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>

diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index d287f60..46706d7 100644 (file)
--- 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 bb3608b..6687b1b 100644 (file)
--- 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 d9f116a..1c09090 100644 (file)
--- 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>;
 };