arm64: dts: qcom: Add device tree for Samsung J5 2015 (samsung-j5)

Samsung J5 2015 is a MSM8916 based Smartphone. It is similar to some of the
other MSM8916 devices, especially the Samsung ones.

With this patch initial support for the following is added:
  - eMMC/SD card
  - Buttons
  - USB (although no suiting MUIC driver currently)
  - UART (untested for lack of equipment)
  - WiFi/Bluetooth (WCNSS)

It is worth noting that Samsung J5 with MSM8916 exists in different
generations (e.g Samsung J5 2015 and Samsung J5 2016) which each have
different models (e.g. samsung-j5nlte, samsung-j5xnlte, etc). This patch
is only regarding the 2015 generation, but should work with all of it's
models, as far as we could test.
Co-developed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Julian Ribbeck <julian.ribbeck@gmx.de>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211116200734.73920-1-julian.ribbeck@gmx.de

arch/arm64/boot/dts/qcom/Makefile

@@ -15,6 +15,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-longcheer-l8910.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-mtp.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-samsung-a3u-eur.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-samsung-a5u-eur.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-samsung-j5.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-samsung-serranove.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-wingtech-wt88047.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8992-bullhead-rev-101.dtb

arch/arm64/boot/dts/qcom/msm8916-samsung-j5.dts

+// SPDX-License-Identifier: GPL-2.0-only
+
+/dts-v1/;
+
+#include "msm8916-pm8916.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Samsung Galaxy J5 (2015)";
+	compatible = "samsung,j5", "qcom,msm8916";
+	chassis-type = "handset";
+
+	aliases {
+		serial0 = &blsp1_uart2;
+	};
+
+	chosen {
+		stdout-path = "serial0";
+	};
+
+	reserved-memory {
+		/* Additional memory used by Samsung firmware modifications */
+		tz-apps@85500000 {
+			reg = <0x0 0x85500000 0x0 0xb00000>;
+			no-map;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpio_keys_default>;
+
+		label = "GPIO Buttons";
+
+		volume-up {
+			label = "Volume Up";
+			gpios = <&msmgpio 107 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_VOLUMEUP>;
+		};
+
+		home-key {
+			lable = "Home Key";
+			gpios = <&msmgpio 109 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_HOMEPAGE>;
+		};
+	};
+};
+
+&blsp1_uart2 {
+	status = "okay";
+};
+
+&pm8916_resin {
+	status = "okay";
+	linux,code = <KEY_VOLUMEDOWN>;
+};
+
+/* FIXME: Replace with SM5703 MUIC when driver is available */
+&pm8916_usbin {
+	status = "okay";
+};
+
+&pronto {
+	status = "okay";
+};
+
+&sdhc_1 {
+	status = "okay";
+
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&sdc1_clk_on &sdc1_cmd_on &sdc1_data_on>;
+	pinctrl-1 = <&sdc1_clk_off &sdc1_cmd_off &sdc1_data_off>;
+};
+
+&sdhc_2 {
+	status = "okay";
+
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&sdc2_clk_on &sdc2_cmd_on &sdc2_data_on &sdc2_cd_on>;
+	pinctrl-1 = <&sdc2_clk_off &sdc2_cmd_off &sdc2_data_off &sdc2_cd_off>;
+
+	cd-gpios = <&msmgpio 38 GPIO_ACTIVE_LOW>;
+};
+
+&usb {
+	status = "okay";
+	dr_mode = "peripheral";
+	extcon = <&pm8916_usbin>;
+};
+
+&usb_hs_phy {
+	extcon = <&pm8916_usbin>;
+	qcom,init-seq = /bits/ 8 <0x1 0x19 0x2 0x0b>;
+};
+
+&smd_rpm_regulators {
+	vdd_l1_l2_l3-supply = <&pm8916_s3>;
+	vdd_l4_l5_l6-supply = <&pm8916_s4>;
+	vdd_l7-supply = <&pm8916_s4>;
+
+	s3 {
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1300000>;
+	};
+
+	s4 {
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <2100000>;
+	};
+
+	l1 {
+		regulator-min-microvolt = <1225000>;
+		regulator-max-microvolt = <1225000>;
+	};
+
+	l2 {
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+	};
+
+	l4 {
+		regulator-min-microvolt = <2050000>;
+		regulator-max-microvolt = <2050000>;
+	};
+
+	l5 {
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	l6 {
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	l7 {
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	l8 {
+		regulator-min-microvolt = <2850000>;
+		regulator-max-microvolt = <2900000>;
+	};
+
+	l9 {
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	l10 {
+		regulator-min-microvolt = <2700000>;
+		regulator-max-microvolt = <2800000>;
+	};
+
+	l11 {
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <2950000>;
+		regulator-allow-set-load;
+		regulator-system-load = <200000>;
+	};
+
+	l12 {
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <2950000>;
+	};
+
+	l13 {
+		regulator-min-microvolt = <3075000>;
+		regulator-max-microvolt = <3075000>;
+	};
+
+	l14 {
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	l15 {
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	l16 {
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	l17 {
+		regulator-min-microvolt = <3000000>;
+		regulator-max-microvolt = <3000000>;
+	};
+
+	l18 {
+		regulator-min-microvolt = <2700000>;
+		regulator-max-microvolt = <2700000>;
+	};
+};
+
+&msmgpio {
+	gpio_keys_default: gpio-keys-default {
+		pins = "gpio107", "gpio109";
+		function = "gpio";
+
+		drive-strength = <2>;
+		bias-pull-up;
+	};
+};