leds/backlight/ti%2Clm3509.yaml

1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: TI LM3509 High Efficiency Boost for White LED's and/or OLED Displays
10   - Patrick Gansterer <paroga@paroga.com>
13   The LM3509 current mode boost converter offers two separate outputs.
23   "#address-cells":
26   "#size-cells":
29   reset-gpios:
32   ti,brightness-rate-of-change-us:
36   ti,oled-mode:
49           The control register that is used to program the two current sinks.
51           as 0 or 1 in this property. The two current sinks can be controlled
53           configured to control both sinks with the led-sources property.
59       led-sources:
66       default-brightness:
71       max-brightness:
77       - reg
82   - compatible
83   - reg
88   - |
89     #include <dt-bindings/gpio/gpio.h>
91         #address-cells = <1>;
92         #size-cells = <0>;
97             reset-gpios = <&gpio2 5 GPIO_ACTIVE_LOW>;
99             ti,oled-mode;
100             ti,brightness-rate-of-change-us = <52000>;
102             #address-cells = <1>;
103             #size-cells = <0>;
107                 led-sources = <0 1>;
108                 label = "lcd-backlight";
109                 default-brightness = <12>;
110                 max-brightness = <31>;
114   - |
116         #address-cells = <1>;
117         #size-cells = <0>;
123             #address-cells = <1>;
124             #size-cells = <0>;
128                 default-brightness = <12>;
133                 default-brightness = <15>;