root/drivers/gpu/drm/msm/dsi/dsi.h

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INCLUDED FROM


DEFINITIONS

This source file includes following definitions.
  1. msm_dsi_device_connected
  2. msm_dsi_pll_init
  3. msm_dsi_pll_destroy
  4. msm_dsi_pll_get_clk_provider
  5. msm_dsi_pll_save_state
  6. msm_dsi_pll_restore_state
  7. msm_dsi_pll_set_usecase

   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 
  22 struct msm_dsi_phy_shared_timings;
  23 struct msm_dsi_phy_clk_request;
  24 
  25 enum 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 
  35 enum 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 */
  45 struct dsi_reg_entry {
  46         char name[32];
  47         int enable_load;
  48         int disable_load;
  49 };
  50 
  51 struct dsi_reg_config {
  52         int num;
  53         struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX];
  54 };
  55 
  56 struct 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 */
  85 struct drm_bridge *msm_dsi_manager_bridge_init(u8 id);
  86 void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge);
  87 struct drm_connector *msm_dsi_manager_connector_init(u8 id);
  88 struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id);
  89 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
  90 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len);
  91 void msm_dsi_manager_setup_encoder(int id);
  92 int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
  93 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);
  94 bool msm_dsi_manager_validate_current_config(u8 id);
  95 
  96 /* msm dsi */
  97 static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
  98 {
  99         return msm_dsi->panel || msm_dsi->external_bridge;
 100 }
 101 
 102 struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi);
 103 
 104 /* dsi pll */
 105 struct msm_dsi_pll;
 106 #ifdef CONFIG_DRM_MSM_DSI_PLL
 107 struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
 108                         enum msm_dsi_phy_type type, int dsi_id);
 109 void msm_dsi_pll_destroy(struct msm_dsi_pll *pll);
 110 int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
 111         struct clk **byte_clk_provider, struct clk **pixel_clk_provider);
 112 void msm_dsi_pll_save_state(struct msm_dsi_pll *pll);
 113 int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll);
 114 int msm_dsi_pll_set_usecase(struct msm_dsi_pll *pll,
 115                             enum msm_dsi_phy_usecase uc);
 116 #else
 117 static 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 }
 121 static inline void msm_dsi_pll_destroy(struct msm_dsi_pll *pll)
 122 {
 123 }
 124 static 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 }
 129 static inline void msm_dsi_pll_save_state(struct msm_dsi_pll *pll)
 130 {
 131 }
 132 static inline int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
 133 {
 134         return 0;
 135 }
 136 static 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 */
 144 struct msm_dsi_host;
 145 int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
 146                                         const struct mipi_dsi_msg *msg);
 147 void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
 148                                         const struct mipi_dsi_msg *msg);
 149 int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
 150                                         const struct mipi_dsi_msg *msg);
 151 int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
 152                                         const struct mipi_dsi_msg *msg);
 153 void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
 154                                         u32 dma_base, u32 len);
 155 int msm_dsi_host_enable(struct mipi_dsi_host *host);
 156 int msm_dsi_host_disable(struct mipi_dsi_host *host);
 157 int 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);
 160 int msm_dsi_host_power_off(struct mipi_dsi_host *host);
 161 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
 162                                   const struct drm_display_mode *mode);
 163 struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host);
 164 unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host);
 165 struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host);
 166 int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer);
 167 void msm_dsi_host_unregister(struct mipi_dsi_host *host);
 168 int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
 169                         struct msm_dsi_pll *src_pll);
 170 void msm_dsi_host_reset_phy(struct mipi_dsi_host *host);
 171 void 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);
 174 void msm_dsi_host_destroy(struct mipi_dsi_host *host);
 175 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
 176                                         struct drm_device *dev);
 177 int msm_dsi_host_init(struct msm_dsi *msm_dsi);
 178 int msm_dsi_runtime_suspend(struct device *dev);
 179 int msm_dsi_runtime_resume(struct device *dev);
 180 int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host);
 181 int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host);
 182 void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host);
 183 void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host);
 184 int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size);
 185 int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size);
 186 void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host);
 187 void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host);
 188 void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host);
 189 int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova);
 190 int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova);
 191 int dsi_clk_init_v2(struct msm_dsi_host *msm_host);
 192 int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host);
 193 int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_dual_dsi);
 194 int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_dual_dsi);
 195 
 196 /* dsi phy */
 197 struct msm_dsi_phy;
 198 struct msm_dsi_phy_shared_timings {
 199         u32 clk_post;
 200         u32 clk_pre;
 201         bool clk_pre_inc_by_2;
 202 };
 203 
 204 struct msm_dsi_phy_clk_request {
 205         unsigned long bitclk_rate;
 206         unsigned long escclk_rate;
 207 };
 208 
 209 void msm_dsi_phy_driver_register(void);
 210 void msm_dsi_phy_driver_unregister(void);
 211 int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
 212                         struct msm_dsi_phy_clk_request *clk_req);
 213 void msm_dsi_phy_disable(struct msm_dsi_phy *phy);
 214 void msm_dsi_phy_get_shared_timings(struct msm_dsi_phy *phy,
 215                         struct msm_dsi_phy_shared_timings *shared_timing);
 216 struct msm_dsi_pll *msm_dsi_phy_get_pll(struct msm_dsi_phy *phy);
 217 void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy,
 218                              enum msm_dsi_phy_usecase uc);
 219 
 220 #endif /* __DSI_CONNECTOR_H__ */
 221 

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