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drm/amd/display: Power-gate all DSCs at driver init time 

[why]
DSC should be powered-on only on as-needed basis, i.e. if the mode
requires it

[how]
Loop over all the DSCs at driver init time and power-gate each

Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nikola Cornij 2019-06-19 14:30:52 -04:00 committed by Alex Deucher
parent 8fca3d9415
commit 75c3500023
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
View File

@ -624,6 +624,10 @@ static void dcn20_init_hw(struct dc *dc)
}
}
/* Power gate DSCs */
for (i = 0; i < res_pool->res_cap->num_dsc; i++)
dcn20_dsc_pg_control(hws, res_pool->dscs[i]->inst, false);
/* Blank pixel data with OPP DPG */
for (i = 0; i < dc->res_pool->timing_generator_count; i++) {
struct timing_generator *tg = dc->res_pool->timing_generators[i];