From: Sean Paul seanpaul@chromium.org

[ Upstream commit 268de6530aa18fe5773062367fd119f0045f6e88 ]

Spec says[1] Allocated_PBN is 16 bits

[1]- DisplayPort 1.2 Spec, Section 2.11.9.8, Table 2-98

Fixes: ad7f8a1f9ced ("drm/helper: add Displayport multi-stream helper (v0.6)") Cc: Lyude Paul lyude@redhat.com Cc: Todd Previte tprevite@gmail.com Cc: Dave Airlie airlied@redhat.com Cc: Maarten Lankhorst maarten.lankhorst@linux.intel.com Cc: Maxime Ripard maxime.ripard@bootlin.com Cc: Sean Paul sean@poorly.run Cc: David Airlie airlied@linux.ie Cc: Daniel Vetter daniel@ffwll.ch Cc: dri-devel@lists.freedesktop.org Reviewed-by: Lyude Paul lyude@redhat.com Signed-off-by: Sean Paul seanpaul@chromium.org Link: https://patchwork.freedesktop.org/patch/msgid/20190829165223.129662-1-sean@p... Signed-off-by: Sasha Levin sashal@kernel.org --- include/drm/drm_dp_mst_helper.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h index d55abb75f29a..eec6cba204ea 100644 --- a/include/drm/drm_dp_mst_helper.h +++ b/include/drm/drm_dp_mst_helper.h @@ -313,7 +313,7 @@ struct drm_dp_resource_status_notify {

struct drm_dp_query_payload_ack_reply { u8 port_number; - u8 allocated_pbn; + u16 allocated_pbn; };

struct drm_dp_sideband_msg_req_body {