From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Tue, 29 Jan 2013 13:27:39 +0000 (+0100)
Subject: drm: shut up invalid edid messages
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f934ec8c34b9dcefb5a4f35b0bda33bca289cbe6;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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>
---

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]) {