arm64: dts: qcom: qrb4210-rb2: describe WiFi/BT properly

The onboard WiFi / BT device, WCN3988, has a simple on-chip PMU, which
further spreads generated voltage. Describe the PMU in the device tree.

Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260106-wcn3990-pwrctl-v2-11-0386204328be@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
index 5f8613150bdd2913d5517cca4356f5ab14735b2a..5ddf448bed8a2cff98b39eb55d03f5b568f8dd87 100644 (file)
--- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
+++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
@@ -237,6 +237,42 @@
                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>;
+               vddrf-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 @@
                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 @@
        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 @@
 };
 
 &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";