dt-bindings: pwm: Add DT bindings ep93xx PWM

Add YAML bindings for ep93xx SoC.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>

diff --git a/Documentation/devicetree/bindings/pwm/cirrus,ep93xx-pwm.yaml b/Documentation/devicetree/bindings/pwm/cirrus,ep93xx-pwm.yaml
new file mode 100644 (file)
index 0000000..e0bdde4
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/cirrus,ep93xx-pwm.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/cirrus,ep93xx-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logick ep93xx PWM controller
+
+maintainers:
+  - Thierry Reding <thierry.reding@gmail.com>
+
+properties:
+  compatible:
+    enum:
+      - cirrus,ep9301-pwm
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: SoC PWM clock
+
+  clock-names:
+    items:
+      - const: pwm_clk
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/cirrus,ep93xx-clock.h>
+    pwm0: pwm@80910000 {
+        compatible = "cirrus,ep9301-pwm";
+        reg = <0x80910000 0x10>;
+        clocks = <&syscon EP93XX_CLK_PWM>;
+        clock-names = "pwm_clk";
+    };
+
+...