diff options
Diffstat (limited to 'dts/Bindings/gpio/rockchip,rk3328-grf-gpio.txt')
| -rw-r--r-- | dts/Bindings/gpio/rockchip,rk3328-grf-gpio.txt | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/dts/Bindings/gpio/rockchip,rk3328-grf-gpio.txt b/dts/Bindings/gpio/rockchip,rk3328-grf-gpio.txt deleted file mode 100644 index f9231df17c..0000000000 --- a/dts/Bindings/gpio/rockchip,rk3328-grf-gpio.txt +++ /dev/null @@ -1,32 +0,0 @@ -Rockchip RK3328 GRF (General Register Files) GPIO controller. - -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 GPIO controller only supports the mute pin. If needed in the -future, the HDMI pins support can also be added. - -Required properties: -- compatible: Should contain "rockchip,rk3328-grf-gpio". -- gpio-controller: Marks the device node as a gpio controller. -- #gpio-cells: Should be 2. The first cell is the pin number and - the second cell is used to specify the gpio polarity: - 0 = Active high, - 1 = Active low. - -Example: - - grf: syscon@ff100000 { - compatible = "rockchip,rk3328-grf", "syscon", "simple-mfd"; - - grf_gpio: grf-gpio { - compatible = "rockchip,rk3328-grf-gpio"; - gpio-controller; - #gpio-cells = <2>; - }; - }; - -Note: The grf_gpio node should be declared as the child of the GRF (General -Register File) node. The GPIO_MUTE pin is referred to as <&grf_gpio 0>. |