drm/amd/display: DCHUB underflow counter increasing in some scenarios

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[Why]
When unplugging a display, the underflow counter can be seen to
increase because PSTATE switch is allowed even when some planes are not
blanked.

[How]
Check that all planes are not active instead of all streams before
allowing PSTATE change.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Aric Cyr 2021-03-08 15:43:34 -05:00 • committed by Alex Deucher

parent 592a631883

commit 4710430a77

1 changed files with 3 additions and 1 deletions

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drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c

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