From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Tissoires Subject: Re: [PATCH] i2c_hid: enable i2c-hid devices to suspend/resume asynchronously Date: Fri, 3 Jun 2016 09:56:03 +0200 Message-ID: <20160603075603.GE23234@mail.corp.redhat.com> References: <573D2900.6090903@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Return-path: Content-Disposition: inline In-Reply-To: <573D2900.6090903@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org To: "Fu, Zhonghui" Cc: Jiri Kosina , dtor@chromium.org, bleung@chromium.org, Mika Westerberg , aduggan@synaptics.com, k.kozlowski@samsung.com, dianders@chromium.org, gabriele.mzt@gmail.com, linux-input@vger.kernel.org, "linux-kernel@vger.kernel.org" List-Id: linux-input@vger.kernel.org On May 19 2016 or thereabouts, 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 > --- In regard with the discussion: Acked-by: Benjamin Tissoires > 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) > -- 1.7.1 >