From: Fudongwang <[email protected]> [Why & How] For DCN harvest case, if there is no dmcub support, we should return false to avoid bugcheck later.
Reviewed-by: Aric Cyr <[email protected]> Signed-off-by: Jerry Zuo <[email protected]> Signed-off-by: Fudongwang <[email protected]> --- drivers/gpu/drm/amd/display/dc/core/dc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 9897e322e2d5..f07b13ad4ead 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -5574,6 +5574,9 @@ void dc_mclk_switch_using_fw_based_vblank_stretch_shut_down(struct dc *dc) */ bool dc_is_dmub_outbox_supported(struct dc *dc) { + if (!dc->caps.dmcub_support) + return false; + switch (dc->ctx->asic_id.chip_family) { case FAMILY_YELLOW_CARP: -- 2.34.1
