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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/backlight/mps,mp3309c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MPS MP3309C backlight
+
+maintainers:
+  - Flavio Suligoi <f.suligoi@asem.it>
+
+description: |
+  The Monolithic Power (MPS) MP3309C is a WLED step-up converter, featuring a
+  programmable switching frequency to optimize efficiency.
+  It supports two different dimming modes:
+
+  - analog mode, via I2C commands, as default mode (32 dimming levels)
+  - PWM controlled mode (optional)
+
+  The datasheet is available at:
+  https://www.monolithicpower.com/en/mp3309c.html
+
+allOf:
+  - $ref: common.yaml#
+
+properties:
+  compatible:
+    const: mps,mp3309c
+
+  reg:
+    maxItems: 1
+
+  pwms:
+    description: if present, the backlight is controlled in PWM mode.
+    maxItems: 1
+
+  enable-gpios:
+    description: GPIO used to enable the backlight in "analog-i2c" dimming mode.
+    maxItems: 1
+
+  mps,overvoltage-protection-microvolt:
+    description: Overvoltage protection (13.5V, 24V or 35.5V).
+    enum: [ 13500000, 24000000, 35500000 ]
+    default: 35500000
+
+  mps,no-sync-mode:
+    description: disable synchronous rectification mode
+    type: boolean
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        /* Backlight with PWM control */
+        backlight_pwm: backlight@17 {
+            compatible = "mps,mp3309c";
+            reg = <0x17>;
+            pwms = <&pwm1 0 3333333 0>; /* 300 Hz --> (1/f) * 1*10^9 */
+            brightness-levels = <0 4 8 16 32 64 128 255>;
+            default-brightness = <6>;
+            mps,overvoltage-protection-microvolt = <24000000>;
+        };
+    };