From 105560b4fca4df0d42dba6656105b5e4131d8ad3 Mon Sep 17 00:00:00 2001
From: Steev Klimaszewski <steev@kali.org>
Date: Sun, 26 Mar 2023 18:38:12 -0500
Subject: [PATCH] arm64: dts: qcom: sc8280xp-x13s: Add bluetooth

The Lenovo Thinkpad X13s has a WCN6855 Bluetooth controller on uart2,
add this.

Signed-off-by: Steev Klimaszewski <steev@kali.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230326233812.28058-5-steev@kali.org
---
 .../dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts     | 70 ++++++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
index 4884e22..a1db3cf 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
@@ -24,6 +24,7 @@
 	aliases {
 		i2c4 = &i2c4;
 		i2c21 = &i2c21;
+		serial1 = &uart2;
 	};
 
 	wcd938x: audio-codec {
@@ -1067,6 +1068,32 @@
 	status = "okay";
 };
 
+&uart2 {
+	pinctrl-0 = <&uart2_default>;
+	pinctrl-names = "default";
+
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,wcn6855-bt";
+
+		vddio-supply = <&vreg_s10b>;
+		vddbtcxmx-supply = <&vreg_s12b>;
+		vddrfacmn-supply = <&vreg_s12b>;
+		vddrfa0p8-supply = <&vreg_s12b>;
+		vddrfa1p2-supply = <&vreg_s11b>;
+		vddrfa1p7-supply = <&vreg_s1c>;
+
+		max-speed = <3200000>;
+
+		enable-gpios = <&tlmm 133 GPIO_ACTIVE_HIGH>;
+		swctrl-gpios = <&tlmm 132 GPIO_ACTIVE_HIGH>;
+
+		pinctrl-0 = <&bt_default>;
+		pinctrl-names = "default";
+	};
+};
+
 &usb_0 {
 	status = "okay";
 };
@@ -1187,6 +1214,21 @@
 &tlmm {
 	gpio-reserved-ranges = <70 2>, <74 6>, <83 4>, <125 2>, <128 2>, <154 7>;
 
+	bt_default: bt-default-state {
+		hstp-bt-en-pins {
+			pins = "gpio133";
+			function = "gpio";
+			drive-strength = <16>;
+			bias-disable;
+		};
+
+		hstp-sw-ctrl-pins {
+			pins = "gpio132";
+			function = "gpio";
+			bias-pull-down;
+		};
+	};
+
 	edp_reg_en: edp-reg-en-state {
 		pins = "gpio25";
 		function = "gpio";
@@ -1353,6 +1395,34 @@
 		};
 	};
 
+	uart2_default: uart2-default-state {
+		cts-pins {
+			pins = "gpio121";
+			function = "qup2";
+			bias-bus-hold;
+		};
+
+		rts-pins {
+			pins = "gpio122";
+			function = "qup2";
+			drive-strength = <2>;
+			bias-disable;
+		};
+
+		rx-pins {
+			pins = "gpio124";
+			function = "qup2";
+			bias-pull-up;
+		};
+
+		tx-pins {
+			pins = "gpio123";
+			function = "qup2";
+			drive-strength = <2>;
+			bias-disable;
+		};
+	};
+
 	usb0_sbu_default: usb0-sbu-state {
 		oe-n-pins {
 			pins = "gpio101";
-- 
2.7.4