linux-kernel - [PATCH 4/4] arm64: dts: qcom: sc7280-crd: Add Touchscreen and touchpad support

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Message-Id: <1637650813-16654-5-git-send-email-rnayak@codeaurora.org>
Date:   Tue, 23 Nov 2021 12:30:13 +0530
From:   Rajendra Nayak <rnayak@...eaurora.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org, robh+dt@...nel.org
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, sboyd@...eaurora.org,
        dianders@...omium.org, mka@...omium.org, kgodara@...eaurora.org,
        Rajendra Nayak <rnayak@...eaurora.org>
Subject: [PATCH 4/4] arm64: dts: qcom: sc7280-crd: Add Touchscreen and touchpad support

From: Kshitiz Godara <kgodara@...eaurora.org>

Add Touchscreen and touchpad hid-over-i2c node

Signed-off-by: Kshitiz Godara <kgodara@...eaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7280-crd.dts | 63 +++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-crd.dts b/arch/arm64/boot/dts/qcom/sc7280-crd.dts
index 8c2aee6..bef3037 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-crd.dts
+++ b/arch/arm64/boot/dts/qcom/sc7280-crd.dts
@@ -23,6 +23,47 @@
 	};
 };
 
+ap_tp_i2c: &i2c0 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	trackpad: trackpad@15 {
+		compatible = "hid-over-i2c";
+		reg = <0x15>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&tp_int_odl>;
+
+		interrupt-parent = <&tlmm>;
+		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+
+		post-power-on-delay-ms = <20>;
+		hid-descr-addr = <0x0001>;
+		vdd-supply = <&vreg_l18b_1p8>;
+
+		wakeup-source;
+	};
+};
+
+ap_ts_pen_1v8: &i2c13 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	ap_ts: touchscreen@5c {
+		compatible = "hid-over-i2c";
+		reg = <0x5C>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&ts_int_l>, <&ts_reset_l>;
+
+		interrupt-parent = <&tlmm>;
+		interrupts = <55 IRQ_TYPE_LEVEL_LOW>;
+
+		post-power-on-delay-ms = <500>;
+		hid-descr-addr = <0x0000>;
+
+		vdd-supply = <&vreg_l19b_1p8>;
+	};
+};
+
 &nvme_pwren {
 	pins = "gpio51";
 };
@@ -30,3 +71,25 @@
 &nvme_3v3_regulator {
 	gpio = <&tlmm 51 GPIO_ACTIVE_HIGH>;
 };
+
+&tlmm {
+	tp_int_odl: tp-int-odl {
+		pins = "gpio7";
+		function = "gpio";
+		input-enable;
+		bias-disable;
+	};
+
+	ts_int_l: ts-int-l {
+		pins = "gpio55";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	ts_reset_l: ts-reset-l {
+		pins = "gpio54";
+		function = "gpio";
+		bias-disable;
+		drive-strength = <2>;
+	};
+};
-- 
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