xref: /openbmc/linux/Documentation/devicetree/bindings/leds/backlight/tps65217-backlight.txt (revision e5451c8f8330e03ad3cfa16048b4daf961af434f)
1*7755313eSRob HerringTPS65217 family of regulators
2*7755313eSRob Herring
3*7755313eSRob HerringThe TPS65217 chip contains a boost converter and current sinks which can be
4*7755313eSRob Herringused to drive LEDs for use as backlights.
5*7755313eSRob Herring
6*7755313eSRob HerringRequired properties:
7*7755313eSRob Herring- compatible: "ti,tps65217"
8*7755313eSRob Herring- reg: I2C slave address
9*7755313eSRob Herring- backlight: node for specifying WLED1 and WLED2 lines in TPS65217
10*7755313eSRob Herring- isel: selection bit, valid values: 1 for ISEL1 (low-level) and 2 for ISEL2 (high-level)
11*7755313eSRob Herring- fdim: PWM dimming frequency, valid values: 100, 200, 500, 1000
12*7755313eSRob Herring- default-brightness: valid values: 0-100
13*7755313eSRob Herring
14*7755313eSRob HerringEach regulator is defined using the standard binding for regulators.
15*7755313eSRob Herring
16*7755313eSRob HerringExample:
17*7755313eSRob Herring
18*7755313eSRob Herring	tps: tps@24 {
19*7755313eSRob Herring		reg = <0x24>;
20*7755313eSRob Herring		compatible = "ti,tps65217";
21*7755313eSRob Herring		backlight {
22*7755313eSRob Herring			isel = <1>;  /* 1 - ISET1, 2 ISET2 */
23*7755313eSRob Herring			fdim = <100>; /* TPS65217_BL_FDIM_100HZ */
24*7755313eSRob Herring			default-brightness = <50>;
25*7755313eSRob Herring		};
26*7755313eSRob Herring	};
27*7755313eSRob Herring
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