* [PATCH 0/2] USB: OHCI: more bus glues as separate modules
@ 2013-07-04 17:16 Manjunath Goudar
2013-07-04 17:16 ` [PATCH 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar
` (3 more replies)
0 siblings, 4 replies; 14+ messages in thread
From: Manjunath Goudar @ 2013-07-04 17:16 UTC (permalink / raw)
To: linux-arm-kernel
These patches are for separating the SOC On-Chip ohci host controller
from ohci-hcd host code into its own driver module.
This work is part of enabling multi-platform kernels on ARM.
Manjunath Goudar (2):
USB: OHCI: make ohci-ep93xx a separate driver
USB: OHCI: make ohci-pxa27x a separate driver
drivers/usb/host/Kconfig | 16 +++++
drivers/usb/host/Makefile | 2 +
drivers/usb/host/ohci-ep93xx.c | 84 ++++++++++------------
drivers/usb/host/ohci-hcd.c | 24 -------
drivers/usb/host/ohci-pxa27x.c | 154 ++++++++++++++++------------------------
5 files changed, 120 insertions(+), 160 deletions(-)
--
1.7.9.5
^ permalink raw reply [flat|nested] 14+ messages in thread* [PATCH 1/2] USB: OHCI: make ohci-ep93xx a separate driver 2013-07-04 17:16 [PATCH 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar @ 2013-07-04 17:16 ` Manjunath Goudar 2013-07-04 20:16 ` Alan Stern 2013-07-04 17:16 ` [PATCH 2/2] USB: OHCI: make ohci-pxa27x " Manjunath Goudar ` (2 subsequent siblings) 3 siblings, 1 reply; 14+ messages in thread From: Manjunath Goudar @ 2013-07-04 17:16 UTC (permalink / raw) To: linux-arm-kernel Separate the OHCI EP93XX host controller driver from ohci-hcd host code so that it can be built as a separate driver module. This work is part of enabling multi-platform kernels on ARM. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Greg KH <greg@kroah.com> Cc: linux-usb at vger.kernel.org --- drivers/usb/host/Kconfig | 8 ++++ drivers/usb/host/Makefile | 1 + drivers/usb/host/ohci-ep93xx.c | 84 +++++++++++++++++++--------------------- drivers/usb/host/ohci-hcd.c | 19 --------- 4 files changed, 48 insertions(+), 64 deletions(-) diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index bf9a162..35c7001 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -414,6 +414,14 @@ config USB_OHCI_HCD_DA8XX Enables support for the on-chip OHCI controller on DA8xx/OMAP-L1x chips. +config USB_OHCI_HCD_EP93XX + tristate "Support for EP93XX on-chip OHCI USB controller" + depends on USB_OHCI_HCD && ARCH_EP93XX + default y + ---help--- + Enables support for the on-chip OHCI controller on + EP93XX chips. + config USB_OHCI_HCD_AT91 tristate "Support for Atmel on-chip OHCI USB controller" depends on USB_OHCI_HCD && ARCH_AT91 diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index f8d59371..3fee3ea 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -54,6 +54,7 @@ obj-$(CONFIG_USB_OHCI_HCD_AT91) += ohci-at91.o obj-$(CONFIG_USB_OHCI_HCD_S3CXXXX) += ohci-s3c2410.o obj-$(CONFIG_USB_OHCI_HCD_LPC32XX) += ohci-nxp.o obj-$(CONFIG_USB_OHCI_HCD_DA8XX) += ohci-da8xx.o +obj-$(CONFIG_USB_OHCI_HCD_EP93XX) += ohci-ep93xx.o obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o obj-$(CONFIG_USB_FHCI_HCD) += fhci.o diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c index f0aaa48..0c2f6df 100644 --- a/drivers/usb/host/ohci-ep93xx.c +++ b/drivers/usb/host/ohci-ep93xx.c @@ -25,8 +25,21 @@ #include <linux/clk.h> #include <linux/device.h> -#include <linux/signal.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/platform_device.h> +#include <linux/signal.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +#include "ohci.h" + +#define DRIVER_DESC "OHCI EP93xx driver" + +static const char hcd_name[] = "ohci-ep93xx"; + +static struct hc_driver __read_mostly ohci_ep93xx_hc_driver; static struct clk *usb_host_clock; @@ -45,6 +58,7 @@ static int usb_hcd_ep93xx_probe(const struct hc_driver *driver, { int retval; struct usb_hcd *hcd; + struct ohci_hcd *ohci; if (pdev->resource[1].flags != IORESOURCE_IRQ) { dev_dbg(&pdev->dev, "resource[1] is not IORESOURCE_IRQ\n"); @@ -79,7 +93,10 @@ static int usb_hcd_ep93xx_probe(const struct hc_driver *driver, ep93xx_start_hc(&pdev->dev); - ohci_hcd_init(hcd_to_ohci(hcd)); + ohci = hcd_to_ohci(hcd); + ohci->next_statechange = jiffies; + spin_lock_init(&ohci->lock); + INIT_LIST_HEAD(&ohci->pending); retval = usb_add_hcd(hcd, pdev->resource[1].start, 0); if (retval == 0) @@ -107,48 +124,6 @@ static void usb_hcd_ep93xx_remove(struct usb_hcd *hcd, usb_put_hcd(hcd); } -static int ohci_ep93xx_start(struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - int ret; - - if ((ret = ohci_init(ohci)) < 0) - return ret; - - if ((ret = ohci_run(ohci)) < 0) { - dev_err(hcd->self.controller, "can't start %s\n", - hcd->self.bus_name); - ohci_stop(hcd); - return ret; - } - - return 0; -} - -static struct hc_driver ohci_ep93xx_hc_driver = { - .description = hcd_name, - .product_desc = "EP93xx OHCI", - .hcd_priv_size = sizeof(struct ohci_hcd), - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - .start = ohci_ep93xx_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - .get_frame_number = ohci_get_frame, - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -extern int usb_disabled(void); - static int ohci_hcd_ep93xx_drv_probe(struct platform_device *pdev) { int ret; @@ -206,7 +181,6 @@ static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev) } #endif - static struct platform_driver ohci_hcd_ep93xx_driver = { .probe = ohci_hcd_ep93xx_drv_probe, .remove = ohci_hcd_ep93xx_drv_remove, @@ -221,4 +195,24 @@ static struct platform_driver ohci_hcd_ep93xx_driver = { }, }; +static int __init ohci_ep93xx_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ohci_init_driver(&ohci_ep93xx_hc_driver, NULL); + return platform_driver_register(&ohci_hcd_ep93xx_driver); +} +module_init(ohci_ep93xx_init); + +static void __exit ohci_ep93xx_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_ep93xx_driver); +} +module_exit(ohci_ep93xx_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:ep93xx-ohci"); diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index d514e11..3f46cff 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1189,11 +1189,6 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ohci_hcd_pxa27x_driver #endif -#ifdef CONFIG_ARCH_EP93XX -#include "ohci-ep93xx.c" -#define EP93XX_PLATFORM_DRIVER ohci_hcd_ep93xx_driver -#endif - #ifdef CONFIG_USB_OHCI_HCD_PPC_OF #include "ohci-ppc-of.c" #define OF_PLATFORM_DRIVER ohci_hcd_ppc_of_driver @@ -1284,20 +1279,9 @@ static int __init ohci_hcd_mod_init(void) if (retval < 0) goto error_tmio; #endif - -#ifdef EP93XX_PLATFORM_DRIVER - retval = platform_driver_register(&EP93XX_PLATFORM_DRIVER); - if (retval < 0) - goto error_ep93xx; -#endif - return retval; /* Error path */ -#ifdef EP93XX_PLATFORM_DRIVER - platform_driver_unregister(&EP93XX_PLATFORM_DRIVER); - error_ep93xx: -#endif #ifdef TMIO_OHCI_DRIVER platform_driver_unregister(&TMIO_OHCI_DRIVER); error_tmio: @@ -1335,9 +1319,6 @@ module_init(ohci_hcd_mod_init); static void __exit ohci_hcd_mod_exit(void) { -#ifdef EP93XX_PLATFORM_DRIVER - platform_driver_unregister(&EP93XX_PLATFORM_DRIVER); -#endif #ifdef TMIO_OHCI_DRIVER platform_driver_unregister(&TMIO_OHCI_DRIVER); #endif -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [PATCH 1/2] USB: OHCI: make ohci-ep93xx a separate driver 2013-07-04 17:16 ` [PATCH 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar @ 2013-07-04 20:16 ` Alan Stern 0 siblings, 0 replies; 14+ messages in thread From: Alan Stern @ 2013-07-04 20:16 UTC (permalink / raw) To: linux-arm-kernel On Thu, 4 Jul 2013, Manjunath Goudar wrote: > Separate the OHCI EP93XX host controller driver from ohci-hcd > host code so that it can be built as a separate driver module. > This work is part of enabling multi-platform kernels on ARM. > @@ -79,7 +93,10 @@ static int usb_hcd_ep93xx_probe(const struct hc_driver *driver, > > ep93xx_start_hc(&pdev->dev); > > - ohci_hcd_init(hcd_to_ohci(hcd)); > + ohci = hcd_to_ohci(hcd); > + ohci->next_statechange = jiffies; > + spin_lock_init(&ohci->lock); > + INIT_LIST_HEAD(&ohci->pending); > > retval = usb_add_hcd(hcd, pdev->resource[1].start, 0); > if (retval == 0) Why did you add these lines? Alan Stern ^ permalink raw reply [flat|nested] 14+ messages in thread
* [PATCH 2/2] USB: OHCI: make ohci-pxa27x a separate driver 2013-07-04 17:16 [PATCH 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar 2013-07-04 17:16 ` [PATCH 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar @ 2013-07-04 17:16 ` Manjunath Goudar 2013-07-04 20:36 ` Alan Stern 2013-07-26 14:49 ` [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar 2013-08-10 7:41 ` [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar 3 siblings, 1 reply; 14+ messages in thread From: Manjunath Goudar @ 2013-07-04 17:16 UTC (permalink / raw) To: linux-arm-kernel Separate the OHCI pxa27x/pxa3xx host controller driver from ohci-hcd host code so that it can be built as a separate driver module. This work is part of enabling multi-platform kernels on ARM. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg KH <greg@kroah.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: linux-usb at vger.kernel.org --- drivers/usb/host/Kconfig | 8 +++ drivers/usb/host/Makefile | 1 + drivers/usb/host/ohci-hcd.c | 5 -- drivers/usb/host/ohci-pxa27x.c | 154 ++++++++++++++++------------------------ 4 files changed, 72 insertions(+), 96 deletions(-) diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 35c7001..f6fefa2 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -422,6 +422,14 @@ config USB_OHCI_HCD_EP93XX Enables support for the on-chip OHCI controller on EP93XX chips. +config USB_OHCI_HCD_PXA27X + tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller" + depends on USB_OHCI_HCD && ARCH_PXA + default y + ---help--- + Enables support for the on-chip OHCI controller on + PXA27X/PXA3XX chips. + config USB_OHCI_HCD_AT91 tristate "Support for Atmel on-chip OHCI USB controller" depends on USB_OHCI_HCD && ARCH_AT91 diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 3fee3ea..8b7fa89 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -55,6 +55,7 @@ obj-$(CONFIG_USB_OHCI_HCD_S3CXXXX) += ohci-s3c2410.o obj-$(CONFIG_USB_OHCI_HCD_LPC32XX) += ohci-nxp.o obj-$(CONFIG_USB_OHCI_HCD_DA8XX) += ohci-da8xx.o obj-$(CONFIG_USB_OHCI_HCD_EP93XX) += ohci-ep93xx.o +obj-$(CONFIG_USB_OHCI_HCD_PXA27X) += ohci-pxa27x.o obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o obj-$(CONFIG_USB_FHCI_HCD) += fhci.o diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 3f46cff..f601dde 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1184,11 +1184,6 @@ MODULE_LICENSE ("GPL"); #define SA1111_DRIVER ohci_hcd_sa1111_driver #endif -#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) -#include "ohci-pxa27x.c" -#define PLATFORM_DRIVER ohci_hcd_pxa27x_driver -#endif - #ifdef CONFIG_USB_OHCI_HCD_PPC_OF #include "ohci-ppc-of.c" #define OF_PLATFORM_DRIVER ohci_hcd_ppc_of_driver diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 5fb91f1..791e2b5 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -19,15 +19,26 @@ * This file is licenced under the GPL. */ -#include <linux/device.h> -#include <linux/signal.h> -#include <linux/platform_device.h> #include <linux/clk.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/of_platform.h> #include <linux/of_gpio.h> -#include <mach/hardware.h> #include <linux/platform_data/usb-ohci-pxa27x.h> #include <linux/platform_data/usb-pxa3xx-ulpi.h> +#include <linux/platform_device.h> +#include <linux/signal.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> +#include <linux/usb/otg.h> + +#include <mach/hardware.h> + +#include "ohci.h" + +#define DRIVER_DESC "OHCI PXA27X driver" /* * UHC: USB Host Controller (OHCI-like) register definitions @@ -101,11 +112,11 @@ #define PXA_UHC_MAX_PORTNUM 3 -struct pxa27x_ohci { - /* must be 1st member here for hcd_to_ohci() to work */ - struct ohci_hcd ohci; +static const char hcd_name[] = "ohci-pxa27x"; - struct device *dev; +static struct hc_driver __read_mostly ohci_pxa27x_hc_driver; + +struct pxa27x_ohci { struct clk *clk; void __iomem *mmio_base; }; @@ -154,8 +165,6 @@ static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode) return 0; } -extern int usb_disabled(void); - /*-------------------------------------------------------------------------*/ static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci, @@ -218,6 +227,7 @@ static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) int retval = 0; struct pxaohci_platform_data *inf; uint32_t uhchr; + struct usb_hcd *hcd = dev_get_drvdata(dev); inf = dev->platform_data; @@ -240,7 +250,7 @@ static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) return retval; if (cpu_is_pxa3xx()) - pxa3xx_u2d_start_hc(&ohci_to_hcd(&ohci->ohci)->self); + pxa3xx_u2d_start_hc(&hcd->self); uhchr = __raw_readl(ohci->mmio_base + UHCHR) & ~UHCHR_SSE; __raw_writel(uhchr, ohci->mmio_base + UHCHR); @@ -254,12 +264,13 @@ static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev) { struct pxaohci_platform_data *inf; + struct usb_hcd *hcd = dev_get_drvdata(dev); uint32_t uhccoms; inf = dev->platform_data; if (cpu_is_pxa3xx()) - pxa3xx_u2d_stop_hc(&ohci_to_hcd(&ohci->ohci)->self); + pxa3xx_u2d_stop_hc(&hcd->self); if (inf->exit) inf->exit(dev); @@ -357,6 +368,7 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device struct usb_hcd *hcd; struct pxaohci_platform_data *inf; struct pxa27x_ohci *ohci; + struct ohci_hcd *pxaohci; struct resource *r; struct clk *usb_clk; @@ -410,7 +422,6 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device /* initialize "struct pxa27x_ohci" */ ohci = (struct pxa27x_ohci *)hcd_to_ohci(hcd); - ohci->dev = &pdev->dev; ohci->clk = usb_clk; ohci->mmio_base = (void __iomem *)hcd->regs; @@ -425,7 +436,13 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device if (inf->power_budget) hcd->power_budget = inf->power_budget; - ohci_hcd_init(hcd_to_ohci(hcd)); + pxaohci = hcd_to_ohci(hcd); + pxaohci->next_statechange = jiffies; + spin_lock_init(&pxaohci->lock); + INIT_LIST_HEAD(&pxaohci->pending); + + /* The value of NDP in roothub_a is incorrect on this hardware */ + pxaohci->num_ports = 3; retval = usb_add_hcd(hcd, irq, 0); if (retval == 0) @@ -471,76 +488,6 @@ void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev) /*-------------------------------------------------------------------------*/ -static int -ohci_pxa27x_start (struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci (hcd); - int ret; - - ohci_dbg (ohci, "ohci_pxa27x_start, ohci:%p", ohci); - - /* The value of NDP in roothub_a is incorrect on this hardware */ - ohci->num_ports = 3; - - if ((ret = ohci_init(ohci)) < 0) - return ret; - - if ((ret = ohci_run (ohci)) < 0) { - dev_err(hcd->self.controller, "can't start %s", - hcd->self.bus_name); - ohci_stop (hcd); - return ret; - } - - return 0; -} - -/*-------------------------------------------------------------------------*/ - -static const struct hc_driver ohci_pxa27x_hc_driver = { - .description = hcd_name, - .product_desc = "PXA27x OHCI", - .hcd_priv_size = sizeof(struct pxa27x_ohci), - - /* - * generic hardware linkage - */ - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - - /* - * basic lifecycle operations - */ - .start = ohci_pxa27x_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ohci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -/*-------------------------------------------------------------------------*/ - static int ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev) { pr_debug ("In ohci_hcd_pxa27x_drv_probe"); @@ -565,11 +512,13 @@ static int ohci_hcd_pxa27x_drv_suspend(struct device *dev) struct usb_hcd *hcd = dev_get_drvdata(dev); struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); bool do_wakeup = device_may_wakeup(dev); + struct ohci_hcd *pxaohci = hcd_to_ohci(hcd); int ret; - if (time_before(jiffies, ohci->ohci.next_statechange)) + if (time_before(jiffies, pxaohci->next_statechange)) msleep(5); - ohci->ohci.next_statechange = jiffies; + + pxaohci->next_statechange = jiffies; ret = ohci_suspend(hcd, do_wakeup); if (ret) @@ -584,11 +533,13 @@ static int ohci_hcd_pxa27x_drv_resume(struct device *dev) struct usb_hcd *hcd = dev_get_drvdata(dev); struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); struct pxaohci_platform_data *inf = dev->platform_data; + struct ohci_hcd *pxaohci = hcd_to_ohci(hcd); int status; - if (time_before(jiffies, ohci->ohci.next_statechange)) + if (time_before(jiffies, pxaohci->next_statechange)) msleep(5); - ohci->ohci.next_statechange = jiffies; + + pxaohci->next_statechange = jiffies; if ((status = pxa27x_start_hc(ohci, dev)) < 0) return status; @@ -606,9 +557,6 @@ static const struct dev_pm_ops ohci_hcd_pxa27x_pm_ops = { }; #endif -/* work with hotplug and coldplug */ -MODULE_ALIAS("platform:pxa27x-ohci"); - static struct platform_driver ohci_hcd_pxa27x_driver = { .probe = ohci_hcd_pxa27x_drv_probe, .remove = ohci_hcd_pxa27x_drv_remove, @@ -623,3 +571,27 @@ static struct platform_driver ohci_hcd_pxa27x_driver = { }, }; +static const struct ohci_driver_overrides pxa27x_overrides __initconst = { + .extra_priv_size = sizeof(struct pxa27x_ohci), +}; + +static int __init ohci_pxa27x_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + ohci_init_driver(&ohci_pxa27x_hc_driver, &pxa27x_overrides); + return platform_driver_register(&ohci_hcd_pxa27x_driver); +} +module_init(ohci_pxa27x_init); + +static void __exit ohci_pxa27x_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_pxa27x_driver); +} +module_exit(ohci_pxa27x_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:pxa27x-ohci"); -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [PATCH 2/2] USB: OHCI: make ohci-pxa27x a separate driver 2013-07-04 17:16 ` [PATCH 2/2] USB: OHCI: make ohci-pxa27x " Manjunath Goudar @ 2013-07-04 20:36 ` Alan Stern 0 siblings, 0 replies; 14+ messages in thread From: Alan Stern @ 2013-07-04 20:36 UTC (permalink / raw) To: linux-arm-kernel On Thu, 4 Jul 2013, Manjunath Goudar wrote: > Separate the OHCI pxa27x/pxa3xx host controller driver from > ohci-hcd host code so that it can be built as a separate driver > module. This work is part of enabling multi-platform kernels on > ARM. > +config USB_OHCI_HCD_PXA27X > + tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller" > + depends on USB_OHCI_HCD && ARCH_PXA Shouldn't the ARCH_PXA part be the same as ... > @@ -1184,11 +1184,6 @@ MODULE_LICENSE ("GPL"); > #define SA1111_DRIVER ohci_hcd_sa1111_driver > #endif > > -#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) ... this? > diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c > index 5fb91f1..791e2b5 100644 > --- a/drivers/usb/host/ohci-pxa27x.c > +++ b/drivers/usb/host/ohci-pxa27x.c Several aspects of this are strange. For example, consider how you used the private part of the ohci_hcd structure and how the variable names are inconsistent with the other OHCI glue drivers. Alan Stern ^ permalink raw reply [flat|nested] 14+ messages in thread
* [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules 2013-07-04 17:16 [PATCH 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar 2013-07-04 17:16 ` [PATCH 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar 2013-07-04 17:16 ` [PATCH 2/2] USB: OHCI: make ohci-pxa27x " Manjunath Goudar @ 2013-07-26 14:49 ` Manjunath Goudar 2013-07-26 14:49 ` [PATCH V3 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar 2013-07-26 14:49 ` [PATCH V3 2/2] USB: OHCI: make ohci-pxa27x " Manjunath Goudar 2013-08-10 7:41 ` [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar 3 siblings, 2 replies; 14+ messages in thread From: Manjunath Goudar @ 2013-07-26 14:49 UTC (permalink / raw) To: linux-arm-kernel These patches are for separating the SOC On-Chip ohci host controller from ohci-hcd host code into its own driver module. This work is part of enabling multi-platform kernels on ARM. In V2: patch 1/2: -ohci_hcd_init() statements are removed, because by default it is called in ohci_setup(). Patch 2/2: -Changed ohci_hcd and pxa27x_ohci struct variable names. 1 ohci_hcd struct variable name is ohci. 2 pxa27x_ohci struct variable name is pxa_ohci. In V3: Patch 1/2: -Unused *ohci variable has been removed. patch 2/2: -Rewrite the macro definition of to_pxa27x_ohci. -clk_put() function has been called before usb_put_hcd(). Manjunath Goudar (2): USB: OHCI: make ohci-ep93xx a separate driver USB: OHCI: make ohci-pxa27x a separate driver drivers/usb/host/Kconfig | 16 +++ drivers/usb/host/Makefile | 2 + drivers/usb/host/ohci-ep93xx.c | 80 ++++++------- drivers/usb/host/ohci-hcd.c | 24 ---- drivers/usb/host/ohci-pxa27x.c | 242 ++++++++++++++++++---------------------- 5 files changed, 158 insertions(+), 206 deletions(-) -- 1.7.9.5 ^ permalink raw reply [flat|nested] 14+ messages in thread
* [PATCH V3 1/2] USB: OHCI: make ohci-ep93xx a separate driver 2013-07-26 14:49 ` [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar @ 2013-07-26 14:49 ` Manjunath Goudar 2013-07-26 14:49 ` [PATCH V3 2/2] USB: OHCI: make ohci-pxa27x " Manjunath Goudar 1 sibling, 0 replies; 14+ messages in thread From: Manjunath Goudar @ 2013-07-26 14:49 UTC (permalink / raw) To: linux-arm-kernel Separate the OHCI EP93XX host controller driver from ohci-hcd host code so that it can be built as a separate driver module. This work is part of enabling multi-platform kernels on ARM. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg KH <greg@kroah.com> Cc: linux-usb at vger.kernel.org V2: -ohci_hcd_init() statements are removed, because by default it is called in ohci_setup(). V3: -Unused *ohci variable has been removed. --- drivers/usb/host/Kconfig | 8 ++++ drivers/usb/host/Makefile | 1 + drivers/usb/host/ohci-ep93xx.c | 80 +++++++++++++++++----------------------- drivers/usb/host/ohci-hcd.c | 19 ---------- 4 files changed, 43 insertions(+), 65 deletions(-) diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index f7f7823..cdfaa04 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -414,6 +414,14 @@ config USB_OHCI_HCD_DA8XX Enables support for the on-chip OHCI controller on DA8xx/OMAP-L1x chips. +config USB_OHCI_HCD_EP93XX + tristate "Support for EP93XX on-chip OHCI USB controller" + depends on USB_OHCI_HCD && ARCH_EP93XX + default y + ---help--- + Enables support for the on-chip OHCI controller on + EP93XX chips. + config USB_OHCI_HCD_AT91 tristate "Support for Atmel on-chip OHCI USB controller" depends on USB_OHCI_HCD && ARCH_AT91 diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index f8d59371..3fee3ea 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -54,6 +54,7 @@ obj-$(CONFIG_USB_OHCI_HCD_AT91) += ohci-at91.o obj-$(CONFIG_USB_OHCI_HCD_S3CXXXX) += ohci-s3c2410.o obj-$(CONFIG_USB_OHCI_HCD_LPC32XX) += ohci-nxp.o obj-$(CONFIG_USB_OHCI_HCD_DA8XX) += ohci-da8xx.o +obj-$(CONFIG_USB_OHCI_HCD_EP93XX) += ohci-ep93xx.o obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o obj-$(CONFIG_USB_FHCI_HCD) += fhci.o diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c index f0aaa48..7b0e3ae 100644 --- a/drivers/usb/host/ohci-ep93xx.c +++ b/drivers/usb/host/ohci-ep93xx.c @@ -25,8 +25,21 @@ #include <linux/clk.h> #include <linux/device.h> -#include <linux/signal.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/platform_device.h> +#include <linux/signal.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +#include "ohci.h" + +#define DRIVER_DESC "OHCI EP93xx driver" + +static const char hcd_name[] = "ohci-ep93xx"; + +static struct hc_driver __read_mostly ohci_ep93xx_hc_driver; static struct clk *usb_host_clock; @@ -79,8 +92,6 @@ static int usb_hcd_ep93xx_probe(const struct hc_driver *driver, ep93xx_start_hc(&pdev->dev); - ohci_hcd_init(hcd_to_ohci(hcd)); - retval = usb_add_hcd(hcd, pdev->resource[1].start, 0); if (retval == 0) return retval; @@ -107,48 +118,6 @@ static void usb_hcd_ep93xx_remove(struct usb_hcd *hcd, usb_put_hcd(hcd); } -static int ohci_ep93xx_start(struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - int ret; - - if ((ret = ohci_init(ohci)) < 0) - return ret; - - if ((ret = ohci_run(ohci)) < 0) { - dev_err(hcd->self.controller, "can't start %s\n", - hcd->self.bus_name); - ohci_stop(hcd); - return ret; - } - - return 0; -} - -static struct hc_driver ohci_ep93xx_hc_driver = { - .description = hcd_name, - .product_desc = "EP93xx OHCI", - .hcd_priv_size = sizeof(struct ohci_hcd), - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - .start = ohci_ep93xx_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - .get_frame_number = ohci_get_frame, - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -extern int usb_disabled(void); - static int ohci_hcd_ep93xx_drv_probe(struct platform_device *pdev) { int ret; @@ -206,7 +175,6 @@ static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev) } #endif - static struct platform_driver ohci_hcd_ep93xx_driver = { .probe = ohci_hcd_ep93xx_drv_probe, .remove = ohci_hcd_ep93xx_drv_remove, @@ -221,4 +189,24 @@ static struct platform_driver ohci_hcd_ep93xx_driver = { }, }; +static int __init ohci_ep93xx_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ohci_init_driver(&ohci_ep93xx_hc_driver, NULL); + return platform_driver_register(&ohci_hcd_ep93xx_driver); +} +module_init(ohci_ep93xx_init); + +static void __exit ohci_ep93xx_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_ep93xx_driver); +} +module_exit(ohci_ep93xx_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:ep93xx-ohci"); diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index d514e11..3f46cff 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1189,11 +1189,6 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ohci_hcd_pxa27x_driver #endif -#ifdef CONFIG_ARCH_EP93XX -#include "ohci-ep93xx.c" -#define EP93XX_PLATFORM_DRIVER ohci_hcd_ep93xx_driver -#endif - #ifdef CONFIG_USB_OHCI_HCD_PPC_OF #include "ohci-ppc-of.c" #define OF_PLATFORM_DRIVER ohci_hcd_ppc_of_driver @@ -1284,20 +1279,9 @@ static int __init ohci_hcd_mod_init(void) if (retval < 0) goto error_tmio; #endif - -#ifdef EP93XX_PLATFORM_DRIVER - retval = platform_driver_register(&EP93XX_PLATFORM_DRIVER); - if (retval < 0) - goto error_ep93xx; -#endif - return retval; /* Error path */ -#ifdef EP93XX_PLATFORM_DRIVER - platform_driver_unregister(&EP93XX_PLATFORM_DRIVER); - error_ep93xx: -#endif #ifdef TMIO_OHCI_DRIVER platform_driver_unregister(&TMIO_OHCI_DRIVER); error_tmio: @@ -1335,9 +1319,6 @@ module_init(ohci_hcd_mod_init); static void __exit ohci_hcd_mod_exit(void) { -#ifdef EP93XX_PLATFORM_DRIVER - platform_driver_unregister(&EP93XX_PLATFORM_DRIVER); -#endif #ifdef TMIO_OHCI_DRIVER platform_driver_unregister(&TMIO_OHCI_DRIVER); #endif -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [PATCH V3 2/2] USB: OHCI: make ohci-pxa27x a separate driver 2013-07-26 14:49 ` [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar 2013-07-26 14:49 ` [PATCH V3 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar @ 2013-07-26 14:49 ` Manjunath Goudar 2013-07-26 19:01 ` Alan Stern 1 sibling, 1 reply; 14+ messages in thread From: Manjunath Goudar @ 2013-07-26 14:49 UTC (permalink / raw) To: linux-arm-kernel Separate the OHCI pxa27x/pxa3xx host controller driver from ohci-hcd host code so that it can be built as a separate driver module. This work is part of enabling multi-platform kernels on ARM. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg KH <greg@kroah.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: linux-usb at vger.kernel.org V2: -Changed ohci_hcd and pxa27x_ohci struct variable names. 1 ohci_hcd struct variable name is ohci. 2 pxa27x_ohci struct variable name is pxa_ohci. V3: -Rewrite the macro definition of to_pxa27x_ohci. -clk_put() function has been called before usb_put_hcd(). --- drivers/usb/host/Kconfig | 8 ++ drivers/usb/host/Makefile | 1 + drivers/usb/host/ohci-hcd.c | 5 - drivers/usb/host/ohci-pxa27x.c | 242 ++++++++++++++++++---------------------- 4 files changed, 115 insertions(+), 141 deletions(-) diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index cdfaa04..0d7ee36 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -422,6 +422,14 @@ config USB_OHCI_HCD_EP93XX Enables support for the on-chip OHCI controller on EP93XX chips. +config USB_OHCI_HCD_PXA27X + tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller" + depends on USB_OHCI_HCD && (PXA27x || PXA3xx) + default y + ---help--- + Enables support for the on-chip OHCI controller on + PXA27x/PXA3xx chips. + config USB_OHCI_HCD_AT91 tristate "Support for Atmel on-chip OHCI USB controller" depends on USB_OHCI_HCD && ARCH_AT91 diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 3fee3ea..8b7fa89 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -55,6 +55,7 @@ obj-$(CONFIG_USB_OHCI_HCD_S3CXXXX) += ohci-s3c2410.o obj-$(CONFIG_USB_OHCI_HCD_LPC32XX) += ohci-nxp.o obj-$(CONFIG_USB_OHCI_HCD_DA8XX) += ohci-da8xx.o obj-$(CONFIG_USB_OHCI_HCD_EP93XX) += ohci-ep93xx.o +obj-$(CONFIG_USB_OHCI_HCD_PXA27X) += ohci-pxa27x.o obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o obj-$(CONFIG_USB_FHCI_HCD) += fhci.o diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 3f46cff..f601dde 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1184,11 +1184,6 @@ MODULE_LICENSE ("GPL"); #define SA1111_DRIVER ohci_hcd_sa1111_driver #endif -#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) -#include "ohci-pxa27x.c" -#define PLATFORM_DRIVER ohci_hcd_pxa27x_driver -#endif - #ifdef CONFIG_USB_OHCI_HCD_PPC_OF #include "ohci-ppc-of.c" #define OF_PLATFORM_DRIVER ohci_hcd_ppc_of_driver diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 5fb91f1..394f221 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -19,15 +19,26 @@ * This file is licenced under the GPL. */ -#include <linux/device.h> -#include <linux/signal.h> -#include <linux/platform_device.h> #include <linux/clk.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/of_platform.h> #include <linux/of_gpio.h> -#include <mach/hardware.h> #include <linux/platform_data/usb-ohci-pxa27x.h> #include <linux/platform_data/usb-pxa3xx-ulpi.h> +#include <linux/platform_device.h> +#include <linux/signal.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> +#include <linux/usb/otg.h> + +#include <mach/hardware.h> + +#include "ohci.h" + +#define DRIVER_DESC "OHCI PXA27x/PXA3x driver" /* * UHC: USB Host Controller (OHCI-like) register definitions @@ -101,16 +112,16 @@ #define PXA_UHC_MAX_PORTNUM 3 -struct pxa27x_ohci { - /* must be 1st member here for hcd_to_ohci() to work */ - struct ohci_hcd ohci; +static const char hcd_name[] = "ohci-pxa27x"; + +static struct hc_driver __read_mostly ohci_pxa27x_hc_driver; - struct device *dev; +struct pxa27x_ohci { struct clk *clk; void __iomem *mmio_base; }; -#define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)hcd_to_ohci(hcd) +#define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)(hcd_to_ohci(hcd)->priv) /* PMM_NPS_MODE -- PMM Non-power switching mode @@ -122,10 +133,10 @@ struct pxa27x_ohci { PMM_PERPORT_MODE -- PMM per port switching mode Ports are powered individually. */ -static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode) +static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *pxa_ohci, int mode) { - uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA); - uint32_t uhcrhdb = __raw_readl(ohci->mmio_base + UHCRHDB); + uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA); + uint32_t uhcrhdb = __raw_readl(pxa_ohci->mmio_base + UHCRHDB); switch (mode) { case PMM_NPS_MODE: @@ -149,20 +160,18 @@ static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode) uhcrhda |= RH_A_NPS; } - __raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA); - __raw_writel(uhcrhdb, ohci->mmio_base + UHCRHDB); + __raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA); + __raw_writel(uhcrhdb, pxa_ohci->mmio_base + UHCRHDB); return 0; } -extern int usb_disabled(void); - /*-------------------------------------------------------------------------*/ -static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci, +static inline void pxa27x_setup_hc(struct pxa27x_ohci *pxa_ohci, struct pxaohci_platform_data *inf) { - uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR); - uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA); + uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR); + uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA); if (inf->flags & ENABLE_PORT1) uhchr &= ~UHCHR_SSEP1; @@ -194,17 +203,17 @@ static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci, uhcrhda |= UHCRHDA_POTPGT(inf->power_on_delay / 2); } - __raw_writel(uhchr, ohci->mmio_base + UHCHR); - __raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA); + __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR); + __raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA); } -static inline void pxa27x_reset_hc(struct pxa27x_ohci *ohci) +static inline void pxa27x_reset_hc(struct pxa27x_ohci *pxa_ohci) { - uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR); + uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR); - __raw_writel(uhchr | UHCHR_FHR, ohci->mmio_base + UHCHR); + __raw_writel(uhchr | UHCHR_FHR, pxa_ohci->mmio_base + UHCHR); udelay(11); - __raw_writel(uhchr & ~UHCHR_FHR, ohci->mmio_base + UHCHR); + __raw_writel(uhchr & ~UHCHR_FHR, pxa_ohci->mmio_base + UHCHR); } #ifdef CONFIG_PXA27x @@ -213,25 +222,26 @@ extern void pxa27x_clear_otgph(void); #define pxa27x_clear_otgph() do {} while (0) #endif -static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) +static int pxa27x_start_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev) { int retval = 0; struct pxaohci_platform_data *inf; uint32_t uhchr; + struct usb_hcd *hcd = dev_get_drvdata(dev); inf = dev->platform_data; - clk_prepare_enable(ohci->clk); + clk_prepare_enable(pxa_ohci->clk); - pxa27x_reset_hc(ohci); + pxa27x_reset_hc(pxa_ohci); - uhchr = __raw_readl(ohci->mmio_base + UHCHR) | UHCHR_FSBIR; - __raw_writel(uhchr, ohci->mmio_base + UHCHR); + uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) | UHCHR_FSBIR; + __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR); - while (__raw_readl(ohci->mmio_base + UHCHR) & UHCHR_FSBIR) + while (__raw_readl(pxa_ohci->mmio_base + UHCHR) & UHCHR_FSBIR) cpu_relax(); - pxa27x_setup_hc(ohci, inf); + pxa27x_setup_hc(pxa_ohci, inf); if (inf->init) retval = inf->init(dev); @@ -240,38 +250,39 @@ static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) return retval; if (cpu_is_pxa3xx()) - pxa3xx_u2d_start_hc(&ohci_to_hcd(&ohci->ohci)->self); + pxa3xx_u2d_start_hc(&hcd->self); - uhchr = __raw_readl(ohci->mmio_base + UHCHR) & ~UHCHR_SSE; - __raw_writel(uhchr, ohci->mmio_base + UHCHR); - __raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, ohci->mmio_base + UHCHIE); + uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) & ~UHCHR_SSE; + __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR); + __raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, pxa_ohci->mmio_base + UHCHIE); /* Clear any OTG Pin Hold */ pxa27x_clear_otgph(); return 0; } -static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev) +static void pxa27x_stop_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev) { struct pxaohci_platform_data *inf; + struct usb_hcd *hcd = dev_get_drvdata(dev); uint32_t uhccoms; inf = dev->platform_data; if (cpu_is_pxa3xx()) - pxa3xx_u2d_stop_hc(&ohci_to_hcd(&ohci->ohci)->self); + pxa3xx_u2d_stop_hc(&hcd->self); if (inf->exit) inf->exit(dev); - pxa27x_reset_hc(ohci); + pxa27x_reset_hc(pxa_ohci); /* Host Controller Reset */ - uhccoms = __raw_readl(ohci->mmio_base + UHCCOMS) | 0x01; - __raw_writel(uhccoms, ohci->mmio_base + UHCCOMS); + uhccoms = __raw_readl(pxa_ohci->mmio_base + UHCCOMS) | 0x01; + __raw_writel(uhccoms, pxa_ohci->mmio_base + UHCCOMS); udelay(10); - clk_disable_unprepare(ohci->clk); + clk_disable_unprepare(pxa_ohci->clk); } #ifdef CONFIG_OF @@ -356,7 +367,8 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device int retval, irq; struct usb_hcd *hcd; struct pxaohci_platform_data *inf; - struct pxa27x_ohci *ohci; + struct pxa27x_ohci *pxa_ohci; + struct ohci_hcd *ohci; struct resource *r; struct clk *usb_clk; @@ -409,29 +421,31 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device } /* initialize "struct pxa27x_ohci" */ - ohci = (struct pxa27x_ohci *)hcd_to_ohci(hcd); - ohci->dev = &pdev->dev; - ohci->clk = usb_clk; - ohci->mmio_base = (void __iomem *)hcd->regs; + pxa_ohci = to_pxa27x_ohci(hcd); + pxa_ohci->clk = usb_clk; + pxa_ohci->mmio_base = (void __iomem *)hcd->regs; - if ((retval = pxa27x_start_hc(ohci, &pdev->dev)) < 0) { + retval = pxa27x_start_hc(pxa_ohci, &pdev->dev); + if (retval < 0) { pr_debug("pxa27x_start_hc failed"); goto err3; } /* Select Power Management Mode */ - pxa27x_ohci_select_pmm(ohci, inf->port_mode); + pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode); if (inf->power_budget) hcd->power_budget = inf->power_budget; - ohci_hcd_init(hcd_to_ohci(hcd)); + /* The value of NDP in roothub_a is incorrect on this hardware */ + ohci = hcd_to_ohci(hcd); + ohci->num_ports = 3; retval = usb_add_hcd(hcd, irq, 0); if (retval == 0) return retval; - pxa27x_stop_hc(ohci, &pdev->dev); + pxa27x_stop_hc(pxa_ohci, &pdev->dev); err3: iounmap(hcd->regs); err2: @@ -459,88 +473,18 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device */ void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev) { - struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); + struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd); usb_remove_hcd(hcd); - pxa27x_stop_hc(ohci, &pdev->dev); + pxa27x_stop_hc(pxa_ohci, &pdev->dev); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + clk_put(pxa_ohci->clk); usb_put_hcd(hcd); - clk_put(ohci->clk); -} - -/*-------------------------------------------------------------------------*/ - -static int -ohci_pxa27x_start (struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci (hcd); - int ret; - - ohci_dbg (ohci, "ohci_pxa27x_start, ohci:%p", ohci); - - /* The value of NDP in roothub_a is incorrect on this hardware */ - ohci->num_ports = 3; - - if ((ret = ohci_init(ohci)) < 0) - return ret; - - if ((ret = ohci_run (ohci)) < 0) { - dev_err(hcd->self.controller, "can't start %s", - hcd->self.bus_name); - ohci_stop (hcd); - return ret; - } - - return 0; } /*-------------------------------------------------------------------------*/ -static const struct hc_driver ohci_pxa27x_hc_driver = { - .description = hcd_name, - .product_desc = "PXA27x OHCI", - .hcd_priv_size = sizeof(struct pxa27x_ohci), - - /* - * generic hardware linkage - */ - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - - /* - * basic lifecycle operations - */ - .start = ohci_pxa27x_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ohci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -/*-------------------------------------------------------------------------*/ - static int ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev) { pr_debug ("In ohci_hcd_pxa27x_drv_probe"); @@ -563,38 +507,43 @@ static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev) static int ohci_hcd_pxa27x_drv_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); + struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd); bool do_wakeup = device_may_wakeup(dev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); int ret; - if (time_before(jiffies, ohci->ohci.next_statechange)) + if (time_before(jiffies, ohci->next_statechange)) msleep(5); - ohci->ohci.next_statechange = jiffies; + + ohci->next_statechange = jiffies; ret = ohci_suspend(hcd, do_wakeup); if (ret) return ret; - pxa27x_stop_hc(ohci, dev); + pxa27x_stop_hc(pxa_ohci, dev); return ret; } static int ohci_hcd_pxa27x_drv_resume(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); + struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd); struct pxaohci_platform_data *inf = dev->platform_data; + struct ohci_hcd *ohci = hcd_to_ohci(hcd); int status; - if (time_before(jiffies, ohci->ohci.next_statechange)) + if (time_before(jiffies, ohci->next_statechange)) msleep(5); - ohci->ohci.next_statechange = jiffies; - if ((status = pxa27x_start_hc(ohci, dev)) < 0) + ohci->next_statechange = jiffies; + + status = pxa27x_start_hc(pxa_ohci, dev); + if (status < 0) return status; /* Select Power Management Mode */ - pxa27x_ohci_select_pmm(ohci, inf->port_mode); + pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode); ohci_resume(hcd, false); return 0; @@ -606,9 +555,6 @@ static const struct dev_pm_ops ohci_hcd_pxa27x_pm_ops = { }; #endif -/* work with hotplug and coldplug */ -MODULE_ALIAS("platform:pxa27x-ohci"); - static struct platform_driver ohci_hcd_pxa27x_driver = { .probe = ohci_hcd_pxa27x_drv_probe, .remove = ohci_hcd_pxa27x_drv_remove, @@ -623,3 +569,27 @@ static struct platform_driver ohci_hcd_pxa27x_driver = { }, }; +static const struct ohci_driver_overrides pxa27x_overrides __initconst = { + .extra_priv_size = sizeof(struct pxa27x_ohci), +}; + +static int __init ohci_pxa27x_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + ohci_init_driver(&ohci_pxa27x_hc_driver, &pxa27x_overrides); + return platform_driver_register(&ohci_hcd_pxa27x_driver); +} +module_init(ohci_pxa27x_init); + +static void __exit ohci_pxa27x_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_pxa27x_driver); +} +module_exit(ohci_pxa27x_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:pxa27x-ohci"); -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [PATCH V3 2/2] USB: OHCI: make ohci-pxa27x a separate driver 2013-07-26 14:49 ` [PATCH V3 2/2] USB: OHCI: make ohci-pxa27x " Manjunath Goudar @ 2013-07-26 19:01 ` Alan Stern 0 siblings, 0 replies; 14+ messages in thread From: Alan Stern @ 2013-07-26 19:01 UTC (permalink / raw) To: linux-arm-kernel On Fri, 26 Jul 2013, Manjunath Goudar wrote: > Separate the OHCI pxa27x/pxa3xx host controller driver from > ohci-hcd host code so that it can be built as a separate driver > module. This work is part of enabling multi-platform kernels on > ARM. > > Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> > Cc: Arnd Bergmann <arnd@arndb.de> > Cc: Greg KH <greg@kroah.com> > Cc: Alan Stern <stern@rowland.harvard.edu> > Cc: linux-usb at vger.kernel.org > > V2: > -Changed ohci_hcd and pxa27x_ohci struct variable names. > 1 ohci_hcd struct variable name is ohci. > 2 pxa27x_ohci struct variable name is pxa_ohci. > > V3: > -Rewrite the macro definition of to_pxa27x_ohci. > -clk_put() function has been called before usb_put_hcd(). Acked-by: Alan Stern <stern@rowland.harvard.edu> ^ permalink raw reply [flat|nested] 14+ messages in thread
* [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules 2013-07-04 17:16 [PATCH 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar ` (2 preceding siblings ...) 2013-07-26 14:49 ` [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar @ 2013-08-10 7:41 ` Manjunath Goudar 2013-08-10 7:41 ` [PATCH V3 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar 2013-08-10 7:41 ` [PATCH V3 2/2] USB: OHCI: make ohci-pxa27x " Manjunath Goudar 3 siblings, 2 replies; 14+ messages in thread From: Manjunath Goudar @ 2013-08-10 7:41 UTC (permalink / raw) To: linux-arm-kernel These patches are for separating the SOC On-Chip ohci host controller from ohci-hcd host code into its own driver module. This work is part of enabling multi-platform kernels on ARM. In V2: patch 1/2: -ohci_hcd_init() statements are removed, because by default it is called in ohci_setup(). Patch 2/2: -Changed ohci_hcd and pxa27x_ohci struct variable names. 1 ohci_hcd struct variable name is ohci. 2 pxa27x_ohci struct variable name is pxa_ohci. In V3: Patch 1/2: -Unused *ohci variable has been removed. patch 2/2: -Rewrite the macro definition of to_pxa27x_ohci. -clk_put() function has been called before usb_put_hcd(). Manjunath Goudar (2): USB: OHCI: make ohci-ep93xx a separate driver USB: OHCI: make ohci-pxa27x a separate driver drivers/usb/host/Kconfig | 16 +++ drivers/usb/host/Makefile | 2 + drivers/usb/host/ohci-ep93xx.c | 80 ++++++------- drivers/usb/host/ohci-hcd.c | 23 ---- drivers/usb/host/ohci-pxa27x.c | 242 ++++++++++++++++++---------------------- 5 files changed, 158 insertions(+), 205 deletions(-) -- 1.7.9.5 ^ permalink raw reply [flat|nested] 14+ messages in thread
* [PATCH V3 1/2] USB: OHCI: make ohci-ep93xx a separate driver 2013-08-10 7:41 ` [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar @ 2013-08-10 7:41 ` Manjunath Goudar 2013-08-12 20:19 ` Greg KH 2013-08-10 7:41 ` [PATCH V3 2/2] USB: OHCI: make ohci-pxa27x " Manjunath Goudar 1 sibling, 1 reply; 14+ messages in thread From: Manjunath Goudar @ 2013-08-10 7:41 UTC (permalink / raw) To: linux-arm-kernel Separate the OHCI EP93XX host controller driver from ohci-hcd host code so that it can be built as a separate driver module. This work is part of enabling multi-platform kernels on ARM. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Signed-off-by: Deepak Saxena <dsaxena@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg KH <greg@kroah.com> Cc: linux-usb at vger.kernel.org V2: -ohci_hcd_init() statements are removed, because by default it is called in ohci_setup(). V3: -Unused *ohci variable has been removed. --- drivers/usb/host/Kconfig | 8 ++++ drivers/usb/host/Makefile | 1 + drivers/usb/host/ohci-ep93xx.c | 80 +++++++++++++++++----------------------- drivers/usb/host/ohci-hcd.c | 18 --------- 4 files changed, 43 insertions(+), 64 deletions(-) diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index f7f7823..cdfaa04 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -414,6 +414,14 @@ config USB_OHCI_HCD_DA8XX Enables support for the on-chip OHCI controller on DA8xx/OMAP-L1x chips. +config USB_OHCI_HCD_EP93XX + tristate "Support for EP93XX on-chip OHCI USB controller" + depends on USB_OHCI_HCD && ARCH_EP93XX + default y + ---help--- + Enables support for the on-chip OHCI controller on + EP93XX chips. + config USB_OHCI_HCD_AT91 tristate "Support for Atmel on-chip OHCI USB controller" depends on USB_OHCI_HCD && ARCH_AT91 diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index f8d59371..3fee3ea 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -54,6 +54,7 @@ obj-$(CONFIG_USB_OHCI_HCD_AT91) += ohci-at91.o obj-$(CONFIG_USB_OHCI_HCD_S3CXXXX) += ohci-s3c2410.o obj-$(CONFIG_USB_OHCI_HCD_LPC32XX) += ohci-nxp.o obj-$(CONFIG_USB_OHCI_HCD_DA8XX) += ohci-da8xx.o +obj-$(CONFIG_USB_OHCI_HCD_EP93XX) += ohci-ep93xx.o obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o obj-$(CONFIG_USB_FHCI_HCD) += fhci.o diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c index f0aaa48..7b0e3ae 100644 --- a/drivers/usb/host/ohci-ep93xx.c +++ b/drivers/usb/host/ohci-ep93xx.c @@ -25,8 +25,21 @@ #include <linux/clk.h> #include <linux/device.h> -#include <linux/signal.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/platform_device.h> +#include <linux/signal.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +#include "ohci.h" + +#define DRIVER_DESC "OHCI EP93xx driver" + +static const char hcd_name[] = "ohci-ep93xx"; + +static struct hc_driver __read_mostly ohci_ep93xx_hc_driver; static struct clk *usb_host_clock; @@ -79,8 +92,6 @@ static int usb_hcd_ep93xx_probe(const struct hc_driver *driver, ep93xx_start_hc(&pdev->dev); - ohci_hcd_init(hcd_to_ohci(hcd)); - retval = usb_add_hcd(hcd, pdev->resource[1].start, 0); if (retval == 0) return retval; @@ -107,48 +118,6 @@ static void usb_hcd_ep93xx_remove(struct usb_hcd *hcd, usb_put_hcd(hcd); } -static int ohci_ep93xx_start(struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - int ret; - - if ((ret = ohci_init(ohci)) < 0) - return ret; - - if ((ret = ohci_run(ohci)) < 0) { - dev_err(hcd->self.controller, "can't start %s\n", - hcd->self.bus_name); - ohci_stop(hcd); - return ret; - } - - return 0; -} - -static struct hc_driver ohci_ep93xx_hc_driver = { - .description = hcd_name, - .product_desc = "EP93xx OHCI", - .hcd_priv_size = sizeof(struct ohci_hcd), - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - .start = ohci_ep93xx_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - .get_frame_number = ohci_get_frame, - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -extern int usb_disabled(void); - static int ohci_hcd_ep93xx_drv_probe(struct platform_device *pdev) { int ret; @@ -206,7 +175,6 @@ static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev) } #endif - static struct platform_driver ohci_hcd_ep93xx_driver = { .probe = ohci_hcd_ep93xx_drv_probe, .remove = ohci_hcd_ep93xx_drv_remove, @@ -221,4 +189,24 @@ static struct platform_driver ohci_hcd_ep93xx_driver = { }, }; +static int __init ohci_ep93xx_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ohci_init_driver(&ohci_ep93xx_hc_driver, NULL); + return platform_driver_register(&ohci_hcd_ep93xx_driver); +} +module_init(ohci_ep93xx_init); + +static void __exit ohci_ep93xx_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_ep93xx_driver); +} +module_exit(ohci_ep93xx_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:ep93xx-ohci"); diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 6ae5520..3f46cff 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1189,11 +1189,6 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ohci_hcd_pxa27x_driver #endif -#ifdef CONFIG_ARCH_EP93XX -#include "ohci-ep93xx.c" -#define EP93XX_PLATFORM_DRIVER ohci_hcd_ep93xx_driver -#endif - #ifdef CONFIG_USB_OHCI_HCD_PPC_OF #include "ohci-ppc-of.c" #define OF_PLATFORM_DRIVER ohci_hcd_ppc_of_driver @@ -1284,19 +1279,9 @@ static int __init ohci_hcd_mod_init(void) if (retval < 0) goto error_tmio; #endif - -#ifdef EP93XX_PLATFORM_DRIVER - retval = platform_driver_register(&EP93XX_PLATFORM_DRIVER); - if (retval < 0) - goto error_ep93xx; -#endif return retval; /* Error path */ -#ifdef EP93XX_PLATFORM_DRIVER - platform_driver_unregister(&EP93XX_PLATFORM_DRIVER); - error_ep93xx: -#endif #ifdef TMIO_OHCI_DRIVER platform_driver_unregister(&TMIO_OHCI_DRIVER); error_tmio: @@ -1334,9 +1319,6 @@ module_init(ohci_hcd_mod_init); static void __exit ohci_hcd_mod_exit(void) { -#ifdef EP93XX_PLATFORM_DRIVER - platform_driver_unregister(&EP93XX_PLATFORM_DRIVER); -#endif #ifdef TMIO_OHCI_DRIVER platform_driver_unregister(&TMIO_OHCI_DRIVER); #endif -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 14+ messages in thread
* [PATCH V3 1/2] USB: OHCI: make ohci-ep93xx a separate driver 2013-08-10 7:41 ` [PATCH V3 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar @ 2013-08-12 20:19 ` Greg KH 0 siblings, 0 replies; 14+ messages in thread From: Greg KH @ 2013-08-12 20:19 UTC (permalink / raw) To: linux-arm-kernel On Sat, Aug 10, 2013 at 01:11:39PM +0530, Manjunath Goudar wrote: > Separate the OHCI EP93XX host controller driver from ohci-hcd > host code so that it can be built as a separate driver module. > This work is part of enabling multi-platform kernels on ARM. > > Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> > Signed-off-by: Deepak Saxena <dsaxena@linaro.org> > Acked-by: Alan Stern <stern@rowland.harvard.edu> > Cc: Arnd Bergmann <arnd@arndb.de> > Cc: Greg KH <greg@kroah.com> > Cc: linux-usb at vger.kernel.org > > V2: > -ohci_hcd_init() statements are removed, > because by default it is called in ohci_setup(). > > V3: > -Unused *ohci variable has been removed. > --- > drivers/usb/host/Kconfig | 8 ++++ > drivers/usb/host/Makefile | 1 + > drivers/usb/host/ohci-ep93xx.c | 80 +++++++++++++++++----------------------- > drivers/usb/host/ohci-hcd.c | 18 --------- > 4 files changed, 43 insertions(+), 64 deletions(-) This too fails to apply: $ p1 < ../s1 checking file drivers/usb/host/Kconfig Hunk #1 FAILED at 414. 1 out of 1 hunk FAILED checking file drivers/usb/host/Makefile Hunk #1 FAILED at 54. 1 out of 1 hunk FAILED checking file drivers/usb/host/ohci-ep93xx.c Hunk #2 FAILED at 92. Hunk #3 FAILED at 120. Hunk #4 succeeded at 179 (offset -40 lines). Hunk #5 succeeded@193 (offset -40 lines). 2 out of 5 hunks FAILED checking file drivers/usb/host/ohci-hcd.c Reversed (or previously applied) patch detected! Assume -R? [n] Apply anyway? [n] Skipping patch. 3 out of 3 hunks ignored Can you respin _all_ of your pending patches you have sent me in a format that I can apply them, and resend them in a series that shows what should be applied in which order. As it is, I have 3-4 different series of patches from you, with no obvious order which should be applied in which order. Because of that, that might be why these aren't applying. thanks, greg k-h ^ permalink raw reply [flat|nested] 14+ messages in thread
* [PATCH V3 2/2] USB: OHCI: make ohci-pxa27x a separate driver 2013-08-10 7:41 ` [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar 2013-08-10 7:41 ` [PATCH V3 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar @ 2013-08-10 7:41 ` Manjunath Goudar 1 sibling, 0 replies; 14+ messages in thread From: Manjunath Goudar @ 2013-08-10 7:41 UTC (permalink / raw) To: linux-arm-kernel Separate the OHCI pxa27x/pxa3xx host controller driver from ohci-hcd host code so that it can be built as a separate driver module. This work is part of enabling multi-platform kernels on ARM. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Signed-off-by: Deepak Saxena <dsaxena@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg KH <greg@kroah.com> Cc: linux-usb at vger.kernel.org V2: -Changed ohci_hcd and pxa27x_ohci struct variable names. 1 ohci_hcd struct variable name is ohci. 2 pxa27x_ohci struct variable name is pxa_ohci. V3: -Rewrite the macro definition of to_pxa27x_ohci. -clk_put() function has been called before usb_put_hcd(). --- drivers/usb/host/Kconfig | 8 ++ drivers/usb/host/Makefile | 1 + drivers/usb/host/ohci-hcd.c | 5 - drivers/usb/host/ohci-pxa27x.c | 242 ++++++++++++++++++---------------------- 4 files changed, 115 insertions(+), 141 deletions(-) diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index cdfaa04..0d7ee36 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -422,6 +422,14 @@ config USB_OHCI_HCD_EP93XX Enables support for the on-chip OHCI controller on EP93XX chips. +config USB_OHCI_HCD_PXA27X + tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller" + depends on USB_OHCI_HCD && (PXA27x || PXA3xx) + default y + ---help--- + Enables support for the on-chip OHCI controller on + PXA27x/PXA3xx chips. + config USB_OHCI_HCD_AT91 tristate "Support for Atmel on-chip OHCI USB controller" depends on USB_OHCI_HCD && ARCH_AT91 diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 3fee3ea..8b7fa89 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -55,6 +55,7 @@ obj-$(CONFIG_USB_OHCI_HCD_S3CXXXX) += ohci-s3c2410.o obj-$(CONFIG_USB_OHCI_HCD_LPC32XX) += ohci-nxp.o obj-$(CONFIG_USB_OHCI_HCD_DA8XX) += ohci-da8xx.o obj-$(CONFIG_USB_OHCI_HCD_EP93XX) += ohci-ep93xx.o +obj-$(CONFIG_USB_OHCI_HCD_PXA27X) += ohci-pxa27x.o obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o obj-$(CONFIG_USB_FHCI_HCD) += fhci.o diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 3f46cff..f601dde 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1184,11 +1184,6 @@ MODULE_LICENSE ("GPL"); #define SA1111_DRIVER ohci_hcd_sa1111_driver #endif -#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) -#include "ohci-pxa27x.c" -#define PLATFORM_DRIVER ohci_hcd_pxa27x_driver -#endif - #ifdef CONFIG_USB_OHCI_HCD_PPC_OF #include "ohci-ppc-of.c" #define OF_PLATFORM_DRIVER ohci_hcd_ppc_of_driver diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 5fb91f1..394f221 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -19,15 +19,26 @@ * This file is licenced under the GPL. */ -#include <linux/device.h> -#include <linux/signal.h> -#include <linux/platform_device.h> #include <linux/clk.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/of_platform.h> #include <linux/of_gpio.h> -#include <mach/hardware.h> #include <linux/platform_data/usb-ohci-pxa27x.h> #include <linux/platform_data/usb-pxa3xx-ulpi.h> +#include <linux/platform_device.h> +#include <linux/signal.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> +#include <linux/usb/otg.h> + +#include <mach/hardware.h> + +#include "ohci.h" + +#define DRIVER_DESC "OHCI PXA27x/PXA3x driver" /* * UHC: USB Host Controller (OHCI-like) register definitions @@ -101,16 +112,16 @@ #define PXA_UHC_MAX_PORTNUM 3 -struct pxa27x_ohci { - /* must be 1st member here for hcd_to_ohci() to work */ - struct ohci_hcd ohci; +static const char hcd_name[] = "ohci-pxa27x"; + +static struct hc_driver __read_mostly ohci_pxa27x_hc_driver; - struct device *dev; +struct pxa27x_ohci { struct clk *clk; void __iomem *mmio_base; }; -#define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)hcd_to_ohci(hcd) +#define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)(hcd_to_ohci(hcd)->priv) /* PMM_NPS_MODE -- PMM Non-power switching mode @@ -122,10 +133,10 @@ struct pxa27x_ohci { PMM_PERPORT_MODE -- PMM per port switching mode Ports are powered individually. */ -static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode) +static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *pxa_ohci, int mode) { - uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA); - uint32_t uhcrhdb = __raw_readl(ohci->mmio_base + UHCRHDB); + uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA); + uint32_t uhcrhdb = __raw_readl(pxa_ohci->mmio_base + UHCRHDB); switch (mode) { case PMM_NPS_MODE: @@ -149,20 +160,18 @@ static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode) uhcrhda |= RH_A_NPS; } - __raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA); - __raw_writel(uhcrhdb, ohci->mmio_base + UHCRHDB); + __raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA); + __raw_writel(uhcrhdb, pxa_ohci->mmio_base + UHCRHDB); return 0; } -extern int usb_disabled(void); - /*-------------------------------------------------------------------------*/ -static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci, +static inline void pxa27x_setup_hc(struct pxa27x_ohci *pxa_ohci, struct pxaohci_platform_data *inf) { - uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR); - uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA); + uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR); + uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA); if (inf->flags & ENABLE_PORT1) uhchr &= ~UHCHR_SSEP1; @@ -194,17 +203,17 @@ static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci, uhcrhda |= UHCRHDA_POTPGT(inf->power_on_delay / 2); } - __raw_writel(uhchr, ohci->mmio_base + UHCHR); - __raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA); + __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR); + __raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA); } -static inline void pxa27x_reset_hc(struct pxa27x_ohci *ohci) +static inline void pxa27x_reset_hc(struct pxa27x_ohci *pxa_ohci) { - uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR); + uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR); - __raw_writel(uhchr | UHCHR_FHR, ohci->mmio_base + UHCHR); + __raw_writel(uhchr | UHCHR_FHR, pxa_ohci->mmio_base + UHCHR); udelay(11); - __raw_writel(uhchr & ~UHCHR_FHR, ohci->mmio_base + UHCHR); + __raw_writel(uhchr & ~UHCHR_FHR, pxa_ohci->mmio_base + UHCHR); } #ifdef CONFIG_PXA27x @@ -213,25 +222,26 @@ extern void pxa27x_clear_otgph(void); #define pxa27x_clear_otgph() do {} while (0) #endif -static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) +static int pxa27x_start_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev) { int retval = 0; struct pxaohci_platform_data *inf; uint32_t uhchr; + struct usb_hcd *hcd = dev_get_drvdata(dev); inf = dev->platform_data; - clk_prepare_enable(ohci->clk); + clk_prepare_enable(pxa_ohci->clk); - pxa27x_reset_hc(ohci); + pxa27x_reset_hc(pxa_ohci); - uhchr = __raw_readl(ohci->mmio_base + UHCHR) | UHCHR_FSBIR; - __raw_writel(uhchr, ohci->mmio_base + UHCHR); + uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) | UHCHR_FSBIR; + __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR); - while (__raw_readl(ohci->mmio_base + UHCHR) & UHCHR_FSBIR) + while (__raw_readl(pxa_ohci->mmio_base + UHCHR) & UHCHR_FSBIR) cpu_relax(); - pxa27x_setup_hc(ohci, inf); + pxa27x_setup_hc(pxa_ohci, inf); if (inf->init) retval = inf->init(dev); @@ -240,38 +250,39 @@ static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) return retval; if (cpu_is_pxa3xx()) - pxa3xx_u2d_start_hc(&ohci_to_hcd(&ohci->ohci)->self); + pxa3xx_u2d_start_hc(&hcd->self); - uhchr = __raw_readl(ohci->mmio_base + UHCHR) & ~UHCHR_SSE; - __raw_writel(uhchr, ohci->mmio_base + UHCHR); - __raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, ohci->mmio_base + UHCHIE); + uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) & ~UHCHR_SSE; + __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR); + __raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, pxa_ohci->mmio_base + UHCHIE); /* Clear any OTG Pin Hold */ pxa27x_clear_otgph(); return 0; } -static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev) +static void pxa27x_stop_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev) { struct pxaohci_platform_data *inf; + struct usb_hcd *hcd = dev_get_drvdata(dev); uint32_t uhccoms; inf = dev->platform_data; if (cpu_is_pxa3xx()) - pxa3xx_u2d_stop_hc(&ohci_to_hcd(&ohci->ohci)->self); + pxa3xx_u2d_stop_hc(&hcd->self); if (inf->exit) inf->exit(dev); - pxa27x_reset_hc(ohci); + pxa27x_reset_hc(pxa_ohci); /* Host Controller Reset */ - uhccoms = __raw_readl(ohci->mmio_base + UHCCOMS) | 0x01; - __raw_writel(uhccoms, ohci->mmio_base + UHCCOMS); + uhccoms = __raw_readl(pxa_ohci->mmio_base + UHCCOMS) | 0x01; + __raw_writel(uhccoms, pxa_ohci->mmio_base + UHCCOMS); udelay(10); - clk_disable_unprepare(ohci->clk); + clk_disable_unprepare(pxa_ohci->clk); } #ifdef CONFIG_OF @@ -356,7 +367,8 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device int retval, irq; struct usb_hcd *hcd; struct pxaohci_platform_data *inf; - struct pxa27x_ohci *ohci; + struct pxa27x_ohci *pxa_ohci; + struct ohci_hcd *ohci; struct resource *r; struct clk *usb_clk; @@ -409,29 +421,31 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device } /* initialize "struct pxa27x_ohci" */ - ohci = (struct pxa27x_ohci *)hcd_to_ohci(hcd); - ohci->dev = &pdev->dev; - ohci->clk = usb_clk; - ohci->mmio_base = (void __iomem *)hcd->regs; + pxa_ohci = to_pxa27x_ohci(hcd); + pxa_ohci->clk = usb_clk; + pxa_ohci->mmio_base = (void __iomem *)hcd->regs; - if ((retval = pxa27x_start_hc(ohci, &pdev->dev)) < 0) { + retval = pxa27x_start_hc(pxa_ohci, &pdev->dev); + if (retval < 0) { pr_debug("pxa27x_start_hc failed"); goto err3; } /* Select Power Management Mode */ - pxa27x_ohci_select_pmm(ohci, inf->port_mode); + pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode); if (inf->power_budget) hcd->power_budget = inf->power_budget; - ohci_hcd_init(hcd_to_ohci(hcd)); + /* The value of NDP in roothub_a is incorrect on this hardware */ + ohci = hcd_to_ohci(hcd); + ohci->num_ports = 3; retval = usb_add_hcd(hcd, irq, 0); if (retval == 0) return retval; - pxa27x_stop_hc(ohci, &pdev->dev); + pxa27x_stop_hc(pxa_ohci, &pdev->dev); err3: iounmap(hcd->regs); err2: @@ -459,88 +473,18 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device */ void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev) { - struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); + struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd); usb_remove_hcd(hcd); - pxa27x_stop_hc(ohci, &pdev->dev); + pxa27x_stop_hc(pxa_ohci, &pdev->dev); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + clk_put(pxa_ohci->clk); usb_put_hcd(hcd); - clk_put(ohci->clk); -} - -/*-------------------------------------------------------------------------*/ - -static int -ohci_pxa27x_start (struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci (hcd); - int ret; - - ohci_dbg (ohci, "ohci_pxa27x_start, ohci:%p", ohci); - - /* The value of NDP in roothub_a is incorrect on this hardware */ - ohci->num_ports = 3; - - if ((ret = ohci_init(ohci)) < 0) - return ret; - - if ((ret = ohci_run (ohci)) < 0) { - dev_err(hcd->self.controller, "can't start %s", - hcd->self.bus_name); - ohci_stop (hcd); - return ret; - } - - return 0; } /*-------------------------------------------------------------------------*/ -static const struct hc_driver ohci_pxa27x_hc_driver = { - .description = hcd_name, - .product_desc = "PXA27x OHCI", - .hcd_priv_size = sizeof(struct pxa27x_ohci), - - /* - * generic hardware linkage - */ - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - - /* - * basic lifecycle operations - */ - .start = ohci_pxa27x_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ohci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -/*-------------------------------------------------------------------------*/ - static int ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev) { pr_debug ("In ohci_hcd_pxa27x_drv_probe"); @@ -563,38 +507,43 @@ static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev) static int ohci_hcd_pxa27x_drv_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); + struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd); bool do_wakeup = device_may_wakeup(dev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); int ret; - if (time_before(jiffies, ohci->ohci.next_statechange)) + if (time_before(jiffies, ohci->next_statechange)) msleep(5); - ohci->ohci.next_statechange = jiffies; + + ohci->next_statechange = jiffies; ret = ohci_suspend(hcd, do_wakeup); if (ret) return ret; - pxa27x_stop_hc(ohci, dev); + pxa27x_stop_hc(pxa_ohci, dev); return ret; } static int ohci_hcd_pxa27x_drv_resume(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); + struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd); struct pxaohci_platform_data *inf = dev->platform_data; + struct ohci_hcd *ohci = hcd_to_ohci(hcd); int status; - if (time_before(jiffies, ohci->ohci.next_statechange)) + if (time_before(jiffies, ohci->next_statechange)) msleep(5); - ohci->ohci.next_statechange = jiffies; - if ((status = pxa27x_start_hc(ohci, dev)) < 0) + ohci->next_statechange = jiffies; + + status = pxa27x_start_hc(pxa_ohci, dev); + if (status < 0) return status; /* Select Power Management Mode */ - pxa27x_ohci_select_pmm(ohci, inf->port_mode); + pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode); ohci_resume(hcd, false); return 0; @@ -606,9 +555,6 @@ static const struct dev_pm_ops ohci_hcd_pxa27x_pm_ops = { }; #endif -/* work with hotplug and coldplug */ -MODULE_ALIAS("platform:pxa27x-ohci"); - static struct platform_driver ohci_hcd_pxa27x_driver = { .probe = ohci_hcd_pxa27x_drv_probe, .remove = ohci_hcd_pxa27x_drv_remove, @@ -623,3 +569,27 @@ static struct platform_driver ohci_hcd_pxa27x_driver = { }, }; +static const struct ohci_driver_overrides pxa27x_overrides __initconst = { + .extra_priv_size = sizeof(struct pxa27x_ohci), +}; + +static int __init ohci_pxa27x_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + ohci_init_driver(&ohci_pxa27x_hc_driver, &pxa27x_overrides); + return platform_driver_register(&ohci_hcd_pxa27x_driver); +} +module_init(ohci_pxa27x_init); + +static void __exit ohci_pxa27x_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_pxa27x_driver); +} +module_exit(ohci_pxa27x_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:pxa27x-ohci"); -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 14+ messages in thread
[parent not found: <CAJFYCKH4xMgG7XTy_Fz8J6F8ussR_NtfKJ1CnOG-N9xG1CcYKA@mail.gmail.com>]
* [PATCH 1/2] USB: OHCI: make ohci-ep93xx a separate driver [not found] <CAJFYCKH4xMgG7XTy_Fz8J6F8ussR_NtfKJ1CnOG-N9xG1CcYKA@mail.gmail.com> @ 2013-07-08 18:27 ` Alan Stern 0 siblings, 0 replies; 14+ messages in thread From: Alan Stern @ 2013-07-08 18:27 UTC (permalink / raw) To: linux-arm-kernel On Mon, 8 Jul 2013, Manjunath Goudar wrote: > > > @@ -79,7 +93,10 @@ static int usb_hcd_ep93xx_probe(const struct > > hc_driver *driver, > > > > > > ep93xx_start_hc(&pdev->dev); > > > > > > - ohci_hcd_init(hcd_to_ohci(hcd)); > > > + ohci = hcd_to_ohci(hcd); > > > + ohci->next_statechange = jiffies; > > > + spin_lock_init(&ohci->lock); > > > + INIT_LIST_HEAD(&ohci->pending); > > > > > > retval = usb_add_hcd(hcd, pdev->resource[1].start, 0); > > > if (retval == 0) > > > > Instead of ohci_hcd_ini() function call,wrote above code. You ought to be aware that usb_add_hcd() will call ohci_setup(), which calls ohci_hcd_init() -- after all, _you_ wrote ohci_setup()! So what reason is there for doing these things a second time? Alan Stern ^ permalink raw reply [flat|nested] 14+ messages in thread
end of thread, other threads:[~2013-08-12 20:19 UTC | newest]
Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
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2013-07-04 17:16 [PATCH 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar
2013-07-04 17:16 ` [PATCH 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar
2013-07-04 20:16 ` Alan Stern
2013-07-04 17:16 ` [PATCH 2/2] USB: OHCI: make ohci-pxa27x " Manjunath Goudar
2013-07-04 20:36 ` Alan Stern
2013-07-26 14:49 ` [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar
2013-07-26 14:49 ` [PATCH V3 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar
2013-07-26 14:49 ` [PATCH V3 2/2] USB: OHCI: make ohci-pxa27x " Manjunath Goudar
2013-07-26 19:01 ` Alan Stern
2013-08-10 7:41 ` [PATCH V3 0/2] USB: OHCI: more bus glues as separate modules Manjunath Goudar
2013-08-10 7:41 ` [PATCH V3 1/2] USB: OHCI: make ohci-ep93xx a separate driver Manjunath Goudar
2013-08-12 20:19 ` Greg KH
2013-08-10 7:41 ` [PATCH V3 2/2] USB: OHCI: make ohci-pxa27x " Manjunath Goudar
[not found] <CAJFYCKH4xMgG7XTy_Fz8J6F8ussR_NtfKJ1CnOG-N9xG1CcYKA@mail.gmail.com>
2013-07-08 18:27 ` [PATCH 1/2] USB: OHCI: make ohci-ep93xx " Alan Stern
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