From: Christian König <christian.koenig@amd.com>
Date: Thu, 29 Jan 2015 15:01:03 +0000 (+0100)
Subject: drm/radeon: fix PLLs on RS880 and older v2
X-Git-Tag: fixes-v4.0-rc1~202^2~2^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=72edd83cc9e5819ed1ee771519143d7594e059f0;p=pandora-kernel.git

drm/radeon: fix PLLs on RS880 and older v2

This is a workaround for RS880 and older chips which seem to have
an additional limit on the minimum PLL input frequency.

v2: fix signed/unsigned warning

bugs:
https://bugzilla.kernel.org/show_bug.cgi?id=91861
https://bugzilla.kernel.org/show_bug.cgi?id=83461

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