linux-kernel - [PATCH v2 3/4] arm64: dts: qcom: sa8775p: add the GNSS high-speed UART for sa8775p-ride

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Date:   Wed, 15 Feb 2023 16:40:01 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
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>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH v2 3/4] arm64: dts: qcom: sa8775p: add the GNSS high-speed UART for sa8775p-ride

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Add the serial port connected to the GNSS on sa8775p-ride.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 arch/arm64/boot/dts/qcom/sa8775p-ride.dts | 34 +++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/sa8775p.dtsi     | 15 ++++++++++
 2 files changed, 49 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
index d01ca3a9ee37..47cf26ea49e8 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
+++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
@@ -13,6 +13,7 @@ / {
 
 	aliases {
 		serial0 = &uart10;
+		serial1 = &uart12;
 		i2c18 = &i2c18;
 		spi16 = &spi16;
 	};
@@ -66,6 +67,30 @@ qup_i2c18_default: qup-i2c18-state {
 		drive-strength = <2>;
 		bias-pull-up;
 	};
+
+	qup_uart12_cts: qup-uart12-cts-state {
+		pins = "gpio52";
+		function = "qup1_se5";
+		bias-disable;
+	};
+
+	qup_uart12_rts: qup_uart12_rts-state {
+		pins = "gpio53";
+		function = "qup1_se5";
+		bias-pull-down;
+	};
+
+	qup_uart12_tx: qup_uart12_tx-state {
+		pins = "gpio54";
+		function = "qup1_se5";
+		bias-pull-up;
+	};
+
+	qup_uart12_rx: qup_uart12_rx-state {
+		pins = "gpio55";
+		function = "qup1_se5";
+		bias-pull-down;
+	};
 };
 
 &uart10 {
@@ -75,6 +100,15 @@ &uart10 {
 	status = "okay";
 };
 
+&uart12 {
+	pinctrl-0 = <&qup_uart12_cts>,
+		    <&qup_uart12_rts>,
+		    <&qup_uart12_tx>,
+		    <&qup_uart12_rx>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &xo_board_clk {
 	clock-frequency = <38400000>;
 };
diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
index 1abb545ff4f4..8b8931ea739d 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
+++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
@@ -489,6 +489,21 @@ &clk_virt SLAVE_QUP_CORE_1 0>,
 				operating-points-v2 = <&qup_opp_table_100mhz>;
 				status = "disabled";
 			};
+
+			uart12: serial@...000 {
+				compatible = "qcom,geni-uart";
+				reg = <0x0 0xa94000 0x0 0x4000>;
+				interrupts = <GIC_SPI 585 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&gcc GCC_QUPV3_WRAP1_S5_CLK>;
+				clock-names = "se";
+				interconnects = <&clk_virt MASTER_QUP_CORE_1 0
+						 &clk_virt SLAVE_QUP_CORE_1 0>,
+						<&gem_noc MASTER_APPSS_PROC 0
+						 &config_noc SLAVE_QUP_1 0>;
+				interconnect-names = "qup-core", "qup-config";
+				power-domains = <&rpmhpd SA8775P_CX>;
+				status = "disabled";
+			};
 		};
 
 		qupv3_id_2: geniqup@...000 {
-- 
2.37.2