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-rw-r--r--Documentation/video4linux/v4l2-controls.txt1
-rw-r--r--drivers/media/v4l2-core/v4l2-ctrls.c16
-rw-r--r--include/media/v4l2-ctrls.h12
3 files changed, 0 insertions, 29 deletions
diff --git a/Documentation/video4linux/v4l2-controls.txt b/Documentation/video4linux/v4l2-controls.txt
index 5517db602f37..5e759cab4538 100644
--- a/Documentation/video4linux/v4l2-controls.txt
+++ b/Documentation/video4linux/v4l2-controls.txt
@@ -647,7 +647,6 @@ Or you can add specific controls to a handler:
volume = v4l2_ctrl_new_std(&video_ctrl_handler, &ops, V4L2_CID_AUDIO_VOLUME, ...);
v4l2_ctrl_new_std(&video_ctrl_handler, &ops, V4L2_CID_BRIGHTNESS, ...);
v4l2_ctrl_new_std(&video_ctrl_handler, &ops, V4L2_CID_CONTRAST, ...);
- v4l2_ctrl_add_ctrl(&radio_ctrl_handler, volume);
What you should not do is make two identical controls for two handlers.
For example:
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index bed04b1fdd0a..130e5badd599 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -2227,22 +2227,6 @@ struct v4l2_ctrl *v4l2_ctrl_new_int_menu(struct v4l2_ctrl_handler *hdl,
}
EXPORT_SYMBOL(v4l2_ctrl_new_int_menu);
-/* Add a control from another handler to this handler */
-struct v4l2_ctrl *v4l2_ctrl_add_ctrl(struct v4l2_ctrl_handler *hdl,
- struct v4l2_ctrl *ctrl)
-{
- if (hdl == NULL || hdl->error)
- return NULL;
- if (ctrl == NULL) {
- handler_set_err(hdl, -EINVAL);
- return NULL;
- }
- if (ctrl->handler == hdl)
- return ctrl;
- return handler_new_ref(hdl, ctrl) ? NULL : ctrl;
-}
-EXPORT_SYMBOL(v4l2_ctrl_add_ctrl);
-
/* Add the controls from another handler to our own. */
int v4l2_ctrl_add_handler(struct v4l2_ctrl_handler *hdl,
struct v4l2_ctrl_handler *add,
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index da6fe9802fee..0bc9b35b8f3e 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -535,18 +535,6 @@ struct v4l2_ctrl *v4l2_ctrl_new_int_menu(struct v4l2_ctrl_handler *hdl,
u32 id, u8 max, u8 def, const s64 *qmenu_int);
/**
- * v4l2_ctrl_add_ctrl() - Add a control from another handler to this handler.
- * @hdl: The control handler.
- * @ctrl: The control to add.
- *
- * It will return NULL if it was unable to add the control reference.
- * If the control already belonged to the handler, then it will do
- * nothing and just return @ctrl.
- */
-struct v4l2_ctrl *v4l2_ctrl_add_ctrl(struct v4l2_ctrl_handler *hdl,
- struct v4l2_ctrl *ctrl);
-
-/**
* v4l2_ctrl_add_handler() - Add all controls from handler @add to
* handler @hdl.
* @hdl: The control handler.