linux-kernel - Re: [PATCH v2] hid: enable hid device to suspend/resume asynchronously

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Message-ID: <alpine.LNX.2.00.1512030953300.32500@cbobk.fhfr.pm>
Date:	Thu, 3 Dec 2015 09:53:46 +0100 (CET)
From:	Jiri Kosina <jikos@...nel.org>
To:	"Fu, Zhonghui" <zhonghui.fu@...ux.intel.com>
cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] hid: enable hid device to suspend/resume
 asynchronously

On Thu, 24 Sep 2015, Fu, Zhonghui wrote:

> Now, PM core supports asynchronous suspend/resume mode for devices
> during system suspend/resume, and the power state transition of one
> device may be completed in separate kernel thread. PM core ensures
> all power state transition timing dependency between devices. This
> patch enables hid devices to suspend/resume asynchronously. This
> will take advantage of multicore and improve system suspend/resume
> speed.
> 
> Signed-off-by: Zhonghui Fu <zhonghui.fu@...ux.intel.com>
> ---
> Changes in v2:
> - Amend commit message.
> 
>  drivers/hid/hid-core.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
> index 70a11ac..357f3a3 100644
> --- a/drivers/hid/hid-core.c
> +++ b/drivers/hid/hid-core.c
> @@ -2652,6 +2652,7 @@ struct hid_device *hid_allocate_device(void)
>  	device_initialize(&hdev->dev);
>  	hdev->dev.release = hid_device_release;
>  	hdev->dev.bus = &hid_bus_type;
> +	device_enable_async_suspend(&hdev->dev);

Applied to for-4.5/async-suspend branch.

-- 
Jiri Kosina
SUSE Labs

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