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media: vimc: add ancillary lens

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Add lens to vimc driver and link them with sensors using ancillary links.
Provides an example of ancillary link usage.The lens supports
FOCUS_ABSOLUTE control.

Test example: With default vimc topology
> media-ctl -p
Media controller API version 5.18.0
...
- entity 28: Lens A (0 pad, 0 link)
             type V4L2 subdev subtype Lens flags 0
             device node name /dev/v4l-subdev6
- entity 29: Lens B (0 pad, 0 link)
             type V4L2 subdev subtype Lens flags 0
             device node name /dev/v4l-subdev7
> v4l2-ctl -d /dev/v4l-subdev7 -C focus_absolute
focus_absolute: 0

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Yunke Cao <yunkec@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Yunke Cao
2022-06-28 01:53:52 +01:00
committed by Mauro Carvalho Chehab
parent 46347e3ec6
commit d534b9520a
4 changed files with 170 additions and 21 deletions
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1
drivers/media/test-drivers/vimc/vimc-common.h
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@@ -171,6 +171,7 @@ extern struct vimc_ent_type vimc_sen_type;
extern struct vimc_ent_type vimc_deb_type;
extern struct vimc_ent_type vimc_sca_type;
extern struct vimc_ent_type vimc_cap_type;
extern struct vimc_ent_type vimc_len_type;
/**
* vimc_pix_map_by_index - get vimc_pix_map struct by its index