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drm/sun4i: Add backend pointer to sun4i_layer

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sun4i_layer only controls the backend hardware block of the display
pipeline. Instead of getting a pointer to the underlying backend
through the drm_device structure, leave one in itself.

Also drop the drm_device pointer, since it is no longer needed.

The next step forward would be to pass the pointer in through
sun4i_layers_init as a parameter. This would make it easier to support
multiple display pipelines layer on.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Chen-Yu Tsai 2017-02-23 16:05:42 +08:00 committed by Maxime Ripard
parent b9c8506cb8
commit ace6c095ba
2 changed files with 4 additions and 5 deletions
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8
drivers/gpu/drm/sun4i/sun4i_layer.c
View File

@ -36,8 +36,7 @@ static void sun4i_backend_layer_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct sun4i_layer *layer = plane_to_sun4i_layer(plane);
struct sun4i_drv *drv = layer->drv;
struct sun4i_backend *backend = drv->backend;
struct sun4i_backend *backend = layer->backend;
sun4i_backend_layer_enable(backend, layer->id, false);
}
@ -46,8 +45,7 @@ static void sun4i_backend_layer_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct sun4i_layer *layer = plane_to_sun4i_layer(plane);
struct sun4i_drv *drv = layer->drv;
struct sun4i_backend *backend = drv->backend;
struct sun4i_backend *backend = layer->backend;
sun4i_backend_update_layer_coord(backend, layer->id, plane);
sun4i_backend_update_layer_formats(backend, layer->id, plane);
@ -126,7 +124,7 @@ static struct sun4i_layer *sun4i_layer_init_one(struct drm_device *drm,
drm_plane_helper_add(&layer->plane,
&sun4i_backend_layer_helper_funcs);
layer->drv = drv;
layer->backend = drv->backend;
return layer;
}

1
drivers/gpu/drm/sun4i/sun4i_layer.h
View File

@ -16,6 +16,7 @@
struct sun4i_layer {
struct drm_plane plane;
struct sun4i_drv *drv;
struct sun4i_backend *backend;
int id;
};