disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/drm/sun4i/sun4i_backend.h
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@@ -1,13 +1,9 @@
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
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 /*
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  * Copyright (C) 2015 Free Electrons
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  * Copyright (C) 2015 NextThing Co
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  *
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  * Maxime Ripard <maxime.ripard@free-electrons.com>
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License as
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- * published by the Free Software Foundation; either version 2 of
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- * the License, or (at your option) any later version.
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  */
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 #ifndef _SUN4I_BACKEND_H_
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 #define SUN4I_BACKEND_PIPE_OFF(p)		(0x5000 + (0x400 * (p)))
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 #define SUN4I_BACKEND_NUM_LAYERS		4
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-#define SUN4I_BACKEND_NUM_ALPHA_LAYERS		1
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 #define SUN4I_BACKEND_NUM_FRONTEND_LAYERS	1
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 #define SUN4I_BACKEND_NUM_YUV_PLANES		1
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 	/* Protects against races in the frontend teardown */
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 	spinlock_t		frontend_lock;
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 	bool			frontend_teardown;
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+
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+	const struct sun4i_backend_quirks	*quirks;
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 };
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 static inline struct sun4i_backend *
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@@ -197,6 +194,7 @@
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 void sun4i_backend_layer_enable(struct sun4i_backend *backend,
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 				int layer, bool enable);
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+bool sun4i_backend_format_is_supported(uint32_t fmt, uint64_t modifier);
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 int sun4i_backend_update_layer_coord(struct sun4i_backend *backend,
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 				     int layer, struct drm_plane *plane);
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 int sun4i_backend_update_layer_formats(struct sun4i_backend *backend,
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 					int layer, uint32_t in_fmt);
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 int sun4i_backend_update_layer_zpos(struct sun4i_backend *backend,
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 				    int layer, struct drm_plane *plane);
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+void sun4i_backend_cleanup_layer(struct sun4i_backend *backend,
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+				 int layer);
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 #endif /* _SUN4I_BACKEND_H_ */