linux-kernel - Re: [RFC][PATCH] PM / Runtime: Add sysfs switch for disabling device run-time PM

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Message-ID: <20100120025147.GA20979@kroah.com>
Date:	Tue, 19 Jan 2010 18:51:47 -0800
From:	Greg KH <greg@...ah.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	pm list <linux-pm@...ts.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Alan Stern <stern@...land.harvard.edu>
Subject: Re: [RFC][PATCH] PM / Runtime: Add sysfs switch for disabling
	device run-time PM

On Mon, Jan 18, 2010 at 01:29:55AM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rjw@...k.pl>
> Subject: PM / Runtime: Add sysfs switch for disabling device run-time PM
> 
> Add new device sysfs attribute, power/runtime, allowing the user
> space to block the run-time power management of the device.  If this
> attribute is set to "disabled", the driver of the device won't be
> able to enable run-time power management for it (without breaking the
> rules).
> 
> Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
> ---
>  drivers/base/power/power.h   |    4 +
>  drivers/base/power/runtime.c |  107 +++++++++++++++++++++++++++++++++----------
>  drivers/base/power/sysfs.c   |   46 ++++++++++++++++++
>  include/linux/pm.h           |    1 
>  include/linux/pm_runtime.h   |   11 +---
>  5 files changed, 139 insertions(+), 30 deletions(-)

You forgot to also add an entry into Documentation/ABI/ for when you
add/change a sysfs file :)

thanks,

greg k-h
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