linux-kernel - [PATCH 5/6] arm64: dts: amlogic: meson-s4: add internal SARADC controller

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Message-Id: <20260123022258.136448-6-nick@khadas.com>
Date: Fri, 23 Jan 2026 10:22:57 +0800
From: Nick Xie <nick@...das.com>
To: neil.armstrong@...aro.org,
	khilman@...libre.com,
	jbrunet@...libre.com,
	martin.blumenstingl@...glemail.com,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-amlogic@...ts.infradead.org
Cc: krzk+dt@...nel.org,
	robh@...nel.org,
	conor+dt@...nel.org,
	xieqinick@...il.com,
	Nick Xie <nick@...das.com>
Subject: [PATCH 5/6] arm64: dts: amlogic: meson-s4: add internal SARADC controller

Add the SARADC (Successive Approximation Register ADC) controller
node to the Meson S4 SoC dtsi.

Signed-off-by: Nick Xie <nick@...das.com>
---
 arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
index b1d66054a6e87..cd768f9f4db80 100644
--- a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
@@ -77,6 +77,20 @@ pwrc: power-controller {
 		};
 	};
 
+	saradc: adc@...26000 {
+		compatible = "amlogic,meson-g12a-saradc",
+			     "amlogic,meson-saradc";
+		reg = <0x0 0xfe026000 0x0 0x48>;
+		#io-channel-cells = <1>;
+		interrupts = <GIC_SPI 181 IRQ_TYPE_EDGE_RISING>;
+		clocks = <&xtal>,
+			 <&clkc_periphs CLKID_SAR_ADC>,
+			 <&clkc_periphs CLKID_SARADC>,
+			 <&clkc_periphs CLKID_SARADC_SEL>;
+		clock-names = "clkin", "core", "adc_clk", "adc_sel";
+		status = "disabled";
+	};
+
 	soc {
 		compatible = "simple-bus";
 		#address-cells = <2>;
-- 
2.34.1