diff options
| author | Andrew Bresticker <abrestic@chromium.org> | 2017-04-07 17:56:49 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-04-08 12:04:42 +0200 |
| commit | c70a1529b29cb1362ade5dd113313fb945e32c3e (patch) | |
| tree | b36741e8b173c6d789da668e8524b93c89150e36 | |
| parent | 4eebed9a6447581fd2bb58f3cf5868d28b653670 (diff) | |
usb: xhci: plat: Enable async suspend/resume
USB host controllers can take a significant amount of time to suspend
and resume, adding several hundred miliseconds to the kernel resume
time. Since the XHCI controller has no outside dependencies (other than
clocks, which are suspended late/resumed early), allow it to suspend and
resume asynchronously.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Tested-by: Andrew Bresticker <abrestic@chromium.org>
Tested-by: Robert Foss <robert.foss@collabora.com>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/host/xhci-plat.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index f31b9dcdaf5b..62e71b8a8b55 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -277,6 +277,8 @@ static int xhci_plat_probe(struct platform_device *pdev) if (ret) goto dealloc_usb2_hcd; + device_enable_async_suspend(&pdev->dev); + return 0; |