From: Charlene Liu <Charlene.Liu@xxxxxxx> [why] currently dc has never reset this dpcd_cap.dpcd_rev. [how] ideally we should reset this before redo detection. change the passive dongle only for now to reduce the impact. Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx> Signed-off-by: Charlene Liu <Charlene.Liu@xxxxxxx> --- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 6132b645bfd1..655b48c5ef37 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -541,6 +541,7 @@ static void link_disconnect_sink(struct dc_link *link) } link->dpcd_sink_count = 0; + //link->dpcd_caps.dpcd_rev.raw = 0; } static void link_disconnect_remap(struct dc_sink *prev_sink, struct dc_link *link) @@ -742,6 +743,7 @@ static bool detect_dp(struct dc_link *link, sink_caps, audio_support); link->dpcd_caps.dongle_type = sink_caps->dongle_type; + link->dpcd_caps.dpcd_rev.raw = 0; } return true; -- 2.25.1 _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
