1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) STMicroelectronics SA 2017 4 * 5 * Authors: Philippe Cornu <philippe.cornu@st.com> 6 * Yannick Fertre <yannick.fertre@st.com> 7 */ 8 9 #ifndef __DW_MIPI_DSI__ 10 #define __DW_MIPI_DSI__ 11 12 #include <linux/types.h> 13 14 #include <drm/drm_atomic.h> 15 #include <drm/drm_bridge.h> 16 #include <drm/drm_connector.h> 17 #include <drm/drm_crtc.h> 18 #include <drm/drm_modes.h> 19 20 struct drm_display_mode; 21 struct drm_encoder; 22 struct dw_mipi_dsi; 23 struct mipi_dsi_device; 24 struct platform_device; 25 26 struct dw_mipi_dsi_dphy_timing { 27 u16 data_hs2lp; 28 u16 data_lp2hs; 29 u16 clk_hs2lp; 30 u16 clk_lp2hs; 31 }; 32 33 struct dw_mipi_dsi_phy_ops { 34 int (*init)(void *priv_data); 35 void (*power_on)(void *priv_data); 36 void (*power_off)(void *priv_data); 37 int (*get_lane_mbps)(void *priv_data, 38 const struct drm_display_mode *mode, 39 unsigned long mode_flags, u32 lanes, u32 format, 40 unsigned int *lane_mbps); 41 int (*get_timing)(void *priv_data, unsigned int lane_mbps, 42 struct dw_mipi_dsi_dphy_timing *timing); 43 int (*get_esc_clk_rate)(void *priv_data, unsigned int *esc_clk_rate); 44 }; 45 46 struct dw_mipi_dsi_host_ops { 47 int (*attach)(void *priv_data, 48 struct mipi_dsi_device *dsi); 49 int (*detach)(void *priv_data, 50 struct mipi_dsi_device *dsi); 51 }; 52 53 struct dw_mipi_dsi_plat_data { 54 void __iomem *base; 55 unsigned int max_data_lanes; 56 57 enum drm_mode_status (*mode_valid)(void *priv_data, 58 const struct drm_display_mode *mode, 59 unsigned long mode_flags, 60 u32 lanes, u32 format); 61 62 bool (*mode_fixup)(void *priv_data, const struct drm_display_mode *mode, 63 struct drm_display_mode *adjusted_mode); 64 65 u32 *(*get_input_bus_fmts)(void *priv_data, 66 struct drm_bridge *bridge, 67 struct drm_bridge_state *bridge_state, 68 struct drm_crtc_state *crtc_state, 69 struct drm_connector_state *conn_state, 70 u32 output_fmt, 71 unsigned int *num_input_fmts); 72 73 const struct dw_mipi_dsi_phy_ops *phy_ops; 74 const struct dw_mipi_dsi_host_ops *host_ops; 75 76 void *priv_data; 77 }; 78 79 struct dw_mipi_dsi *dw_mipi_dsi_probe(struct platform_device *pdev, 80 const struct dw_mipi_dsi_plat_data 81 *plat_data); 82 void dw_mipi_dsi_remove(struct dw_mipi_dsi *dsi); 83 int dw_mipi_dsi_bind(struct dw_mipi_dsi *dsi, struct drm_encoder *encoder); 84 void dw_mipi_dsi_unbind(struct dw_mipi_dsi *dsi); 85 void dw_mipi_dsi_set_slave(struct dw_mipi_dsi *dsi, struct dw_mipi_dsi *slave); 86 struct drm_bridge *dw_mipi_dsi_get_bridge(struct dw_mipi_dsi *dsi); 87 88 #endif /* __DW_MIPI_DSI__ */ 89