[PATCH 2/5] arm64: dts: qcom: milos-nothing-asteroids: Enable Bluetooth

[Alexander Koskovich <akoskovich@pm.me>]

Add the nodes to describe the WCN6755 chip with its PMU and Bluetooth
parts.

Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
---
 .../boot/dts/qcom/milos-nothing-asteroids.dts      | 200 +++++++++++++++++++++
 1 file changed, 200 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/milos-nothing-asteroids.dts b/arch/arm64/boot/dts/qcom/milos-nothing-asteroids.dts
index fa0cbf78b69a..68b500bd4c3f 100644
--- a/arch/arm64/boot/dts/qcom/milos-nothing-asteroids.dts
+++ b/arch/arm64/boot/dts/qcom/milos-nothing-asteroids.dts
@@ -22,6 +22,7 @@ / {
 
 	aliases {
 		serial0 = &uart5;
+		serial1 = &uart11;
 	};
 
 	chosen {
@@ -85,6 +86,22 @@ pmic_glink_sbu: endpoint {
 		};
 	};
 
+	vreg_s1j: regulator-pm3001a-s1j {
+		compatible = "regulator-fixed";
+		regulator-name = "pm3001a_s1j";
+		regulator-min-microvolt = <2200000>;
+		regulator-max-microvolt = <2200000>;
+		startup-delay-us = <1000>;
+
+		gpio = <&pmr735b_gpios 1 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		vin-supply = <&vph_pwr>;
+
+		pinctrl-0 = <&s1j_enable_default>;
+		pinctrl-names = "default";
+	};
+
 	vph_pwr: regulator-vph-pwr {
 		compatible = "regulator-fixed";
 		regulator-name = "vph_pwr";
@@ -108,6 +125,67 @@ ramoops@81f20000 {
 			pmsg-size = <0x200000>;
 		};
 	};
+
+	wcn6750-pmu {
+		compatible = "qcom,wcn6755-pmu", "qcom,wcn6750-pmu";
+
+		vddaon-supply = <&vreg_s3b>;
+		vddasd-supply = <&vreg_l7b>;
+		vddpmu-supply = <&vreg_s3b>;
+		vddrfa0p8-supply = <&vreg_s3b>;
+		vddrfa1p2-supply = <&vreg_s2b>;
+		vddrfa1p7-supply = <&vreg_s1b>;
+		vddrfa2p2-supply = <&vreg_s1j>;
+
+		bt-enable-gpios = <&tlmm 53 GPIO_ACTIVE_HIGH>;
+
+		clocks = <&rpmhcc RPMH_RF_CLK1>;
+
+		pinctrl-0 = <&bluetooth_enable_default>;
+		pinctrl-names = "default";
+
+		regulators {
+			vreg_pmu_rfa_cmn: ldo0 {
+				regulator-name = "vreg_pmu_rfa_cmn";
+			};
+
+			vreg_pmu_aon_0p59: ldo1 {
+				regulator-name = "vreg_pmu_aon_0p59";
+			};
+
+			vreg_pmu_wlcx_0p8: ldo2 {
+				regulator-name = "vreg_pmu_wlcx_0p8";
+			};
+
+			vreg_pmu_wlmx_0p85: ldo3 {
+				regulator-name = "vreg_pmu_wlmx_0p85";
+			};
+
+			vreg_pmu_btcmx_0p85: ldo4 {
+				regulator-name = "vreg_pmu_btcmx_0p85";
+			};
+
+			vreg_pmu_rfa_0p8: ldo5 {
+				regulator-name = "vreg_pmu_rfa_0p8";
+			};
+
+			vreg_pmu_rfa_1p2: ldo6 {
+				regulator-name = "vreg_pmu_rfa_1p2";
+			};
+
+			vreg_pmu_rfa_1p7: ldo7 {
+				regulator-name = "vreg_pmu_rfa_1p7";
+			};
+
+			vreg_pmu_pcie_0p9: ldo8 {
+				regulator-name = "vreg_pmu_pcie_0p9";
+			};
+
+			vreg_pmu_pcie_1p8: ldo9 {
+				regulator-name = "vreg_pmu_pcie_1p8";
+			};
+		};
+	};
 };
 
 &apps_rsc {
@@ -838,6 +916,16 @@ &pmiv0104_eusb2_repeater {
 	qcom,tune-usb2-preem = /bits/ 8 <0x6>;
 };
 
+&pmr735b_gpios {
+	s1j_enable_default: s1j-enable-default-state {
+		pins = "gpio1";
+		function = PMIC_GPIO_FUNC_NORMAL;
+		power-source = <0>;
+		bias-disable;
+		output-low;
+	};
+};
+
 &pon_pwrkey {
 	status = "okay";
 };
@@ -848,6 +936,39 @@ &pon_resin {
 	status = "okay";
 };
 
+&qup_uart11_cts {
+	/*
+	 * Configure a bias-bus-hold on CTS to lower power
+	 * usage when Bluetooth is turned off. Bus hold will
+	 * maintain a low power state regardless of whether
+	 * the Bluetooth module drives the pin in either
+	 * direction or leaves the pin fully unpowered.
+	 */
+	bias-bus-hold;
+};
+
+&qup_uart11_rts {
+	/* We'll drive RTS, so no pull */
+	drive-strength = <2>;
+	bias-disable;
+};
+
+&qup_uart11_rx {
+	/*
+	 * Configure a pull-up on 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).
+	 */
+	bias-pull-up;
+};
+
+&qup_uart11_tx {
+	/* We'll drive TX, so no pull */
+	drive-strength = <2>;
+	bias-disable;
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };
@@ -886,6 +1007,59 @@ &tlmm {
 	gpio-reserved-ranges = <13 1>, /* Display */
 			       <63 2>; /* WLAN UART */
 
+	qup_uart11_sleep_cts: qup-uart11-sleep-cts-state {
+		pins = "gpio48";
+		function = "gpio";
+		/*
+		 * Configure a bias-bus-hold on CTS to lower power
+		 * usage when Bluetooth is turned off. Bus hold will
+		 * maintain a low power state regardless of whether
+		 * the Bluetooth module drives the pin in either
+		 * direction or leaves the pin fully unpowered.
+		 */
+		bias-bus-hold;
+	};
+
+	qup_uart11_sleep_rts: qup-uart11-sleep-rts-state {
+		pins = "gpio49";
+		function = "gpio";
+		/*
+		 * Configure pull-down on RTS. As RTS is active low
+		 * signal, pull it low to indicate the BT SoC that it
+		 * can wakeup the system anytime from suspend state by
+		 * pulling RX low (by sending wakeup bytes).
+		 */
+		bias-pull-down;
+	};
+
+	qup_uart11_sleep_tx: qup-uart11-sleep-tx-state {
+		pins = "gpio50";
+		function = "gpio";
+		/*
+		 * Configure pull-up on TX when it isn't actively driven
+		 * to prevent BT SoC from receiving garbage during sleep.
+		 */
+		bias-pull-up;
+	};
+
+	qup_uart11_sleep_rx: qup-uart11-sleep-rx-state {
+		pins = "gpio51";
+		function = "gpio";
+		/*
+		 * Configure a pull-up on RX. This is needed to avoid
+		 * garbage data when the TX pin of the Bluetooth module
+		 * is floating which may cause spurious wakeups.
+		 */
+		bias-pull-up;
+	};
+
+	bluetooth_enable_default: bluetooth-enable-default-state {
+		pins = "gpio53";
+		function = "gpio";
+		output-low;
+		bias-disable;
+	};
+
 	assist_default: assist-default-state {
 		pins = "gpio71";
 		function = "gpio";
@@ -905,6 +1079,32 @@ &uart5 {
 	status = "okay";
 };
 
+&uart11 {
+	/delete-property/ interrupts;
+	interrupts-extended = <&intc GIC_SPI 586 IRQ_TYPE_LEVEL_HIGH 0>,
+			      <&tlmm 51 IRQ_TYPE_EDGE_FALLING>;
+
+	pinctrl-1 = <&qup_uart11_sleep_cts>,
+		     <&qup_uart11_sleep_rts>,
+		     <&qup_uart11_sleep_tx>,
+		     <&qup_uart11_sleep_rx>;
+	pinctrl-names = "default",
+			"sleep";
+
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,wcn6755-bt", "qcom,wcn6750-bt";
+
+		vddaon-supply = <&vreg_pmu_aon_0p59>;
+		vddbtcmx-supply = <&vreg_pmu_btcmx_0p85>;
+		vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
+		vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
+		vddrfa1p7-supply = <&vreg_pmu_rfa_1p7>;
+		vddrfacmn-supply = <&vreg_pmu_rfa_cmn>;
+	};
+};
+
 &ufs_mem_hc {
 	reset-gpios = <&tlmm 167 GPIO_ACTIVE_LOW>;
 

-- 
2.55.0