[v2,1/3] arm64: dts: qcom: sdm845: commonize bluetooth UART pinmux

diff --git a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
index b5eb8f7eca1d..923d5d681daa 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
@@ -860,6 +860,8 @@  i2c_tunnel: i2c-tunnel {
 &uart6 {
 	status = "okay";
 
+	pinctrl-0 = <&qup_uart6_4pin>;
+
 	bluetooth: wcn3990-bt {
 		compatible = "qcom,wcn3990-bt";
 		vddio-supply = <&src_pp1800_s4a>;
@@ -1079,41 +1081,6 @@  pinconf {
 	};
 };
 
-&qup_uart6_default {
-	/* Change pinmux to all 4 pins since CTS and RTS are connected */
-	pinmux {
-		pins = "gpio45", "gpio46",
-		       "gpio47", "gpio48";
-	};
-
-	pinconf-cts {
-		/*
-		 * Configure a pull-down on 45 (CTS) to match the pull of
-		 * the Bluetooth module.
-		 */
-		pins = "gpio45";
-		bias-pull-down;
-	};
-
-	pinconf-rts-tx {
-		/* We'll drive 46 (RTS) and 47 (TX), so no pull */
-		pins = "gpio46", "gpio47";
-		drive-strength = <2>;
-		bias-disable;
-	};
-
-	pinconf-rx {
-		/*
-		 * Configure a pull-up on 48 (RX). This is needed to avoid
-		 * garbage data when the TX pin of the Bluetooth module is
-		 * in tri-state (module powered off or not driving the
-		 * signal yet).
-		 */
-		pins = "gpio48";
-		bias-pull-up;
-	};
-};
-
 &qup_uart9_default {
 	pinconf-tx {
 		pins = "gpio4";
diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
index c6e2c571b452..f87b1e2025b6 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
@@ -986,6 +986,8 @@  &uart3 {
 &uart6 {
 	status = "okay";
 
+	pinctrl-0 = <&qup_uart6_4pin>;
+
 	bluetooth {
 		compatible = "qcom,wcn3990-bt";
 
@@ -1141,29 +1143,6 @@  pinconf {
 	};
 };
 
-&qup_uart6_default {
-	pinmux {
-		pins = "gpio45", "gpio46", "gpio47", "gpio48";
-		function = "qup6";
-	};
-
-	cts {
-		pins = "gpio45";
-		bias-disable;
-	};
-
-	rts-tx {
-		pins = "gpio46", "gpio47";
-		drive-strength = <2>;
-		bias-disable;
-	};
-
-	rx {
-		pins = "gpio48";
-		bias-pull-up;
-	};
-};
-
 &qup_uart9_default {
 	pinconf-tx {
 		pins = "gpio4";
diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
index 392461c29e76..02ec0fa4e5f0 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
@@ -500,35 +500,11 @@  pinconf-rx {
 	};
 };
 
-/*
- * Prevent garbage data on bluetooth UART lines
- */
-&qup_uart6_default {
-	pinmux {
-		pins = "gpio45", "gpio46", "gpio47", "gpio48";
-		function = "qup6";
-	};
-
-	cts {
-		pins = "gpio45";
-		bias-pull-down;
-	};
-
-	rts-tx {
-		pins = "gpio46", "gpio47";
-		drive-strength = <2>;
-		bias-disable;
-	};
-
-	rx {
-		pins = "gpio48";
-		bias-pull-up;
-	};
-};
-
 &uart6 {
 	status = "okay";
 
+	pinctrl-0 = <&qup_uart6_4pin>;
+
 	bluetooth {
 		compatible = "qcom,wcn3990-bt";
 
diff --git a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium.dts b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium.dts
index 82c27f90d300..5dde27b7daf2 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium.dts
@@ -481,6 +481,8 @@  wcd_intr_default: wcd_intr_default {
 &uart6 {
 	status = "okay";
 
+	pinctrl-0 = <&qup_uart6_4pin>;
+
 	bluetooth {
 		compatible = "qcom,wcn3990-bt";
 
@@ -567,28 +569,3 @@  &wifi {
 	vdd-3.3-ch0-supply = <&vreg_l25a_3p3>;
 	vdd-3.3-ch1-supply = <&vreg_l23a_3p3>;
 };
-
-/* PINCTRL - additions to nodes defined in sdm845.dtsi */
-
-&qup_uart6_default {
-	pinmux {
-		pins = "gpio45", "gpio46", "gpio47", "gpio48";
-		function = "qup6";
-	};
-
-	cts {
-		pins = "gpio45";
-		bias-disable;
-	};
-
-	rts-tx {
-		pins = "gpio46", "gpio47";
-		drive-strength = <2>;
-		bias-disable;
-	};
-
-	rx {
-		pins = "gpio48";
-		bias-pull-up;
-	};
-};
diff --git a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-polaris.dts b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-polaris.dts
index 7747081b9887..c8b439dcbca4 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-polaris.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-polaris.dts
@@ -639,6 +639,8 @@  wcd_intr_default: wcd-intr-default {
 &uart6 {
 	status = "okay";
 
+	pinctrl-0 = <&qup_uart6_4pin>;
+
 	bluetooth {
 		compatible = "qcom,wcn3990-bt";
 
@@ -735,28 +737,3 @@  &wifi {
 	qcom,snoc-host-cap-skip-quirk;
 	status = "okay";
 };
-
-/* PINCTRL - additions to nodes defined in sdm845.dtsi */
-
-&qup_uart6_default {
-	pinmux {
-		 pins = "gpio45", "gpio46", "gpio47", "gpio48";
-		 function = "qup6";
-	};
-
-	cts {
-		pins = "gpio45";
-		bias-disable;
-	};
-
-	rts-tx {
-		pins = "gpio46", "gpio47";
-		drive-strength = <2>;
-		bias-disable;
-	};
-
-	rx {
-		pins = "gpio48";
-		bias-pull-up;
-	};
-};
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index f0e286715d1b..55de40bea684 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -2971,6 +2971,28 @@  pinmux {
 				};
 			};
 
+			qup_uart6_4pin: qup-uart6-4pin-state {
+
+				cts-pins {
+					pins = "gpio45";
+					function = "qup6";
+					bias-pull-down;
+				};
+
+				rts-tx-pins {
+					pins = "gpio46", "gpio47";
+					function = "qup6";
+					drive-strength = <2>;
+					bias-disable;
+				};
+
+				rx-pins {
+					pins = "gpio48";
+					function = "qup6";
+					bias-pull-up;
+				};
+			};
+
 			qup_uart7_default: qup-uart7-default {
 				pinmux {
 					pins = "gpio95", "gpio96";