linux-kernel - Re: [PATCH v3] arm64: dts: qcom: sc7280: Use "PP1800

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Date:   Mon, 22 Aug 2022 11:36:42 -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 v3] arm64: dts: qcom: sc7280: Use "PP1800_L2C" as the DMIC
 power source.

Hi,

On Sun, Aug 21, 2022 at 11:28 PM Judy Hsiao <judyhsiao@...omium.org> wrote:
>
> Use "PP1800_L2C" as the DMIC power source to match the hardware
> schematic by:
>    1. Set MIC bias voltage regulator (vdd-micb-supply) to PP1800_L2C.
>    2. In audio-routing, set VA DMIC01~VA DMIC03 to use the vdd-micb-supply
>       setting.
>
> 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 V2:
>     -- Update the commit message.
> 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";
> +
> +};

nit: there's an extra blank line here. Can you send a v4 to fix?

Other than that this looks OK to me, but I suspect that Bjorn will
have a hard time applying this without help. I think someone who is
keeping track of all the audio patches is going to need to provide a
list (or a sample tree) showing what needs to be applied and in what
order. It would be good to confirm that there aren't any outstanding
issues on any of the patches as well. We really don't want to go
another cycle without getting the audio patches landed.

-Doug