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 int msm_dsi_manager_register(struct msm_dsi *msm_dsi); 84 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi); 85 bool msm_dsi_manager_validate_current_config(u8 id); 86 void msm_dsi_manager_tpg_enable(void); 87 88 /* msm dsi */ 89 static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi) 90 { 91 return msm_dsi->panel || msm_dsi->external_bridge; 92 } 93 94 struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi); 95 96 /* dsi host */ 97 struct msm_dsi_host; 98 int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host, 99 const struct mipi_dsi_msg *msg); 100 void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host, 101 const struct mipi_dsi_msg *msg); 102 int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host, 103 const struct mipi_dsi_msg *msg); 104 int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host, 105 const struct mipi_dsi_msg *msg); 106 void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host, 107 u32 dma_base, u32 len); 108 int msm_dsi_host_enable(struct mipi_dsi_host *host); 109 int msm_dsi_host_disable(struct mipi_dsi_host *host); 110 void msm_dsi_host_enable_irq(struct mipi_dsi_host *host); 111 void msm_dsi_host_disable_irq(struct mipi_dsi_host *host); 112 int msm_dsi_host_power_on(struct mipi_dsi_host *host, 113 struct msm_dsi_phy_shared_timings *phy_shared_timings, 114 bool is_bonded_dsi, struct msm_dsi_phy *phy); 115 int msm_dsi_host_power_off(struct mipi_dsi_host *host); 116 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, 117 const struct drm_display_mode *mode); 118 struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host); 119 unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); 120 struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host); 121 int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer); 122 void msm_dsi_host_unregister(struct mipi_dsi_host *host); 123 void msm_dsi_host_set_phy_mode(struct mipi_dsi_host *host, 124 struct msm_dsi_phy *src_phy); 125 int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host, 126 struct msm_dsi_phy *src_phy); 127 void msm_dsi_host_reset_phy(struct mipi_dsi_host *host); 128 void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host, 129 struct msm_dsi_phy_clk_request *clk_req, 130 bool is_bonded_dsi); 131 void msm_dsi_host_destroy(struct mipi_dsi_host *host); 132 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host, 133 struct drm_device *dev); 134 int msm_dsi_host_init(struct msm_dsi *msm_dsi); 135 int msm_dsi_runtime_suspend(struct device *dev); 136 int msm_dsi_runtime_resume(struct device *dev); 137 int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host); 138 int dsi_link_clk_set_rate_v2(struct msm_dsi_host *msm_host); 139 int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host); 140 int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host); 141 void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host); 142 void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host); 143 int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size); 144 int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size); 145 void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host); 146 void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host); 147 void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host); 148 int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova); 149 int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova); 150 int dsi_clk_init_v2(struct msm_dsi_host *msm_host); 151 int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host); 152 int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 153 int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 154 void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host); 155 void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host); 156 157 /* dsi phy */ 158 struct msm_dsi_phy; 159 struct msm_dsi_phy_shared_timings { 160 u32 clk_post; 161 u32 clk_pre; 162 bool clk_pre_inc_by_2; 163 }; 164 165 struct msm_dsi_phy_clk_request { 166 unsigned long bitclk_rate; 167 unsigned long escclk_rate; 168 }; 169 170 void msm_dsi_phy_driver_register(void); 171 void msm_dsi_phy_driver_unregister(void); 172 int msm_dsi_phy_enable(struct msm_dsi_phy *phy, 173 struct msm_dsi_phy_clk_request *clk_req, 174 struct msm_dsi_phy_shared_timings *shared_timings); 175 void msm_dsi_phy_disable(struct msm_dsi_phy *phy); 176 void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy, 177 enum msm_dsi_phy_usecase uc); 178 void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy); 179 int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy); 180 void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy); 181 bool msm_dsi_phy_set_continuous_clock(struct msm_dsi_phy *phy, bool enable); 182 183 #endif /* __DSI_CONNECTOR_H__ */ 184 185