Re: [PATCH RESEND v8] usb: xhci: plat: Enable async suspend/resume

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 20.02.2017 17:48, Robert Foss wrote:
From: Andrew Bresticker <abrestic@xxxxxxxxxxxx>

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@xxxxxxxxxxxx>
Tested-by: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
Tested-by: Robert Foss <robert.foss@xxxxxxxxxxxxx>
Signed-off-by: Robert Foss <robert.foss@xxxxxxxxxxxxx>
Reviewed-by: Baolin Wang <baolin.wang@xxxxxxxxxx>
---

Changes since v8:
  - Rebased on upstream/master
  - Added r-b of Baolin Wang


  drivers/usb/host/xhci-plat.c | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index e5834dd9bcde..8ef34fe4d5c0 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -255,6 +255,8 @@ static int xhci_plat_probe(struct platform_device *pdev)
  	if (ret)
  		goto dealloc_usb2_hcd;

+	device_enable_async_suspend(&pdev->dev);
+
  	return 0;


Thanks, added to queue

-Mathias

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux