linux-kernel - Re: [PATCH v2 1/3] arm64: dts: qcom: sc7280: Add pinmux for I2S speaker and Headset

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Date:   Wed, 9 Feb 2022 19:12:40 +0530
From:   Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
To:     Stephen Boyd <swboyd@...omium.org>, <agross@...nel.org>,
        <bjorn.andersson@...aro.org>, <devicetree@...r.kernel.org>,
        <dianders@...omium.org>, <judyhsiao@...omium.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <robh+dt@...nel.org>, <rohitkr@...eaurora.org>,
        <srinivas.kandagatla@...aro.org>
CC:     Venkata Prasad Potturu <quic_potturu@...cinc.com>
Subject: Re: [PATCH v2 1/3] arm64: dts: qcom: sc7280: Add pinmux for I2S
 speaker and Headset


On 2/9/2022 2:38 AM, Stephen Boyd wrote:
Thanks for your time Stephen!!!
> Quoting Srinivasa Rao Mandadapu (2022-02-08 07:34:12)
>> Add AMP enable node and pinmux for primary and secondary I2S
>> for SC7280 based platforms.
>>
>> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
>> Co-developed-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
>> Signed-off-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
>> ---
>>   arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 40 ++++++++++++++++++++++++++++++++
>>   arch/arm64/boot/dts/qcom/sc7280.dtsi     | 40 ++++++++++++++++++++++++++++++++
>>   2 files changed, 80 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
>> index d623d71..c7d6c46 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
>> @@ -436,6 +436,39 @@
>>                  qcom,drive-strength = <3>;
>>          };
>>   };
> Newline here
Okay. will remove it.
>
>> +&pri_mi2s_data0 {
>> +       drive-strength = <6>;
>> +};
>> +
>> +&pri_mi2s_data1 {
>> +       drive-strength = <6>;
>> +};
>> +
>> +&pri_mi2s_mclk {
>> +       drive-strength = <6>;
>> +};
>> +
>> +&pri_mi2s_sclk {
>> +       drive-strength = <6>;
>> +};
>> +
>> +&pri_mi2s_ws {
>> +       drive-strength = <6>;
>> +};
>> +
>> +&sec_mi2s_data0 {
>> +       drive-strength = <6>;
>> +       bias-disable;
>> +};
>> +
>> +&sec_mi2s_sclk {
>> +       drive-strength = <6>;
>> +       bias-disable;
>> +};
>> +
>> +&sec_mi2s_ws {
>> +       drive-strength = <6>;
>> +};
> Please sort these nodes alphabetically on node name.
Okay.
>
>>   &qspi_cs0 {
>>          bias-disable;
>> @@ -491,6 +524,13 @@
>>   };
>>
>>   &tlmm {
>> +       amp_en: amp-en {
>> +               pins = "gpio63";
>> +               function = "gpio";
>> +               bias-disable;
> Is there an external pull?
I think no external pull. In trogdor mentioned bias-pull-down but you 
suggested to remove it.
>
>> +               drive-strength = <2>;
>> +       };
>> +
>>          nvme_pwren: nvme-pwren {
>>                  function = "gpio";
>>          };
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> index 937c2e0..76e73e9 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> @@ -3461,6 +3461,46 @@
>>                                  };
>>                          };
>>
>> +                       pri_mi2s_data0: pri-mi2s-data0 {
>> +                               pins = "gpio98";
>> +                               function = "mi2s0_data0";
>> +                       };
>> +
>> +                       pri_mi2s_data1: pri-mi2s-data1 {
>> +                               pins = "gpio99";
>> +                               function = "mi2s0_data1";
>> +                       };
>> +
>> +                       pri_mi2s_mclk: pri-mi2s-mclk {
>> +                               pins = "gpio96";
>> +                               function = "pri_mi2s";
>> +                       };
>> +
>> +                       pri_mi2s_sclk: pri-mi2s-sclk {
>> +                               pins = "gpio97";
>> +                               function = "mi2s0_sck";
>> +                       };
>> +
>> +                       pri_mi2s_ws: pri-mi2s-ws {
>> +                               pins = "gpio100";
>> +                               function = "mi2s0_ws";
>> +                       };
>> +
>> +                       sec_mi2s_data0: sec-mi2s-data0 {
>> +                               pins = "gpio107";
>> +                               function = "mi2s1_data0";
>> +                       };
>> +
>> +                       sec_mi2s_sclk: sec-mi2s-sclk {
>> +                               pins = "gpio106";
>> +                               function = "mi2s1_sck";
>> +                       };
>> +
>> +                       sec_mi2s_ws: sec-mi2s-ws {
>> +                               pins = "gpio108";
>> +                               function = "mi2s1_ws";
>> +                       };
> Please sort these nodes alphabetically on node name.
Okay.