On 2016-09-14 02:16:59 +0300, Laurent Pinchart wrote:
> Cropping on the WPF sink pad restricts the left and top coordinates to
> 0-255. The same result can be obtained by cropping on the RPF without
> any such restriction, this feature isn't useful. Disable it.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>

Acked-by: Niklas Söderlund <niklas.soderlund+rene...@ragnatech.se>

> ---
>  drivers/media/platform/vsp1/vsp1_rwpf.c | 37 
> +++++++++++++++++----------------
>  drivers/media/platform/vsp1/vsp1_wpf.c  | 18 +++++++---------
>  2 files changed, 26 insertions(+), 29 deletions(-)
> 
> diff --git a/drivers/media/platform/vsp1/vsp1_rwpf.c 
> b/drivers/media/platform/vsp1/vsp1_rwpf.c
> index 8cb87e96b78b..a3ace8df7f4d 100644
> --- a/drivers/media/platform/vsp1/vsp1_rwpf.c
> +++ b/drivers/media/platform/vsp1/vsp1_rwpf.c
> @@ -66,7 +66,6 @@ static int vsp1_rwpf_set_format(struct v4l2_subdev *subdev,
>       struct vsp1_rwpf *rwpf = to_rwpf(subdev);
>       struct v4l2_subdev_pad_config *config;
>       struct v4l2_mbus_framefmt *format;
> -     struct v4l2_rect *crop;
>       int ret = 0;
>  
>       mutex_lock(&rwpf->entity.lock);
> @@ -103,12 +102,16 @@ static int vsp1_rwpf_set_format(struct v4l2_subdev 
> *subdev,
>  
>       fmt->format = *format;
>  
> -     /* Update the sink crop rectangle. */
> -     crop = vsp1_rwpf_get_crop(rwpf, config);
> -     crop->left = 0;
> -     crop->top = 0;
> -     crop->width = fmt->format.width;
> -     crop->height = fmt->format.height;
> +     if (rwpf->entity.type == VSP1_ENTITY_RPF) {
> +             struct v4l2_rect *crop;
> +
> +             /* Update the sink crop rectangle. */
> +             crop = vsp1_rwpf_get_crop(rwpf, config);
> +             crop->left = 0;
> +             crop->top = 0;
> +             crop->width = fmt->format.width;
> +             crop->height = fmt->format.height;
> +     }
>  
>       /* Propagate the format to the source pad. */
>       format = vsp1_entity_get_pad_format(&rwpf->entity, config,
> @@ -129,8 +132,10 @@ static int vsp1_rwpf_get_selection(struct v4l2_subdev 
> *subdev,
>       struct v4l2_mbus_framefmt *format;
>       int ret = 0;
>  
> -     /* Cropping is implemented on the sink pad. */
> -     if (sel->pad != RWPF_PAD_SINK)
> +     /* Cropping is only supported on the RPF and is implemented on the sink
> +      * pad.
> +      */
> +     if (rwpf->entity.type == VSP1_ENTITY_WPF || sel->pad != RWPF_PAD_SINK)
>               return -EINVAL;
>  
>       mutex_lock(&rwpf->entity.lock);
> @@ -175,8 +180,10 @@ static int vsp1_rwpf_set_selection(struct v4l2_subdev 
> *subdev,
>       struct v4l2_rect *crop;
>       int ret = 0;
>  
> -     /* Cropping is implemented on the sink pad. */
> -     if (sel->pad != RWPF_PAD_SINK)
> +     /* Cropping is only supported on the RPF and is implemented on the sink
> +      * pad.
> +      */
> +     if (rwpf->entity.type == VSP1_ENTITY_WPF || sel->pad != RWPF_PAD_SINK)
>               return -EINVAL;
>  
>       if (sel->target != V4L2_SEL_TGT_CROP)
> @@ -190,9 +197,7 @@ static int vsp1_rwpf_set_selection(struct v4l2_subdev 
> *subdev,
>               goto done;
>       }
>  
> -     /* Make sure the crop rectangle is entirely contained in the image. The
> -      * WPF top and left offsets are limited to 255.
> -      */
> +     /* Make sure the crop rectangle is entirely contained in the image. */
>       format = vsp1_entity_get_pad_format(&rwpf->entity, config,
>                                           RWPF_PAD_SINK);
>  
> @@ -208,10 +213,6 @@ static int vsp1_rwpf_set_selection(struct v4l2_subdev 
> *subdev,
>  
>       sel->r.left = min_t(unsigned int, sel->r.left, format->width - 2);
>       sel->r.top = min_t(unsigned int, sel->r.top, format->height - 2);
> -     if (rwpf->entity.type == VSP1_ENTITY_WPF) {
> -             sel->r.left = min_t(unsigned int, sel->r.left, 255);
> -             sel->r.top = min_t(unsigned int, sel->r.top, 255);
> -     }
>       sel->r.width = min_t(unsigned int, sel->r.width,
>                            format->width - sel->r.left);
>       sel->r.height = min_t(unsigned int, sel->r.height,
> diff --git a/drivers/media/platform/vsp1/vsp1_wpf.c 
> b/drivers/media/platform/vsp1/vsp1_wpf.c
> index 748f5af90b7e..f3a593196282 100644
> --- a/drivers/media/platform/vsp1/vsp1_wpf.c
> +++ b/drivers/media/platform/vsp1/vsp1_wpf.c
> @@ -212,7 +212,6 @@ static void wpf_configure(struct vsp1_entity *entity,
>       struct vsp1_device *vsp1 = wpf->entity.vsp1;
>       const struct v4l2_mbus_framefmt *source_format;
>       const struct v4l2_mbus_framefmt *sink_format;
> -     const struct v4l2_rect *crop;
>       unsigned int i;
>       u32 outfmt = 0;
>       u32 srcrpf = 0;
> @@ -237,16 +236,6 @@ static void wpf_configure(struct vsp1_entity *entity,
>               return;
>       }
>  
> -     /* Cropping */
> -     crop = vsp1_rwpf_get_crop(wpf, wpf->entity.config);
> -
> -     vsp1_wpf_write(wpf, dl, VI6_WPF_HSZCLIP, VI6_WPF_SZCLIP_EN |
> -                    (crop->left << VI6_WPF_SZCLIP_OFST_SHIFT) |
> -                    (crop->width << VI6_WPF_SZCLIP_SIZE_SHIFT));
> -     vsp1_wpf_write(wpf, dl, VI6_WPF_VSZCLIP, VI6_WPF_SZCLIP_EN |
> -                    (crop->top << VI6_WPF_SZCLIP_OFST_SHIFT) |
> -                    (crop->height << VI6_WPF_SZCLIP_SIZE_SHIFT));
> -
>       /* Format */
>       sink_format = vsp1_entity_get_pad_format(&wpf->entity,
>                                                wpf->entity.config,
> @@ -255,6 +244,13 @@ static void wpf_configure(struct vsp1_entity *entity,
>                                                  wpf->entity.config,
>                                                  RWPF_PAD_SOURCE);
>  
> +     vsp1_wpf_write(wpf, dl, VI6_WPF_HSZCLIP, VI6_WPF_SZCLIP_EN |
> +                    (0 << VI6_WPF_SZCLIP_OFST_SHIFT) |
> +                    (source_format->width << VI6_WPF_SZCLIP_SIZE_SHIFT));
> +     vsp1_wpf_write(wpf, dl, VI6_WPF_VSZCLIP, VI6_WPF_SZCLIP_EN |
> +                    (0 << VI6_WPF_SZCLIP_OFST_SHIFT) |
> +                    (source_format->height << VI6_WPF_SZCLIP_SIZE_SHIFT));
> +
>       if (!pipe->lif) {
>               const struct v4l2_pix_format_mplane *format = &wpf->format;
>               const struct vsp1_format_info *fmtinfo = wpf->fmtinfo;
> -- 
> Regards,
> 
> Laurent Pinchart
> 

-- 
Regards,
Niklas Söderlund
--
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