linux-kernel - [PATCH v3 1/2] dt-bindings: pwm: Add T-HEAD PWM controller

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Message-Id: <20231005130519.3864-2-jszhang@kernel.org>
Date:   Thu,  5 Oct 2023 21:05:18 +0800
From:   Jisheng Zhang <jszhang@...nel.org>
To:     Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Guo Ren <guoren@...nel.org>, Fu Wei <wefu@...hat.com>
Cc:     linux-pwm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
        Rob Herring <robh@...nel.org>
Subject: [PATCH v3 1/2] dt-bindings: pwm: Add T-HEAD PWM controller

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@...nel.org>
Reviewed-by: Rob Herring <robh@...nel.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@...nel.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@...1c000 {
+        compatible = "thead,th1520-pwm";
+        reg = <0xec01c000 0x1000>;
+        clocks = <&clk 1>;
+        #pwm-cells = <3>;
+    };
-- 
2.40.1