include/linux/platform_data/shmob_drm.h

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