1 /* 2 * Copyright (c) 2015, The Linux Foundation. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 and 6 * only version 2 as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 */ 13 14 #ifndef __DSI_CONNECTOR_H__ 15 #define __DSI_CONNECTOR_H__ 16 17 #include <linux/of_platform.h> 18 #include <linux/platform_device.h> 19 20 #include "drm_crtc.h" 21 #include "drm_mipi_dsi.h" 22 #include "drm_panel.h" 23 24 #include "msm_drv.h" 25 26 #define DSI_0 0 27 #define DSI_1 1 28 #define DSI_MAX 2 29 30 enum msm_dsi_phy_type { 31 MSM_DSI_PHY_28NM_HPM, 32 MSM_DSI_PHY_28NM_LP, 33 MSM_DSI_PHY_20NM, 34 MSM_DSI_PHY_MAX 35 }; 36 37 #define DSI_DEV_REGULATOR_MAX 8 38 39 /* Regulators for DSI devices */ 40 struct dsi_reg_entry { 41 char name[32]; 42 int min_voltage; 43 int max_voltage; 44 int enable_load; 45 int disable_load; 46 }; 47 48 struct dsi_reg_config { 49 int num; 50 struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX]; 51 }; 52 53 struct msm_dsi { 54 struct drm_device *dev; 55 struct platform_device *pdev; 56 57 struct drm_connector *connector; 58 struct drm_bridge *bridge; 59 60 struct mipi_dsi_host *host; 61 struct msm_dsi_phy *phy; 62 struct drm_panel *panel; 63 unsigned long panel_flags; 64 65 struct device *phy_dev; 66 bool phy_enabled; 67 68 /* the encoders we are hooked to (outside of dsi block) */ 69 struct drm_encoder *encoders[MSM_DSI_ENCODER_NUM]; 70 71 int id; 72 }; 73 74 /* dsi manager */ 75 struct drm_bridge *msm_dsi_manager_bridge_init(u8 id); 76 void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge); 77 struct drm_connector *msm_dsi_manager_connector_init(u8 id); 78 int msm_dsi_manager_phy_enable(int id, 79 const unsigned long bit_rate, const unsigned long esc_rate, 80 u32 *clk_pre, u32 *clk_post); 81 void msm_dsi_manager_phy_disable(int id); 82 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg); 83 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 iova, u32 len); 84 int msm_dsi_manager_register(struct msm_dsi *msm_dsi); 85 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi); 86 87 /* msm dsi */ 88 struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi); 89 90 /* dsi pll */ 91 struct msm_dsi_pll; 92 #ifdef CONFIG_DRM_MSM_DSI_PLL 93 struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev, 94 enum msm_dsi_phy_type type, int dsi_id); 95 void msm_dsi_pll_destroy(struct msm_dsi_pll *pll); 96 int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll, 97 struct clk **byte_clk_provider, struct clk **pixel_clk_provider); 98 #else 99 static inline struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev, 100 enum msm_dsi_phy_type type, int id) { 101 return ERR_PTR(-ENODEV); 102 } 103 static inline void msm_dsi_pll_destroy(struct msm_dsi_pll *pll) 104 { 105 } 106 static inline int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll, 107 struct clk **byte_clk_provider, struct clk **pixel_clk_provider) 108 { 109 return -ENODEV; 110 } 111 #endif 112 113 /* dsi host */ 114 int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host, 115 const struct mipi_dsi_msg *msg); 116 void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host, 117 const struct mipi_dsi_msg *msg); 118 int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host, 119 const struct mipi_dsi_msg *msg); 120 int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host, 121 const struct mipi_dsi_msg *msg); 122 void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host, 123 u32 iova, u32 len); 124 int msm_dsi_host_enable(struct mipi_dsi_host *host); 125 int msm_dsi_host_disable(struct mipi_dsi_host *host); 126 int msm_dsi_host_power_on(struct mipi_dsi_host *host); 127 int msm_dsi_host_power_off(struct mipi_dsi_host *host); 128 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, 129 struct drm_display_mode *mode); 130 struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host, 131 unsigned long *panel_flags); 132 int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer); 133 void msm_dsi_host_unregister(struct mipi_dsi_host *host); 134 int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host, 135 struct msm_dsi_pll *src_pll); 136 void msm_dsi_host_destroy(struct mipi_dsi_host *host); 137 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host, 138 struct drm_device *dev); 139 int msm_dsi_host_init(struct msm_dsi *msm_dsi); 140 141 /* dsi phy */ 142 struct msm_dsi_phy; 143 void msm_dsi_phy_driver_register(void); 144 void msm_dsi_phy_driver_unregister(void); 145 int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id, 146 const unsigned long bit_rate, const unsigned long esc_rate); 147 int msm_dsi_phy_disable(struct msm_dsi_phy *phy); 148 void msm_dsi_phy_get_clk_pre_post(struct msm_dsi_phy *phy, 149 u32 *clk_pre, u32 *clk_post); 150 struct msm_dsi_pll *msm_dsi_phy_get_pll(struct msm_dsi_phy *phy); 151 152 #endif /* __DSI_CONNECTOR_H__ */ 153 154