blob: e32222c3d44f3710a2c6c6068daad543c13247da [file] [log] [blame]
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <>
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <>.
#ifndef __MSM_KMS_H__
#define __MSM_KMS_H__
#include <linux/clk.h>
#include <linux/regulator/consumer.h>
#include "msm_drv.h"
#define MAX_PLANE 4
/* As there are different display controller blocks depending on the
* snapdragon version, the kms support is split out and the appropriate
* implementation is loaded at runtime. The kms module is responsible
* for constructing the appropriate planes/crtcs/encoders/connectors.
struct msm_kms_funcs {
/* hw initialization: */
int (*hw_init)(struct msm_kms *kms);
/* irq handling: */
void (*irq_preinstall)(struct msm_kms *kms);
int (*irq_postinstall)(struct msm_kms *kms);
void (*irq_uninstall)(struct msm_kms *kms);
irqreturn_t (*irq)(struct msm_kms *kms);
int (*enable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc);
void (*disable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc);
/* modeset, bracketing atomic_commit(): */
void (*prepare_commit)(struct msm_kms *kms, struct drm_atomic_state *state);
void (*complete_commit)(struct msm_kms *kms, struct drm_atomic_state *state);
/* functions to wait for atomic commit completed on each CRTC */
void (*wait_for_crtc_commit_done)(struct msm_kms *kms,
struct drm_crtc *crtc);
/* misc: */
const struct msm_format *(*get_format)(struct msm_kms *kms, uint32_t format);
long (*round_pixclk)(struct msm_kms *kms, unsigned long rate,
struct drm_encoder *encoder);
int (*set_split_display)(struct msm_kms *kms,
struct drm_encoder *encoder,
struct drm_encoder *slave_encoder,
bool is_cmd_mode);
/* cleanup: */
void (*destroy)(struct msm_kms *kms);
struct msm_kms {
const struct msm_kms_funcs *funcs;
/* irq handling: */
bool in_irq;
struct list_head irq_list; /* list of mdp4_irq */
uint32_t vblank_mask; /* irq bits set for userspace vblank */
static inline void msm_kms_init(struct msm_kms *kms,
const struct msm_kms_funcs *funcs)
kms->funcs = funcs;
struct msm_kms *mdp4_kms_init(struct drm_device *dev);
struct msm_kms *mdp5_kms_init(struct drm_device *dev);
#endif /* __MSM_KMS_H__ */