From: Ben Skeggs <bskeggs@redhat.com>
Date: Wed, 26 Sep 2012 23:13:43 +0000 (+1000)
Subject: drm/nvc0/fifo: ignore bits in PFIFO_INTR that aren't set in PFIFO_INTR_EN
X-Git-Tag: v3.6~10^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=833dd8224edda0bc1cfa1b0fd5cbe7a36fd59db8;p=pandora-kernel.git

drm/nvc0/fifo: ignore bits in PFIFO_INTR that aren't set in PFIFO_INTR_EN

PFIFO_INTR = 0x40000000 appears to be a normal case on nvc0/nve0 PFIFO,
the binary driver appears to completely ignore it in its PFIFO interrupt
handler and even masks off the bit (as we do) in PFIFO_INTR_EN at init
time.

The bits still light up in the hardware sometimes though, so lets just
ignore any bits we haven't explicitely requested.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---

Reading git-diff-tree failed