[PATCH v2 13/14] arm64: dts: qcom: sdm845-db845c: describe WiFi/BT properly

[Dmitry Baryshkov]

The onboard WiFi / BT device, WCN3990, has a simple on-chip PMU, which
further spreads generated voltage. Describe the PMU in the device tree.

Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski at oss.qualcomm.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 69 +++++++++++++++++++++++++-----
 1 file changed, 59 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
index 5118b776a9bb..02416812b6a7 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
@@ -276,6 +276,43 @@ vph_pwr: vph-pwr-regulator {
 
 		vin-supply = <&vbat_som>;
 	};
+
+	wcn3990-pmu {
+		compatible = "qcom,wcn3990-pmu";
+
+		pinctrl-0 = <&sw_ctrl_default>;
+		pinctrl-names = "default";
+
+		vddio-supply = <&vreg_s4a_1p8>;
+		vddxo-supply = <&vreg_l7a_1p8>;
+		vddrf-supply = <&vreg_l17a_1p3>;
+		vddch0-supply = <&vreg_l25a_3p3>;
+		vddch1-supply = <&vreg_l23a_3p3>;
+
+		swctrl-gpios = <&pm8998_gpios 3 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";
+			};
+		};
+	};
 };
 
 &adsp_pas {
@@ -659,6 +696,14 @@ cam0_avdd_2v8_en_default: cam0-avdd-2v8-en-state {
 		qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
 	};
 
+	sw_ctrl_default: sw-ctrl-default-state {
+		pins = "gpio3";
+		function = "normal";
+
+		input-enable;
+		bias-pull-down;
+	};
+
 	vol_up_pin_a: vol-up-active-state {
 		pins = "gpio6";
 		function = "normal";
@@ -1038,10 +1083,11 @@ &uart6 {
 	bluetooth {
 		compatible = "qcom,wcn3990-bt";
 
-		vddio-supply = <&vreg_s4a_1p8>;
-		vddxo-supply = <&vreg_l7a_1p8>;
-		vddrf-supply = <&vreg_l17a_1p3>;
-		vddch0-supply = <&vreg_l25a_3p3>;
+		vddio-supply = <&vreg_pmu_io>;
+		vddxo-supply = <&vreg_pmu_xo>;
+		vddrf-supply = <&vreg_pmu_rf>;
+		vddch0-supply = <&vreg_pmu_ch0>;
+
 		max-speed = <3200000>;
 	};
 };
@@ -1155,16 +1201,19 @@ right_spkr: speaker at 0,2 {
 };
 
 &wifi {
-	status = "okay";
-
+	/* SoC */
 	vdd-0.8-cx-mx-supply = <&vreg_l5a_0p8>;
-	vdd-1.8-xo-supply = <&vreg_l7a_1p8>;
-	vdd-1.3-rfa-supply = <&vreg_l17a_1p3>;
-	vdd-3.3-ch0-supply = <&vreg_l25a_3p3>;
-	vdd-3.3-ch1-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>;
+	vdd-3.3-ch1-supply = <&vreg_pmu_ch1>;
 
 	qcom,snoc-host-cap-8bit-quirk;
 	qcom,calibration-variant = "Thundercomm_DB845C";
+
+	status = "okay";
 };
 
 /* PINCTRL - additions to nodes defined in sdm845.dtsi */

-- 
2.47.3