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 <linux/kernel.h>
  14
  15 #include <drm/drm_mode.h>
  16
  17 enum shmob_drm_clk_source {
  18         SHMOB_DRM_CLK_BUS,
  19         SHMOB_DRM_CLK_PERIPHERAL,
  20         SHMOB_DRM_CLK_EXTERNAL,
  21 };
  22
  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 */
  43 };
  44
  45 struct 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
  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;
  56 };
  57
  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;
  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
  77 struct 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
  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;
  89 };
  90
  91 #endif /* __SHMOB_DRM_H__ */