On Thu, 19 May 2016, Fu, Zhonghui wrote: > 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...@linux.intel.com> > --- > 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 2e021ba..cc41e1e 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)
Applied to hid.git#for-4.8/i2c-hid. -- Jiri Kosina SUSE Labs
