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 d287f606e06f7aeab2e8dceff59969f609bbee50..46706d74a14577995b9885610e35e36eb291a5f1 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 bb3608bddc987964aca2f8b2cf54ea546209cb6e..6687b1b4c7c973e8d8322f8dd5699b67622ff7c6 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 d9f116a418b23e63172f59e04cc958ae342296a0..1c09090ff4a51bb63fee06c07bdfe2158a36e223 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>;
 };