From: Eric Yang Date: Fri, 24 Aug 2018 20:54:14 +0000 (-0400) Subject: drm/amd/display: use link type to decide stream enc acquisition X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=cae50a43b931c6d70c7e16e1128af10398d8635a;p=openwrt%2Fstaging%2Fblogic.git drm/amd/display: use link type to decide stream enc acquisition [Why] Virtual sink is used when set mode happens on a disconnected display to allow the mode set to proceed. This did not work with MST because the logic for acquiring stream encoder uses stream signal to determine the special handling is required, and stream signal is virtual instead of DP in this case. [How] Use link type to decide instead. Signed-off-by: Eric Yang Reviewed-by: Tony Cheng Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- 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 f85fa7b55efb..d981755d1e4d 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -1762,7 +1762,7 @@ static struct stream_encoder *find_first_free_match_stream_enc_for_link( * required for non DP connectors. */ - if (j >= 0 && dc_is_dp_signal(stream->signal)) + if (j >= 0 && link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) return pool->stream_enc[j]; return NULL;