From: Chris Chiu chris.chiu@canonical.com
commit ca91fd8c7643d93bfc18a6fec1a0d3972a46a18a upstream.
Realtek Hub (0bda:5487) in Dell Dock WD19 sometimes fails to work after the system resumes from suspend with remote wakeup enabled device connected: [ 1947.640907] hub 5-2.3:1.0: hub_ext_port_status failed (err = -71) [ 1947.641208] usb 5-2.3-port5: cannot disable (err = -71) [ 1947.641401] hub 5-2.3:1.0: hub_ext_port_status failed (err = -71) [ 1947.641450] usb 5-2.3-port4: cannot reset (err = -71)
Information of this hub: T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 10 Spd=480 MxCh= 5 D: Ver= 2.10 Cls=09(hub ) Sub=00 Prot=02 MxPS=64 #Cfgs= 1 P: Vendor=0bda ProdID=5487 Rev= 1.47 S: Manufacturer=Dell Inc. S: Product=Dell dock C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=01 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms I:* If#= 0 Alt= 1 #EPs= 1 Cls=09(hub ) Sub=00 Prot=02 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms
The failure results from the ETIMEDOUT by chance when turning on the suspend feature for the specified port of the hub. The port seems to be in an unknown state so the hub_activate during resume fails the hub_port_status, then the hub will fail to work.
The quirky hub needs the reset-resume quirk to function correctly.
Acked-by: Alan Stern stern@rowland.harvard.edu Signed-off-by: Chris Chiu chris.chiu@canonical.com Cc: stable stable@vger.kernel.org Link: https://lore.kernel.org/r/20210420174651.6202-1-chris.chiu@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/core/quirks.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -245,6 +245,7 @@ static const struct usb_device_id usb_qu
/* Realtek hub in Dell WD19 (Type-C) */ { USB_DEVICE(0x0bda, 0x0487), .driver_info = USB_QUIRK_NO_LPM }, + { USB_DEVICE(0x0bda, 0x5487), .driver_info = USB_QUIRK_RESET_RESUME },
/* Generic RTL8153 based ethernet adapters */ { USB_DEVICE(0x0bda, 0x8153), .driver_info = USB_QUIRK_NO_LPM },