On 2024/9/6 10:44, Yixun Lan wrote:
On 20:10 Thu 05 Sep , Chen Wang wrote:
From: Chen Wang <unicorn_wang@xxxxxxxxxxx>
Add binding document for sophgo,sg2042-pwm.
Signed-off-by: Chen Wang <unicorn_wang@xxxxxxxxxxx>
---
.../bindings/pwm/sophgo,sg2042-pwm.yaml | 52 +++++++++++++++++++
1 file changed, 52 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/sophgo,sg2042-pwm.yaml
diff --git a/Documentation/devicetree/bindings/pwm/sophgo,sg2042-pwm.yaml b/Documentation/devicetree/bindings/pwm/sophgo,sg2042-pwm.yaml
new file mode 100644
index 000000000000..10212694dd41
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/sophgo,sg2042-pwm.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/sophgo,sg2042-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SG2042 PWM controller
+
+maintainers:
+ - Chen Wang <unicorn_wang@xxxxxxxxxxx>
+
+description: |
you can drop | here
Ack and thanks.
+ This controller contains 4 channels which can generate PWM waveforms.
+
+allOf:
+ - $ref: pwm.yaml#
+
+properties:
+ compatible:
+ const: sophgo,sg2042-pwm
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: apb
+
+ "#pwm-cells":
..
+ # See pwm.yaml in this directory for a description of the cells format.
I think you can drop this comment, since no useful information added
also it's already refered to standard pwm.yaml
I add this comment just want to reminder. Ok, anyway, it can be removed
to make doc clear.
+ const: 2
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
also "#pwm-cells"?
I think it has been required in pwm.yaml, so no need to required it
again here.
+
+additionalProperties: false
+
+examples:
+ - |
+ pwm@7f006000 {
+ compatible = "sophgo,sg2042-pwm";
+ reg = <0x7f006000 0x1000>;
+ #pwm-cells = <2>;
+ clocks = <&clock 67>;
+ clock-names = "apb";
+ };
--
2.34.1
