Commit c70a1529 authored by Andrew Bresticker's avatar Andrew Bresticker Committed by Greg Kroah-Hartman

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: default avatarAndrew Bresticker <abrestic@chromium.org>
Tested-by: default avatarAndrew Bresticker <abrestic@chromium.org>
Tested-by: default avatarRobert Foss <robert.foss@collabora.com>
Signed-off-by: default avatarRobert Foss <robert.foss@collabora.com>
Reviewed-by: default avatarBaolin Wang <baolin.wang@linaro.org>
Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4eebed9a
...@@ -277,6 +277,8 @@ static int xhci_plat_probe(struct platform_device *pdev) ...@@ -277,6 +277,8 @@ static int xhci_plat_probe(struct platform_device *pdev)
if (ret) if (ret)
goto dealloc_usb2_hcd; goto dealloc_usb2_hcd;
device_enable_async_suspend(&pdev->dev);
return 0; return 0;
......
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