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dt-bindings: qti-tri-led: Add bindings

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Add snapshot of the devicetree bindings for the leds-qti-tri-led driver
as of msm-4.19 'commit 00392c21d13b ("Merge "ARM: dts: msm: add VRR
resolutions for qsync panel on lito"")'.

Change-Id: I65774d4b361a43a736c692c12cdfcd8bf8d4b7ea
This commit is contained in:
Guru Das Srinagesh 2019-11-25 12:03:42 -08:00
commit 5e07fdf248
1 changed files with 72 additions and 0 deletions
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bindings/leds/leds-qti-tri-led.txt Normal file
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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: <prop-encoded-array>
Definition: Register base of the TRI_LED module and length.
- 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 0x100>;
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>;
};
};