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| author | Fu, Zhonghui <zhonghui.fu@linux.intel.com> | 2016-01-22 06:32:18 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-02-29 13:02:51 +0300 |
| commit | ccf7bfdc360820b4e089d7576eb074280c5ab4a3 (patch) | |
| tree | bb1b9787f940dac5f2f0949951783c8adebc8be6 /drivers/mmc/core/host.c | |
| parent | f771f6e832ce0b5e0d8b30b33c3f1d62f92655de (diff) | |
| download | linux-ccf7bfdc360820b4e089d7576eb074280c5ab4a3.tar.xz | |
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>
Diffstat (limited to 'drivers/mmc/core/host.c')
| -rw-r--r-- | drivers/mmc/core/host.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 0aecd5c00b86..1d94607611d8 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); |