dt-bindings: pwm: Add Cirrus EP93xx

Add YAML bindings for ep93xx SoC PWM.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

diff --git a/Documentation/devicetree/bindings/pwm/cirrus,ep9301-pwm.yaml b/Documentation/devicetree/bindings/pwm/cirrus,ep9301-pwm.yaml
new file mode 100644 (file)
index 0000000..825c321
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/cirrus,ep9301-pwm.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/cirrus,ep9301-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logick ep93xx PWM controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9301-pwm
+      - items:
+          - enum:
+              - cirrus,ep9302-pwm
+              - cirrus,ep9307-pwm
+              - cirrus,ep9312-pwm
+              - cirrus,ep9315-pwm
+          - const: cirrus,ep9301-pwm
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: SoC PWM clock
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/cirrus,ep93xx-clock.h>
+    pwm@80910000 {
+      compatible = "cirrus,ep9301-pwm";
+      reg = <0x80910000 0x10>;
+      clocks = <&syscon EP93XX_CLK_PWM>;
+    };
+
+...