linux-kernel - [PATCH] PM: Allow serio input devices to suspend/resume asynchronously (was: Re: [PATCH 0/5] Async suspend/resume tree)

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Message-Id: <200912152256.33605.rjw@sisk.pl>
Date:	Tue, 15 Dec 2009 22:56:33 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	pm list <linux-pm@...ts.linux-foundation.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: [PATCH] PM: Allow serio input devices to suspend/resume asynchronously (was: Re: [PATCH 0/5] Async suspend/resume tree)

Hi,

I've just added the following patch to the async branch at:
http://git.kernel.org/?p=linux/kernel/git/rafael/suspend-2.6.git;a=shortlog;h=refs/heads/async

It has been discussed with Dmitry who says he's fine with it.

Rafael

---
From: Rafael J. Wysocki <rjw@...k.pl>
Subject: PM: Allow serio input devices to suspend/resume asynchronously

Set async_suspend for all serio input devices, so that they can be
suspended and resumed asynchronously with other devices they don't
depend on in a known way (i.e. devices which are not their parents
or children).

Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
 drivers/input/serio/serio.c |    1 +
 1 file changed, 1 insertion(+)

Index: linux-2.6/drivers/input/serio/serio.c
===================================================================
--- linux-2.6.orig/drivers/input/serio/serio.c
+++ linux-2.6/drivers/input/serio/serio.c
@@ -576,6 +576,7 @@ static void serio_add_port(struct serio 
 			printk(KERN_ERR
 				"serio: sysfs_create_group() failed for %s (%s), error: %d\n",
 				serio->phys, serio->name, error);
+		device_enable_async_suspend(&serio->dev, true);
 	}
 }
 
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