Commit ccf7bfdc authored by Fu, Zhonghui's avatar Fu, Zhonghui Committed by Ulf Hansson

mmc: core: enable mmc host device to suspend/resume asynchronously

This patch enables mmc hosts to suspend/resume asynchronously.
This will improve system suspend/resume speed. After applying
this patch and enabling all mmc hosts' child devices to
suspend/resume asynchronously on ASUS T100TA, the system
suspend-to-idle time is reduced from 1645ms to 1107ms, and the
system resume time is reduced from 940ms to 914ms.
Signed-off-by: default avatarZhonghui Fu <zhonghui.fu@linux.intel.com>
Acked-by: default avatarVenu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent f771f6e8
......@@ -339,6 +339,7 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
host->class_dev.parent = dev;
host->class_dev.class = &mmc_host_class;
device_initialize(&host->class_dev);
device_enable_async_suspend(&host->class_dev);
if (mmc_gpio_alloc(host)) {
put_device(&host->class_dev);
......
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