This adds support for the power button attached to the Embedded Controller
on a Dell Wyse 3020 "Ariel" board.
However, while the EC itself is controlled via I2C, the input capability
for the power button acts as a separate device attached to the SPI, hence
it has a separate device node.
Signed-off-by: Lubomir Rintel <[email protected]>
---
arch/arm/boot/dts/mmp3-dell-ariel.dts | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/mmp3-dell-ariel.dts b/arch/arm/boot/dts/mmp3-dell-ariel.dts
index 565cd0fadf3d3..c4a6bd876d849 100644
--- a/arch/arm/boot/dts/mmp3-dell-ariel.dts
+++ b/arch/arm/boot/dts/mmp3-dell-ariel.dts
@@ -119,8 +119,16 @@ firmware-flash@0 {
};
&ssp2 {
- cs-gpios = <&gpio 56 GPIO_ACTIVE_LOW>;
status = "okay";
+ cs-gpios = <&gpio 56 GPIO_ACTIVE_LOW>;
+
+ power-button@0 {
+ reg = <0>;
+ interrupt-parent = <&gpio>;
+ interrupts = <60 IRQ_TYPE_EDGE_RISING>;
+ compatible = "dell,wyse-ariel-ec-input", "ene,kb3930-input";
+ spi-max-frequency = <33000000>;
+ };
};
&gpu_2d {
--
2.29.2