MIPS: DTS: CI20: multiple DTS improvements

a) add DT node for SW1 as Enter button

The SW1 button can be used as a simple one-button keyboard
and is connected to PD17.

Note: SW1 has a second meaning to change the boot sequence
when pressed while powering on.

b) give eth0_power a defined voltage.

This is a 3.3V power switch (DVNET3.3V).

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index fc4e642..db0ca25 100644 (file)
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -4,6 +4,7 @@
 #include "jz4780.dtsi"
 #include <dt-bindings/clock/ingenic,tcu.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/regulator/active-semi,8865-regulator.h>
 
@@ -27,6 +28,17 @@
                       0x30000000 0x30000000>;
        };
 
+       gpio-keys {
+               compatible = "gpio-keys";
+
+               sw1 {
+                       label = "ci20:sw1";
+                       linux,code = <KEY_F13>;
+                       gpios = <&gpd 17 GPIO_ACTIVE_HIGH>;
+                       wakeup-source;
+               };
+       };
+
        leds {
                compatible = "gpio-leds";
 
@@ -58,6 +70,8 @@
        eth0_power: fixedregulator@0 {
                compatible = "regulator-fixed";
                regulator-name = "eth0_power";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
                gpio = <&gpb 25 GPIO_ACTIVE_LOW>;
                enable-active-high;
        };