arm64: dts: qcom: Introduce support for MSM8998 Sony Yoshino platform

This commit introduces support for the Sony Yoshino platform, using
the MSM8998 SoC, including:
- Sony Xperia XZ1 (codename Poplar),
- Sony Xperia XZ1 Compact (codename Lilac),
- Sony Xperia XZ Premium (codename Maple).

All of the three aforementioned smartphones are sharing a 99%
equal board configuration, with very small differences between
each other, which is the reason for the introduction of a common
msm8998-sony-xperia-yoshino DT.

This base configuration includes regulators and project-wide pin
configurations and it's made to boot to a serial console.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>

arch/arm64/boot/dts/qcom/Makefile

@@ -32,6 +32,9 @@ dtb-$(CONFIG_ARCH_QCOM)	+= msm8998-lenovo-miix-630.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8998-mtp.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8998-oneplus-cheeseburger.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8998-oneplus-dumpling.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= msm8998-sony-xperia-yoshino-lilac.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= msm8998-sony-xperia-yoshino-maple.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= msm8998-sony-xperia-yoshino-poplar.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= qcs404-evb-1000.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= qcs404-evb-4000.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= qrb5165-rb5.dtb

arch/arm64/boot/dts/qcom/msm8998-sony-xperia-yoshino-lilac.dts

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2021, AngeloGioacchino Del Regno
+ *                     <angelogioacchino.delregno@somainline.org>
+ */
+
+/dts-v1/;
+
+#include "msm8998-sony-xperia-yoshino.dtsi"
+
+/ {
+	model = "Sony Xperia XZ1 Compact";
+	compatible = "sony,xperia-lilac", "qcom,msm8998";
+};
+
+&vreg_l22a_2p85 {
+	regulator-min-microvolt = <2800000>;
+	regulator-max-microvolt = <2800000>;
+};

arch/arm64/boot/dts/qcom/msm8998-sony-xperia-yoshino-maple.dts

@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2021, AngeloGioacchino Del Regno
+ *                     <angelogioacchino.delregno@somainline.org>
+ */
+
+/dts-v1/;
+
+#include "msm8998-sony-xperia-yoshino.dtsi"
+
+/ {
+	model = "Sony Xperia XZ Premium";
+	compatible = "sony,xperia-maple", "qcom,msm8998";
+
+	disp_dvdd_vreg: disp-dvdd-vreg {
+		compatible = "regulator-fixed";
+		regulator-name = "disp_dvdd_en";
+		regulator-min-microvolt = <1350000>;
+		regulator-max-microvolt = <1350000>;
+		startup-delay-us = <0>;
+		enable-active-high;
+		gpio = <&pmi8998_gpio 10 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&disp_dvdd_en>;
+	};
+};
+
+&pmi8998_gpio {
+	disp_dvdd_en: disp-dvdd-en-active {
+		pins = "gpio10";
+		function = "normal";
+		bias-disable;
+		drive-push-pull;
+		output-high;
+		power-source = <0>;
+		qcom,drive-strength = <1>;
+	};
+};
+
+&vreg_l22a_2p85 {
+	regulator-min-microvolt = <2704000>;
+	regulator-max-microvolt = <2704000>;
+};

arch/arm64/boot/dts/qcom/msm8998-sony-xperia-yoshino-poplar.dts

@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2021, AngeloGioacchino Del Regno
+ *                     <angelogioacchino.delregno@somainline.org>
+ */
+
+/dts-v1/;
+
+#include "msm8998-sony-xperia-yoshino.dtsi"
+
+/ {
+	model = "Sony Xperia XZ1";
+	compatible = "sony,xperia-poplar", "qcom,msm8998";
+};
+
+&vreg_l18a_2p85 {
+	regulator-min-microvolt = <2850000>;
+	regulator-max-microvolt = <2850000>;
+};
+
+&vreg_l22a_2p85 {
+	regulator-min-microvolt = <2700000>;
+	regulator-max-microvolt = <2700000>;
+};