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authorIcenowy Zheng <icenowy@aosc.io>2017-05-17 22:47:17 +0800
committerMaxime Ripard <maxime.ripard@free-electrons.com>2017-06-01 09:47:23 +0200
commit87969338436710638076d8083dda8b0de703f4a5 (patch)
tree9157bb21d79e5a8297a3964f84d41c8b5a9bc82e /drivers/gpu/drm/sun4i/sun4i_layer.h
parent7921e1477a5327ff22cc38a0ec74ace5d26dbba9 (diff)
downloadop-kernel-dev-87969338436710638076d8083dda8b0de703f4a5.zip
op-kernel-dev-87969338436710638076d8083dda8b0de703f4a5.tar.gz
drm/sun4i: abstract a engine type
As we are going to add support for the Allwinner DE2 engine in sun4i-drm driver, we will finally have two types of display engines -- the DE1 backend and the DE2 mixer. They both do some display blending and feed graphics data to TCON, and is part of the "Display Engine" called by Allwinner, so I choose to call them both "engine" here. Abstract the engine type to a new struct with an ops struct, which contains functions that should be called outside the engine-specified code (in TCON, CRTC or TV Encoder code). In order to preserve bisectability, we also switch the backend and layer code in its own module. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_layer.h')
-rw-r--r--drivers/gpu/drm/sun4i/sun4i_layer.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.h b/drivers/gpu/drm/sun4i/sun4i_layer.h
index 5ea5c99..4e84f43 100644
--- a/drivers/gpu/drm/sun4i/sun4i_layer.h
+++ b/drivers/gpu/drm/sun4i/sun4i_layer.h
@@ -13,6 +13,8 @@
#ifndef _SUN4I_LAYER_H_
#define _SUN4I_LAYER_H_
+struct sunxi_engine;
+
struct sun4i_layer {
struct drm_plane plane;
struct sun4i_drv *drv;
@@ -27,6 +29,6 @@ plane_to_sun4i_layer(struct drm_plane *plane)
}
struct drm_plane **sun4i_layers_init(struct drm_device *drm,
- struct sun4i_crtc *crtc);
+ struct sunxi_engine *engine);
#endif /* _SUN4I_LAYER_H_ */
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