Hi Ulf, What do you think about this patch? Thanks, Zhonghui On 12/28/2015 11:41 PM, Fu, Zhonghui wrote: > Now, PM core supports asynchronous suspend/resume mode for devices > during system suspend/resume, and the power state transition of one > device may be completed in separate kernel thread. PM core ensures > all power state transition dependency between devices. This patch > enables sdhci-acpi devices to suspend/resume asynchronously. This > will take advantage of multicore and improve system suspend/resume > speed. After enabling the sdhci-acpi devices and all their child > devices to suspend/resume asynchronously on ASUS T100TA, the system > suspend-to-idle time is reduced from 1645ms to 1089ms, and the > system resume time is reduced from 940ms to 908ms. > > Signed-off-by: Zhonghui Fu <zhonghui.fu@xxxxxxxxxxxxxxx> > --- > drivers/mmc/host/sdhci-acpi.c | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) > > diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c > index f6047fc..3d27f2d 100644 > --- a/drivers/mmc/host/sdhci-acpi.c > +++ b/drivers/mmc/host/sdhci-acpi.c > @@ -388,6 +388,8 @@ static int sdhci_acpi_probe(struct platform_device *pdev) > pm_runtime_enable(dev); > } > > + device_enable_async_suspend(dev); > + > return 0; > > err_free: > -- 1.7.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
