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Re: [PATCH] i2c_hid: enable i2c-hid devices to suspend/resume asynchronously

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  Re: [PATCH] i2c_hid: enable i2c-hid devices to suspend/resume  asynchronously Benjamin Tissoires <benjamin.tissoires@redhat.com> - 2016-06-03 10:00 +0200

#1412878 — Re: [PATCH] i2c_hid: enable i2c-hid devices to suspend/resume asynchronously

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 <zhonghui.fu@linux.intel.com>
> ---

In regard with the discussion:
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.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)
> -- 1.7.1
> 

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