From: Shaohua Li <shaohua.li@intel.com>
Date: Thu, 11 Oct 2007 21:53:58 +0000 (+0200)
Subject: ide: hook ACPI _PSx method to IDE power on/off
X-Git-Tag: v2.6.24-rc1~1456^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5e32132befa5d2cefadf3141fee0bbb40cd11f0e;p=pandora-kernel.git

ide: hook ACPI _PSx method to IDE power on/off

ACPI spec defines the sequence of IDE power on/off:
Powering down:
	Call _GTM.
	Power down drive (calls _PS3 method and turns off power planes).
Powering up:
	Power up drive (calls _PS0 method if present and turns on power planes).
	Call _STM passing info from _GTM (possibly modified), with ID data from
	each drive.
	Initialize the channel.
	May modify the results of _GTF.
	For each drive:
		Call _GTF.
		Execute task file (possibly modified).
This patch adds the missed _PS0/_PS3 methods call.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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