From f7dbdcfa54adf474880be2e90e772f93fadae3b7 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Fri, 9 Sep 2022 20:44:46 +0100 Subject: [PATCH] mediatek: filogic: use WPS button instead of RST on BPi-R3 The GPIO used for the RST button is also used for PCIe-CLKREQ signal. Hence it cannot be used as button signal if PCIe is also used. Wire up WPS button to serve as KEY_RESTART in Linux and "reset" button in U-Boot. Signed-off-by: Daniel Golle --- .../boot/uboot-mediatek/patches/430-add-bpi-r3.patch | 6 +++--- .../linux/mediatek/dts/mt7986a-bananapi-bpi-r3.dts | 12 ++++++++++++ 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/package/boot/uboot-mediatek/patches/430-add-bpi-r3.patch b/package/boot/uboot-mediatek/patches/430-add-bpi-r3.patch index d48de66064..834fc730b0 100644 --- a/package/boot/uboot-mediatek/patches/430-add-bpi-r3.patch +++ b/package/boot/uboot-mediatek/patches/430-add-bpi-r3.patch @@ -866,14 +866,14 @@ + + keys { + compatible = "gpio-keys"; -+ ++/* + factory { + label = "reset"; + gpios = <&gpio 9 GPIO_ACTIVE_LOW>; + }; -+ ++*/ + wps { -+ label = "wps"; ++ label = "reset"; + gpios = <&gpio 10 GPIO_ACTIVE_LOW>; + }; + }; diff --git a/target/linux/mediatek/dts/mt7986a-bananapi-bpi-r3.dts b/target/linux/mediatek/dts/mt7986a-bananapi-bpi-r3.dts index 2d9b0ac3b1..218fef5cec 100644 --- a/target/linux/mediatek/dts/mt7986a-bananapi-bpi-r3.dts +++ b/target/linux/mediatek/dts/mt7986a-bananapi-bpi-r3.dts @@ -63,6 +63,11 @@ keys { compatible = "gpio-keys"; +/* + * RST button is also PCIe-CLKREQ signal, use WPS button as reset + * instead as RST button doesn't make sense and cannot be used. + * + * intended buttons: factory { label = "reset"; linux,code = ; @@ -74,6 +79,13 @@ linux,code = ; gpios = <&pio 10 GPIO_ACTIVE_LOW>; }; + * actual setup: + */ + wps { + label = "wps"; + linux,code = ; + gpios = <&pio 10 GPIO_ACTIVE_LOW>; + }; }; leds { -- 2.30.2