Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1314734

[PATCH 1/2 v2] mmc: enable mmc host device to suspend/resume asynchronously

Show all headers | View raw

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>
---
Changes in v2:
- Update commit message

 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 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);
-- 1.7.1

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH 1/2 v2] mmc: enable mmc host device to suspend/resume  asynchronously "Fu, Zhonghui" <zhonghui.fu@linux.intel.com> - 2016-01-22 04:40 +0100
  Re: [PATCH 1/2 v2] mmc: enable mmc host device to suspend/resume asynchronously Ulf Hansson <ulf.hansson@linaro.org> - 2016-01-22 16:00 +0100
    Re: [PATCH 1/2 v2] mmc: enable mmc host device to suspend/resume  asynchronously "Fu, Zhonghui" <zhonghui.fu@linux.intel.com> - 2016-01-26 03:20 +0100

csiph-web