[PATCH v2 0/3] arm64: dts: qcom: Add Microsoft Surface Laptop 8th Edition

[PATCH v2 0/3] arm64: dts: qcom: Add Microsoft Surface Laptop 8th Edition

[Gopikrishna Garmidi]

This series adds initial support for the Microsoft Surface Laptop 13.8"
8th Edition. It's built on Mahua, the 12-core variant of Glymur with
cluster2 fused off.

As on the Surface Laptop 7, the keyboard, fan and platform profile are
handled by the Surface Aggregator Module over UART. The rest of the
board is close to the Qualcomm reference design.

With this series the laptop boots to a desktop with rootfs on NVMe.

Features enabled in this series:
1. Internal eDP panel
2. Speakers (2x WSA8845) and DMICs
3. USB-C data and charging on both ports
4. USB multiport controller behind two PTN3222 eUSB2 redrivers
5. Wi-Fi and Bluetooth (WCN7850)
6. NVMe
7. Keyboard, fan and platform profile via SAM
8. HID-over-I2C touchpad and touchscreen
9. Lid switch
10. UEFI variables and RTC via QSEECOM

The QSEECOM patch adds independent support for the board and can be
merged separately from the DT patches.

The ACPI tables used to bring up the board are at [1]. The HWIDs for
booting with stubble, which picks the DTB on ACPI-only machines, are
at [2].

[1] https://github.com/aarch64-laptops/build/pull/176
[2] https://github.com/ubuntu/stubble/pull/97/commits

---
Changes in v2:
- Rebase on next-20261026.
- Drop the SAM registry and panel-edp patches, both already applied.
- Rename the board to microsoft,surface-laptop-8-13p8 and the DTS to
  mahua-microsoft-surface-laptop-8-13p8.dts, as discussed on v1.
- Drop dr_mode = "host" from both USB controllers (Konrad).
- Link to v1: https://patch.msgid.link/20261006-mahua-surface-laptop-v1-0-406fc042162a@oss.qualcomm.com

---
Gopikrishna Garmidi (3):
      dt-bindings: arm: qcom: Document Microsoft Surface Laptop 8th Edition
      firmware: qcom: scm: Allow QSEECOM on Surface Laptop 8th Edition
      arm64: dts: qcom: Add Microsoft Surface Laptop 8th Edition

 Documentation/devicetree/bindings/arm/qcom.yaml    |    1 +
 arch/arm64/boot/dts/qcom/Makefile                  |    1 +
 .../qcom/mahua-microsoft-surface-laptop-8-13p8.dts | 1176 ++++++++++++++++++++
 drivers/firmware/qcom/qcom_scm.c                   |    1 +
 4 files changed, 1179 insertions(+)
---
base-commit: f1ac44c32cba88ad65dcecd4a279661d14e93651
change-id: 20260930-mahua-surface-laptop-0ae6d2419240

Best regards,
--  
Gopikrishna Garmidi <gopikrishna.garmidi@oss.qualcomm.com>

[PATCH v2 1/3] dt-bindings: arm: qcom: Document Microsoft Surface Laptop 8th Edition

[Gopikrishna Garmidi]

Document the Mahua-based Microsoft Surface Laptop 13.8" 8th Edition.

Signed-off-by: Gopikrishna Garmidi <gopikrishna.garmidi@oss.qualcomm.com>
---
 Documentation/devicetree/bindings/arm/qcom.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml b/Documentation/devicetree/bindings/arm/qcom.yaml
index 121ca557ce1e..14941a0b0854 100644
--- a/Documentation/devicetree/bindings/arm/qcom.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom.yaml
@@ -191,6 +191,7 @@ properties:
 
       - items:
           - enum:
+              - microsoft,surface-laptop-8-13p8
               - qcom,mahua-crd
           - const: qcom,mahua
 

-- 
2.34.1

[PATCH v2 2/3] firmware: qcom: scm: Allow QSEECOM on Surface Laptop 8th Edition

[Gopikrishna Garmidi]

Allow the use of QSEECOM on the Mahua-based Microsoft Surface Laptop
13.8" 8th Edition, giving access to the UEFI variables and the RTC
offset stored there.

Signed-off-by: Gopikrishna Garmidi <gopikrishna.garmidi@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
 drivers/firmware/qcom/qcom_scm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/qcom/qcom_scm.c b/drivers/firmware/qcom/qcom_scm.c
index 43e250faea75..30d87fd939e8 100644
--- a/drivers/firmware/qcom/qcom_scm.c
+++ b/drivers/firmware/qcom/qcom_scm.c
@@ -2255,6 +2255,7 @@ static const struct of_device_id qcom_scm_qseecom_allowlist[] __maybe_unused = {
 	{ .compatible = "microsoft,denali", },
 	{ .compatible = "microsoft,romulus13", },
 	{ .compatible = "microsoft,romulus15", },
+	{ .compatible = "microsoft,surface-laptop-8-13p8", },
 	{ .compatible = "qcom,glymur-crd" },
 	{ .compatible = "qcom,glymur-qcb" },
 	{ .compatible = "qcom,hamoa-iot-evk" },

-- 
2.34.1

[PATCH v2 3/3] arm64: dts: qcom: Add Microsoft Surface Laptop 8th Edition

[Gopikrishna Garmidi]

Add support for the Microsoft Surface Laptop 13.8" 8th Edition, which is
built on the Mahua SoC. Most of the board follows the Qualcomm reference
design. The keyboard, fan and platform profile sit behind the Surface
Aggregator Module on uart22, same as on the Surface Laptop 7.

What works:
- internal eDP panel (link capped at HBR, HBR2 fails channel equalization)
- both USB-C ports, data and charging
- USB multiport controller behind the two PTN3222 eUSB2 redrivers
- Wi-Fi and Bluetooth (WCN7850)
- speakers (2x WSA8845) and the two DMICs
- NVMe
- keyboard, fan and platform profile via SAM
- touchpad and touchscreen (HID over I2C)
- lid switch

The GPU and GMU remain disabled because support is not yet
functional on this platform.

Assisted-by: LLM
Signed-off-by: Gopikrishna Garmidi <gopikrishna.garmidi@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/Makefile                  |    1 +
 .../qcom/mahua-microsoft-surface-laptop-8-13p8.dts | 1176 ++++++++++++++++++++
 2 files changed, 1177 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 88230c4e00ea..23b5523a0c32 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -65,6 +65,7 @@ lemans-evk-ifp-mezzanine-dtbs	:= lemans-evk.dtb lemans-evk-ifp-mezzanine.dtbo
 dtb-$(CONFIG_ARCH_QCOM)	+= lemans-evk-ifp-mezzanine.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= mahua-crd.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= mahua-lenovo-thinkpad-t14s-gen7-lcd.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= mahua-microsoft-surface-laptop-8-13p8.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= milos-fairphone-fp6.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= milos-nothing-asteroids.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= monaco-arduino-monza.dtb
diff --git a/arch/arm64/boot/dts/qcom/mahua-microsoft-surface-laptop-8-13p8.dts b/arch/arm64/boot/dts/qcom/mahua-microsoft-surface-laptop-8-13p8.dts
new file mode 100644
index 000000000000..9acba318ab52
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/mahua-microsoft-surface-laptop-8-13p8.dts
@@ -0,0 +1,1176 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+/dts-v1/;
+
+#include "mahua.dtsi"
+
+#include "pmcx0102.dtsi"
+#include "pmh0101.dtsi"
+#include "pmh0110-glymur.dtsi"
+#include "pmh0104-glymur.dtsi"
+#include "pmk8850.dtsi"
+#include "smb2370.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/gpio-keys.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+
+/* PMICs tied to Glymur's cluster2 are absent on Mahua. */
+/delete-node/ &pmcx0102_d_e0;
+/delete-node/ &pmcx0102_d0_thermal;
+/delete-node/ &pmh0104_i_e0;
+/delete-node/ &pmh0104_i0_thermal;
+/delete-node/ &pmh0104_j_e0;
+/delete-node/ &pmh0104_j0_thermal;
+
+/ {
+	model = "Microsoft Surface Laptop 8th Edition (13.8 inch)";
+	compatible = "microsoft,surface-laptop-8-13p8", "qcom,mahua";
+
+	aliases {
+		i2c0 = &i2c0;
+		i2c4 = &i2c4;
+		i2c5 = &i2c5;
+		i2c8 = &i2c8;
+		i2c10 = &i2c10;
+
+		serial0 = &uart22;
+		serial1 = &uart14;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	clocks {
+		xo_board: xo-board {
+			compatible = "fixed-clock";
+			clock-frequency = <38400000>;
+			#clock-cells = <0>;
+		};
+
+		sleep_clk: sleep-clk {
+			compatible = "fixed-clock";
+			clock-frequency = <32000>;
+			#clock-cells = <0>;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		pinctrl-0 = <&hall_int_n_default>;
+		pinctrl-names = "default";
+
+		switch-lid {
+			label = "lid";
+			gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_LID>;
+			wakeup-source;
+			wakeup-event-action = <EV_ACT_DEASSERTED>;
+		};
+	};
+
+	pmic-glink {
+		compatible = "qcom,glymur-pmic-glink",
+			     "qcom,pmic-glink";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		connector@0 {
+			compatible = "usb-c-connector";
+			reg = <0>;
+			power-role = "dual";
+			data-role = "dual";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					pmic_glink_hs_in: endpoint {
+						remote-endpoint = <&usb_0_dwc3_hs>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+
+					pmic_glink_ss_in: endpoint {
+						remote-endpoint = <&usb_0_qmpphy_out>;
+					};
+				};
+			};
+		};
+
+		connector@1 {
+			compatible = "usb-c-connector";
+			reg = <1>;
+			power-role = "dual";
+			data-role = "dual";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					pmic_glink_hs_in1: endpoint {
+						remote-endpoint = <&usb_1_dwc3_hs>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+
+					pmic_glink_ss_in1: endpoint {
+						remote-endpoint = <&usb_1_qmpphy_out>;
+					};
+				};
+			};
+		};
+	};
+
+	reserved-memory {
+		linux,cma {
+			compatible = "shared-dma-pool";
+			size = <0x0 0x8000000>;
+			reusable;
+			linux,cma-default;
+		};
+	};
+
+	vreg_edp_3p3: regulator-edp-3p3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_EDP_3P3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 70 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&edp_reg_en>;
+		pinctrl-names = "default";
+
+		regulator-boot-on;
+	};
+
+	vreg_nvme: regulator-nvme {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_NVME_3P3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&pmh0101_gpios 14 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&nvme_reg_en>;
+		pinctrl-names = "default";
+
+		regulator-boot-on;
+	};
+
+	vreg_tpad: regulator-tpad {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_TPAD";
+
+		gpio = <&tlmm 102 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		startup-delay-us = <20000>;
+
+		pinctrl-0 = <&tpad_en>;
+		pinctrl-names = "default";
+	};
+
+	vreg_ts: regulator-ts {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_TS";
+
+		gpio = <&tlmm 38 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		startup-delay-us = <6000>;
+
+		pinctrl-0 = <&ts_pwr_en>;
+		pinctrl-names = "default";
+	};
+
+	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_3p3: regulator-wcn-3p3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_WCN_3P3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 94 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&wcn_sw_en>;
+		pinctrl-names = "default";
+
+		regulator-boot-on;
+	};
+
+	sound {
+		compatible = "qcom,glymur-sndcard";
+		model = "Microsoft-Surface-Laptop-8-13p8";
+		audio-routing = "SpkrLeft IN", "WSA WSA_SPK1 OUT",
+				"SpkrRight IN", "WSA WSA_SPK2 OUT",
+				"VA DMIC0", "vdd-micb",
+				"VA DMIC1", "vdd-micb";
+
+		wsa-dai-link {
+			link-name = "WSA Playback";
+
+			cpu {
+				sound-dai = <&q6apmbedai WSA_CODEC_DMA_RX_0>;
+			};
+
+			codec {
+				sound-dai = <&left_spkr>, <&right_spkr>,
+					    <&swr0 0>, <&lpass_wsamacro 0>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+
+		va-dai-link {
+			link-name = "VA Capture";
+
+			cpu {
+				sound-dai = <&q6apmbedai VA_CODEC_DMA_TX_0>;
+			};
+
+			codec {
+				sound-dai = <&lpass_vamacro 0>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+
+		displayport-0-dai-link {
+			link-name = "DisplayPort0 Playback";
+
+			cpu {
+				sound-dai = <&q6apmbedai DISPLAY_PORT_RX_0>;
+			};
+
+			codec {
+				sound-dai = <&mdss_dp0>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+
+		displayport-1-dai-link {
+			link-name = "DisplayPort1 Playback";
+
+			cpu {
+				sound-dai = <&q6apmbedai DISPLAY_PORT_RX_1>;
+			};
+
+			codec {
+				sound-dai = <&mdss_dp1>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+	};
+
+	wcn7850-pmu {
+		compatible = "qcom,wcn7850-pmu";
+
+		vdd-supply = <&vreg_wcn_0p95>;
+		vddio-supply = <&vreg_l15b_e0_1p8>;
+		vddaon-supply = <&vreg_l15b_e0_1p8>;
+		vdddig-supply = <&vreg_l15b_e0_1p8>;
+		vddrfa1p2-supply = <&vreg_l15b_e0_1p8>;
+		vddrfa1p8-supply = <&vreg_l15b_e0_1p8>;
+
+		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 {
+	regulators-0 {
+		compatible = "qcom,pmh0101-rpmh-regulators";
+		qcom,pmic-id = "B_E0";
+
+		vreg_bob1_e0: bob1 {
+			regulator-name = "vreg_bob1_e0";
+			regulator-min-microvolt = <2200000>;
+			regulator-max-microvolt = <4224000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_AUTO>;
+		};
+
+		vreg_bob2_e0: bob2 {
+			regulator-name = "vreg_bob2_e0";
+			regulator-min-microvolt = <2540000>;
+			regulator-max-microvolt = <3600000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_AUTO>;
+		};
+
+		vreg_l1b_e0_1p8: ldo1 {
+			regulator-name = "vreg_l1b_e0_1p8";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l2b_e0_2p9: ldo2 {
+			regulator-name = "vreg_l2b_e0_2p9";
+			regulator-min-microvolt = <1804000>;
+			regulator-max-microvolt = <2904000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l7b_e0_2p79: ldo7 {
+			regulator-name = "vreg_l7b_e0_2p79";
+			regulator-min-microvolt = <2790000>;
+			regulator-max-microvolt = <2792000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l8b_e0_3p3: ldo8 {
+			regulator-name = "vreg_l8b_e0_3p3";
+			regulator-min-microvolt = <3304000>;
+			regulator-max-microvolt = <3304000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l9b_e0_2p9: ldo9 {
+			regulator-name = "vreg_l9b_e0_2p9";
+			regulator-min-microvolt = <2960000>;
+			regulator-max-microvolt = <2960000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l10b_e0_1p8: ldo10 {
+			regulator-name = "vreg_l10b_e0_1p8";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l11b_e0_1p2: ldo11 {
+			regulator-name = "vreg_l11b_e0_1p2";
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1200000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l12b_e0_1p14: ldo12 {
+			regulator-name = "vreg_l12b_e0_1p14";
+			regulator-min-microvolt = <1144000>;
+			regulator-max-microvolt = <1144000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l15b_e0_1p8: ldo15 {
+			regulator-name = "vreg_l15b_e0_1p8";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l17b_e0_2p4: ldo17 {
+			regulator-name = "vreg_l17b_e0_2p4";
+			regulator-min-microvolt = <2400000>;
+			regulator-max-microvolt = <2700000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l18b_e0_1p2: ldo18 {
+			regulator-name = "vreg_l18b_e0_1p2";
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1200000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+	};
+
+	regulators-1 {
+		compatible = "qcom,pmcx0102-rpmh-regulators";
+		qcom,pmic-id = "C_E1";
+
+		vreg_l1c_e1_0p82: ldo1 {
+			regulator-name = "vreg_l1c_e1_0p82";
+			regulator-min-microvolt = <832000>;
+			regulator-max-microvolt = <832000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l2c_e1_1p14: ldo2 {
+			regulator-name = "vreg_l2c_e1_1p14";
+			regulator-min-microvolt = <1144000>;
+			regulator-max-microvolt = <1144000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l3c_e1_0p89: ldo3 {
+			regulator-name = "vreg_l3c_e1_0p89";
+			regulator-min-microvolt = <890000>;
+			regulator-max-microvolt = <980000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l4c_e1_0p72: ldo4 {
+			regulator-name = "vreg_l4c_e1_0p72";
+			regulator-min-microvolt = <720000>;
+			regulator-max-microvolt = <720000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+	};
+
+	regulators-2 {
+		compatible = "qcom,pmh0110-rpmh-regulators";
+		qcom,pmic-id = "F_E0";
+
+		vreg_s7f_e0_1p32: smps7 {
+			regulator-name = "vreg_s7f_e0_1p32";
+			regulator-min-microvolt = <1320000>;
+			regulator-max-microvolt = <1352000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_s8f_e0_0p95: smps8 {
+			regulator-name = "vreg_s8f_e0_0p95";
+			regulator-min-microvolt = <952000>;
+			regulator-max-microvolt = <1200000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_s9f_e0_1p9: smps9 {
+			regulator-name = "vreg_s9f_e0_1p9";
+			regulator-min-microvolt = <1900000>;
+			regulator-max-microvolt = <2000000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l2f_e0_0p82: ldo2 {
+			regulator-name = "vreg_l2f_e0_0p82";
+			regulator-min-microvolt = <832000>;
+			regulator-max-microvolt = <832000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l3f_e0_0p72: ldo3 {
+			regulator-name = "vreg_l3f_e0_0p72";
+			regulator-min-microvolt = <720000>;
+			regulator-max-microvolt = <720000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l4f_e0_0p3: ldo4 {
+			regulator-name = "vreg_l4f_e0_0p3";
+			regulator-min-microvolt = <1080000>;
+			regulator-max-microvolt = <1200000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+	};
+
+	regulators-3 {
+		compatible = "qcom,pmh0110-rpmh-regulators";
+		qcom,pmic-id = "F_E1";
+
+		vreg_s7f_e1_0p3: smps7 {
+			regulator-name = "vreg_s7f_e1_0p3";
+			regulator-min-microvolt = <300000>;
+			regulator-max-microvolt = <1200000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l1f_e1_0p9: ldo1 {
+			regulator-name = "vreg_l1f_e1_0p9";
+			regulator-min-microvolt = <904000>;
+			regulator-max-microvolt = <904000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l2f_e1_0p88: ldo2 {
+			regulator-name = "vreg_l2f_e1_0p88";
+			regulator-min-microvolt = <880000>;
+			regulator-max-microvolt = <880000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l4f_e1_1p2: ldo4 {
+			regulator-name = "vreg_l4f_e1_1p2";
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1200000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+	};
+
+	regulators-4 {
+		compatible = "qcom,pmh0110-rpmh-regulators";
+		qcom,pmic-id = "H_E0";
+
+		vreg_l1h_e0_0p89: ldo1 {
+			regulator-name = "vreg_l1h_e0_0p89";
+			regulator-min-microvolt = <832000>;
+			regulator-max-microvolt = <832000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l2h_e0_0p72: ldo2 {
+			regulator-name = "vreg_l2h_e0_0p72";
+			regulator-min-microvolt = <832000>;
+			regulator-max-microvolt = <832000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l3h_e0_0p32: ldo3 {
+			regulator-name = "vreg_l3h_e0_0p32";
+			regulator-min-microvolt = <320000>;
+			regulator-max-microvolt = <2000000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l4h_e0_1p2: ldo4 {
+			regulator-name = "vreg_l4h_e0_1p2";
+			regulator-min-microvolt = <1080000>;
+			regulator-max-microvolt = <1320000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+	};
+};
+
+/* GPU/GMU not fully functional yet on this platform. */
+&gmu {
+	status = "disabled";
+};
+
+&gpu {
+	status = "disabled";
+};
+
+&i2c0 {
+	clock-frequency = <100000>;
+
+	status = "okay";
+
+	/* Something @39, @3e, @44 */
+};
+
+&i2c4 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	/* INA4230 power monitors @40, @41, @42, @43, @44 */
+};
+
+&i2c5 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	ptn3222_1: redriver@43 {
+		compatible = "nxp,ptn3222";
+		reg = <0x43>;
+
+		reset-gpios = <&tlmm 184 GPIO_ACTIVE_LOW>;
+
+		vdd3v3-supply = <&vreg_l8b_e0_3p3>;
+		vdd1v8-supply = <&vreg_l15b_e0_1p8>;
+
+		#phy-cells = <0>;
+	};
+
+	ptn3222_0: redriver@4f {
+		compatible = "nxp,ptn3222";
+		reg = <0x4f>;
+
+		reset-gpios = <&tlmm 8 GPIO_ACTIVE_LOW>;
+
+		vdd3v3-supply = <&vreg_l8b_e0_3p3>;
+		vdd1v8-supply = <&vreg_l15b_e0_1p8>;
+
+		#phy-cells = <0>;
+	};
+};
+
+&i2c8 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	touchscreen@41 {
+		compatible = "hid-over-i2c";
+		reg = <0x41>;
+
+		hid-descr-addr = <0x1>;
+		interrupts-extended = <&tlmm 43 IRQ_TYPE_LEVEL_LOW>;
+
+		vdd-supply = <&vreg_ts>;
+		post-power-on-delay-ms = <150>;
+
+		pinctrl-0 = <&ts_default>;
+		pinctrl-names = "default";
+	};
+};
+
+&i2c10 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	touchpad@15 {
+		compatible = "hid-over-i2c";
+		reg = <0x15>;
+
+		hid-descr-addr = <0x1>;
+		interrupts-extended = <&tlmm 3 IRQ_TYPE_LEVEL_LOW>;
+
+		vdd-supply = <&vreg_tpad>;
+
+		pinctrl-0 = <&tpad_default>;
+		pinctrl-names = "default";
+
+		wakeup-source;
+	};
+};
+
+&lpass_vamacro {
+	pinctrl-0 = <&dmic01_default>;
+	pinctrl-names = "default";
+	qcom,dmic-sample-rate = <4800000>;
+	vdd-micb-supply = <&vreg_l1b_e0_1p8>;
+};
+
+&mdss {
+	status = "okay";
+};
+
+&mdss_dp0 {
+	status = "okay";
+};
+
+&mdss_dp0_out {
+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+};
+
+&mdss_dp1 {
+	status = "okay";
+};
+
+&mdss_dp1_out {
+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+};
+
+&mdss_dp3 {
+	/delete-property/ #sound-dai-cells;
+
+	pinctrl-0 = <&edp0_hpd_default>;
+	pinctrl-names = "default";
+
+	status = "okay";
+
+	aux-bus {
+		panel {
+			compatible = "edp-panel";
+			enable-gpios = <&tlmm 18 GPIO_ACTIVE_HIGH>;
+			power-supply = <&vreg_edp_3p3>;
+
+			pinctrl-0 = <&edp_bl_en>;
+			pinctrl-names = "default";
+
+			port {
+				edp_panel_in: endpoint {
+					remote-endpoint = <&mdss_dp3_out>;
+				};
+			};
+		};
+	};
+};
+
+&mdss_dp3_out {
+	data-lanes = <0 1 2 3>;
+	/* HBR2 channel equalization fails, limit the link to HBR */
+	link-frequencies = /bits/ 64 <1620000000 2700000000>;
+
+	remote-endpoint = <&edp_panel_in>;
+};
+
+&mdss_dp3_phy {
+	vdda-phy-supply = <&vreg_l2f_e1_0p88>;
+	vdda-pll-supply = <&vreg_l4f_e1_1p2>;
+
+	status = "okay";
+};
+
+&pcie4 {
+	pinctrl-0 = <&pcie4_default>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&pcie4_phy {
+	vdda-phy-supply = <&vreg_l1c_e1_0p82>;
+	vdda-pll-supply = <&vreg_l4f_e1_1p2>;
+
+	status = "okay";
+};
+
+&pcie4_port0 {
+	reset-gpios = <&tlmm 146 GPIO_ACTIVE_LOW>;
+	wake-gpios = <&tlmm 148 GPIO_ACTIVE_LOW>;
+
+	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>;
+	};
+};
+
+&pcie5 {
+	vddpe-3v3-supply = <&vreg_nvme>;
+
+	pinctrl-0 = <&pcie5_default>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&pcie5_phy {
+	vdda-phy-supply = <&vreg_l2f_e0_0p82>;
+	vdda-pll-supply = <&vreg_l4h_e0_1p2>;
+
+	status = "okay";
+};
+
+&pcie5_port0 {
+	reset-gpios = <&tlmm 152 GPIO_ACTIVE_LOW>;
+	wake-gpios = <&tlmm 154 GPIO_ACTIVE_LOW>;
+};
+
+&pmh0101_gpios {
+	nvme_reg_en: nvme-reg-en-state {
+		pins = "gpio14";
+		function = "normal";
+		bias-disable;
+	};
+};
+
+&pmk8850_rtc {
+	qcom,no-alarm;
+};
+
+&remoteproc_adsp {
+	firmware-name = "qcom/glymur/microsoft/mahua/qcadsp8480.mbn",
+			"qcom/glymur/microsoft/mahua/adsp_dtbs.elf";
+
+	status = "okay";
+};
+
+&remoteproc_cdsp {
+	firmware-name = "qcom/glymur/microsoft/mahua/qccdsp8480.mbn",
+			"qcom/glymur/microsoft/mahua/cdsp_dtbs.elf";
+
+	status = "okay";
+};
+
+&smb2370_j_e2_eusb2_repeater {
+	vdd18-supply = <&vreg_l15b_e0_1p8>;
+	vdd3-supply = <&vreg_l7b_e0_2p79>;
+};
+
+&smb2370_k_e2_eusb2_repeater {
+	vdd18-supply = <&vreg_l15b_e0_1p8>;
+	vdd3-supply = <&vreg_l7b_e0_2p79>;
+};
+
+&swr0 {
+	status = "okay";
+
+	/* WSA8845, Left */
+	left_spkr: speaker@0,0 {
+		compatible = "sdw20217020400";
+		reg = <0 0>;
+		reset-gpios = <&lpass_tlmm 12 GPIO_ACTIVE_LOW>;
+		#sound-dai-cells = <0>;
+		sound-name-prefix = "SpkrLeft";
+		vdd-1p8-supply = <&vreg_l15b_e0_1p8>;
+		vdd-io-supply = <&vreg_l18b_e0_1p2>;
+		qcom,port-mapping = <1 2 3 7 12 14>;
+	};
+
+	/* WSA8845, Right */
+	right_spkr: speaker@0,1 {
+		compatible = "sdw20217020400";
+		reg = <0 1>;
+		reset-gpios = <&lpass_tlmm 12 GPIO_ACTIVE_LOW>;
+		#sound-dai-cells = <0>;
+		sound-name-prefix = "SpkrRight";
+		vdd-1p8-supply = <&vreg_l15b_e0_1p8>;
+		vdd-io-supply = <&vreg_l18b_e0_1p2>;
+		qcom,port-mapping = <4 5 6 7 13 15>;
+	};
+};
+
+&tcsr {
+	vdda-qrefrpt0-0p9-supply = <&vreg_l2f_e1_0p88>;
+	vdda-qrefrpt1-0p9-supply = <&vreg_l2f_e1_0p88>;
+	vdda-qrefrpt2-0p9-supply = <&vreg_l2f_e1_0p88>;
+	vdda-qrefrpt3-0p9-supply = <&vreg_l1f_e1_0p9>;
+	vdda-qrefrpt4-0p9-supply = <&vreg_l2h_e0_0p72>;
+	vdda-qrefrpt5-0p9-supply = <&vreg_l2h_e0_0p72>;
+	vdda-qrefrx0-0p9-supply = <&vreg_l2f_e1_0p88>;
+	vdda-qrefrx1-0p9-supply = <&vreg_l2f_e1_0p88>;
+	vdda-qrefrx2-0p9-supply = <&vreg_l2f_e1_0p88>;
+	vdda-qrefrx3-0p9-supply = <&vreg_l2h_e0_0p72>;
+	vdda-qreftx1-0p9-supply = <&vreg_l1f_e1_0p9>;
+	vdda-refgen3-0p9-supply = <&vreg_l1f_e1_0p9>;
+	vdda-refgen3-1p2-supply = <&vreg_l4f_e1_1p2>;
+};
+
+&tlmm {
+	gpio-reserved-ranges = <4 4>,  /* EC TZ Secure I3C */
+			       <10 2>, /* OOB UART */
+			       <44 4>; /* Security SPI (TPM) */
+
+	edp_bl_en: edp-bl-en-state {
+		pins = "gpio18";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	edp_reg_en: edp-reg-en-state {
+		pins = "gpio70";
+		function = "gpio";
+		drive-strength = <16>;
+		bias-disable;
+	};
+
+	edp0_hpd_default: edp0-hpd-default-state {
+		pins = "gpio119";
+		function = "edp0_hot";
+		bias-disable;
+	};
+
+	hall_int_n_default: hall-int-n-state {
+		pins = "gpio2";
+		function = "gpio";
+		bias-disable;
+	};
+
+	pcie4_default: pcie4-default-state {
+		clkreq-n-pins {
+			pins = "gpio147";
+			function = "pcie4_clk_req_n";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+
+		perst-n-pins {
+			pins = "gpio146";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-disable;
+		};
+
+		wake-n-pins {
+			pins = "gpio148";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
+
+	pcie5_default: pcie5-default-state {
+		clkreq-n-pins {
+			pins = "gpio153";
+			function = "pcie5_clk_req_n";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+
+		perst-n-pins {
+			pins = "gpio152";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-disable;
+		};
+
+		wake-n-pins {
+			pins = "gpio154";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
+
+	ssam_state: ssam-state-state {
+		pins = "gpio71";
+		function = "gpio";
+		bias-disable;
+	};
+
+	tpad_default: tpad-default-state {
+		pins = "gpio3";
+		function = "gpio";
+		bias-disable;
+	};
+
+	tpad_en: tpad-en-state {
+		pins = "gpio102";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	ts_default: ts-default-state {
+		int-n-pins {
+			pins = "gpio43";
+			function = "gpio";
+			bias-disable;
+		};
+
+		reset-n-pins {
+			pins = "gpio48";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-disable;
+			output-high;
+		};
+	};
+
+	ts_pwr_en: ts-pwr-en-state {
+		pins = "gpio38";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	wcn_sw_en: wcn-sw-en-state {
+		pins = "gpio94";
+		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 {
+	status = "disabled";
+};
+
+&uart22 {
+	status = "okay";
+
+	embedded-controller {
+		compatible = "microsoft,surface-sam";
+
+		interrupts-extended = <&tlmm 71 IRQ_TYPE_EDGE_RISING>;
+
+		current-speed = <4000000>;
+
+		pinctrl-0 = <&ssam_state>;
+		pinctrl-names = "default";
+	};
+};
+
+&usb_0 {
+	status = "okay";
+};
+
+&usb_0_dwc3_hs {
+	remote-endpoint = <&pmic_glink_hs_in>;
+};
+
+&usb_0_hsphy {
+	vdd-supply = <&vreg_l3f_e0_0p72>;
+	vdda12-supply = <&vreg_l4h_e0_1p2>;
+
+	phys = <&smb2370_j_e2_eusb2_repeater>;
+
+	status = "okay";
+};
+
+&usb_0_qmpphy {
+	vdda-phy-supply = <&vreg_l3f_e0_0p72>;
+	vdda-pll-supply = <&vreg_l4h_e0_1p2>;
+	refgen-supply = <&vreg_l2f_e0_0p82>;
+
+	status = "okay";
+};
+
+&usb_0_qmpphy_out {
+	remote-endpoint = <&pmic_glink_ss_in>;
+};
+
+&usb_1 {
+	status = "okay";
+};
+
+&usb_1_dwc3_hs {
+	remote-endpoint = <&pmic_glink_hs_in1>;
+};
+
+&usb_1_hsphy {
+	vdd-supply = <&vreg_l3f_e0_0p72>;
+	vdda12-supply = <&vreg_l4h_e0_1p2>;
+
+	phys = <&smb2370_k_e2_eusb2_repeater>;
+
+	status = "okay";
+};
+
+&usb_1_qmpphy {
+	vdda-phy-supply = <&vreg_l1h_e0_0p89>;
+	vdda-pll-supply = <&vreg_l4h_e0_1p2>;
+	refgen-supply = <&vreg_l2f_e0_0p82>;
+
+	status = "okay";
+};
+
+&usb_1_qmpphy_out {
+	remote-endpoint = <&pmic_glink_ss_in1>;
+};
+
+&usb_mp {
+	status = "okay";
+};
+
+&usb_mp_hsphy0 {
+	vdd-supply = <&vreg_l2h_e0_0p72>;
+	vdda12-supply = <&vreg_l4h_e0_1p2>;
+
+	phys = <&ptn3222_0>;
+
+	status = "okay";
+};
+
+&usb_mp_hsphy1 {
+	vdd-supply = <&vreg_l2h_e0_0p72>;
+	vdda12-supply = <&vreg_l4h_e0_1p2>;
+
+	phys = <&ptn3222_1>;
+
+	status = "okay";
+};
+
+&usb_mp_qmpphy0 {
+	vdda-phy-supply = <&vreg_l2h_e0_0p72>;
+	vdda-pll-supply = <&vreg_l4h_e0_1p2>;
+	refgen-supply = <&vreg_l4f_e1_1p2>;
+
+	status = "okay";
+};
+
+&usb_mp_qmpphy1 {
+	vdda-phy-supply = <&vreg_l2h_e0_0p72>;
+	vdda-pll-supply = <&vreg_l4h_e0_1p2>;
+	refgen-supply = <&vreg_l4f_e1_1p2>;
+
+	status = "okay";
+};

-- 
2.34.1

Re: [PATCH v2 1/3] dt-bindings: arm: qcom: Document Microsoft Surface Laptop 8th Edition

[Krzysztof Kozlowski]

On Tue, Oct 27, 2026 at 12:33:33AM -0700, Gopikrishna Garmidi wrote:
> Document the Mahua-based Microsoft Surface Laptop 13.8" 8th Edition.
> 
> Signed-off-by: Gopikrishna Garmidi <gopikrishna.garmidi@oss.qualcomm.com>
> ---
>  Documentation/devicetree/bindings/arm/qcom.yaml | 1 +
>  1 file changed, 1 insertion(+)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof

Re: [PATCH v2 3/3] arm64: dts: qcom: Add Microsoft Surface Laptop 8th Edition

[Konrad Dybcio]

On 10/27/26 8:33 AM, Gopikrishna Garmidi wrote:
> Add support for the Microsoft Surface Laptop 13.8" 8th Edition, which is
> built on the Mahua SoC. Most of the board follows the Qualcomm reference
> design. The keyboard, fan and platform profile sit behind the Surface
> Aggregator Module on uart22, same as on the Surface Laptop 7.

[...]


> +		serial0 = &uart22;
> +		serial1 = &uart14;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};

This sends console output straight into your EC, either enable the
debug UART and point it there or remove this hunk

[...]

> +	reserved-memory {
> +		linux,cma {
> +			compatible = "shared-dma-pool";
> +			size = <0x0 0x8000000>;
> +			reusable;
> +			linux,cma-default;
> +		};
> +	};

This hunk should not be necessary, it was on Hamoa laptops because we
didn't have control over the PCIe SMMU and needed a CMA space

Konrad