linux-kernel - [PATCH v4 1/6] media: v4l2_ctrl: Add p_def to v4l2_ctrl

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Date:   Mon,  4 Nov 2019 14:09:18 +0100
From:   Ricardo Ribalda Delgado <ribalda@...nel.org>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Ricardo Ribalda Delgado <ribalda@...nel.org>
Subject: [PATCH v4 1/6] media: v4l2_ctrl: Add p_def to v4l2_ctrl_config

This allows setting the default value on compound controls created via
v4l2_ctrl_new_custom.

Signed-off-by: Ricardo Ribalda Delgado <ribalda@...nel.org>
---
 drivers/media/v4l2-core/v4l2-ctrls.c | 2 +-
 include/media/v4l2-ctrls.h           | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index b4caf2d4d076..73d99c3561ce 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -2690,7 +2690,7 @@ struct v4l2_ctrl *v4l2_ctrl_new_custom(struct v4l2_ctrl_handler *hdl,
 			type, min, max,
 			is_menu ? cfg->menu_skip_mask : step, def,
 			cfg->dims, cfg->elem_size,
-			flags, qmenu, qmenu_int, ptr_null, priv);
+			flags, qmenu, qmenu_int, cfg->p_def, priv);
 	if (ctrl)
 		ctrl->is_private = cfg->is_private;
 	return ctrl;
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index e719d56fc024..78a97b10c89e 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -382,6 +382,7 @@ struct v4l2_ctrl_handler {
  * @max:	The control's maximum value.
  * @step:	The control's step value for non-menu controls.
  * @def:	The control's default value.
+ * @p_def:	The control's default value for compound controls.
  * @dims:	The size of each dimension.
  * @elem_size:	The size in bytes of the control.
  * @flags:	The control's flags.
@@ -410,6 +411,7 @@ struct v4l2_ctrl_config {
 	s64 max;
 	u64 step;
 	s64 def;
+	union v4l2_ctrl_ptr p_def;
 	u32 dims[V4L2_CTRL_MAX_DIMS];
 	u32 elem_size;
 	u32 flags;
-- 
2.24.0.rc1