drm/amd/display: Limit minimum DPPCLK to 100MHz.
authorYongqiang Sun <yongqiang.sun@amd.com>
Thu, 23 Jan 2020 21:30:15 +0000 (16:30 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 6 Feb 2020 20:04:38 +0000 (15:04 -0500)
commit5737f367af4840affa174562036d54eeb4288d96
treea4338421682c165419159b89e84fa4e4f318a02c
parent04ad71bd146b735972134ab53540ab7955b4d1c2
drm/amd/display: Limit minimum DPPCLK to 100MHz.

[Why]
Underflow is observed when plug in a 4K@60 monitor with
1366x768 eDP due to DPPCLK is too low.

[How]
Limit minimum DPPCLK to 100MHz.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c