drm/edid: limit printk when facing bad edid

Limit printing bad edid information at one time per connector.
Connector that are connected to a bad monitor/kvm will likely
stay connected to the same bad monitor/kvm and it makes no
sense to keep printing the bad edid message.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 617d87ae2b1a..316ce64e5590 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -590,6 +590,7 @@ struct drm_connector {
         int video_latency[2];   /* [0]: progressive, [1]: interlaced */
         int audio_latency[2];
         int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
+        unsigned bad_edid_counter;
 };
 
 /**
@@ -1032,7 +1033,7 @@ extern int drm_add_modes_noedid(struct drm_connector *connector,
                                 int hdisplay, int vdisplay);
 
 extern int drm_edid_header_is_valid(const u8 *raw_edid);
-extern bool drm_edid_block_valid(u8 *raw_edid, int block);
+extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
 extern bool drm_edid_is_valid(struct edid *edid);
 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
                                            int hsize, int vsize, int fresh,