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| author | Hans de Goede <hdegoede@redhat.com> | 2023-01-27 21:37:25 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-02-03 10:22:34 +0100 |
| commit | b6e10ff6c23deb7f01d342875f7a69bae067c3c8 (patch) | |
| tree | e667cbb632bf0562f14b9d0ef795223749bac20e /include/media | |
| parent | 39f09320500c74a9777fc274d15acd3f0bac41ae (diff) | |
| download | lwn-b6e10ff6c23deb7f01d342875f7a69bae067c3c8.tar.gz lwn-b6e10ff6c23deb7f01d342875f7a69bae067c3c8.zip | |
media: v4l2-core: Make the v4l2-core code enable/disable the privacy LED if present
Make v4l2_async_register_subdev_sensor() try to get a privacy LED
associated with the sensor and extend the call_s_stream() wrapper to
enable/disable the privacy LED if found.
This makes the core handle privacy LED control, rather then having to
duplicate this code in all the sensor drivers.
Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20230127203729.10205-2-hdegoede@redhat.com
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/v4l2-subdev.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index b15fa9930f30..f3fe9b6e26d4 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -38,6 +38,7 @@ struct v4l2_subdev; struct v4l2_subdev_fh; struct tuner_setup; struct v4l2_mbus_frame_desc; +struct led_classdev; /** * struct v4l2_decode_vbi_line - used to decode_vbi_line @@ -941,6 +942,7 @@ struct v4l2_subdev_platform_data { * @state_lock: A pointer to a lock used for all the subdev's states, set by the * driver. This is optional. If NULL, each state instance will get * a lock of its own. + * @privacy_led: Optional pointer to a LED classdev for the privacy LED for sensors. * @active_state: Active state for the subdev (NULL for subdevs tracking the * state internally). Initialized by calling * v4l2_subdev_init_finalize(). @@ -982,6 +984,8 @@ struct v4l2_subdev { * appropriate functions. */ + struct led_classdev *privacy_led; + /* * TODO: active_state should most likely be changed from a pointer to an * embedded field. For the time being it's kept as a pointer to more |