linux-kernel - [PATCH] ARM: dts: apq8064: add support to gsbi4 uart

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Message-Id: <20230812155234.338016-1-david@ixit.cz>
Date:   Sat, 12 Aug 2023 17:52:34 +0200
From:   David Heidelberg <david@...t.cz>
To:     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>
Cc:     David Heidelberg <david@...t.cz>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: dts: apq8064: add support to gsbi4 uart

This patch adds support to gsbi4 uart which is used in LG Mako.

Signed-off-by: David Heidelberg <david@...t.cz>
---
 arch/arm/boot/dts/qcom/qcom-apq8064-pins.dtsi | 16 ++++++++++++++++
 arch/arm/boot/dts/qcom/qcom-apq8064.dtsi      | 12 ++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/arch/arm/boot/dts/qcom/qcom-apq8064-pins.dtsi b/arch/arm/boot/dts/qcom/qcom-apq8064-pins.dtsi
index 1f15186dd710..a939b7336506 100644
--- a/arch/arm/boot/dts/qcom/qcom-apq8064-pins.dtsi
+++ b/arch/arm/boot/dts/qcom/qcom-apq8064-pins.dtsi
@@ -233,6 +233,22 @@ pinconf {
 		};
 	};
 
+	gsbi4_uart_pin_a: gsbi4-uart-pin-active {
+		rx {
+			pins = "gpio11";
+			function = "gsbi4";
+			drive-strength = <2>;
+			bias-disable;
+		};
+
+		tx {
+			pins = "gpio10";
+			function = "gsbi4";
+			drive-strength = <4>;
+			bias-disable;
+		};
+	};
+
 	gsbi6_uart_2pins: gsbi6_uart_2pins {
 		mux {
 			pins = "gpio14", "gpio15";
diff --git a/arch/arm/boot/dts/qcom/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom/qcom-apq8064.dtsi
index 2ab69dd69862..870205028f5c 100644
--- a/arch/arm/boot/dts/qcom/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom/qcom-apq8064.dtsi
@@ -547,6 +547,18 @@ gsbi4: gsbi@...00000 {
 			#size-cells = <1>;
 			ranges;
 
+			gsbi4_serial: serial@...40000 {
+				compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm";
+				reg = <0x16340000 0x100>,
+				      <0x16300000 0x3>;
+				interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
+				pinctrl-0 = <&gsbi4_uart_pin_a>;
+				pinctrl-names = "default";
+				clocks = <&gcc GSBI4_UART_CLK>, <&gcc GSBI4_H_CLK>;
+				clock-names = "core", "iface";
+				status = "disabled";
+			};
+
 			gsbi4_i2c: i2c@...80000 {
 				compatible = "qcom,i2c-qup-v1.1.1";
 				pinctrl-0 = <&i2c4_pins>;
-- 
2.40.1