Mika Westerberg 79b804cb6a gpiolib: Make it possible to exclude GPIOs from IRQ domain ... When using GPIO irqchip helpers to setup irqchip for a gpiolib based driver, it is not possible to select which GPIOs to add to the IRQ domain. Instead it just adds all GPIOs which is not always desired. For example there might be GPIOs that for some reason cannot generated normal interrupts at all. To support this we add a flag irq_need_valid_mask to struct gpio_chip. When this flag is set the core allocates irq_valid_mask that holds one bit for each GPIO the chip has. By default all bits are set but drivers can manipulate this using set_bit() and clear_bit() accordingly. Then when gpiochip_irqchip_add() is called, this mask is checked and all GPIOs with bit is set are added to the IRQ domain created for the GPIO chip. Suggested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>		2016-09-23 14:49:50 +02:00
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00-INDEX	gpio: document interaction with other subsystems	2015-07-21 11:39:32 +02:00
board.txt	gpio: documenatation: fix GPIO_LOOKUP{,_IDX} documentation	2016-02-25 16:01:51 +01:00
consumer.txt	Doc: gpio: Fix typos in Documentation/gpio	2015-11-20 16:51:16 -07:00
driver.txt	gpiolib: Make it possible to exclude GPIOs from IRQ domain	2016-09-23 14:49:50 +02:00
drivers-on-gpio.txt	gpio: Fix paths to GPIO driver source files	2016-06-13 09:30:31 +02:00
gpio-legacy.txt	gpio: remove gpiod_sysfs_set_active_low	2015-05-12 10:46:53 +02:00
gpio.txt
sysfs.txt	Typo correction for description in gpio document.	2015-10-11 15:39:01 -06:00