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.
Cc: Vitaly Prosyak <vprosyak@xxxxxxx>
Cc: Roman Li <roman.li@xxxxxxx>
Cc: Qingqing Zhuo <Qingqing.Zhuo@xxxxxxx>
Cc: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Fixes: 7966f319c66d ("drm/amd/display: Introduce DML2")
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 97f402123fbb..73cc6e1b0e65 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -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_version >= DCN_VERSION_3_5)
+ 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);
}
--
2.42.0
