[PATCH v2 2/2] arm64: dts: qcom: sm7225: Add Samsung Galaxy Tab S7 FE LTE

[Vishal Balasubramanian <vishal.bala.nps@gmail.com>]

Adds initial support for the Samsung Galaxy Tab S7 FE LTE (SM-T735),
a tablet based on the Qualcomm Snapdragon 750G (SM7225) SoC.

The following is supported:
- Framebuffer
- Volume Up, Down and Power Buttons
- UFS Storage and SD Card
- USB
- Modem, ADSP and CDSP
- Wi-Fi and Bluetooth
- Cellular Data and SMS

The reserved-memory layout deviates from sm6350.dtsi. The ADSP
firmware shipped on this device requires a 64 MiB carveout, so the
ADSP, camera, NPU, video and CDSP regions are redeclared at the
addresses used by the vendor firmware. The bootloader also reserves
additional memory (removed_region enlarged to 0x5e00000, plus the
fastuh region); without these reservations the device hangs under
memory pressure.

qcom,msm-id and qcom,board-id are required for the Samsung
bootloader to boot the kernel.

Signed-off-by: Vishal Balasubramanian <vishal.bala.nps@gmail.com>
---
 arch/arm64/boot/dts/qcom/Makefile                  |   1 +
 .../boot/dts/qcom/sm7225-samsung-gts7xllite.dts    | 586 +++++++++++++++++++++
 2 files changed, 587 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 88230c4e00ea91ea2132f8d5ff2b971b5f682559..4c6fdaa14347b2d4cd569096bf4467d9ff5c2dc2 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -397,6 +397,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= sm6375-sony-xperia-murray-pdx225.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm7125-xiaomi-curtana.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm7125-xiaomi-joyeuse.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm7225-fairphone-fp4.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= sm7225-samsung-gts7xllite.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm7325-motorola-dubai.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm7325-motorola-dubai-csot.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm7325-motorola-dubai-tianma.dtb
diff --git a/arch/arm64/boot/dts/qcom/sm7225-samsung-gts7xllite.dts b/arch/arm64/boot/dts/qcom/sm7225-samsung-gts7xllite.dts
new file mode 100644
index 0000000000000000000000000000000000000000..e472e3016cb9e1b3a3b015ce64f53e3896d32d32
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm7225-samsung-gts7xllite.dts
@@ -0,0 +1,586 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2026, Vishal Balasubramanian <vishal.bala.nps@gmail.com>
+ */
+
+/dts-v1/;
+
+#define PMK8350_SID 6
+
+#include <dt-bindings/arm/qcom,ids.h>
+#include <dt-bindings/firmware/qcom,scm.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+#include "sm7225.dtsi"
+#include "pm6150l.dtsi"
+#include "pm6350.dtsi"
+#include "pmk8350.dtsi"
+
+/delete-node/ &pil_adsp_mem;
+/delete-node/ &pil_camera_mem;
+/delete-node/ &pil_npu_mem;
+/delete-node/ &pil_video_mem;
+/delete-node/ &pil_cdsp_mem;
+/delete-node/ &ramoops;
+/delete-node/ &removed_region;
+
+/ {
+	model = "Samsung Galaxy Tab S7 FE LTE";
+	compatible = "samsung,gts7xllite", "qcom,sm7225";
+	chassis-type = "tablet";
+
+	qcom,msm-id = <QCOM_ID_SM7225 0x10000>;
+	qcom,board-id = <8 5>;
+
+	aliases {
+		serial0 = &uart9;
+		serial1 = &uart1;
+	};
+
+	chosen {
+		framebuffer0: framebuffer {
+			compatible = "simple-framebuffer";
+			memory-region = <&cont_splash_memory>;
+			width = <1600>;
+			height = <2560>;
+			stride = <(1600 * 4)>;
+			format = "a8r8g8b8";
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpio_keys_pin>;
+
+		key-volume-up {
+			label = "Volume Up";
+			linux,code = <KEY_VOLUMEUP>;
+			gpios = <&pm6350_gpios 2 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	reserved-memory {
+		pil_adsp_mem: memory@84800000 {
+			reg = <0x0 0x84800000 0x0 0x4000000>;
+			no-map;
+		};
+
+		pil_camera_mem: memory@88800000 {
+			reg = <0x0 0x88800000 0x0 0x500000>;
+			no-map;
+		};
+
+		pil_npu_mem: memory@88d00000 {
+			reg = <0x0 0x88d00000 0x0 0x500000>;
+			no-map;
+		};
+
+		pil_video_mem: memory@89200000 {
+			reg = <0x0 0x89200000 0x0 0x500000>;
+			no-map;
+		};
+
+		pil_cdsp_mem: memory@89700000 {
+			reg = <0x0 0x89700000 0x0 0x1e00000>;
+			no-map;
+		};
+
+		fastuh_mem: memory@b0200000 {
+			reg = <0x0 0xb0200000 0x0 0x200000>;
+			no-map;
+		};
+
+		ramoops@b1b00000 {
+			compatible = "ramoops";
+			reg = <0x0 0xb1b00000 0x0 0x100000>;
+			record-size = <0x40000>;
+			console-size = <0x40000>;
+			ftrace-size = <0x40000>;
+			pmsg-size = <0x40000>;
+		};
+
+		removed_region: memory@c0000000 {
+			reg = <0x0 0xc0000000 0x0 0x5e00000>;
+			no-map;
+		};
+
+		memory@efe01000 {
+			compatible = "qcom,rmtfs-mem";
+			reg = <0 0xefe01000 0 0x600000>;
+			no-map;
+
+			qcom,client-id = <1>;
+			qcom,vmid = <QCOM_SCM_VMID_MSS_MSA>;
+		};
+	};
+};
+
+&adsp {
+	firmware-name = "qcom/sm7225/Samsung/gts7xllite/adsp.mbn";
+
+	status = "okay";
+};
+
+&apps_rsc {
+	regulators-0 {
+		compatible = "qcom,pm6350-rpmh-regulators";
+		qcom,pmic-id = "a";
+
+		vreg_s1a: smps1 {
+			regulator-name = "vreg_s1a";
+			regulator-min-microvolt = <1000000>;
+			regulator-max-microvolt = <1200000>;
+		};
+
+		vreg_s2a: smps2 {
+			regulator-name = "vreg_s2a";
+			regulator-min-microvolt = <1503000>;
+			regulator-max-microvolt = <2048000>;
+		};
+
+		vreg_l2a: ldo2 {
+			regulator-name = "vreg_l2a";
+			regulator-min-microvolt = <1503000>;
+			regulator-max-microvolt = <1980000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l3a: ldo3 {
+			regulator-name = "vreg_l3a";
+			regulator-min-microvolt = <2700000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l4a: ldo4 {
+			regulator-name = "vreg_l4a";
+			regulator-min-microvolt = <352000>;
+			regulator-max-microvolt = <801000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l5a: ldo5 {
+			regulator-name = "vreg_l5a";
+			regulator-min-microvolt = <1503000>;
+			regulator-max-microvolt = <1980000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l6a: ldo6 {
+			regulator-name = "vreg_l6a";
+			regulator-min-microvolt = <1710000>;
+			regulator-max-microvolt = <3544000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l7a: ldo7 {
+			regulator-name = "vreg_l7a";
+			regulator-min-microvolt = <1620000>;
+			regulator-max-microvolt = <1980000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l8a: ldo8 {
+			regulator-name = "vreg_l8a";
+			regulator-min-microvolt = <2800000>;
+			regulator-max-microvolt = <2800000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l9a: ldo9 {
+			regulator-name = "vreg_l9a";
+			regulator-min-microvolt = <1650000>;
+			regulator-max-microvolt = <3401000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l11a: ldo11 {
+			regulator-name = "vreg_l11a";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <2000000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l12a: ldo12 {
+			regulator-name = "vreg_l12a";
+			regulator-min-microvolt = <1620000>;
+			regulator-max-microvolt = <1980000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l13a: ldo13 {
+			regulator-name = "vreg_l13a";
+			regulator-min-microvolt = <570000>;
+			regulator-max-microvolt = <650000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l14a: ldo14 {
+			regulator-name = "vreg_l14a";
+			regulator-min-microvolt = <1700000>;
+			regulator-max-microvolt = <1900000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l15a: ldo15 {
+			regulator-name = "vreg_l15a";
+			regulator-min-microvolt = <1100000>;
+			regulator-max-microvolt = <1305000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l16a: ldo16 {
+			regulator-name = "vreg_l16a";
+			regulator-min-microvolt = <830000>;
+			regulator-max-microvolt = <921000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l18a: ldo18 {
+			regulator-name = "vreg_l18a";
+			regulator-min-microvolt = <788000>;
+			regulator-max-microvolt = <1049000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l19a: ldo19 {
+			regulator-name = "vreg_l19a";
+			regulator-min-microvolt = <1080000>;
+			regulator-max-microvolt = <1305000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l20a: ldo20 {
+			regulator-name = "vreg_l20a";
+			regulator-min-microvolt = <530000>;
+			regulator-max-microvolt = <801000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l21a: ldo21 {
+			regulator-name = "vreg_l21a";
+			regulator-min-microvolt = <751000>;
+			regulator-max-microvolt = <825000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l22a: ldo22 {
+			regulator-name = "vreg_l22a";
+			regulator-min-microvolt = <1080000>;
+			regulator-max-microvolt = <1305000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+	};
+
+	regulators-1 {
+		compatible = "qcom,pm6150l-rpmh-regulators";
+		qcom,pmic-id = "e";
+
+		vreg_s8e: smps8 {
+			regulator-name = "vreg_s8e";
+			regulator-min-microvolt = <313000>;
+			regulator-max-microvolt = <1395000>;
+		};
+
+		vreg_l1e: ldo1 {
+			regulator-name = "vreg_l1e";
+			regulator-min-microvolt = <1620000>;
+			regulator-max-microvolt = <1980000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l2e: ldo2 {
+			regulator-name = "vreg_l2e";
+			regulator-min-microvolt = <1170000>;
+			regulator-max-microvolt = <1305000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l3e: ldo3 {
+			regulator-name = "vreg_l3e";
+			regulator-min-microvolt = <1100000>;
+			regulator-max-microvolt = <1299000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l4e: ldo4 {
+			regulator-name = "vreg_l4e";
+			regulator-min-microvolt = <1620000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l5e: ldo5 {
+			regulator-name = "vreg_l5e";
+			regulator-min-microvolt = <1620000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l6e: ldo6 {
+			regulator-name = "vreg_l6e";
+			regulator-min-microvolt = <1700000>;
+			regulator-max-microvolt = <2950000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+			regulator-allow-set-load;
+			regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM
+						   RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l7e: ldo7 {
+			regulator-name = "vreg_l7e";
+			regulator-min-microvolt = <2700000>;
+			regulator-max-microvolt = <3544000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l8e: ldo8 {
+			regulator-name = "vreg_l8e";
+			regulator-min-microvolt = <1620000>;
+			regulator-max-microvolt = <2000000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l9e: ldo9 {
+			regulator-name = "vreg_l9e";
+			regulator-min-microvolt = <2700000>;
+			regulator-max-microvolt = <2960000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+			regulator-allow-set-load;
+			regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM
+						   RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l10e: ldo10 {
+			regulator-name = "vreg_l10e";
+			regulator-min-microvolt = <3000000>;
+			regulator-max-microvolt = <3401000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l11e: ldo11 {
+			regulator-name = "vreg_l11e";
+			regulator-min-microvolt = <3000000>;
+			regulator-max-microvolt = <3401000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_bob: bob {
+			regulator-name = "vreg_bob";
+			regulator-min-microvolt = <1620000>;
+			regulator-max-microvolt = <5492000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_AUTO>;
+			regulator-allow-bypass;
+		};
+	};
+};
+
+&cdsp {
+	firmware-name = "qcom/sm7225/Samsung/gts7xllite/cdsp.mbn";
+
+	status = "okay";
+};
+
+&dispcc {
+	/* Disable for now to keep framebuffer alive */
+	status = "disabled";
+};
+
+&ipa {
+	firmware-name = "qcom/sm7225/Samsung/gts7xllite/lagoon_ipa_fws.mbn";
+
+	status = "okay";
+};
+
+&mpss {
+	firmware-name = "qcom/sm7225/Samsung/gts7xllite/modem.mbn";
+
+	status = "okay";
+};
+
+&pm6350_gpios {
+	gpio_keys_pin: gpio-keys-state {
+		pins = "gpio2";
+		function = PMIC_GPIO_FUNC_NORMAL;
+		bias-pull-up;
+		input-enable;
+		power-source = <0>;
+	};
+};
+
+&pm6350_resin {
+	linux,code = <KEY_VOLUMEDOWN>;
+
+	status = "okay";
+};
+
+&pmk8350_pon {
+	status = "disabled";
+};
+
+&pmk8350_rtc {
+	status = "okay";
+};
+
+&qup_uart1_cts {
+	/delete-property/ bias-disable;
+	bias-bus-hold;
+};
+
+&qup_uart1_rts {
+	drive-strength = <2>;
+	/delete-property/ bias-pull-down;
+	bias-disable;
+};
+
+&qup_uart1_rx {
+	/delete-property/ bias-disable;
+	bias-pull-up;
+};
+
+&qup_uart1_tx {
+	drive-strength = <2>;
+	/delete-property/ bias-pull-up;
+	bias-disable;
+};
+
+&qupv3_id_0 {
+	status = "okay";
+};
+
+&qupv3_id_1 {
+	status = "okay";
+};
+
+&sdc2_off_state {
+	sd-cd-pins {
+		pins = "gpio94";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+};
+
+&sdc2_on_state {
+	sd-cd-pins {
+		pins = "gpio94";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-up;
+	};
+};
+
+&sdhc_2 {
+	vmmc-supply = <&vreg_l9e>;
+	vqmmc-supply = <&vreg_l6e>;
+
+	cd-gpios = <&tlmm 94 GPIO_ACTIVE_LOW>;
+
+	status = "okay";
+};
+
+&tlmm {
+	qup_uart1_sleep_cts: qup-uart1-sleep-cts-state {
+		pins = "gpio61";
+		function = "gpio";
+		bias-bus-hold;
+	};
+
+	qup_uart1_sleep_rts: qup-uart1-sleep-rts-state {
+		pins = "gpio62";
+		function = "gpio";
+		bias-pull-down;
+	};
+
+	qup_uart1_sleep_tx: qup-uart1-sleep-tx-state {
+		pins = "gpio63";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	qup_uart1_sleep_rx: qup-uart1-sleep-rx-state {
+		pins = "gpio64";
+		function = "gpio";
+		bias-pull-up;
+	};
+};
+
+&uart1 {
+	/delete-property/ interrupts;
+	interrupts-extended = <&intc GIC_SPI 602 IRQ_TYPE_LEVEL_HIGH>,
+			      <&tlmm 64 IRQ_TYPE_EDGE_FALLING>;
+
+	pinctrl-names = "default", "sleep";
+	pinctrl-1 = <&qup_uart1_sleep_cts>, <&qup_uart1_sleep_rts>,
+		    <&qup_uart1_sleep_tx>, <&qup_uart1_sleep_rx>;
+
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,wcn3991-bt";
+
+		vddio-supply = <&vreg_l11a>;
+		vddxo-supply = <&vreg_l7a>;
+		vddrf-supply = <&vreg_l2e>;
+		vddch0-supply = <&vreg_l10e>;
+
+		max-speed = <3200000>;
+	};
+};
+
+&uart9 {
+	status = "okay";
+};
+
+&ufs_mem_hc {
+	vcc-supply = <&vreg_l7e>;
+	vcc-max-microamp = <800000>;
+	vccq2-supply = <&vreg_l12a>;
+	vccq2-max-microamp = <800000>;
+
+	status = "okay";
+};
+
+&ufs_mem_phy {
+	vdda-phy-supply = <&vreg_l18a>;
+	vdda-pll-supply = <&vreg_l22a>;
+
+	status = "okay";
+};
+
+&usb_1 {
+	status = "okay";
+};
+
+&usb_1_dwc3 {
+	maximum-speed = "super-speed";
+	dr_mode = "otg";
+};
+
+&usb_1_hsphy {
+	vdd-supply = <&vreg_l18a>;
+	vdda-pll-supply = <&vreg_l2a>;
+	vdda-phy-dpdm-supply = <&vreg_l3a>;
+
+	status = "okay";
+};
+
+&usb_1_qmpphy {
+	vdda-phy-supply = <&vreg_l16a>;
+	vdda-pll-supply = <&vreg_l22a>;
+
+	status = "okay";
+};
+
+&wifi {
+	vdd-0.8-cx-mx-supply = <&vreg_l4a>;
+	vdd-1.8-xo-supply = <&vreg_l7a>;
+	vdd-1.3-rfa-supply = <&vreg_l2e>;
+	vdd-3.3-ch0-supply = <&vreg_l10e>;
+	vdd-3.3-ch1-supply = <&vreg_l11e>;
+
+	status = "okay";
+};

-- 
2.47.3