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authorhersen wu <hersenxs.wu@amd.com>2020-07-09 05:14:41 +0300
committerAlex Deucher <alexander.deucher@amd.com>2020-08-17 21:08:05 +0300
commit6ee90e88b976743835d4f34f3234d775c733ef12 (patch)
tree172717d686dfa1327b2cb205cbde83edddf8d594 /tools/perf/scripts/python
parent9804ecbba8f73916101ac36929bc647c3cb17155 (diff)
downloadlinux-6ee90e88b976743835d4f34f3234d775c733ef12.tar.xz
drm/amd/display: PSR eDP p-state warning occurs intermittently after unplug DP
[Why] with eDP + DP, each display use one pipe. after DP unplugged, eDP switch from one pipe to two pipes -- pipe split. dpp1_cm_set_regamma_pwl will be executed too. The duration from switch single pipe to dual pipes is a little long which could let eDP enter PSR mode. upon two pipes for eDP are setup, eDP PHY is disabled. front pipe is not really running to fetch data from frame buffer. i.e., dchubp is not in normal working status. execution of hubbub1_wm_change_req_wa may cause p-state warning. [How] disable eDP PSR before dc_commit_state. psr is disabled when execute hubbub1_wm_change_req_wa. Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Reviewed-by: Roman Li <Roman.Li@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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