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path: root/drivers/gpio/gpio-tegra.c (follow)
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* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282Thomas Gleixner2019-06-051-10/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this software is licensed under the terms of the gnu general public license version 2 as published by the free software foundation and may be copied distributed and modified under those terms this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 285 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: gpio: tegra: use devm_platform_ioremap_resource()Enrico Weigelt, metux IT consult2019-04-041-3/+1
| | | | | | | | | Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Fix offset of pinctrl callsLinus Walleij2019-02-191-4/+21
| | | | | | | | | | | | This patch hunk is a lightly modified version of a diff found in a Tegra code dump from a product tree. It makes a lot of sense because this is what most drivers do. Cc: Thierry Reding <treding@nvidia.com> Cc: Stefan Agner <stefan@agner.ch> Cc: Dmitry Osipenko <digetx@gmail.com> Cc: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: gpio-tegra: simplify getting .driver_dataWolfram Sang2018-11-051-4/+2
| | | | | | | | | We should get 'driver_data' from 'struct device' directly. Going via platform_device is an unneeded step back and forth. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* Merge tag 'gpio-v4.19-1' of ↵Linus Torvalds2018-08-161-18/+10
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for the v4.19 kernel cycle. I don't know if anything in particular stands out. Maybe the Aspeed coprocessor thing from Benji: Aspeed is doing baseboard management chips (BMC's) for servers etc. These Aspeed's are ARM processors that exist inside (I guess) Intel servers, and they are moving forward to using mainline Linux in those. This is one of the pieces of the puzzle to achive that. They are doing OpenBMC, it's pretty cool: https://lwn.net/Articles/683320/ Summary: Core changes: - Add a new API for explicitly naming GPIO consumers, when needed. - Don't let userspace set values on input lines. While we do not think anyone would do this crazy thing we better plug the hole before someone uses it and think it's a nifty feature. - Avoid calling chip->request() for unused GPIOs. New drivers/subdrivers: - The Mediatek MT7621 is supported which is a big win for OpenWRT and similar router distributions using this chip, as it seems every major router manufacturer on the planet has made products using this chip: https://wikidevi.com/wiki/MediaTek_MT7621 - The Tegra 194 is now supported. - The IT87 driver now supports IT8786E and IT8718F super-IO chips. - Add support for Rockchip RK3328 in the syscon GPIO driver. Driver changes: - Handle the get/set_multiple() properly on MMIO chips with inverted direction registers. We didn't have this problem until a new chip appear that has get/set registers AND inverted direction bits, OK now we handle it. - A patch series making more error codes percolate upward properly for different errors on gpiochip_lock_as_irq(). - Get/set multiple for the OMAP driver, accelerating these multiple line operations if possible. - A coprocessor interface for the Aspeed driver. Sometimes a few GPIO lines need to be grabbed by a co-processor for doing automated tasks, sometimes they are available as GPIO lines. By adding an explicit API in this driver we make it possible for the two line consumers to coexist. (This work was made available on the ib-aspeed branch, which may be appearing in other pull requests.) - Implemented .get_direction() and open drain in the SCH311x driver. - Continuing cleanup of included headers in GPIO drivers" * tag 'gpio-v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (80 commits) gpio: it87: Add support for IT8613 gpio: it87: add support for IT8718F Super I/O. gpiolib: Avoid calling chip->request() for unused gpios gpio: tegra: Include the right header gpio: mmio: Fix up inverted direction registers gpio: xilinx: Use the right include gpio: timberdale: Include the right header gpio: tb10x: Use the right include gpiolib: Fix of_node inconsistency gpio: vr41xx: Bail out on gpiochip_lock_as_irq() error gpio: uniphier: Bail out on gpiochip_lock_as_irq() error gpio: xgene-sb: Don't shadow error code of gpiochip_lock_as_irq() gpio: em: Don't shadow error code of gpiochip_lock_as_irq() gpio: dwapb: Don't shadow error code of gpiochip_lock_as_irq() gpio: bcm-kona: Don't shadow error code of gpiochip_lock_as_irq() gpiolib: Don't shadow error code of gpiochip_lock_as_irq() gpio: syscon: rockchip: add GRF GPIO support for rk3328 gpio: omap: Add get/set_multiple() callbacks gpio: pxa: remove set but not used variable 'gpio_offset' gpio-it87: add support for IT8786E Super I/O ...
| * gpio: tegra: Include the right headerLinus Walleij2018-08-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | This is a GPIO driver so include only <linux/gpio/driver.h>. Drop the use of GPIOF_* flags: these are for consumers, not drivers. Just return 0/1. Cc: Stefan Agner <stefan@agner.ch> Cc: Thierry Reding <treding@nvidia.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: tegra: drop tegra specific GPIO lockdep classesStefan Agner2018-07-291-9/+0
| | | | | | | | | | | | | | | | | | | | | | Since commit e45d1c80c0ee ("gpio: put GPIO IRQs into their own lock class") and commit a0a8bcf4670c ("gpiolib: irqchip: use different lockdep class for each gpio irqchip") GPIO lib takes care of lockdep classes. In fact, gpiochip_irq_map() overwrites the class anyway, so the lockdep class set by the driver is useless. Remove it. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: tegra: Fix tegra_gpio_irq_set_type()Dmitry Osipenko2018-07-291-7/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 36b312792b97 ("gpiolib: Respect error code of ->get_direction()") broke tegra_gpio_irq_set_type() because requesting of GPIO direction must be done after enabling GPIO function for a pin. This patch fixes drivers probe failure like this: gpio gpiochip0: (tegra-gpio): gpiochip_lock_as_irq: cannot get GPIO direction tegra-gpio 6000d000.gpio: unable to lock Tegra GPIO 144 as IRQ Fixes: 36b312792b97 ("gpiolib: Respect error code of ->get_direction()") Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | gpio: tegra: Move driver registration to subsys_init levelDmitry Osipenko2018-08-031-1/+1
|/ | | | | | | | | | | | | | | | | There is a bug in regards to deferred probing within the drivers core that causes GPIO-driver to suspend after its users. The bug appears if GPIO-driver probe is getting deferred, which happens after introducing dependency on PINCTRL-driver for the GPIO-driver by defining "gpio-ranges" property in device-tree. The bug in the drivers core is old (more than 4 years now) and is well known, unfortunately there is no easy fix for it. The good news is that we can workaround the deferred probe issue by changing GPIO / PINCTRL drivers registration order and hence by moving PINCTRL driver registration to the arch_init level and GPIO to the subsys_init. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Acked-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Convert to use DEFINE_SHOW_ATTRIBUTE macroAxel Lin2018-02-221-13/+3
| | | | | | | Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* kernel/irq: Extend lockdep class for request mutexAndrew Lunn2017-12-281-1/+3
| | | | | | | | | | | | | | | The IRQ code already has support for lockdep class for the lock mutex in an interrupt descriptor. Extend this to add a second class for the request mutex in the descriptor. Not having a class is resulting in false positive splats in some code paths. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: linus.walleij@linaro.org Cc: grygorii.strashko@ti.com Cc: f.fainelli@gmail.com Link: https://lkml.kernel.org/r/1512234664-21555-1-git-send-email-andrew@lunn.ch
* pinctrl/gpio: Unify namespace for cross-callsLinus Walleij2017-09-221-2/+2
| | | | | | | | | The pinctrl_request_gpio() and pinctrl_free_gpio() break the nice namespacing in the other cross-calls like pinctrl_gpio_foo(). Just rename them and all references so we have one namespace with all cross-calls under pinctrl_gpio_*(). Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Use unsigned int where possibleThierry Reding2017-08-141-32/+24
| | | | | | | | | In most of the cases, integers in this file can't be negative, so the type can be more restricted for clarity. Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Fix checkpatch warningsThierry Reding2017-08-141-12/+20
| | | | | | | | | | Fix a couple of checkpatch warnings, such as complaints about bare unsigned being used (instead of unsigned int) and missing blank lines after declarations. Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Prefer kcalloc() over kzalloc() with multipliesThierry Reding2017-08-141-2/+2
| | | | | | | | | Rather than manually compute the size of an array, pass the number and element size to kcalloc(). Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Remove unnecessary checkThierry Reding2017-08-141-9/+2
| | | | | | | | | of_device_get_match_data() can never return NULL, therefore the check for NULL values is unnecessary. Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Use platform_get_irq()Thierry Reding2017-08-141-5/+5
| | | | | | | | | Instead of using platform_get_resource() and getting the interrupts from the resource, use platform_get_irq() which is slightly easier to use and covers some special cases that the former doesn't. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Use platform_irq_count()Thierry Reding2017-08-141-7/+6
| | | | | | | Use platform_irq_count() instead of open-coding the same code sequence. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: remove gpio_to_irq() from hw irq handlersGrygorii Strashko2017-08-141-1/+2
| | | | | | | | | gpio_to_irq() API expected to be used by GPIO consumers and not drivers and there are no guarantee that its gpiolib implementation is irq safe. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: fix unbalanced chained_irq_enter/exitMichał Mirosław2017-08-021-3/+3
| | | | | | | | | | | When more than one GPIO IRQs are triggered simultaneously, tegra_gpio_irq_handler() called chained_irq_exit() multiple times for one chained_irq_enter(). Fixes: 3c92db9ac0ca3eee8e46e2424b6c074e2e394ad9 Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> [Also changed the variable to a bool] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* pinctrl / gpio: Introduce .set_config() callback for GPIO chipsMika Westerberg2017-01-261-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we already have two pin configuration related callbacks available for GPIO chips .set_single_ended() and .set_debounce(). In future we expect to have even more, which does not scale well if we need to add yet another callback to the GPIO chip structure for each possible configuration parameter. Better solution is to reuse what we already have available in the generic pinconf. To support this, we introduce a new .set_config() callback for GPIO chips. The callback takes a single packed pin configuration value as parameter. This can then be extended easily beyond what is currently supported by just adding new types to the generic pinconf enum. If the GPIO driver is backed up by a pinctrl driver the GPIO driver can just assign gpiochip_generic_config() (introduced in this patch) to .set_config and that will take care configuration requests are directed to the pinctrl driver. We then convert the existing drivers over .set_config() and finally remove the .set_single_ended() and .set_debounce() callbacks. Suggested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Make lockdep class file-scopedThierry Reding2016-06-221-2/+7
| | | | | | | | | | | | | | | Commit b546be0db955 ("gpio: tegra: Get rid of all file scoped global variables") moved all file scoped variables into the driver-private structure to allow potentially multiple instances of the driver. The change also included turning the lockdep class into a driver-private field, which doesn't work and produces error messages such as this: [ 0.142310] BUG: key ffff8000fb3f7ab0 not in .data! Make the lockdep class file-scoped again to fix this issue. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Implement gpio_get_direction callbackLaxman Dewangan2016-04-301-0/+16
| | | | | | | | | | | | Implement gpio_get_direction() callback for Tegra GPIO. The direction is only valid if the pin is configured as GPIO. If pin is not configured in GPIO mode then this function return error. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Add support for gpio debounceLaxman Dewangan2016-04-291-1/+68
| | | | | | | | | | | | | NVIDIA's Tegra210 support the HW debounce in the GPIO controller for all its GPIO pins. Add support for setting debounce timing by implementing the set_debounce callback of gpiochip. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Get rid of all file scoped global variablesLaxman Dewangan2016-04-291-152/+198
| | | | | | | | | | | Move the file scoped multiple global variable from Tegra GPIO driver to the structure and make this as gpiochip data which can be referred from GPIO chip callbacks. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Make of_device_id compatible data to constantLaxman Dewangan2016-04-291-2/+2
| | | | | | | | | | | The data member of the of_device_id is the constant type and hence all static structure which is used for this initialisation as static. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Suggested-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Don't open code of_device_get_match_data()Laxman Dewangan2016-04-291-26/+24
| | | | | | | | | | | Use of_device_get_match_data() for getting matched data instead of implementing this locally. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Use devm_gpiochip_add_data() for gpio registrationLaxman Dewangan2016-02-231-1/+1
| | | | | | | | Use devm_gpiochip_add_data() for GPIO registration. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com>
* gpio: convert remaining users to gpiochip_add_data()Linus Walleij2016-01-051-1/+1
| | | | | | | | For completion, sweep the floor from all gpiochip_add() usage so we can remove that function and get rid of the function wrapper gpiochip_add(). Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio-tegra: Do not create the debugfs entry by defaultSuzuki K. Poulose2015-11-171-49/+56
| | | | | | | | | | | | The tegra gpio driver creates the debugfs entry irrespective of whether the device exists or not. This is enabled on an arm64_defconfig and leaves an entry in debugfs on all platforms where it is not useful. This patch fixes the issue by creating the entry only when a device exists. Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* genirq: Remove irq argument from irq flow handlersThomas Gleixner2015-09-161-1/+1
| | | | | | | | | | | | | | Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com>
* gpio: kill off set_irq_flags usageRob Herring2015-07-281-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | set_irq_flags is ARM specific with custom flags which have genirq equivalents. Convert drivers to use the genirq interfaces directly, so we can kill off set_irq_flags. The translation of flags is as follows: IRQF_VALID -> !IRQ_NOREQUEST IRQF_PROBE -> !IRQ_NOPROBE IRQF_NOAUTOEN -> IRQ_NOAUTOEN For IRQs managed by an irqdomain, the irqdomain core code handles clearing and setting IRQ_NOREQUEST already, so there is no need to do this in .map() functions and we can simply remove the set_irq_flags calls. Some users also modify IRQ_NOPROBE and this has been maintained although it is not clear that is really needed as most platforms don't use probing. There appears to be a great deal of blind copy and paste of this code. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Michael Hennerich <michael.hennerich@analog.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: linux-gpio@vger.kernel.org Cc: bcm-kernel-feedback-list@broadcom.com Cc: linux-tegra@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: Use irq_desc_get_xxx() to avoid redundant lookup of irq_descJiang Liu2015-07-141-3/+1
| | | | | | | | | | | | | Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we already have a pointer to corresponding irq_desc. Preparatory patch for the removal of the 'irq' argument from irq flow handlers. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* gpio/gpio-tegra: Use irq_set_handler_locked()Thomas Gleixner2015-07-141-2/+2
| | | | | | | | | | | | | | | | Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle: Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: linux-gpio@vger.kernel.org
* Merge tag 'gpio-v4.2-1' of ↵Linus Torvalds2015-06-231-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull gpio updates from Linus Walleij: "This is the big bulk of GPIO changes queued for the v4.2 kernel series: - a big set of cleanups to the aged sysfs interface from Johan Hovold. To get these in, v4.1-rc3 was merged into the tree as the first patch in that series had to go into stable. This makes the locking much more fine-grained (get rid of the "big GPIO lock(s)" and store states in the GPIO descriptors. - rename gpiod_[g|s]et_array() to gpiod_[g|s]et_array_value() to avoid confusions. - New drivers for: * NXP LPC18xx (currently LPC1850) * NetLogic XLP * Broadcom STB SoC's * Axis ETRAXFS * Zynq Ultrascale+ (subdriver) - ACPI: * make it possible to retrieve GpioInt resources from a GPIO device using acpi_dev_gpio_irq_get() * merge some dependent I2C changes exploiting this. * support the ARM X-Gene GPIO standby driver. - make it possible for the generic GPIO driver to read back the value set registers to reflect current status. - loads of OMAP IRQ handling fixes. - incremental improvements to Kona, max732x, OMAP, MXC, RCAR, PCA953x, STP-XWAY, PCF857x, Crystalcove, TB10x. - janitorial (constification, checkpatch cleanups)" * tag 'gpio-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (71 commits) gpio: Fix checkpatch.pl issues gpio: pcf857x: handle only enabled irqs gpio / ACPI: Return -EPROBE_DEFER if the gpiochip was not found GPIO / ACPI: export acpi_gpiochip_request(free)_interrupts for module use gpio: improve error reporting on own descriptors gpio: promote own request failure to pr_err() gpio: Added support to Zynq Ultrascale+ MPSoC gpio: add ETRAXFS GPIO driver fix documentation after renaming gpiod_set_array to gpiod_set_array_value gpio: Add GPIO support for Broadcom STB SoCs gpio: xgene: add ACPI support for APM X-Gene GPIO standby driver gpio: tb10x: Drop unneeded free_irq() call gpio: crystalcove: set IRQCHIP_SKIP_SET_WAKE for the irqchip gpio: stp-xway: Use the of_property_read_u32 helper gpio: pcf857x: Check for irq_set_irq_wake() failures gpio-stp-xway: Fix enabling the highest bit of the PHY LEDs gpio: Prevent an integer overflow in the pca953x driver gpio: omap: rework omap_gpio_irq_startup to handle current pin state properly gpio: omap: rework omap_gpio_request to touch only gpio specific registers gpio: omap: rework omap_x_irq_shutdown to touch only irqs specific registers ...
| * Drivers: gpio: Fix spelling errorsColin Cronin2015-05-191-1/+1
| | | | | | | | | | | | | | | | Fixed several spelling errors in gpio-lynxpoint, gpio-pca953x, gpio-tegra, gpio-zynq, gpiolib-of, gpiolib. Signed-off-by: Colin Cronin <colinpatrickcronin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | gpio: gpio-tegra: Fix race in installing chained IRQ handlerRussell King2015-06-181-2/+2
|/ | | | | | | | | | | | | | | | | Fix a race where a pending interrupt could be received and the handler called before the handler's data has been setup, by converting to irq_set_chained_handler_and_data(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Lee Jones <lee.jones@linaro.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/E1Z4z0M-0002Sl-Ti@rmk-PC.arm.linux.org.uk Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds2014-12-151-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
| * gpio: drop owner assignment from platform_driversWolfram Sang2014-10-201-1/+0
| | | | | | | | | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* | gpio: rename gpio_lock_as_irq to gpiochip_lock_as_irqAlexandre Courbot2014-10-281-2/+2
|/ | | | | | | | | This function actually operates on a gpio_chip, so its prefix should reflect that fact for consistency with other functions defined in gpio/driver.h. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Make of_device_id array constJingoo Han2014-05-091-1/+1
| | | | | | | | Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: remove unnecessary OOM messagesJingoo Han2014-05-091-3/+1
| | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: add missing error handling to probeStephen Warren2013-12-111-1/+6
| | | | | | | | | | The call to gpiochip_add() is not currently error-checked. Add the missing checking. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: use new gpio_lock_as_irq() APIStephen Warren2013-10-171-0/+18
| | | | | | | | | | Whenever an IRQ is claimed or freed, call gpio_lock_as_irq() or gpio_unlock_as_irq() on the associated GPIO, to prevent that GPIO from being configured in a manner incompatible with an interrupt. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* drivers/gpio: don't check resource with devm_ioremap_resourceWolfram Sang2013-05-181-5/+0
| | | | | | | | devm_ioremap_resource does sanity checks on the given resource. No need to duplicate this in the driver. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Stephen Warren <swarren@nvidia.com>
* Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds2013-05-071-6/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull GPIO changes from Grant Likely: "The usual selection of bug fixes and driver updates for GPIO. Nothing really stands out except the addition of the GRGPIO driver and some enhacements to ACPI support" I'm pulling this despite the earlier mess. Let's hope it compiles these days. * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: (46 commits) gpio: grgpio: Add irq support gpio: grgpio: Add device driver for GRGPIO cores gpiolib-acpi: introduce acpi_get_gpio_by_index() helper GPIO: gpio-generic: remove kfree() from bgpio_remove call gpio / ACPI: Handle ACPI events in accordance with the spec gpio: lpc32xx: Fix off-by-one valid range checking for bank gpio: mcp23s08: convert driver to DT gpio/omap: force restore if context loss is not detectable gpio/omap: optimise interrupt service routine gpio/omap: remove extra context restores in *_runtime_resume() gpio/omap: free irq domain in probe() failure paths gpio: gpio-generic: Add 16 and 32 bit big endian byte order support gpio: samsung: Add terminating entry for exynos_pinctrl_ids gpio: mvebu: add dbg_show function MAX7301 GPIO: Do not force SPI speed when using OF Platform gpio: gpio-tps65910.c: fix checkpatch error gpio: gpio-timberdale.c: fix checkpatch error gpio: gpio-tc3589x.c: fix checkpatch errors gpio: gpio-stp-xway.c: fix checkpatch error gpio: gpio-sch.c: fix checkpatch error ...
| * gpio/tegra: assume CONFIG_OFStephen Warren2013-03-041-6/+5
| | | | | | | | | | | | | | | | Tegra only supports, and always enables, device tree. Remove all ifdefs and runtime checks for DT support from the driver. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | Merge branch 'gic/cleanup' into next/socOlof Johansson2013-04-291-2/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge in the gic cleanup since it has a handful of annoying internal conflicts with soc development branches. All of them are delete/delete conflicts. * gic/cleanup: irqchip: vic: add include of linux/irq.h irqchip: gic: Perform the gic_secondary_init() call via CPU notifier irqchip: gic: Call handle_bad_irq() directly arm: Move chained_irq_(enter|exit) to a generic file arm: Move the set_handle_irq and handle_arch_irq declarations to asm/irq.h Signed-off-by: Olof Johansson <olof@lixom.net> Conflicts: arch/arm/mach-shmobile/smp-emev2.c arch/arm/mach-shmobile/smp-r8a7779.c arch/arm/mach-shmobile/smp-sh73a0.c arch/arm/mach-socfpga/platsmp.c
| * | arm: Move chained_irq_(enter|exit) to a generic fileCatalin Marinas2013-03-261-2/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | These functions have been introduced by commit 10a8c383 (irq: introduce entry and exit functions for chained handlers) in asm/mach/irq.h. This patch moves them to linux/irqchip/chained_irq.h so that generic irqchip drivers do not rely on architecture specific header files. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Rob Herring <rob.herring@calxeda.com>
* / gpio: tegra: add gpio wakeup source handlingJoseph Lo2013-04-031-2/+19
|/ | | | | | | | | | | | | | | | This patch add the gpio wakeup source handling for the Tegra platform. It was be done by enabling the irq for the gpio in the gpio controller and enabling the bank irq of the gpio in the Tegra legacy irq controller when the system going to suspend. Based on the work by: Varun Wadekar <vwadekar@nvidia.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Joseph Lo <josephl@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-13 20:07:31 +0100