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ath79: restore gpio-export on TL-WDR3600/4300

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This partially reverts commit 32144ba275.

This commit replaced gpio-exports in favor of gpio-hogs for enabling USB
power at boot, but this rids the user of control of the USB port power
present on this device for a long time. It was agreed on a mailing list
[1] that this is not the way to go, and this patch breaks a very common
use-case of WWAN modem reset by power cycle, used on a lot USB equipped
routers, hence revert this change until a better solution can be found.

[1] http://lists.infradead.org/pipermail/openwrt-devel/2019-November/020151.html

Tested-by: Sungbo Eo <mans0n@gorani.run>
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
[adjusted commit title]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This commit is contained in:
Lech Perczak 2019-12-08 15:23:54 +01:00 committed by Adrian Schmutzler
parent 60de1fdbb4
commit b1e8a390ea
1 changed files with 28 additions and 30 deletions
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58
target/linux/ath79/dts/ar9344_tplink_tl-wdr4300.dtsi
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@ -6,6 +6,34 @@
aliases {
label-mac-device = &ath9k;
};
gpio-export {
compatible = "gpio-export";
gpio_usb1_power {
gpio-export,name = "tp-link:power:usb1";
gpio-export,output = <1>;
gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
};
gpio_usb2_power {
gpio-export,name = "tp-link:power:usb2";
gpio-export,output = <1>;
gpios = <&gpio 21 GPIO_ACTIVE_HIGH>;
};
gpio_ext_lna0 {
gpio-export,name = "tp-link:ext:lna0";
gpio-export,output = <1>;
gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;
};
gpio_ext_lna1 {
gpio-export,name = "tp-link:ext:lna1";
gpio-export,output = <1>;
gpios = <&gpio 19 GPIO_ACTIVE_HIGH>;
};
};
};
&leds {
@ -24,36 +52,6 @@
};
};
&gpio {
lna0 {
gpio-hog;
gpios = <18 GPIO_ACTIVE_HIGH>;
output-high;
line-name = "tp-link:ext:lna0";
};
lna1 {
gpio-hog;
gpios = <19 GPIO_ACTIVE_HIGH>;
output-high;
line-name = "tp-link:ext:lna1";
};
usb1_power {
gpio-hog;
gpios = <22 GPIO_ACTIVE_HIGH>;
output-high;
line-name = "tp-link:power:usb1";
};
usb2_power {
gpio-hog;
gpios = <21 GPIO_ACTIVE_HIGH>;
output-high;
line-name = "tp-link:power:usb2";
};
};
&usb {
#address-cells = <1>;
#size-cells = <0>;