[PATCH 29/55] media: rkisp1: isp: Add rkisp1_device backpointer to rkisp1_isp

[Paul Elder]

From: Laurent Pinchart <laurent.pinchart at ideasonboard.com>

The rkisp1_isp structure documentation mentions a backpointer field to
rkisp1_device, but the field is missing. Add it, and use it to replace
more complicated constructs using container_of() on the v4l2_device.

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
 .../media/platform/rockchip/rkisp1/rkisp1-common.h    |  1 +
 drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c   | 11 +++++------
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index 7a6f55a31bb0..3c55e922346e 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -162,6 +162,7 @@ struct rkisp1_csi {
  */
 struct rkisp1_isp {
 	struct v4l2_subdev sd;
+	struct rkisp1_device *rkisp1;
 	struct media_pad pads[RKISP1_ISP_PAD_MAX];
 	struct v4l2_subdev_pad_config pad_cfg[RKISP1_ISP_PAD_MAX];
 	const struct rkisp1_mbus_info *sink_fmt;
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
index 812fb2ea5323..f8ab1d9cc8cd 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
@@ -704,15 +704,13 @@ static int rkisp1_isp_set_selection(struct v4l2_subdev *sd,
 				    struct v4l2_subdev_state *sd_state,
 				    struct v4l2_subdev_selection *sel)
 {
-	struct rkisp1_device *rkisp1 =
-		container_of(sd->v4l2_dev, struct rkisp1_device, v4l2_dev);
 	struct rkisp1_isp *isp = to_rkisp1_isp(sd);
 	int ret = 0;
 
 	if (sel->target != V4L2_SEL_TGT_CROP)
 		return -EINVAL;
 
-	dev_dbg(rkisp1->dev, "%s: pad: %d sel(%d,%d)/%dx%d\n", __func__,
+	dev_dbg(isp->rkisp1->dev, "%s: pad: %d sel(%d,%d)/%dx%d\n", __func__,
 		sel->pad, sel->r.left, sel->r.top, sel->r.width, sel->r.height);
 	mutex_lock(&isp->ops_lock);
 	if (sel->pad == RKISP1_ISP_PAD_SINK_VIDEO)
@@ -751,9 +749,8 @@ static const struct v4l2_subdev_pad_ops rkisp1_isp_pad_ops = {
 
 static int rkisp1_isp_s_stream(struct v4l2_subdev *sd, int enable)
 {
-	struct rkisp1_device *rkisp1 =
-		container_of(sd->v4l2_dev, struct rkisp1_device, v4l2_dev);
 	struct rkisp1_isp *isp = to_rkisp1_isp(sd);
+	struct rkisp1_device *rkisp1 = isp->rkisp1;
 	struct rkisp1_sensor_async *asd;
 	int ret;
 
@@ -840,12 +837,14 @@ int rkisp1_isp_register(struct rkisp1_device *rkisp1)
 {
 	struct v4l2_subdev_state state = {
 		.pads = rkisp1->isp.pad_cfg
-		};
+	};
 	struct rkisp1_isp *isp = &rkisp1->isp;
 	struct media_pad *pads = isp->pads;
 	struct v4l2_subdev *sd = &isp->sd;
 	int ret;
 
+	isp->rkisp1 = rkisp1;
+
 	v4l2_subdev_init(sd, &rkisp1_isp_ops);
 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
 	sd->entity.ops = &rkisp1_isp_media_ops;
-- 
2.30.2