summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/msm/dsi/dsi.h
blob: 1636513347e0e5419a287313afac1a769977d5fb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
/*
 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only 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.
 */

#ifndef __DSI_CONNECTOR_H__
#define __DSI_CONNECTOR_H__

#include <linux/of_platform.h>
#include <linux/platform_device.h>

#include "drm_crtc.h"
#include "drm_mipi_dsi.h"
#include "drm_panel.h"

#include "msm_drv.h"

#define DSI_0	0
#define DSI_1	1
#define DSI_MAX	2

enum msm_dsi_phy_type {
	MSM_DSI_PHY_28NM_HPM,
	MSM_DSI_PHY_28NM_LP,
	MSM_DSI_PHY_20NM,
	MSM_DSI_PHY_MAX
};

#define DSI_DEV_REGULATOR_MAX	8

/* Regulators for DSI devices */
struct dsi_reg_entry {
	char name[32];
	int min_voltage;
	int max_voltage;
	int enable_load;
	int disable_load;
};

struct dsi_reg_config {
	int num;
	struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX];
};

struct msm_dsi {
	struct drm_device *dev;
	struct platform_device *pdev;

	struct drm_connector *connector;
	struct drm_bridge *bridge;

	struct mipi_dsi_host *host;
	struct msm_dsi_phy *phy;
	struct drm_panel *panel;
	unsigned long device_flags;

	struct device *phy_dev;
	bool phy_enabled;

	/* the encoders we are hooked to (outside of dsi block) */
	struct drm_encoder *encoders[MSM_DSI_ENCODER_NUM];

	int id;
};

/* dsi manager */
struct drm_bridge *msm_dsi_manager_bridge_init(u8 id);
void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge);
struct drm_connector *msm_dsi_manager_connector_init(u8 id);
int msm_dsi_manager_phy_enable(int id,
		const unsigned long bit_rate, const unsigned long esc_rate,
		u32 *clk_pre, u32 *clk_post);
void msm_dsi_manager_phy_disable(int id);
int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 iova, u32 len);
int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);

/* msm dsi */
static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
{
	return msm_dsi->panel;
}

struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi);

/* dsi pll */
struct msm_dsi_pll;
#ifdef CONFIG_DRM_MSM_DSI_PLL
struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
			enum msm_dsi_phy_type type, int dsi_id);
void msm_dsi_pll_destroy(struct msm_dsi_pll *pll);
int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
	struct clk **byte_clk_provider, struct clk **pixel_clk_provider);
void msm_dsi_pll_save_state(struct msm_dsi_pll *pll);
int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll);
#else
static inline struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
			 enum msm_dsi_phy_type type, int id) {
	return ERR_PTR(-ENODEV);
}
static inline void msm_dsi_pll_destroy(struct msm_dsi_pll *pll)
{
}
static inline int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
	struct clk **byte_clk_provider, struct clk **pixel_clk_provider)
{
	return -ENODEV;
}
static inline void msm_dsi_pll_save_state(struct msm_dsi_pll *pll)
{
}
static inline int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
{
	return 0;
}
#endif

/* dsi host */
int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
					const struct mipi_dsi_msg *msg);
void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
					const struct mipi_dsi_msg *msg);
int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
					const struct mipi_dsi_msg *msg);
int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
					const struct mipi_dsi_msg *msg);
void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
					u32 iova, u32 len);
int msm_dsi_host_enable(struct mipi_dsi_host *host);
int msm_dsi_host_disable(struct mipi_dsi_host *host);
int msm_dsi_host_power_on(struct mipi_dsi_host *host);
int msm_dsi_host_power_off(struct mipi_dsi_host *host);
int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
					struct drm_display_mode *mode);
struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host,
					unsigned long *panel_flags);
int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer);
void msm_dsi_host_unregister(struct mipi_dsi_host *host);
int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
			struct msm_dsi_pll *src_pll);
void msm_dsi_host_destroy(struct mipi_dsi_host *host);
int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
					struct drm_device *dev);
int msm_dsi_host_init(struct msm_dsi *msm_dsi);

/* dsi phy */
struct msm_dsi_phy;
void msm_dsi_phy_driver_register(void);
void msm_dsi_phy_driver_unregister(void);
int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
	const unsigned long bit_rate, const unsigned long esc_rate);
int msm_dsi_phy_disable(struct msm_dsi_phy *phy);
void msm_dsi_phy_get_clk_pre_post(struct msm_dsi_phy *phy,
					u32 *clk_pre, u32 *clk_post);
struct msm_dsi_pll *msm_dsi_phy_get_pll(struct msm_dsi_phy *phy);

#endif /* __DSI_CONNECTOR_H__ */