[PATCH 29/45] drm/msm/dp: skip reading the EDID for MST cases

[Abhinav Kumar]

For MST cases, EDID is handled through AUX sideband messaging.
Skip the EDID read during hotplug handle for MST cases.

Signed-off-by: Abhinav Kumar <quic_abhin...@quicinc.com>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c 
b/drivers/gpu/drm/msm/dp/dp_display.c
index 
033d238e956263c1212fce45aab01316ef341edb..a67bc7c1b83a5a9996435804ff7337f72dae93a0
 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -420,9 +420,11 @@ static int msm_dp_display_process_hpd_high(struct 
msm_dp_display_private *dp)
        if (rc)
                goto end;
 
-       rc = msm_dp_panel_read_edid(dp->panel, connector);
-       if (rc)
-               goto end;
+       if (dp->max_stream <= DEFAULT_STREAM_COUNT || 
!msm_dp_panel_read_mst_cap(dp->panel)) {
+               rc = msm_dp_panel_read_edid(dp->panel, connector);
+               if (rc)
+                       goto end;
+       }
 
        msm_dp_link_process_request(dp->link);
 

-- 
2.34.1