arm64: dts: qcom: x1e80100-qcp: Add WiFi/BT pwrseq

Add the WiFi/BT nodes for QCP and describe the regulators for the WCN7850
combo chip using the new power sequencing bindings. All voltages are
derived from chained fixed regulators controlled using a single GPIO.

The same setup also works for CRD (and likely most of the other X1E80100
laptops). However, unlike the QCP they use soldered or removable M.2 cards
supplied by a single 3.3V fixed regulator. The other necessary voltages are
then derived inside the M.2 card. Describing this properly requires
new bindings, so this commit only adds QCP for now.

Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250217-x1e80100-pwrseq-qcp-v3-1-a0525cc01666@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
index 600d0c8a08ef175a7bd7f9523263776be702f079..28086a2bcf4c2d7c4cbf42132e574e6f32167503 100644 (file)
--- a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
@@ -17,6 +17,7 @@
 
        aliases {
                serial0 = &uart21;
+               serial1 = &uart14;
        };
 
        wcd938x: audio-codec {
@@ -281,6 +282,42 @@
                regulator-boot-on;
        };
 
+       vreg_wcn_0p95: regulator-wcn-0p95 {
+               compatible = "regulator-fixed";
+
+               regulator-name = "VREG_WCN_0P95";
+               regulator-min-microvolt = <950000>;
+               regulator-max-microvolt = <950000>;
+
+               vin-supply = <&vreg_wcn_3p3>;
+       };
+
+       vreg_wcn_1p9: regulator-wcn-1p9 {
+               compatible = "regulator-fixed";
+
+               regulator-name = "VREG_WCN_1P9";
+               regulator-min-microvolt = <1900000>;
+               regulator-max-microvolt = <1900000>;
+
+               vin-supply = <&vreg_wcn_3p3>;
+       };
+
+       vreg_wcn_3p3: regulator-wcn-3p3 {
+               compatible = "regulator-fixed";
+
+               regulator-name = "VREG_WCN_3P3";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpio = <&tlmm 214 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+
+               pinctrl-0 = <&wcn_sw_en>;
+               pinctrl-names = "default";
+
+               regulator-boot-on;
+       };
+
        usb-1-ss0-sbu-mux {
                compatible = "onnn,fsusb42", "gpio-sbu-mux";
 
@@ -337,6 +374,65 @@
                        };
                };
        };
+
+       wcn7850-pmu {
+               compatible = "qcom,wcn7850-pmu";
+
+               vdd-supply = <&vreg_wcn_0p95>;
+               vddio-supply = <&vreg_l15b_1p8>;
+               vddaon-supply = <&vreg_wcn_0p95>;
+               vdddig-supply = <&vreg_wcn_0p95>;
+               vddrfa1p2-supply = <&vreg_wcn_1p9>;
+               vddrfa1p8-supply = <&vreg_wcn_1p9>;
+
+               wlan-enable-gpios = <&tlmm 117 GPIO_ACTIVE_HIGH>;
+               bt-enable-gpios = <&tlmm 116 GPIO_ACTIVE_HIGH>;
+
+               pinctrl-0 = <&wcn_wlan_bt_en>;
+               pinctrl-names = "default";
+
+               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_1p8: ldo7 {
+                               regulator-name = "vreg_pmu_rfa_1p8";
+                       };
+
+                       vreg_pmu_pcie_0p9: ldo8 {
+                               regulator-name = "vreg_pmu_pcie_0p9";
+                       };
+
+                       vreg_pmu_pcie_1p8: ldo9 {
+                               regulator-name = "vreg_pmu_pcie_1p8";
+                       };
+               };
+       };
 };
 
 &apps_rsc {
@@ -828,6 +924,23 @@
        status = "okay";
 };
 
+&pcie4_port0 {
+       wifi@0 {
+               compatible = "pci17cb,1107";
+               reg = <0x10000 0x0 0x0 0x0 0x0>;
+
+               vddaon-supply = <&vreg_pmu_aon_0p59>;
+               vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
+               vddwlmx-supply = <&vreg_pmu_wlmx_0p85>;
+               vddrfacmn-supply = <&vreg_pmu_rfa_cmn>;
+               vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
+               vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
+               vddrfa1p8-supply = <&vreg_pmu_rfa_1p8>;
+               vddpcie0p9-supply = <&vreg_pmu_pcie_0p9>;
+               vddpcie1p8-supply = <&vreg_pmu_pcie_1p8>;
+       };
+};
+
 &pcie6a {
        perst-gpios = <&tlmm 152 GPIO_ACTIVE_LOW>;
        wake-gpios = <&tlmm 154 GPIO_ACTIVE_LOW>;
@@ -1138,6 +1251,37 @@
                bias-disable;
                output-low;
        };
+
+       wcn_wlan_bt_en: wcn-wlan-bt-en-state {
+               pins = "gpio116", "gpio117";
+               function = "gpio";
+               drive-strength = <2>;
+               bias-disable;
+       };
+
+       wcn_sw_en: wcn-sw-en-state {
+               pins = "gpio214";
+               function = "gpio";
+               drive-strength = <2>;
+               bias-disable;
+       };
+};
+
+&uart14 {
+       status = "okay";
+
+       bluetooth {
+               compatible = "qcom,wcn7850-bt";
+               max-speed = <3200000>;
+
+               vddaon-supply = <&vreg_pmu_aon_0p59>;
+               vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
+               vddwlmx-supply = <&vreg_pmu_wlmx_0p85>;
+               vddrfacmn-supply = <&vreg_pmu_rfa_cmn>;
+               vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
+               vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
+               vddrfa1p8-supply = <&vreg_pmu_rfa_1p8>;
+       };
 };
 
 &uart21 {