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authorDavid S. Miller <davem@davemloft.net>2012-11-29 12:51:17 -0500
committerDavid S. Miller <davem@davemloft.net>2012-11-29 12:51:17 -0500
commit8a2cf062b27ef5511a7d8a7ce6662fbc04f671b8 (patch)
tree31f32c0d9a548f0dbbe9f3a32aca5767093d98b4 /drivers/media/i2c/soc_camera/mt9v022.c
parent3177bf6f922f62743133abbcbbbb5545f4133b2d (diff)
parente9296e89b85604862bd9ec2d54dc43edad775c0d (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/media/i2c/soc_camera/mt9v022.c')
-rw-r--r--drivers/media/i2c/soc_camera/mt9v022.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/media/i2c/soc_camera/mt9v022.c b/drivers/media/i2c/soc_camera/mt9v022.c
index 13057b966ee..333ef178d6f 100644
--- a/drivers/media/i2c/soc_camera/mt9v022.c
+++ b/drivers/media/i2c/soc_camera/mt9v022.c
@@ -263,9 +263,14 @@ static int mt9v022_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
if (ret & 1) /* Autoexposure */
ret = reg_write(client, mt9v022->reg->max_total_shutter_width,
rect.height + mt9v022->y_skip_top + 43);
- else
- ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH,
- rect.height + mt9v022->y_skip_top + 43);
+ /*
+ * If autoexposure is off, there is no need to set
+ * MT9V022_TOTAL_SHUTTER_WIDTH here. Autoexposure can be off
+ * only if the user has set exposure manually, using the
+ * V4L2_CID_EXPOSURE_AUTO with the value V4L2_EXPOSURE_MANUAL.
+ * In this case the register MT9V022_TOTAL_SHUTTER_WIDTH
+ * already contains the correct value.
+ */
}
/* Setup frame format: defaults apart from width and height */
if (!ret)