dsi.h (6652B)
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 24struct msm_dsi_phy_shared_timings; 25struct msm_dsi_phy_clk_request; 26 27enum 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 */ 37struct dsi_reg_entry { 38 char name[32]; 39 int enable_load; 40 int disable_load; 41}; 42 43struct dsi_reg_config { 44 int num; 45 struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX]; 46}; 47 48struct 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 */ 77struct drm_bridge *msm_dsi_manager_bridge_init(u8 id); 78void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge); 79struct drm_connector *msm_dsi_manager_connector_init(u8 id); 80struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id); 81int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg); 82bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len); 83int msm_dsi_manager_register(struct msm_dsi *msm_dsi); 84void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi); 85void msm_dsi_manager_tpg_enable(void); 86 87/* msm dsi */ 88static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi) 89{ 90 return msm_dsi->panel || msm_dsi->external_bridge; 91} 92 93struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi); 94 95/* dsi host */ 96struct msm_dsi_host; 97int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host, 98 const struct mipi_dsi_msg *msg); 99void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host, 100 const struct mipi_dsi_msg *msg); 101int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host, 102 const struct mipi_dsi_msg *msg); 103int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host, 104 const struct mipi_dsi_msg *msg); 105void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host, 106 u32 dma_base, u32 len); 107int msm_dsi_host_enable(struct mipi_dsi_host *host); 108int msm_dsi_host_disable(struct mipi_dsi_host *host); 109void msm_dsi_host_enable_irq(struct mipi_dsi_host *host); 110void msm_dsi_host_disable_irq(struct mipi_dsi_host *host); 111int msm_dsi_host_power_on(struct mipi_dsi_host *host, 112 struct msm_dsi_phy_shared_timings *phy_shared_timings, 113 bool is_bonded_dsi, struct msm_dsi_phy *phy); 114int msm_dsi_host_power_off(struct mipi_dsi_host *host); 115int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, 116 const struct drm_display_mode *mode); 117enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, 118 const struct drm_display_mode *mode); 119struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host); 120unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); 121struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host); 122int msm_dsi_host_register(struct mipi_dsi_host *host); 123void msm_dsi_host_unregister(struct mipi_dsi_host *host); 124void msm_dsi_host_set_phy_mode(struct mipi_dsi_host *host, 125 struct msm_dsi_phy *src_phy); 126int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host, 127 struct msm_dsi_phy *src_phy); 128void msm_dsi_host_reset_phy(struct mipi_dsi_host *host); 129void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host, 130 struct msm_dsi_phy_clk_request *clk_req, 131 bool is_bonded_dsi); 132void msm_dsi_host_destroy(struct mipi_dsi_host *host); 133int msm_dsi_host_modeset_init(struct mipi_dsi_host *host, 134 struct drm_device *dev); 135int msm_dsi_host_init(struct msm_dsi *msm_dsi); 136int msm_dsi_runtime_suspend(struct device *dev); 137int msm_dsi_runtime_resume(struct device *dev); 138int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host); 139int dsi_link_clk_set_rate_v2(struct msm_dsi_host *msm_host); 140int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host); 141int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host); 142void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host); 143void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host); 144int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size); 145int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size); 146void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host); 147void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host); 148void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host); 149int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova); 150int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova); 151int dsi_clk_init_v2(struct msm_dsi_host *msm_host); 152int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host); 153int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 154int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_bonded_dsi); 155void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host); 156void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host); 157struct msm_display_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host); 158 159/* dsi phy */ 160struct msm_dsi_phy; 161struct msm_dsi_phy_shared_timings { 162 u32 clk_post; 163 u32 clk_pre; 164 bool clk_pre_inc_by_2; 165}; 166 167struct msm_dsi_phy_clk_request { 168 unsigned long bitclk_rate; 169 unsigned long escclk_rate; 170}; 171 172void msm_dsi_phy_driver_register(void); 173void msm_dsi_phy_driver_unregister(void); 174int msm_dsi_phy_enable(struct msm_dsi_phy *phy, 175 struct msm_dsi_phy_clk_request *clk_req, 176 struct msm_dsi_phy_shared_timings *shared_timings); 177void msm_dsi_phy_disable(struct msm_dsi_phy *phy); 178void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy, 179 enum msm_dsi_phy_usecase uc); 180void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy); 181int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy); 182void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy); 183bool msm_dsi_phy_set_continuous_clock(struct msm_dsi_phy *phy, bool enable); 184 185#endif /* __DSI_CONNECTOR_H__ */ 186