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 const char *te_source; 41 42 struct drm_bridge *next_bridge; 43 44 struct device *phy_dev; 45 bool phy_enabled; 46 47 int id; 48 }; 49 50 /* dsi manager */ 51 int msm_dsi_manager_connector_init(struct msm_dsi *msm_dsi, 52 struct drm_encoder *encoder); 53 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg); 54 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len); 55 int msm_dsi_manager_register(struct msm_dsi *msm_dsi); 56 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi); 57 void msm_dsi_manager_tpg_enable(void); 58 59 /* dsi host */ 60 struct msm_dsi_host; 61 int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host, 62 const struct mipi_dsi_msg *msg); 63 void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host, 64 const struct mipi_dsi_msg *msg); 65 int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host, 66 const struct mipi_dsi_msg *msg); 67 int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host, 68 const struct mipi_dsi_msg *msg); 69 void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host, 70 u32 dma_base, u32 len); 71 int msm_dsi_host_enable(struct mipi_dsi_host *host); 72 int msm_dsi_host_disable(struct mipi_dsi_host *host); 73 void msm_dsi_host_enable_irq(struct mipi_dsi_host *host); 74 void msm_dsi_host_disable_irq(struct mipi_dsi_host *host); 75 int msm_dsi_host_power_on(struct mipi_dsi_host *host, 76 struct msm_dsi_phy_shared_timings *phy_shared_timings, 77 bool is_bonded_dsi, struct msm_dsi_phy *phy); 78 int msm_dsi_host_power_off(struct mipi_dsi_host *host); 79 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, 80 const struct drm_display_mode *mode); 81 enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, 82 const struct drm_display_mode *mode); 83 unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); 84 int msm_dsi_host_register(struct mipi_dsi_host *host); 85 void msm_dsi_host_unregister(struct mipi_dsi_host *host); 86 void msm_dsi_host_set_phy_mode(struct mipi_dsi_host *host, 87 struct msm_dsi_phy *src_phy); 88 int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host, 89 struct msm_dsi_phy *src_phy); 90 void msm_dsi_host_reset_phy(struct mipi_dsi_host *host); 91 void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host, 92 struct msm_dsi_phy_clk_request *clk_req, 93 bool is_bonded_dsi); 94 void msm_dsi_host_destroy(struct mipi_dsi_host *host); 95 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host, 96 struct drm_device *dev); 97 int msm_dsi_host_init(struct msm_dsi *msm_dsi); 98 int msm_dsi_runtime_suspend(struct device *dev); 99 int msm_dsi_runtime_resume(struct device *dev); 100 int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host); 101 int dsi_link_clk_set_rate_v2(struct msm_dsi_host *msm_host); 102 int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host); 103 int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host); 104 void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host); 105 void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host); 106 unsigned long dsi_byte_clk_get_rate(struct mipi_dsi_host *host, bool is_bonded_dsi, 107 const struct drm_display_mode *mode); 108 int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size); 109 int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size); 110 void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host); 111 void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host); 112 void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host); 113 void msm_dsi_tx_buf_free(struct mipi_dsi_host *mipi_host); 114 int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova); 115 int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova); 116 int dsi_clk_init_v2(struct msm_dsi_host *msm_host); 117 int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host); 118 int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 119 int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 120 void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host); 121 void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host); 122 struct drm_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host); 123 bool msm_dsi_host_is_wide_bus_enabled(struct mipi_dsi_host *host); 124 125 /* dsi phy */ 126 struct msm_dsi_phy; 127 struct msm_dsi_phy_shared_timings { 128 u32 clk_post; 129 u32 clk_pre; 130 bool clk_pre_inc_by_2; 131 bool byte_intf_clk_div_2; 132 }; 133 134 struct msm_dsi_phy_clk_request { 135 unsigned long bitclk_rate; 136 unsigned long escclk_rate; 137 }; 138 139 void msm_dsi_phy_driver_register(void); 140 void msm_dsi_phy_driver_unregister(void); 141 int msm_dsi_phy_enable(struct msm_dsi_phy *phy, 142 struct msm_dsi_phy_clk_request *clk_req, 143 struct msm_dsi_phy_shared_timings *shared_timings); 144 void msm_dsi_phy_disable(struct msm_dsi_phy *phy); 145 void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy, 146 enum msm_dsi_phy_usecase uc); 147 void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy); 148 int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy); 149 void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy); 150 bool msm_dsi_phy_set_continuous_clock(struct msm_dsi_phy *phy, bool enable); 151 152 #endif /* __DSI_CONNECTOR_H__ */ 153 154