linux-kernel - Re: [PATCH v7 1/2] arm64: dts: qcom: sc7280: Add pinmux for I2S speaker and Headset

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Date:   Mon, 11 Apr 2022 12:05:38 -0700
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
Cc:     agross@...nel.org, bjorn.andersson@...aro.org, robh+dt@...nel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_rohkumar@...cinc.com,
        srinivas.kandagatla@...aro.org, dianders@...omium.org,
        swboyd@...omium.org, judyhsiao@...omium.org,
        Venkata Prasad Potturu <quic_potturu@...cinc.com>
Subject: Re: [PATCH v7 1/2] arm64: dts: qcom: sc7280: Add pinmux for I2S
 speaker and Headset

On Mon, Apr 11, 2022 at 07:23:03PM +0530, Srinivasa Rao Mandadapu wrote:
> Add pinmux nodes 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 | 14 +++++++++++
>  arch/arm64/boot/dts/qcom/sc7280.dtsi     | 41 ++++++++++++++++++++++++++++++++
>  2 files changed, 55 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> index ecbf2b8..4ba2274 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> @@ -462,6 +462,20 @@
>  	drive-strength = <10>;
>  };
>  
> +&mi2s1_data0 {
> +	drive-strength = <6>;
> +	bias-disable;
> +};
> +
> +&mi2s1_sclk {
> +	drive-strength = <6>;
> +	bias-disable;
> +};
> +
> +&mi2s1_ws {
> +	drive-strength = <6>;
> +};
> +

With the new names the nodes should be inserted between 'dp_hot_plug_det' and
'pm7325_gpios'.

>  &tlmm {
>  	bt_en: bt-en {
>  		pins = "gpio85";
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index f0b64be..8099c80 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -3527,6 +3527,31 @@
>  				function = "pcie1_clkreqn";
>  			};
>  
> +			mi2s0_data0: mi2s0-data0 {

Similar as above, the new nodes should be inserted between
'edp_hot_plug_det' and 'pcie1_clkreq_n'.

> +				pins = "gpio98";
> +				function = "mi2s0_data0";
> +			};
> +
> +			mi2s0_data1: mi2s0-data1 {
> +				pins = "gpio99";
> +				function = "mi2s0_data1";
> +			};
> +
> +			mi2s0_mclk: mi2s0-mclk {
> +				pins = "gpio96";
> +				function = "pri_mi2s";
> +			};
> +
> +			mi2s0_sclk: mi2s0-sclk {
> +				pins = "gpio97";
> +				function = "mi2s0_sck";
> +			};
> +
> +			mi2s0_ws: mi2s0-ws {
> +				pins = "gpio100";
> +				function = "mi2s0_ws";
> +			};
> +
>  			qspi_clk: qspi-clk {
>  				pins = "gpio14";
>  				function = "qspi_clk";
> @@ -4261,6 +4286,22 @@
>  				drive-strength = <2>;
>  				bias-bus-hold;
>  			};
> +
> +			mi2s1_data0: mi2s1-data0 {

see above

> +				pins = "gpio107";
> +				function = "mi2s1_data0";
> +			};
> +
> +			mi2s1_sclk: mi2s1-sclk {
> +				pins = "gpio106";
> +				function = "mi2s1_sck";
> +			};
> +
> +			mi2s1_ws: mi2s1-ws {
> +				pins = "gpio108";
> +				function = "mi2s1_ws";
> +			};