| commit | f358b39d187500717b4bc8633cef45d87eff0a3e | |
| author | Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com> | |
| Tue, 17 Jul 2018 15:53:54 +0000 (17 11:53 -0400) | ||
| committer | Alex Deucher <alexander.deucher@amd.com> | |
| Fri, 27 Jul 2018 14:07:42 +0000 (27 09:07 -0500) | ||
| tree | d4b5e7ea455eafaf86d6c4c6e96b8e988bdbff9f | treesnapshot (tar.gz zip) |
| parent | 65c78961b30005447a0d9b285de93354d8308f34 | commitdiff |
drm/amd/display: Fix Vega10 black screen after mode change
[Why]
The sequence is slightly changed when bring .set_bandwidth out
from the end of programming backend to the end of programming
surface. Vega10 doesn't like to get clocks updated if
stream_count is zero in the current context (Atomic Reset).
[How]
Do not update clocks if no stream is showing up in the context.
Fixes 1b2b130192 "dc: Remove 300Mhz minimum disp clk limit."
Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
The sequence is slightly changed when bring .set_bandwidth out
from the end of programming backend to the end of programming
surface. Vega10 doesn't like to get clocks updated if
stream_count is zero in the current context (Atomic Reset).
[How]
Do not update clocks if no stream is showing up in the context.
Fixes 1b2b130192 "dc: Remove 300Mhz minimum disp clk limit."
Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>