From: Fu, Zhonghui Date: Thu, 19 May 2016 02:46:24 +0000 (+0800) Subject: HID: i2c_hid: enable i2c-hid devices to suspend/resume asynchronously X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=982e42d655ad9a579147e0feaf9a050b57d3d71e;p=linux-beck.git 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 Acked-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- 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)