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| * | | gpio: mvebu: checkpatch: block comment fixesRalph Sennhauser2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix issues in block comments reported by checkpatch. Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: acpi: Ignore -EPROBE_DEFER for unselected gpiointsHans de Goede2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When acpi_dev_gpio_irq_get gets called with an index of say 2, it should not care if acpi_get_gpiod for index 0 or 1 returns -EPROBE_DEFER. This allows drivers which request a gpioint with index > 0 to function if there is no gpiochip driver (loaded) for gpioints with a lower index. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: of: Don't return 0 on dt_gpio_count()Andy Shevchenko2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's unusual to have error checking like (ret <= 0) in cases when counting GPIO resources. In case when it's mandatory we propagate the error (-ENOENT), otherwise we don't use the result. This makes consistent behaviour across all possible variants called in gpiod_count(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: acpi: Don't return 0 on acpi_gpio_count()Andy Shevchenko2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's unusual to have error checking like (ret <= 0) in cases when counting GPIO resources. In case when it's mandatory we propagate the error (-ENOENT), otherwise we don't use the result. This makes consistent behaviour across all possible variants called in gpiod_count(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: xlp: Update for ARCH_THUNDER2Jayachandran C2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ARCH_VULCAN arm64 platform (for Broadcom Vulcan ARM64 processors) has been discontinued. Cavium's ThunderX2 CN99XX (ARCH_THUNDER2) will be the next revision of this platform. Update compile dependencies and ACPI ID to reflect this change. Signed-off-by: Jayachandran C <jnair@caviumnetworks.com> [Drop depreciation of ARCH_VULCAN] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: zx: make use of raw_spinlock variantsJulia Cartwright2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The zx gpio driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by: Julia Cartwright <julia@ni.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: ws16c48: make use of raw_spinlock variantsJulia Cartwright2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ws16c48 gpio driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by: Julia Cartwright <julia@ni.com> Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: pl061: make use of raw_spinlock variantsJulia Cartwright2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pl061 gpio driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by: Julia Cartwright <julia@ni.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: etraxfs: make use of raw_spinlock variantsJulia Cartwright2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The etraxfs gpio driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by: Julia Cartwright <julia@ni.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: ath79: make use of raw_spinlock variantsJulia Cartwright2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ath79 gpio driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by: Julia Cartwright <julia@ni.com> Acked-by: Aban Bedel <albeu@free.fr> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: bcm-kona: make use of raw_spinlock variantsJulia Cartwright2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bcm-kona gpio driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by: Julia Cartwright <julia@ni.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: 104-dio-48e: make use of raw_spinlock variantsJulia Cartwright2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 104-dio-48e gpio driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by: Julia Cartwright <julia@ni.com> Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: altera: make use of raw_spinlock variantsJulia Cartwright2017-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The altera gpio driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by: Julia Cartwright <julia@ni.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: pc104: Mask PC/104 drivers via PC104 Kconfig optionWilliam Breathitt Gray2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PC/104 drivers should be hidden on machines which do not support PC/104 devices. This patch adds the PC104 Kconfig option as a dependency for the relevant PC/104 device driver Kconfig options. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: sta2x11: use resource management for irqsBartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use device resource managed variants of irq_alloc_descs() and request_irq() and remove the code manually freeing irq resources. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: mxs: use devm_irq_alloc_descs()Bartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver never frees the interrupt descriptors it allocates. Fix it by using the resource managed version of irq_alloc_descs(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: mxc: use devm_irq_alloc_descs()Bartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver never frees the interrupt descriptors it allocates. Fix it by using the resource managed version of irq_alloc_descs(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: sodaville: use resource management for irqsBartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use device resource managed variants of irq_alloc_descs() and request_irq() and remove the code manually freeing irq resources. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: davinci: use devm_irq_alloc_descs()Bartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver never frees the interrupt descriptors it allocates. Fix it by using the resource managed version of irq_alloc_descs(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: pxa: use devm_irq_alloc_descs()Bartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver never frees the interrupt descriptors it allocates. Fix it by using the resource managed version of irq_alloc_descs(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: xlp: use resource management for irqsBartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the resource managed variant of irq_alloc_descs() and remove the code manually freeing allocated interrupt descriptors. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: ml-ioh: use resource management for irqsBartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use device resource managed variants of irq_alloc_descs() and request_irq() and remove the code manually freeing irq resources. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: pch: use resource management for irqsBartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use device resource managed variants of irq_alloc_descs() and request_irq() and remove the code manually freeing irq resources. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: omap: use devm_irq_alloc_descs()Bartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver never frees the allocated interrupt descriptors. Fix it by using a resource managed variant of irq_alloc_descs(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: twl4030: use devm_irq_alloc_descs()Bartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver never frees the irq descriptors it allocates. Fix it by using a resource managed variant of irq_alloc_descs(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: mockup: use devm_irq_alloc_descs()Bartosz Golaszewski2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the resource managed variant of irq_alloc_descs(). This allows us to remove gpio_mockup_remove(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: exar: Set proper output level in exar_direction_outputAxel Lin2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current code does not set output level in exar_direction_output, fix it. Also move the direction_output/direction_input code block to avoid forward declaration for exar_set_value(). Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: acpi: Add managed variant of acpi_dev_add_driver_gpios()Andy Shevchenko2017-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce device managed variant of acpi_dev_add_driver_gpios() and its counterpart acpi_dev_remove_driver_gpios(). The functions in most cases are used in driver's ->probe() and ->remove() callbacks, that's why it's useful to have managed variant of them. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpiolib: Fix spelling of 'successful'Andy Shevchenko2017-03-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove extra 'l' in "successfull". Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | gpio: dwapb: Add support for next generation of X-Gene SoCHoan Tran2017-03-06
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Next generation of X-Gene SoC's GPIO hardware register map is very similar to DW GPIO. It only differs by a few register addresses. This patch modifies DW GPIO driver to accommodate the difference in a few register addresses. Signed-off-by: Hoan Tran <hotran@apm.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | | Merge tag 'mfd-next-4.12' of ↵Linus Torvalds2017-05-03
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Freescale MXS Low Resolution ADC - Freescale i.MX23/i.MX28 LRADC touchscreen - Motorola CPCAP Power Button - TI LMU (Lighting Management Unit) - Atmel SMC (Static Memory Controller) New Device Support: - Add support for X-Powers AXP803 to axp20x - Add support for Dialog Semi DA9061 to da9062-core - Add support for Intel Cougar Mountain to lpc_ich - Add support for Intel Gemini Lake to lpc_ich New Functionality: - Add Device Tree support; wm831x-*, axp20x, ti-lmu, da9062, sun4i-gpadc - Add IRQ sense support; motorola-cpcap - Add ACPI support; cros_ec - Add Reset support; altera-a10sr - Add ADC support; axp20x - Add AC Power support; axp20x - Add Runtime PM support; atmel-ebi, exynos-lpass - Add Battery Power Supply support; axp20x - Add Clock support; exynos-lpass, hi655x-pmic Fix-ups: - Implicitly specify required headers; motorola-cpcap, intel_soc_pmic_bxtwc - Add .remove() method; stm32-timers, exynos-lpass - Remove unused code; intel_soc_pmic_core, intel-lpss-acpi, ipaq-micro, atmel-smc, menelaus - Rename variables for clarity; axp20x - Convert pr_warning() to pr_warn(); db8500-prcmu, sta2x11-mfd, twl4030-power - Improve formatting; arizona-core, axp20x - Use raw_spinlock_*() variants; asic3, t7l66xb, tc6393xb - Simplify/refactor code; arizona-core, atmel-ebi - Improve error checking; intel_soc_pmic_core Bug Fixes: - Ensure OMAP3630/3730 boards can successfully reboot; twl4030-power - Correct max-register value; stm32-timers - Extend timeout to account for clock stretching; cros_ec_spi - Use correct IRQ trigger type; motorola-cpcap - Fix bad use of IRQ sense register; motorola-cpcap - Logic error "||" should be "&&"; mxs-lradc-ts" * tag 'mfd-next-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (79 commits) input: touchscreen: mxs-lradc: || vs && typos dt-bindings: Add AXP803's regulator info mfd: axp20x: Support AXP803 variant dt-bindings: Add device tree binding for X-Powers AXP803 PMIC dt-bindings: Make AXP20X compatible strings one per line mfd: intel_soc_pmic_core: Fix unchecked return value mfd: menelaus: Remove obsolete local_irq_disable() and local_irq_enable() mfd: omap-usb-tll: Configure ULPIAUTOIDLE mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode mfd: palmas: Fixed spelling mistake in error message mfd: lpc_ich: Add support for Intel Gemini Lake SoC mfd: hi655x: Add the clock cell to provide WiFi and Bluetooth mfd: intel_soc_pmic: Fix a mess with compilation units mfd: exynos-lpass: Add runtime PM support mfd: exynos-lpass: Add missing remove() function mfd: exynos-lpass: Add support for clocks mfd: exynos-lpass: Remove pad retention control iio: adc: add support for X-Powers AXP20X and AXP22X PMICs ADCs mfd: cpcap: Fix bad use of IRQ sense register mfd: cpcap: Use ack_invert interrupts ...
| * | | mfd: intel_soc_pmic: Fix a mess with compilation unitsAndy Shevchenko2017-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Crystal Cove and Whiskey Cove are two different PMICs which are installed on Intel Atom SoC based platforms. Moreover there are two independent drivers that by some reason were supposed (*) to get into one kernel module. Fix the mess by clarifying Kconfig option for Crystal Cove and split Whiskey Cove out of it. (*) It looks like the configuration was never tested with INTEL_SOC_PMIC=n. The line in Makefile is actually wrong. Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> (supporter:ACPI) Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
| * | | gpio: wm831x: Add basic device tree supportCharles Keepax2017-03-23
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | Now the wm831x-core has basic DT support we can update this driver to allow use of the GPIOs within a device tree system. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* | | ACPI / gpio: do not fall back to parsing _CRS when we get a deferralDmitry Torokhov2017-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If, while locating GPIOs by name, we get probe deferral, we should immediately report it to caller rather than trying to fall back to parsing unnamed GPIOs from _CRS block. Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-and-Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | | gpio: acpi: Call enable_irq_wake for _IAE GpioInts with Wake setHans de Goede2017-03-30
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Bay Trail / Cherry Trail systems with a LID switch, the LID switch is often connect to a gpioint handled by an _IAE event handler. Before this commit such systems would not wake up when opening the lid, requiring the powerbutton to be pressed after opening the lid to wakeup. Note that Bay Trail / Cherry Trail systems use suspend-to-idle, so the interrupts are generated anyway on those lines on lid switch changes, but they are treated by the IRQ subsystem as spurious while suspended if not marked as wakeup IRQs. This commit calls enable_irq_wake() for _IAE GpioInts with a valid event handler which have their Wake flag set. This fixes such systems not waking up when opening the lid. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-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:mcp23s08 Fixed missing interruptsRobert Middleton2017-03-17
| | | | | | | | | | | | | | | | | | | | | | | | | | When an interrupt occurs on an MCP23S08 chip, the INTF register will only contain one bit as causing the interrupt. If more than two pins change at the same time on the chip, this causes one of the pins to not be reported. This patch fixes the logic for checking if a pin has changed, so that multiple pins will always cause more than one change. Cc: stable@vger.kernel.org Signed-off-by: Robert Middleton <robert.middleton@rm5248.com> Tested-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | gpio: altera: Use handle_level_irq when configured as a level_highPhil Reid2017-03-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a threaded irq handler is chained attached to one of the gpio pins when configure for level irq the altera_gpio_irq_leveL_high_handler does not mask the interrupt while being handled by the chained irq. This resulting in the threaded irq not getting enough cycles to complete quickly enough before the irq was disabled as faulty. handle_level_irq should be used in this situation instead of handle_simple_irq. In gpiochip_irqchip_add set default handler to handle_bad_irq as per Documentation/gpio/driver.txt. Then set the correct handler in the set_type callback. Signed-off-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | gpio: xgene: mark PM functions as __maybe_unusedArnd Bergmann2017-03-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When CONFIG_PM_SLEEP is disabled, we get a warning about unused functions: drivers/gpio/gpio-xgene.c:155:12: warning: 'xgene_gpio_resume' defined but not used [-Wunused-function] static int xgene_gpio_resume(struct device *dev) ^~~~~~~~~~~~~~~~~ drivers/gpio/gpio-xgene.c:142:12: warning: 'xgene_gpio_suspend' defined but not used [-Wunused-function] static int xgene_gpio_suspend(struct device *dev) The warnings are harmless and can be avoided by simplifying the code and marking the functions as __maybe_unused. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | gpio: mockup: return -EFAULT if copy_from_user() failsDan Carpenter2017-03-06
| | | | | | | | | | | | | | | | | | | | copy_from_user() returns the number of bytes remaining to be copied but we want to return negative error codes on failue. Fixes: 9202ba2397d1 ("gpio: mockup: implement event injecting over debugfs") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | gpio: altera-a10sr: Set gpio_chip parent propertyThor Thayer2017-03-06
|/ | | | | | | | Set the gpio_chip parent property since some recent functions such as devprop_gpiochip_set_names() can use it. Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* Merge tag 'gpio-v4.11-1' of ↵Linus Torvalds2017-02-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 v4.11 cycle Core changes: - Augment fwnode_get_named_gpiod() to configure the GPIO pin immediately after requesting it like all other APIs do. This is a treewide change also updating all users. - Pass a GPIO label down to gpiod_request() from fwnode_get_named_gpiod(). This makes debugfs and the userspace ABI correctly reflect the current in-kernel consumer of a pin taken using this abstraction. This is a treewide change also updating all users. - Rename devm_get_gpiod_from_child() to devm_fwnode_get_gpiod_from_child() to reflect the fact that this function is operating on a fwnode object. This is a treewide change also updating all users. - Make it possible to take multiple GPIOs in a single hog of device tree hogs. - The refactorings switching GPIO chips to use the .set_config() callback using standard pin control properties and providing a backend into the pin control subsystem that were also merged into the pin control tree naturally appear here too. Testing instrumentation: - A whole slew of cleanups and improvements to the mockup GPIO driver. We now have an extended userspace test exercising the subsystem, and we can inject interrupts etc from userspace to fully test the core GPIO functionality. New drivers: - New driver for the Cortina Systems Gemini GPIO controller. - New driver for the Exar XR17V352/354/358 chips. - New driver for the ACCES PCI-IDIO-16 PCI GPIO card. Driver changes: - RCAR: set the irqchip parent device, add fine-grained runtime PM support. - pca953x: support optional RESET control line on the chip. - DaVinci: cleanups and simplifications. Add support for multiple instances. - .set_multiple() and naming of lines on more or less all of the ISA/PCI GPIO controllers. - mcp23s08: refactored to use regmap as a first step to further rewrites and modernizations" * tag 'gpio-v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (61 commits) gpio: reintroduce devm_get_gpiod_from_child() gpio: pci-idio-16: Fix PCI BAR index gpio: pci-idio-16: Fix PCI device ID code gpio: mockup: implement event injecting over debugfs gpio: mockup: add a dummy irqchip gpio: mockup: implement naming the lines gpio: mockup: code shrink gpio: mockup: readability tweaks gpio: Add GPIO support for the ACCES PCI-IDIO-16 gpio: Add the devm_fwnode_get_index_gpiod_from_child() helper gpio: Rename devm_get_gpiod_from_child() gpio: mcp23s08: Select REGMAP/REGMAP_I2C to fix build error gpio: ws16c48: Add support for GPIO names gpio: gpio-mm: Add support for GPIO names gpio: 104-idio-16: Add support for GPIO names gpio: 104-idi-48: Add support for GPIO names gpio: 104-dio-48e: Add support for GPIO names gpio: ws16c48: Remove unnecessary driver_data set gpio: gpio-mm: Remove unnecessary driver_data set gpio: 104-idio-16: Remove unnecessary driver_data set ...
| * gpio: pci-idio-16: Fix PCI BAR indexWilliam Breathitt Gray2017-02-13
| | | | | | | | | | | | | | | | | | | | | | The PCI BAR0 and BAR1 for the PCI-IDIO-16 hold information for the PLX 9052 bridge chip on the device. The PCI BAR2 holds the necessary base address for I/O control of the PCI-IDIO-16. This patch corrects the PCI BAR index mismatch for the PCI-IDIO-16 GPIO driver. Fixes: 02e74fc0401a ("gpio: Add GPIO support for the ACCES PCI-IDIO-16") Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: pci-idio-16: Fix PCI device ID codeWilliam Breathitt Gray2017-02-13
| | | | | | | | | | | | | | | | | | | | The ACCES PCI-IDIO-16 has a PCI device ID code of 0x0DC8. It is incorrect to use the PCI device ID code of the ACCES PCI-IIRO-8 (0x0F00). This patch fixes the said PCI device ID code mismatch. Fixes: 02e74fc0401a ("gpio: Add GPIO support for the ACCES PCI-IDIO-16") Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: mockup: implement event injecting over debugfsBartosz Golaszewski2017-02-13
| | | | | | | | | | | | | | | | | | Create a debugfs directory for every mockup chip and a single file for every line. Writing (0 or 1) to these files allows the user to inject line events (falling or rising edge respectively). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: mockup: add a dummy irqchipBartosz Golaszewski2017-02-13
| | | | | | | | | | | | | | | | Setup a dummy irqchip that will allow us to inject line events for testing purposes. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: mockup: implement naming the linesBartosz Golaszewski2017-02-06
| | | | | | | | | | | | | | | | | | | | In order to allow testing line lookup by name from user space, add a new boolean parameter that indicates whether we want the lines to be named. The name is created by concatenating the chip name and the line offset value. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: mockup: code shrinkBartosz Golaszewski2017-02-06
| | | | | | | | | | | | | | | | Moving a couple of lines around allows us to shrink the code a bit while keeping the same functionality. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: mockup: readability tweaksBartosz Golaszewski2017-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following patch tries to improve the readability of the mockup driver. The driver is called gpio-mockup, so add the same prefix to all functions and structures. Add some newlines and use a temporary pointer in gpio_mockup_add(). Drop the name of the direction enum and rename the enum values to better reflect their purpose. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: Add GPIO support for the ACCES PCI-IDIO-16William Breathitt Gray2017-02-06
| | | | | | | | | | | | | | | | | | | | | | | | The ACCES PCI-IDIO-16 device provides 32 lines of digital I/O (16 lines of optically-isolated digital inputs for AC and DC control signals, and 16 lines of solid state switch digital outputs). An interrupt is generated when any of the inputs change state (low to high or high to low). Input filter control is not supported by this driver, and input filters are deactivated by this driver. Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * Merge branch 'ib-gpiod-flags' into develLinus Walleij2017-02-05
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