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drm/amd/display: Fix DMUB errors introduced by DML2

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When DML 2 was introduced, it changed part of the generic sequence of
DC, which caused issues on previous DCNs with DMUB support. This commit
ensures the new sequence only works for new DCNs from 3.5 and above.

Changes since V1:
- Harry: Use the attribute using_dml2 instead of check the DCN version.

Cc: Vitaly Prosyak <vprosyak@amd.com>
Cc: Roman Li <roman.li@amd.com>
Cc: Qingqing Zhuo <Qingqing.Zhuo@amd.com>
Cc: Daniel Wheeler <daniel.wheeler@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Fixes: 7966f319c6 ("drm/amd/display: Introduce DML2")
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rodrigo Siqueira 2023-10-20 10:06:50 -06:00 committed by Alex Deucher
parent e5f52a84bf
commit 210aa6650c
1 changed files with 5 additions and 4 deletions
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9
drivers/gpu/drm/amd/display/dc/core/dc_resource.c
View File

@ -321,10 +321,11 @@ struct resource_pool *dc_create_resource_pool(struct dc *dc,
res_pool->ref_clocks.xtalin_clock_inKhz;
res_pool->ref_clocks.dchub_ref_clock_inKhz =
res_pool->ref_clocks.xtalin_clock_inKhz;
if (res_pool->hubbub && res_pool->hubbub->funcs->get_dchub_ref_freq)
res_pool->hubbub->funcs->get_dchub_ref_freq(res_pool->hubbub,
res_pool->ref_clocks.dccg_ref_clock_inKhz,
&res_pool->ref_clocks.dchub_ref_clock_inKhz);
if (dc->debug.using_dml2)
if (res_pool->hubbub && res_pool->hubbub->funcs->get_dchub_ref_freq)
res_pool->hubbub->funcs->get_dchub_ref_freq(res_pool->hubbub,
res_pool->ref_clocks.dccg_ref_clock_inKhz,
&res_pool->ref_clocks.dchub_ref_clock_inKhz);
} else
ASSERT_CRITICAL(false);
}