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mediatek: filogic: use WPS button instead of RST on BPi-R3

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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 <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2022-09-09 20:44:46 +01:00
parent 964b822180
commit f7dbdcfa54
2 changed files with 15 additions and 3 deletions
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6
package/boot/uboot-mediatek/patches/430-add-bpi-r3.patch
View file

@ -866,14 +866,14 @@
+ +
+ keys { + keys {
+ compatible = "gpio-keys"; + compatible = "gpio-keys";
+ +/*
+ factory { + factory {
+ label = "reset"; + label = "reset";
+ gpios = <&gpio 9 GPIO_ACTIVE_LOW>; + gpios = <&gpio 9 GPIO_ACTIVE_LOW>;
+ }; + };
+ +*/
+ wps { + wps {
+ label = "wps"; + label = "reset";
+ gpios = <&gpio 10 GPIO_ACTIVE_LOW>; + gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
+ }; + };
+ }; + };

12
target/linux/mediatek/dts/mt7986a-bananapi-bpi-r3.dts
View file

@ -63,6 +63,11 @@
keys { keys {
compatible = "gpio-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 { factory {
label = "reset"; label = "reset";
linux,code = <KEY_RESTART>; linux,code = <KEY_RESTART>;
@ -74,6 +79,13 @@
linux,code = <KEY_WPS_BUTTON>; linux,code = <KEY_WPS_BUTTON>;
gpios = <&pio 10 GPIO_ACTIVE_LOW>; gpios = <&pio 10 GPIO_ACTIVE_LOW>;
}; };
* actual setup:
*/
wps {
label = "wps";
linux,code = <KEY_RESTART>;
gpios = <&pio 10 GPIO_ACTIVE_LOW>;
};
}; };
leds { leds {