[PATCH 8/8] ARM: dts: qcom: Add Samsung Galaxy S4

From: Alexandre MINETTE via B4 Relay

Date: Tue Apr 21 2026 - 05:47:43 EST

From: Alexandre MINETTE <contact@xxxxxxxxxxx>

Add a device tree for the Samsung Galaxy S4, codenamed jflte.

This has been tested on a Samsung Galaxy S4 GT-I9505. The initial support
covers UART, USB peripheral mode with USB networking, the front LED and
the physical buttons.

Signed-off-by: Alexandre MINETTE <contact@xxxxxxxxxxx>
---
arch/arm/boot/dts/qcom/Makefile | 1 +
.../boot/dts/qcom/qcom-apq8064-samsung-jflte.dts | 484 +++++++++++++++++++++
2 files changed, 485 insertions(+)

diff --git a/arch/arm/boot/dts/qcom/Makefile b/arch/arm/boot/dts/qcom/Makefile
index 32a44b02d2fa..c23c961f79e3 100644
--- a/arch/arm/boot/dts/qcom/Makefile
+++ b/arch/arm/boot/dts/qcom/Makefile
@@ -12,6 +12,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \
qcom-apq8064-ifc6410.dtb \
qcom-apq8064-sony-xperia-lagan-yuga.dtb \
qcom-apq8064-asus-nexus7-flo.dtb \
+ qcom-apq8064-samsung-jflte.dtb \
qcom-apq8064-lg-nexus4-mako.dtb \
qcom-apq8074-dragonboard.dtb \
qcom-ipq4018-ap120c-ac.dtb \
diff --git a/arch/arm/boot/dts/qcom/qcom-apq8064-samsung-jflte.dts b/arch/arm/boot/dts/qcom/qcom-apq8064-samsung-jflte.dts
new file mode 100644
index 000000000000..9e5faf7c086f
--- /dev/null
+++ b/arch/arm/boot/dts/qcom/qcom-apq8064-samsung-jflte.dts
@@ -0,0 +1,484 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/mfd/qcom-rpm.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+
+#include "qcom-apq8064-v2.0.dtsi"
+#include "pm8821.dtsi"
+#include "pm8921.dtsi"
+
+/ {
+ model = "Samsung Galaxy S4 (jflte)";
+ compatible = "samsung,jflte", "qcom,apq8064";
+ chassis-type = "handset";
+
+ aliases {
+ serial0 = &gsbi7_serial;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ ramoops@88d00000 {
+ compatible = "ramoops";
+ reg = <0x88d00000 0x100000>;
+ record-size = <0x20000>;
+ console-size = <0x20000>;
+ ftrace-size = <0x20000>;
+ };
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio_keys_default>;
+
+ key-home {
+ label = "Home";
+ gpios = <&pm8921_gpio 30 GPIO_ACTIVE_LOW>;
+ debounce-interval = <5>;
+ linux,code = <KEY_HOME>;
+ wakeup-source;
+ };
+
+ key-volume-up {
+ label = "Volume Up";
+ gpios = <&pm8921_gpio 35 GPIO_ACTIVE_LOW>;
+ debounce-interval = <5>;
+ linux,code = <KEY_VOLUMEUP>;
+ wakeup-source;
+ };
+
+ key-volume-down {
+ label = "Volume Down";
+ gpios = <&pm8921_gpio 37 GPIO_ACTIVE_LOW>;
+ debounce-interval = <5>;
+ linux,code = <KEY_VOLUMEDOWN>;
+ wakeup-source;
+ };
+ };
+
+ i2c-muic {
+ compatible = "i2c-gpio";
+ sda-gpios = <&tlmm_pinmux 22 GPIO_ACTIVE_HIGH>;
+ scl-gpios = <&tlmm_pinmux 23 GPIO_ACTIVE_HIGH>;
+ i2c-gpio,delay-us = <2>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ max77693: pmic@66 {
+ compatible = "maxim,max77693";
+ reg = <0x66>;
+ interrupt-parent = <&tlmm_pinmux>;
+ interrupts = <55 IRQ_TYPE_EDGE_FALLING>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&muic_int_default_state>;
+
+ muic: muic {
+ compatible = "maxim,max77693-muic";
+ safeout1-supply = <&esafeout1_reg>;
+ safeout2-supply = <&esafeout2_reg>;
+ };
+
+ regulators {
+ esafeout1_reg: ESAFEOUT1 {
+ regulator-name = "ESAFEOUT1";
+ };
+
+ esafeout2_reg: ESAFEOUT2 {
+ regulator-name = "ESAFEOUT2";
+ };
+ };
+ };
+ };
+
+ i2c-led {
+ compatible = "i2c-gpio";
+ sda-gpios = <&tlmm_pinmux 6 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ scl-gpios = <&tlmm_pinmux 7 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ i2c-gpio,delay-us = <2>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led-controller@30 {
+ compatible = "panasonic,an30259a";
+ reg = <0x30>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@1 {
+ reg = <1>;
+ function = LED_FUNCTION_STATUS;
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ led@2 {
+ reg = <2>;
+ function = LED_FUNCTION_STATUS;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led@3 {
+ reg = <3>;
+ function = LED_FUNCTION_STATUS;
+ color = <LED_COLOR_ID_BLUE>;
+ };
+ };
+ };
+};
+
+&gsbi7 {
+ qcom,mode = <GSBI_PROT_I2C_UART>;
+
+ status = "okay";
+};
+
+&gsbi7_serial {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gsbi7_uart_pin_a>;
+
+ status = "okay";
+};
+
+&pm8821 {
+ interrupts-extended = <&tlmm_pinmux 76 IRQ_TYPE_LEVEL_LOW>;
+};
+
+&pm8921 {
+ interrupts-extended = <&tlmm_pinmux 74 IRQ_TYPE_LEVEL_LOW>;
+};
+
+&riva {
+ pinctrl-names = "default";
+ pinctrl-0 = <&riva_wlan_pin_a>, <&riva_bt_pin_a>, <&riva_fm_pin_a>;
+
+ vddcx-supply = <&pm8921_s3>;
+ vddmx-supply = <&pm8921_l24>;
+ vddpx-supply = <&pm8921_s4>;
+
+ status = "okay";
+
+ iris {
+ vddxo-supply = <&pm8921_l4>;
+ vddrfa-supply = <&pm8921_s2>;
+ vddpa-supply = <&pm8921_l10>;
+ vdddig-supply = <&pm8921_lvs2>;
+ };
+};
+
+&rpm {
+ regulators {
+ compatible = "qcom,rpm-pm8921-regulators";
+
+ vdd_l1_l2_l12_l18-supply = <&pm8921_s4>;
+ vdd_l24-supply = <&pm8921_s1>;
+ vdd_l25-supply = <&pm8921_s1>;
+ vdd_l26-supply = <&pm8921_s7>;
+ vdd_l27-supply = <&pm8921_s7>;
+ vdd_l28-supply = <&pm8921_s7>;
+ vin_lvs1_3_6-supply = <&pm8921_s4>;
+ vin_lvs2-supply = <&pm8921_s1>;
+ vin_lvs4_5_7-supply = <&pm8921_s4>;
+
+ pm8921_l1: l1 {
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-always-on;
+ bias-pull-down;
+ };
+
+ /* mipi_dsi.1-dsi1_pll_vdda */
+ pm8921_l2: l2 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ bias-pull-down;
+ };
+
+ /* msm_otg-HSUSB_3p3 */
+ pm8921_l3: l3 {
+ regulator-min-microvolt = <3075000>;
+ regulator-max-microvolt = <3500000>;
+ bias-pull-down;
+ };
+
+ /* msm_otg-HSUSB_1p8 */
+ pm8921_l4: l4 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ /* msm_sdcc.1-sdc_vdd */
+ pm8921_l5: l5 {
+ regulator-min-microvolt = <2950000>;
+ regulator-max-microvolt = <2950000>;
+ bias-pull-down;
+ };
+
+ /* earjack_debug */
+ pm8921_l6: l6 {
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ bias-pull-down;
+ };
+
+ /* mipi_dsi.1-dsi_vci */
+ pm8921_l8: l8 {
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <3000000>;
+ bias-pull-down;
+ };
+
+ /* wcnss_wlan.0-iris_vddpa */
+ pm8921_l10: l10 {
+ regulator-min-microvolt = <2900000>;
+ regulator-max-microvolt = <2900000>;
+ bias-pull-down;
+ };
+
+ /* mipi_dsi.1-dsi1_avdd */
+ pm8921_l11: l11 {
+ regulator-min-microvolt = <2850000>;
+ regulator-max-microvolt = <2850000>;
+ bias-pull-down;
+ };
+
+ /* touch_vdd */
+ pm8921_l15: l15 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <2950000>;
+ bias-pull-down;
+ };
+
+ /* slimport_dvdd */
+ pm8921_l18: l18 {
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ bias-pull-down;
+ };
+
+ /* touch_io */
+ pm8921_l22: l22 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ bias-pull-down;
+ };
+
+ /*
+ * mipi_dsi.1-dsi_vddio
+ * pil_qdsp6v4.1-pll_vdd
+ * pil_qdsp6v4.2-pll_vdd
+ * msm_ehci_host.0-HSUSB_1p8
+ * msm_ehci_host.1-HSUSB_1p8
+ */
+ pm8921_l23: l23 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ bias-pull-down;
+ };
+
+ /*
+ * tabla2x-slim-CDC_VDDA_A_1P2V
+ * tabla2x-slim-VDDD_CDC_D
+ */
+ pm8921_l24: l24 {
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1150000>;
+ bias-pull-down;
+ };
+
+ pm8921_l25: l25 {
+ regulator-min-microvolt = <1250000>;
+ regulator-max-microvolt = <1250000>;
+ regulator-always-on;
+ bias-pull-down;
+ };
+
+ pm8921_l26: l26 {
+ regulator-min-microvolt = <375000>;
+ regulator-max-microvolt = <1050000>;
+ regulator-always-on;
+ bias-pull-down;
+ };
+
+ pm8921_l27: l27 {
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ };
+
+ pm8921_l28: l28 {
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <1050000>;
+ bias-pull-down;
+ };
+
+ /* wcnss_wlan.0-iris_vddio */
+ pm8921_lvs1: lvs1 {
+ bias-pull-down;
+ };
+
+ /* wcnss_wlan.0-iris_vdddig */
+ pm8921_lvs2: lvs2 {
+ bias-pull-down;
+ };
+
+ pm8921_lvs3: lvs3 {
+ bias-pull-down;
+ };
+
+ pm8921_lvs4: lvs4 {
+ bias-pull-down;
+ };
+
+ pm8921_lvs5: lvs5 {
+ bias-pull-down;
+ };
+
+ /* mipi_dsi.1-dsi_iovcc */
+ pm8921_lvs6: lvs6 {
+ bias-pull-down;
+ };
+
+ /*
+ * pil_riva-pll_vdd
+ * lvds.0-lvds_vdda
+ * mipi_dsi.1-dsi1_vddio
+ * hdmi_msm.0-hdmi_vdda
+ */
+ pm8921_lvs7: lvs7 {
+ bias-pull-down;
+ };
+
+ pm8921_ncp: ncp {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ qcom,switch-mode-frequency = <1600000>;
+ };
+
+ /* Buck SMPS */
+ pm8921_s1: s1 {
+ regulator-always-on;
+ regulator-min-microvolt = <1225000>;
+ regulator-max-microvolt = <1225000>;
+ qcom,switch-mode-frequency = <3200000>;
+ bias-pull-down;
+ };
+
+ pm8921_s2: s2 {
+ regulator-min-microvolt = <1300000>;
+ regulator-max-microvolt = <1300000>;
+ qcom,switch-mode-frequency = <1600000>;
+ bias-pull-down;
+ };
+
+ /* msm otg HSUSB_VDDCX */
+ pm8921_s3: s3 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <1150000>;
+ qcom,switch-mode-frequency = <4800000>;
+ bias-pull-down;
+ };
+
+ /*
+ * msm_sdcc.1-sdc-vdd_io
+ * tabla2x-slim-CDC_VDDA_RX
+ * tabla2x-slim-CDC_VDDA_TX
+ * tabla2x-slim-CDC_VDD_CP
+ * tabla2x-slim-VDDIO_CDC
+ */
+ pm8921_s4: s4 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ qcom,switch-mode-frequency = <1600000>;
+ bias-pull-down;
+ qcom,force-mode = <QCOM_RPM_FORCE_MODE_AUTO>;
+ };
+
+ /*
+ * supply vdd_l26, vdd_l27, vdd_l28
+ */
+ pm8921_s7: s7 {
+ regulator-min-microvolt = <1300000>;
+ regulator-max-microvolt = <1300000>;
+ qcom,switch-mode-frequency = <3200000>;
+ };
+
+ pm8921_s8: s8 {
+ regulator-min-microvolt = <2200000>;
+ regulator-max-microvolt = <2200000>;
+ qcom,switch-mode-frequency = <1600000>;
+ };
+ };
+};
+
+/* eMMC */
+&sdcc1 {
+ vmmc-supply = <&pm8921_l5>;
+ vqmmc-supply = <&pm8921_s4>;
+
+ status = "okay";
+};
+
+&pm8921_gpio {
+ gpio_keys_default: gpio-keys-default-state {
+ pins = "gpio30", "gpio35", "gpio37";
+ function = PMIC_GPIO_FUNC_NORMAL;
+ input-enable;
+ bias-pull-up;
+ power-source = <PM8921_GPIO_S4>;
+ };
+};
+
+&tlmm_pinmux {
+ gsbi7_uart_pin_a: gsbi7-uart-pin-active-state {
+ rx-pins {
+ pins = "gpio83";
+ function = "gsbi7";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ tx-pins {
+ pins = "gpio82";
+ function = "gsbi7";
+ drive-strength = <4>;
+ bias-disable;
+ };
+ };
+
+ muic_int_default_state: muic-int-default-state {
+ pins = "gpio55";
+ function = "gpio";
+ drive-strength = <2>;
+ input-enable;
+ bias-disable;
+ };
+};
+
+&usb_hs1_phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l4>;
+ extcon = <&muic>;
+};
+
+&usb_id {
+ status = "okay";
+};
+
+&usb1 {
+ dr_mode = "otg";
+ extcon = <&muic>, <&usb_id>;
+ status = "okay";
+};

--
2.43.0