This adds the binding document describing the three hardware blocks related to the Light Pulse Generator found in a wide range of Qualcomm PMICs.
Signed-off-by: Bjorn Andersson <bjorn.anders...@linaro.org> --- Changes since v4: - Dropped quotes around power-source - Moved "multi-led" to properties - Corrected tab-indented line in example .../bindings/leds/leds-qcom-lpg.yaml | 170 ++++++++++++++++++ 1 file changed, 170 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml diff --git a/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml b/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml new file mode 100644 index 000000000000..5ccf0f3d8f1b --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml @@ -0,0 +1,170 @@ +# 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 <bjorn.anders...@linaro.org> + +description: > + The Qualcomm Light Pulse Generator consists of three different hardware blocks; + a ramp generator with lookup table, the light pulse generator and a three + channel current sink. These blocks are found in a wide range of Qualcomm PMICs. + +properties: + compatible: + enum: + - qcom,pm8916-pwm + - qcom,pm8941-lpg + - qcom,pm8994-lpg + - qcom,pmi8994-lpg + - qcom,pmi8998-lpg + + "#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 + + multi-led: + type: object + $ref: leds-class-multicolor.yaml# + properties: + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + "^led@[0-9a-f]$": + type: object + $ref: common.yaml# + + properties: + "qcom,dtest": + $ref: /schemas/types.yaml#definitions/uint32-array + description: > + configures the output into an internal test line of the pmic. Specified + by a list of u32 pairs, one pair per channel, where each pair denotes the + test line to drive and the second configures how the value should be + outputed, as defined in the datasheet + minItems: 2 + maxItems: 2 + + required: + - reg + +patternProperties: + "^led@[0-9a-f]$": + type: object + $ref: common.yaml# + properties: + "qcom,dtest": + $ref: /schemas/types.yaml#definitions/uint32-array + description: > + configures the output into an internal test line of the pmic. Specified + by a list of u32 pairs, one pair per channel, where each pair denotes the + test line to drive and the second configures how the value should be + outputed, as defined in the datasheet + minItems: 2 + maxItems: 2 + + required: + - reg + +required: + - compatible + +additionalProperties: false + +examples: + - | + #include <dt-bindings/leds/common.h> + + lpg { + compatible = "qcom,pmi8994-lpg"; + + #address-cells = <1>; + #size-cells = <0>; + + qcom,power-source = <1>; + + led@1 { + reg = <1>; + label = "green:user1"; + }; + + led@2 { + reg = <2>; + label = "green:user0"; + default-state = "on"; + }; + + led@3 { + reg = <3>; + label = "green:user2"; + }; + + led@4 { + reg = <4>; + label = "green:user3"; + + qcom,dtest = <4 1>; + }; + }; + - | + #include <dt-bindings/leds/common.h> + + lpg { + compatible = "qcom,pmi8994-lpg"; + + #address-cells = <1>; + #size-cells = <0>; + + qcom,power-source = <1>; + + multi-led { + color = <LED_COLOR_ID_MULTI>; + label = "rgb:notification"; + + #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>; + }; + }; + }; + - | + lpg { + compatible = "qcom,pm8916-pwm"; + #pwm-cells = <2>; + }; +... -- 2.28.0
