[ 49/98] KMS: fix EDID detailed timing frame rate

From: Greg Kroah-Hartman
Date: Tue Mar 26 2013 - 19:37:41 EST


3.8-stable review patch. If anyone has any objections, please let me know.

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

From: Torsten Duwe <torsten@xxxxxx>

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@xxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/gpu/drm/drm_edid.c | 1 +
1 file changed, 1 insertion(+)

--- 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;


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