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| author |   Fu, Zhonghui <zhonghui.fu@linux.intel.com> | 2016-05-19 10:46:24 +0800 |
|---|---|---|
| committer |   Jiri Kosina <jkosina@suse.cz> | 2016-06-06 10:40:59 +0200 |
| commit | 982e42d655ad9a579147e0feaf9a050b57d3d71e (patch) | |
| tree | 084e6cbf121be7ffd1418f2613a61b0492ca16ce /drivers/hid/i2c-hid/i2c-hid.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid (diff) | |
| download | linux-dev-982e42d655ad9a579147e0feaf9a050b57d3d71e.tar.xz linux-dev-982e42d655ad9a579147e0feaf9a050b57d3d71e.zip | |
HID: i2c_hid: enable i2c-hid devices to suspend/resume asynchronously
i2c-hid devices' suspend/resume are usually time-consuming process.
For example, the touch controller(i2c-ATML1000:00) on ASUS T100 tablet
takes about 160ms for suspending and 120ms for resuming. This patch
enables i2c-hid devices to suspend/resume asynchronously. This will
take advantage of multicore and speed up system suspend/resume process.
Signed-off-by: Zhonghui Fu <zhonghui.fu@linux.intel.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/i2c-hid/i2c-hid.c')
| -rw-r--r-- | drivers/hid/i2c-hid/i2c-hid.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index 2e021ba8ff05..cc41e1ef8255 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -1020,6 +1020,7 @@ static int i2c_hid_probe(struct i2c_client *client, pm_runtime_get_noresume(&client->dev); pm_runtime_set_active(&client->dev); pm_runtime_enable(&client->dev); + device_enable_async_suspend(&client->dev); ret = i2c_hid_fetch_hid_descriptor(ihid); if (ret < 0) |