Re: [PATCH v1 08/10] arm64: dts: qcom: qrb4210-rb2: enable wsa881x amplifier

["Alexey Klimov" <alexey.klimov@xxxxxxxxxx>]

On Fri Nov 1, 2024 at 8:14 AM GMT, Krzysztof Kozlowski wrote:
> On Fri, Nov 01, 2024 at 05:31:52AM +0000, Alexey Klimov wrote:
> > One WSA881X amplifier is connected on QRB4210 RB2 board
> > hence only mono speaker is supported. This amplifier is set
> > to work in analog mode only. Also add required powerdown
> > pins/gpios.
> > 
> > Cc: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> > Signed-off-by: Alexey Klimov <alexey.klimov@xxxxxxxxxx>
> > ---
> >  arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 45 ++++++++++++++++++++++++
> >  1 file changed, 45 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> > index fc71f5930688..76b9ae1b0ebc 100644
> > --- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> > +++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> > @@ -63,6 +63,16 @@ hdmi_con: endpoint {

[..]

> > +	wsa_en_sleep: wsa-en-sleep-state {
> > +		pins = "gpio106";
> > +		function = "gpio";
> > +		drive-strength = <2>;
> > +		bias-pull-down;
> > +		input-enable;
>
> Are you sure this passes dtbs_check? I think this was not allowed since
> 1.5 years.

I guess you were referring to thing that input-enable is not allowed
and output-disable must be used instead introduced by:
c4a48b0df8bf dt-bindings: pinctrl: qcom: tlmm should use output-disable, not input-enable

Noted.
This sleep state seems to be unused hence I will remove it.

Also, I am going to use Konrad's suggestion about i2c gpio for now. Hope it
is okay.

Thanks,
Alexey