linux-kernel - [PATCH 7/9] arm64: dts: qcom: kitakami: Add Synaptics touchscreen

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Date:   Tue, 28 Jul 2020 14:00:46 +0200
From:   Konrad Dybcio <konradybcio@...il.com>
To:     konradybcio@...il.com
Cc:     lauren.kelly@....com, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: [PATCH 7/9] arm64: dts: qcom: kitakami: Add Synaptics touchscreen

All Kitakami devices seem to use the Synaptics RMI4
touchscreen attached to the same i2c bus. Configure and
enable it.

Signed-off-by: Konrad Dybcio <konradybcio@...il.com>
---
 .../qcom/msm8994-sony-xperia-kitakami.dtsi    | 45 ++++++++++++++++++-
 1 file changed, 44 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi b/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
index 4032b7478f04..696cd39852f4 100644
--- a/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
@@ -138,7 +138,34 @@ &blsp_i2c5 {
 &blsp_i2c6 {
 	status = "okay";
 
-	/* Synaptics touchscreen */
+	rmi4-i2c-dev@2c {
+		compatible = "syna,rmi4-i2c";
+		reg = <0x2c>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		interrupt-parent = <&tlmm>;
+		interrupts = <42 IRQ_TYPE_EDGE_FALLING>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&ts_int_active &ts_reset_active>;
+
+		vdd-supply = <&pm8994_l22>;
+		vio-supply = <&pm8994_s4>;
+
+		syna,reset-delay-ms = <220>;
+		syna,startup-delay-ms = <220>;
+
+		rmi4-f01@1 {
+			reg = <0x01>;
+			syna,nosleep-mode = <1>;
+		};
+
+		rmi4-f11@11 {
+			reg = <0x11>;
+			syna,sensor-type = <1>;
+		};
+	};
 };
 
 &blsp1_uart2 {
@@ -233,3 +260,19 @@ &sdhc1 {
 	 * vqmmc-supply = <&pm8994_s4>;
 	 */
 };
+
+&tlmm {
+	ts_int_active: ts-int-active {
+		pins = "gpio42";
+		drive-strength = <2>;
+		bias-disable;
+		input-enable;
+	};
+
+	ts_reset_active: ts-reset-active {
+		pins = "gpio109";
+		drive-strength = <2>;
+		bias-disable;
+		output-low;
+	};
+};
-- 
2.27.0