Commit ccf7bfdc authored Jan 22, 2016 by Fu, Zhonghui Committed by Ulf Hansson Feb 29, 2016

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: Zhonghui Fu <zhonghui.fu@linux.intel.com>
Acked-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

parent f771f6e8

drivers/mmc/core/host.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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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