linux-kernel - [PATCH 3.13 022/151] [media] omap3isp: preview: Fix the crop margins

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Message-Id: <1399045139-4531-23-git-send-email-kamal@canonical.com>
Date:	Fri,  2 May 2014 08:36:50 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Florian Vaussard <florian.vaussard@...l.ch>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13 022/151] [media] omap3isp: preview: Fix the crop margins

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

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

From: Florian Vaussard <florian.vaussard@...l.ch>

commit 8b57b9669aa884ac75b8d09c251d6b1755533c15 upstream.

Commit 3fdfedaaa "[media] omap3isp: preview: Lower the crop margins"
accidentally changed the previewer's cropping, causing the previewer
to miss four pixels on each line, thus corrupting the final image.
Restored the removed setting.

Signed-off-by: Florian Vaussard <florian.vaussard@...l.ch>
Signed-off-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@...sung.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/media/platform/omap3isp/isppreview.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/media/platform/omap3isp/isppreview.c b/drivers/media/platform/omap3isp/isppreview.c
index cd8831a..e2e4610 100644
--- a/drivers/media/platform/omap3isp/isppreview.c
+++ b/drivers/media/platform/omap3isp/isppreview.c
@@ -1079,6 +1079,7 @@ static void preview_config_input_format(struct isp_prev_device *prev,
  */
 static void preview_config_input_size(struct isp_prev_device *prev, u32 active)
 {
+	const struct v4l2_mbus_framefmt *format = &prev->formats[PREV_PAD_SINK];
 	struct isp_device *isp = to_isp_device(prev);
 	unsigned int sph = prev->crop.left;
 	unsigned int eph = prev->crop.left + prev->crop.width - 1;
@@ -1086,6 +1087,14 @@ static void preview_config_input_size(struct isp_prev_device *prev, u32 active)
 	unsigned int elv = prev->crop.top + prev->crop.height - 1;
 	u32 features;
 
+	if (format->code != V4L2_MBUS_FMT_Y8_1X8 &&
+	    format->code != V4L2_MBUS_FMT_Y10_1X10) {
+		sph -= 2;
+		eph += 2;
+		slv -= 2;
+		elv += 2;
+	}
+
 	features = (prev->params.params[0].features & active)
 		 | (prev->params.params[1].features & ~active);
 
-- 
1.9.1

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