From ccf7bfdc360820b4e089d7576eb074280c5ab4a3 Mon Sep 17 00:00:00 2001 From: "Fu, Zhonghui" Date: Fri, 22 Jan 2016 11:32:18 +0800 Subject: [PATCH] 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 Acked-by: Venu Byravarasu Signed-off-by: Ulf Hansson --- drivers/mmc/core/host.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 0aecd5c..1d94607 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -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); -- 2.7.4