return NULL;
}
+static void isi_try_fse(struct atmel_isi *isi, const struct isi_format *isi_fmt,
+ struct v4l2_subdev_pad_config *pad_cfg)
+{
+ int ret;
+ struct v4l2_subdev_frame_size_enum fse = {
+ .code = isi_fmt->mbus_code,
+ .which = V4L2_SUBDEV_FORMAT_TRY,
+ };
+
+ ret = v4l2_subdev_call(isi->entity.subdev, pad, enum_frame_size,
+ pad_cfg, &fse);
+ /*
+ * Attempt to obtain format size from subdev. If not available,
+ * just use the maximum ISI can receive.
+ */
+ if (ret) {
+ pad_cfg->try_crop.width = MAX_SUPPORT_WIDTH;
+ pad_cfg->try_crop.height = MAX_SUPPORT_HEIGHT;
+ } else {
+ pad_cfg->try_crop.width = fse.max_width;
+ pad_cfg->try_crop.height = fse.max_height;
+ }
+}
+
static int isi_try_fmt(struct atmel_isi *isi, struct v4l2_format *f,
const struct isi_format **current_fmt)
{
pixfmt->height = clamp(pixfmt->height, 0U, MAX_SUPPORT_HEIGHT);
v4l2_fill_mbus_format(&format.format, pixfmt, isi_fmt->mbus_code);
+
+ isi_try_fse(isi, isi_fmt, &pad_cfg);
+
ret = v4l2_subdev_call(isi->entity.subdev, pad, set_fmt,
&pad_cfg, &format);
if (ret < 0)