upstream: [media] v4l: add enum_freq_bands support to tuner sub-device

Add VIDIOC_ENUM_FREQ_BANDS, enumerate supported frequency bands,
IOCTL support for sub-device tuners too.

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index adeeb0c..c87374d 100644 (file)
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -194,6 +194,7 @@ struct v4l2_subdev_tuner_ops {
        int (*s_radio)(struct v4l2_subdev *sd);
        int (*s_frequency)(struct v4l2_subdev *sd, const struct v4l2_frequency *freq);
        int (*g_frequency)(struct v4l2_subdev *sd, struct v4l2_frequency *freq);
+       int (*enum_freq_bands)(struct v4l2_subdev *sd, struct v4l2_frequency_band *band);
        int (*g_tuner)(struct v4l2_subdev *sd, struct v4l2_tuner *vt);
        int (*s_tuner)(struct v4l2_subdev *sd, const struct v4l2_tuner *vt);
        int (*g_modulator)(struct v4l2_subdev *sd, struct v4l2_modulator *vm);