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_bridge.h> 13 #include <drm/drm_crtc.h> 14 #include <drm/drm_mipi_dsi.h> 15 #include <drm/drm_panel.h> 16 17 #include "msm_drv.h" 18 #include "disp/msm_disp_snapshot.h" 19 20 #define DSI_0 0 21 #define DSI_1 1 22 #define DSI_MAX 2 23 24 struct msm_dsi_phy_shared_timings; 25 struct msm_dsi_phy_clk_request; 26 27 enum msm_dsi_phy_usecase { 28 MSM_DSI_PHY_STANDALONE, 29 MSM_DSI_PHY_MASTER, 30 MSM_DSI_PHY_SLAVE, 31 }; 32 33 #define DSI_DEV_REGULATOR_MAX 8 34 #define DSI_BUS_CLK_MAX 4 35 36 /* Regulators for DSI devices */ 37 struct dsi_reg_entry { 38 char name[32]; 39 int enable_load; 40 int disable_load; 41 }; 42 43 struct dsi_reg_config { 44 int num; 45 struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX]; 46 }; 47 48 struct msm_dsi { 49 struct drm_device *dev; 50 struct platform_device *pdev; 51 52 /* connector managed by us when we're connected to a drm_panel */ 53 struct drm_connector *connector; 54 /* internal dsi bridge attached to MDP interface */ 55 struct drm_bridge *bridge; 56 57 struct mipi_dsi_host *host; 58 struct msm_dsi_phy *phy; 59 60 /* 61 * panel/external_bridge connected to dsi bridge output, only one of the 62 * two can be valid at a time 63 */ 64 struct drm_panel *panel; 65 struct drm_bridge *external_bridge; 66 67 struct device *phy_dev; 68 bool phy_enabled; 69 70 /* the encoder we are hooked to (outside of dsi block) */ 71 struct drm_encoder *encoder; 72 73 int id; 74 }; 75 76 /* dsi manager */ 77 struct drm_bridge *msm_dsi_manager_bridge_init(u8 id); 78 void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge); 79 struct drm_connector *msm_dsi_manager_connector_init(u8 id); 80 struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id); 81 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg); 82 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len); 83 void msm_dsi_manager_setup_encoder(int id); 84 int msm_dsi_manager_register(struct msm_dsi *msm_dsi); 85 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi); 86 bool msm_dsi_manager_validate_current_config(u8 id); 87 void msm_dsi_manager_tpg_enable(void); 88 89 /* msm dsi */ 90 static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi) 91 { 92 return msm_dsi->panel || msm_dsi->external_bridge; 93 } 94 95 struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi); 96 97 /* dsi host */ 98 struct msm_dsi_host; 99 int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host, 100 const struct mipi_dsi_msg *msg); 101 void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host, 102 const struct mipi_dsi_msg *msg); 103 int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host, 104 const struct mipi_dsi_msg *msg); 105 int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host, 106 const struct mipi_dsi_msg *msg); 107 void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host, 108 u32 dma_base, u32 len); 109 int msm_dsi_host_enable(struct mipi_dsi_host *host); 110 int msm_dsi_host_disable(struct mipi_dsi_host *host); 111 int msm_dsi_host_power_on(struct mipi_dsi_host *host, 112 struct msm_dsi_phy_shared_timings *phy_shared_timings, 113 bool is_dual_dsi); 114 int msm_dsi_host_power_off(struct mipi_dsi_host *host); 115 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, 116 const struct drm_display_mode *mode); 117 struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host); 118 unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); 119 struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host); 120 int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer); 121 void msm_dsi_host_unregister(struct mipi_dsi_host *host); 122 int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host, 123 struct msm_dsi_phy *src_phy); 124 void msm_dsi_host_reset_phy(struct mipi_dsi_host *host); 125 void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host, 126 struct msm_dsi_phy_clk_request *clk_req, 127 bool is_dual_dsi); 128 void msm_dsi_host_destroy(struct mipi_dsi_host *host); 129 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host, 130 struct drm_device *dev); 131 int msm_dsi_host_init(struct msm_dsi *msm_dsi); 132 int msm_dsi_runtime_suspend(struct device *dev); 133 int msm_dsi_runtime_resume(struct device *dev); 134 int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host); 135 int dsi_link_clk_set_rate_v2(struct msm_dsi_host *msm_host); 136 int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host); 137 int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host); 138 void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host); 139 void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host); 140 int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size); 141 int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size); 142 void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host); 143 void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host); 144 void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host); 145 int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova); 146 int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova); 147 int dsi_clk_init_v2(struct msm_dsi_host *msm_host); 148 int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host); 149 int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_dual_dsi); 150 int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_dual_dsi); 151 void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host); 152 void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host); 153 154 /* dsi phy */ 155 struct msm_dsi_phy; 156 struct msm_dsi_phy_shared_timings { 157 u32 clk_post; 158 u32 clk_pre; 159 bool clk_pre_inc_by_2; 160 }; 161 162 struct msm_dsi_phy_clk_request { 163 unsigned long bitclk_rate; 164 unsigned long escclk_rate; 165 }; 166 167 void msm_dsi_phy_driver_register(void); 168 void msm_dsi_phy_driver_unregister(void); 169 int msm_dsi_phy_enable(struct msm_dsi_phy *phy, 170 struct msm_dsi_phy_clk_request *clk_req, 171 struct msm_dsi_phy_shared_timings *shared_timings); 172 void msm_dsi_phy_disable(struct msm_dsi_phy *phy); 173 void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy, 174 enum msm_dsi_phy_usecase uc); 175 int msm_dsi_phy_get_clk_provider(struct msm_dsi_phy *phy, 176 struct clk **byte_clk_provider, struct clk **pixel_clk_provider); 177 void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy); 178 int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy); 179 void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy); 180 181 #endif /* __DSI_CONNECTOR_H__ */ 182 183