[media] V4L: mx3_camera: correct 'sizeimage' value reporting

The 'pix->width' field may be updated in mx3_camera_set_fmt() to
fulfill the IPU stride line alignment requirements. If this update
takes place, the 'fmt.pix.sizeimage' field in the struct v4l2_format
stucture returned by VIDIOC_S_FMT is wrong. We need to update the
'pix->sizeimage' field in the mx3_camera_set_fmt() function to fix
this issue.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/mx3_camera.c b/drivers/media/video/mx3_camera.c
index b9cb4a436959b8bd82b535b87d326546f134069c..1cfff4132a0bc670fb91c726d16a240b75d610e2 100644 (file)
--- a/drivers/media/video/mx3_camera.c
+++ b/drivers/media/video/mx3_camera.c
@@ -918,6 +918,12 @@ static int mx3_camera_set_fmt(struct soc_camera_device *icd,
        pix->colorspace         = mf.colorspace;
        icd->current_fmt        = xlate;
 
+       pix->bytesperline = soc_mbus_bytes_per_line(pix->width,
+                                                   xlate->host_fmt);
+       if (pix->bytesperline < 0)
+               return pix->bytesperline;
+       pix->sizeimage = pix->height * pix->bytesperline;
+
        dev_dbg(icd->dev.parent, "Sensor set %dx%d\n", pix->width, pix->height);
 
        return ret;