Re: [PATCH 3/8] media: rkisp1: Remove cached format info

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On Wed, Jun 05, 2024 at 06:54:22PM +0200, Jacopo Mondi wrote:
> The struct rkisp1_params type contains a v4l2_format instance which
> is used to store the buffer format and sizes to be used in enum_fmt and
> g_fmt operations.
> 
> To prepare for supporting multiple meta output formats, to introduce
> support for extensible buffer formats, remove the cached format info
> and initialize them explicitly in the enum_fmt and g_fmt operations.
> 
> Signed-off-by: Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx>

Reviewed-by: Paul Elder <paul.elder@xxxxxxxxxxxxxxxx>

> ---
>  .../platform/rockchip/rkisp1/rkisp1-common.h  |  2 --
>  .../platform/rockchip/rkisp1/rkisp1-params.c  | 28 ++++++-------------
>  2 files changed, 9 insertions(+), 21 deletions(-)
> 
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> index 26573f6ae575..2a715f964f6e 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> @@ -372,7 +372,6 @@ struct rkisp1_params_ops {
>   * @ops:		pointer to the variant-specific operations
>   * @config_lock:	locks the buffer list 'params'
>   * @params:		queue of rkisp1_buffer
> - * @vdev_fmt:		v4l2_format of the metadata format
>   * @quantization:	the quantization configured on the isp's src pad
>   * @raw_type:		the bayer pattern on the isp video sink pad
>   */
> @@ -383,7 +382,6 @@ struct rkisp1_params {
>  
>  	spinlock_t config_lock; /* locks the buffers list 'params' */
>  	struct list_head params;
> -	struct v4l2_format vdev_fmt;
>  
>  	enum v4l2_quantization quantization;
>  	enum v4l2_ycbcr_encoding ycbcr_encoding;
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> index 173d1ea41874..1f449f29b241 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> @@ -1742,12 +1742,11 @@ static int rkisp1_params_enum_fmt_meta_out(struct file *file, void *priv,
>  					   struct v4l2_fmtdesc *f)
>  {
>  	struct video_device *video = video_devdata(file);
> -	struct rkisp1_params *params = video_get_drvdata(video);
>  
>  	if (f->index > 0 || f->type != video->queue->type)
>  		return -EINVAL;
>  
> -	f->pixelformat = params->vdev_fmt.fmt.meta.dataformat;
> +	f->pixelformat = V4L2_META_FMT_RK_ISP1_PARAMS;
>  
>  	return 0;
>  }
> @@ -1756,15 +1755,14 @@ static int rkisp1_params_g_fmt_meta_out(struct file *file, void *fh,
>  					struct v4l2_format *f)
>  {
>  	struct video_device *video = video_devdata(file);
> -	struct rkisp1_params *params = video_get_drvdata(video);
>  	struct v4l2_meta_format *meta = &f->fmt.meta;
>  
>  	if (f->type != video->queue->type)
>  		return -EINVAL;
>  
>  	memset(meta, 0, sizeof(*meta));
> -	meta->dataformat = params->vdev_fmt.fmt.meta.dataformat;
> -	meta->buffersize = params->vdev_fmt.fmt.meta.buffersize;
> +	meta->dataformat = V4L2_META_FMT_RK_ISP1_PARAMS;
> +	meta->buffersize = sizeof(struct rkisp1_params_cfg);
>  
>  	return 0;
>  }
> @@ -1897,19 +1895,6 @@ static int rkisp1_params_init_vb2_queue(struct vb2_queue *q,
>  	return vb2_queue_init(q);
>  }
>  
> -static void rkisp1_init_params(struct rkisp1_params *params)
> -{
> -	params->vdev_fmt.fmt.meta.dataformat =
> -		V4L2_META_FMT_RK_ISP1_PARAMS;
> -	params->vdev_fmt.fmt.meta.buffersize =
> -		sizeof(struct rkisp1_params_cfg);
> -
> -	if (params->rkisp1->info->isp_ver == RKISP1_V12)
> -		params->ops = &rkisp1_v12_params_ops;
> -	else
> -		params->ops = &rkisp1_v10_params_ops;
> -}
> -
>  int rkisp1_params_register(struct rkisp1_device *rkisp1)
>  {
>  	struct rkisp1_params *params = &rkisp1->params;
> @@ -1938,7 +1923,12 @@ int rkisp1_params_register(struct rkisp1_device *rkisp1)
>  	vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_META_OUTPUT;
>  	vdev->vfl_dir = VFL_DIR_TX;
>  	rkisp1_params_init_vb2_queue(vdev->queue, params);
> -	rkisp1_init_params(params);
> +
> +	if (params->rkisp1->info->isp_ver == RKISP1_V12)
> +		params->ops = &rkisp1_v12_params_ops;
> +	else
> +		params->ops = &rkisp1_v10_params_ops;
> +
>  	video_set_drvdata(vdev, params);
>  
>  	node->pad.flags = MEDIA_PAD_FL_SOURCE;
> -- 
> 2.45.1
> 




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