2 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
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.
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.
14 #ifndef __DSI_CONNECTOR_H__
15 #define __DSI_CONNECTOR_H__
17 #include <linux/of_platform.h>
18 #include <linux/platform_device.h>
20 #include <drm/drm_crtc.h>
21 #include <drm/drm_mipi_dsi.h>
22 #include <drm/drm_panel.h>
30 struct msm_dsi_phy_shared_timings;
31 struct msm_dsi_phy_clk_request;
33 enum msm_dsi_phy_type {
37 MSM_DSI_PHY_28NM_8960,
42 enum msm_dsi_phy_usecase {
43 MSM_DSI_PHY_STANDALONE,
48 #define DSI_DEV_REGULATOR_MAX 8
49 #define DSI_BUS_CLK_MAX 4
51 /* Regulators for DSI devices */
52 struct dsi_reg_entry {
58 struct dsi_reg_config {
60 struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX];
64 struct drm_device *dev;
65 struct platform_device *pdev;
67 /* connector managed by us when we're connected to a drm_panel */
68 struct drm_connector *connector;
69 /* internal dsi bridge attached to MDP interface */
70 struct drm_bridge *bridge;
72 struct mipi_dsi_host *host;
73 struct msm_dsi_phy *phy;
76 * panel/external_bridge connected to dsi bridge output, only one of the
77 * two can be valid at a time
79 struct drm_panel *panel;
80 struct drm_bridge *external_bridge;
81 unsigned long device_flags;
83 struct device *phy_dev;
86 /* the encoder we are hooked to (outside of dsi block) */
87 struct drm_encoder *encoder;
93 struct drm_bridge *msm_dsi_manager_bridge_init(u8 id);
94 void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge);
95 struct drm_connector *msm_dsi_manager_connector_init(u8 id);
96 struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id);
97 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
98 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len);
99 void msm_dsi_manager_attach_dsi_device(int id, u32 device_flags);
100 int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
101 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);
104 static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
106 return msm_dsi->panel || msm_dsi->external_bridge;
109 struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi);
113 #ifdef CONFIG_DRM_MSM_DSI_PLL
114 struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
115 enum msm_dsi_phy_type type, int dsi_id);
116 void msm_dsi_pll_destroy(struct msm_dsi_pll *pll);
117 int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
118 struct clk **byte_clk_provider, struct clk **pixel_clk_provider);
119 void msm_dsi_pll_save_state(struct msm_dsi_pll *pll);
120 int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll);
121 int msm_dsi_pll_set_usecase(struct msm_dsi_pll *pll,
122 enum msm_dsi_phy_usecase uc);
124 static inline struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
125 enum msm_dsi_phy_type type, int id) {
126 return ERR_PTR(-ENODEV);
128 static inline void msm_dsi_pll_destroy(struct msm_dsi_pll *pll)
131 static inline int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
132 struct clk **byte_clk_provider, struct clk **pixel_clk_provider)
136 static inline void msm_dsi_pll_save_state(struct msm_dsi_pll *pll)
139 static inline int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
143 static inline int msm_dsi_pll_set_usecase(struct msm_dsi_pll *pll,
144 enum msm_dsi_phy_usecase uc)
151 int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
152 const struct mipi_dsi_msg *msg);
153 void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
154 const struct mipi_dsi_msg *msg);
155 int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
156 const struct mipi_dsi_msg *msg);
157 int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
158 const struct mipi_dsi_msg *msg);
159 void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
160 u32 dma_base, u32 len);
161 int msm_dsi_host_enable(struct mipi_dsi_host *host);
162 int msm_dsi_host_disable(struct mipi_dsi_host *host);
163 int msm_dsi_host_power_on(struct mipi_dsi_host *host,
164 struct msm_dsi_phy_shared_timings *phy_shared_timings);
165 int msm_dsi_host_power_off(struct mipi_dsi_host *host);
166 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
167 struct drm_display_mode *mode);
168 struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host,
169 unsigned long *panel_flags);
170 struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host);
171 int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer);
172 void msm_dsi_host_unregister(struct mipi_dsi_host *host);
173 int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
174 struct msm_dsi_pll *src_pll);
175 void msm_dsi_host_reset_phy(struct mipi_dsi_host *host);
176 void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host,
177 struct msm_dsi_phy_clk_request *clk_req);
178 void msm_dsi_host_destroy(struct mipi_dsi_host *host);
179 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
180 struct drm_device *dev);
181 int msm_dsi_host_init(struct msm_dsi *msm_dsi);
182 int msm_dsi_runtime_suspend(struct device *dev);
183 int msm_dsi_runtime_resume(struct device *dev);
187 struct msm_dsi_phy_shared_timings {
190 bool clk_pre_inc_by_2;
193 struct msm_dsi_phy_clk_request {
194 unsigned long bitclk_rate;
195 unsigned long escclk_rate;
198 void msm_dsi_phy_driver_register(void);
199 void msm_dsi_phy_driver_unregister(void);
200 int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
201 struct msm_dsi_phy_clk_request *clk_req);
202 void msm_dsi_phy_disable(struct msm_dsi_phy *phy);
203 void msm_dsi_phy_get_shared_timings(struct msm_dsi_phy *phy,
204 struct msm_dsi_phy_shared_timings *shared_timing);
205 struct msm_dsi_pll *msm_dsi_phy_get_pll(struct msm_dsi_phy *phy);
206 void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy,
207 enum msm_dsi_phy_usecase uc);
209 #endif /* __DSI_CONNECTOR_H__ */