From a39a3b9f4ff0aba7c2c475afaa52a3eb52d2b9ad Mon Sep 17 00:00:00 2001
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: Thu, 15 Jun 2017 23:33:47 +0200
Subject: [PATCH] ARM: dts: meson: add the SAR ADC

This adds the SAR ADC to meson.dtsi and configures the clocks on Meson8
and Meson8b to allow boards to use it. Some boards use it to connect a
button to it.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
---
 arch/arm/boot/dts/meson.dtsi   | 8 ++++++++
 arch/arm/boot/dts/meson8.dtsi  | 8 ++++++++
 arch/arm/boot/dts/meson8b.dtsi | 8 ++++++++
 3 files changed, 24 insertions(+)

diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index d287f606e06f..46706d74a145 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -103,6 +103,14 @@
 				status = "disabled";
 			};
 
+			saradc: adc@8680 {
+				compatible = "amlogic,meson-saradc";
+				reg = <0x8680 0x34>;
+				#io-channel-cells = <1>;
+				interrupts = <GIC_SPI 73 IRQ_TYPE_EDGE_RISING>;
+				status = "disabled";
+			};
+
 			uart_C: serial@8700 {
 				compatible = "amlogic,meson-uart";
 				reg = <0x8700 0x18>;
diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index bb3608bddc98..6687b1b4c7c9 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -232,6 +232,14 @@
 	arm,filter-ranges = <0x100000 0xc0000000>;
 };
 
+&saradc {
+	compatible = "amlogic,meson8-saradc", "amlogic,meson-saradc";
+	clocks = <&clkc CLKID_XTAL>,
+		<&clkc CLKID_SAR_ADC>,
+		<&clkc CLKID_SANA>;
+	clock-names = "clkin", "core", "sana";
+};
+
 &spifc {
 	clocks = <&clkc CLKID_CLK81>;
 };
diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi
index d9f116a418b2..1c09090ff4a5 100644
--- a/arch/arm/boot/dts/meson8b.dtsi
+++ b/arch/arm/boot/dts/meson8b.dtsi
@@ -177,6 +177,14 @@
 	arm,filter-ranges = <0x100000 0xc0000000>;
 };
 
+&saradc {
+	compatible = "amlogic,meson8b-saradc", "amlogic,meson-saradc";
+	clocks = <&clkc CLKID_XTAL>,
+		<&clkc CLKID_SAR_ADC>,
+		<&clkc CLKID_SANA>;
+	clock-names = "clkin", "core", "sana";
+};
+
 &uart_AO {
 	clocks = <&clkc CLKID_CLK81>;
 };