drm/sun4i/sunxi_engine.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
18  * struct sunxi_engine_ops - helper operations for sunXi engines
40 	 * This callback allows to validate plane-update related CRTC
49 	 * 0 on success or a negative error code.
78 	 * error pointer on failure.
86 	 * This callback will enable the color correction in the
96 	 * This callback will stop the color correction in the
106 	 * This callback is used to implement engine-specific
129  * struct sunxi_engine - the common parts of an engine for sun4i-drm driver
133  * @id:		the id of the engine (-1 if not used)
148  * sunxi_engine_commit() - commit all changes of the engine
158 	if (engine->ops && engine->ops->commit)  in sunxi_engine_commit()
159 		engine->ops->commit(engine, crtc, state);  in sunxi_engine_commit()
163  * sunxi_engine_layers_init() - Create planes (layers) for the engine
170 	if (engine->ops && engine->ops->layers_init)  in sunxi_engine_layers_init()
171 		return engine->ops->layers_init(drm, engine);  in sunxi_engine_layers_init()
172 	return ERR_PTR(-ENOSYS);  in sunxi_engine_layers_init()
176  * sunxi_engine_apply_color_correction - Apply the RGB2YUV color correction
181  * without the color correction, due to TV Encoder expects the engine to
187 	if (engine->ops && engine->ops->apply_color_correction)  in sunxi_engine_apply_color_correction()
188 		engine->ops->apply_color_correction(engine);  in sunxi_engine_apply_color_correction()
192  * sunxi_engine_disable_color_correction - Disable the color space correction
200 	if (engine->ops && engine->ops->disable_color_correction)  in sunxi_engine_disable_color_correction()
201 		engine->ops->disable_color_correction(engine);  in sunxi_engine_disable_color_correction()
205  * sunxi_engine_mode_set - Inform engine of a new mode
215 	if (engine->ops && engine->ops->mode_set)  in sunxi_engine_mode_set()
216 		engine->ops->mode_set(engine, mode);  in sunxi_engine_mode_set()