drm: shut up invalid edid messages

My cheapo monitor has an invalid block 1, resulting in a lot of dmesg spam every few seconds.

I get it the first time that the entire block is all 0xff..

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: stable@vger.kernel.org [v3.7]
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 51324256a657..e1aca7b53987 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -354,10 +354,14 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
                                 break;
                         }
                 }
-                if (i == 4)
+
+                if (i == 4 && print_bad_edid) {
                         dev_warn(connector->dev->dev,
                          "%s: Ignoring invalid EDID block %d.\n",
                          drm_get_connector_name(connector), j);
+
+                        connector->bad_edid_counter++;
+                }
         }
 
         if (valid_extensions != block[0x7e]) {