leds/backlight/mps%2Cmp3309c.yaml

1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/mps,mp3309c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MPS MP3309C backlight
10   - Flavio Suligoi <f.suligoi@asem.it>
13   The Monolithic Power (MPS) MP3309C is a WLED step-up converter, featuring a
17   - analog mode, via I2C commands, as default mode (32 dimming levels)
18   - PWM controlled mode (optional)
24   - $ref: common.yaml#
34     description: if present, the backlight is controlled in PWM mode.
37   enable-gpios:
38     description: GPIO used to enable the backlight in "analog-i2c" dimming mode.
41   mps,overvoltage-protection-microvolt:
46   mps,no-sync-mode:
51   - compatible
52   - reg
57   - |
59         #address-cells = <1>;
60         #size-cells = <0>;
62         /* Backlight with PWM control */
63         backlight_pwm: backlight@17 {
66             pwms = <&pwm1 0 3333333 0>; /* 300 Hz --> (1/f) * 1*10^9 */
67             brightness-levels = <0 4 8 16 32 64 128 255>;
68             default-brightness = <6>;
69             mps,overvoltage-protection-microvolt = <24000000>;