[PATCH v4 3/3] riscv: dts: sophgo: Add SARADC description for Sophgo CV18XX

[Thomas Bonnefille <thomas.bonnefille@bootlin.com>]

Adds SARADC nodes for the common Successive Approximation Analog to
Digital Converter used in Sophgo CV18xx series SoC.
This patch adds two nodes for the two controllers the board, one in
the Active domain and the other in the No-Die domain.

Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
---
 arch/riscv/boot/dts/sophgo/cv18xx.dtsi | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
index 891932ae470f..71a2618852fa 100644
--- a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
@@ -133,6 +133,26 @@ portd: gpio-controller@0 {
 			};
 		};
 
+		saradc: adc@30f0000 {
+			compatible = "sophgo,cv1800b-saradc";
+			reg = <0x030f0000 0x1000>;
+			clocks = <&clk CLK_SARADC>;
+			interrupts = <100 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+
+			channel@0 {
+				reg = <0>;
+			};
+			channel@1 {
+				reg = <1>;
+			};
+			channel@2 {
+				reg = <2>;
+			};
+		};
+
 		i2c0: i2c@4000000 {
 			compatible = "snps,designware-i2c";
 			reg = <0x04000000 0x10000>;

-- 
2.46.0