[PATCH 5.17 248/343] drm/amd/display: Remove redundant dsc power gating from init_hw

From: Greg Kroah-Hartman
Date: Tue Apr 12 2022 - 04:58:14 EST


From: Roman Li <Roman.Li@xxxxxxx>

[ Upstream commit 95707203407c4cf0b7e520a99d6f46d8aed4b57f ]

[Why]
DSC Power down code has been moved from dcn31_init_hw into init_pipes()
Need to remove it from dcn10_init_hw() as well to avoid duplicated action
on dcn1.x/2.x

[How]
Remove DSC power down code from dcn10_init_hw()

Fixes: 8fa6f4c5715c ("drm/amd/display: fixed the DSC power off sequence during Driver PnP")

Reviewed-by: Anthony Koo <Anthony.Koo@xxxxxxx>
Reviewed-by: Eric Yang <Eric.Yang2@xxxxxxx>
Acked-by: Alex Hung <alex.hung@xxxxxxx>
Signed-off-by: Roman Li <Roman.Li@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 7 -------
1 file changed, 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 636e2d90ff93..2cefdd96d0cb 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -1493,13 +1493,6 @@ void dcn10_init_hw(struct dc *dc)
link->link_status.link_active = true;
}

- /* Power gate DSCs */
- if (!is_optimized_init_done) {
- for (i = 0; i < res_pool->res_cap->num_dsc; i++)
- if (hws->funcs.dsc_pg_control != NULL)
- hws->funcs.dsc_pg_control(hws, res_pool->dscs[i]->inst, false);
- }
-
/* we want to turn off all dp displays before doing detection */
if (dc->config.power_down_display_on_boot)
dc_link_blank_all_dp_displays(dc);
--
2.35.1