[PATCH] arm64: dts: qcom: Add wakeup delay for adau codec

[PATCH] arm64: dts: qcom: Add wakeup delay for adau codec

[Srinivasa Rao Mandadapu]

Add wakeup delay for fixing PoP noise during capture begin.

Signed-off-by: Judy Hsiao <judyhsiao@chromium.org>
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
index 4c6e433c8226..3eb8550da1fc 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
@@ -23,6 +23,7 @@ / {
 	adau7002: audio-codec-1 {
 		compatible = "adi,adau7002";
 		IOVDD-supply = <&pp1800_l15a>;
+		wakeup-delay-ms = <15>;
 		#sound-dai-cells = <0>;
 	};
 };
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] arm64: dts: qcom: Add wakeup delay for adau codec

[Stephen Boyd]

Quoting Srinivasa Rao Mandadapu (2021-05-13 05:24:29)
> Add wakeup delay for fixing PoP noise during capture begin.
>
> Signed-off-by: Judy Hsiao <judyhsiao@chromium.org>
> Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
> ---
>  arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
> index 4c6e433c8226..3eb8550da1fc 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
> @@ -23,6 +23,7 @@ / {
>         adau7002: audio-codec-1 {
>                 compatible = "adi,adau7002";
>                 IOVDD-supply = <&pp1800_l15a>;
> +               wakeup-delay-ms = <15>;

Is this part of the binding?

Re: [PATCH] arm64: dts: qcom: Add wakeup delay for adau codec

[Doug Anderson]

Hi,


On Mon, May 17, 2021 at 3:44 PM Stephen Boyd <swboyd@chromium.org> wrote:
>
> Quoting Srinivasa Rao Mandadapu (2021-05-13 05:24:29)
> > Add wakeup delay for fixing PoP noise during capture begin.
> >
> > Signed-off-by: Judy Hsiao <judyhsiao@chromium.org>
> > Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
> > ---
> >  arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
> > index 4c6e433c8226..3eb8550da1fc 100644
> > --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
> > @@ -23,6 +23,7 @@ / {
> >         adau7002: audio-codec-1 {
> >                 compatible = "adi,adau7002";
> >                 IOVDD-supply = <&pp1800_l15a>;
> > +               wakeup-delay-ms = <15>;
>
> Is this part of the binding?

It doesn't seem to be, but it's supported by the code. It's also in
the generic "dmic" bindings. The bindings are pre-yaml. Seems like
someone needs to take charge and clean those up, but I'm not sure we
need to block this patch on it?

Though I'm not an expert on audio stuff, assuming that this works OK
I'm fine with:

Reviewed-by: Douglas Anderson <dianders@chromium.org>

-Doug