drm/amd/display: wait for set pipe mcp command completion

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[Why]
When the driver sends a pipe set command to the DMCU FW, it does not wait
for the command to complete. This can lead to unpredictable behavior if,
for example, the driver were to request a pipe disable to the FW via MCP,
then power down some hardware before the firmware has completed processing
the command.

[How]
Wait for the DMCU FW to finish processing set pipe commands

Signed-off-by: Josip Pavic <Josip.Pavic@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Josip Pavic 2019-09-12 15:40:08 -04:00 • committed by Alex Deucher

parent 486cc0ee55

commit 15caeabc57

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/amd/display/dc/dce/dce_abm.c

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