linux-kernel - Re: [PATCH] apm: orphan the driver

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Message-ID: <4D90D255.4060008@zytor.com>
Date:	Mon, 28 Mar 2011 11:24:21 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andi Kleen <andi@...stfloor.org>
CC:	Jiri Kosina <jkosina@...e.cz>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Linus <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
	Len Brown <lenb@...nel.org>,
	linux-pm@...ts.linux-foundation.org,
	Henrique de Moraes Holschuh <hmh@....eng.br>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ondrej Zary <linux@...nbow-software.org>
Subject: Re: [PATCH] apm: orphan the driver

On 03/28/2011 11:21 AM, Andi Kleen wrote:
>> Or we phase out the APM effort by only supporting it for poweroff, for
>> example.
> 
> Phasing out APM idle at least would be reasonable.  resumably even if the old 
> laptops still work they are likely on AC because their batteries have
> long died. So using a bit more power in idle shouldn't be a big
> issue.
> 
> Not sure about suspend, screen saver etc. I suppose those could
> be kept as frozen legacy features. At least until someone else
> wants to redesign those parts too.
> 

Since poweroff applies even to stationary systems, it's probably the
most important bit.  Suspend/resume the second most important.

	-hpa
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