mediatek: mt7622: fix banana pi r64 wps button

Fix the wps button to prevent wrongly detected recovery procedures.
In the official banana pi r64 git the wps button is set to
GPIO_ACTIVE_LOW and not GPIO_ACTIVE_HIGH.

Import patch to fix on boot unwanted recovery entering:

  Press the [f] key and hit [enter] to enter failsafe mode
  Press the [1], [2], [3] or [4] key and hit [enter] to select the debug level
  - failsafe button wps was pressed -
  - failsafe -

Signed-off-by: Nick Hainke <vincent@systemli.org>

diff --git a/target/linux/mediatek/patches-5.15/920-dts-mt7622-bpi-r64-fix-wps-button.patch b/target/linux/mediatek/patches-5.15/920-dts-mt7622-bpi-r64-fix-wps-button.patch
new file mode 100644 (file)
index 0000000..a5bbed1
--- /dev/null
+++ b/target/linux/mediatek/patches-5.15/920-dts-mt7622-bpi-r64-fix-wps-button.patch
@@ -0,0 +1,45 @@
+From dd1d420f40e75c3881a04001e6f2798492ee83c2 Mon Sep 17 00:00:00 2001
+From: Nick Hainke <vincent@systemli.org>
+Date: Thu, 30 Jun 2022 12:32:20 +0200
+Subject: [PATCH] arm64: dts: mt7622: fix BPI-R64 WPS button
+
+The bananapi R64 (BPI-R64) experiences wrong WPS button signals.
+In OpenWrt pushing the WPS button while powering on the device will set
+it to recovery mode. Currently, this also happens without any user
+interaction. In particular, the wrong signals appear while booting the
+device or restarting it, e.g. after doing a system upgrade. If the
+device is in recovery mode the user needs to manually power cycle or
+restart it.
+
+The official BPI-R64 sources set the WPS button to GPIO_ACTIVE_LOW in
+the device tree. This setting seems to suppress the unwanted WPS button
+press signals. So this commit changes the button from GPIO_ACTIVE_HIGH to
+GPIO_ACTIVE_LOW.
+
+The official BPI-R64 sources can be found on
+https://github.com/BPI-SINOVOIP/BPI-R64-openwrt
+
+Fixes: 0b6286dd96c0 ("arm64: dts: mt7622: add bananapi BPI-R64 board")
+
+Suggested-by: INAGAKI Hiroshi <musashino.open@gmail.com>
+Signed-off-by: Nick Hainke <vincent@systemli.org>
+---
+ arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
+index 2b9bf8dd14ec..7538918c7a82 100644
+--- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
++++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
+@@ -49,7 +49,7 @@ factory {
+               wps {
+                       label = "wps";
+                       linux,code = <KEY_WPS_BUTTON>;
+-                      gpios = <&pio 102 GPIO_ACTIVE_HIGH>;
++                      gpios = <&pio 102 GPIO_ACTIVE_LOW>;
+               };
+       };
+ 
+-- 
+2.37.0
+