v4l2-ctl-modes: use reduced fps only with reduced blanking v2
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Message ID 1437382798-16061-1-git-send-email-prladdha@cisco.com
State New
Headers show

Commit Message

Prashant Laddha July 20, 2015, 8:59 a.m. UTC
In the absence of reduced blanking v2, the clock granularity is not
sufficient enough to allow pixel clock reduction done by factor of
1000 / 1001 in case of reduced fps.

Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Prashant Laddha <prladdha@cisco.com>
---
 utils/v4l2-ctl/v4l2-ctl-modes.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/utils/v4l2-ctl/v4l2-ctl-modes.cpp b/utils/v4l2-ctl/v4l2-ctl-modes.cpp
index e44b229..236f19f 100644
--- a/utils/v4l2-ctl/v4l2-ctl-modes.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-modes.cpp
@@ -336,7 +336,7 @@  bool calc_cvt_modeline(int image_width, int image_height,
 	} else {
 		cvt->polarities = V4L2_DV_VSYNC_POS_POL;
 	}
-	if (reduced_fps && v_refresh % 6 == 0)
+	if (rb_v2 && reduced_fps && v_refresh % 6 == 0)
 		cvt->flags |= V4L2_DV_FL_REDUCED_FPS;
 
 	return true;