linux-kernel - Re: [PATCH 09/10] arm64: dts: qcom: sm6350-lena: Configure Samsung touchscreen

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Message-ID: <c19fc949-e75e-1c38-3bea-02c7afcf2178@somainline.org>
Date:   Mon, 31 Oct 2022 22:14:46 +0100
From:   Konrad Dybcio <konrad.dybcio@...ainline.org>
To:     Marijn Suijten <marijn.suijten@...ainline.org>,
        phone-devel@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Jami Kettunen <jami.kettunen@...ainline.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Luca Weiss <luca@...tu.xyz>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/10] arm64: dts: qcom: sm6350-lena: Configure Samsung
 touchscreen



On 30.10.2022 08:32, Marijn Suijten wrote:
> Use the generic samsung,s6sy761 touchscreen driver for this device,
> together with a few pins and regulators to power it up correctly.
> 
> Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...ainline.org>

Konrad
>  .../qcom/sm6350-sony-xperia-lena-pdx213.dts   | 41 +++++++++++++++++++
>  1 file changed, 41 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts b/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
> index 6eb1d4e5e60f..20f35623d1ef 100644
> --- a/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
> +++ b/arch/arm64/boot/dts/qcom/sm6350-sony-xperia-lena-pdx213.dts
> @@ -43,6 +43,15 @@ key-volume-down {
>  			gpios = <&pm6350_gpios 2 GPIO_ACTIVE_LOW>;
>  		};
>  	};
> +
> +	touch_en_vreg: touch-en-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "touch_en_vreg";
> +		gpio = <&tlmm 10 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +
> +		vin-supply = <&pm6350_l6>;
> +	};
>  };
>  
>  &apps_rsc {
> @@ -280,6 +289,23 @@ &gpi_dma1 {
>  	status = "okay";
>  };
>  
> +&i2c8 {
> +	clock-frequency = <400000>;
> +	status = "okay";
> +
> +	touchscreen@48 {
> +		compatible = "samsung,s6sy761";
> +		reg = <0x48>;
> +		interrupt-parent = <&tlmm>;
> +		interrupts = <22 0x2008>;
> +		vdd-supply = <&pm6350_l11>;
> +		avdd-supply = <&touch_en_vreg>;
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&ts_int_default &ts_active>;
> +	};
> +};
> +
>  &pm6350_gpios {
>  	gpio_keys_state: gpio-keys-state {
>  		key-volume-down-pins {
> @@ -334,6 +360,21 @@ &sdhc_2 {
>  
>  &tlmm {
>  	gpio-reserved-ranges = <13 4>, <45 2>, <56 2>;
> +
> +	ts_active: ts-active-state {
> +		pins = "gpio21";
> +		function = "gpio";
> +		drive-strength = <8>;
> +		bias-pull-up;
> +	};
> +
> +	ts_int_default: ts-int-default-state {
> +		pins = "gpio22";
> +		function = "gpio";
> +		drive-strength = <2>;
> +		bias-disable;
> +		input-enable;
> +	};
>  };
>  
>  &usb_1 {