From: Tejun Heo <htejun@gmail.com>
Date: Mon, 7 Apr 2008 13:47:22 +0000 (+0900)
Subject: libata: implement PMP helpers
X-Git-Tag: v2.6.26-rc1~1150^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=071f44b1d2c051641b62a3571223314737ccbe59;p=pandora-kernel.git

libata: implement PMP helpers

Implement helpers to test whether PMP is supported, attached and
determine pmp number to use when issuing SRST to a link.  While at it,
move ata_is_host_link() so that it's together with the two new PMP
helpers.

This change simplifies LLDs and helps making PMP support optional.

Signed-off-by: Tejun Heo <htejun@gmail.com>
---

Reading git-diff-tree failed