diff options
| author | Hersen Wu <hersenxs.wu@amd.com> | 2023-02-09 18:35:00 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-02-28 14:29:36 -0500 |
| commit | 504d3cae8b6718ab9c2fbef9e4cb56deb29ea9ee (patch) | |
| tree | 3de0b8d73787e6822f9b11ce170881b3055c6e98 /drivers/gpu/drm/amd/display/dc/dcn30 | |
| parent | a06d565b4a1c032ff8a8d22ceb39c061443208d9 (diff) | |
drm/amd/display: dcn32/321 dsc_pg_control not executed properly
[why]
during boot up or resume from s3, hw default value of
domain_power_forceon is 1. when program domain_power_gate
to 1 to power down hw block, hw will not change to power
off due to domain_power_forceon = 1.
[how]
enable_power_gating_plane(true) should be executed to set
domain_power_forceon to 0 before dsc_pg_control.
dsc_pg_control is already called by dcn3x_init_hw-->
init_pipes--> dsc_pg_control. no need be programmed with
dcn3x_init_hw one more time.
to trigger dchub, dsc block power state change, need
program dc_ip_request_cntl to notify hw block.
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn30')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c index 6ef85e71380c..1d243c549562 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c @@ -531,11 +531,6 @@ void dcn30_init_hw(struct dc *dc) } } - /* Power gate DSCs */ - 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 */ link_blank_all_dp_displays(dc); |