ARM: meson: Sync Amlogic DT from Linux 5.14

Import Amlogic DT changes from Linux commit 7d2a07b76933 ("Linux 5.14"),
dt-bindings clock changes and new meson-g12b-gsking-x.dts,
meson-sm1-bananapi-m5 & odroid-hc4 boards.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/arch/arm/dts/meson-g12b-odroid-n2.dtsi b/arch/arm/dts/meson-g12b-odroid-n2.dtsi
index 6982632..344573e 100644
--- a/arch/arm/dts/meson-g12b-odroid-n2.dtsi
+++ b/arch/arm/dts/meson-g12b-odroid-n2.dtsi
@@ -13,6 +13,8 @@
 	aliases {
 		serial0 = &uart_AO;
 		ethernet0 = &ethmac;
+		rtc0 = &rtc;
+		rtc1 = &vrtc;
 	};
 
 	dioo2133: audio-amplifier-0 {
@@ -40,7 +42,7 @@
 	leds {
 		compatible = "gpio-leds";
 
-		blue {
+		led-blue {
 			label = "n2:blue";
 			gpios = <&gpio_ao GPIOAO_11 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
@@ -211,7 +213,7 @@
 
 	sound {
 		compatible = "amlogic,axg-sound-card";
-		model = "G12B-ODROID-N2";
+		model = "ODROID-N2";
 		audio-widgets = "Line", "Lineout";
 		audio-aux-devs = <&tdmout_b>, <&tdmout_c>, <&tdmin_a>,
 				 <&tdmin_b>, <&tdmin_c>, <&tdmin_lb>,
@@ -408,12 +410,12 @@
 
 &ext_mdio {
 	external_phy: ethernet-phy@0 {
-		/* Realtek RTL8211F (0x001cc916) */	
+		/* Realtek RTL8211F (0x001cc916) */
 		reg = <0>;
 		max-speed = <1000>;
 
 		reset-assert-us = <10000>;
-		reset-deassert-us = <30000>;
+		reset-deassert-us = <80000>;
 		reset-gpios = <&gpio GPIOZ_15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
 
 		interrupt-parent = <&gpio_intc>;
@@ -444,13 +446,58 @@
 };
 
 &gpio {
+	gpio-line-names =
+		/* GPIOZ */
+		"", "", "", "", "", "", "", "",
+		"", "", "", "", "", "", "", "",
+		/* GPIOH */
+		"", "", "", "", "", "", "", "",
+		"",
+		/* BOOT */
+		"", "", "", "", "", "", "", "",
+		"", "", "", "", "", "", "", "",
+		/* GPIOC */
+		"", "", "", "", "", "", "", "",
+		/* GPIOA */
+		"PIN_44", /* GPIOA_0 */
+		"PIN_46", /* GPIOA_1 */
+		"PIN_45", /* GPIOA_2 */
+		"PIN_47", /* GPIOA_3 */
+		"PIN_26", /* GPIOA_4 */
+		"", "", "", "", "", "",
+		"PIN_42", /* GPIOA_11 */
+		"PIN_32", /* GPIOA_12 */
+		"PIN_7",  /* GPIOA_13 */
+		"PIN_27", /* GPIOA_14 */
+		"PIN_28", /* GPIOA_15 */
+		/* GPIOX */
+		"PIN_16", /* GPIOX_0 */
+		"PIN_18", /* GPIOX_1 */
+		"PIN_22", /* GPIOX_2 */
+		"PIN_11", /* GPIOX_3 */
+		"PIN_13", /* GPIOX_4 */
+		"PIN_33", /* GPIOX_5 */
+		"PIN_35", /* GPIOX_6 */
+		"PIN_15", /* GPIOX_7 */
+		"PIN_19", /* GPIOX_8 */
+		"PIN_21", /* GPIOX_9 */
+		"PIN_24", /* GPIOX_10 */
+		"PIN_23", /* GPIOX_11 */
+		"PIN_8",  /* GPIOX_12 */
+		"PIN_10", /* GPIOX_13 */
+		"PIN_29", /* GPIOX_14 */
+		"PIN_31", /* GPIOX_15 */
+		"PIN_12", /* GPIOX_16 */
+		"PIN_3",  /* GPIOX_17 */
+		"PIN_5",  /* GPIOX_18 */
+		"PIN_36"; /* GPIOX_19 */
 	/*
 	 * WARNING: The USB Hub on the Odroid-N2 needs a reset signal
 	 * to be turned high in order to be detected by the USB Controller
 	 * This signal should be handled by a USB specific power sequence
 	 * in order to reset the Hub when USB bus is powered down.
 	 */
-	usb-hub {
+	hog-0 {
 		gpio-hog;
 		gpios = <GPIOH_4 GPIO_ACTIVE_HIGH>;
 		output-high;
@@ -478,6 +525,18 @@
 	linux,rc-map-name = "rc-odroid";
 };
 
+&i2c3 {
+	status = "okay";
+	pinctrl-0 = <&i2c3_sda_a_pins>, <&i2c3_sck_a_pins>;
+	pinctrl-names = "default";
+
+	rtc: rtc@51 {
+		compatible = "nxp,pcf8563";
+		reg = <0x51>;
+		wakeup-source;
+	};
+};
+
 &pwm_ab {
 	pinctrl-0 = <&pwm_a_e_pins>;
 	pinctrl-names = "default";
@@ -494,6 +553,11 @@
 	status = "okay";
 };
 
+&saradc {
+	status = "okay";
+	vref-supply = <&vddao_1v8>;
+};
+
 /* SD card */
 &sd_emmc_b {
 	status = "okay";