diff options
| author | Kai-Heng Feng <kai.heng.feng@canonical.com> | 2020-02-05 19:26:33 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-24 14:07:43 +0100 |
| commit | a025b26bf44a911987475f60bd97680dc32afecd (patch) | |
| tree | 7e6f5abd5518340893789437b10519e926e03a7e | |
| parent | 017df7d7256108e4d0dd0df2ef063f90233331c6 (diff) | |
USB: Disable LPM on WD19's Realtek Hub
commit b63e48fb50e1ca71db301ca9082befa6f16c55c4 upstream.
Realtek Hub (0bda:0x0487) used in Dell Dock WD19 sometimes drops off the
bus when bringing underlying ports from U3 to U0.
Disabling LPM on the hub during setting link state is not enough, so
let's disable LPM completely for this hub.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200205112633.25995-3-kai.heng.feng@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/core/quirks.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 2dac3e7cdd97..df6e6156e1d4 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -378,6 +378,9 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x0b05, 0x17e0), .driver_info = USB_QUIRK_IGNORE_REMOTE_WAKEUP }, + /* Realtek hub in Dell WD19 (Type-C) */ + { USB_DEVICE(0x0bda, 0x0487), .driver_info = USB_QUIRK_NO_LPM }, + /* Action Semiconductor flash disk */ { USB_DEVICE(0x10d6, 0x2200), .driver_info = USB_QUIRK_STRING_FETCH_255 }, |