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authorAnatolij Gustschin <agust@denx.de>2012-09-27 19:05:27 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-11-22 11:36:50 -0200
commitb6f50b49b9712f49c377e9e3587906e27bea39d0 (patch)
tree732369ee8c06c319e0660279ba816e69521d2ace /drivers/media/i2c
parentd0bac768fbe274f60d41d759c76f7ba2b2e98aeb (diff)
downloadop-kernel-dev-b6f50b49b9712f49c377e9e3587906e27bea39d0.zip
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[media] mt9v022: set y_skip_top field to zero as default
Set "y_skip_top" to zero and revise comment as I do not see this line corruption on two different mt9v022 setups. The first read-out line is perfectly fine. Add mt9v022 platform data configuring y_skip_top for platforms that have issues with the first read-out line. Set y_skip_top to 1 for pcm990 board. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/i2c')
-rw-r--r--drivers/media/i2c/soc_camera/mt9v022.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/media/i2c/soc_camera/mt9v022.c b/drivers/media/i2c/soc_camera/mt9v022.c
index 5bc5a92..84d204f 100644
--- a/drivers/media/i2c/soc_camera/mt9v022.c
+++ b/drivers/media/i2c/soc_camera/mt9v022.c
@@ -15,6 +15,7 @@
#include <linux/log2.h>
#include <linux/module.h>
+#include <media/mt9v022.h>
#include <media/soc_camera.h>
#include <media/soc_mediabus.h>
#include <media/v4l2-subdev.h>
@@ -869,6 +870,7 @@ static int mt9v022_probe(struct i2c_client *client,
struct mt9v022 *mt9v022;
struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+ struct mt9v022_platform_data *pdata = icl->priv;
int ret;
if (!icl) {
@@ -932,10 +934,10 @@ static int mt9v022_probe(struct i2c_client *client,
mt9v022->chip_control = MT9V022_CHIP_CONTROL_DEFAULT;
/*
- * MT9V022 _really_ corrupts the first read out line.
- * TODO: verify on i.MX31
+ * On some platforms the first read out line is corrupted.
+ * Workaround it by skipping if indicated by platform data.
*/
- mt9v022->y_skip_top = 1;
+ mt9v022->y_skip_top = pdata ? pdata->y_skip_top : 0;
mt9v022->rect.left = MT9V022_COLUMN_SKIP;
mt9v022->rect.top = MT9V022_ROW_SKIP;
mt9v022->rect.width = MT9V022_MAX_WIDTH;
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