Samsung Galaxy Grand 2 is a phone based on MSM8226. It's similar to the
other Samsung devices based on MSM8226 with only a few minor differences.

The device trees contain initial support with:
 - GPIO keys
 - Regulator haptic
 - SDHCI (internal and external storage)
 - UART (on USB connector via the TI TSU6721 MUIC)
 - Regulators
 - Touchscreen
 - Accelerometer

Signed-off-by: Raymond Hackley <raymondhack...@protonmail.com>
Reviewed-by: Luca Weiss <l...@lucaweiss.eu>
Reviewed-by: Konrad Dybcio <konrad.dyb...@linaro.org>
---
 arch/arm/boot/dts/qcom/Makefile               |   1 +
 .../dts/qcom/qcom-msm8226-samsung-ms013g.dts  | 386 ++++++++++++++++++
 2 files changed, 387 insertions(+)
 create mode 100644 arch/arm/boot/dts/qcom/qcom-msm8226-samsung-ms013g.dts

diff --git a/arch/arm/boot/dts/qcom/Makefile b/arch/arm/boot/dts/qcom/Makefile
index ccd4ce6353df..f06c6d425e91 100644
--- a/arch/arm/boot/dts/qcom/Makefile
+++ b/arch/arm/boot/dts/qcom/Makefile
@@ -28,6 +28,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \
        qcom-msm8226-microsoft-dempsey.dtb \
        qcom-msm8226-microsoft-makepeace.dtb \
        qcom-msm8226-microsoft-moneypenny.dtb \
+       qcom-msm8226-samsung-ms013g.dtb \
        qcom-msm8226-samsung-s3ve3g.dtb \
        qcom-msm8660-surf.dtb \
        qcom-msm8916-samsung-e5.dtb \
diff --git a/arch/arm/boot/dts/qcom/qcom-msm8226-samsung-ms013g.dts 
b/arch/arm/boot/dts/qcom/qcom-msm8226-samsung-ms013g.dts
new file mode 100644
index 000000000000..2ecc5983d365
--- /dev/null
+++ b/arch/arm/boot/dts/qcom/qcom-msm8226-samsung-ms013g.dts
@@ -0,0 +1,386 @@
+// SPDX-License-Identifier: BSD-3-Clause
+
+/dts-v1/;
+
+#include "qcom-msm8226.dtsi"
+#include "pm8226.dtsi"
+
+/delete-node/ &smem_region;
+
+/ {
+       model = "Samsung Galaxy Grand 2";
+       compatible = "samsung,ms013g", "qcom,msm8226";
+       chassis-type = "handset";
+
+       aliases {
+               mmc0 = &sdhc_1; /* SDC1 eMMC slot */
+               mmc1 = &sdhc_2; /* SDC2 SD card slot */
+               serial0 = &blsp1_uart3;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       gpio-hall-sensor {
+               compatible = "gpio-keys";
+
+               pinctrl-0 = <&gpio_hall_sensor_default>;
+               pinctrl-names = "default";
+
+               label = "GPIO Hall Effect Sensor";
+
+               event-hall-sensor {
+                       label = "Hall Effect Sensor";
+                       gpios = <&tlmm 50 GPIO_ACTIVE_LOW>;
+                       linux,input-type = <EV_SW>;
+                       linux,code = <SW_LID>;
+                       linux,can-disable;
+               };
+       };
+
+       gpio-keys {
+               compatible = "gpio-keys";
+
+               pinctrl-0 = <&gpio_keys_default>;
+               pinctrl-names = "default";
+
+               label = "GPIO Buttons";
+
+               button-volume-up {
+                       label = "Volume Up";
+                       gpios = <&tlmm 106 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_VOLUMEUP>;
+               };
+
+               button-volume-down {
+                       label = "Volume Down";
+                       gpios = <&tlmm 107 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_VOLUMEDOWN>;
+               };
+
+               button-home {
+                       label = "Home Key";
+                       gpios = <&tlmm 108 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_HOMEPAGE>;
+               };
+       };
+
+       reg_motor_vdd: regulator-motor-vdd {
+               compatible = "regulator-fixed";
+               regulator-name = "motor_vdd";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpio = <&tlmm 111 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+
+               pinctrl-0 = <&motor_en_default>;
+               pinctrl-names = "default";
+       };
+
+       reg_vdd_tsp_a: regulator-vdd-tsp-a {
+               compatible = "regulator-fixed";
+               regulator-name = "tsp_3p3v";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpio = <&tlmm 31 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+
+               pinctrl-0 = <&tsp_en_default>;
+               pinctrl-names = "default";
+       };
+
+       reserved-memory {
+               smem_region: smem@fa00000 {
+                       reg = <0x0fa00000 0x100000>;
+                       no-map;
+               };
+       };
+
+       vibrator {
+               compatible = "regulator-haptic";
+               haptic-supply = <&reg_motor_vdd>;
+               min-microvolt = <3300000>;
+               max-microvolt = <3300000>;
+       };
+};
+
+&blsp1_i2c2 {
+       status = "okay";
+
+       accelerometer@18 {
+               compatible = "bosch,bma255";
+               reg = <0x18>;
+               interrupts-extended = <&tlmm 64 IRQ_TYPE_EDGE_RISING>;
+
+               vdd-supply = <&pm8226_l19>;
+               vddio-supply = <&pm8226_lvs1>;
+
+               pinctrl-0 = <&accel_int_default>;
+               pinctrl-names = "default";
+
+               mount-matrix = "0", "1", "0",
+                              "-1", "0", "0",
+                              "0", "0", "-1";
+       };
+};
+
+&blsp1_i2c5 {
+       status = "okay";
+
+       touchscreen@20 {
+               compatible = "zinitix,bt541";
+
+               reg = <0x20>;
+               interrupts-extended = <&tlmm 17 IRQ_TYPE_EDGE_FALLING>;
+
+               touchscreen-size-x = <720>;
+               touchscreen-size-y = <1280>;
+
+               vcca-supply = <&reg_vdd_tsp_a>;
+               vdd-supply = <&pm8226_lvs1>;
+
+               pinctrl-0 = <&tsp_int_default>;
+               pinctrl-names = "default";
+       };
+};
+
+&blsp1_uart3 {
+       status = "okay";
+};
+
+&rpm_requests {
+       regulators {
+               compatible = "qcom,rpm-pm8226-regulators";
+
+               pm8226_s3: s3 {
+                       regulator-min-microvolt = <1200000>;
+                       regulator-max-microvolt = <1300000>;
+               };
+
+               pm8226_s4: s4 {
+                       regulator-min-microvolt = <1800000>;
+                       regulator-max-microvolt = <2200000>;
+               };
+
+               pm8226_s5: s5 {
+                       regulator-min-microvolt = <1150000>;
+                       regulator-max-microvolt = <1150000>;
+               };
+
+               pm8226_l1: l1 {
+                       regulator-min-microvolt = <1225000>;
+                       regulator-max-microvolt = <1225000>;
+               };
+
+               pm8226_l2: l2 {
+                       regulator-min-microvolt = <1200000>;
+                       regulator-max-microvolt = <1200000>;
+               };
+
+               pm8226_l3: l3 {
+                       regulator-min-microvolt = <750000>;
+                       regulator-max-microvolt = <1337500>;
+               };
+
+               pm8226_l4: l4 {
+                       regulator-min-microvolt = <1200000>;
+                       regulator-max-microvolt = <1200000>;
+               };
+
+               pm8226_l5: l5 {
+                       regulator-min-microvolt = <1200000>;
+                       regulator-max-microvolt = <1200000>;
+               };
+
+               pm8226_l6: l6 {
+                       regulator-min-microvolt = <1800000>;
+                       regulator-max-microvolt = <1800000>;
+                       regulator-allow-set-load;
+                       regulator-always-on;
+               };
+
+               pm8226_l7: l7 {
+                       regulator-min-microvolt = <1850000>;
+                       regulator-max-microvolt = <1850000>;
+               };
+
+               pm8226_l8: l8 {
+                       regulator-min-microvolt = <1800000>;
+                       regulator-max-microvolt = <1800000>;
+               };
+
+               pm8226_l9: l9 {
+                       regulator-min-microvolt = <2050000>;
+                       regulator-max-microvolt = <2050000>;
+               };
+
+               pm8226_l10: l10 {
+                       regulator-min-microvolt = <1800000>;
+                       regulator-max-microvolt = <1800000>;
+               };
+
+               pm8226_l12: l12 {
+                       regulator-min-microvolt = <1800000>;
+                       regulator-max-microvolt = <1800000>;
+               };
+
+               pm8226_l14: l14 {
+                       regulator-min-microvolt = <2750000>;
+                       regulator-max-microvolt = <2750000>;
+               };
+
+               pm8226_l15: l15 {
+                       regulator-min-microvolt = <2800000>;
+                       regulator-max-microvolt = <2800000>;
+               };
+
+               pm8226_l16: l16 {
+                       regulator-min-microvolt = <3000000>;
+                       regulator-max-microvolt = <3350000>;
+               };
+
+               pm8226_l17: l17 {
+                       regulator-min-microvolt = <2950000>;
+                       regulator-max-microvolt = <2950000>;
+
+                       regulator-system-load = <200000>;
+                       regulator-allow-set-load;
+                       regulator-always-on;
+               };
+
+               pm8226_l18: l18 {
+                       regulator-min-microvolt = <2950000>;
+                       regulator-max-microvolt = <2950000>;
+               };
+
+               pm8226_l19: l19 {
+                       regulator-min-microvolt = <2850000>;
+                       regulator-max-microvolt = <3000000>;
+               };
+
+               pm8226_l20: l20 {
+                       regulator-min-microvolt = <3075000>;
+                       regulator-max-microvolt = <3075000>;
+               };
+
+               pm8226_l21: l21 {
+                       regulator-min-microvolt = <1800000>;
+                       regulator-max-microvolt = <2950000>;
+                       regulator-allow-set-load;
+               };
+
+               pm8226_l22: l22 {
+                       regulator-min-microvolt = <1800000>;
+                       regulator-max-microvolt = <2950000>;
+               };
+
+               pm8226_l23: l23 {
+                       regulator-min-microvolt = <1800000>;
+                       regulator-max-microvolt = <3300000>;
+               };
+
+               pm8226_l24: l24 {
+                       regulator-min-microvolt = <1300000>;
+                       regulator-max-microvolt = <1350000>;
+               };
+
+               pm8226_l25: l25 {
+                       regulator-min-microvolt = <1775000>;
+                       regulator-max-microvolt = <2125000>;
+               };
+
+               pm8226_l26: l26 {
+                       regulator-min-microvolt = <1225000>;
+                       regulator-max-microvolt = <1300000>;
+               };
+
+               pm8226_l27: l27 {
+                       regulator-min-microvolt = <2050000>;
+                       regulator-max-microvolt = <2050000>;
+               };
+
+               pm8226_l28: l28 {
+                       regulator-min-microvolt = <1800000>;
+                       regulator-max-microvolt = <2950000>;
+               };
+
+               pm8226_lvs1: lvs1 {};
+       };
+};
+
+&sdhc_1 {
+       vmmc-supply = <&pm8226_l17>;
+       vqmmc-supply = <&pm8226_l6>;
+
+       bus-width = <8>;
+       non-removable;
+
+       status = "okay";
+};
+
+&sdhc_2 {
+       vmmc-supply = <&pm8226_l18>;
+       vqmmc-supply = <&pm8226_l21>;
+
+       bus-width = <4>;
+       cd-gpios = <&tlmm 38 GPIO_ACTIVE_LOW>;
+
+       pinctrl-0 = <&sdhc2_default_state &sdhc2_cd_default>;
+       pinctrl-names = "default";
+
+       status = "okay";
+};
+
+&tlmm {
+       accel_int_default: accel-int-default-state {
+               pins = "gpio64";
+               function = "gpio";
+               drive-strength = <2>;
+               bias-disable;
+       };
+
+       gpio_hall_sensor_default: gpio-hall-sensor-default-state {
+               pins = "gpio50";
+               function = "gpio";
+               drive-strength = <2>;
+               bias-pull-up;
+       };
+
+       gpio_keys_default: gpio-keys-default-state {
+               pins = "gpio106", "gpio107", "gpio108";
+               function = "gpio";
+               drive-strength = <2>;
+               bias-pull-up;
+       };
+
+       motor_en_default: motor-en-default-state {
+               pins = "gpio111";
+               function = "gpio";
+               drive-strength = <2>;
+               bias-disable;
+       };
+
+       sdhc2_cd_default: sdhc2-cd-default-state {
+               pins = "gpio38";
+               function = "gpio";
+               drive-strength = <2>;
+               bias-disable;
+       };
+
+       tsp_en_default: tsp-en-default-state {
+               pins = "gpio31";
+               function = "gpio";
+               drive-strength = <2>;
+               bias-disable;
+       };
+
+       tsp_int_default: tsp-int-default-state {
+               pins = "gpio17";
+               function = "gpio";
+               drive-strength = <2>;
+               bias-disable;
+       };
+};
-- 
2.39.2



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