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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>
hifive-unleashed-5.1
Fu, Zhonghui 2016-05-19 10:46:24 +08:00 committed by Jiri Kosina
parent dcc4c2f61c
commit 982e42d655
1 changed files with 1 additions and 0 deletions
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drivers/hid/i2c-hid/i2c-hid.c
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@ -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)