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media: subdev: Add privacy led helpers

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Add helper functions to enable and disable the privacy led. This moves
the #if from the call site to the privacy led functions, and makes
adding privacy led support to v4l2_subdev_enable/disable_streams()
cleaner.

Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Tomi Valkeinen
2024-04-24 18:39:04 +03:00
committed by Hans Verkuil
parent 3a5c59ad92
commit 4e628f95e7
1 changed files with 21 additions and 9 deletions
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30
drivers/media/v4l2-core/v4l2-subdev.c
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@@ -148,6 +148,23 @@ static int subdev_close(struct file *file)
}
#endif /* CONFIG_VIDEO_V4L2_SUBDEV_API */
static void v4l2_subdev_enable_privacy_led(struct v4l2_subdev *sd)
{
#if IS_REACHABLE(CONFIG_LEDS_CLASS)
if (!IS_ERR_OR_NULL(sd->privacy_led))
led_set_brightness(sd->privacy_led,
sd->privacy_led->max_brightness);
#endif
}
static void v4l2_subdev_disable_privacy_led(struct v4l2_subdev *sd)
{
#if IS_REACHABLE(CONFIG_LEDS_CLASS)
if (!IS_ERR_OR_NULL(sd->privacy_led))
led_set_brightness(sd->privacy_led, 0);
#endif
}
static inline int check_which(u32 which)
{
if (which != V4L2_SUBDEV_FORMAT_TRY &&
@@ -452,15 +469,10 @@ static int call_s_stream(struct v4l2_subdev *sd, int enable)
if (!ret) {
sd->enabled_streams = enable ? BIT(0) : 0;
#if IS_REACHABLE(CONFIG_LEDS_CLASS)
if (!IS_ERR_OR_NULL(sd->privacy_led)) {
if (enable)
led_set_brightness(sd->privacy_led,
sd->privacy_led->max_brightness);
else
led_set_brightness(sd->privacy_led, 0);
}
#endif
if (enable)
v4l2_subdev_enable_privacy_led(sd);
else
v4l2_subdev_disable_privacy_led(sd);
}
return ret;