From: Torsten Duwe <torsten@lst.de>
Date: Sat, 23 Mar 2013 14:39:34 +0000 (+0100)
Subject: KMS: fix EDID detailed timing frame rate
X-Git-Tag: v3.8.5~50
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=faec22ffe86d0732eb090c6e6cf5d38543a6a361;p=users%2Fjedix%2Flinux-maple.git

KMS: fix EDID detailed timing frame rate

commit c19b3b0f6eed552952845e4ad908dba2113d67b4 upstream.

When KMS has parsed an EDID "detailed timing", it leaves the frame rate
zeroed.  Consecutive (debug-) output of that mode thus yields 0 for
vsync.  This simple fix also speeds up future invocations of
drm_mode_vrefresh().

While it is debatable whether this qualifies as a -stable fix I'd apply
it for consistency's sake; drm_helper_probe_single_connector_modes()
does the same thing already for all probed modes.

Signed-off-by: Torsten Duwe <duwe@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 2977b435b2a2..dfd9ed3d10c8 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -975,6 +975,7 @@ set_size:
 	}
 
 	mode->type = DRM_MODE_TYPE_DRIVER;
+	mode->vrefresh = drm_mode_vrefresh(mode);
 	drm_mode_set_name(mode);
 
 	return mode;