Commit d409e44d authored by Konrad Dybcio's avatar Konrad Dybcio Committed by Bjorn Andersson
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arm64: dts: qcom: sm8450-nagara: Add Samsung touchscreen 



Add device node and required pinctrl settings (as well as a fixup for
an existing one, whoops!) to support the Samsung Electronics
touchscreen on Nagara devices.

Signed-off-by: default avatarKonrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221114095654.34561-4-konrad.dybcio@linaro.org
parent 7d54cdf5

arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara.dtsi

+25 −2
Original line number Diff line number Diff line
@@ -435,7 +435,22 @@ 
	status = "okay";

};



/* I2C4 is used, it hosts a Samsung touchscreen, but GPI DMA is broken.. */

&i2c4 {

	clock-frequency = <400000>;

	status = "okay";



	touchscreen@48 {

		compatible = "samsung,s6sy761";

		reg = <0x48>;

		interrupt-parent = <&tlmm>;

		interrupts = <21 0x2008>;

		vdd-supply = <&pm8350c_l2>;

		avdd-supply = <&pm8350c_l3>;



		pinctrl-names = "default";

		pinctrl-0 = <&ts_reset_default &ts_int_default>;

	};

};



&i2c5 {

	clock-frequency = <400000>;
@@ -566,8 +581,16 @@ 
&tlmm {

	gpio-reserved-ranges = <28 4>;



	ts_reset_default: ts-reset-default-state {

		pins = "gpio20";

		function = "gpio";

		drive-strength = <2>;

		bias-disable;

		output-high;

	};



	ts_int_default: ts-int-default-state {

		pins = "gpio23";

		pins = "gpio21";

		function = "gpio";

		drive-strength = <2>;

		bias-disable;