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
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