1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * shmob_drm.h -- SH Mobile DRM driver
5 * Copyright (C) 2012 Renesas Corporation
7 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
10 #ifndef __SHMOB_DRM_H__
11 #define __SHMOB_DRM_H__
13 #include <linux/kernel.h>
15 #include <drm/drm_mode.h>
17 enum shmob_drm_clk_source {
19 SHMOB_DRM_CLK_PERIPHERAL,
20 SHMOB_DRM_CLK_EXTERNAL,
23 enum 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 */
45 struct shmob_drm_backlight_data {
48 int (*get_brightness)(void);
49 int (*set_brightness)(int brightness);
52 struct 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;
58 struct 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;
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 */
77 struct shmob_drm_interface_data {
78 enum shmob_drm_interface interface;
79 struct shmob_drm_sys_interface_data sys;
84 struct 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;
91 #endif /* __SHMOB_DRM_H__ */