linux-kernel - [PATCH 5/7] arm64: dts: qcom: msm8916-samsung-fortuna: Add touchscreen

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Date:   Thu, 22 Jun 2023 00:04:37 +0000
From:   "Lin, Meng-Bo" <linmengbo0689@...tonmail.com>
To:     linux-kernel@...r.kernel.org
Cc:     Andy Gross <agross@...nel.org>,
        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>,
        Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
        Stephan Gerhold <stephan@...hold.net>,
        Nikita Travkin <nikita@...n.ru>, soc@...nel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Joe Mason <buddyjojo06@...look.com>,
        "Lin, Meng-Bo" <linmengbo0689@...tonmail.com>
Subject: [PATCH 5/7] arm64: dts: qcom: msm8916-samsung-fortuna: Add touchscreen

From: Joe Mason <buddyjojo06@...look.com>

Like msm8916-samsung-a3u-eur, the Grand Prime uses a Zinitix BT541
touchscreen. Add it together with the necessary fixed-regulator to the
device tree.

Signed-off-by: Joe Mason <buddyjojo06@...look.com>
Signed-off-by: Lin, Meng-Bo <linmengbo0689@...tonmail.com>
---
 .../qcom/msm8916-samsung-fortuna-common.dtsi  | 50 +++++++++++++++++++
 .../qcom/msm8916-samsung-rossa-common.dtsi    |  7 +++
 2 files changed, 57 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi
index ca147310c27a..6d9f89446105 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi
@@ -64,6 +64,19 @@ reg_motor_vdd: regulator-motor-vdd {
 		pinctrl-0 = <&motor_en_default>;
 		pinctrl-names = "default";
 	};
+
+	reg_vdd_tsp_a: regulator-vdd-tsp-a {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_tsp_a";
+		regulator-min-microvolt = <3000000>;
+		regulator-max-microvolt = <3000000>;
+
+		gpio = <&tlmm 73 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&tsp_en_default>;
+		pinctrl-names = "default";
+	};
 };
 
 &blsp_i2c1 {
@@ -94,6 +107,29 @@ battery@35 {
 	};
 };
 
+&blsp_i2c5 {
+	status = "okay";
+
+	touchscreen@20 {
+		compatible = "zinitix,bt541";
+		reg = <0x20>;
+
+		interrupt-parent = <&tlmm>;
+		interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+
+		touchscreen-size-x = <540>;
+		touchscreen-size-y = <960>;
+
+		vcca-supply = <&reg_vdd_tsp_a>;
+		vdd-supply = <&pm8916_l6>;
+
+		pinctrl-0 = <&tsp_int_default>;
+		pinctrl-names = "default";
+
+		linux,keycodes = <KEY_APPSELECT KEY_BACK>;
+	};
+};
+
 &blsp_uart2 {
 	status = "okay";
 };
@@ -176,4 +212,18 @@ sdc2_cd_default: sdc2-cd-default-state {
 		drive-strength = <2>;
 		bias-disable;
 	};
+
+	tsp_en_default: tsp-en-default-state {
+		pins = "gpio73";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	tsp_int_default: tsp-int-default-state {
+		pins = "gpio13";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
 };
diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi
index 5b012dc92e0e..242cb61e55fd 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi
@@ -15,3 +15,10 @@ muic: extcon@14 {
 		pinctrl-names = "default";
 	};
 };
+
+&blsp_i2c5 {
+	status = "disabled";
+
+	/* Touchscreen varies depending on model variant */
+	/delete-node/ touchscreen@20;
+};
-- 
2.39.2