diff options
author | Icenowy Zheng <icenowy@aosc.io> | 2017-05-17 17:47:17 +0300 |
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committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2017-06-01 10:47:23 +0300 |
commit | 87969338436710638076d8083dda8b0de703f4a5 (patch) | |
tree | 9157bb21d79e5a8297a3964f84d41c8b5a9bc82e /drivers/gpu/drm/sun4i/sun4i_backend.h | |
parent | 7921e1477a5327ff22cc38a0ec74ace5d26dbba9 (diff) | |
download | linux-87969338436710638076d8083dda8b0de703f4a5.tar.xz |
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_backend.h')
-rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_backend.h | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.h b/drivers/gpu/drm/sun4i/sun4i_backend.h index 6327a2985fe6..21945af67a9d 100644 --- a/drivers/gpu/drm/sun4i/sun4i_backend.h +++ b/drivers/gpu/drm/sun4i/sun4i_backend.h @@ -19,6 +19,8 @@ #include <linux/regmap.h> #include <linux/reset.h> +#include "sunxi_engine.h" + #define SUN4I_BACKEND_MODCTL_REG 0x800 #define SUN4I_BACKEND_MODCTL_LINE_SEL BIT(29) #define SUN4I_BACKEND_MODCTL_ITLMOD_EN BIT(28) @@ -141,8 +143,7 @@ #define SUN4I_BACKEND_PIPE_OFF(p) (0x5000 + (0x400 * (p))) struct sun4i_backend { - struct device_node *node; - struct regmap *regs; + struct sunxi_engine engine; struct reset_control *reset; @@ -152,17 +153,13 @@ struct sun4i_backend { struct clk *sat_clk; struct reset_control *sat_reset; - - int id; - - /* Backend list management */ - struct list_head list; }; -void sun4i_backend_apply_color_correction(struct sun4i_backend *backend); -void sun4i_backend_disable_color_correction(struct sun4i_backend *backend); - -void sun4i_backend_commit(struct sun4i_backend *backend); +static inline struct sun4i_backend * +engine_to_sun4i_backend(struct sunxi_engine *engine) +{ + return container_of(engine, struct sun4i_backend, engine); +} void sun4i_backend_layer_enable(struct sun4i_backend *backend, int layer, bool enable); |