lantiq/xrx200: fix WLAN button actions for Fritzbox 3370

The WLAN button actions are reversed, i.e. pressing the button emits a
'released' action, and vice versa.
This can easily be checked by adding
logger -t button_action "$BUTTON $ACTION"
as the second line of /etc/rc.button/rfkill, and using logread to read
the events (assuming the preceding patch has been applied).
Defining the GPIO as ACTIVE_LOW corrects this behavior.

Signed-off-by: Dustin Gathmann <dzsoftware@posteo.org>
(cherry picked from commit 0ee30adb46a87583badd85b69e4ccd7942786374)

diff --git a/target/linux/lantiq/files-4.14/arch/mips/boot/dts/FRITZ3370-REV2.dtsi b/target/linux/lantiq/files-4.14/arch/mips/boot/dts/FRITZ3370-REV2.dtsi
index f3ce0adfff8976f8bba9a42f16636eee5bdf6ea4..d9474755de4677ca55ad949938d45bda0513a101 100644 (file)
--- a/target/linux/lantiq/files-4.14/arch/mips/boot/dts/FRITZ3370-REV2.dtsi
+++ b/target/linux/lantiq/files-4.14/arch/mips/boot/dts/FRITZ3370-REV2.dtsi
@@ -45,7 +45,7 @@
 
                wifi {
                        label = "wlan";
-                       gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
+                       gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
                        linux,code = <KEY_RFKILL>;
                };
        };