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* Merge tag 'gpio-v5.5-2' of ↵Linus Torvalds2019-12-278-28/+34
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: "A set of fixes for the v5.5 series: - Fix the build for the Xtensa driver. - Make sure to set up the parent device for mpc8xxx. - Clarify the look-up error message. - Fix the usage of the line direction in the mockup device. - Fix a type warning on the Aspeed driver. - Remove the pointless __exit annotation on the xgs-iproc which is causing a compilation problem. - Fix up emultation of open drain outputs .get_direction() - Fix the IRQ callbacks on the PCA953xx to use bitops and work properly. - Fix the Kconfig on the Tegra driver" * tag 'gpio-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: tegra186: Allow building on Tegra194-only configurations gpio: pca953x: Switch to bitops in IRQ callbacks gpiolib: fix up emulated open drain outputs MAINTAINERS: Append missed file to the database gpio: xgs-iproc: remove __exit annotation for iproc_gpio_remove gpio: aspeed: avoid return type warning gpio: mockup: Fix usage of new GPIO_LINE_DIRECTION gpio: Fix error message on out-of-range GPIO in lookup table gpio: mpc8xxx: Add platform device to gpiochip->parent gpio: xtensa: fix driver build
| * gpio: tegra186: Allow building on Tegra194-only configurationsThierry Reding2019-12-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver is compatible with both Tegra186 and Tegra194, but currently it cannot be selected if only Tegra194 support is enabled. Allow builds with only Tegra194 support enabled to select this driver. While at it, select this driver by default on Tegra194 builds because it is an essential part of the system. Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20191213130034.219227-1-thierry.reding@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * Merge tag 'gpio-v5.5-rc2-fixes-for-linus' of ↵Linus Walleij2019-12-136-24/+28
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into fixes gpio fixes for v5.5-rc2 - fix gpio-xtensa build failure - fix a regression in gpio-mockup - fix a gcc warning in gpio-aspeed - fix a section mismatch problem in xgs-iproc - fix a problem with emulated open-drain outputs in gpiolib core - switch to bitops in gpio-pca953x after converting the driver to using bitmap - add a missed file to MAINTAINERS entry
| | * gpio: pca953x: Switch to bitops in IRQ callbacksAndy Shevchenko2019-12-111-16/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we have driver converted to use bitmap API we must use traditional bit operations (set_bit(), clear_bit(), etc.) against it. Currently IRQ callbacks are missed in the conversion and thus broken. Let's fix it right here right now. Fixes: 35d13d94893f ("gpio: pca953x: convert to use bitmap API") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
| | * gpiolib: fix up emulated open drain outputsRussell King2019-12-111-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gpiolib has a corner case with open drain outputs that are emulated. When such outputs are outputting a logic 1, emulation will set the hardware to input mode, which will cause gpiod_get_direction() to report that it is in input mode. This is different from the behaviour with a true open-drain output. Unify the semantics here. Cc: <stable@vger.kernel.org> Suggested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
| | * gpio: xgs-iproc: remove __exit annotation for iproc_gpio_removeArnd Bergmann2019-12-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When built into the kernel, the driver causes a link problem: `iproc_gpio_remove' referenced in section `.data' of drivers/gpio/gpio-xgs-iproc.o: defined in discarded section `.exit.text' of drivers/gpio/gpio-xgs-iproc.o Remove the incorrect annotation. Fixes: 6a41b6c5fc20 ("gpio: Add xgs-iproc driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
| | * gpio: aspeed: avoid return type warningArnd Bergmann2019-12-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gcc has a hard time tracking whether BUG_ON(1) ends execution or not: drivers/gpio/gpio-aspeed-sgpio.c: In function 'bank_reg': drivers/gpio/gpio-aspeed-sgpio.c:112:1: error: control reaches end of non-void function [-Werror=return-type] Use the simpler BUG() that gcc knows cannot continue. Fixes: f8b410e3695a ("gpio: aspeed-sgpio: Rename and add Kconfig/Makefile") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
| | * gpio: mockup: Fix usage of new GPIO_LINE_DIRECTIONKent Gibson2019-12-111-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | Restore the external behavior of gpio-mockup to what it was prior to the change to using GPIO_LINE_DIRECTION. Fixes: e42615ec233b ("gpio: Use new GPIO_LINE_DIRECTION") Signed-off-by: Kent Gibson <warthog618@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
| | * gpio: xtensa: fix driver buildMax Filippov2019-12-091-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit cad6fade6e78 ("xtensa: clean up WSR*/RSR*/get_sr/set_sr") removed {RSR,WSR}_CPENABLE from xtensa code, but did not fix up all users, breaking gpio-xtensa driver build. Update gpio-xtensa to use new xtensa_{get,set}_sr API. Cc: stable@vger.kernel.org # v5.0+ Fixes: cad6fade6e78 ("xtensa: clean up WSR*/RSR*/get_sr/set_sr") Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
| * | gpio: Fix error message on out-of-range GPIO in lookup tableGeert Uytterhoeven2019-12-091-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a GPIO offset in a lookup table is out-of-range, the printed error message (1) does not include the actual out-of-range value, and (2) contains an off-by-one error in the upper bound. Avoid user confusion by also printing the actual GPIO offset, and correcting the upper bound of the range. While at it, use "%u" for unsigned int. Sample impact: -requested GPIO 0 is out of range [0..32] for chip e6052000.gpio +requested GPIO 0 (45) is out of range [0..31] for chip e6052000.gpio Fixes: 2a3cf6a3599e9015 ("gpiolib: return -ENOENT if no GPIO mapping exists") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20191127095919.4214-1-geert+renesas@glider.be Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: mpc8xxx: Add platform device to gpiochip->parentJohnson CH Chen (陳昭勳)2019-12-091-0/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | Dear Linus Walleij, In old kernels, some APIs still try to use parent->of_node from struct gpio_chip, and it could be resulted in kernel panic because parent is NULL. Adding platform device to gpiochip->parent can fix this problem. Signed-off-by: Johnson Chen <johnsonch.chen@moxa.com> Link: https://patchwork.kernel.org/patch/11234609 Link: https://lore.kernel.org/r/HK0PR01MB3521489269F76467DFD7843FFA450@HK0PR01MB3521.apcprd01.prod.exchangelabs.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | Merge tag 'spi-fix-v5.5-rc2' of ↵Linus Torvalds2019-12-171-0/+27
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "A relatively large set of fixes here, the biggest part of it is for fallout from the GPIO descriptor rework that affected several of the devices with usable native chip select support. There's also some new PCI IDs for Intel Jasper Lake devices. The conversion to platform_get_irq() in the fsl driver is an incremental fix for build errors introduced on SPARC by the earlier fix for error handling in probe in that driver" * tag 'spi-fix-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: fsl: use platform_get_irq() instead of of_irq_to_resource() spi: nxp-fspi: Ensure width is respected in spi-mem operations spi: spi-ti-qspi: Fix a bug when accessing non default CS spi: fsl: don't map irq during probe spi: spi-cavium-thunderx: Add missing pci_release_regions() spi: sprd: Fix the incorrect SPI register gpiolib: of: Make of_gpio_spi_cs_get_count static spi: fsl: Handle the single hardwired chipselect case gpio: Handle counting of Freescale chipselects spi: fsl: Fix GPIO descriptor support spi: dw: Correct handling of native chipselect spi: cadence: Correct handling of native chipselect spi: pxa2xx: Add support for Intel Jasper Lake
| * gpiolib: of: Make of_gpio_spi_cs_get_count staticYueHaibing2019-12-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Fix sparse warning: drivers/gpio/gpiolib-of.c:35:5: warning: symbol 'of_gpio_spi_cs_get_count' was not declared. Should it be static? Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20191130012828.14504-1-yuehaibing@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
| * gpio: Handle counting of Freescale chipselectsLinus Walleij2019-11-281-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have a special quirk to handle the Freescale nonstandard SPI chipselect GPIOs in the gpiolib-of.c file, but it currently only handles the case where the GPIOs are actually requested (gpiod_*get()). We also need to handle that the SPI core attempts to count the GPIOs before use, and that needs a similar quirk in the OF part of the library. Cc: Christophe Leroy <christophe.leroy@c-s.fr> Reported-by: Christophe Leroy <christophe.leroy@c-s.fr> Fixes: 0f0581b24bd0 ("spi: fsl: Convert to use CS GPIO descriptors") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Christophe Leroy <christophe.leroy@c-s.fr> Link: https://lore.kernel.org/r/20191128083718.39177-2-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
* | gpio: pca953x: tighten up indentationAndy Shevchenko2019-12-041-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to split some of the lines. However, improve the style of multi-line comment. On top of this there is no need to have double space. Correct above indentation issues without altering the functionality. Link: http://lkml.kernel.org/r/20191022172922.61232-12-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: Yury Norov <yury.norov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: pca953x: convert to use bitmap APIAndy Shevchenko2019-12-041-94/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of customized approach convert the driver to use bitmap API. [andriy.shevchenko@linux.intel.com: reduce stack usage in couple of functions] Link: http://lkml.kernel.org/r/20191023153056.64262-1-andriy.shevchenko@linux.intel.com Link: http://lkml.kernel.org/r/20191022172922.61232-11-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Yury Norov <yury.norov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: pca953x: use input from regs structure in pca953x_irq_pending()Andy Shevchenko2019-12-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While PCA_PCAL is defined for PCA953X type only, we still may use an offset of the input from regs structure for sake of consistency. Link: http://lkml.kernel.org/r/20191022172922.61232-10-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: Yury Norov <yury.norov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: pca953x: remove redundant variable and check in IRQ handlerAndy Shevchenko2019-12-041-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We always will have at least one iteration of the loop due to pending being guaranteed to be non-zero. That is, we may remove extra variable and check in the IRQ handler. Link: http://lkml.kernel.org/r/20191022172922.61232-9-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: Yury Norov <yury.norov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: pca953x: utilize the for_each_set_clump8 macroWilliam Breathitt Gray2019-12-041-10/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace verbose implementation in set_multiple callback with for_each_set_clump8 macro to simplify code and improve clarity. Link: http://lkml.kernel.org/r/3543ffc3668ad4ed4c00e8ebaf14a5559fd6ddf2.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Phil Reid <preid@electromag.com.au> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Lukas Wunner <lukas@wunner.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Morten Hein Tiljeset <morten.tiljeset@prevas.dk> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: max3191x: utilize the for_each_set_clump8 macroWilliam Breathitt Gray2019-12-041-9/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace verbose implementation in get_multiple callback with for_each_set_clump8 macro to simplify code and improve clarity. Link: http://lkml.kernel.org/r/c2b1ed62caf6fce6e5681809a50c05ce6acdf2a6.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Lukas Wunner <lukas@wunner.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Morten Hein Tiljeset <morten.tiljeset@prevas.dk> Cc: Phil Reid <preid@electromag.com.au> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: pisosr: utilize the for_each_set_clump8 macroWilliam Breathitt Gray2019-12-041-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace verbose implementation in get_multiple callback with for_each_set_clump8 macro to simplify code and improve clarity. Link: http://lkml.kernel.org/r/8a39ee772247d4b7d752b32dbacc06c1cdcb60b5.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Morten Hein Tiljeset <morten.tiljeset@prevas.dk> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Lukas Wunner <lukas@wunner.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Phil Reid <preid@electromag.com.au> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: 74x164: utilize the for_each_set_clump8 macroWilliam Breathitt Gray2019-12-041-10/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace verbose implementation in set_multiple callback with for_each_set_clump8 macro to simplify code and improve clarity. Link: http://lkml.kernel.org/r/7ea2df7182a50a1136ca36edc46dffcb2446fd27.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Phil Reid <preid@electromag.com.au> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Lukas Wunner <lukas@wunner.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Morten Hein Tiljeset <morten.tiljeset@prevas.dk> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: uniphier: utilize for_each_set_clump8 macroWilliam Breathitt Gray2019-12-041-10/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace verbose implementation in set_multiple callback with for_each_set_clump8 macro to simplify code and improve clarity. An improvement in this case is that banks that are not masked will now be skipped. Link: http://lkml.kernel.org/r/5b24887e97f3093e4832d7c50a1093f537e91ab4.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Lukas Wunner <lukas@wunner.de> Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Morten Hein Tiljeset <morten.tiljeset@prevas.dk> Cc: Phil Reid <preid@electromag.com.au> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: pcie-idio-24: utilize for_each_set_clump8 macroWilliam Breathitt Gray2019-12-041-69/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace verbose implementation in get_multiple/set_multiple callbacks with for_each_set_clump8 macro to simplify code and improve clarity. Link: http://lkml.kernel.org/r/d5d22fa9809dcf8330f4381dbe7e7ca37990e79f.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Lukas Wunner <lukas@wunner.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Morten Hein Tiljeset <morten.tiljeset@prevas.dk> Cc: Phil Reid <preid@electromag.com.au> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: pci-idio-16: utilize for_each_set_clump8 macroWilliam Breathitt Gray2019-12-041-48/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace verbose implementation in get_multiple/set_multiple callbacks with for_each_set_clump8 macro to simplify code and improve clarity. Link: http://lkml.kernel.org/r/b30f131b4634caf5a70f12e01496f71631a17305.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Lukas Wunner <lukas@wunner.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Morten Hein Tiljeset <morten.tiljeset@prevas.dk> Cc: Phil Reid <preid@electromag.com.au> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: ws16c48: utilize for_each_set_clump8 macroWilliam Breathitt Gray2019-12-041-53/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace verbose implementation in get_multiple/set_multiple callbacks with for_each_set_clump8 macro to simplify code and improve clarity. Link: http://lkml.kernel.org/r/7a0d2c964e7f2d289b16c63ff6b06fc1f4c50d4d.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Lukas Wunner <lukas@wunner.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Morten Hein Tiljeset <morten.tiljeset@prevas.dk> Cc: Phil Reid <preid@electromag.com.au> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: gpio-mm: utilize for_each_set_clump8 macroWilliam Breathitt Gray2019-12-041-52/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace verbose implementation in get_multiple/set_multiple callbacks with for_each_set_clump8 macro to simplify code and improve clarity. Link: http://lkml.kernel.org/r/0de53d7021b2d6db10294473cd8a1b6102bcec94.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Lukas Wunner <lukas@wunner.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Morten Hein Tiljeset <morten.tiljeset@prevas.dk> Cc: Phil Reid <preid@electromag.com.au> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: 104-idi-48: utilize for_each_set_clump8 macroWilliam Breathitt Gray2019-12-041-29/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace verbose implementation in get_multiple/set_multiple callbacks with for_each_set_clump8 macro to simplify code and improve clarity. Link: http://lkml.kernel.org/r/b0631b6d489f85008480399df283ccd33ecfe310.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Lukas Wunner <lukas@wunner.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Morten Hein Tiljeset <morten.tiljeset@prevas.dk> Cc: Phil Reid <preid@electromag.com.au> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gpio: 104-dio-48e: utilize for_each_set_clump8 macroWilliam Breathitt Gray2019-12-041-52/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace verbose implementation in get_multiple/set_multiple callbacks with for_each_set_clump8 macro to simplify code and improve clarity. Link: http://lkml.kernel.org/r/08b9c9a3e75ef1ab0d172223d10a1661f2b43fe2.1570641097.git.vilhelm.gray@gmail.com Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Lukas Wunner <lukas@wunner.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Morten Hein Tiljeset <morten.tiljeset@prevas.dk> Cc: Phil Reid <preid@electromag.com.au> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge tag 'gpio-v5.5-1' of ↵Linus Torvalds2019-12-0176-566/+1664
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 v5.5 kernel cycle Core changes: - Expose pull up/down flags for the GPIO character device to userspace. After clear input from the RaspberryPi and Beagle communities, it has been established that prototyping, industrial automation and make communities strongly need this feature, and as we want people to use the character device, we have implemented the simple pull up/down interface for GPIO lines. This means we can specify that a (chip-specific) pull up/down resistor can be enabled, but does not offer fine-grained control such as cases where the resistance of the same pull resistor can be controlled (yet). - Introduce devm_fwnode_gpiod_get_index() and start to phase out the old symbol devm_fwnode_get_index_gpiod_from_child(). - A bit of documentation clean-up work. - Introduce a define for GPIO line directions and deploy it in all GPIO drivers in the drivers/gpio directory. - Add a special callback to populate pin ranges when cooperating with the pin control subsystem and registering ranges as part of adding a gpiolib driver and a gpio_irq_chip driver at the same time. This is also deployed in the Intel Merrifield driver. New drivers: - RDA Micro GPIO controller. - XGS-iproc GPIO driver. Driver improvements: - Wake event and debounce support on the Tegra 186 driver. - Finalize the Aspeed SGPIO driver. - MPC8xxx uses a normal IRQ handler rather than a chained handler" * tag 'gpio-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (64 commits) gpio: Add TODO item for regmap helper Documentation: gpio: driver.rst: Fix warnings gpio: of: Fix bogus reference to gpiod_get_count() gpiolib: Grammar s/manager/managed/ gpio: lynxpoint: Setup correct IRQ handlers MAINTAINERS: Replace my email by one @kernel.org gpiolib: acpi: Make acpi_gpiochip_alloc_event always return AE_OK gpio/mpc8xxx: fix qoriq GPIO reading gpio: mpc8xxx: Don't overwrite default irq_set_type callback gpiolib: acpi: Print pin number on acpi_gpiochip_alloc_event errors gpiolib: fix coding style in gpiod_hog() drm/bridge: ti-tfp410: switch to using fwnode_gpiod_get_index() gpio: merrifield: Pass irqchip when adding gpiochip gpio: merrifield: Add GPIO <-> pin mapping ranges via callback gpiolib: Introduce ->add_pin_ranges() callback gpio: mmio: remove untrue leftover comment gpio: em: Use platform_get_irq() to obtain interrupts gpio: tegra186: Add debounce support gpio: tegra186: Program interrupt route mapping gpio: tegra186: Derive register offsets from bank/port ...
| * | gpio: Add TODO item for regmap helperLinus Walleij2019-11-221-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | Add a TODO item for a generic MMIO regmap helper. Suggested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: of: Fix bogus reference to gpiod_get_count()Geert Uytterhoeven2019-11-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The recommended function is called gpiod_count(), not gpiod_get_count(). Fixes: f626d6dfb7098525 ("gpio: of: Break out OF-only code") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20191120154521.16273-1-geert+renesas@glider.be Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpiolib: Grammar s/manager/managed/Geert Uytterhoeven2019-11-221-1/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20191120143745.1254-1-geert+renesas@glider.be Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: lynxpoint: Setup correct IRQ handlersAndy Shevchenko2019-11-211-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When commit 75e99bf5ed8f ("gpio: lynxpoint: set default handler to be handle_bad_irq()") switched default handler to be handle_bad_irq() the lp_irq_type() function remained untouched. It means that even request_irq() can't change the handler and we are not able to handle IRQs properly anymore. Fix it by setting correct handlers in the lp_irq_type() callback. Fixes: 75e99bf5ed8f ("gpio: lynxpoint: set default handler to be handle_bad_irq()") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20191118180251.31439-1-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpiolib: acpi: Make acpi_gpiochip_alloc_event always return AE_OKHans de Goede2019-11-211-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | acpi_gpiochip_alloc_event is used to loop over all _AEI resources, if we fail to bind an event handler to one of them, that is not a reason to not try the other resources. This commit modifies acpi_gpiochip_alloc_event to always return AE_OK, so that we will always try to add an event handler for all _AEI resources. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20191114102600.34558-2-hdegoede@redhat.com Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio/mpc8xxx: fix qoriq GPIO readingRussell King2019-11-211-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | Qoriq requires the IBE register to be set to enable GPIO inputs to be read. Set it. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Link: https://lore.kernel.org/r/E1iX3HC-00069N-0T@rmk-PC.armlinux.org.uk Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpio: mpc8xxx: Don't overwrite default irq_set_type callbackVladimir Oltean2019-11-211-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The per-SoC devtype structures can contain their own callbacks that overwrite mpc8xxx_gpio_devtype_default. The clear intention is that mpc8xxx_irq_set_type is used in case the SoC does not specify a more specific callback. But what happens is that if the SoC doesn't specify one, its .irq_set_type is de-facto NULL, and this overwrites mpc8xxx_irq_set_type to a no-op. This means that the following SoCs are affected: - fsl,mpc8572-gpio - fsl,ls1028a-gpio - fsl,ls1088a-gpio On these boards, the irq_set_type does exactly nothing, and the GPIO controller keeps its GPICR register in the hardware-default state. On the LS1028A, that is ACTIVE_BOTH, which means 2 interrupts are raised even if the IRQ client requests LEVEL_HIGH. Another implication is that the IRQs are not checked (e.g. level-triggered interrupts are not rejected, although they are not supported). Fixes: 82e39b0d8566 ("gpio: mpc8xxx: handle differences between incarnations at a single place") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://lore.kernel.org/r/20191115125551.31061-1-olteanv@gmail.com Tested-by: Michael Walle <michael@walle.cc> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpiolib: acpi: Print pin number on acpi_gpiochip_alloc_event errorsHans de Goede2019-11-151-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Print pin number and error-code on acpi_gpiochip_alloc_event errors, to help debugging these. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20191114102600.34558-1-hdegoede@redhat.com Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | gpiolib: fix coding style in gpiod_hog()Bartosz Golaszewski2019-11-131-3/+3
| | | | | | | | | | | | | | | | | | | | | There should be spaces between logical operators and their operands. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | Merge tag 'intel-gpio-v5.5-1' of ↵Linus Walleij2019-11-132-30/+56
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into devel intel-gpio for v5.5-1 * Prerequisite patch against GPIO library to register pin ranges in time. * Second attempt to fix Intel Merrifield GPIO driver to utilize irqchip. The following is an automated git shortlog grouped by driver: gpiolib: - Introduce ->add_pin_ranges() callback merrifield: - Pass irqchip when adding gpiochip - Add GPIO <-> pin mapping ranges via callback
| | * | gpio: merrifield: Pass irqchip when adding gpiochipAndy Shevchenko2019-11-131-13/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to convert all old gpio irqchips to pass the irqchip setup along when adding the gpio_chip. For more info see drivers/gpio/TODO. For chained irqchips this is a pretty straight-forward conversion. Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com>
| | * | gpio: merrifield: Add GPIO <-> pin mapping ranges via callbackAndy Shevchenko2019-11-131-17/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When IRQ chip is instantiated via GPIO library flow, the few functions, in particular the ACPI event registration mechanism, on some of ACPI based platforms expect that the pin ranges are initialized to that point. Add GPIO <-> pin mapping ranges via callback in the GPIO library flow. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| | * | gpiolib: Introduce ->add_pin_ranges() callbackAndy Shevchenko2019-11-131-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When IRQ chip is being added by GPIO library, the ACPI based platform expects GPIO <-> pin mapping ranges to be initialized in order to correctly initialize ACPI event mechanism on affected platforms. Unfortunately this step is missed. Introduce ->add_pin_ranges() callback to fill the above mentioned gap. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Tested-by: Hans de Goede <hdegoede@redhat.com>
| * | | Merge tag 'gpio-v5.5-updates-for-linus-part-2' of ↵Linus Walleij2019-11-1310-213/+457
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel gpio: updates for v5.5 - add MODULE_ALIAS() for bd70528 (makes it possible to autoload the module from user-space) - use proper irc_chip names in gpio-em and gpio-rcar - expose the line bias settings to user-space in the form of new request flags - expose a new ioctl() to user-space which allows to change certain proprties of requested lines without releasing them first - various updates for gpio-tegra186: debounce support, code simplification and interrupt routing - use platform_get_irq() in gpio-em for some code shrinkage - remove leftovers after recent gpio-mmio changes
| | * | | gpio: mmio: remove untrue leftover commentMatti Vaittinen2019-11-131-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The comment should have been removed when new GPIO direction definitions were taken in use as the function logic was changed. It is now perfectly valid and Ok to hit the return from the bottom of the direction getting function. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
| | * | | gpio: em: Use platform_get_irq() to obtain interruptsGeert Uytterhoeven2019-11-131-12/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the platform_get_irq() helper instead of handling resources directly. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
| | * | | gpio: tegra186: Add debounce supportThierry Reding2019-11-121-0/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GPIO controller found on Tegra186 and later supports debouncing for inputs for up to 255 ms. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
| | * | | gpio: tegra186: Program interrupt route mappingThierry Reding2019-11-121-0/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The controls for the GG port on Tegra194 resides in the power partition of the C5 PCIe controller and its interrupt route mapping can therefore not be programmed by early boot firmware along with that of the other ports. Detect this generically by looking at which controls have already been locked down using the security registers and fill in default values for controls that are unlocked. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
| | * | | gpio: tegra186: Derive register offsets from bank/portThierry Reding2019-11-121-95/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The register offsets for a given bank and port can be easily derived from the bank and port indices. Update the port descriptors to list only the bank and port numbers to simplify this. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
| | * | | gpio: add new SET_CONFIG ioctl() to gpio chardevKent Gibson2019-11-121-0/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the GPIOHANDLE_SET_CONFIG_IOCTL to the gpio chardev. The ioctl allows some of the configuration of a requested handle to be changed without having to release the line. The primary use case is the changing of direction for bi-directional lines. Based on initial work by Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Kent Gibson <warthog618@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-14 08:30:29 +0000