linux-kernel - Re: [PATCH] ata: ahci: power off unused ports

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Message-ID: <87f94c370806021007i5df45716u38f5b7ce525c03b0@mail.gmail.com>
Date:	Mon, 2 Jun 2008 13:07:01 -0400
From:	"Greg Freemyer" <greg.freemyer@...il.com>
To:	"Jeff Garzik" <jeff@...zik.org>
Cc:	"Mark Lord" <liml@....ca>, "Alan Cox" <alan@...rguk.ukuu.org.uk>,
	"Pavel Machek" <pavel@....cz>,
	"Kristen Carlson Accardi" <kristen.c.accardi@...el.com>,
	"Theodore Tso" <tytso@....edu>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ata: ahci: power off unused ports

On Mon, Jun 2, 2008 at 12:07 PM, Jeff Garzik <jeff@...zik.org> wrote:
> Mark Lord wrote:
>>
>> For the power-off of unused ports, the current patch still sounds
>> extremely vendor-specific (Intel).
>>
>> Does it actually work (demonstrate, please) on any other hardware ?
>
> Ding...  correct.  We need something per-port that's not Intel specific.
>
>        Jeff

But, isn't Alan correct that the new logic is useful to some and with
a simple boot option is can be used to enable / disable it.

So if it is defaulted it to disabled, and the end user is allowed to
have a boot option to enable it, you get a reasonable first step for
now.

Greg
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