From: Jeff Garzik <jgarzik@pobox.com>
Date: Thu, 17 Nov 2005 10:44:44 +0000 (-0500)
Subject: [libata sata_mv] handle lack of hardware nIEN support
X-Git-Tag: v2.6.15-rc2~69^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2c91a8819e315e9fd1aef3ff57badb6c1be3f80;p=pandora-kernel.git

[libata sata_mv] handle lack of hardware nIEN support

Handle errata (it was unintentional on this h/w, whereas its intentional
on others) whereby the nIEN bit in Device Control is ignored, leading to
a situation where a hardware interrupt completes the qc before the
polling code has a chance to.

This will get fixed The Right Way(tm) once Albert Lee's irq-pio
branch is merged, as the more natural PIO method on this hardware is
interrupt-driven.
---

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