arm64: dts: qcom: sa8775p-ride: enable the GNSS UART port

Enable the high-speed UART port connected to the GNSS controller on the
sa8775p-adp development board.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230309103752.173541-9-brgl@bgdev.pl

arch/arm64/boot/dts/qcom/sa8775p-ride.dts

@@ -13,6 +13,7 @@ / {
 
 	aliases {
 		serial0 = &uart10;
+		serial1 = &uart12;
 		i2c18 = &i2c18;
 		spi16 = &spi16;
 	};
@@ -66,6 +67,32 @@ qup_i2c18_default: qup-i2c18-state {
 		drive-strength = <2>;
 		bias-pull-up;
 	};
+
+	qup_uart12_default: qup-uart12-state {
+		qup_uart12_cts: qup-uart12-cts-pins {
+			pins = "gpio52";
+			function = "qup1_se5";
+			bias-disable;
+		};
+
+		qup_uart12_rts: qup-uart12-rts-pins {
+			pins = "gpio53";
+			function = "qup1_se5";
+			bias-pull-down;
+		};
+
+		qup_uart12_tx: qup-uart12-tx-pins {
+			pins = "gpio54";
+			function = "qup1_se5";
+			bias-pull-up;
+		};
+
+		qup_uart12_rx: qup-uart12-rx-pins {
+			pins = "gpio55";
+			function = "qup1_se5";
+			bias-pull-down;
+		};
+	};
 };
 
 &uart10 {
@@ -75,6 +102,12 @@ &uart10 {
 	status = "okay";
 };
 
+&uart12 {
+	pinctrl-0 = <&qup_uart12_default>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &xo_board_clk {
 	clock-frequency = <38400000>;
 };