[v3 1/2] dt-bindings: pwm: add atcpit100

[Ben Zong-You Xie <ben717@andestech.com>]

Document devicetree bindings for Andes PWM controller.

Signed-off-by: Ben Zong-You Xie <ben717@andestech.com>
---
 .../bindings/pwm/andestech,atcpit100-pwm.yaml | 51 +++++++++++++++++++
 MAINTAINERS                                   |  5 ++
 2 files changed, 56 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/andestech,atcpit100-pwm.yaml

diff --git a/Documentation/devicetree/bindings/pwm/andestech,atcpit100-pwm.yaml b/Documentation/devicetree/bindings/pwm/andestech,atcpit100-pwm.yaml
new file mode 100644
index 000000000000..20d099c1503f
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/andestech,atcpit100-pwm.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/andestech,atcpit100-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Andes PWM controller
+
+maintainers:
+  - Ben Zong-You Xie <ben717@andestech.com>
+
+allOf:
+  - $ref: pwm.yaml#
+
+properties:
+  compatible:
+    const: andestech,atcpit100
+
+  reg:
+    maxItems: 1
+
+  "#pwm-cells":
+    const: 3
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: ext
+      - const: apb
+
+
+required:
+  - compatible
+  - reg
+  - "#pwm-cells"
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    pwm@f0400000 {
+      compatible = "andestech,atcpit100";
+      reg = <0xf0400000 0x1000>;
+      #pwm-cells = <3>;
+      clocks = <&smu 1>, <&smu 7>;
+      clock-names = "ext", "apb";
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 1e930c7a58b1..bc54216d1835 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3588,6 +3588,11 @@ F:	drivers/power/reset/atc260x-poweroff.c
 F:	drivers/regulator/atc260x-regulator.c
 F:	include/linux/mfd/atc260x/*
 
+ATCPIT100 PWM DRIVER
+M:	Ben Zong-You Xie <ben717@andestech.com>
+S:	Supported
+F:	Documentation/devicetree/bindings/pwm/andestech,atcpit100-pwm.yaml
+
 ATHEROS 71XX/9XXX GPIO DRIVER
 M:	Alban Bedel <albeu@free.fr>
 S:	Maintained
-- 
2.34.1