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arm64: dts: qcom: qcm6490-idp: add and enable BT node

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Add the PMU node for WCN6750 present on the qcm6490-idp
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: Janaki Ramaiah Thota <janaki.thota@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260203071807.764036-1-janaki.thota@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Janaki Ramaiah Thota
2026-02-03 12:48:07 +05:30
committed by Bjorn Andersson
parent c2dd39323d
commit af2385d532
1 changed files with 169 additions and 0 deletions
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169
arch/arm64/boot/dts/qcom/qcm6490-idp.dts
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@@ -36,6 +36,7 @@ / {
aliases {
serial0 = &uart5;
serial1 = &uart7;
};
pm8350c_pwm_backlight: backlight {
@@ -194,6 +195,63 @@ wcd9370: audio-codec-0 {
#sound-dai-cells = <1>;
};
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 {
@@ -695,6 +753,39 @@ &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";
};
@@ -920,6 +1011,59 @@ &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;
};
sd_cd: sd-cd-state {
pins = "gpio91";
function = "gpio";
@@ -938,6 +1082,31 @@ &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>;
};
};
&ufs_mem_hc {
reset-gpios = <&tlmm 175 GPIO_ACTIVE_LOW>;
vcc-supply = <&vreg_l7b_2p952>;