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714b1dd8f7
linux/drivers/pinctrl
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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
..
bcm pinctrl: bcm2835: Clear the event latch register when disabling interrupts 2015-07-20 11:01:52 +02:00
berlin ARM: SoC: driver updates for v4.2 2015-06-26 11:54:29 -07:00
freescale pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
intel Here is the bulk of pin control changes for the v4.2 series: 2015-06-24 19:21:02 -07:00
mediatek Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
meson Here is the bulk of pin control changes for the v4.2 series: 2015-06-24 19:21:02 -07:00
mvebu Here is the bulk of pin control changes for the v4.2 series: 2015-06-24 19:21:02 -07:00
nomadik pinctrl: abx500: remove strict mode 2015-07-20 11:01:51 +02:00
qcom Here is the bulk of pin control changes for the v4.2 series: 2015-06-24 19:21:02 -07:00
samsung pinctrl: samsung: Remove old unused defines 2015-07-17 09:55:55 +02:00
sh-pfc sh-pfc: fix sparse GPIOs for R-Car SoCs 2015-07-20 11:01:52 +02:00
sirf pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
spear pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
sunxi Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
vt8500 pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
core.c Here is the bulk of pin control changes for the v4.2 series: 2015-06-24 19:21:02 -07:00
core.h pinctrl: Don't just pretend to protect pinctrl_maps, do it for real 2015-05-06 16:24:28 +02:00
devicetree.c pinctrl: Don't just pretend to protect pinctrl_maps, do it for real 2015-05-06 16:24:28 +02:00
devicetree.h
Kconfig pinctrl: sirf: add sirf atlas7 pinctrl and gpio support 2015-05-19 16:01:30 +02:00
Makefile pinctrl: Add Pistachio SoC pin control driver 2015-05-12 13:19:41 +02:00
pinconf-generic.c pinctrl: pinconf-generic: add dt node names to error messages 2015-03-27 09:53:10 +01:00
pinconf.c pinctrl: pinconf-generic: Allow driver to specify DT params 2015-01-11 22:32:19 +01:00
pinconf.h pinctrl: pinconf-generic: Allow driver to specify DT params 2015-01-11 22:32:19 +01:00
pinctrl-adi2-bf54x.c
pinctrl-adi2-bf60x.c
pinctrl-adi2.c Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
pinctrl-adi2.h
pinctrl-amd.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-amd.h Fix inconsistent spinlock of AMD GPIO driver which can be 2015-04-07 11:36:49 +02:00
pinctrl-as3722.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-at91.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-at91.h
pinctrl-coh901.c
pinctrl-coh901.h
pinctrl-falcon.c staging: drivers: pinctrl: Fixed checkpatch.pl warnings 2015-01-21 11:02:26 +01:00
pinctrl-lantiq.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-lantiq.h pinctrl: lantiq: fix include guard #endif comment 2015-03-09 18:10:57 +01:00
pinctrl-lpc18xx.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-palmas.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-pistachio.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-rockchip.c pinctrl: rockchip: add support for the rk3368 2015-06-17 10:21:02 +02:00
pinctrl-single.c pinctrl: single: ensure pcs irq will not be forced threaded 2015-07-20 11:01:52 +02:00
pinctrl-st.c Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
pinctrl-tb10x.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-tegra20.c pinctrl: tegra: some bits move between registers 2015-03-09 18:10:58 +01:00
pinctrl-tegra30.c pinctrl: tegra: some bits move between registers 2015-03-09 18:10:58 +01:00
pinctrl-tegra114.c pinctrl: tegra: some bits move between registers 2015-03-09 18:10:58 +01:00
pinctrl-tegra124.c pinctrl: tegra: some bits move between registers 2015-03-09 18:10:58 +01:00
pinctrl-tegra210.c pinctrl: tegra: add a driver for Tegra210 2015-03-09 18:10:59 +01:00
pinctrl-tegra-xusb.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-tegra.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-tegra.h pinctrl: tegra: use signed bitfields for optional fields 2015-03-19 09:20:17 +01:00
pinctrl-tz1090-pdc.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-tz1090.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-u300.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinctrl-utils.c
pinctrl-utils.h
pinctrl-xway.c pinctrl: lantiq: remove bogus of_gpio_chip_add 2015-01-14 14:20:46 +01:00
pinctrl-zynq.c pinctrl: make pinctrl_register() return proper error code 2015-06-10 14:49:52 +02:00
pinmux.c pinctrl: don't print unavailable function groups 2015-06-10 10:44:05 +02:00
pinmux.h