The onboard WiFi / BT device, WCN3988, has a simple on-chip PMU, which further spreads generated voltage. Describe the PMU in the device tree.
Signed-off-by: Dmitry Baryshkov <[email protected]> --- arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 60 +++++++++++++++++++++++++++----- 1 file changed, 52 insertions(+), 8 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts index 5f8613150bdd..4e1b189dc9d7 100644 --- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts +++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts @@ -237,6 +237,42 @@ vph_pwr: regulator-vph-pwr { regulator-always-on; regulator-boot-on; }; + + wcn3988-pmu { + compatible = "qcom,wcn3988-pmu"; + + pinctrl-0 = <&sw_ctrl_default>; + pinctrl-names = "default"; + + vddio-supply = <&vreg_l9a_1p8>; + vddxo-supply = <&vreg_l16a_1p3>; + vddrfa1p3-supply = <&vreg_l17a_1p3>; + vddch0-supply = <&vreg_l23a_3p3>; + + swctrl-gpios = <&tlmm 87 GPIO_ACTIVE_HIGH>; + + regulators { + vreg_pmu_io: ldo0 { + regulator-name = "vreg_pmu_io"; + }; + + vreg_pmu_xo: ldo1 { + regulator-name = "vreg_pmu_xo"; + }; + + vreg_pmu_rf: ldo2 { + regulator-name = "vreg_pmu_rf"; + }; + + vreg_pmu_ch0: ldo3 { + regulator-name = "vreg_pmu_ch0"; + }; + + vreg_pmu_ch1: ldo4 { + regulator-name = "vreg_pmu_ch1"; + }; + }; + }; }; &gpi_dma0 { @@ -684,6 +720,12 @@ lt9611_irq_pin: lt9611-irq-state { bias-disable; }; + sw_ctrl_default: sw-ctrl-default-state { + pins = "gpio87"; + function = "gpio"; + bias-pull-down; + }; + sdc2_card_det_n: sd-card-det-n-state { pins = "gpio88"; function = "gpio"; @@ -703,11 +745,10 @@ &uart3 { bluetooth { compatible = "qcom,wcn3988-bt"; - vddio-supply = <&vreg_l9a_1p8>; - vddxo-supply = <&vreg_l16a_1p3>; - vddrf-supply = <&vreg_l17a_1p3>; - vddch0-supply = <&vreg_l23a_3p3>; - enable-gpios = <&tlmm 87 GPIO_ACTIVE_HIGH>; + vddio-supply = <&vreg_pmu_io>; + vddxo-supply = <&vreg_pmu_xo>; + vddrf-supply = <&vreg_pmu_rf>; + vddch0-supply = <&vreg_pmu_ch0>; max-speed = <3200000>; }; }; @@ -744,10 +785,13 @@ &usb_qmpphy_out { }; &wifi { + /* SoC */ vdd-0.8-cx-mx-supply = <&vreg_l8a_0p664>; - vdd-1.8-xo-supply = <&vreg_l16a_1p3>; - vdd-1.3-rfa-supply = <&vreg_l17a_1p3>; - vdd-3.3-ch0-supply = <&vreg_l23a_3p3>; + + /* WiFi / BT PMU */ + vdd-1.8-xo-supply = <&vreg_pmu_xo>; + vdd-1.3-rfa-supply = <&vreg_pmu_rf>; + vdd-3.3-ch0-supply = <&vreg_pmu_ch0>; qcom,calibration-variant = "Thundercomm_RB2"; firmware-name = "qrb4210"; -- 2.47.3
