Commit 914d16b4 authored by Janaki Ramaiah Thota's avatar Janaki Ramaiah Thota Committed by Bjorn Andersson
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arm64: dts: qcom: qcs6490-rb3gen2: add and enable BT node 



Add the PMU node for WCN6750 present on the qcs6490-rb3gen2
board and assign its power outputs to the Bluetooth module.

In WCN6750 module sw_ctrl and wifi-enable pins are handled
in the wifi controller firmware. Therefore, it is not required
to have those pins' entries in the PMU node.

Signed-off-by: default avatarJanaki Ramaiah Thota <quic_janathot@quicinc.com>
Reviewed-by: default avatarKonrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250221171014.120946-2-quic_janathot@quicinc.com


Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
parent c24db2c1

arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts

+170 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: BSD-3-Clause

/*

 * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.

 * Copyright (c) 2023-2024 Qualcomm Innovation Center, Inc. All rights reserved.

 */



/dts-v1/;
@@ -36,6 +36,7 @@ / { 


	aliases {

		serial0 = &uart5;

		serial1 = &uart7;

	};



	chosen {
@@ -258,6 +259,63 @@ vph_pwr: vph-pwr-regulator { 
		regulator-min-microvolt = <3700000>;

		regulator-max-microvolt = <3700000>;

	};



	wcn6750-pmu {

		compatible = "qcom,wcn6750-pmu";

		pinctrl-0 = <&bt_en>;

		pinctrl-names = "default";

		vddaon-supply = <&vreg_s7b_0p972>;

		vddasd-supply = <&vreg_l11c_2p8>;

		vddpmu-supply = <&vreg_s7b_0p972>;

		vddrfa0p8-supply = <&vreg_s7b_0p972>;

		vddrfa1p2-supply = <&vreg_s8b_1p272>;

		vddrfa1p7-supply = <&vreg_s1b_1p872>;

		vddrfa2p2-supply = <&vreg_s1c_2p19>;



		bt-enable-gpios = <&tlmm 85 GPIO_ACTIVE_HIGH>;



		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 {
@@ -907,6 +965,39 @@ &pon_resin { 
	status = "okay";

};



&qup_uart7_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_uart7_rts {

	/* We'll drive RTS, so no pull */

	drive-strength = <2>;

	bias-disable;

};



&qup_uart7_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_uart7_tx {

	/* We'll drive TX, so no pull */

	drive-strength = <2>;

	bias-disable;

};



&qupv3_id_0 {

	status = "okay";

};
@@ -950,12 +1041,90 @@ &sdhc_2 { 
&tlmm {

	gpio-reserved-ranges = <32 2>, /* ADSP */

			       <48 4>; /* NFC */



	bt_en: bt-en-state {

		pins = "gpio85";

		function = "gpio";

		output-low;

		bias-disable;

	};



	qup_uart7_sleep_cts: qup-uart7-sleep-cts-state {

		pins = "gpio28";

		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_uart7_sleep_rts: qup-uart7-sleep-rts-state {

		pins = "gpio29";

		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_uart7_sleep_rx: qup-uart7-sleep-rx-state {

		pins = "gpio31";

		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;

	};



	qup_uart7_sleep_tx: qup-uart7-sleep-tx-state {

		pins = "gpio30";

		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;

	};

};



&uart5 {

	status = "okay";

};



&uart7 {

	/delete-property/ interrupts;

	interrupts-extended = <&intc GIC_SPI 608 IRQ_TYPE_LEVEL_HIGH>,

			      <&tlmm 31 IRQ_TYPE_EDGE_FALLING>;

	pinctrl-1 = <&qup_uart7_sleep_cts>,

		    <&qup_uart7_sleep_rts>,

		    <&qup_uart7_sleep_tx>,

		    <&qup_uart7_sleep_rx>;

	pinctrl-names = "default",

			"sleep";



	status = "okay";



	bluetooth: bluetooth {

		compatible = "qcom,wcn6750-bt";

		vddrfacmn-supply = <&vreg_pmu_rfa_cmn>;

		vddaon-supply = <&vreg_pmu_aon_0p59>;

		vddbtcmx-supply = <&vreg_pmu_btcmx_0p85>;

		vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;

		vddrfa1p7-supply = <&vreg_pmu_rfa_1p7>;

		vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;

		max-speed = <3200000>;

	};

};



&usb_1 {

	status = "okay";

};