ehci won't work with the none device tree 
kernel.

it can be fixed with replace other places using "atmel-ehci" with 
<hcd_name>, that means replace "atmel-ehci" with "ehci-atmel" at other 
places.

Best Regards,
Bo Shen

Re: [V2 2/8] USB: EHCI: make ehci-atmel a separate driver

[Arnd Bergmann]

On Monday 18 February 2013, Bo Shen wrote:
> > -             .name   = "atmel-ehci",
> > +             .name   = hcd_name,
> 
> This change will cause atmel ehci won't work with the none device tree 
> kernel.
> 
> it can be fixed with replace other places using "atmel-ehci" with 
> <hcd_name>, that means replace "atmel-ehci" with "ehci-atmel" at other 
> places.

Ah, that is right. Thanks for pointing it out!

Manjunath, please revert this change and ensure you are not changing
the contents of the 'platform_driver->name' field in any of the drivers.

	Arnd

[V2 4/8] USB: EHCI: make ehci-mv as separate static driver

[Manjunath Goudar]

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

In V2:
No changes only Cc list changed in this patch.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-usb@vger.kernel.org
Cc: linux-kernel@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  |   78 +++++++++++++++++++------------------------
 4 files changed, 38 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 fa0e665..9cf4d73 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");
 	!defined(PLATFORM_DRIVER) && \
 	!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..0d92437 100644
--- a/drivers/usb/host/ehci-mv.c
+++ b/drivers/usb/host/ehci-mv.c
@@ -16,8 +16,18 @@
 #include <linux/err.h>
 #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 +105,6 @@ 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 +318,32 @@ 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_LICENSE("GPL");
-- 
1.7.9.5

[V2 5/8] USB: EHCI: make ehci-vt8500 a separate driver

[Manjunath Goudar]

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

In V2:
Change the GPL to GPL v2 MODULE_LICENSE 

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@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 drivers/usb/host/Kconfig       |    8 +++++
 drivers/usb/host/Makefile      |    1 +
 drivers/usb/host/ehci-hcd.c    |    6 +---
 drivers/usb/host/ehci-vt8500.c |   73 ++++++++++++++++++----------------------
 4 files changed, 43 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 9cf4d73..eefa3d7 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
@@ -1331,6 +1326,7 @@ 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) && \
 	!defined(PS3_SYSTEM_BUS_DRIVER) && \
 	!defined(OF_PLATFORM_DRIVER) && \
 	!defined(XILINX_OF_PLATFORM_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

Re: [V2 5/8] USB: EHCI: make ehci-vt8500 a separate driver

[Alan Stern]

On Fri, 15 Feb 2013, Manjunath Goudar wrote:

> Separate the vt8500 host controller driver from ehci-hcd host code
> into its own driver module.
> 
> In V2:
> Change the GPL to GPL v2 MODULE_LICENSE 

Same comments as for the other patches.

You know, when you submit a series of patches all doing basically the
same sort of thing, and somebody makes a suggestion to improve one of
them, you should always consider whether that suggestion could also
apply to the other patches in the series.  It's silly for us to send
you 8 separate emails, each telling you to make the same change to one 
particular patch in the series.

Therefore you should consider each of the problems I have described in 
the last several emails, and think about which of your patches they 
apply to.  Some of them do apply to more than one patch, even though I 
didn't say so explicitly at the time.

Alan Stern

[V2 6/8] USB: EHCI: make ehci-msm a separate driver

[Manjunath Goudar]

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

In V2:
Tegra patch related changes removed from this patch.

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@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 drivers/usb/host/Kconfig    |    2 +-
 drivers/usb/host/Makefile   |    1 +
 drivers/usb/host/ehci-hcd.c |    6 +--
 drivers/usb/host/ehci-msm.c |   85 +++++++++++++++++++------------------------
 4 files changed, 40 insertions(+), 54 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 4e15b87..d5ae838 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
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 eefa3d7..d802b95 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
@@ -1327,6 +1322,7 @@ MODULE_LICENSE ("GPL");
 	!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

Re: [V2 6/8] USB: EHCI: make ehci-msm a separate driver

[Alan Stern]

On Fri, 15 Feb 2013, Manjunath Goudar wrote:

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

> --- a/drivers/usb/host/ehci-msm.c
> +++ b/drivers/usb/host/ehci-msm.c

> +static const char hcd_name[] = "msm_hsusb_host";

This should be something more like "ehci-msm".  Of course, that means 
you have to leave the ehci_msm_driver.driver.name field unchanged.

Alan Stern

[V2 7/8] USB: EHCI: make ehci-w90X900 a separate driver

[Manjunath Goudar]

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

In V2:
No changes.

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@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 drivers/usb/host/Kconfig        |    2 +-
 drivers/usb/host/Makefile       |    1 +
 drivers/usb/host/ehci-hcd.c     |    6 +--
 drivers/usb/host/ehci-w90x900.c |   91 +++++++++++++++++----------------------
 4 files changed, 43 insertions(+), 57 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index d5ae838..1cae9d3 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 d802b95..a8e8a50 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1277,11 +1277,6 @@ MODULE_LICENSE ("GPL");
 #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
@@ -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..d7eeee7 100644
--- a/drivers/usb/host/ehci-w90x900.c
+++ b/drivers/usb/host/ehci-w90x900.c
@@ -11,13 +11,32 @@
  *
  */
 
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/dma-mapping.h>
+#include <linux/of.h>
 #include <linux/platform_device.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 +118,6 @@ 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 +139,30 @@ 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_DESCRIPTION(DRIVER_DESC);
+MODULE_ALIAS("platform:w90p910-ehci");
 MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
-MODULE_DESCRIPTION("w90p910 usb ehci driver!");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:w90p910-ehci");
-- 
1.7.9.5

Re: [V2 7/8] USB: EHCI: make ehci-w90X900 a separate driver

[Alan Stern]

On Fri, 15 Feb 2013, Manjunath Goudar wrote:

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

> --- 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"

Whitespace error.  You inserted an extra space character.

Alan Stern

[V2 8/8] USB: EHCI: make ehci-orion a separate driver

[Manjunath Goudar]

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

In V2:
Tegra patch related changes removed from this patch.

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@lists.infradead.org
Cc: linux-kernel@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 |   90 +++++++++++++++++++----------------------
 4 files changed, 52 insertions(+), 53 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 1cae9d3..94547f0 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 a8e8a50..83efb0d 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1272,11 +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_OCTEON_EHCI
 #include "ehci-octeon.c"
 #define PLATFORM_DRIVER		ehci_octeon_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..cfc4803 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 +307,31 @@ 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