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2021-09-07Merge tag 'gpio-updates-for-v5.15' of ↵Linus Torvalds17-362/+624
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio updates from Bartosz Golaszewski: "We mostly have various improvements and refactoring all over the place but also some interesting new features - like the virtio GPIO driver that allows guest VMs to use host's GPIOs. We also have a new/old GPIO driver for rockchip - this one has been split out of the pinctrl driver. Summary: - new driver: gpio-virtio allowing a guest VM running linux to access GPIO lines provided by the host - split the GPIO driver out of the rockchip pin control driver - add support for a new model to gpio-aspeed-sgpio, refactor the driver and use generic device property interfaces, improve property sanitization - add ACPI support to gpio-tegra186 - improve the code setting the line names to support multiple GPIO banks per device - constify a bunch of OF functions in the core GPIO code and make the declaration for one of the core OF functions we use consistent within its header - use software nodes in intel_quark_i2c_gpio - add support for the gpio-line-names property in gpio-mt7621 - use the standard GPIO function for setting the GPIO names in gpio-brcmstb - fix a bunch of leaks and other bugs in gpio-mpc8xxx - use generic pm callbacks in gpio-ml-ioh - improve resource management and PM handling in gpio-mlxbf2 - modernize and improve the gpio-dwapb driver - coding style improvements in gpio-rcar - documentation fixes and improvements - update the MAINTAINERS entry for gpio-zynq - minor tweaks in several drivers" * tag 'gpio-updates-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (35 commits) gpio: mpc8xxx: Use 'devm_gpiochip_add_data()' to simplify the code and avoid a leak gpio: mpc8xxx: Fix a potential double iounmap call in 'mpc8xxx_probe()' gpio: mpc8xxx: Fix a resources leak in the error handling path of 'mpc8xxx_probe()' gpio: viperboard: remove platform_set_drvdata() call in probe gpio: virtio: Add missing mailings lists in MAINTAINERS entry gpio: virtio: Fix sparse warnings gpio: remove the obsolete MX35 3DS BOARD MC9S08DZ60 GPIO functions gpio: max730x: Use the right include gpio: Add virtio-gpio driver gpio: mlxbf2: Use DEFINE_RES_MEM_NAMED() helper macro gpio: mlxbf2: Use devm_platform_ioremap_resource() gpio: mlxbf2: Drop wrong use of ACPI_PTR() gpio: mlxbf2: Convert to device PM ops gpio: dwapb: Get rid of legacy platform data mfd: intel_quark_i2c_gpio: Convert GPIO to use software nodes gpio: dwapb: Read GPIO base from gpio-base property gpio: dwapb: Unify ACPI enumeration checks in get_irq() and configure_irqs() gpiolib: Deduplicate forward declaration in the consumer.h header MAINTAINERS: update gpio-zynq.yaml reference gpio: tegra186: Add ACPI support ...
2021-08-31gpio: mpc8xxx: Use 'devm_gpiochip_add_data()' to simplify the code and avoid ↵Christophe JAILLET1-3/+1
a leak If an error occurs after a 'gpiochip_add_data()' call it must be undone by a corresponding 'gpiochip_remove()' as already done in the remove function. To simplify the code a fix a leak in the error handling path of the probe, use the managed version instead (i.e. 'devm_gpiochip_add_data()') Fixes: 698b8eeaed72 ("gpio/mpc8xxx: change irq handler from chained to normal") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-31gpio: mpc8xxx: Fix a potential double iounmap call in 'mpc8xxx_probe()'Christophe JAILLET1-7/+4
Commit 76c47d1449fc ("gpio: mpc8xxx: Add ACPI support") has switched to a managed version when dealing with 'mpc8xxx_gc->regs'. So the corresponding 'iounmap()' call in the error handling path and in the remove should be removed to avoid a double unmap. This also allows some simplification in the probe. All the error handling paths related to managed resources can be direct returns and a NULL check in what remains in the error handling path can be removed. Fixes: 76c47d1449fc ("gpio: mpc8xxx: Add ACPI support") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-31gpio: mpc8xxx: Fix a resources leak in the error handling path of ↵Christophe JAILLET1-0/+2
'mpc8xxx_probe()' Commit 698b8eeaed72 ("gpio/mpc8xxx: change irq handler from chained to normal") has introduced a new 'goto err;' at the very end of the function, but has not updated the error handling path accordingly. Add the now missing 'irq_domain_remove()' call which balances a previous 'irq_domain_create_linear() call. Fixes: 698b8eeaed72 ("gpio/mpc8xxx: change irq handler from chained to normal") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-31gpio: viperboard: remove platform_set_drvdata() call in probeAlexandru Ardelean1-11/+3
The platform_set_drvdata() call is only useful if we need to retrieve back the private information. Since the driver doesn't do that, it's not useful to have it. This change removes it. Also removing with this change is some logging about the failure to init the gpio chip data. There are other logging methods to view that this failed. Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-31gpio: virtio: Fix sparse warningsViresh Kumar1-21/+20
Fix warnings reported by sparse, related to type mismatch between u16 and __le16. Reported-by: kernel test robot <lkp@intel.com> Fixes: 3a29355a22c0 ("gpio: Add virtio-gpio driver") Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-29Merge tag 'irqchip-5.15' of ↵Thomas Gleixner46-142/+871
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core Pull irqchip updates from Marc Zyngier: - API updates: - Treewide conversion to generic_handle_domain_irq() for anything that looks like a chained interrupt controller - Update the irqdomain documentation - Use of bitmap_zalloc() throughout the tree - New functionalities: - Support for GICv3 EPPI partitions - Fixes: - Qualcomm PDC hierarchy fixes - Yet another priority decoding fix for the GICv3 pseudo-NMIs - Fix the apple-aic driver irq_eoi() callback to always unmask the interrupt - Properly handle edge interrupts on loongson-pch-pic - Let the mtk-sysirq driver advertise IRQCHIP_SKIP_SET_WAKE Link: https://lore.kernel.org/r/20210828121013.2647964-1-maz@kernel.org
2021-08-23Merge branch 'ib-rockchip' of ↵Bartosz Golaszewski3-0/+780
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl into gpio/for-next
2021-08-23gpio: remove the obsolete MX35 3DS BOARD MC9S08DZ60 GPIO functionsLukas Bulwahn3-119/+0
Commit e1324ece2af4 ("ARM: imx: Remove i.MX35 board files") removes the config MACH_MX35_3DS in arch/arm/mach-imx/Kconfig. Hence, since then, the MX35 3DS BOARD MC9S08DZ60 GPIO functions are dead code as its config GPIO_MC9S08DZ60 depends on the config MACH_MX35_3DS. Luckily, ./scripts/checkkconfigsymbols.py warns on non-existing configs: MACH_MX35_3DS Referencing files: drivers/gpio/Kconfig Remove the obsolete MX35 3DS BOARD MC9S08DZ60 GPIO functions. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-23gpio: Add virtio-gpio driverViresh Kumar3-0/+385
This patch adds a new driver for Virtio based GPIO devices. This allows a guest VM running Linux to access GPIO lines provided by the host. It supports all basic operations, except interrupts for the GPIO lines. Based on the initial work posted by: "Enrico Weigelt, metux IT consult" <lkml@metux.net>. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-18Merge remote-tracking branch 'linusw/ib-rockchip' into ↵Marc Zyngier3-0/+780
irq/generic_handle_domain_irq Merge Linus' ib-rockchip branch to avoid ugly conflicts with the generic_handle_domain_irq rework. Signed-off-by: Marc Zyngier <maz@kernel.org>
2021-08-17gpio/rockchip: drop irq_gc_lock/irq_gc_unlock for irq set typeJianqun Xu1-2/+0
There has spin lock for irq set type already, so drop irq_gc_lock and irq_gc_unlock. Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> Link: https://lore.kernel.org/r/20210816012135.1119234-1-jay.xu@rock-chips.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-08-17gpio/rockchip: support next version gpio controllerJianqun Xu1-72/+211
The next version gpio controller on SoCs like rk3568 have more write mask bits for registers. Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> Link: https://lore.kernel.org/r/20210816012123.1119179-1-jay.xu@rock-chips.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-08-17gpio/rockchip: use struct rockchip_gpio_regs for gpio controllerJianqun Xu1-39/+47
Store register offsets in the struct rockchip_gpio_regs, this patch prepare for the driver update for new gpio controller. Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> Link: https://lore.kernel.org/r/20210816012111.1119125-1-jay.xu@rock-chips.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-08-17gpio/rockchip: add driver for rockchip gpioJianqun Xu3-0/+635
This patch add support for rockchip gpio controller, which is supported in pinctrl driver in the past. With this patch, the pinctrl-rockchip driver will drop gpio related codes and populate platform driver to gpio-rockchip. Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> Link: https://lore.kernel.org/r/20210816012053.1119069-1-jay.xu@rock-chips.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-08-16gpio: mlxbf2: Use DEFINE_RES_MEM_NAMED() helper macroAndy Shevchenko1-5/+2
Use DEFINE_RES_MEM_NAMED() to save a couple of lines of code, which makes the code a bit shorter and easier to read. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Asmaa Mnebhi <asmaa@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-16gpio: mlxbf2: Use devm_platform_ioremap_resource()Andy Shevchenko1-8/+3
Simplify the platform_get_resource() and devm_ioremap_resource() calls with devm_platform_ioremap_resource(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Asmaa Mnebhi <asmaa@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-16gpio: mlxbf2: Drop wrong use of ACPI_PTR()Andy Shevchenko1-2/+2
ACPI_PTR() is more harmful than helpful. For example, in this case if CONFIG_ACPI=n, the ID table left unused which is not what we want. Instead of adding ifdeffery here and there, drop ACPI_PTR() and replace acpi.h with mod_devicetable.h. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Asmaa Mnehi <asmaa@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-16gpio: mlxbf2: Convert to device PM opsAndy Shevchenko1-15/+6
Convert driver to use modern device PM ops interface. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Asmaa Mnebhi <asmaa@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-13Merge tag 'intel-gpio-v5.15-1' of ↵Bartosz Golaszewski2-60/+45
gitolite.kernel.org:pub/scm/linux/kernel/git/andy/linux-gpio-intel into gpio/for-next intel-gpio for v5.15-1 * Rework DesignWare driver to use software nodes instead of platform data * Drop duplication of forward declaration for ACPI in consumer.h * Get rid of legacy PCI PM code in ML IOH driver The following is an automated git shortlog grouped by driver: dwapb: - Get rid of legacy platform data - Read GPIO base from gpio-base property - Unify ACPI enumeration checks in get_irq() and configure_irqs() gpiolib: - Deduplicate forward declaration in the consumer.h header mfd: - intel_quark_i2c_gpio: Convert GPIO to use software nodes ml-ioh: - Convert to dev_pm_ops
2021-08-12gpio: Bulk conversion to generic_handle_domain_irq()Marc Zyngier43-142/+91
Wherever possible, replace constructs that match either generic_handle_irq(irq_find_mapping()) or generic_handle_irq(irq_linear_revmap()) to a single call to generic_handle_domain_irq(). Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Marc Zyngier <maz@kernel.org>
2021-08-11gpio: dwapb: Get rid of legacy platform dataAndy Shevchenko1-10/+18
Platform data is a legacy interface to supply device properties to the driver. In this case we don't have anymore in-kernel users for it. Just remove it for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Serge Semin <fancer.lancer@gmail.com> Tested-by: Serge Semin <fancer.lancer@gmail.com>
2021-08-11gpio: dwapb: Read GPIO base from gpio-base propertyAndy Shevchenko1-0/+4
For backward compatibility with some legacy devices introduce a new (*) property gpio-base to read GPIO base. This will allow further cleaning up of the driver. *) Note, it's not new for the GPIO library since the mockup driver is using it already. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Serge Semin <fancer.lancer@gmail.com> Acked-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2021-08-11gpio: dwapb: Unify ACPI enumeration checks in get_irq() and configure_irqs()Andy Shevchenko1-12/+12
Shared IRQ is only enabled for ACPI enumeration, there is no need to have a special flag for that, since we simple can test if device has been enumerated by ACPI. This unifies the checks in dwapb_get_irq() and dwapb_configure_irqs(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Serge Semin <fancer.lancer@gmail.com> Tested-by: Serge Semin <fancer.lancer@gmail.com>
2021-08-05gpio: tegra186: Add ACPI supportAkhil R1-6/+24
Add ACPI module ID to probe the driver from the ACPI based bootloader firmware. Signed-off-by: Akhil R <akhilrajeev@nvidia.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-05gpiolib: of: constify few local device_node variablesKrzysztof Kozlowski1-4/+4
gpiolib does not modify struct device_node, so few local pointers can point to a const data. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-05gpiolib: constify passed device_node pointerKrzysztof Kozlowski2-5/+5
Several gpiolib functions receive pointer to struct device_node which is later passed to OF functions. These OF functions accept already pointer to const, so gpiolib can follow similar approach to indicate they are not modifying the struct device_node. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-05gpio: gpio-aspeed-sgpio: Return error if ngpios is not multiple of 8.Steven Lee1-0/+4
Add an else-if condition in the probe function to check whether ngpios is multiple of 8. Per AST datasheet, numbers of available serial GPIO pins in Serial GPIO Configuration Register must be n bytes. For instance, if n = 1, it means AST SoC supports 8 GPIO pins. Signed-off-by: Steven Lee <steven_lee@aspeedtech.com> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-05gpio: gpio-aspeed-sgpio: Use generic device property APIsSteven Lee1-2/+2
Replace all of_property_read_u32() with device_property_read_u32(). Signed-off-by: Steven Lee <steven_lee@aspeedtech.com> Acked-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-05gpio: gpio-aspeed-sgpio: Move irq_chip to aspeed-sgpio structSteven Lee1-9/+8
The current design initializes irq->chip from a global irqchip struct, which causes multiple sgpio devices use the same irq_chip. The patch moves irq_chip to aspeed_sgpio struct for initializing irq_chip from their private gpio struct. Signed-off-by: Steven Lee <steven_lee@aspeedtech.com> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-05gpio: gpio-aspeed-sgpio: Add set_config functionSteven Lee1-4/+50
AST SoC supports *retain pin state* function when wdt reset. The patch adds set_config function for handling sgpio reset tolerance register. Signed-off-by: Steven Lee <steven_lee@aspeedtech.com> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-05gpio: gpio-aspeed-sgpio: Add AST2600 sgpio supportSteven Lee1-54/+47
The maximum number of gpio pins of SoC is hardcoded as 80 and the gpio pin count mask for GPIO Configuration register is hardcode as GENMASK(9,6). However, AST2600 has 2 sgpio master interfaces, one of them supports up to 128 gpio pins and pin count mask of GPIO Configuration Register is 5 bits. The patch adds ast2600 compatibles, removes MAX_NR_HW_SGPIO and corresponding design to make the gpio input/output pin base are determined by ngpios. The patch also removed hardcoded pin mask and adds ast2400, ast2500, ast2600 platform data that include gpio pin count mask for GPIO Configuration Register. The original pin order is as follows: (suppose MAX_NR_HW_SGPIO is 80 and ngpios is 10 as well) Input: 0 1 2 3 ... 9 Output: 80 81 82 ... 89 The new pin order is as follows: Input: 0 2 4 6 ... 18 Output: 1 3 5 7 ... 19 SGPIO pin id and input/output pin mapping is as follows: SGPIO0(0,1), SGPIO1(2,3), ..., SGPIO79(158,159) For example: Access SGPIO5(10,11) Get SGPIO pin 5 (suppose sgpio chip id is 2) gpioget 2 10 Set SGPIO pin 5 (suppose sgpio chip id is 2) gpioset 2 11=1 gpioset 2 11=0 Signed-off-by: Steven Lee <steven_lee@aspeedtech.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-08-02gpio: tqmx86: really make IRQ optionalMatthias Schiffer1-3/+3
The tqmx86 MFD driver was passing IRQ 0 for "no IRQ" in the past. This causes warnings with newer kernels. Prepare the gpio-tqmx86 driver for the fixed MFD driver by handling a missing IRQ properly. Fixes: b868db94a6a7 ("gpio: tqmx86: Add GPIO from for this IO controller") Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-07-29gpio: brcmstb: remove custom 'brcmstb_gpio_set_names'Sergio Paracuellos1-44/+1
Gpiolib core code has been updated to support setting friendly names through properly 'gpio-line-names'. Instead of redefine behaviour here to skip the core to be executed, just properly assign the desired offset per bank to get in the core the expected behaviour. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Gregory Fong <gregory.0xf0@gmail.com> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-07-29gpio: mt7621: support gpio-line-names propertySergio Paracuellos1-0/+1
This driver uses multiple gpiochip banks per device. To support 'gpio-line-names' along the banks 'offset' for each bank must be set explicitly. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-07-29gpiolib: convert 'devprop_gpiochip_set_names' to support multiple gpiochip ↵Sergio Paracuellos1-5/+27
banks per device The default gpiolib-of implementation does not work with the multiple gpiochip banks per device structure used for example by the gpio-mt7621 and gpio-brcmstb drivers. To fix these kind of situations driver code is forced to fill the names to avoid the gpiolib code to set names repeated along the banks. Instead of continue with that antipattern fix the gpiolib core function to get expected behaviour for every single situation adding a field 'offset' in the gpiochip structure. Doing in this way, we can assume this offset will be zero for normal driver code where only one gpiochip bank per device is used but can be set explicitly in those drivers that really need more than one gpiochip. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Gregory Fong <gregory.0xf0@gmail.com> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-07-18Revert "gpio: mpc8xxx: change the gpio interrupt flags."Rasmus Villemoes1-1/+1
This reverts commit 3d5bfbd9716318b1ca5c38488aa69f64d38a9aa5. When booting with threadirqs, it causes a splat WARNING: CPU: 0 PID: 29 at kernel/irq/handle.c:159 __handle_irq_event_percpu+0x1ec/0x27c irq 66 handler irq_default_primary_handler+0x0/0x1c enabled interrupts That splat later went away with commit 81e2073c175b ("genirq: Disable interrupts for force threaded handlers"), which got backported to -stable. However, when running an -rt kernel, the splat still exists. Moreover, quoting Thomas Gleixner [1] But 3d5bfbd97163 ("gpio: mpc8xxx: change the gpio interrupt flags.") has nothing to do with that: "Delete the interrupt IRQF_NO_THREAD flags in order to gpio interrupts can be threaded to allow high-priority processes to preempt." This changelog is blatantly wrong. In mainline forced irq threads have always been invoked with softirqs disabled, which obviously makes them non-preemptible. So the patch didn't even do what its commit log said. [1] https://lore.kernel.org/lkml/871r8zey88.ffs@nanos.tec.linutronix.de/ Cc: stable@vger.kernel.org # v5.9+ Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-07-16gpio: rcar: Always use local variable dev in gpio_rcar_probe()Geert Uytterhoeven1-2/+2
As we have already have a pointer to the device structure in a local variable in gpio_rcar_probe(), we can just use "dev" instead of "p->dev". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-07-13gpio: ml-ioh: Convert to dev_pm_opsVaibhav Gupta1-38/+11
Convert the legacy callback .suspend() and .resume() to the generic ones. While at it, replace ifdeffery by __maybe_unused attribute. Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2021-07-05Merge tag 'mfd-next-5.14' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull mfd updates from Lee Jones: "Core Frameworks: - Fix Software Node clean-up code New Drivers: - Add support for MediaTek MT6359 PMIC - Add support for Qualcomm PM8008 PMIC - Add support for Richtek RT4831 New Device Support: - Add support for Audio CODECs to Rockchip RK817 - Add support for Alder Lake-M to Intel LPSS PCI - Add support for Periph Device Charge to ChromeOS EC New Functionality: - Provide additional IRQs for wcd934x - Add optional Reset functionality to lp87565 Fix-ups: - Namespacing & visibility fixes to lp87565 - Differentiate between Power and Home key IRQs in mt6358 - Export I2C device tables in da9052-i2c, stmpe-i2c - Adapt IRQ flags in max8907, rn5t61, max8907 - Make some functions/devices optional in axp20x, cros_ec_dev - Explicitly include used header files in ioc3 - Remove superfluous lines in MAINTAINERS, sec-core, st,stm32-timers - Resolve Kerneldoc issues in omap-usb-host, omap-usb-tll, si476x-cmd, si476x-i2c - Convert arizona-core to a module - Copyright changes in hi655x-pmic - Drop support for board file initialisation in sec-core - Trivial spelling, whitespace etc updates in lp87565, si476x-cmd, mt6360-core, wm831x-core, twl-core, db8500-prcmu - Simplify various implementations of wcd934x, mt6360-core, max8997, max8998, da9052-i2c, da9062-core, sec-core, - Device Tree binding changes in google,cros-ec, richtek,rt4831-backlight, db8500-prcmu, qcom,pm8008, qcom,spmi-pmic - Use provided APIs to simplify t7l66xb, as3722, da9055-core, tps80031, 88pm800, 88pm805, asic3, sun6i-prcm, wm831x-core, wm831x-otp, ucb1x00-assabet, timberdale, sm501, pcf50633-core, kempld-core, janz-cmodio, intel_soc_pmic_bxtwc, ab8500-core Bug Fixes: - Fix unused variable warning in rk817_codec - Fix regulator voltage configuration in rohm-bd71828 - Fix ongoing freeing of regmap_config 'name' issue in syscon - Fix error handling path in da9063-i2c - Fix Kconfig issues in MFD_MP2629 - Fix DMA mask warnings in motorola-cpcap" * tag 'mfd-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (83 commits) mfd: cros_ec: Add peripheral device charger mfd: max8907: Remove IRQF_NO_AUTOEN flag mfd: ab8500-core: Use DEVICE_ATTR_RO/RW macro mfd: intel_soc_pmic_bxtwc: Use DEVICE_ATTR_ADMIN_RW macro mfd: janz-cmodio: Use DEVICE_ATTR_RO macro mfd: kempld-core: Use DEVICE_ATTR_RO macro mfd: pcf50633: Use DEVICE_ATTR_ADMIN_RO macro mfd: sm501: Use DEVICE_ATTR_RO macro mfd: timberdale: Use DEVICE_ATTR_RO macro mfd: ucb1x00-assabet: Use DEVICE_ATTR_RO macro mfd: wm831x: Use DEVICE_ATTR_RO macro mfd: wm831x: Use DEFINE_RES_IRQ_NAMED() and DEFINE_RES_IRQ() to simplify code dt-bindings: mfd: stm32-timers: Remove #address/size cells from required properties mfd: sun6i-prcm: Use DEFINE_RES_MEM() to simplify code mfd: asic3: Use DEFINE_RES_MEM() and DEFINE_RES_IRQ() to simplify code mfd: 88pm805: Use DEFINE_RES_IRQ_NAMED() to simplify code mfd: 88pm800: Use DEFINE_RES_IRQ_NAMED() to simplify code mfd: tps80031: Use DEFINE_RES_IRQ() to simplify code mfd: da9055: Use DEFINE_RES_IRQ_NAMED() to simplify code mfd: as3722: Use DEFINE_RES_IRQ_NAMED() to simplify code ...
2021-07-05Merge tag 'gpio-updates-for-v5.14' of ↵Linus Torvalds36-549/+562
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio updates from Bartosz Golaszewski: "One new driver, support for new models in existing ones, dt-bindings conversions for several modules and improvements all over the place. Summary: - new driver for the IDT 79RC3243x GPIO controller - device tree bindings coversion to YAML for the following drivers: gpio-rk3328-grf, gpio-omap, gpio-davinci, gpio-zynq, gpio-stp, gpio-pcf857x - cleanup of probe functions in many drivers from Alexandru Ardelean, mostly dropping unnecessary calls to platform_set_drvdata() and removing error messages where none are needed (handled by the subsystem already) - several improvements to the core gpiolib and the sysfs interface code from Andy Shevchenko - conversion of the gpio-xilinx driver to using the bitmap API + improvements of suspend/resume handling + minor tweaks - convert the gpio-stmpe to using devres helpers exclusively in probe for improved robustness - updates for the generic gpio-regmap driver - updates for the gpio-dwapb driver - support for a new model in gpio-pca953x - cleanups in gpio-tegra186, gpio-104-idio-16, gpio-mxs & gpio-xgene - slight code refactoring of the gpio-zynq driver - documentation fixes from Mauro Carvalho Chehab - a bunch of minor tweaks and improvements all over the place" * tag 'gpio-updates-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (57 commits) docs: driver-api: gpio: using-gpio.rst: avoid using ReST :doc:`foo` markup dt-bindings: gpio: pcf857x: Convert to json-schema gpio: mxs: Prefer unsigned int to bare use of unsigned dt-bindings: gpio: stp: convert to json-schema dt-bindings: gpio: zynq: convert bindings to YAML dt-bindings: gpio: gpio-davinci: Convert to json-schema gpio: pca953x: Add support for the On Semi pca9655 gpio: gpio-xilinx: update on suspend and resume calls gpio: zynq: Check return value of irq_get_irq_data gpio: zynq: Check return value of pm_runtime_get_sync gpio: zynq: use module_platform_driver to simplify the code gpio: idt3243x: Fix return value check in idt_gpio_probe() MAINTAINERS: update ti,omap-gpio.yaml reference dt-bindings: gpio: Add devicetree binding for IDT 79RC32434 GPIO controller gpio: Add support for IDT 79RC3243x GPIO controller gpio: regmap: move drvdata to config data gpio-dwapb: Drop unused headers and sort the rest gpio: gpio-regmap: Use devm_add_action_or_reset() gpio: dwapb: Switch to use fwnode_irq_get() gpio: dwapb: Drop redundant check in dwapb_irq_set_type() ...
2021-06-30Merge tag 'platform-drivers-x86-v5.14-1' of ↵Linus Torvalds4-30/+72
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: "Highlights: - New think-lmi driver adding support for changing Lenovo Thinkpad BIOS settings from within Linux using the standard firmware- attributes class sysfs API - MS Surface aggregator-cdev now also supports forwarding events to user-space (for debugging / new driver development purposes only) - New intel_skl_int3472 driver this provides the necessary glue to translate ACPI table information to GPIOs, regulators, etc. for camera sensors on Intel devices with IPU3 attached MIPI cameras - A whole bunch of other fixes + device-specific quirk additions - New devm_work_autocancel() devm-helpers.h function" * tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (83 commits) platform/x86: dell-wmi-sysman: Change user experience when Admin/System Password is modified platform/x86: intel_skl_int3472: Uninitialized variable in skl_int3472_handle_gpio_resources() platform/x86: think-lmi: Move kfree(setting->possible_values) to tlmi_attr_setting_release() platform/x86: think-lmi: Split current_value to reflect only the value platform/x86: think-lmi: Fix issues with duplicate attributes platform/x86: think-lmi: Return EINVAL when kbdlang gets set to a 0 length string platform/x86: intel_cht_int33fe: Move to its own subfolder platform/x86: intel_skl_int3472: Move to intel/ subfolder platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_clock() platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_regulator() platform/x86: intel_skl_int3472: Use ACPI GPIO resource directly platform/x86: intel_skl_int3472: Fix dependencies (drop CLKDEV_LOOKUP) platform/x86: intel_skl_int3472: Free ACPI device resources after use platform/x86: Remove "default n" entries platform/x86: ISST: Use numa node id for cpu pci dev mapping platform/x86: ISST: Optimize CPU to PCI device mapping tools/power/x86/intel-speed-select: v1.10 release tools/power/x86/intel-speed-select: Fix uncore memory frequency display extcon: extcon-max8997: Simplify driver using devm extcon: extcon-max8997: Fix IRQ freeing at error path ...
2021-06-29Merge tag 'acpi-5.14-rc1' of ↵Linus Torvalds1-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These update the ACPICA code in the kernel to the 20210604 upstream revision, add preliminary support for the Platform Runtime Mechanism (PRM), address issues related to the handling of device dependencies in the ACPI device eunmeration code, improve the tracking of ACPI power resource states, improve the ACPI support for suspend-to-idle on AMD systems, continue the unification of message printing in the ACPI code, address assorted issues and clean up the code in a number of places. Specifics: - Update ACPICA code in the kernel to upstrea revision 20210604 including the following changes: - Add defines for the CXL Host Bridge Structureand and add the CFMWS structure definition to CEDT (Alison Schofield). - iASL: Finish support for the IVRS ACPI table (Bob Moore). - iASL: Add support for the SVKL table (Bob Moore). - iASL: Add full support for RGRT ACPI table (Bob Moore). - iASL: Add support for the BDAT ACPI table (Bob Moore). - iASL: add disassembler support for PRMT (Erik Kaneda). - Fix memory leak caused by _CID repair function (Erik Kaneda). - Add support for PlatformRtMechanism OpRegion (Erik Kaneda). - Add PRMT module header to facilitate parsing (Erik Kaneda). - Add _PLD panel positions (Fabian Wüthrich). - MADT: add Multiprocessor Wakeup Mailbox Structure and the SVKL table headers (Kuppuswamy Sathyanarayanan). - Use ACPI_FALLTHROUGH (Wei Ming Chen). - Add preliminary support for the Platform Runtime Mechanism (PRM) to allow the AML interpreter to call PRM functions (Erik Kaneda). - Address some issues related to the handling of device dependencies reported by _DEP in the ACPI device enumeration code and clean up some related pieces of it (Rafael Wysocki). - Improve the tracking of states of ACPI power resources (Rafael Wysocki). - Improve ACPI support for suspend-to-idle on AMD systems (Alex Deucher, Mario Limonciello, Pratik Vishwakarma). - Continue the unification and cleanup of message printing in the ACPI code (Hanjun Guo, Heiner Kallweit). - Fix possible buffer overrun issue with the description_show() sysfs attribute method (Krzysztof Wilczyński). - Improve the acpi_mask_gpe kernel command line parameter handling and clean up the core ACPI code related to sysfs (Andy Shevchenko, Baokun Li, Clayton Casciato). - Postpone bringing devices in the general ACPI PM domain to D0 during resume from system-wide suspend until they are really needed (Dmitry Torokhov). - Make the ACPI processor driver fix up C-state latency if not ordered (Mario Limonciello). - Add support for identifying devices depening on the given one that are not its direct descendants with the help of _DEP (Daniel Scally). - Extend the checks related to ACPI IRQ overrides on x86 in order to avoid false-positives (Hui Wang). - Add battery DPTF participant for Intel SoCs (Sumeet Pawnikar). - Rearrange the ACPI fan driver and device power management code to use a common list of device IDs (Rafael Wysocki). - Fix clang CFI violation in the ACPI BGRT table parsing code and clean it up (Nathan Chancellor). - Add GPE-related quirks for some laptops to the EC driver (Chris Chiu, Zhang Rui). - Make the ACPI PPTT table parsing code populate the cache-id value if present in the firmware (James Morse). - Remove redundant clearing of context->ret.pointer from acpi_run_osc() (Hans de Goede). - Add missing acpi_put_table() in acpi_init_fpdt() (Jing Xiangfeng). - Make ACPI APEI handle ARM Processor Error CPER records like Memory Error ones to avoid user space task lockups (Xiaofei Tan). - Stop warning about disabled ACPI in APEI (Jon Hunter). - Fix fall-through warning for Clang in the SBSHC driver (Gustavo A. R. Silva). - Add custom DSDT file as Makefile prerequisite (Richard Fitzgerald). - Initialize local variable to avoid garbage being returned (Colin Ian King). - Simplify assorted pieces of code, address assorted coding style and documentation issues and comment typos (Baokun Li, Christophe JAILLET, Clayton Casciato, Liu Shixin, Shaokun Zhang, Wei Yongjun, Yang Li, Zhen Lei)" * tag 'acpi-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (97 commits) ACPI: PM: postpone bringing devices to D0 unless we need them ACPI: tables: Add custom DSDT file as makefile prerequisite ACPI: bgrt: Use sysfs_emit ACPI: bgrt: Fix CFI violation ACPI: EC: trust DSDT GPE for certain HP laptop ACPI: scan: Simplify acpi_table_events_fn() ACPI: PM: Adjust behavior for field problems on AMD systems ACPI: PM: s2idle: Add support for new Microsoft UUID ACPI: PM: s2idle: Add support for multiple func mask ACPI: PM: s2idle: Refactor common code ACPI: PM: s2idle: Use correct revision id ACPI: sysfs: Remove tailing return statement in void function ACPI: sysfs: Use __ATTR_RO() and __ATTR_RW() macros ACPI: sysfs: Sort headers alphabetically ACPI: sysfs: Refactor param_get_trace_state() to drop dead code ACPI: sysfs: Unify pattern of memory allocations ACPI: sysfs: Allow bitmap list to be supplied to acpi_mask_gpe ACPI: sysfs: Make sparse happy about address space in use ACPI: scan: Fix race related to dropping dependencies ACPI: scan: Reorganize acpi_device_add() ...
2021-06-29Merge branches 'acpi-bus', 'acpi-scan' and 'acpi-tables'Rafael J. Wysocki1-5/+5
* acpi-bus: ACPI: Remove redundant clearing of context->ret.pointer from acpi_run_osc() * acpi-scan: ACPI: scan: Simplify acpi_table_events_fn() ACPI: scan: Fix race related to dropping dependencies ACPI: scan: Reorganize acpi_device_add() ACPI: scan: Fix device object rescan in acpi_scan_clear_dep() ACPI: scan: Make acpi_walk_dep_device_list() ACPI: scan: Rearrange acpi_dev_get_first_consumer_dev_cb() ACPI: scan: Define acpi_bus_put_acpi_device() as static inline ACPI: scan: initialize local variable to avoid garbage being returned ACPI: scan: Add function to fetch dependent of ACPI device ACPI: scan: Extend acpi_walk_dep_device_list() ACPI: scan: Rearrange dep_unmet initialization * acpi-tables: ACPI: tables: Add custom DSDT file as makefile prerequisite ACPI: bgrt: Use sysfs_emit ACPI: bgrt: Fix CFI violation ACPI: tables: FPDT: Add missing acpi_put_table() in acpi_init_fpdt() ACPI: tables: PPTT: Populate cache-id if provided by firmware
2021-06-25gpio: mxs: Prefer unsigned int to bare use of unsignedJinchao Wang1-2/+2
Fix checkpatch warnings: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: Jinchao Wang <wjc@cdjrlc.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-06-25gpio: AMD8111 and TQMX86 require HAS_IOPORT_MAPJohannes Berg1-0/+2
Both of these drivers use ioport_map(), so they need to depend on HAS_IOPORT_MAP. Otherwise, they cannot be built even with COMPILE_TEST on architectures without an ioport implementation, such as ARCH=um. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-06-22gpiolib: cdev: zero padding during conversion to gpioline_info_changedGabriel Knezek1-0/+1
When userspace requests a GPIO v1 line info changed event, lineinfo_watch_read() populates and returns the gpioline_info_changed structure. It contains 5 words of padding at the end which are not initialized before being returned to userspace. Zero the structure in gpio_v2_line_info_change_to_v1() before populating its contents. Fixes: aad955842d1c ("gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL") Signed-off-by: Gabriel Knezek <gabeknez@linux.microsoft.com> Reviewed-by: Kent Gibson <warthog618@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-06-21gpio: mxc: Fix disabled interrupt wake-up supportLoic Poulain1-1/+1
A disabled/masked interrupt marked as wakeup source must be re-enable and unmasked in order to be able to wake-up the host. That can be done by flaging the irqchip with IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND. Note: It 'sometimes' works without that change, but only thanks to the lazy generic interrupt disabling (keeping interrupt unmasked). Reported-by: Michal Koziel <michal.koziel@emlogic.no> Signed-off-by: Loic Poulain <loic.poulain@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-06-17mfd: tps68470: Remove tps68470 MFD driverDaniel Scally1-1/+1
This driver only covered one scenario in which ACPI devices with _HID INT3472 are found, and its functionality has been taken over by the intel-skl-int3472 module, so remove it. Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Scally <djrscally@gmail.com> Link: https://lore.kernel.org/r/20210603224007.120560-7-djrscally@gmail.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-06-16gpio: pca953x: Add support for the On Semi pca9655Peter Robinson1-0/+1
The On Semi pca9655 is a 16 bit variant of the On Semi pca9654 GPIO expander, with 16 GPIOs and interrupt functionality. Signed-off-by: Peter Robinson <pbrobinson@gmail.com> [Bartosz: fixed indentation as noted by Andy] Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-15 05:44:39 +0300