On 07/02/2023 11:40, Lucas Tanure wrote: > Describe the properties used for shared boost > configuration. Use subject prefixes matching the subsystem (which you can get for example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory your patch is touching). > > Signed-off-by: Lucas Tanure <lucas.tanure@xxxxxxxxxxxxx> > --- > .../devicetree/bindings/sound/cirrus,cs35l41.yaml | 11 ++++++++++- > 1 file changed, 10 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml > index 18fb471aa891..6f5f01bec6f1 100644 > --- a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml > +++ b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml > @@ -85,11 +85,20 @@ 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 passive amplifier does not control > + the boost and receives data from the active amplifier. 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 = Reserved How binding can be reserved? For what and why? Drop. 2 is shared active, 3 is shared passive. Best regards, Krzysztof
