This is a note to let you know that I've just added the patch titled gpiolib: acpi: Allow to find GpioInt() resource by name and index to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: gpiolib-acpi-allow-to-find-gpioint-resource-by-name-and-index.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 809390219fb9c2421239afe5c9eb862d73978ba0 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Date: Thu, 25 Feb 2021 18:33:19 +0200 Subject: gpiolib: acpi: Allow to find GpioInt() resource by name and index From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> commit 809390219fb9c2421239afe5c9eb862d73978ba0 upstream. Currently only search by index is supported. However, in some cases we might need to pass the quirks to the acpi_dev_gpio_irq_get(). For this, split out acpi_dev_gpio_irq_get_by() and replace acpi_dev_gpio_irq_get() by calling above with NULL for name parameter. Fixes: ba8c90c61847 ("gpio: pca953x: Override IRQ for one of the expanders on Galileo Gen 2") Depends-on: 0ea683931adb ("gpio: dwapb: Convert driver to using the GPIO-lib-based IRQ-chip") Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Acked-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpio/gpiolib-acpi.c | 12 ++++++++---- include/linux/acpi.h | 10 ++++++++-- 2 files changed, 16 insertions(+), 6 deletions(-) --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -911,8 +911,9 @@ struct gpio_desc *acpi_node_get_gpiod(st } /** - * acpi_dev_gpio_irq_get() - Find GpioInt and translate it to Linux IRQ number + * acpi_dev_gpio_irq_get_by() - Find GpioInt and translate it to Linux IRQ number * @adev: pointer to a ACPI device to get IRQ from + * @name: optional name of GpioInt resource * @index: index of GpioInt resource (starting from %0) * * If the device has one or more GpioInt resources, this function can be @@ -922,9 +923,12 @@ struct gpio_desc *acpi_node_get_gpiod(st * The function is idempotent, though each time it runs it will configure GPIO * pin direction according to the flags in GpioInt resource. * + * The function takes optional @name parameter. If the resource has a property + * name, then only those will be taken into account. + * * Return: Linux IRQ number (> %0) on success, negative errno on failure. */ -int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) +int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index) { int idx, i; unsigned int irq_flags; @@ -934,7 +938,7 @@ int acpi_dev_gpio_irq_get(struct acpi_de struct acpi_gpio_info info; struct gpio_desc *desc; - desc = acpi_get_gpiod_by_index(adev, NULL, i, &info); + desc = acpi_get_gpiod_by_index(adev, name, i, &info); /* Ignore -EPROBE_DEFER, it only matters if idx matches */ if (IS_ERR(desc) && PTR_ERR(desc) != -EPROBE_DEFER) @@ -971,7 +975,7 @@ int acpi_dev_gpio_irq_get(struct acpi_de } return -ENOENT; } -EXPORT_SYMBOL_GPL(acpi_dev_gpio_irq_get); +EXPORT_SYMBOL_GPL(acpi_dev_gpio_irq_get_by); static acpi_status acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address, --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -1072,19 +1072,25 @@ void __acpi_handle_debug(struct _ddebug #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, struct acpi_resource_gpio **agpio); -int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index); +int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index); #else static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, struct acpi_resource_gpio **agpio) { return false; } -static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) +static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, + const char *name, int index) { return -ENXIO; } #endif +static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) +{ + return acpi_dev_gpio_irq_get_by(adev, NULL, index); +} + /* Device properties */ #ifdef CONFIG_ACPI Patches currently in stable-queue which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are queue-5.10/gpiolib-read-gpio-line-names-from-a-firmware-node.patch queue-5.10/gpiolib-acpi-allow-to-find-gpioint-resource-by-name-and-index.patch