On Tue, Jul 31, 2018 at 01:59:19PM +0800, djw@xxxxxxxxxxxxx wrote: > From: Levin Du <djw@xxxxxxxxxxxxx> > > In Rockchip RK3328, the output only GPIO_MUTE pin, originally for codec > mute control, can also be used for general purpose. It is manipulated by > the GRF_SOC_CON10 register in GRF. Aside from the GPIO_MUTE pin, the HDMI > pins can also be set in the same way. > > Currently this GRF GPIO controller only supports the mute pin. If needed > in the future, the HDMI pins support can also be added. > > Signed-off-by: Levin Du <djw@xxxxxxxxxxxxx> > > --- > > Changes in v4: > - Rename the GPIO binding to "rockchip,rk3328-grf-gpio" > > Changes in v3: > - Change from general gpio-syscon to specific rk3328-gpio-mute > > Changes in v2: > - Rename gpio_syscon10 to gpio_mute in doc > > Changes in v1: > - Refactured for general gpio-syscon usage for Rockchip SoCs. > - Add doc rockchip,gpio-syscon.txt > > .../bindings/gpio/rockchip,rk3328-grf-gpio.txt | 32 ++++++++++++++++++++++ > drivers/gpio/gpio-syscon.c | 31 +++++++++++++++++++++ > 2 files changed, 63 insertions(+) > create mode 100644 Documentation/devicetree/bindings/gpio/rockchip,rk3328-grf-gpio.txt Reviewed-by: Rob Herring <robh@xxxxxxxxxx> _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip
