From 4e6a2ef9418cc48ecc5664c6549f52ad22330bc1 Mon Sep 17 00:00:00 2001 From: "Fu, Zhonghui" Date: Fri, 22 Jan 2016 12:35:26 +0800 Subject: [PATCH] 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 Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-acpi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index a5cda926d38e..195ff0853dc8 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -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: