From 4f2f203976964e267dc477de6648bdb3acd2b74b Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Mon, 19 May 2014 19:21:29 -0400
Subject: [PATCH] drm/radeon/pm: don't allow debugfs/sysfs access when PX card
 is off (v2)
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When the PX card is off don't try and access it. Avoid hw access
to the card while it's off (e.g., reading back invalid temperature).

v2: be less strict

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=76321

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christian König <christian.koenig@amd.com>
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