ARM: dts: exynos: Add Samsung Galaxy Tab 3 8.0 boards

Introduce support for the Galaxy Tab 3 8.0 series of boards:

 - Samsung Galaxy Tab 3 8.0 WiFi (SM-T310/lt01wifi)
 - Samsung Galaxy Tab 3 8.0 3G (SM-T311/lt013g)
 - Samsung Galaxy Tab 3 8.0 LTE (SM-T315/lt01lte)

What works:

 - Display and backlight
 - Touchscreen
 - GPIO buttons, hall sensor
 - WiFi and Bluetooth
 - USB, fuel gauge, charging
 - Accelerometer and magnetometer
 - Audio: speaker, microphone, headset
 - WiFi model only: light sensor

Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Link: https://lore.kernel.org/r/20230714101229.30641-1-aweber.kernel@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

arch/arm/boot/dts/samsung/Makefile

@@ -9,6 +9,9 @@ dtb-$(CONFIG_ARCH_EXYNOS4) += \
 	exynos4210-smdkv310.dtb \
 	exynos4210-trats.dtb \
 	exynos4210-universal_c210.dtb \
+	exynos4212-tab3-3g8.dts \
+	exynos4212-tab3-lte8.dts \
+	exynos4212-tab3-wifi8.dts \
 	exynos4412-i9300.dtb \
 	exynos4412-i9305.dtb \
 	exynos4412-itop-elite.dtb \

arch/arm/boot/dts/samsung/exynos4212-tab3-3g8.dts

@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Samsung's Exynos4212 based Galaxy Tab 3 8.0 3G board device tree
+ * source
+ *
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ */
+
+/dts-v1/;
+#include "exynos4212-tab3.dtsi"
+
+/ {
+	model = "Samsung Galaxy Tab 3 8.0 3G (SM-T311) based on Exynos4212";
+	compatible = "samsung,t311", "samsung,tab3", "samsung,exynos4212", "samsung,exynos4";
+	chassis-type = "tablet";
+};
+
+/* Pin control sleep state overrides */
+&sleep0 {
+	PIN_SLP(gpb-5, INPUT, UP);
+};
+
+&sleep1 {
+	PIN_SLP(gpl0-0, OUT0, NONE);
+	PIN_SLP(gpl1-0, OUT0, NONE);
+	PIN_SLP(gpl2-4, OUT0, NONE);
+	PIN_SLP(gpm3-3, OUT1, NONE);
+};

arch/arm/boot/dts/samsung/exynos4212-tab3-lte8.dts

@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Samsung's Exynos4212 based Galaxy Tab 3 8.0 LTE board device tree
+ * source
+ *
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ */
+
+/dts-v1/;
+#include "exynos4212-tab3.dtsi"
+
+/ {
+	model = "Samsung Galaxy Tab 3 8.0 LTE (SM-T315) based on Exynos4212";
+	compatible = "samsung,t315", "samsung,tab3", "samsung,exynos4212", "samsung,exynos4";
+	chassis-type = "tablet";
+};
+
+/* Pin control sleep state overrides */
+&sleep0 {
+	PIN_SLP(gpa0-4, INPUT, UP);
+	PIN_SLP(gpa0-5, INPUT, UP);
+
+	PIN_SLP(gpb-5, INPUT, UP);
+
+	PIN_SLP(gpc0-0, PREV, NONE);
+	PIN_SLP(gpc1-3, INPUT, NONE);
+
+	PIN_SLP(gpf1-6, INPUT, NONE);
+	PIN_SLP(gpf2-2, PREV, NONE);
+};
+
+&sleep1 {
+	PIN_SLP(gpl0-0, PREV, NONE);
+
+	PIN_SLP(gpl1-0, PREV, NONE);
+
+	PIN_SLP(gpl2-1, INPUT, DOWN);
+	PIN_SLP(gpl2-2, INPUT, DOWN);
+	PIN_SLP(gpl2-4, OUT0, NONE);
+	PIN_SLP(gpl2-5, PREV, NONE);
+
+	PIN_SLP(gpm3-3, OUT1, NONE);
+};

arch/arm/boot/dts/samsung/exynos4212-tab3-wifi8.dts

@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Samsung's Exynos4212 based Galaxy Tab 3 8.0 WiFi board device tree
+ * source
+ *
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ */
+
+/dts-v1/;
+#include "exynos4212-tab3.dtsi"
+
+/ {
+	model = "Samsung Galaxy Tab 3 8.0 WiFi (SM-T310) based on Exynos4212";
+	compatible = "samsung,t310", "samsung,tab3", "samsung,exynos4212", "samsung,exynos4";
+	chassis-type = "tablet";
+};
+
+&i2c_lightsensor {
+	status = "okay";
+
+	lightsensor@10 {
+		compatible = "capella,cm3323";
+		reg = <0x10>;
+	};
+};