T-HEAD SoCs such as the TH1520 contain a PWM controller used
to control the LCD backlight, fan and so on.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../bindings/pwm/thead,th1520-pwm.yaml | 44 +++++++++++++++++++
1 file changed, 44 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/thead,th1520-pwm.yaml
diff --git a/Documentation/devicetree/bindings/pwm/thead,th1520-pwm.yaml b/Documentation/devicetree/bindings/pwm/thead,th1520-pwm.yaml
new file mode 100644
index 000000000000..e75d8e9f24c5
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/thead,th1520-pwm.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/thead,th1520-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: T-HEAD TH1520 PWM
+
+maintainers:
+ - Jisheng Zhang <jszhang@kernel.org>
+
+allOf:
+ - $ref: pwm.yaml#
+
+properties:
+ compatible:
+ enum:
+ - thead,th1520-pwm
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ "#pwm-cells":
+ const: 3
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+
+ pwm@ec01c000 {
+ compatible = "thead,th1520-pwm";
+ reg = <0xec01c000 0x1000>;
+ clocks = <&clk 1>;
+ #pwm-cells = <3>;
+ };
--
2.40.1