linux/drivers/gpu/drm/msm/disp/mdp5/mdp5_mixer.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2017 The Linux Foundation. All rights reserved.
 */

#ifndef __MDP5_LM_H__
#define __MDP5_LM_H__

/* represents a hw Layer Mixer, one (or more) is dynamically assigned to a crtc */
struct mdp5_hw_mixer {
	int idx;

	const char *name;

	int lm;			/* the LM instance # */
	uint32_t caps;
	int pp;
	int dspp;

	uint32_t flush_mask;      /* used to commit LM registers */
};

/* global atomic state of assignment between CRTCs and Layer Mixers: */
struct mdp5_hw_mixer_state {
	struct drm_crtc *hwmixer_to_crtc[8];
};

struct mdp5_hw_mixer *mdp5_mixer_init(struct drm_device *dev,
				      const struct mdp5_lm_instance *lm);
int mdp5_mixer_assign(struct drm_atomic_state *s, struct drm_crtc *crtc,
		      uint32_t caps, struct mdp5_hw_mixer **mixer,
		      struct mdp5_hw_mixer **r_mixer);
int mdp5_mixer_release(struct drm_atomic_state *s,
		       struct mdp5_hw_mixer *mixer);

#endif /* __MDP5_LM_H__ */