lkml.org 
[lkml]   [2015]   [Sep]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH v2] MMC/SDIO: enable SDIO device to suspend/resume asynchronously
Now, PM core supports asynchronous suspend/resume mode for devices
during system suspend/resume, and the power state transition of one
device may be completed in separate kernel thread. PM core ensures
all power state transition timing dependency between devices. This
patch enables SDIO card and function devices to suspend/resume
asynchronously. This will take advantage of multicore and improve
system suspend/resume speed.

Signed-off-by: Zhonghui Fu <zhonghui.fu@linux.intel.com>
---
Changes in v2:
- Amend commit message.

drivers/mmc/core/sdio.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index b91abed..6719b77 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -1106,6 +1106,8 @@ int mmc_attach_sdio(struct mmc_host *host)
pm_runtime_enable(&card->dev);
}

+ device_enable_async_suspend(&card->dev);
+
/*
* The number of functions on the card is encoded inside
* the ocr.
@@ -1126,6 +1128,8 @@ int mmc_attach_sdio(struct mmc_host *host)
*/
if (host->caps & MMC_CAP_POWER_OFF_CARD)
pm_runtime_enable(&card->sdio_func[i]->dev);
+
+ device_enable_async_suspend(&card->sdio_func[i]->dev);
}

/*
-- 1.7.1


\
 
 \ /
  Last update: 2015-09-21 06:41    [W:1.035 / U:0.016 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site