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 <[email protected]> Cc: Roman Li <[email protected]> Cc: Qingqing Zhuo <[email protected]> Cc: Daniel Wheeler <[email protected]> Cc: Alex Deucher <[email protected]> Fixes: 7966f319c66d ("drm/amd/display: Introduce DML2") Signed-off-by: Rodrigo Siqueira <[email protected]> --- 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
