Jonathan Bell 714b1dd8f7 pinctrl: bcm2835: Clear the event latch register when disabling interrupts ... It's possible to hit a race condition if interrupts are generated on a GPIO pin when the IRQ line in question is being disabled. If the interrupt is freed, bcm2835_gpio_irq_disable() is called which disables the event generation sources (edge, level). If an event occurred between the last disabling of hard IRQs and the write to the event source registers, a bit would be set in the GPIO event detect register (GPEDSn) which goes unacknowledged by bcm2835_gpio_irq_handler() so Linux complains loudly. There is no per-GPIO mask register, so when disabling GPIO interrupts write 1 to the relevant bit in GPEDSn to clear out any stale events. Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>		2015-07-20 11:01:52 +02:00
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Kconfig	pinctrl: cygnus: add gpio/pinconf driver	2015-03-18 02:02:19 +01:00
Makefile	pinctrl: cygnus: add gpio/pinconf driver	2015-03-18 02:02:19 +01:00
pinctrl-bcm281xx.c	pinctrl: make pinctrl_register() return proper error code	2015-06-10 14:49:52 +02:00
pinctrl-bcm2835.c	pinctrl: bcm2835: Clear the event latch register when disabling interrupts	2015-07-20 11:01:52 +02:00
pinctrl-cygnus-gpio.c	Here is the bulk of pin control changes for the v4.2 series:	2015-06-24 19:21:02 -07:00
pinctrl-cygnus-mux.c	pinctrl: make pinctrl_register() return proper error code	2015-06-10 14:49:52 +02:00