Qualcomm Technologies, Inc. TRI_LED driver specific bindings

This binding document describes the properties of TRI_LED module in
Qualcomm Technologies, Inc. PMIC chips.

- compatible:
	Usage: required
	Value type: <string>
	Definition: Must be "qcom,tri-led".

- reg:
	Usage: required
	Value type: <u32>
	Definition: Register base of the TRI_LED module.

- nvmem-names:
	Usage: optional
	Value type: <string>
	Definition: Nvmem device name for SDAM to do PBS trigger. It must be
		defined as "pbs_sdam". This is required only for HR_LEDs.

- nvmem:
	Usage: optional
	Value type: <phandle>
	Definition: Phandle of the nvmem device name to access SDAM to do PBS
		trigger. This is required only for HR_LEDs.

Properties for child nodes:
- pwms:
	Usage: required
	Value type: <prop-encoded-array>
	Definition: The PWM device (phandle) used for controlling LED.

- led-sources:
	Usage: required
	Value type: <prop-encoded-array>
	Definition: see Documentation/devicetree/bindings/leds/common.txt;
		Device current output identifiers are: 0 - LED1_EN,
		1 - LED2_EN, 2 - LED3_EN.

- label:
	Usage: optional
	Value type: <string>
	Definition: see Documentation/devicetree/bindings/leds/common.txt;

- linux,default-trigger:
	Usage: optional
	Value_type: <string>
	Definition: see Documentation/devicetree/bindings/leds/common.txt;

Example:

	pmi8998_rgb: tri-led@d000{
		compatible = "qcom,tri-led";
		reg = <0xd000>;

		red {
			label = "red";
			pwms = <&pmi8998_lpg 4 1000000>;
			led-sources = <0>;
		};
		green {
			label = "green";
			pwms = <&pmi8998_lpg 3 1000000>;
			led-sources = <1>;
		};
		blue {
			label = "blue";
			pwms = <&pmi8998_lpg 2 1000000>;
			led-sources = <2>;
		};
	};
