tree c3ea01e726c16e1c43a00fe76131966df24a929a
parent a78b80f51e57273961c397b5e9e224860228b965
author Christian König <christian.koenig@amd.com> 1422543663 +0100
committer Alex Deucher <alexander.deucher@amd.com> 1422895173 -0500

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