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 16 #include "msm_drv.h" 17 #include "disp/msm_disp_snapshot.h" 18 19 #define DSI_0 0 20 #define DSI_1 1 21 #define DSI_MAX 2 22 23 struct msm_dsi_phy_shared_timings; 24 struct msm_dsi_phy_clk_request; 25 26 enum msm_dsi_phy_usecase { 27 MSM_DSI_PHY_STANDALONE, 28 MSM_DSI_PHY_MASTER, 29 MSM_DSI_PHY_SLAVE, 30 }; 31 32 #define DSI_BUS_CLK_MAX 4 33 34 struct msm_dsi { 35 struct drm_device *dev; 36 struct platform_device *pdev; 37 38 struct mipi_dsi_host *host; 39 struct msm_dsi_phy *phy; 40 41 /* 42 * external_bridge connected to dsi bridge output 43 */ 44 struct drm_bridge *external_bridge; 45 46 struct device *phy_dev; 47 bool phy_enabled; 48 49 /* the encoder we are hooked to (outside of dsi block) */ 50 struct drm_encoder *encoder; 51 52 int id; 53 }; 54 55 /* dsi manager */ 56 struct drm_bridge *msm_dsi_manager_bridge_init(struct msm_dsi *msm_dsi); 57 int msm_dsi_manager_ext_bridge_init(u8 id, struct drm_bridge *int_bridge); 58 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg); 59 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len); 60 int msm_dsi_manager_register(struct msm_dsi *msm_dsi); 61 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi); 62 void msm_dsi_manager_tpg_enable(void); 63 64 /* msm dsi */ 65 static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi) 66 { 67 return msm_dsi->external_bridge; 68 } 69 70 /* dsi host */ 71 struct msm_dsi_host; 72 int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host, 73 const struct mipi_dsi_msg *msg); 74 void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host, 75 const struct mipi_dsi_msg *msg); 76 int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host, 77 const struct mipi_dsi_msg *msg); 78 int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host, 79 const struct mipi_dsi_msg *msg); 80 void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host, 81 u32 dma_base, u32 len); 82 int msm_dsi_host_enable(struct mipi_dsi_host *host); 83 int msm_dsi_host_disable(struct mipi_dsi_host *host); 84 void msm_dsi_host_enable_irq(struct mipi_dsi_host *host); 85 void msm_dsi_host_disable_irq(struct mipi_dsi_host *host); 86 int msm_dsi_host_power_on(struct mipi_dsi_host *host, 87 struct msm_dsi_phy_shared_timings *phy_shared_timings, 88 bool is_bonded_dsi, struct msm_dsi_phy *phy); 89 int msm_dsi_host_power_off(struct mipi_dsi_host *host); 90 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, 91 const struct drm_display_mode *mode); 92 enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, 93 const struct drm_display_mode *mode); 94 unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); 95 int msm_dsi_host_register(struct mipi_dsi_host *host); 96 void msm_dsi_host_unregister(struct mipi_dsi_host *host); 97 void msm_dsi_host_set_phy_mode(struct mipi_dsi_host *host, 98 struct msm_dsi_phy *src_phy); 99 int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host, 100 struct msm_dsi_phy *src_phy); 101 void msm_dsi_host_reset_phy(struct mipi_dsi_host *host); 102 void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host, 103 struct msm_dsi_phy_clk_request *clk_req, 104 bool is_bonded_dsi); 105 void msm_dsi_host_destroy(struct mipi_dsi_host *host); 106 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host, 107 struct drm_device *dev); 108 int msm_dsi_host_init(struct msm_dsi *msm_dsi); 109 int msm_dsi_runtime_suspend(struct device *dev); 110 int msm_dsi_runtime_resume(struct device *dev); 111 int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host); 112 int dsi_link_clk_set_rate_v2(struct msm_dsi_host *msm_host); 113 int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host); 114 int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host); 115 void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host); 116 void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host); 117 unsigned long dsi_byte_clk_get_rate(struct mipi_dsi_host *host, bool is_bonded_dsi, 118 const struct drm_display_mode *mode); 119 int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size); 120 int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size); 121 void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host); 122 void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host); 123 void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host); 124 void msm_dsi_tx_buf_free(struct mipi_dsi_host *mipi_host); 125 int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova); 126 int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova); 127 int dsi_clk_init_v2(struct msm_dsi_host *msm_host); 128 int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host); 129 int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 130 int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 131 void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host); 132 void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host); 133 struct drm_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host); 134 bool msm_dsi_host_is_wide_bus_enabled(struct mipi_dsi_host *host); 135 136 /* dsi phy */ 137 struct msm_dsi_phy; 138 struct msm_dsi_phy_shared_timings { 139 u32 clk_post; 140 u32 clk_pre; 141 bool clk_pre_inc_by_2; 142 bool byte_intf_clk_div_2; 143 }; 144 145 struct msm_dsi_phy_clk_request { 146 unsigned long bitclk_rate; 147 unsigned long escclk_rate; 148 }; 149 150 void msm_dsi_phy_driver_register(void); 151 void msm_dsi_phy_driver_unregister(void); 152 int msm_dsi_phy_enable(struct msm_dsi_phy *phy, 153 struct msm_dsi_phy_clk_request *clk_req, 154 struct msm_dsi_phy_shared_timings *shared_timings); 155 void msm_dsi_phy_disable(struct msm_dsi_phy *phy); 156 void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy, 157 enum msm_dsi_phy_usecase uc); 158 void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy); 159 int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy); 160 void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy); 161 bool msm_dsi_phy_set_continuous_clock(struct msm_dsi_phy *phy, bool enable); 162 163 #endif /* __DSI_CONNECTOR_H__ */ 164 165