From: Eric Yang <eric.ya...@amd.com> We have an mst dock firmware that will emulate an EDID with bad checksum.
Change-Id: Ice8515c929230366ec4ad7da743b448447c6db7e Signed-off-by: Eric Yang <eric.ya...@amd.com> Reviewed-by: Tony Cheng <tony.ch...@amd.com> Acked-by: Harry Wentland <harry.wentl...@amd.com> --- drivers/gpu/drm/amd/display/dc/core/dc.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index f4ffbf2e2caf..8583d9e05721 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1637,12 +1637,17 @@ struct dc_sink *dc_link_add_remote_sink( &dc_sink->dc_edid, &dc_sink->edid_caps); - if (edid_status != EDID_OK) - goto fail; + /* + * Treat device as no EDID device if EDID + * parsing fails + */ + if (edid_status != EDID_OK) { + dc_sink->dc_edid.length = 0; + dm_error("Bad EDID, status%d!\n", edid_status); + } return dc_sink; -fail: - dc_link_remove_remote_sink(link, dc_sink); + fail_add_sink: dc_sink_release(dc_sink); return NULL; -- 2.14.1 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx