riscv: dts: sophgo: Add SARADC description for Sophgo CV1800B

Add SARADC node for the Successive Approximation Analog to
Digital Converter used in Sophgo CV1800B SoC.
This patch only adds the active domain controller.

Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
Reviewed-by: Inochi Amaoto <inochiama@gmail.com>
Link: https://lore.kernel.org/r/20240829-sg2002-adc-v5-3-aacb381e869b@bootlin.com
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>

diff --git a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
index b724fb6d9689ef65cfe9470a1f614df30e4ca147..bef89979df78cef028d016c807a5013d91dd8d53 100644 (file)
--- a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
@@ -133,6 +133,28 @@
                        };
                };
 
+               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>;