It is required by the standard that the field order is set by the
driver.
Signed-off-by: Thibault Saunier <thibault.saunier@xxxxxxxxxxxxxxx>
---
Changes in v3:
- Do not check values in the g_fmt functions as Andrzej explained in previous review
Changes in v2:
- Fix a silly build error that slipped in while rebasing the patches
drivers/media/platform/s5p-mfc/s5p_mfc_dec.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c b/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
index 16bc3eaad0ff..e249c5cee262 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
@@ -385,6 +385,20 @@ static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
struct s5p_mfc_dev *dev = video_drvdata(file);
struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
struct s5p_mfc_fmt *fmt;
+ enum v4l2_field field;
+
+ field = f->fmt.pix.field;
+ if (field == V4L2_FIELD_ANY) {
+ field = V4L2_FIELD_NONE;
+ } else if (field != V4L2_FIELD_NONE) {
+ mfc_debug(2, "Not supported field order(%d)\n", pix_mp->field);
+ return -EINVAL;
+ }
+
+ /* V4L2 specification suggests the driver corrects the format struct
+ * if any of the dimensions is unsupported
+ */
+ f->fmt.pix.field = field;
mfc_debug(2, "Type is %d\n", f->type);
if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
--
2.11.1
--
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