提交 a4fa2270 编写于 作者: K Kai-Heng Feng 提交者: Yang Yingliang

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: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NKai-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.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
上级 32376ecd
...@@ -378,6 +378,9 @@ static const struct usb_device_id usb_quirk_list[] = { ...@@ -378,6 +378,9 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x0b05, 0x17e0), .driver_info = { USB_DEVICE(0x0b05, 0x17e0), .driver_info =
USB_QUIRK_IGNORE_REMOTE_WAKEUP }, 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 */ /* Action Semiconductor flash disk */
{ USB_DEVICE(0x10d6, 0x2200), .driver_info = { USB_DEVICE(0x10d6, 0x2200), .driver_info =
USB_QUIRK_STRING_FETCH_255 }, USB_QUIRK_STRING_FETCH_255 },
......
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