1 files changed, 105 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml b/Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml
new file mode 100644
index 000000000..f2d1dc7e7
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/pwm-rockchip.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip PWM controller
+
+maintainers:
+  - Heiko Stuebner <heiko@sntech.de>
+
+properties:
+  compatible:
+    oneOf:
+      - const: rockchip,rk2928-pwm
+      - const: rockchip,rk3288-pwm
+      - const: rockchip,rk3328-pwm
+      - const: rockchip,vop-pwm
+      - items:
+          - const: rockchip,rk3036-pwm
+          - const: rockchip,rk2928-pwm
+      - items:
+          - enum:
+              - rockchip,rk3128-pwm
+              - rockchip,rk3368-pwm
+              - rockchip,rk3399-pwm
+              - rockchip,rv1108-pwm
+          - const: rockchip,rk3288-pwm
+      - items:
+          - enum:
+              - rockchip,px30-pwm
+              - rockchip,rk3308-pwm
+              - rockchip,rk3568-pwm
+              - rockchip,rk3588-pwm
+          - const: rockchip,rk3328-pwm
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    maxItems: 2
+
+  "#pwm-cells":
+    enum: [2, 3]
+    description:
+      Must be 2 (rk2928) or 3 (rk3288 and later).
+      See pwm.yaml for a description of the cell format.
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - $ref: pwm.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,rk3328-pwm
+              - rockchip,rv1108-pwm
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: Used to derive the functional clock for the device.
+            - description: Used as the APB bus clock.
+
+        clock-names:
+          items:
+            - const: pwm
+            - const: pclk
+
+      required:
+        - clocks
+        - clock-names
+
+    else:
+      properties:
+        clocks:
+          maxItems: 1
+          description:
+            Used both to derive the functional clock
+            for the device and as the bus clock.
+
+      required:
+        - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rk3188-cru-common.h>
+    pwm0: pwm@20030000 {
+      compatible = "rockchip,rk2928-pwm";
+      reg = <0x20030000 0x10>;
+      clocks = <&cru PCLK_PWM01>;
+      #pwm-cells = <2>;
+    };