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1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * shmob_drm.h -- SH Mobile DRM driver
4 *
5 * Copyright (C) 2012 Renesas Corporation
6 *
7 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
8 */
9
10#ifndef __SHMOB_DRM_H__
11#define __SHMOB_DRM_H__
12
13#include <linux/kernel.h>
14
15#include <drm/drm_mode.h>
16
17enum shmob_drm_clk_source {
18 SHMOB_DRM_CLK_BUS,
19 SHMOB_DRM_CLK_PERIPHERAL,
20 SHMOB_DRM_CLK_EXTERNAL,
21};
22
23enum shmob_drm_interface {
24 SHMOB_DRM_IFACE_RGB8, /* 24bpp, 8:8:8 */
25 SHMOB_DRM_IFACE_RGB9, /* 18bpp, 9:9 */
26 SHMOB_DRM_IFACE_RGB12A, /* 24bpp, 12:12 */
27 SHMOB_DRM_IFACE_RGB12B, /* 12bpp */
28 SHMOB_DRM_IFACE_RGB16, /* 16bpp */
29 SHMOB_DRM_IFACE_RGB18, /* 18bpp */
30 SHMOB_DRM_IFACE_RGB24, /* 24bpp */
31 SHMOB_DRM_IFACE_YUV422, /* 16bpp */
32 SHMOB_DRM_IFACE_SYS8A, /* 24bpp, 8:8:8 */
33 SHMOB_DRM_IFACE_SYS8B, /* 18bpp, 8:8:2 */
34 SHMOB_DRM_IFACE_SYS8C, /* 18bpp, 2:8:8 */
35 SHMOB_DRM_IFACE_SYS8D, /* 16bpp, 8:8 */
36 SHMOB_DRM_IFACE_SYS9, /* 18bpp, 9:9 */
37 SHMOB_DRM_IFACE_SYS12, /* 24bpp, 12:12 */
38 SHMOB_DRM_IFACE_SYS16A, /* 16bpp */
39 SHMOB_DRM_IFACE_SYS16B, /* 18bpp, 16:2 */
40 SHMOB_DRM_IFACE_SYS16C, /* 18bpp, 2:16 */
41 SHMOB_DRM_IFACE_SYS18, /* 18bpp */
42 SHMOB_DRM_IFACE_SYS24, /* 24bpp */
43};
44
45struct shmob_drm_backlight_data {
46 const char *name;
47 int max_brightness;
48 int (*get_brightness)(void);
49 int (*set_brightness)(int brightness);
50};
51
52struct shmob_drm_panel_data {
53 unsigned int width_mm; /* Panel width in mm */
54 unsigned int height_mm; /* Panel height in mm */
55 struct drm_mode_modeinfo mode;
56};
57
58struct shmob_drm_sys_interface_data {
59 unsigned int read_latch:6;
60 unsigned int read_setup:8;
61 unsigned int read_cycle:8;
62 unsigned int read_strobe:8;
63 unsigned int write_setup:8;
64 unsigned int write_cycle:8;
65 unsigned int write_strobe:8;
66 unsigned int cs_setup:3;
67 unsigned int vsync_active_high:1;
68 unsigned int vsync_dir_input:1;
69};
70
71#define SHMOB_DRM_IFACE_FL_DWPOL (1 << 0) /* Rising edge dot clock data latch */
72#define SHMOB_DRM_IFACE_FL_DIPOL (1 << 1) /* Active low display enable */
73#define SHMOB_DRM_IFACE_FL_DAPOL (1 << 2) /* Active low display data */
74#define SHMOB_DRM_IFACE_FL_HSCNT (1 << 3) /* Disable HSYNC during VBLANK */
75#define SHMOB_DRM_IFACE_FL_DWCNT (1 << 4) /* Disable dotclock during blanking */
76
77struct shmob_drm_interface_data {
78 enum shmob_drm_interface interface;
79 struct shmob_drm_sys_interface_data sys;
80 unsigned int clk_div;
81 unsigned int flags;
82};
83
84struct shmob_drm_platform_data {
85 enum shmob_drm_clk_source clk_source;
86 struct shmob_drm_interface_data iface;
87 struct shmob_drm_panel_data panel;
88 struct shmob_drm_backlight_data backlight;
89};
90
91#endif /* __SHMOB_DRM_H__ */