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
21struct drm_display_mode;
22struct drm_encoder;
23struct dw_mipi_dsi2;
24struct mipi_dsi_device;
25struct platform_device;
26
27enum dw_mipi_dsi2_phy_type {
28 DW_MIPI_DSI2_DPHY,
29 DW_MIPI_DSI2_CPHY,
30};
31
32struct dw_mipi_dsi2_phy_iface {
33 int ppi_width;
34 enum dw_mipi_dsi2_phy_type phy_type;
35};
36
37struct dw_mipi_dsi2_phy_timing {
38 u32 data_hs2lp;
39 u32 data_lp2hs;
40};
41
42struct 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
56struct 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
63struct 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
89struct dw_mipi_dsi2 *dw_mipi_dsi2_probe(struct platform_device *pdev,
90 const struct dw_mipi_dsi2_plat_data *plat_data);
91void dw_mipi_dsi2_remove(struct dw_mipi_dsi2 *dsi2);
92int dw_mipi_dsi2_bind(struct dw_mipi_dsi2 *dsi2, struct drm_encoder *encoder);
93void dw_mipi_dsi2_unbind(struct dw_mipi_dsi2 *dsi2);
94
95#endif /* __DW_MIPI_DSI2__ */
96

source code of linux/include/drm/bridge/dw_mipi_dsi2.h