diff options
| author | Thierry Reding <treding@nvidia.com> | 2019-10-02 16:45:02 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-10-05 00:07:06 +0200 |
| commit | 2a36550567307b881ce570a81189682ae1c9d08d (patch) | |
| tree | 5975e71755d02430d7d649d688f52f50d9d1a881 /drivers/gpio/Kconfig | |
| parent | ab3dd9cc24d4d49739cec0c7763e473ddd22f9c1 (diff) | |
| download | linux-2a36550567307b881ce570a81189682ae1c9d08d.tar.bz2 | |
gpio: tegra186: Implement wake event support
The GPIO controller doesn't have any controls to enable the system to
wake up from low power states based on activity on GPIO pins. An extra
hardware block that is part of the power management controller (PMC)
contains these controls. In order for the GPIO controller to be able
to cooperate with the PMC, obtain a reference to the PMC's IRQ domain
and make it a parent to the GPIO controller's IRQ domain. This way the
PMC gets an opportunity to program the additional registers required
to enable wakeup sources on suspend.
Based on additional work by Bitan Biswas <bbiswas@nvidia.com>.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20191002144502.156393-2-thierry.reding@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/Kconfig')
| -rw-r--r-- | drivers/gpio/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 7138290cdd36..7365cf150ae5 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -539,6 +539,7 @@ config GPIO_TEGRA186 depends on ARCH_TEGRA_186_SOC || COMPILE_TEST depends on OF_GPIO select GPIOLIB_IRQCHIP + select IRQ_DOMAIN_HIERARCHY help Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. |