kernel/include/linux/platform_data/shmob_drm.h

   1 /*
   2  * shmob_drm.h  --  SH Mobile DRM driver
   3  *
   4  * Copyright (C) 2012 Renesas Corporation
   5  *
   6  * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  */
  13
  14 #ifndef __SHMOB_DRM_H__
  15 #define __SHMOB_DRM_H__
  16
  17 #include <linux/kernel.h>
  18
  19 #include <drm/drm_mode.h>
  20
  21 struct sh_mobile_meram_cfg;
  22 struct sh_mobile_meram_info;
  23
  24 enum shmob_drm_clk_source {
  25         SHMOB_DRM_CLK_BUS,
  26         SHMOB_DRM_CLK_PERIPHERAL,
  27         SHMOB_DRM_CLK_EXTERNAL,
  28 };
  29
  30 enum shmob_drm_interface {
  31         SHMOB_DRM_IFACE_RGB8,           /* 24bpp, 8:8:8 */
  32         SHMOB_DRM_IFACE_RGB9,           /* 18bpp, 9:9 */
  33         SHMOB_DRM_IFACE_RGB12A,         /* 24bpp, 12:12 */
  34         SHMOB_DRM_IFACE_RGB12B,         /* 12bpp */
  35         SHMOB_DRM_IFACE_RGB16,          /* 16bpp */
  36         SHMOB_DRM_IFACE_RGB18,          /* 18bpp */
  37         SHMOB_DRM_IFACE_RGB24,          /* 24bpp */
  38         SHMOB_DRM_IFACE_YUV422,         /* 16bpp */
  39         SHMOB_DRM_IFACE_SYS8A,          /* 24bpp, 8:8:8 */
  40         SHMOB_DRM_IFACE_SYS8B,          /* 18bpp, 8:8:2 */
  41         SHMOB_DRM_IFACE_SYS8C,          /* 18bpp, 2:8:8 */
  42         SHMOB_DRM_IFACE_SYS8D,          /* 16bpp, 8:8 */
  43         SHMOB_DRM_IFACE_SYS9,           /* 18bpp, 9:9 */
  44         SHMOB_DRM_IFACE_SYS12,          /* 24bpp, 12:12 */
  45         SHMOB_DRM_IFACE_SYS16A,         /* 16bpp */
  46         SHMOB_DRM_IFACE_SYS16B,         /* 18bpp, 16:2 */
  47         SHMOB_DRM_IFACE_SYS16C,         /* 18bpp, 2:16 */
  48         SHMOB_DRM_IFACE_SYS18,          /* 18bpp */
  49         SHMOB_DRM_IFACE_SYS24,          /* 24bpp */
  50 };
  51
  52 struct shmob_drm_backlight_data {
  53         const char *name;
  54         int max_brightness;
  55         int (*get_brightness)(void);
  56         int (*set_brightness)(int brightness);
  57 };
  58
  59 struct shmob_drm_panel_data {
  60         unsigned int width_mm;          /* Panel width in mm */
  61         unsigned int height_mm;         /* Panel height in mm */
  62         struct drm_mode_modeinfo mode;
  63 };
  64
  65 struct shmob_drm_sys_interface_data {
  66         unsigned int read_latch:6;
  67         unsigned int read_setup:8;
  68         unsigned int read_cycle:8;
  69         unsigned int read_strobe:8;
  70         unsigned int write_setup:8;
  71         unsigned int write_cycle:8;
  72         unsigned int write_strobe:8;
  73         unsigned int cs_setup:3;
  74         unsigned int vsync_active_high:1;
  75         unsigned int vsync_dir_input:1;
  76 };
  77
  78 #define SHMOB_DRM_IFACE_FL_DWPOL (1 << 0) /* Rising edge dot clock data latch */
  79 #define SHMOB_DRM_IFACE_FL_DIPOL (1 << 1) /* Active low display enable */
  80 #define SHMOB_DRM_IFACE_FL_DAPOL (1 << 2) /* Active low display data */
  81 #define SHMOB_DRM_IFACE_FL_HSCNT (1 << 3) /* Disable HSYNC during VBLANK */
  82 #define SHMOB_DRM_IFACE_FL_DWCNT (1 << 4) /* Disable dotclock during blanking */
  83
  84 struct shmob_drm_interface_data {
  85         enum shmob_drm_interface interface;
  86         struct shmob_drm_sys_interface_data sys;
  87         unsigned int clk_div;
  88         unsigned int flags;
  89 };
  90
  91 struct shmob_drm_platform_data {
  92         enum shmob_drm_clk_source clk_source;
  93         struct shmob_drm_interface_data iface;
  94         struct shmob_drm_panel_data panel;
  95         struct shmob_drm_backlight_data backlight;
  96         const struct sh_mobile_meram_cfg *meram;
  97 };
  98
  99 #endif /* __SHMOB_DRM_H__ */