1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2024, Fuzhou Rockchip Electronics Co., Ltd 4 * 5 * Authors: Guochun Huang <hero.huang@rock-chips.com> 6 * Heiko Stuebner <heiko.stuebner@cherry.de> 7 */ 8 9 #ifndef __DW_MIPI_DSI2__ 10 #define __DW_MIPI_DSI2__ 11 12 #include <linux/regmap.h> 13 #include <linux/types.h> 14 15 #include <drm/drm_atomic.h> 16 #include <drm/drm_bridge.h> 17 #include <drm/drm_connector.h> 18 #include <drm/drm_crtc.h> 19 #include <drm/drm_modes.h> 20 21 struct drm_display_mode; 22 struct drm_encoder; 23 struct dw_mipi_dsi2; 24 struct mipi_dsi_device; 25 struct platform_device; 26 27 enum dw_mipi_dsi2_phy_type { 28 DW_MIPI_DSI2_DPHY, 29 DW_MIPI_DSI2_CPHY, 30 }; 31 32 struct dw_mipi_dsi2_phy_iface { 33 int ppi_width; 34 enum dw_mipi_dsi2_phy_type phy_type; 35 }; 36 37 struct dw_mipi_dsi2_phy_timing { 38 u32 data_hs2lp; 39 u32 data_lp2hs; 40 }; 41 42 struct dw_mipi_dsi2_phy_ops { 43 int (*init)(void *priv_data); 44 void (*power_on)(void *priv_data); 45 void (*power_off)(void *priv_data); 46 void (*get_interface)(void *priv_data, struct dw_mipi_dsi2_phy_iface *iface); 47 int (*get_lane_mbps)(void *priv_data, 48 const struct drm_display_mode *mode, 49 unsigned long mode_flags, u32 lanes, u32 format, 50 unsigned int *lane_mbps); 51 int (*get_timing)(void *priv_data, unsigned int lane_mbps, 52 struct dw_mipi_dsi2_phy_timing *timing); 53 int (*get_esc_clk_rate)(void *priv_data, unsigned int *esc_clk_rate); 54 }; 55 56 struct dw_mipi_dsi2_host_ops { 57 int (*attach)(void *priv_data, 58 struct mipi_dsi_device *dsi); 59 int (*detach)(void *priv_data, 60 struct mipi_dsi_device *dsi); 61 }; 62 63 struct dw_mipi_dsi2_plat_data { 64 struct regmap *regmap; 65 unsigned int max_data_lanes; 66 67 enum drm_mode_status (*mode_valid)(void *priv_data, 68 const struct drm_display_mode *mode, 69 unsigned long mode_flags, 70 u32 lanes, u32 format); 71 72 bool (*mode_fixup)(void *priv_data, const struct drm_display_mode *mode, 73 struct drm_display_mode *adjusted_mode); 74 75 u32 *(*get_input_bus_fmts)(void *priv_data, 76 struct drm_bridge *bridge, 77 struct drm_bridge_state *bridge_state, 78 struct drm_crtc_state *crtc_state, 79 struct drm_connector_state *conn_state, 80 u32 output_fmt, 81 unsigned int *num_input_fmts); 82 83 const struct dw_mipi_dsi2_phy_ops *phy_ops; 84 const struct dw_mipi_dsi2_host_ops *host_ops; 85 86 void *priv_data; 87 }; 88 89 struct dw_mipi_dsi2 *dw_mipi_dsi2_probe(struct platform_device *pdev, 90 const struct dw_mipi_dsi2_plat_data *plat_data); 91 void dw_mipi_dsi2_remove(struct dw_mipi_dsi2 *dsi2); 92 int dw_mipi_dsi2_bind(struct dw_mipi_dsi2 *dsi2, struct drm_encoder *encoder); 93 void dw_mipi_dsi2_unbind(struct dw_mipi_dsi2 *dsi2); 94 95 #endif /* __DW_MIPI_DSI2__ */ 96