ARM: dts: stm32: add dsi support on stm32mp157c

Add dsi support on stm32mp157c
Signed-off-by: yannick fertre <yannick.fertre@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32mp157c.dtsi

@@ -718,6 +718,16 @@ crc1: crc@58009000 {
 			status = "disabled";
 		};
 
+		dsi: dsi@5a000000 {
+			compatible = "st,stm32-dsi";
+			reg = <0x5a000000 0x800>;
+			clocks = <&rcc DSI_K>, <&clk_hse>, <&rcc DSI_PX>;
+			clock-names = "pclk", "ref", "px_clk";
+			resets = <&rcc DSI_R>;
+			reset-names = "apb";
+			status = "disabled";
+		};
+
 		ltdc: display-controller@5a001000 {
 			compatible = "st,stm32-ltdc";
 			reg = <0x5a001000 0x400>;