From 67e3eb76be5f7c3a800ee85d5571bd2f332e247f Mon Sep 17 00:00:00 2001 From: Luo Chongjun Date: Thu, 15 Dec 2022 17:25:15 +0800 Subject: [PATCH] ath79: Fix glinet ar300m usb not working glinet forum users reported the problem at https://forum.gl-inet.com/t/gl-ar300m16-openwrt-22-03-0-rc5-usb-port-power-off-by-default/23199 The current code uses the regulator framework to control the USB power supply. Although usb0 described in DTS refers to the regulator by vbus-supply, but there is no code related to regulator implemented in the USB driver of QCA953X, so the USB of the device cannot work. Under the regulator framework, adding the regulator-always-on attribute fixes this problem, but it means that USB power will not be able to be turned off. Since we need to control the USB power supply in user space, I didn't find any other better way under the regulator framework of Linux, so I directly export gpio. Signed-off-by: Luo Chongjun (cherry picked from commit b352124cd2115fec648a00956a848660df9477d3) --- .../ath79/dts/qca9531_glinet_gl-ar300m-lite.dts | 4 ---- .../ath79/dts/qca9531_glinet_gl-ar300m.dtsi | 17 ++++++++--------- 2 files changed, 8 insertions(+), 13 deletions(-) diff --git a/target/linux/ath79/dts/qca9531_glinet_gl-ar300m-lite.dts b/target/linux/ath79/dts/qca9531_glinet_gl-ar300m-lite.dts index a34abb1dd2..c712236114 100644 --- a/target/linux/ath79/dts/qca9531_glinet_gl-ar300m-lite.dts +++ b/target/linux/ath79/dts/qca9531_glinet_gl-ar300m-lite.dts @@ -7,7 +7,6 @@ model = "GL.iNet GL-AR300M-Lite"; }; -/delete-node/ ®_usb_vbus; /delete-node/ &nand_flash; @@ -30,6 +29,3 @@ label = "green:wlan"; }; -&usb0 { - /delete-property/ vbus-supply; -}; diff --git a/target/linux/ath79/dts/qca9531_glinet_gl-ar300m.dtsi b/target/linux/ath79/dts/qca9531_glinet_gl-ar300m.dtsi index d64ffa7115..b6ea1080a4 100644 --- a/target/linux/ath79/dts/qca9531_glinet_gl-ar300m.dtsi +++ b/target/linux/ath79/dts/qca9531_glinet_gl-ar300m.dtsi @@ -37,14 +37,14 @@ }; }; - reg_usb_vbus: reg_usb_vbus { - compatible = "regulator-fixed"; - - regulator-name = "usb_vbus"; - regulator-min-microvolt = <5000000>; - regulator-max-microvolt = <5000000>; - gpio = <&gpio 2 GPIO_ACTIVE_HIGH>; - enable-active-high; + gpio-export { + compatible = "gpio-export"; + + gpio_usb_power { + gpio-export,name = "usb_power"; + gpio-export,output = <1>; + gpios = <&gpio 2 GPIO_ACTIVE_HIGH>; + }; }; leds { @@ -144,7 +144,6 @@ &usb0 { #address-cells = <1>; #size-cells = <0>; - vbus-supply = <®_usb_vbus>; status = "okay"; }; -- 2.25.1