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Code Issues Releases Wiki Activity

drm/amd/display: Call ATOM_INIT instead of ATOM_ENABLE for DMCUB

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[Why]
DMCUB command table doesn't support ATOM_ENABLE/ATOM_DISABLE anymore
so we never end up calling the DCN init path in DMCUB.

[How]
Map ATOM_ENABLE to ATOM_INIT only for DMCUB command table offloading.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@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>
This commit is contained in:
Nicholas Kazlauskas 2020-01-11 13:43:39 -05:00 committed by Alex Deucher
parent 0167da498d
commit cc934031dc
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/amd/display/dc/bios/command_table2.c
View file

@ -711,6 +711,10 @@ static void enable_disp_power_gating_dmcub(
power_gating.header.sub_type = DMUB_CMD__VBIOS_ENABLE_DISP_POWER_GATING;
power_gating.power_gating.pwr = *pwr;
/* ATOM_ENABLE is old API in DMUB */
if (power_gating.power_gating.pwr.enable == ATOM_ENABLE)
power_gating.power_gating.pwr.enable = ATOM_INIT;
dc_dmub_srv_cmd_queue(dmcub, &power_gating.header);
dc_dmub_srv_cmd_execute(dmcub);
dc_dmub_srv_wait_idle(dmcub);