| Message ID | 20160821021125.1521-10-wens@csie.org (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts index aeb4037c8768..536a7d1d678b 100644 --- a/arch/arm/boot/dts/sun9i-a80-optimus.dts +++ b/arch/arm/boot/dts/sun9i-a80-optimus.dts @@ -112,7 +112,8 @@ }; &ehci1 { - status = "okay"; + /* Enable if HSIC peripheral is connected */ + status = "disabled"; }; &ehci2 { @@ -484,7 +485,8 @@ &usbphy2 { phy-supply = <®_bldo4>; - status = "okay"; + /* Enable if HSIC peripheral is connected */ + status = "disabled"; }; &usbphy3 {
EHCI1 provides an HSIC interface. This interface is exposed on the board through two pins among the GPIO header. With the PHY now powered up and responding, enabling the interface when nothing is connected results in a lot of error messages: usb 2-1: device descriptor read/64, error -71 usb 2-1: device descriptor read/64, error -71 usb 2-1: new high-speed USB device number 3 using ehci-platform usb 2-1: device descriptor read/64, error -71 usb 2-1: device descriptor read/64, error -71 usb 2-1: new high-speed USB device number 4 using ehci-platform usb 2-1: device not accepting address 4, error -71 usb 2-1: new high-speed USB device number 5 using ehci-platform usb 2-1: device not accepting address 5, error -71 usb usb2-port1: unable to enumerate USB device Disable it by default, but leave the entries in the board DTS. Signed-off-by: Chen-Yu Tsai <wens@csie.org> --- arch/arm/boot/dts/sun9i-a80-optimus.dts | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)