[PATCH v4 3/7] media: rkisp1: Add struct rkisp1_params_buffer

[Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx>]

Create the 'struct rkisp1_params_buffer' type that wraps a
vb2_v4l2_buffer to prepare to hold a copy of the parameters buffer that
will be used to cache the user-provided configuration buffer in the
following patches.

Replace usage of 'struct rkisp1_buffer' with 'struct
rkisp1_params_buffer' in rkisp1-params.c to prepare for that.

Signed-off-by: Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx>
Reviewed-by: Daniel Scally <dan.scally@xxxxxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Reviewed-by: Paul Elder <paul.elder@xxxxxxxxxxxxxxxx>
---
 .../platform/rockchip/rkisp1/rkisp1-common.h  | 14 ++++++++++++-
 .../platform/rockchip/rkisp1/rkisp1-params.c  | 21 ++++++++++---------
 2 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index 26573f6ae575..a615bbb0255e 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -232,7 +232,7 @@ struct rkisp1_vdev_node {
 
 /*
  * struct rkisp1_buffer - A container for the vb2 buffers used by the video devices:
- *			  params, stats, mainpath, selfpath
+ *			  stats, mainpath, selfpath
  *
  * @vb:		vb2 buffer
  * @queue:	entry of the buffer in the queue
@@ -244,6 +244,18 @@ struct rkisp1_buffer {
 	dma_addr_t buff_addr[VIDEO_MAX_PLANES];
 };
 
+/*
+ * struct rkisp1_params_buffer - A container for the vb2 buffers used by the
+ *				 params video device
+ *
+ * @vb:		vb2 buffer
+ * @queue:	entry of the buffer in the queue
+ */
+struct rkisp1_params_buffer {
+	struct vb2_v4l2_buffer vb;
+	struct list_head queue;
+};
+
 /*
  * struct rkisp1_dummy_buffer - A buffer to write the next frame to in case
  *				there are no vb2 buffers available.
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
index 173d1ea41874..2844e55bc4f2 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
@@ -1502,20 +1502,21 @@ static void rkisp1_isp_isr_meas_config(struct rkisp1_params *params,
 }
 
 static bool rkisp1_params_get_buffer(struct rkisp1_params *params,
-				     struct rkisp1_buffer **buf,
+				     struct rkisp1_params_buffer **buf,
 				     struct rkisp1_params_cfg **cfg)
 {
 	if (list_empty(&params->params))
 		return false;
 
-	*buf = list_first_entry(&params->params, struct rkisp1_buffer, queue);
+	*buf = list_first_entry(&params->params, struct rkisp1_params_buffer,
+				queue);
 	*cfg = vb2_plane_vaddr(&(*buf)->vb.vb2_buf, 0);
 
 	return true;
 }
 
 static void rkisp1_params_complete_buffer(struct rkisp1_params *params,
-					  struct rkisp1_buffer *buf,
+					  struct rkisp1_params_buffer *buf,
 					  unsigned int frame_sequence)
 {
 	list_del(&buf->queue);
@@ -1528,7 +1529,7 @@ void rkisp1_params_isr(struct rkisp1_device *rkisp1)
 {
 	struct rkisp1_params *params = &rkisp1->params;
 	struct rkisp1_params_cfg *new_params;
-	struct rkisp1_buffer *cur_buf;
+	struct rkisp1_params_buffer *cur_buf;
 
 	spin_lock(&params->config_lock);
 
@@ -1604,7 +1605,7 @@ void rkisp1_params_pre_configure(struct rkisp1_params *params,
 {
 	struct rkisp1_cif_isp_hst_config hst = rkisp1_hst_params_default_config;
 	struct rkisp1_params_cfg *new_params;
-	struct rkisp1_buffer *cur_buf;
+	struct rkisp1_params_buffer *cur_buf;
 
 	params->quantization = quantization;
 	params->ycbcr_encoding = ycbcr_encoding;
@@ -1650,7 +1651,7 @@ void rkisp1_params_pre_configure(struct rkisp1_params *params,
 void rkisp1_params_post_configure(struct rkisp1_params *params)
 {
 	struct rkisp1_params_cfg *new_params;
-	struct rkisp1_buffer *cur_buf;
+	struct rkisp1_params_buffer *cur_buf;
 
 	spin_lock_irq(&params->config_lock);
 
@@ -1821,8 +1822,8 @@ static int rkisp1_params_vb2_queue_setup(struct vb2_queue *vq,
 static void rkisp1_params_vb2_buf_queue(struct vb2_buffer *vb)
 {
 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
-	struct rkisp1_buffer *params_buf =
-		container_of(vbuf, struct rkisp1_buffer, vb);
+	struct rkisp1_params_buffer *params_buf =
+		container_of(vbuf, struct rkisp1_params_buffer, vb);
 	struct vb2_queue *vq = vb->vb2_queue;
 	struct rkisp1_params *params = vq->drv_priv;
 
@@ -1844,7 +1845,7 @@ static int rkisp1_params_vb2_buf_prepare(struct vb2_buffer *vb)
 static void rkisp1_params_vb2_stop_streaming(struct vb2_queue *vq)
 {
 	struct rkisp1_params *params = vq->drv_priv;
-	struct rkisp1_buffer *buf;
+	struct rkisp1_params_buffer *buf;
 	LIST_HEAD(tmp_list);
 
 	/*
@@ -1890,7 +1891,7 @@ static int rkisp1_params_init_vb2_queue(struct vb2_queue *q,
 	q->drv_priv = params;
 	q->ops = &rkisp1_params_vb2_ops;
 	q->mem_ops = &vb2_vmalloc_memops;
-	q->buf_struct_size = sizeof(struct rkisp1_buffer);
+	q->buf_struct_size = sizeof(struct rkisp1_params_buffer);
 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 	q->lock = &node->vlock;
 
-- 
2.45.2