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| author | Lucas Tanure <lucas.tanure@collabora.com> | 2023-02-23 11:43:24 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-03-06 02:36:44 +0300 |
| commit | 340307d7effd99303fe933cde3b7288f8f3c6677 (patch) | |
| tree | f5e144696481bb4d21ad9c7f41c57a25f3527f38 /Documentation | |
| parent | f5030564938be112183ba3df0cdd6dea3f694c2e (diff) | |
| download | linux-340307d7effd99303fe933cde3b7288f8f3c6677.tar.xz | |
ASoC: dt-bindings: cirrus,cs35l41: Document CS35l41 shared boost
Describe the properties used for shared boost configuration.
Based on David Rhodes shared boost patches.
Signed-off-by: Lucas Tanure <lucas.tanure@collabora.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: David Rhodes <david.rhodes@cirrus.com>
Link: https://lore.kernel.org/r/20230223084324.9076-5-lucas.tanure@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml index 18fb471aa891..14dea1feefc5 100644 --- a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml +++ b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml @@ -85,11 +85,19 @@ properties: boost-cap-microfarad. External Boost must have GPIO1 as GPIO output. GPIO1 will be set high to enable boost voltage. + Shared boost allows two amplifiers to share a single boost circuit by + communicating on the MDSYNC bus. The active amplifier controls the boost + circuit using combined data from both amplifiers. GPIO1 should be + configured for Sync when shared boost is used. Shared boost is not + compatible with External boost. Active amplifier requires + boost-peak-milliamp, boost-ind-nanohenry and boost-cap-microfarad. 0 = Internal Boost 1 = External Boost + 2 = Shared Boost Active + 3 = Shared Boost Passive $ref: /schemas/types.yaml#/definitions/uint32 minimum: 0 - maximum: 1 + maximum: 3 cirrus,gpio1-polarity-invert: description: |