dt-bindings: gpio: convert rk3328-grf-gpio.txt to YAML

Current dts files with RK3328 GRF 'gpio' nodes are manually verified. In order to automate this process rk3328-grf-gpio.txt has to be converted to YAML. Rename 'grf-gpio' nodename to 'gpio'. Signed-off-by: Johan Jonker <[email protected]> Reviewed-by: Rob Herring <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Signed-off-by: Bartosz Golaszewski <[email protected]>
tadfisher · May 12, 2021 · 63c4acf · 63c4acf
1 parent 6efb943
commit 63c4acf
Show file tree

Hide file tree

Showing 2 changed files with 50 additions and 32 deletions.
diff --git a/Documentation/devicetree/bindings/gpio/rockchip,rk3328-grf-gpio.txt b/Documentation/devicetree/bindings/gpio/rockchip,rk3328-grf-gpio.txt
diff --git a/Documentation/devicetree/bindings/gpio/rockchip,rk3328-grf-gpio.yaml b/Documentation/devicetree/bindings/gpio/rockchip,rk3328-grf-gpio.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/rockchip,rk3328-grf-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3328 General Register Files GPIO controller
+
+description:
+  The Rockchip RK3328 General Register File (GRF) outputs only the
+  GPIO_MUTE pin, originally for codec mute control, but it can also be used
+  for general purpose. It is manipulated by the GRF_SOC_CON10 register.
+  If needed in the future support for the HDMI pins can also be added.
+  The GPIO node should be declared as the child of the GRF node.
+
+  The GPIO_MUTE pin is referred to in the format
+
+  <&grf_gpio 0 GPIO_ACTIVE_LOW>
+
+  The first cell is the pin number and
+  the second cell is used to specify the GPIO polarity
+    0 = Active high
+    1 = Active low
+
+maintainers:
+  - Heiko Stuebner <[email protected]>
+
+properties:
+  compatible:
+    const: rockchip,rk3328-grf-gpio
+
+  gpio-controller: true
+
+  "#gpio-cells":
+    const: 2
+
+required:
+  - compatible
+  - gpio-controller
+  - "#gpio-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    grf_gpio: gpio {
+      compatible = "rockchip,rk3328-grf-gpio";
+      gpio-controller;
+      #gpio-cells = <2>;
+    };