linux-kernel - [PATCH v2 4/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: enable touchscreen

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Date: Sat,  3 Feb 2024 21:11:58 +0200
From: Anton Bambura <jenneron@...tmarketos.org>
To: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 4/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: enable touchscreen

Set regulators, reset gpio and delays according to ACPI tables.

Signed-off-by: Anton Bambura <jenneron@...tmarketos.org>
---
 .../boot/dts/qcom/sc8180x-lenovo-flex-5g.dts  | 30 ++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
index 6ae6cb030b70..5bf6285f905f 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
+++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
@@ -271,6 +271,12 @@ vreg_l3c_1p2: ldo3 {
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 
+		vreg_l4c_3p3: ldo4 {
+			regulator-min-microvolt = <3296000>;
+			regulator-max-microvolt = <3304000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
 		vreg_l10c_3p3: ldo10 {
 			regulator-min-microvolt = <3000000>;
 			regulator-max-microvolt = <3312000>;
@@ -337,6 +343,12 @@ vreg_l10e_2p9: ldo10 {
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 
+		vreg_l12e_1p8: ldo12 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
 		vreg_l16e_3p0: ldo16 {
 			regulator-min-microvolt = <3072000>;
 			regulator-max-microvolt = <3072000>;
@@ -365,11 +377,19 @@ &i2c1 {
 	touchscreen@10 {
 		compatible = "hid-over-i2c";
 		reg = <0x10>;
+
 		hid-descr-addr = <0x1>;
+		reset-gpios = <&tlmm 54 GPIO_ACTIVE_LOW>;
+
+		vdd-supply = <&vreg_l4c_3p3>;
+		vddl-supply = <&vreg_l12e_1p8>;
+
+		post-power-on-delay-ms = <3>;
+		post-reset-deassert-delay-ms = <200>;
 
 		interrupts-extended = <&tlmm 122 IRQ_TYPE_LEVEL_LOW>;
 
-		pinctrl-0 = <&ts_int_default>;
+		pinctrl-0 = <&ts_int_default>, <&ts_reset_default>;
 		pinctrl-names = "default";
 	};
 };
@@ -735,6 +755,14 @@ ts_int_default: ts-int-default-state {
 		drive-strength = <2>;
 	};
 
+	ts_reset_default: ts-reset-default-state {
+		pins = "gpio54";
+		function = "gpio";
+
+		bias-disable;
+		drive-strength = <16>;
+	};
+
 	usbprim_sbu_default: usbprim-sbu-state {
 		oe-n-pins {
 			pins = "gpio152";
-- 
2.42.0