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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>
Tue, 11 Feb 2020 20:08:13 +0000 (15:08 -0500)
commit6c81917a0485ee2a1be0dc23321ac10ecfd9578b
tree93674b094e64f9c2ba44c231944a2f60c6c6828d
parent2b63d0ec0daf79ba503fa8bfa25e07dc3da274f3
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