leds/backlight/mediatek%2Cmt6370-backlight.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/mediatek,mt6370-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MediaTek MT6370 Backlight
10   - ChiaEn Wu <chiaen_wu@richtek.com>
14   The MT6370 Backlight WLED driver supports up to a 29V output voltage for
21   - $ref: common.yaml#
26       - mediatek,mt6370-backlight
27       - mediatek,mt6372-backlight
29   default-brightness:
32   max-brightness:
35   enable-gpios:
36     description: External backlight 'enable' pin
39   mediatek,bled-pwm-enable:
41       Enable external PWM input for backlight dimming
44   mediatek,bled-pwm-hys-enable:
46       Enable the backlight input-hysteresis for PWM mode
49   mediatek,bled-pwm-hys-input-th-steps:
53       The selection of the upper and lower bounds threshold of backlight
54       PWM resolution. If we choose selection 64, the variation of PWM
57   mediatek,bled-ovp-shutdown:
59       Enable the backlight shutdown when OVP level triggered
62   mediatek,bled-ovp-microvolt:
65       Backlight OVP level selection.
67   mediatek,bled-ocp-shutdown:
69       Enable the backlight shutdown when OCP level triggered.
72   mediatek,bled-ocp-microamp:
75       Backlight OC level selection.
77   mediatek,bled-exponential-mode-enable:
79       Enable the exponential mode of backlight brightness. If this property
83   mediatek,bled-channel-use:
86       Backlight LED channel to be used.
88         - 0: CH4
89         - 1: CH3
90         - 2: CH2
91         - 3: CH1
99         const: mediatek,mt6372-backlight
103     default-brightness:
106     max-brightness:
111     default-brightness:
114     max-brightness:
118   - compatible
119   - mediatek,bled-channel-use