linux-kernel - [PATCH v2 2/3] video: display_timing: Add flags to select the edge when the sync is driven

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Date:   Thu, 22 Sep 2016 13:35:25 +0300
From:   Peter Ujfalusi <peter.ujfalusi@...com>
To:     <robh+dt@...nel.org>, <plagnioj@...osoft.com>,
        <tomi.valkeinen@...com>, <airlied@...ux.ie>,
        <thierry.reding@...il.com>
CC:     <linux-fbdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <daniel.vetter@...ll.ch>, <dri-devel@...ts.freedesktop.org>,
        <devicetree@...r.kernel.org>
Subject: [PATCH v2 2/3] video: display_timing: Add flags to select the edge when the sync is driven

The sync can be - and for some panels it must be - driven on different edge
then the data.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
CC: Rob Herring <robh+dt@...nel.org>
CC: Mark Rutland <mark.rutland@....com>
CC: devicetree@...r.kernel.org
---
 include/video/display_timing.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/video/display_timing.h b/include/video/display_timing.h
index 28d9d0d566ca..3d289e990aca 100644
--- a/include/video/display_timing.h
+++ b/include/video/display_timing.h
@@ -28,6 +28,10 @@ enum display_flags {
 	DISPLAY_FLAGS_INTERLACED	= BIT(8),
 	DISPLAY_FLAGS_DOUBLESCAN	= BIT(9),
 	DISPLAY_FLAGS_DOUBLECLK		= BIT(10),
+	/* drive sync on pos. edge */
+	DISPLAY_FLAGS_SYNC_POSEDGE	= BIT(11),
+	/* drive sync on neg. edge */
+	DISPLAY_FLAGS_SYNC_NEGEDGE	= BIT(12),
 };
 
 /*
-- 
2.10.0