Quoting Kuogee Hsieh (2021-07-13 08:54:05) > diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c > b/drivers/gpu/drm/msm/dp/dp_panel.c > index 88196f7..0fdb551 100644 > --- a/drivers/gpu/drm/msm/dp/dp_panel.c > +++ b/drivers/gpu/drm/msm/dp/dp_panel.c > @@ -303,7 +303,12 @@ void dp_panel_handle_sink_request(struct dp_panel > *dp_panel) > panel = container_of(dp_panel, struct dp_panel_private, dp_panel); > > if (panel->link->sink_request & DP_TEST_LINK_EDID_READ) { > - u8 checksum = dp_panel_get_edid_checksum(dp_panel->edid); > + u8 checksum; > + > + if (dp_panel->edid) > + checksum = dp_panel_get_edid_checksum(dp_panel->edid); > + else > + checksum = dp_panel->connector->real_edid_checksum;
Is there any reason why we can't use connector->real_edid_checksum all the time? > > dp_link_send_edid_checksum(panel->link, checksum); > dp_link_send_test_response(panel->link);