# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/leds/leds-qcom-lpg.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Light Pulse Generator
maintainers:
- Bjorn Andersson <[email protected]>
description: >
The Qualcomm Light Pulse Generator consists of three different hardware blocks;
a ramp generator with lookup table (LUT), the light pulse generator and a three
channel current sink. These blocks are found in a wide range of Qualcomm PMICs.
properties:
compatible:
oneOf:
- enum:
- qcom,pm660l-lpg
- qcom,pm8150b-lpg
- qcom,pm8150l-lpg
- qcom,pm8350c-pwm
- qcom,pm8916-pwm
- qcom,pm8941-lpg
- qcom,pm8994-lpg
- qcom,pmc8180c-lpg
- qcom,pmi632-lpg
- qcom,pmi8950-pwm
- qcom,pmi8994-lpg
- qcom,pmi8998-lpg
- qcom,pmk8550-pwm
- items:
- enum:
- qcom,pm6150l-lpg
- const: qcom,pm8150l-lpg
- items:
- enum:
- qcom,pm8550-pwm
- const: qcom,pm8350c-pwm
"#pwm-cells":
const: 2
"#address-cells":
const: 1
"#size-cells":
const: 0
qcom,power-source:
$ref: /schemas/types.yaml#/definitions/uint32
description:
power-source used to drive the output, as defined in the datasheet.
Should be specified if the TRILED block is present
enum: [0, 1, 3]
qcom,dtest:
$ref: /schemas/types.yaml#/definitions/uint32-matrix
description: >
A list of integer pairs, where each pair represent the dtest line the
particular channel should be connected to and the flags denoting how the
value should be outputted, as defined in the datasheet. The number of
pairs should be the same as the number of channels.
items:
items:
- description: dtest line to attach
- description: flags for the attachment
nvmem:
description: >
This property is required for PMICs that supports PPG, which is when a
PMIC stores LPG per-channel data and pattern LUT in SDAM modules instead
of in a LUT peripheral. For PMICs, such as PM8350C, per-channel data
and pattern LUT is separated into 2 SDAM modules. In that case, phandles
to both SDAM modules need to be specified.
minItems: 1
maxItems: 2
nvmem-names:
minItems: 1
items:
- const: lpg_chan_sdam
- const: lut_sdam
qcom,pbs:
$ref: /schemas/types.yaml#/definitions/phandle
description: >
Phandle of the Qualcomm Programmable Boot Sequencer node (PBS).
PBS node is used to trigger LPG pattern sequences for PMICs that support
single SDAM PPG.
multi-led:
type: object
$ref: leds-class-multicolor.yaml#
unevaluatedProperties: false
properties:
"#address-cells":
const: 1
"#size-cells":
const: 0
patternProperties:
"^led@[0-9a-f]$":
type: object
$ref: common.yaml#
unevaluatedProperties: false
properties:
reg:
maxItems: 1
required:
- reg
patternProperties:
"^led@[0-9a-f]$":
type: object
$ref: common.yaml#
unevaluatedProperties: false
properties:
reg:
maxItems: 1
required:
- reg
required:
- compatible
additionalProperties: false
allOf:
- if:
properties:
compatible:
contains:
enum:
- qcom,pm660l-lpg
- qcom,pm8150b-lpg
- qcom,pm8150l-lpg
- qcom,pm8916-pwm
- qcom,pm8941-lpg
- qcom,pm8994-lpg
- qcom,pmc8180c-lpg
- qcom,pmi8950-pwm
- qcom,pmi8994-lpg
- qcom,pmi8998-lpg
- qcom,pmk8550-pwm
then:
properties:
nvmem: false
nvmem-names: false
- if:
properties:
compatible:
contains:
const: qcom,pmi632-lpg
then:
properties:
nvmem:
maxItems: 1
nvmem-names:
maxItems: 1
- if:
properties:
compatible:
contains:
enum:
- qcom,pm8350c-pwm
then:
properties:
nvmem:
minItems: 2
nvmem-names:
minItems: 2
examples:
- |
#include <dt-bindings/leds/common.h>
led-controller {
compatible = "qcom,pmi8994-lpg";
#address-cells = <1>;
#size-cells = <0>;
qcom,power-source = <1>;
qcom,dtest = <0 0>,
<0 0>,
<0 0>,
<4 1>;
led@1 {
reg = <1>;
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_INDICATOR;
function-enumerator = <1>;
};
led@2 {
reg = <2>;
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_INDICATOR;
function-enumerator = <0>;
default-state = "on";
};
led@3 {
reg = <3>;
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_INDICATOR;
function-enumerator = <2>;
};
led@4 {
reg = <4>;
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_INDICATOR;
function-enumerator = <3>;
};
};
- |
#include <dt-bindings/leds/common.h>
led-controller {
compatible = "qcom,pmi8994-lpg";
#address-cells = <1>;
#size-cells = <0>;
qcom,power-source = <1>;
multi-led {
color = <LED_COLOR_ID_RGB>;
function = LED_FUNCTION_STATUS;
#address-cells = <1>;
#size-cells = <0>;
led@1 {
reg = <1>;
color = <LED_COLOR_ID_RED>;
};
led@2 {
reg = <2>;
color = <LED_COLOR_ID_GREEN>;
};
led@3 {
reg = <3>;
color = <LED_COLOR_ID_BLUE>;
};
};
};
- |
pwm-controller {
compatible = "qcom,pm8916-pwm";
#pwm-cells = <2>;
};
- |
#include <dt-bindings/leds/common.h>
led-controller {
compatible = "qcom,pmi632-lpg";
#address-cells = <1>;
#size-cells = <0>;
#pwm-cells = <2>;
nvmem-names = "lpg_chan_sdam";
nvmem = <&pmi632_sdam_7>;
qcom,pbs = <&pmi632_pbs_client3>;
led@1 {
reg = <1>;
color = <LED_COLOR_ID_RED>;
label = "red";
};
led@2 {
reg = <2>;
color = <LED_COLOR_ID_GREEN>;
label = "green";
};
led@3 {
reg = <3>;
color = <LED_COLOR_ID_BLUE>;
label = "blue";
};
};
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