linux-kernel - Re: [PATCH v2] arm64: dts: qcom: sc7280: Use "PP1800

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Message-ID: <CAD=FV=XLsBcbrjb0DwG+Yhia_hk4kcKT2S0_vMT=k3cWxh=NRg@mail.gmail.com>
Date:   Thu, 18 Aug 2022 14:33:47 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Judy Hsiao <judyhsiao@...omium.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Srini Kandagatla <srinivas.kandagatla@...aro.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Jimmy Cheng-Yi Chiang <cychiang@...gle.com>,
        Judy Hsiao <judyhsiao@...gle.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>,
        Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
Subject: Re: [PATCH v2] arm64: dts: qcom: sc7280: Use "PP1800_L2C" as the DMIC
 power source.

Hi,

On Tue, Aug 16, 2022 at 2:36 AM Judy Hsiao <judyhsiao@...omium.org> wrote:
>
> Use "PP1800_L2C" as the DMIC power source to match the hardware
> schematic.
> It fixes the DMIC no sound issue of villager-r1.
>
>
> Co-developed-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
> Signed-off-by: Judy Hsiao <judyhsiao@...omium.org>
> ---
> Changes since V1:
>     -- Update the commit message.
>
>
> This patch depends on:
> arm64: dts: qcom: sc7280: Add herobrine-villager-r1. [1]
>
> [1]
> https://patchwork.kernel.org/patch/12926099/
>
>
>  .../dts/qcom/sc7280-herobrine-villager-r1.dts | 28 +++++++++++++++++++
>  1 file changed, 28 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine-villager-r1.dts b/arch/arm64/boot/dts/qcom/sc7280-herobrine-villager-r1.dts
> index c03b3ae4de50..983defa7c76d 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine-villager-r1.dts
> +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine-villager-r1.dts
> @@ -12,3 +12,31 @@ / {
>         model = "Google Villager (rev1+)";
>         compatible = "google,villager", "qcom,sc7280";
>  };
> +
> +&lpass_va_macro {
> +       vdd-micb-supply = <&pp1800_l2c>;
> +};
> +
> +&sound {
> +       audio-routing =
> +                       "IN1_HPHL", "HPHL_OUT",
> +                       "IN2_HPHR", "HPHR_OUT",
> +                       "AMIC1", "MIC BIAS1",
> +                       "AMIC2", "MIC BIAS2",
> +                       "VA DMIC0", "vdd-micb",
> +                       "VA DMIC1", "vdd-micb",
> +                       "VA DMIC2", "vdd-micb",
> +                       "VA DMIC3", "vdd-micb",
> +                       "TX SWR_ADC0", "ADC1_OUTPUT",
> +                       "TX SWR_ADC1", "ADC2_OUTPUT",
> +                       "TX SWR_ADC2", "ADC3_OUTPUT",
> +                       "TX SWR_DMIC0", "DMIC1_OUTPUT",
> +                       "TX SWR_DMIC1", "DMIC2_OUTPUT",
> +                       "TX SWR_DMIC2", "DMIC3_OUTPUT",
> +                       "TX SWR_DMIC3", "DMIC4_OUTPUT",
> +                       "TX SWR_DMIC4", "DMIC5_OUTPUT",
> +                       "TX SWR_DMIC5", "DMIC6_OUTPUT",
> +                       "TX SWR_DMIC6", "DMIC7_OUTPUT",
> +                       "TX SWR_DMIC7", "DMIC8_OUTPUT";

In v1, Stephen pointed out that the subject and description of your
patch talk about adjusting the supply. However, your patch _also_
adjusts the audio routing.

It feels like the audio routing should be done in a separate patch and
that patch.

-Doug