Patchwork [120/150] KMS: fix EDID detailed timing frame rate

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Submitter Luis Henriques
Date March 26, 2013, 3:20 p.m.
Message ID <1364311249-14454-121-git-send-email-luis.henriques@canonical.com>
Download mbox | patch
Permalink /patch/231391/
State New
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Comments

Luis Henriques - March 26, 2013, 3:20 p.m.
3.5.7.9 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Torsten Duwe <torsten@lst.de>

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: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/gpu/drm/drm_edid.c | 1 +
 1 file changed, 1 insertion(+)

Patch

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index f689958..c674823 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -957,6 +957,7 @@  set_size:
 	}
 
 	mode->type = DRM_MODE_TYPE_DRIVER;
+	mode->vrefresh = drm_mode_vrefresh(mode);
 	drm_mode_set_name(mode);
 
 	return mode;