ARM: dts: stm32mp13: alignment with v5.19

Device tree alignment with Linux kernel v5.19-rc1 with:
- ARM: dts: stm32: add UserPA13 button on stm32mp135f-dk
- ARM: dts: stm32: add blue led (Linux heartbeat) on stm32mp135f-dk
- ARM: dts: stm32: add EXTI interrupt-parent to pinctrl node on stm32mp131
- ARM: dts: stm32: enable RTC support on stm32mp135f-dk
- ARM: dts: stm32: add RTC node on stm32mp131
- ARM: dts: stm32: fix pinctrl node name warnings (MPU soc)

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arch/arm/dts/stm32mp131.dtsi

@@ -113,6 +113,12 @@
 			compatible = "fixed-clock";
 			clock-frequency = <99000000>;
 		};
+
+		clk_rtc_k: clk-rtc-k {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <32768>;
+		};
 	};
 
 	intc: interrupt-controller@a0021000 {
@@ -256,6 +262,15 @@
 			status = "disabled";
 		};
 
+		rtc: rtc@5c004000 {
+			compatible = "st,stm32mp1-rtc";
+			reg = <0x5c004000 0x400>;
+			interrupts-extended = <&exti 19 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk_pclk4>, <&clk_rtc_k>;
+			clock-names = "pclk", "rtc_ck";
+			status = "disabled";
+		};
+
 		bsec: efuse@5c005000 {
 			compatible = "st,stm32mp13-bsec";
 			reg = <0x5c005000 0x400>;
@@ -277,11 +292,13 @@
 		 * Break node order to solve dependency probe issue between
 		 * pinctrl and exti.
 		 */
-		pinctrl: pin-controller@50002000 {
+		pinctrl: pinctrl@50002000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 			compatible = "st,stm32mp135-pinctrl";
 			ranges = <0 0x50002000 0x8400>;
+			interrupt-parent = <&exti>;
+			st,syscfg = <&exti 0x60 0xff>;
 			pins-are-numbered;
 
 			gpioa: gpio@50002000 {

arch/arm/dts/stm32mp135f-dk.dts

@@ -6,6 +6,9 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
 #include "stm32mp135.dtsi"
 #include "stm32mp13xf.dtsi"
 #include "stm32mp13-pinctrl.dtsi"
@@ -34,6 +37,28 @@
 		};
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		user-pa13 {
+			label = "User-PA13";
+			linux,code = <BTN_1>;
+			gpios = <&gpioa 13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-blue {
+			function = LED_FUNCTION_HEARTBEAT;
+			color = <LED_COLOR_ID_BLUE>;
+			gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+			default-state = "off";
+		};
+	};
+
 	vdd_sd: vdd-sd {
 		compatible = "regulator-fixed";
 		regulator-name = "vdd_sd";
@@ -48,6 +73,10 @@
 	status = "okay";
 };
 
+&rtc {
+	status = "okay";
+};
+
 &sdmmc1 {
 	pinctrl-names = "default", "opendrain", "sleep";
 	pinctrl-0 = <&sdmmc1_b4_pins_a &sdmmc1_clk_pins_a>;