ARM: dts: at91: sama7g5: add node for the ADC

Add node for the ADC controller in sama7g5 SoC.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20210901123013.329792-10-eugen.hristev@microchip.com

arch/arm/boot/dts/sama7g5.dtsi

@@ -137,6 +137,22 @@ ps_wdt: watchdog@e001d180 {
 			clocks = <&clk32k 0>;
 		};
 
+		adc: adc@e1000000 {
+			compatible = "microchip,sama7g5-adc";
+			reg = <0xe1000000 0x200>;
+			interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&pmc PMC_TYPE_GCK 26>;
+			assigned-clocks = <&pmc PMC_TYPE_GCK 26>;
+			assigned-clock-rates = <100000000>;
+			clock-names = "adc_clk";
+			dmas = <&dma0 AT91_XDMAC_DT_PERID(0)>;
+			dma-names = "rx";
+			atmel,min-sample-rate-hz = <200000>;
+			atmel,max-sample-rate-hz = <20000000>;
+			atmel,startup-time-ms = <4>;
+			status = "disabled";
+		};
+
 		sdmmc0: mmc@e1204000 {
 			compatible = "microchip,sama7g5-sdhci", "microchip,sam9x60-sdhci";
 			reg = <0xe1204000 0x4000>;