boards: st: enable all i2c and panel available on the stm32mp135f_dk board

The stm32mp135f_dk board has 3 i2c instances enabled and feature a
480x272 panel controlled via the LTDC.

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>

Author: Alain Volmat

boards/st/stm32mp135f_dk/stm32mp135f_dk.dts

@@ -8,6 +8,7 @@
 
 #include <st/mp13/stm32mp135.dtsi>
 #include <st/mp13/stm32mp135faex-pinctrl.dtsi>
+#include "zephyr/dt-bindings/display/panel.h"
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 
 / {
@@ -19,6 +20,7 @@
 		zephyr,sram = &ddr_data;
 		zephyr,console = &uart4;
 		zephyr,shell-uart = &uart4;
+		zephyr,display = &ltdc;
 	};
 
 	gpio_keys {
@@ -91,3 +93,56 @@
 	current-speed = <115200>;
 	status = "okay";
 };
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_scl_pd12 &i2c1_sda_pe8>;
+	status = "okay";
+};
+
+&i2c4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c4_scl_pe15 &i2c4_sda_pb9>;
+	status = "okay";
+};
+
+&i2c5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c5_scl_pd1 &i2c5_sda_ph6>;
+	status = "okay";
+};
+
+&ltdc {
+	pinctrl-0 = <&ltdc_r2_pg7 &ltdc_r3_pb12
+			&ltdc_r4_pd14 &ltdc_r5_pe7 &ltdc_r6_pe13 &ltdc_r7_pe9
+			&ltdc_g2_ph13 &ltdc_g3_pf3
+			&ltdc_g4_pd5 &ltdc_g5_pg0 &ltdc_g6_pc7 &ltdc_g7_pa15
+			&ltdc_b2_pd10 &ltdc_b3_pf2
+			&ltdc_b4_ph14 &ltdc_b5_pe0 &ltdc_b6_pb6 &ltdc_b7_pf1
+			&ltdc_de_ph9 &ltdc_clk_pd9 &ltdc_hsync_pc6 &ltdc_vsync_pg4>;
+	pinctrl-names = "default";
+	disp-on-gpios = <&gpioi 7 GPIO_ACTIVE_HIGH>;
+	bl-ctrl-gpios = <&gpioe 12 GPIO_ACTIVE_HIGH>;
+
+	status = "okay";
+
+	width = <480>;
+	height = <272>;
+	pixel-format = <PANEL_PIXEL_FORMAT_RGB_565>;
+	display-timings {
+		compatible = "zephyr,panel-timing";
+		de-active = <0>;
+		pixelclk-active = <0>;
+		hsync-active = <0>;
+		vsync-active = <0>;
+		hsync-len = <41>;
+		vsync-len = <10>;
+		hback-porch = <13>;
+		vback-porch = <2>;
+		hfront-porch = <32>;
+		vfront-porch = <2>;
+	};
+	def-back-color-red = <0xFF>;
+	def-back-color-green = <0xFF>;
+	def-back-color-blue = <0xFF>;
+};