drm/amd/display: Insert pulling smu busy status before sending another request

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[why]
Make sure smu is not busy before sending another request, this is to
prevent stress failures from MS.

[how]
Check to make sure the SMU fw busy signal is cleared before sending
another request

Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Oliver Logush <oliver.logush@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Oliver Logush 2022-03-22 10:26:19 -04:00 • committed by Alex Deucher

parent 593692d2de

commit c1b972a18d

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c

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