From: David Rhodes drhodes@opensource.cirrus.com
Document internal and external boost feature for ASoC CS35L41. For internal boost the following properties are required: - cirrus,boost-peak-milliamp - cirrus,boost-ind-nanohenry - cirrus,boost-cap-microfarad
For external boost, the GPIO1 must be configured as output, so the following properties are required: - cirrus,gpio1-src-select = <1> - cirrus,gpio1-output-enable
Signed-off-by: David Rhodes drhodes@opensource.cirrus.com Signed-off-by: Lucas Tanure tanureal@opensource.cirrus.com Acked-by: Charles Keepax ckeepax@opensource.cirrus.com Reviewed-by: Rob Herring robh@kernel.org Acked-by: Mark Brown broonie@kernel.org --- .../bindings/sound/cirrus,cs35l41.yaml | 44 +++++++++++++++++-- 1 file changed, 41 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml index 3235702ce402..51d815d0c696 100644 --- a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml +++ b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml @@ -75,6 +75,19 @@ properties: maximum: 3 default: 2
+ cirrus,boost-type: + description: + Configures the type of Boost being used. + Internal boost requires boost-peak-milliamp, boost-ind-nanohenry and + boost-cap-microfarad. + External Boost must have GPIO1 as GPIO output. GPIO1 will be set high to + enable boost voltage. + 0 = Internal Boost + 1 = External Boost + $ref: "/schemas/types.yaml#/definitions/uint32" + minimum: 0 + maximum: 1 + cirrus,gpio1-polarity-invert: description: Boolean which specifies whether the GPIO1 @@ -131,9 +144,32 @@ required: - compatible - reg - "#sound-dai-cells" - - cirrus,boost-peak-milliamp - - cirrus,boost-ind-nanohenry - - cirrus,boost-cap-microfarad + +allOf: + - if: + properties: + cirrus,boost-type: + const: 0 + then: + required: + - cirrus,boost-peak-milliamp + - cirrus,boost-ind-nanohenry + - cirrus,boost-cap-microfarad + else: + if: + properties: + cirrus,boost-type: + const: 1 + then: + required: + - cirrus,gpio1-output-enable + - cirrus,gpio1-src-select + properties: + cirrus,boost-peak-milliamp: false + cirrus,boost-ind-nanohenry: false + cirrus,boost-cap-microfarad: false + cirrus,gpio1-src-select: + enum: [1]
additionalProperties: false
@@ -150,6 +186,8 @@ examples: VA-supply = <&dummy_vreg>; VP-supply = <&dummy_vreg>; reset-gpios = <&gpio 110 0>; + + cirrus,boost-type = <0>; cirrus,boost-peak-milliamp = <4500>; cirrus,boost-ind-nanohenry = <1000>; cirrus,boost-cap-microfarad = <15>;