diff options
| -rw-r--r-- | drivers/media/platform/atmel/atmel-isi.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/media/platform/atmel/atmel-isi.c b/drivers/media/platform/atmel/atmel-isi.c index cda6b1a7f003..963dfd6e750e 100644 --- a/drivers/media/platform/atmel/atmel-isi.c +++ b/drivers/media/platform/atmel/atmel-isi.c @@ -555,6 +555,30 @@ static const struct isi_format *find_format_by_fourcc(struct atmel_isi *isi, 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) { @@ -577,6 +601,9 @@ static int isi_try_fmt(struct atmel_isi *isi, struct v4l2_format *f, 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) |