On 27.02.2024 15:27, Krzysztof Kozlowski wrote:
> Each pair of WSA8845 speakers share the powerdown SD_N GPIO, thus this
> GPIO is specified twice in each WSA8845 device node. Such DTS was added
> hoping non-exclusive GPIO usage would be accepted, but it turned out
> otherwise: it is not supported by the Linux kernel.
>
> Linux kernel however supports sharing reset GPIOs, when used bia the
> reset controller framework as implemented in commit 26c8a435fce6 ("ASoC:
> dt-bindings: qcom,wsa8840: Add reset-gpios for shared line") and
> commit c721f189e89c ("reset: Instantiate reset GPIO controller for
> shared reset-gpios").
>
> Convert the property with shutdown GPIO to "reset-gpios" to use
> mentioned Linux kernel feature. This allows to bring all four speakers
> out of reset.
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Konrad
