linux-kernel - Re: [PATCH v2 3/3] arm64: dts: qcom: sm6125-seine: Enable GPI DMA 0, QUP 0 and I2C SEs

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Message-ID: <2a1ff9e6-2401-0ead-781a-ef92965319d9@linaro.org>
Date:   Sat, 17 Dec 2022 16:20:22 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Marijn Suijten <marijn.suijten@...ainline.org>,
        phone-devel@...r.kernel.org, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Jami Kettunen <jami.kettunen@...ainline.org>,
        Lux Aliaga <they@...t.lgbt>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/3] arm64: dts: qcom: sm6125-seine: Enable GPI DMA 0,
 QUP 0 and I2C SEs



On 17.12.2022 00:34, Marijn Suijten wrote:
> Enable I2C Serial Engines 1, 2 and 3 which are known to have hardware
> connected to them, leaving the rest disabled to save on power.  For
> this, only GPI DMA 0 and QUP 0 need to be enabled, as nothing seems to
> be connected to Serial Engines on GPU DMA 1 / QUP 1.  Beyond this
> downstream only defines a UART console available on Serial Engine 4
> which also resides on QUP 0.
> 
> Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad
>  .../qcom/sm6125-sony-xperia-seine-pdx201.dts  | 29 +++++++++++++++++++
>  1 file changed, 29 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts b/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts
> index 1b9e40d3d269..b1de85d8f1c8 100644
> --- a/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts
> +++ b/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts
> @@ -141,10 +141,35 @@ active-config0 {
>  	};
>  };
>  
> +&gpi_dma0 {
> +	status = "okay";
> +};
> +
>  &hsusb_phy1 {
>  	status = "okay";
>  };
>  
> +&i2c1 {
> +	clock-frequency = <400000>;
> +	status = "okay";
> +
> +	/* NXP PN553 NFC @ 28 */
> +};
> +
> +&i2c2 {
> +	clock-frequency = <400000>;
> +	status = "okay";
> +
> +	/* Samsung touchscreen @ 48 */
> +};
> +
> +&i2c3 {
> +	clock-frequency = <1000000>;
> +	status = "okay";
> +
> +	/* Cirrus Logic CS35L41 boosted audio amplifier @ 40 */
> +};
> +
>  &pm6125_adc {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&camera_flash_therm &emmc_ufs_therm &rf_pa1_therm>;
> @@ -246,6 +271,10 @@ &pon_resin {
>  	linux,code = <KEY_VOLUMEUP>;
>  };
>  
> +&qupv3_id_0 {
> +	status = "okay";
> +};
> +
>  &sdc2_off_state {
>  	sd-cd-pins {
>  		pins = "gpio98";