[PATCH 28/55] media: rkisp1: isp: Add container_of wrapper to cast subdev to rkisp1_isp

[Paul Elder]

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

Replace manual container_of() calls with a static inline wrapper to
increase readability.

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
 .../media/platform/rockchip/rkisp1/rkisp1-isp.c   | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
index 4f12fc0b7694..812fb2ea5323 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
@@ -370,6 +370,11 @@ static void rkisp1_isp_start(struct rkisp1_device *rkisp1)
  * Subdev pad operations
  */
 
+static inline struct rkisp1_isp *to_rkisp1_isp(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct rkisp1_isp, sd);
+}
+
 static int rkisp1_isp_enum_mbus_code(struct v4l2_subdev *sd,
 				     struct v4l2_subdev_state *sd_state,
 				     struct v4l2_subdev_mbus_code_enum *code)
@@ -625,7 +630,7 @@ static int rkisp1_isp_get_fmt(struct v4l2_subdev *sd,
 			      struct v4l2_subdev_state *sd_state,
 			      struct v4l2_subdev_format *fmt)
 {
-	struct rkisp1_isp *isp = container_of(sd, struct rkisp1_isp, sd);
+	struct rkisp1_isp *isp = to_rkisp1_isp(sd);
 
 	mutex_lock(&isp->ops_lock);
 	fmt->format = *rkisp1_isp_get_pad_fmt(isp, sd_state, fmt->pad,
@@ -638,7 +643,7 @@ static int rkisp1_isp_set_fmt(struct v4l2_subdev *sd,
 			      struct v4l2_subdev_state *sd_state,
 			      struct v4l2_subdev_format *fmt)
 {
-	struct rkisp1_isp *isp = container_of(sd, struct rkisp1_isp, sd);
+	struct rkisp1_isp *isp = to_rkisp1_isp(sd);
 
 	mutex_lock(&isp->ops_lock);
 	if (fmt->pad == RKISP1_ISP_PAD_SINK_VIDEO)
@@ -659,7 +664,7 @@ static int rkisp1_isp_get_selection(struct v4l2_subdev *sd,
 				    struct v4l2_subdev_state *sd_state,
 				    struct v4l2_subdev_selection *sel)
 {
-	struct rkisp1_isp *isp = container_of(sd, struct rkisp1_isp, sd);
+	struct rkisp1_isp *isp = to_rkisp1_isp(sd);
 	int ret = 0;
 
 	if (sel->pad != RKISP1_ISP_PAD_SOURCE_VIDEO &&
@@ -701,7 +706,7 @@ static int rkisp1_isp_set_selection(struct v4l2_subdev *sd,
 {
 	struct rkisp1_device *rkisp1 =
 		container_of(sd->v4l2_dev, struct rkisp1_device, v4l2_dev);
-	struct rkisp1_isp *isp = container_of(sd, struct rkisp1_isp, sd);
+	struct rkisp1_isp *isp = to_rkisp1_isp(sd);
 	int ret = 0;
 
 	if (sel->target != V4L2_SEL_TGT_CROP)
@@ -748,7 +753,7 @@ 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 = &rkisp1->isp;
+	struct rkisp1_isp *isp = to_rkisp1_isp(sd);
 	struct rkisp1_sensor_async *asd;
 	int ret;
 
-- 
2.30.2