The VIDIOC_SUBDEV_G_FMT ioctl for this driver doesn't recognize
V4L2_SUBDEV_FORMAT_TRY and always works as if V4L2_SUBDEV_FORMAT_ACTIVE
is specified.
Cc: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
---
drivers/media/i2c/mt9m111.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/drivers/media/i2c/mt9m111.c b/drivers/media/i2c/mt9m111.c
index f0e47fd..acb4dee 100644
--- a/drivers/media/i2c/mt9m111.c
+++ b/drivers/media/i2c/mt9m111.c
@@ -528,6 +528,16 @@ static int mt9m111_get_fmt(struct v4l2_subdev *sd,
if (format->pad)
return -EINVAL;
+ if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
+#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
+ mf = v4l2_subdev_get_try_format(sd, cfg, 0);
+ format->format = *mf;
+ return 0;
+#else
+ return -ENOTTY;
+#endif
+ }
+
mf->width = mt9m111->width;
mf->height = mt9m111->height;
mf->code = mt9m111->fmt->code;
@@ -1090,6 +1100,26 @@ static int mt9m111_s_stream(struct v4l2_subdev *sd, int enable)
return 0;
}
+static int mt9m111_init_cfg(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg)
+{
+#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
+ struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
+ struct v4l2_mbus_framefmt *format =
+ v4l2_subdev_get_try_format(sd, cfg, 0);
+
+ format->width = mt9m111->width;
+ format->height = mt9m111->height;
+ format->code = mt9m111->fmt->code;
+ format->colorspace = mt9m111->fmt->colorspace;
+ format->field = V4L2_FIELD_NONE;
+ format->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
+ format->quantization = V4L2_QUANTIZATION_DEFAULT;
+ format->xfer_func = V4L2_XFER_FUNC_DEFAULT;
+#endif
+ return 0;
+}
+
static int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
struct v4l2_mbus_config *cfg)
{
@@ -1115,6 +1145,7 @@ static const struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
};
static const struct v4l2_subdev_pad_ops mt9m111_subdev_pad_ops = {
+ .init_cfg = mt9m111_init_cfg,
.enum_mbus_code = mt9m111_enum_mbus_code,
.get_selection = mt9m111_get_selection,
.set_selection = mt9m111_set_selection,
--
2.7.4
