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,
43 enum msm_dsi_phy_usecase {
44 MSM_DSI_PHY_STANDALONE,
49 #define DSI_DEV_REGULATOR_MAX 8
50 #define DSI_BUS_CLK_MAX 4
52 /* Regulators for DSI devices */
53 struct dsi_reg_entry {
59 struct dsi_reg_config {
61 struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX];
65 struct drm_device *dev;
66 struct platform_device *pdev;
68 /* connector managed by us when we're connected to a drm_panel */
69 struct drm_connector *connector;
70 /* internal dsi bridge attached to MDP interface */
71 struct drm_bridge *bridge;
73 struct mipi_dsi_host *host;
74 struct msm_dsi_phy *phy;
77 * panel/external_bridge connected to dsi bridge output, only one of the
78 * two can be valid at a time
80 struct drm_panel *panel;
81 struct drm_bridge *external_bridge;
82 unsigned long device_flags;
84 struct device *phy_dev;
87 /* the encoder we are hooked to (outside of dsi block) */
88 struct drm_encoder *encoder;
94 struct drm_bridge *msm_dsi_manager_bridge_init(u8 id);
95 void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge);
96 struct drm_connector *msm_dsi_manager_connector_init(u8 id);
97 struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id);
98 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
99 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len);
100 void msm_dsi_manager_attach_dsi_device(int id, u32 device_flags);
101 int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
102 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);
103 bool msm_dsi_manager_validate_current_config(u8 id);
106 static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
108 return msm_dsi->panel || msm_dsi->external_bridge;
111 struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi);
115 #ifdef CONFIG_DRM_MSM_DSI_PLL
116 struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
117 enum msm_dsi_phy_type type, int dsi_id);
118 void msm_dsi_pll_destroy(struct msm_dsi_pll *pll);
119 int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
120 struct clk **byte_clk_provider, struct clk **pixel_clk_provider);
121 void msm_dsi_pll_save_state(struct msm_dsi_pll *pll);
122 int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll);
123 int msm_dsi_pll_set_usecase(struct msm_dsi_pll *pll,
124 enum msm_dsi_phy_usecase uc);
126 static inline struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
127 enum msm_dsi_phy_type type, int id) {
128 return ERR_PTR(-ENODEV);
130 static inline void msm_dsi_pll_destroy(struct msm_dsi_pll *pll)
133 static inline int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
134 struct clk **byte_clk_provider, struct clk **pixel_clk_provider)
138 static inline void msm_dsi_pll_save_state(struct msm_dsi_pll *pll)
141 static inline int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
145 static inline int msm_dsi_pll_set_usecase(struct msm_dsi_pll *pll,
146 enum msm_dsi_phy_usecase uc)
154 int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
155 const struct mipi_dsi_msg *msg);
156 void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
157 const struct mipi_dsi_msg *msg);
158 int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
159 const struct mipi_dsi_msg *msg);
160 int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
161 const struct mipi_dsi_msg *msg);
162 void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
163 u32 dma_base, u32 len);
164 int msm_dsi_host_enable(struct mipi_dsi_host *host);
165 int msm_dsi_host_disable(struct mipi_dsi_host *host);
166 int msm_dsi_host_power_on(struct mipi_dsi_host *host,
167 struct msm_dsi_phy_shared_timings *phy_shared_timings,
169 int msm_dsi_host_power_off(struct mipi_dsi_host *host);
170 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
171 struct drm_display_mode *mode);
172 struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host,
173 unsigned long *panel_flags);
174 struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host);
175 int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer);
176 void msm_dsi_host_unregister(struct mipi_dsi_host *host);
177 int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
178 struct msm_dsi_pll *src_pll);
179 void msm_dsi_host_reset_phy(struct mipi_dsi_host *host);
180 void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host,
181 struct msm_dsi_phy_clk_request *clk_req,
183 void msm_dsi_host_destroy(struct mipi_dsi_host *host);
184 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
185 struct drm_device *dev);
186 int msm_dsi_host_init(struct msm_dsi *msm_dsi);
187 int msm_dsi_runtime_suspend(struct device *dev);
188 int msm_dsi_runtime_resume(struct device *dev);
189 int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host);
190 int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host);
191 void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host);
192 void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host);
193 int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size);
194 int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size);
195 void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host);
196 void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host);
197 void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host);
198 int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova);
199 int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova);
200 int dsi_clk_init_v2(struct msm_dsi_host *msm_host);
201 int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host);
202 int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_dual_dsi);
203 int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_dual_dsi);
207 struct msm_dsi_phy_shared_timings {
210 bool clk_pre_inc_by_2;
213 struct msm_dsi_phy_clk_request {
214 unsigned long bitclk_rate;
215 unsigned long escclk_rate;
218 void msm_dsi_phy_driver_register(void);
219 void msm_dsi_phy_driver_unregister(void);
220 int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
221 struct msm_dsi_phy_clk_request *clk_req);
222 void msm_dsi_phy_disable(struct msm_dsi_phy *phy);
223 void msm_dsi_phy_get_shared_timings(struct msm_dsi_phy *phy,
224 struct msm_dsi_phy_shared_timings *shared_timing);
225 struct msm_dsi_pll *msm_dsi_phy_get_pll(struct msm_dsi_phy *phy);
226 void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy,
227 enum msm_dsi_phy_usecase uc);
229 #endif /* __DSI_CONNECTOR_H__ */