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Message-Id: <20250610-slim7x-bt-v2-1-0dcd9d6576e9@oldschoolsolutions.biz>
Date: Tue, 10 Jun 2025 18:59:56 +0200
From: Jens Glathe via B4 Relay <devnull+jens.glathe.oldschoolsolutions.biz@...nel.org>
To: Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Anthony Ruhier <aruhier@...lbox.org>,
Jens Glathe <jens.glathe@...schoolsolutions.biz>
Subject: [PATCH v2] arm64: dts: qcom: x1e80100-lenovo-yoga-slim7x: add
Bluetooth support
From: Jens Glathe <jens.glathe@...schoolsolutions.biz>
To enable Bluetooth pwrseq appears to be required for the WCN7850.
Add the nodes from QCP.
Add uart14 for the BT interface.
Tested-by: Anthony Ruhier <aruhier@...lbox.org>
Signed-off-by: Jens Glathe <jens.glathe@...schoolsolutions.biz>
---
This patch adds the Bluetooth support for the WCN7850 card on this laptop.
Since WCN7850 is supposed to need pwrseq, also added this from the QCP.
This is also part of my tree [1] for the Yoga Slim 7X.
definition for the pwrseq and regulators.
[1] https://github.com/jglathe/linux_ms_dev_kit/blob/jg/ubuntu-qcom-x1e-6.15.0-jg-6/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
---
Changes in v2:
- rebased to next-20250610
- added tested-by from Anthony Ruhier
- Link to v1: https://lore.kernel.org/r/20250426-slim7x-bt-v1-1-d68f961af886@oldschoolsolutions.biz
---
.../boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts | 137 +++++++++++++++++++++
1 file changed, 137 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
index dad0f11e8e8583df6fd8aeec5be2af86739d85fb..720a514611248bb3d6d9518c2920a11631888e5d 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
@@ -18,6 +18,7 @@ / {
aliases {
serial0 = &uart21;
+ serial1 = &uart14;
};
chosen {
@@ -404,6 +405,101 @@ vph_pwr: regulator-vph-pwr {
regulator-always-on;
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;
+ };
+
+ 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 {
@@ -1045,6 +1141,16 @@ &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>;
};
};
@@ -1403,6 +1509,37 @@ usb2_pwr_3p3_reg_en: usb2-pwr-3p3-reg-en-state {
drive-strength = <2>;
bias-disable;
};
+
+ wcn_sw_en: wcn-sw-en-state {
+ pins = "gpio214";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
+ wcn_wlan_bt_en: wcn-wlan-bt-en-state {
+ pins = "gpio116", "gpio117";
+ 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 {
---
base-commit: b27cc623e01be9de1580eaa913508b237a7a9673
change-id: 20250426-slim7x-bt-6d01127291d1
Best regards,
--
Jens Glathe <jens.glathe@...schoolsolutions.biz>
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