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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: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221114095654.34561-4-konrad.dybcio@linaro.org
This commit is contained in:
Konrad Dybcio 2022-11-14 10:56:54 +01:00 committed by Bjorn Andersson
parent 7d54cdf564
commit d409e44d2e
1 changed files with 25 additions and 2 deletions
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27
arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara.dtsi
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@ -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;