[PATCH v5 4/4] drm: rcar: use generic code for managing zpos plane property

[Laurent Pinchart]

Hi Benjamin,

Thank you for the patch.

The git://linuxtv.org/media_tree.git vsp1 branch will be merged in v4.8 and 
will conflict with this series. If you target v4.8 you should rebase the 
patches on top of that branch.

For your convenience I've pushed a branch in which I've resolved the conflicts 
for v4 of your patches series to

git://linuxtv.org/pinchartl/media.git drm/du/zorder

On Thursday 07 Jul 2016 15:01:24 Benjamin Gaignard wrote:
> version 4:
> fix null pointer issue while setting zpos in plane reset function
> 
> This patch replaces zpos property handling custom code in rcar DRM
> driver with calls to generic DRM code.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard at linaro.org>
> 
> Cc: Daniel Vetter <daniel at ffwll.ch>
> Cc: Ville Syrjala <ville.syrjala at linux.intel.com>
> Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> Cc: Marek Szyprowski <m.szyprowski at samsung.com>
> ---
>  drivers/gpu/drm/rcar-du/rcar_du_crtc.c  | 2 +-
>  drivers/gpu/drm/rcar-du/rcar_du_drv.h   | 1 -
>  drivers/gpu/drm/rcar-du/rcar_du_kms.c   | 5 -----
>  drivers/gpu/drm/rcar-du/rcar_du_plane.c | 9 ++-------
>  drivers/gpu/drm/rcar-du/rcar_du_plane.h | 2 --
>  5 files changed, 3 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
> b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 0d8bdda..28d2cb6 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
> @@ -196,7 +196,7 @@ void rcar_du_crtc_route_output(struct drm_crtc *crtc,
> 
>  static unsigned int plane_zpos(struct rcar_du_plane *plane)
>  {
> -	return to_rcar_plane_state(plane->plane.state)->zpos;
> +	return plane->plane.state->normalized_zpos;
>  }
> 
>  static const struct rcar_du_format_info *
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h
> b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index ed35467..c843c31 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
> @@ -92,7 +92,6 @@ struct rcar_du_device {
>  	struct {
>  		struct drm_property *alpha;
>  		struct drm_property *colorkey;
> -		struct drm_property *zpos;
>  	} props;
> 
>  	unsigned int dpad0_source;
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
> b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index 6bb032d..f03eb55 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
> @@ -527,11 +527,6 @@ static int rcar_du_properties_init(struct
> rcar_du_device *rcdu) if (rcdu->props.colorkey == NULL)
>  		return -ENOMEM;
> 
> -	rcdu->props.zpos =
> -		drm_property_create_range(rcdu->ddev, 0, "zpos", 1, 7);
> -	if (rcdu->props.zpos == NULL)
> -		return -ENOMEM;
> -
>  	return 0;
>  }
> 
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
> b/drivers/gpu/drm/rcar-du/rcar_du_plane.c index bfe31ca..dc9bb96 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
> @@ -652,7 +652,7 @@ static void rcar_du_plane_reset(struct drm_plane *plane)
> state->source = RCAR_DU_PLANE_MEMORY;
>  	state->alpha = 255;
>  	state->colorkey = RCAR_DU_COLORKEY_NONE;
> -	state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : 1;
> +	state->state.zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : 1;
> 
>  	plane->state = &state->state;
>  	plane->state->plane = plane;
> @@ -670,8 +670,6 @@ static int rcar_du_plane_atomic_set_property(struct
> drm_plane *plane, rstate->alpha = val;
>  	else if (property == rcdu->props.colorkey)
>  		rstate->colorkey = val;
> -	else if (property == rcdu->props.zpos)
> -		rstate->zpos = val;
>  	else
>  		return -EINVAL;
> 
> @@ -690,8 +688,6 @@ static int rcar_du_plane_atomic_get_property(struct
> drm_plane *plane, *val = rstate->alpha;
>  	else if (property == rcdu->props.colorkey)
>  		*val = rstate->colorkey;
> -	else if (property == rcdu->props.zpos)
> -		*val = rstate->zpos;
>  	else
>  		return -EINVAL;
> 
> @@ -763,8 +759,7 @@ int rcar_du_planes_init(struct rcar_du_group *rgrp)
>  		drm_object_attach_property(&plane->plane.base,
>  					   rcdu->props.colorkey,
>  					   RCAR_DU_COLORKEY_NONE);
> -		drm_object_attach_property(&plane->plane.base,
> -					   rcdu->props.zpos, 1);
> +		drm_plane_create_zpos_property(&plane->plane, 1, 7);
>  	}
> 
>  	return 0;
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.h
> b/drivers/gpu/drm/rcar-du/rcar_du_plane.h index b18b7b2..8b91dd3 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.h
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.h
> @@ -51,7 +51,6 @@ static inline struct rcar_du_plane *to_rcar_plane(struct
> drm_plane *plane) * @hwindex: 0-based hardware plane index, -1 means unused
>   * @alpha: value of the plane alpha property
>   * @colorkey: value of the plane colorkey property
> - * @zpos: value of the plane zpos property
>   */
>  struct rcar_du_plane_state {
>  	struct drm_plane_state state;
> @@ -62,7 +61,6 @@ struct rcar_du_plane_state {
> 
>  	unsigned int alpha;
>  	unsigned int colorkey;
> -	unsigned int zpos;
>  };
> 
>  static inline struct rcar_du_plane_state *

-- 
Regards,

Laurent Pinchart