From: Jun Lei <Jun.Lei@amd.com>
Date: Fri, 1 Mar 2019 16:21:17 +0000 (-0500)
Subject: drm/amd/display: extend EDID support to 1kb
X-Git-Tag: v5.2-rc1~118^2~31^2~67
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=f38e720af8c56affce99453e2b573ad8b2ceca93;p=linux.git

drm/amd/display: extend EDID support to 1kb

[why]
There exist displays with EDIDs > 512 bytes, existing code
will cause us to ignore all extension blocks.

Signed-off-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 00be40a3dde3..c8e2dc5ec62a 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -103,7 +103,7 @@ struct dc_context {
 };
 
 
-#define DC_MAX_EDID_BUFFER_SIZE 512
+#define DC_MAX_EDID_BUFFER_SIZE 1024
 #define EDID_BLOCK_SIZE 128
 #define MAX_SURFACE_NUM 4
 #define NUM_PIXEL_FORMATS 10