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1/*
2 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 and
6 * only version 2 as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 */
13
14#ifndef __DSI_CONNECTOR_H__
15#define __DSI_CONNECTOR_H__
16
17#include <linux/of_platform.h>
18#include <linux/platform_device.h>
19
20#include "drm_crtc.h"
21#include "drm_mipi_dsi.h"
22#include "drm_panel.h"
23
24#include "msm_drv.h"
25
26#define DSI_0 0
27#define DSI_1 1
28#define DSI_MAX 2
29
30enum msm_dsi_phy_type {
31 MSM_DSI_PHY_28NM_HPM,
32 MSM_DSI_PHY_28NM_LP,
33 MSM_DSI_PHY_20NM,
34 MSM_DSI_PHY_28NM_8960,
35 MSM_DSI_PHY_MAX
36};
37
38#define DSI_DEV_REGULATOR_MAX 8
39#define DSI_BUS_CLK_MAX 4
40
41/* Regulators for DSI devices */
42struct dsi_reg_entry {
43 char name[32];
44 int min_voltage;
45 int max_voltage;
46 int enable_load;
47 int disable_load;
48};
49
50struct dsi_reg_config {
51 int num;
52 struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX];
53};
54
55struct msm_dsi {
56 struct drm_device *dev;
57 struct platform_device *pdev;
58
59 /* connector managed by us when we're connected to a drm_panel */
60 struct drm_connector *connector;
61 /* internal dsi bridge attached to MDP interface */
62 struct drm_bridge *bridge;
63
64 struct mipi_dsi_host *host;
65 struct msm_dsi_phy *phy;
66
67 /*
68 * panel/external_bridge connected to dsi bridge output, only one of the
69 * two can be valid at a time
70 */
71 struct drm_panel *panel;
72 struct drm_bridge *external_bridge;
73 unsigned long device_flags;
74
75 struct device *phy_dev;
76 bool phy_enabled;
77
78 /* the encoders we are hooked to (outside of dsi block) */
79 struct drm_encoder *encoders[MSM_DSI_ENCODER_NUM];
80
81 int id;
82};
83
84/* dsi manager */
85struct drm_bridge *msm_dsi_manager_bridge_init(u8 id);
86void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge);
87struct drm_connector *msm_dsi_manager_connector_init(u8 id);
88struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id);
89int msm_dsi_manager_phy_enable(int id,
90 const unsigned long bit_rate, const unsigned long esc_rate,
91 u32 *clk_pre, u32 *clk_post);
92void msm_dsi_manager_phy_disable(int id);
93int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
94bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len);
95int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
96void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);
97
98/* msm dsi */
99static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
100{
101 return msm_dsi->panel || msm_dsi->external_bridge;
102}
103
104struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi);
105
106/* dsi pll */
107struct msm_dsi_pll;
108#ifdef CONFIG_DRM_MSM_DSI_PLL
109struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
110 enum msm_dsi_phy_type type, int dsi_id);
111void msm_dsi_pll_destroy(struct msm_dsi_pll *pll);
112int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
113 struct clk **byte_clk_provider, struct clk **pixel_clk_provider);
114void msm_dsi_pll_save_state(struct msm_dsi_pll *pll);
115int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll);
116#else
117static inline struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
118 enum msm_dsi_phy_type type, int id) {
119 return ERR_PTR(-ENODEV);
120}
121static inline void msm_dsi_pll_destroy(struct msm_dsi_pll *pll)
122{
123}
124static inline int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
125 struct clk **byte_clk_provider, struct clk **pixel_clk_provider)
126{
127 return -ENODEV;
128}
129static inline void msm_dsi_pll_save_state(struct msm_dsi_pll *pll)
130{
131}
132static inline int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
133{
134 return 0;
135}
136#endif
137
138/* dsi host */
139int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
140 const struct mipi_dsi_msg *msg);
141void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
142 const struct mipi_dsi_msg *msg);
143int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
144 const struct mipi_dsi_msg *msg);
145int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
146 const struct mipi_dsi_msg *msg);
147void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
148 u32 dma_base, u32 len);
149int msm_dsi_host_enable(struct mipi_dsi_host *host);
150int msm_dsi_host_disable(struct mipi_dsi_host *host);
151int msm_dsi_host_power_on(struct mipi_dsi_host *host);
152int msm_dsi_host_power_off(struct mipi_dsi_host *host);
153int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
154 struct drm_display_mode *mode);
155struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host,
156 unsigned long *panel_flags);
157struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host);
158int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer);
159void msm_dsi_host_unregister(struct mipi_dsi_host *host);
160int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
161 struct msm_dsi_pll *src_pll);
162void msm_dsi_host_destroy(struct mipi_dsi_host *host);
163int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
164 struct drm_device *dev);
165int msm_dsi_host_init(struct msm_dsi *msm_dsi);
166
167/* dsi phy */
168struct msm_dsi_phy;
169void msm_dsi_phy_driver_register(void);
170void msm_dsi_phy_driver_unregister(void);
171int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
172 const unsigned long bit_rate, const unsigned long esc_rate);
173void msm_dsi_phy_disable(struct msm_dsi_phy *phy);
174void msm_dsi_phy_get_clk_pre_post(struct msm_dsi_phy *phy,
175 u32 *clk_pre, u32 *clk_post);
176struct msm_dsi_pll *msm_dsi_phy_get_pll(struct msm_dsi_phy *phy);
177
178#endif /* __DSI_CONNECTOR_H__ */
179
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
4 */
5
6#ifndef __DSI_CONNECTOR_H__
7#define __DSI_CONNECTOR_H__
8
9#include <linux/of_platform.h>
10#include <linux/platform_device.h>
11
12#include <drm/drm_crtc.h>
13#include <drm/drm_mipi_dsi.h>
14#include <drm/drm_panel.h>
15
16#include "msm_drv.h"
17
18#define DSI_0 0
19#define DSI_1 1
20#define DSI_MAX 2
21
22struct msm_dsi_phy_shared_timings;
23struct msm_dsi_phy_clk_request;
24
25enum msm_dsi_phy_type {
26 MSM_DSI_PHY_28NM_HPM,
27 MSM_DSI_PHY_28NM_LP,
28 MSM_DSI_PHY_20NM,
29 MSM_DSI_PHY_28NM_8960,
30 MSM_DSI_PHY_14NM,
31 MSM_DSI_PHY_10NM,
32 MSM_DSI_PHY_MAX
33};
34
35enum msm_dsi_phy_usecase {
36 MSM_DSI_PHY_STANDALONE,
37 MSM_DSI_PHY_MASTER,
38 MSM_DSI_PHY_SLAVE,
39};
40
41#define DSI_DEV_REGULATOR_MAX 8
42#define DSI_BUS_CLK_MAX 4
43
44/* Regulators for DSI devices */
45struct dsi_reg_entry {
46 char name[32];
47 int enable_load;
48 int disable_load;
49};
50
51struct dsi_reg_config {
52 int num;
53 struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX];
54};
55
56struct msm_dsi {
57 struct drm_device *dev;
58 struct platform_device *pdev;
59
60 /* connector managed by us when we're connected to a drm_panel */
61 struct drm_connector *connector;
62 /* internal dsi bridge attached to MDP interface */
63 struct drm_bridge *bridge;
64
65 struct mipi_dsi_host *host;
66 struct msm_dsi_phy *phy;
67
68 /*
69 * panel/external_bridge connected to dsi bridge output, only one of the
70 * two can be valid at a time
71 */
72 struct drm_panel *panel;
73 struct drm_bridge *external_bridge;
74
75 struct device *phy_dev;
76 bool phy_enabled;
77
78 /* the encoder we are hooked to (outside of dsi block) */
79 struct drm_encoder *encoder;
80
81 int id;
82};
83
84/* dsi manager */
85struct drm_bridge *msm_dsi_manager_bridge_init(u8 id);
86void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge);
87struct drm_connector *msm_dsi_manager_connector_init(u8 id);
88struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id);
89int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
90bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len);
91void msm_dsi_manager_setup_encoder(int id);
92int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
93void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);
94bool msm_dsi_manager_validate_current_config(u8 id);
95
96/* msm dsi */
97static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
98{
99 return msm_dsi->panel || msm_dsi->external_bridge;
100}
101
102struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi);
103
104/* dsi pll */
105struct msm_dsi_pll;
106#ifdef CONFIG_DRM_MSM_DSI_PLL
107struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
108 enum msm_dsi_phy_type type, int dsi_id);
109void msm_dsi_pll_destroy(struct msm_dsi_pll *pll);
110int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
111 struct clk **byte_clk_provider, struct clk **pixel_clk_provider);
112void msm_dsi_pll_save_state(struct msm_dsi_pll *pll);
113int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll);
114int msm_dsi_pll_set_usecase(struct msm_dsi_pll *pll,
115 enum msm_dsi_phy_usecase uc);
116#else
117static inline struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
118 enum msm_dsi_phy_type type, int id) {
119 return ERR_PTR(-ENODEV);
120}
121static inline void msm_dsi_pll_destroy(struct msm_dsi_pll *pll)
122{
123}
124static inline int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
125 struct clk **byte_clk_provider, struct clk **pixel_clk_provider)
126{
127 return -ENODEV;
128}
129static inline void msm_dsi_pll_save_state(struct msm_dsi_pll *pll)
130{
131}
132static inline int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
133{
134 return 0;
135}
136static inline int msm_dsi_pll_set_usecase(struct msm_dsi_pll *pll,
137 enum msm_dsi_phy_usecase uc)
138{
139 return -ENODEV;
140}
141#endif
142
143/* dsi host */
144struct msm_dsi_host;
145int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
146 const struct mipi_dsi_msg *msg);
147void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
148 const struct mipi_dsi_msg *msg);
149int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
150 const struct mipi_dsi_msg *msg);
151int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
152 const struct mipi_dsi_msg *msg);
153void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
154 u32 dma_base, u32 len);
155int msm_dsi_host_enable(struct mipi_dsi_host *host);
156int msm_dsi_host_disable(struct mipi_dsi_host *host);
157int msm_dsi_host_power_on(struct mipi_dsi_host *host,
158 struct msm_dsi_phy_shared_timings *phy_shared_timings,
159 bool is_dual_dsi);
160int msm_dsi_host_power_off(struct mipi_dsi_host *host);
161int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
162 const struct drm_display_mode *mode);
163struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host);
164unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host);
165struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host);
166int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer);
167void msm_dsi_host_unregister(struct mipi_dsi_host *host);
168int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
169 struct msm_dsi_pll *src_pll);
170void msm_dsi_host_reset_phy(struct mipi_dsi_host *host);
171void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host,
172 struct msm_dsi_phy_clk_request *clk_req,
173 bool is_dual_dsi);
174void msm_dsi_host_destroy(struct mipi_dsi_host *host);
175int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
176 struct drm_device *dev);
177int msm_dsi_host_init(struct msm_dsi *msm_dsi);
178int msm_dsi_runtime_suspend(struct device *dev);
179int msm_dsi_runtime_resume(struct device *dev);
180int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host);
181int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host);
182void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host);
183void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host);
184int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size);
185int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size);
186void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host);
187void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host);
188void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host);
189int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova);
190int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova);
191int dsi_clk_init_v2(struct msm_dsi_host *msm_host);
192int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host);
193int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_dual_dsi);
194int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_dual_dsi);
195
196/* dsi phy */
197struct msm_dsi_phy;
198struct msm_dsi_phy_shared_timings {
199 u32 clk_post;
200 u32 clk_pre;
201 bool clk_pre_inc_by_2;
202};
203
204struct msm_dsi_phy_clk_request {
205 unsigned long bitclk_rate;
206 unsigned long escclk_rate;
207};
208
209void msm_dsi_phy_driver_register(void);
210void msm_dsi_phy_driver_unregister(void);
211int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
212 struct msm_dsi_phy_clk_request *clk_req);
213void msm_dsi_phy_disable(struct msm_dsi_phy *phy);
214void msm_dsi_phy_get_shared_timings(struct msm_dsi_phy *phy,
215 struct msm_dsi_phy_shared_timings *shared_timing);
216struct msm_dsi_pll *msm_dsi_phy_get_pll(struct msm_dsi_phy *phy);
217void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy,
218 enum msm_dsi_phy_usecase uc);
219
220#endif /* __DSI_CONNECTOR_H__ */
221