[PATCH 3/7] drm: Add support for optional per-plane rotation property

[Joonas Lahtinen]

On ke, 2016-07-20 at 16:18 +0300, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Not all planes on the ssytem may support the same rotations/reflections,

s/ssytem/system/

> so make it possible to create a separate property for each plane.
> This way userspace gets told exactly which rotations/reflections are
> possible for each plane.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/drm_atomic.c    | 6 ++++--
>  drivers/gpu/drm/drm_fb_helper.c | 6 +++++-
>  include/drm/drm_crtc.h          | 2 ++
>  3 files changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> index 5f0002897862..38b023da6f09 100644
> --- a/drivers/gpu/drm/drm_atomic.c
> +++ b/drivers/gpu/drm/drm_atomic.c
> @@ -710,7 +710,8 @@ int drm_atomic_plane_set_property(struct drm_plane *plane,
>  		state->src_w = val;
>  	} else if (property == config->prop_src_h) {
>  		state->src_h = val;
> -	} else if (property == config->rotation_property) {
> +	} else if (property == config->rotation_property ||
> +		   property == plane->rotation_property) {
>  		if (!is_power_of_2(val & DRM_ROTATE_MASK))
>  			return -EINVAL;
>  		state->rotation = val;
> @@ -768,7 +769,8 @@ drm_atomic_plane_get_property(struct drm_plane *plane,
>  		*val = state->src_w;
>  	} else if (property == config->prop_src_h) {
>  		*val = state->src_h;
> -	} else if (property == config->rotation_property) {
> +	} else if (property == config->rotation_property ||
> +		   property == plane->rotation_property) {
>  		*val = state->rotation;
>  	} else if (plane->funcs->atomic_get_property) {
>  		return plane->funcs->atomic_get_property(plane, state, property, val);
> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> index ce54e985d91b..ce536c0553e5 100644
> --- a/drivers/gpu/drm/drm_fb_helper.c
> +++ b/drivers/gpu/drm/drm_fb_helper.c
> @@ -392,7 +392,11 @@ static int restore_fbdev_mode(struct drm_fb_helper *fb_helper)
>  		if (plane->type != DRM_PLANE_TYPE_PRIMARY)
>  			drm_plane_force_disable(plane);
>  
> -		if (dev->mode_config.rotation_property) {
> +		if (plane->rotation_property) {
> +			drm_mode_plane_set_obj_prop(plane,
> +						    plane->rotation_property,
> +						    BIT(DRM_ROTATE_0));
> +		} else if (dev->mode_config.rotation_property) {

Why not clear the mode_config.rotation_property too, still?

Regards, Joonas

>  			drm_mode_plane_set_obj_prop(plane,
>  						    dev->mode_config.rotation_property,
>  						    BIT(DRM_ROTATE_0));
> diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
> index b7ac7dcf52db..8d65e85d6d91 100644
> --- a/include/drm/drm_crtc.h
> +++ b/include/drm/drm_crtc.h
> @@ -1737,6 +1737,8 @@ struct drm_plane {
>  	const struct drm_plane_helper_funcs *helper_private;
>  
>  	struct drm_plane_state *state;
> +
> +	struct drm_property *rotation_property;
>  };
>  
>  /**
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation