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path: root/drivers/usb/host/ohci-exynos.c
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2013-01-25Merge tag 'xceiv-for-v3.9' of ↵Greg Kroah-Hartman1-21/+64
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next Felipe writes: usb: xceiv: patches for v3.9 merge window Two new PHY drivers coming here: one for Samsung, one for OMAP. Both architectures are adding USB3 support to mainline kernel. The PHY layer now allows us to have mulitple PHYs of the same type, which is necessary for platforms which provide more than one USB peripheral port. There's also a few cleanups here: removal of __dev* annotations, conversion of a cast to to_delayed_work(), and mxs-phy learns about ->set_suspend.
2013-01-25usb: ehci-s5p/ohci-exynos: Fix compatible strings for the deviceVivek Gautam1-1/+1
Using specific chip in compatible strings. Newer SOCs can claim device by using older string in the compatible list. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: Doug Anderson <dianders@chromium.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23USB: ohci-exynos: Add phy driver supportVivek Gautam1-21/+63
Adding the phy-driver to ohci-exynos. Keeping the platform data for continuing the smooth operation for boards which still uses it Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-23ARM: EXYNOS: Update & move usb-phy types to generic include layerVivek Gautam1-4/+5
Updating the names of usb-phy types to more generic names: USB_PHY_TYPE_DEIVCE & USB_PHY_TYPE_HOST; and further update its dependencies. Signed-off-by: Praveen Paneri <p.paneri@samsung.com> Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-11-22usb: remove use of __devexitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Li Yang <leoli@freescale.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-22usb: remove use of __devinitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Li Yang <leoli@freescale.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Geoff Levand <geoff@infradead.org> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Olav Kongas <ok@artecdesign.ee> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-22usb: remove use of __devexit_pBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Li Yang <leoli@freescale.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-02USB: ohci-exynos: initialize registers pointer earlierVincent Palatin1-4/+6
In the former code, we have a race condition between the first interrupt and the regs field initilization in the usb_hcd structure. If the OHCI irq fires before hcd->regs is set, we are getting a null pointer dereference in ohci_irq. When calling usb_add_hcd(), it first executes the reset() callback, then enables the ohci interrupt, and finally executes the start() callback. So moving the ohci_init() call which actually initializes the reg field from start() to reset() should remove the race. Tested by enabling the external HSIC hub in the bootloader on an exynos5 machine and booting. With the former code, this triggers an early interrupt about 50% of the boots and a subsequent kernel panic in ohci_irq when trying to access the registers. Cc: Olof Johansson <olofj@chromium.org> Cc: Doug Anderson <dianders@chromium.org> Cc: Arjun.K.V <arjun.kv@samsung.com> Cc: Vikas Sajjan <vikas.sajjan@samsung.com> Cc: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-25USB: ohci-exynos: use devm_clk_get()Jingoo Han1-5/+2
The devm_ functions allocate memory that is released when a driver detaches. This patch uses devm_clk_get() for these functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-25usb: ohci-exynos: use clk_prepare_enable and clk_disable_unprepareThomas Abraham1-5/+5
Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare calls as required by common clock framework. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-22USB: ohci: merge ohci_finish_controller_resume with ohci_resumeFlorian Fainelli1-4/+1
Merge ohci_finish_controller_resume with ohci_resume as suggested by Alan Stern. Since ohci_finish_controller_resume no longer exists, update the various OHCI drivers to call ohci_resume() instead. Some drivers used to set themselves the bit HCD_FLAG_HW_ACCESSIBLE, which is now handled by ohci_resume(). Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Florian Fainelli <florian@openwrt.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-19ARM: samsung: move platform_data definitionsArnd Bergmann1-1/+1
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the samsung include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Bryan Wu <bryan.wu@canonical.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Chris Ball <cjb@laptop.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Felipe Balbi <balbi@ti.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Liam Girdwood <lrg@ti.com> Cc: linux-samsung-soc@vger.kernel.org
2012-07-17USB: ohci-exynos: Add support for device treeVivek Gautam1-0/+22
This patch adds support to parse probe data for ohci driver for exynos using device tree. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-06USB: ohci-exynos: use devm_ functionsJingoo Han1-13/+6
The devm_ functions allocate memory that is released when a driver detaches. This makes the code smaller and a bit simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-06USB: ohci-exynos: add clock gating to suspend/resumeJingoo Han1-0/+5
This patch adds clock gating to suspend and resume functions. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-27USB: ohci-exynos.c: remove err() usageGreg Kroah-Hartman1-1/+2
err() was a very old USB-specific macro that I thought had gone away. This patch removes it from being used in the driver and uses dev_err() instead. CC: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-25USB: ohci-exynos: replace hcd->state with ohci->rh_stateJingoo Han1-4/+2
This patch removes uses of hcd->state and replaces hcd->state with ohci->rh_state field. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2011-12-23USB: Add Samsung Exynos OHCI diverJingoo Han1-0/+274
This patch adds USB OHCI driver for Samsung EXYNOS SoCs. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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