[PATCH 2/2] Documentation: cs35l41: Shared boost properties

[Krzysztof Kozlowski]

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 at collabora.com>
> ---
>  .../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