[PATCH 01/10] dt-bindings: pwm: Add SI-EN SN3112 PWM support

Xilin Wu via B4 Relay
2024-04-24T15:29:30Z

From: Junhao Xie <bigfoot@classfun.cn>

Add a new driver for the SI-EN SN3112 12-channel 8-bit PWM LED controller.

Signed-off-by: Junhao Xie <bigfoot@classfun.cn>
---
.../devicetree/bindings/pwm/si-en,sn3112-pwm.yaml | 55 ++++++++++++++++++++++
1 file changed, 55 insertions(+)

diff --git a/Documentation/devicetree/bindings/pwm/si-en,sn3112-pwm.yaml b/Documentation/devicetree/bindings/pwm/si-en,sn3112-pwm.yaml
new file mode 100644
index 000000000000..2ab229ac40ce
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/si-en,sn3112-pwm.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/si-en,sn3112-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SI-EN SN3112 12-channel 8-bit PWM LED controller
+
+maintainers:
+ - Junhao Xie <bigfoot@classfun.cn>
+
+allOf:
+ - $ref: pwm.yaml#
+
+properties:
+ compatible:
+ const: si-en,sn3112-pwm
+
+ reg:
+ const: 0x54
+ description: I2C slave address
+
+ sdb-gpios:
+ maxItems: 1
+ description: GPIO pin to hardware shutdown the device.
+
+ vdd-supply:
+ description: Chip vdd supply
+
+ "#pwm-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - "#pwm-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pwm@54 {
+ compatible = "si-en,sn3112-pwm";
+ reg = <0x54>;
+ sdb-gpios = <&pio 1 1 GPIO_ACTIVE_LOW>; /* PA1 */
+ vdd-supply = <&reg_dcdc1>;
+ #pwm-cells = <1>;
+ };
+ };

--
2.44.0