[PATCH 3/3] arm64: dts: qcom: Add Samsung Galaxy Book2 Go
From: Luca Weiss
Date: Mon Oct 12 2026 - 14:12:31 EST
From: Jasper Korten <jja2000@xxxxxxxxx>
The Samsung Galaxy Book2 Go is a laptop with a Snapdragon 7c+ Gen 3 SoC
(SC7280).
Add initial functionality:
* Display (with backlight, GPU)
* Touchpad & keyboard (without Fn key mapping support)
* UFS storage
* SD card
* USB Type-A port
* Modem and mobile data
* WiFi & Bluetooth
* ADSP & CDSP bootup
* Battery fuel gauge
* Venus/Iris
* Lid switch
* RGB LED (Operating status LED)
* Webcam (USB UVC)
Notably missing:
* Speaker & microphone
* Charging
* USB Type-C ports (except when active at boot)
* DisplayPort on right-side USB-C port
Signed-off-by: Jasper Korten <jja2000@xxxxxxxxx>
Co-developed-by: Federico Amedeo Izzo <federico@xxxxxxxx>
Signed-off-by: Federico Amedeo Izzo <federico@xxxxxxxx>
Co-developed-by: Luca Weiss <luca@xxxxxxxxxxxx>
Signed-off-by: Luca Weiss <luca@xxxxxxxxxxxx>
Signed-off-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/Makefile | 1 +
.../dts/qcom/sc7280-samsung-galaxy-book2-go.dts | 643 +++++++++++++++++++++
2 files changed, 644 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 1c86e7e98f55..8e54d9ce5f3d 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -287,6 +287,7 @@ dtb-$(CONFIG_ARCH_QCOM) += sc7280-herobrine-zombie-nvme-lte.dtb
dtb-$(CONFIG_ARCH_QCOM) += sc7280-idp.dtb
dtb-$(CONFIG_ARCH_QCOM) += sc7280-idp2.dtb
dtb-$(CONFIG_ARCH_QCOM) += sc7280-crd-r3.dtb
+dtb-$(CONFIG_ARCH_QCOM) += sc7280-samsung-galaxy-book2-go.dtb
dtb-$(CONFIG_ARCH_QCOM) += sc8180x-lenovo-flex-5g.dtb
dtb-$(CONFIG_ARCH_QCOM) += sc8180x-primus.dtb
sc8280xp-crd-el2-dtbs := sc8280xp-crd.dtb sc8280xp-el2.dtbo
diff --git a/arch/arm64/boot/dts/qcom/sc7280-samsung-galaxy-book2-go.dts b/arch/arm64/boot/dts/qcom/sc7280-samsung-galaxy-book2-go.dts
new file mode 100644
index 000000000000..fe1a1b01f67e
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sc7280-samsung-galaxy-book2-go.dts
@@ -0,0 +1,643 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2025, Jasper Korten <jja2000@xxxxxxxxx>
+ * Copyright (c) 2026, Luca Weiss <luca@xxxxxxxxxxxx>
+ */
+
+/dts-v1/;
+
+/* PM7250B is configured to use SID8/9 */
+#define PM7250B_SID 8
+#define PM7250B_SID1 9
+
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+#include "kodiak.dtsi"
+#include "qcs6490-audioreach.dtsi"
+#include "pm7250b.dtsi"
+#include "pm7325.dtsi"
+#include "pm8350c.dtsi"
+#include "pmk8350.dtsi"
+
+/delete-node/ &ipa_fw_mem;
+/delete-node/ &rmtfs_mem;
+/delete-node/ &wpss_mem;
+/delete-node/ &xbl_mem;
+
+/ {
+ model = "Samsung Galaxy Book2 Go";
+ compatible = "samsung,galaxy-book2-go", "qcom,sc7280";
+ chassis-type = "laptop";
+
+ aliases {
+ serial1 = &uart7;
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+
+ pinctrl-0 = <&hall_int_default>;
+ pinctrl-names = "default";
+
+ switch-lid {
+ label = "Switch Lid";
+ gpios = <&tlmm 35 GPIO_ACTIVE_LOW>;
+ linux,input-type = <EV_SW>;
+ linux,code = <SW_LID>;
+ wakeup-source;
+ };
+ };
+
+ pm8350c_pwm_backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pm8350c_pwm 3 65535>;
+ enable-gpios = <&pm8350c_gpios 7 GPIO_ACTIVE_HIGH>;
+ pinctrl-0 = <&pmic_lcd_bl_en>;
+ pinctrl-names = "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 96 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+
+ pinctrl-0 = <&edp_reg_en>;
+ pinctrl-names = "default";
+
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ reserved-memory {
+ wpss_mem: wpss@84800000 {
+ reg = <0x0 0x84800000 0x0 0x1900000>;
+ no-map;
+ };
+
+ rmtfs_mem: rmtfs@a0800000 {
+ compatible = "qcom,rmtfs-mem";
+ reg = <0x0 0xa0800000 0x0 0x300000>;
+ no-map;
+
+ qcom,client-id = <1>;
+ };
+
+ ipa_fw_mem: ipa-fw@81800000 {
+ reg = <0x0 0x81800000 0x0 0x70000>;
+ no-map;
+ };
+ };
+};
+
+&apps_rsc {
+ regulators-0 {
+ compatible = "qcom,pm7325-rpmh-regulators";
+ qcom,pmic-id = "b";
+
+ vreg_l1b_0p8: ldo1 {
+ regulator-name = "vreg_l1b";
+ regulator-min-microvolt = <880000>;
+ regulator-max-microvolt = <912000>;
+ };
+
+ vreg_l2b_3p0: ldo2 {
+ regulator-name = "vreg_l2b";
+ regulator-min-microvolt = <3072000>;
+ regulator-max-microvolt = <3072000>;
+ };
+
+ vreg_l6b_1p2: ldo6 {
+ regulator-name = "vreg_l6b";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ };
+
+ vreg_l7b_2p9: ldo7 {
+ regulator-name = "vreg_l7b";
+ regulator-min-microvolt = <2504000>;
+ regulator-max-microvolt = <2960000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_l9b_1p2: ldo9 {
+ regulator-name = "vreg_l9b";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ };
+
+ vreg_l18b_1p8: ldo18 {
+ regulator-name = "vreg_l18b";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ vreg_l19b_1p8: ldo19 {
+ regulator-name = "vreg_l19b";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ vreg_s1b_1p8: smps1 {
+ regulator-name = "vreg_s1b";
+ regulator-min-microvolt = <1872000>;
+ regulator-max-microvolt = <1872000>;
+ };
+
+ vreg_s7b_0p9: smps7 {
+ regulator-name = "vreg_s7b";
+ regulator-min-microvolt = <952000>;
+ regulator-max-microvolt = <952000>;
+ };
+
+ vreg_s8b_1p2: smps8 {
+ regulator-name = "vreg_s8b";
+ regulator-min-microvolt = <1256000>;
+ regulator-max-microvolt = <1256000>;
+ };
+ };
+
+ regulators-1 {
+ compatible = "qcom,pm8350c-rpmh-regulators";
+ qcom,pmic-id = "c";
+
+ vreg_l1c_1p8: ldo1 {
+ regulator-name = "vreg_l1c";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ vreg_l6c_2p9: ldo6 {
+ regulator-name = "vreg_l6c";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <2950000>;
+ };
+
+ vreg_l7c_3p0: ldo7 {
+ regulator-name = "vreg_l7c";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ vreg_l9c_2p9: ldo9 {
+ regulator-name = "vreg_l9c";
+ regulator-min-microvolt = <2960000>;
+ regulator-max-microvolt = <2960000>;
+ };
+
+ vreg_l10c_0p8: ldo10 {
+ regulator-name = "vreg_l10c";
+ regulator-min-microvolt = <880000>;
+ regulator-max-microvolt = <880000>;
+ };
+
+ vreg_l12c_1p8: ldo12 {
+ regulator-name = "vreg_l12c";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ };
+};
+
+&gcc {
+ protected-clocks = <GCC_CFG_NOC_LPASS_CLK>,
+ <GCC_EDP_CLKREF_EN>,
+ <GCC_MSS_CFG_AHB_CLK>,
+ <GCC_MSS_GPLL0_MAIN_DIV_CLK_SRC>,
+ <GCC_MSS_OFFLINE_AXI_CLK>,
+ <GCC_MSS_Q6SS_BOOT_CLK_SRC>,
+ <GCC_MSS_Q6_MEMNOC_AXI_CLK>,
+ <GCC_MSS_SNOC_AXI_CLK>,
+ <GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
+ <GCC_QSPI_CORE_CLK>,
+ <GCC_QSPI_CORE_CLK_SRC>,
+ <GCC_SEC_CTRL_CLK_SRC>,
+ <GCC_WPSS_AHB_BDG_MST_CLK>,
+ <GCC_WPSS_AHB_CLK>,
+ <GCC_WPSS_RSCP_CLK>;
+};
+
+&gpu {
+ status = "okay";
+};
+
+&gpu_zap_shader {
+ firmware-name = "qcom/sc7280/Samsung/galaxy-book2-go/qcdxkmsuc7280.mbn";
+};
+
+&i2c0 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+
+ /* SSTP0001 */
+ touchpad@40 {
+ compatible = "hid-over-i2c";
+ reg = <0x40>;
+ hid-descr-addr = <0x0e>;
+
+ interrupts-extended = <&tlmm 51 IRQ_TYPE_LEVEL_LOW>;
+
+ vdd-supply = <&vreg_l7c_3p0>;
+ vddl-supply = <&vreg_l18b_1p8>;
+
+ post-power-on-delay-ms = <2>;
+
+ pinctrl-0 = <&hid_touchpad_default>;
+ pinctrl-names = "default";
+
+ wakeup-source;
+ };
+};
+
+&i2c1 {
+ status = "okay";
+};
+
+&i2c2 {
+ status = "okay";
+
+ /* A96T396 Proximity @ 0x20 & 0x21 ? */
+};
+
+&i2c4 {
+ status = "okay";
+
+ /* LIS2DLC12 Accelerometer @ 0x1d ? */
+};
+
+&i2c9 {
+ status = "okay";
+
+ /* A96T396 Proximity @ 0x20 ? */
+};
+
+&i2c10 {
+ status = "okay";
+
+ /* ? @ 0x09 */
+
+ battery@b {
+ compatible = "sbs,sbs-battery";
+ reg = <0x0b>;
+ };
+};
+
+&i2c12 {
+ clock-frequency = <100000>;
+
+ status = "okay";
+
+ /* SSEC0001 */
+ keyboard@5 {
+ compatible = "hid-over-i2c";
+ reg = <0x5>;
+ hid-descr-addr = <0x20>;
+
+ interrupts-extended = <&tlmm 131 IRQ_TYPE_LEVEL_LOW>;
+
+ pinctrl-0 = <&hid_keyboard_default>;
+ pinctrl-names = "default";
+
+ wakeup-source;
+ };
+};
+
+&i2c14 {
+ status = "okay";
+
+ /* EC2 (?) @ 0x62 */
+};
+
+&ipa {
+ firmware-name = "qcom/sc7280/Samsung/galaxy-book2-go/ipa_fws.elf";
+
+ status = "okay";
+};
+
+&mdss {
+ status = "okay";
+};
+
+&mdss_edp {
+ status = "okay";
+
+ aux-bus {
+ edp_panel: panel {
+ compatible = "edp-panel";
+
+ power-supply = <&vreg_edp_3p3>;
+ backlight = <&pm8350c_pwm_backlight>;
+
+ port {
+ edp_panel_in: endpoint {
+ remote-endpoint = <&mdss_edp_out>;
+ };
+ };
+ };
+ };
+};
+
+&mdss_edp_out {
+ data-lanes = <0 1 2 3>;
+ link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+ remote-endpoint = <&edp_panel_in>;
+};
+
+&mdss_edp_phy {
+ vdda-pll-supply = <&vreg_l10c_0p8>;
+ vdda-phy-supply = <&vreg_l6b_1p2>;
+
+ status = "okay";
+};
+
+&pm8350c_gpios {
+ pmic_lcd_bl_en: pmic-lcd-bl-en-state {
+ pins = "gpio7";
+ function = "normal";
+ bias-disable;
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
+ output-low;
+ power-source = <0>;
+ };
+
+ pmic_lcd_bl_pwm: pmic-lcd-bl-pwm-state {
+ pins = "gpio8";
+ function = "func1";
+ bias-disable;
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
+ output-low;
+ power-source = <0>;
+ };
+};
+
+&pm8350c_pwm {
+ pinctrl-0 = <&pmic_lcd_bl_pwm>;
+ pinctrl-names = "default";
+
+ status = "okay";
+
+ multi-led {
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_STATUS;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@1 {
+ reg = <1>;
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ led@2 {
+ reg = <2>;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led@3 {
+ reg = <3>;
+ color = <LED_COLOR_ID_BLUE>;
+ };
+ };
+};
+
+&pon_pwrkey {
+ status = "okay";
+};
+
+&qupv3_id_0 {
+ status = "okay";
+};
+
+&qupv3_id_1 {
+ status = "okay";
+};
+
+&remoteproc_adsp {
+ firmware-name = "qcom/sc7280/Samsung/galaxy-book2-go/qcadsp7280.mbn";
+
+ status = "okay";
+};
+
+&remoteproc_cdsp {
+ firmware-name = "qcom/sc7280/Samsung/galaxy-book2-go/qccdsp7280.mbn";
+
+ status = "okay";
+};
+
+&remoteproc_mpss {
+ firmware-name = "qcom/sc7280/Samsung/galaxy-book2-go/qcmpss7280.mbn";
+
+ status = "okay";
+};
+
+&remoteproc_wpss {
+ firmware-name = "qcom/sc7280/Samsung/galaxy-book2-go/wpss.mbn";
+
+ status = "okay";
+};
+
+&sdc2_clk {
+ drive-strength = <16>;
+ bias-disable;
+};
+
+&sdc2_cmd {
+ drive-strength = <10>;
+ bias-pull-up;
+};
+
+&sdc2_data {
+ drive-strength = <10>;
+ bias-pull-up;
+};
+
+&sdhc_2 {
+ vmmc-supply = <&vreg_l9c_2p9>;
+ vqmmc-supply = <&vreg_l6c_2p9>;
+
+ pinctrl-0 = <&sdc2_clk>, <&sdc2_cmd>, <&sdc2_data>;
+ pinctrl-1 = <&sdc2_clk_sleep>, <&sdc2_cmd_sleep>, <&sdc2_data_sleep>;
+
+ status = "okay";
+};
+
+&tlmm {
+ qup_uart7_sleep_cts: qup-uart7-sleep-cts-state {
+ pins = "gpio28";
+ function = "gpio";
+ /*
+ * Configure a bias-bus-hold on CTS to lower power
+ * usage when Bluetooth is turned off. Bus hold will
+ * maintain a low power state regardless of whether
+ * the Bluetooth module drives the pin in either
+ * direction or leaves the pin fully unpowered.
+ */
+ bias-bus-hold;
+ };
+
+ qup_uart7_sleep_rts: qup-uart7-sleep-rts-state {
+ pins = "gpio29";
+ function = "gpio";
+ /*
+ * Configure pull-down on RTS. As RTS is active low
+ * signal, pull it low to indicate the BT SoC that it
+ * can wakeup the system anytime from suspend state by
+ * pulling RX low (by sending wakeup bytes).
+ */
+ bias-pull-down;
+ };
+
+ qup_uart7_sleep_tx: qup-uart7-sleep-tx-state {
+ pins = "gpio30";
+ function = "gpio";
+ /*
+ * Configure pull-up on TX when it isn't actively driven
+ * to prevent BT SoC from receiving garbage during sleep.
+ */
+ bias-pull-up;
+ };
+
+ qup_uart7_sleep_rx: qup-uart7-sleep-rx-state {
+ pins = "gpio31";
+ function = "gpio";
+ /*
+ * Configure a pull-up on RX. This is needed to avoid
+ * garbage data when the TX pin of the Bluetooth module
+ * is floating which may cause spurious wakeups.
+ */
+ bias-pull-up;
+ };
+
+ hall_int_default: hall-int-state {
+ pins = "gpio35";
+ function = "gpio";
+ bias-disable;
+ };
+
+ hid_touchpad_default: hid-touchpad-default-state {
+ pins = "gpio61";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ bluetooth_enable_default: bluetooth-enable-default-state {
+ pins = "gpio85";
+ function = "gpio";
+ output-low;
+ bias-disable;
+ };
+
+ sw_ctrl_default: sw-ctrl-default-state {
+ pins = "gpio86";
+ function = "gpio";
+ bias-pull-down;
+ };
+
+ edp_reg_en: edp-reg-en-state {
+ pins = "gpio96";
+ function = "gpio";
+ drive-strength = <16>;
+ bias-pull-up;
+ };
+
+ hid_keyboard_default: hid-keyboard-default-state {
+ pins = "gpio131";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+};
+
+&uart7 {
+ /delete-property/interrupts;
+ interrupts-extended = <&intc GIC_SPI 608 IRQ_TYPE_LEVEL_HIGH>,
+ <&tlmm 31 IRQ_TYPE_EDGE_FALLING>;
+
+ pinctrl-1 = <&qup_uart7_sleep_cts>, <&qup_uart7_sleep_rts>, <&qup_uart7_sleep_tx>, <&qup_uart7_sleep_rx>;
+ pinctrl-names = "default", "sleep";
+
+ status = "okay";
+
+ bluetooth: bluetooth {
+ compatible = "qcom,wcn6750-bt";
+
+ pinctrl-0 = <&bluetooth_enable_default>, <&sw_ctrl_default>;
+ pinctrl-names = "default";
+
+ enable-gpios = <&tlmm 85 GPIO_ACTIVE_HIGH>;
+ swctrl-gpios = <&tlmm 86 GPIO_ACTIVE_HIGH>;
+
+ vddio-supply = <&vreg_l19b_1p8>;
+ vddaon-supply = <&vreg_s7b_0p9>;
+ vddbtcxmx-supply = <&vreg_s7b_0p9>;
+ vddrfacmn-supply = <&vreg_s7b_0p9>;
+ vddrfa0p8-supply = <&vreg_s7b_0p9>;
+ vddrfa1p7-supply = <&vreg_s1b_1p8>;
+ vddrfa1p2-supply = <&vreg_s8b_1p2>;
+
+ max-speed = <3200000>;
+ };
+};
+
+&ufs_mem_hc {
+ reset-gpios = <&tlmm 175 GPIO_ACTIVE_LOW>;
+
+ vcc-supply = <&vreg_l7b_2p9>;
+ vcc-max-microamp = <800000>;
+ vccq-supply = <&vreg_l9b_1p2>;
+ vccq-max-microamp = <900000>;
+
+ status = "okay";
+};
+
+&ufs_mem_phy {
+ vdda-phy-supply = <&vreg_l10c_0p8>;
+ vdda-pll-supply = <&vreg_l6b_1p2>;
+
+ status = "okay";
+};
+
+&usb_1 {
+ dr_mode = "host";
+
+ status = "okay";
+};
+
+&usb_1_hsphy {
+ vdda-pll-supply = <&vreg_l10c_0p8>;
+ vdda33-supply = <&vreg_l2b_3p0>;
+ vdda18-supply = <&vreg_l1c_1p8>;
+ qcom,hs-rise-fall-time-bp = <0>;
+ qcom,squelch-detector-bp = <(-2090)>;
+ qcom,hs-disconnect-bp = <1743>;
+ qcom,hs-amplitude-bp = <1780>;
+ qcom,hs-crossover-voltage-microvolt = <(-31000)>;
+ qcom,hs-output-impedance-micro-ohms = <2600000>;
+
+ status = "okay";
+};
+
+&usb_1_qmpphy {
+ vdda-phy-supply = <&vreg_l6b_1p2>;
+ vdda-pll-supply = <&vreg_l1b_0p8>;
+
+ status = "okay";
+};
+
+&venus {
+ firmware-name = "qcom/sc7280/Samsung/galaxy-book2-go/qcvss7280.mbn";
+
+ status = "okay";
+};
+
+&wifi {
+ status = "okay";
+};
--
2.56.0