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mmc: sdhci-acpi: enable sdhci-acpi device to suspend/resume asynchronously 

This patch enables sdhci-acpi devices to suspend/resume asynchronously.
This will 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@linux.intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Fu, Zhonghui 2016-01-22 12:35:26 +08:00 committed by Ulf Hansson
parent ccf7bfdc36
commit 4e6a2ef941
1 changed files with 2 additions and 0 deletions
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2
drivers/mmc/host/sdhci-acpi.c
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@ -418,6 +418,8 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
}
device_enable_async_suspend(dev);
return 0;
err_free: