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path: root/drivers/gpio
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2012-05-11gpio/exynos: Fix compiler warnings when non-exynos machines are selectedSachin Kamat
Fixes the following compiler warnings: drivers/gpio/gpio-samsung.c: In function ‘samsung_gpiolib_init’: drivers/gpio/gpio-samsung.c:2980:1: warning: label ‘err_ioremap1’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2978:1: warning: label ‘err_ioremap2’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2976:1: warning: label ‘err_ioremap3’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2974:1: warning: label ‘err_ioremap4’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2722:55: warning: unused variable ‘gpio_base4’ [-Wunused-variable] drivers/gpio/gpio-samsung.c:455:32: warning: ‘exynos_gpio_cfg’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2126:33: warning: ‘exynos4_gpios_1’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2228:33: warning: ‘exynos4_gpios_2’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2373:33: warning: ‘exynos4_gpios_3’ defined but not used [-Wunused-variable] Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-11gpio: pch9: Use proper flow type handlersThomas Gleixner
Jean-Francois Dagenais reported: Configuring a gpio pin with the gpio-pch driver with "IRQF_TRIGGER_LOW | IRQF_ONESHOT" generates an interrupt storm for threaded ISR until the ISR thread actually gets to physically clear the interrupt on the triggering chip!! The immediate observable symptom is the high CPU usage for my ISR thread task and the interrupt count in /proc/interrupts incrementing radically. The driver is wrong in several ways: 1) Using handle_simple_irq() does not provide proper flow control handling. In the case of oneshot threaded handlers for the demultiplexed interrupts this results in an interrupt storm because the simple handler does not deal with masking/unmasking. Even without threaded oneshot handlers an interrupt storm for level type interrupts can easily be triggered when the interrupt is disabled and the interrupt line is activated from the device. 2) Acknowlegding the demultiplexed interrupt before calling the handler is wrong for level type interrupts. 3) The set_type function unconditionally enables the interrupt. It's supposed to set the type and nothing else. The unmasking is done by the core code. Move the acknowledge code into a separate function and add it to the demux irqchip callbacks. Remove the unconditional enabling from the set_type() callback and set the proper flow handlers depending on the selected type (level/edge). Reported-and-tested-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-11gpio/omap: fix missing check in *_runtime_suspend()Tarun Kanti DebBarma
We do checking for bank->enabled_non_wakeup_gpios in order to skip redundant operations. Somehow, the check got missed while doing the cleanup series. Just to make sure that we do context restore correctly in *_runtime_resume(), the bank->workaround_enabled check is moved after context restore. Otherwise, it would prevent context restore when bank->enabled_non_wakeup_gpios is 0. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-11gpio/omap: remove cpu_is_omapxxxx() checks from *_runtime_resume()Tarun Kanti DebBarma
Add register offsets for GPIO_IRQSTATUS_RAW_0, GPIO_IRQSTATUS_RAW_0 which are present on OMAP4+ processors. Now we can distinguish conditions applicable to OMAP4,5 and those specific to OMAP24xx and OMAP3xxx. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-11gpio/omap: remove suspend/resume callbacksTarun Kanti DebBarma
Both omap_gpio_suspend() and omap_gpio_resume() does programming of wakeup_en register. _gpio_rmw(base, bank->regs->wkup_en, 0xffffffff, 0); _gpio_rmw(base, bank->regs->wkup_en, bank->context.wake_en, 1); This is redundant in omap_gpio_suspend() because wakeup_en register automatically gets initialized in _set_gpio_wakeup() and set_gpio_trigger() while being called either from chip.irq_set_wake() or chip.irq_set_type(). This is also redundant in omap_gpio_resume() because wakeup_en register is programmed in omap_gpio_restore_context() called which is called from runtime resume callback. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-11gpio/omap: remove retrigger variable in gpio_irq_handlerTarun Kanti DebBarma
commit 672e302e3c (ARM: OMAP: use edge/level handlers from generic IRQ framework) removed retrigger support in favor of using generic IRQ framework. This patch cleans up some unused remnants of that removal. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Tested-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-11gpio/omap: remove saved_wakeup field from struct gpio_bankTarun Kanti DebBarma
There is no more need to have saved_wakeup because bank->context.wake_en already holds that value. So getting rid of read/write operation associated with this field. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Tested-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-11gpio/omap: remove suspend_wakeup field from struct gpio_bankTarun Kanti DebBarma
Since we already have bank->context.wake_en to keep track of gpios which are wakeup enabled, there is no need to have this field any more. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Tested-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-11gpio/omap: remove saved_fallingdetect, saved_risingdetectTarun Kanti DebBarma
Since we already have context.fallingdetect and context.risingdetect there is no more need to have these additional fields. Also, getting rid of extra reads associated with them. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Tested-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-11gpiolib/arches: Centralise bolierplate asm/gpio.hMark Brown
Rather than requiring architectures that use gpiolib but don't have any need to define anything custom to copy an asm/gpio.h provide a Kconfig symbol which architectures must select in order to include gpio.h and for other architectures just provide the trivial implementation directly. This makes it much easier to do gpiolib updates and is also a step towards making gpiolib APIs available on every architecture. For architectures with existing boilerplate code leave a stub header in place which warns on direct inclusion of asm/gpio.h and includes linux/gpio.h to catch code that's doing this. Direct inclusion of asm/gpio.h has long been deprecated. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jonas Bonn <jonas@southpole.se> Acked-by: Tony Luck <tony.luck@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-11gpio: add MSIC gpio driverMathias Nyman
Add gpio support for Intel MSIC chips found in Intel Medfield platforms. MSIC supports totally 24 GPIOs with 16 low voltage and 8 high voltage pins. Driver uses MSIC mfd interface for MSIC access. (Updated comment to indicate why locking is actually safe) Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-11gpio: samsung: refactor gpiolib init for exynos4/5Olof Johansson
Only code move, no functional change. Main reason to do this was to get rid of the warnings: drivers/gpio/gpio-samsung.c: In function 'samsung_gpiolib_init': drivers/gpio/gpio-samsung.c:2974:1: warning: label 'err_ioremap4' defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2722:47: warning: unused variable 'gpio_base4' [-Wunused-variable] without adding more ifdef mess. I think this whole file would do well being coverted over to a platform driver and moving most of the tables out to SoC code and/or device trees, but since that changes init ordering it needs to be done with some care, i.e. not at this time. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-11gpio: move the Nomadik GPIO driver to pinctrlLinus Walleij
I'm moving this driver over to the pinctrl subsystem to convert the custom pin mux/config scheme over to use pinctrl. Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-05-10gpio/langwell: re-read the IRQ status register after each iterationMika Westerberg
The IRQ status register should be re-read after each iteration. Otherwise the loop misses the interrupt if it gets raised immediately after handled. Reported-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-10gpio/omap: fix incorrect initialization of omap_gpio_mod_initTarun Kanti DebBarma
Initialization of irqenable, irqstatus registers is the common operation done in this function for all OMAP platforms, viz. OMAP1, OMAP2+. The latter _gpio_rmw()'s which supposedly got introduced wrongly to take care of OMAP2+ platforms were overwriting initially programmed OMAP1 value breaking functionality on OMAP1. Somehow incorrect assumption was made that each _gpio_rmw()'s were mutually exclusive. On close observation it is found that the first _gpio_rmw() which is supposedly done to take care of OMAP1 platform is generic enough and takes care of OMAP2+ platform as well. Therefore remove the latter _gpio_rmw() to irqenable as they are redundant now. Writing to ctrl and debounce_en registers for OMAP2+ platforms are modified to match the original(pre-cleanup) code where the registers are initialized with 0. In the cleanup series since we are using _gpio_rmw(reg, 0, 1), instead of __raw_writel(), we are just reading and writing the same values to ctrl and debounce_en. This is not an issue for debounce_en register because it has 0x0 as the default value. But in the case of ctrl register the default value is 0x2 (GATINGRATIO = 0x1) so that we end up writing 0x2 instead of intended 0 value. Therefore changing back to __raw_writel() as this is sufficient for this case besides simpler to understand. Also, change irqstatus initalization logic that avoids comparison with bool, besides making it fit in a single line. Cc: stable@vger.kernel.org Cc: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Reported-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-09Merge branch 'for-3.5/dt' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/dt2 By Stephen Warren (29) and others via Stephen Warren * 'for-3.5/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (43 commits) ARM: dt: tegra trimslice: add support for audio ARM: dt: tegra trimslice: enable SDHCI1 controller ARM: dt: tegra trimslice: add RTC I2C device ARM: dt: tegra seaboard: add i2c devices ARM: dt: tegra seaboard: configure I2C2 pinmux ARM: dt: tegra seaboard: fix I2C2 SCL rate ARM: dt: tegra: enable als and proximity sensor + pinctrl mergebase branch The pinctrl mergebase branch merge conflicts in drivers/pinctrl/core.c that were resolved. Signed-off-by: Olof Johansson <olof@lixom.net>
2012-05-09Merge branch 'for-3.5/gpio-pinmux' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/pinctrl By Stephen Warren via Stephen Warren * 'for-3.5/gpio-pinmux' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: pinctrl: tegra: error reporting cleanup pinctrl: tegra: debugfs enhancements pinctrl: tegra: refactor probe handling ARM: dt: tegra20: add pinmux to device tree ARM: dt: tegra cardhu: add pinmux to device tree ARM: tegra: Remove pre-pinctrl pinmux driver ARM: tegra: Switch to new pinctrl driver gpio: tegra: Hide tegra_gpio_enable/disable() ARM: tegra: seaboard: Don't gpio_request() ISL29018_IRQ gpio: tegra: configure pins during irq_set_type ARM: tegra: Remove VBUS_GPIO handling from board files usb: ehci-tegra: Add vbus_gpio to platform data
2012-05-09gpio: Add STA2X11 GPIO blockAlessandro Rubini
This introduces 128 gpio bits (for each PCI device installed) with working interrupt support. Signed-off-by: Alessandro Rubini <rubini@gnudd.com> Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-05-08gpio/langwell: convert to use irq_domainMika Westerberg
irq_domain already provides a facility to translate from hardware IRQ numbers to Linux IRQ numbers so use that instead of open-coding the logic in the driver. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-08Merge tag 'v3.4-rc6' into gpio/nextGrant Likely
Linux 3.4-rc6
2012-05-05gpio: pxa: parse gpio from DTS fileHaojian Zhuang
Parse GPIO numbers from DTS file. Allocate interrupt according to GPIO numbers. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-05-04gpiolib: Convert to devres_release()Mark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-01gpio: Add support for Intel ICHx/3100/Series[56] GPIOPeter Tyser
This driver works on many Intel chipsets, including the ICH6, ICH7, ICH8, ICH9, ICH10, 3100, Series 5/3400 (Ibex Peak), Series 6/C200 (Cougar Point), and NM10 (Tiger Point). Additional Intel chipsets should be easily supported if needed, eg the ICH1-5, EP80579, etc. Tested on QM67 (Cougar Point), QM57 (Ibex Peak), 3100 (Whitmore Lake), and NM10 (Tiger Point). Includes work from Jean Delvare: - Resource leak removal during module load/unload - GPIO API bit value enforcement Also includes code cleanup from Guenter Roeck and Grant Likely. Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Aaron Sierra <asierra@xes-inc.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-04-27ARM: pxa: fix gpio wakeup settingRobert Jarzmik
In 3.3, gpio wakeup setting was broken. The call enable_irq_wake() didn't set up the PXA gpio registers (PWER, ...) anymore. Fix it at least for pxa27x. The driver doesn't seem to be used in pxa25x (weird ...), and the fix doesn't extend to pxa3xx and pxa95x (which don't have a gpio_set_wake() available). Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-04-24drivers/gpio: gpio-nomadik: Add support for irqdomainsLee Jones
Add irq domain support to the gpio-nomadik GPIO driver. This enables its users to support dynamic IRQ assignment, which is requried by Device Tree. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-24drivers/gpio: gpio-nomadik: Apply Device Tree bindingsLee Jones
This creates Device Tree bindings for the Nomadik GPIO driver. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-24gpio/nomadik: use ioremap() instead of static mappingsLinus Walleij
We were using a custom io_p2v() (physical-to-virtual) translation macro, but it's fully possible to just ioremap() this memory now, so skip use of static addresses altogether. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-23gpio/nomadik: support low EMI modeRabin Vincent
Low EMI (Electro-Magnetic Interference) mode means lower slew rate on the signals. The Nomadik GPIO controller supports this so create an interface to enable it. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-23gpio/nomadik: fix spurious interrupts with SKERabin Vincent
If the pin is switching to altfunc, and there was an interrupt installed on it which has been lazy disabled, actually mask the interrupt to prevent spurious interrupts that would occur while the pin is under control of the peripheral. Only SKE does this. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-23gpio/nomadik: cache [rf]w?imscRabin Vincent
Cache two more registers in the GPIO controller. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-23gpio/nomadik: don't set SLPM to 1 for non-wakeup pinsRabin Vincent
Setting GPIOs' SLPM value to 1 (WAKEUP_DISABLE) is seen to cause increased power consumption in sleep/deep-sleep. So remove the code which disables SLPM based on the wakeup settings and only ensure it is on as needed. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-04-18gpio: tegra: Hide tegra_gpio_enable/disable()Stephen Warren
Recent pinctrl discussions concluded that gpiolib APIs should in fact do whatever is required to mux a GPIO onto pins, by calling pinctrl APIs if required. This change implements this for the Tegra GPIO driver, and removes calls to the Tegra-specific APIs from drivers and board files. Cc: Chris Ball <cjb@laptop.org> Cc: linux-mmc@vger.kernel.org Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Chris Ball <cjb@laptop.org> # for sdhci-tegra.c Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Olof Johansson <olof@lixom.net>
2012-04-18gpio: tegra: configure pins during irq_set_typeStephen Warren
When a Tegra GPIO is used as an IRQ, it should be enabled as a GPIO (so the pinmux module isn't driving it as an output) and configured as a GPIO input (so the GPIO module isn't driving it as an output). Set this up automatically whenever an IRQ is requested, so that users of IRQs don't need to do this. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Olof Johansson <olof@lixom.net>
2012-04-10gpio/exynos: Fix compiler warning in gpio-samsung.c fileSachin Kamat
Fixes the following warning when "SAMSUNG EXYNOS5" is not selected: warning: ‘exynos5_gpios_1’ defined but not used [-Wunused-variable] warning: ‘exynos5_gpios_2’ defined but not used [-Wunused-variable] warning: ‘exynos5_gpios_3’ defined but not used [-Wunused-variable] warning: ‘exynos5_gpios_4’ defined but not used [-Wunused-variable] Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-04-10gpio: Fix uninitialized variable bit in adp5588_irq_handlerAxel Lin
The variable 'bit' is uninitialized in the first iteration of for loop. Fix it. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-04-10gpio/sodaville: Convert sodaville driver to new irqdomain APIGrant Likely
The irqdomain api changed significantly in v3.4 which caused a build failure for this driver. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Hans J. Koch <hjk@linutronix.de> Cc: Torben Hohn <torbenh@linutronix.de>
2012-04-07gpio: Move DT support code into drivers/gpioGrant Likely
The code in drivers/of/gpio.c isn't shared by any other subsystem since it is all gpiolib specific. drivers/gpio is a better place to maintain these functions. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Linus Walleij <linus.walleij@stericsson.com>
2012-04-07gpio: Convert drivers to use module_pci_driver()Axel Lin
This patch converts the drivers in drivers/gpio/* to use module_pci_driver() macro which makes the code smaller and a bit simpler by having less boilerplate. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-04-06gpio/pca953x: Update GPIO_PCA953X Kconfig entry to include more supported ↵Axel Lin
devices The Kconfig description and help text doesn't list all of the devices supported by this driver. This patch adds the PCA957x devices. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-04-05gpio/langwell: clear IRQ edge detect registers at initMika Westerberg
The boot firmware might leave the registers configured causing interrupts to happen even when no handler for them is yet registered. Fix this by clearing the IRQ edge detect registers at init. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-04-05gpio/langwell: allocate IRQ descriptors dynamically for SPARSE_IRQMika Westerberg
Since x86 is using SPARSE_IRQ by default nowadays it means that we need to allocate IRQ descriptors dynamically using irq_alloc_descs() otherwise the genirq code fails to convert our irq numbers to suitable descriptors. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-04-05gpio/langwell: use devm_* helpers to simplify probeMika Westerberg
Use devm_* helper functions where possible to make the error handling in the probe function simpler. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-04-05gpio: add flags to export GPIOs when requestingWolfram Sang
Introduce new flags to automatically export GPIOs when using the convenience functions gpio_request_one() or gpio_request_array(). This eases support for custom boards where lots of GPIOs need to be exported for customer applications. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-04-04gpio: tegra: Iterate over the correct number of banksStephen Warren
When Tegra30 support was added to the Tegra GPIO driver, a few places which iterated over all banks were not converted to use the variable tegra_gpio_bank_count rather than hard-coding the bank count. Fix this. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Olof Johansson <olof@lixom.net>
2012-04-04gpio: tegra: fix register address calculations for Tegra30Stephen Warren
Tegra20 and Tegra30 share the same register layout within registers, but the addresses of the registers is a little different. Fix the driver to cope with this. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Olof Johansson <olof@lixom.net>
2012-03-29Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull more ARM updates from Russell King. This got a fair number of conflicts with the <asm/system.h> split, but also with some other sparse-irq and header file include cleanups. They all looked pretty trivial, though. * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (59 commits) ARM: fix Kconfig warning for HAVE_BPF_JIT ARM: 7361/1: provide XIP_VIRT_ADDR for no-MMU builds ARM: 7349/1: integrator: convert to sparse irqs ARM: 7259/3: net: JIT compiler for packet filters ARM: 7334/1: add jump label support ARM: 7333/2: jump label: detect %c support for ARM ARM: 7338/1: add support for early console output via semihosting ARM: use set_current_blocked() and block_sigmask() ARM: exec: remove redundant set_fs(USER_DS) ARM: 7332/1: extract out code patch function from kprobes ARM: 7331/1: extract out insn generation code from ftrace ARM: 7330/1: ftrace: use canonical Thumb-2 wide instruction format ARM: 7351/1: ftrace: remove useless memory checks ARM: 7316/1: kexec: EOI active and mask all interrupts in kexec crash path ARM: Versatile Express: add NO_IOPORT ARM: get rid of asm/irq.h in asm/prom.h ARM: 7319/1: Print debug info for SIGBUS in user faults ARM: 7318/1: gic: refactor irq_start assignment ARM: 7317/1: irq: avoid NULL check in for_each_irq_desc loop ARM: 7315/1: perf: add support for the Cortex-A7 PMU ...
2012-03-28Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
Pull GPIO changes for v3.4 from Grant Likely: "Primarily gpio device driver changes with some minor side effects under arch/arm and arch/x86. Also includes a few core changes such as explicitly supporting (electrical) open source and open drain outputs and some help for parsing gpio devicetree properties." Fix up context conflict due to Laxman Dewangan adding sleep control for the tps65910 driver separately for gpio's and regulators. * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits) gpio/ep93xx: Remove unused inline function and useless pr_err message gpio/sodaville: Mark broken due to core irqdomain migration gpio/omap: fix redundant decoding of gpio offset gpio/omap: fix incorrect update to context.irqenable1 gpio/omap: fix incorrect context restore logic in omap_gpio_runtime_* gpio/omap: fix missing dataout context save in _set_gpio_dataout_reg gpio/omap: fix _set_gpio_irqenable implementation gpio/omap: fix trigger type to unsigned gpio/omap: fix wakeup_en register update in _set_gpio_wakeup() gpio: tegra: tegra_gpio_config shouldn't be __init gpio/davinci: fix enabling unbanked GPIO IRQs gpio/davinci: fix oops on unbanked gpio irq request gpio/omap: Fix section warning for omap_mpuio_alloc_gc() ARM: tegra: export tegra_gpio_{en,dis}able gpio/gpio-stmpe: Fix the value returned by _get_value routine Documentation/gpio.txt: Explain expected pinctrl interaction GPIO: LPC32xx: Add output reading to GPO P3 GPIO: LPC32xx: Fix missing bit selection mask gpio/omap: fix wakeups on level-triggered GPIOs gpio/omap: Fix IRQ handling for SPARSE_IRQ ...
2012-03-28Merge tag 'mfd_3.4-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFD changes from Samuel Ortiz: - 4 new drivers: Freescale i.MX on-chip Anatop, Ricoh's RC5T583 and TI's TPS65090 and TPS65217. - New variants support (8420, 8520 ab9540), cleanups and bug fixes for the abx500 and db8500 ST-E chipsets. - Some minor fixes and update for the wm8994 from Mark. - The beginning of a long term TWL cleanup effort coming from the TI folks. - Various fixes and cleanups for the s5m, TPS659xx, pm860x, and MAX8997 drivers. Fix up trivial conflicts due to duplicate patches and header file cleanups (<linux/device.h> removal etc). * tag 'mfd_3.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (97 commits) gpio/twl: Add DT support to gpio-twl4030 driver gpio/twl: Allocate irq_desc dynamically for SPARSE_IRQ support mfd: Detach twl6040 from the pmic mfd driver mfd: Replace twl-* pr_ macros by the dev_ equivalent and do various cleanups mfd: Micro-optimization on twl4030 IRQ handler mfd: Make twl4030 SIH SPARSE_IRQ capable mfd: Move twl-core IRQ allocation into twl[4030|6030]-irq files mfd: Remove references already defineid in header file from twl-core mfd: Remove unneeded header from twl-core mfd: Make twl-core not depend on pdata->irq_base/end ARM: OMAP2+: board-omap4-*: Do not use anymore TWL6030_IRQ_BASE in board files mfd: Return twl6030_mmc_card_detect IRQ for board setup Revert "mfd: Add platform data for MAX8997 haptic driver" mfd: Add support for TPS65090 mfd: Add some da9052-i2c section annotations mfd: Build rtc5t583 only if I2C config is selected to y. mfd: Add anatop mfd driver mfd: Fix compilation error in tps65910.h mfd: Add 8420 variant to db8500-prcmu mfd: Add 8520 PRCMU variant to db8500-prcmu ...
2012-03-28Merge tag 'drivers2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull "ARM: More SoC driver updates" from Olof Johansson: "This branch contains a handful of driver updates, mostly to the LPC32xx platform but also for Samsung EXYNOS and Davinci. It had a few context conflicts against patches already merged through fixes-non-critical. We should have resolved this early during the development cycle by pulling them in as a dependency, instead I did it after the fact this time." * tag 'drivers2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: gpio/samsung: use ioremap() for EXYNOS4 GPIOlib gpio/samsung: add support GPIOlib for EXYNOS5250 ARM: EXYNOS: add support GPIO for EXYNOS5250 ARM: LPC32xx: Ethernet support ARM: LPC32xx: USB Support ARM: davinci: dm644x evm: add support for VPBE display ARM: davinci: dm644x: add support for v4l2 video display ARM: EXYNOS: Hook up JPEG PD to generic PD infrastructure ARM: EXYNOS: Hook up G2D PD to generic PD infrastructure arm: lpc32xx: phy3250: add rtc & touch device ARM: LPC32xx: clock.c: Clock registration fixes ARM: LPC32xx: clock.c: jiffies wrapping ARM: LPC32xx: clock.c: Missing header file ARM: LPC32XX: Remove broken non-static declaration ARM: LPC32xx: clock.c: Fix mutex lock issues ARM: LPC32xx: clock.c: warning fix ARM: LPC32xx: Added lpc32xx_defconfig
2012-03-27Merge branch 'platforms' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull ARM platform updates from Russell King: "This covers platform stuff for platforms I have a direct interest in (iow, I have the hardware). Essentially: - as we no longer support any other Acorn platforms other than RiscPC anymore, we can collect all that code into mach-rpc. - convert Acorn expansion card stuff to use IRQ allocation functions, and get rid of NO_IRQ from there. - cleanups to the ebsa110 platform to move some private stuff out of its header files. - large amount of SA11x0 updates: - conversion of private DMA implementation to DMA engine support (this actually gives us greater flexibility in drivers over the old API.) - re-worked ucb1x00 updates - convert to genirq, remove sa11x0 dependencies, fix various minor issues - move platform specific sa11x0 framebuffer data into platform files in arch/arm instead of keeping this in the driver itself - update sa11x0 IrDA driver for DMA engine, and allow it to use DMA for SIR transmissions as well as FIR - rework sa1111 support for genirq, and irq allocation - fix sa1111 IRQ support so it works again - use sparse IRQ support After this, I have one more pull request remaining from my current set, which I think is going to be the most problematical as it generates 8 conflicts." Fixed up the trivial conflict in arch/arm/mach-rpc/Makefile as per Russell. * 'platforms' of git://git.linaro.org/people/rmk/linux-arm: (125 commits) ARM: 7343/1: sa11x0: convert to sparse IRQ ARM: 7342/2: sa1100: prepare for sparse irq conversion ARM: 7341/1: input: prepare jornada720 keyboard and ts for sa11x0 sparse irq ARM: 7340/1: rtc: sa1100: include mach/irqs.h instead of asm/irq.h ARM: sa11x0: remove unused DMA controller definitions ARM: sa11x0: remove old SoC private DMA driver USB: sa1111: add hcd .reset method USB: sa1111: add OHCI shutdown methods USB: sa1111: reorganize ohci-sa1111.c USB: sa1111: get rid of nasty printk(KERN_DEBUG "%s: ...", __FILE__) USB: sa1111: sparse and checkpatch cleanups ARM: sa11x0: don't static map sa1111 ARM: sa1111: use dev_err() rather than printk() ARM: sa1111: cleanup sub-device registration and unregistration ARM: sa1111: only setup DMA for DMA capable devices ARM: sa1111: register sa1111 devices with dmabounce in bus notifier ARM: sa1111: move USB interface register definitions to ohci-sa1111.c ARM: sa1111: move PCMCIA interface register definitions to sa1111_generic.c ARM: sa1111: move PS/2 interface register definitions to sa1111p2.c ARM: sa1111: delete unused physical GPIO register definitions ...
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