diff options
| author | Kai-Heng Feng <[email protected]> | 2020-02-05 19:26:33 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2020-03-12 09:34:42 +0100 |
| commit | b63e48fb50e1ca71db301ca9082befa6f16c55c4 (patch) | |
| tree | c3f1b4a14d955bfd701614a53428f811003c960b | |
| parent | 16263abc12d09871156a1c8650fb651f0e552f5e (diff) | |
USB: Disable LPM on WD19's Realtek Hub
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 <[email protected]>
Signed-off-by: Kai-Heng Feng <[email protected]>
Cc: stable <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
| -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 }, |