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_BUS_CLK_MAX 4 34 35 struct msm_dsi { 36 struct drm_device *dev; 37 struct platform_device *pdev; 38 39 /* connector managed by us when we're connected to a drm_panel */ 40 struct drm_connector *connector; 41 /* internal dsi bridge attached to MDP interface */ 42 struct drm_bridge *bridge; 43 44 struct mipi_dsi_host *host; 45 struct msm_dsi_phy *phy; 46 47 /* 48 * panel/external_bridge connected to dsi bridge output, only one of the 49 * two can be valid at a time 50 */ 51 struct drm_panel *panel; 52 struct drm_bridge *external_bridge; 53 54 struct device *phy_dev; 55 bool phy_enabled; 56 57 /* the encoder we are hooked to (outside of dsi block) */ 58 struct drm_encoder *encoder; 59 60 int id; 61 }; 62 63 /* dsi manager */ 64 struct drm_bridge *msm_dsi_manager_bridge_init(u8 id); 65 void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge); 66 struct drm_connector *msm_dsi_manager_connector_init(u8 id); 67 struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id); 68 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg); 69 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len); 70 int msm_dsi_manager_register(struct msm_dsi *msm_dsi); 71 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi); 72 void msm_dsi_manager_tpg_enable(void); 73 74 /* msm dsi */ 75 static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi) 76 { 77 return msm_dsi->panel || msm_dsi->external_bridge; 78 } 79 80 struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi); 81 82 /* dsi host */ 83 struct msm_dsi_host; 84 int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host, 85 const struct mipi_dsi_msg *msg); 86 void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host, 87 const struct mipi_dsi_msg *msg); 88 int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host, 89 const struct mipi_dsi_msg *msg); 90 int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host, 91 const struct mipi_dsi_msg *msg); 92 void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host, 93 u32 dma_base, u32 len); 94 int msm_dsi_host_enable(struct mipi_dsi_host *host); 95 int msm_dsi_host_disable(struct mipi_dsi_host *host); 96 void msm_dsi_host_enable_irq(struct mipi_dsi_host *host); 97 void msm_dsi_host_disable_irq(struct mipi_dsi_host *host); 98 int msm_dsi_host_power_on(struct mipi_dsi_host *host, 99 struct msm_dsi_phy_shared_timings *phy_shared_timings, 100 bool is_bonded_dsi, struct msm_dsi_phy *phy); 101 int msm_dsi_host_power_off(struct mipi_dsi_host *host); 102 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, 103 const struct drm_display_mode *mode); 104 enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, 105 const struct drm_display_mode *mode); 106 struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host); 107 unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); 108 struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host); 109 int msm_dsi_host_register(struct mipi_dsi_host *host); 110 void msm_dsi_host_unregister(struct mipi_dsi_host *host); 111 void msm_dsi_host_set_phy_mode(struct mipi_dsi_host *host, 112 struct msm_dsi_phy *src_phy); 113 int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host, 114 struct msm_dsi_phy *src_phy); 115 void msm_dsi_host_reset_phy(struct mipi_dsi_host *host); 116 void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host, 117 struct msm_dsi_phy_clk_request *clk_req, 118 bool is_bonded_dsi); 119 void msm_dsi_host_destroy(struct mipi_dsi_host *host); 120 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host, 121 struct drm_device *dev); 122 int msm_dsi_host_init(struct msm_dsi *msm_dsi); 123 int msm_dsi_runtime_suspend(struct device *dev); 124 int msm_dsi_runtime_resume(struct device *dev); 125 int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host); 126 int dsi_link_clk_set_rate_v2(struct msm_dsi_host *msm_host); 127 int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host); 128 int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host); 129 void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host); 130 void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host); 131 int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size); 132 int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size); 133 void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host); 134 void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host); 135 void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host); 136 int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova); 137 int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova); 138 int dsi_clk_init_v2(struct msm_dsi_host *msm_host); 139 int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host); 140 int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 141 int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 142 void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host); 143 void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host); 144 struct drm_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host); 145 146 /* dsi phy */ 147 struct msm_dsi_phy; 148 struct msm_dsi_phy_shared_timings { 149 u32 clk_post; 150 u32 clk_pre; 151 bool clk_pre_inc_by_2; 152 }; 153 154 struct msm_dsi_phy_clk_request { 155 unsigned long bitclk_rate; 156 unsigned long escclk_rate; 157 }; 158 159 void msm_dsi_phy_driver_register(void); 160 void msm_dsi_phy_driver_unregister(void); 161 int msm_dsi_phy_enable(struct msm_dsi_phy *phy, 162 struct msm_dsi_phy_clk_request *clk_req, 163 struct msm_dsi_phy_shared_timings *shared_timings); 164 void msm_dsi_phy_disable(struct msm_dsi_phy *phy); 165 void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy, 166 enum msm_dsi_phy_usecase uc); 167 void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy); 168 int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy); 169 void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy); 170 bool msm_dsi_phy_set_continuous_clock(struct msm_dsi_phy *phy, bool enable); 171 172 #endif /* __DSI_CONNECTOR_H__ */ 173 174