arch/arm/mach-pxa/e750_lcd.c

   1 /* e750_lcd.c
   2  *
   3  * This file contains the definitions for the LCD timings and functions
   4  * to control the LCD power / frontlighting via the w100fb driver.
   5  *
   6  * (c) 2005 Ian Molton <spyro@f2s.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 version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  */
  13
  14 #include <linux/module.h>
  15 #include <linux/device.h>
  16 #include <linux/fb.h>
  17 #include <linux/err.h>
  18 #include <linux/platform_device.h>
  19
  20 #include <asm/mach-types.h>
  21
  22 #include <video/w100fb.h>
  23
  24 static struct w100_gen_regs e750_lcd_regs = {
  25         .lcd_format =            0x00008003,
  26         .lcdd_cntl1 =            0x00000000,
  27         .lcdd_cntl2 =            0x0003ffff,
  28         .genlcd_cntl1 =          0x00fff003,
  29         .genlcd_cntl2 =          0x003c0f03,
  30         .genlcd_cntl3 =          0x000143aa,
  31 };
  32
  33 static struct w100_mode e750_lcd_mode = {
  34         .xres            = 240,
  35         .yres            = 320,
  36         .left_margin     = 21,
  37         .right_margin    = 22,
  38         .upper_margin    = 5,
  39         .lower_margin    = 4,
  40         .crtc_ss         = 0x80150014,
  41         .crtc_ls         = 0x8014000d,
  42         .crtc_gs         = 0xc1000005,
  43         .crtc_vpos_gs    = 0x00020147,
  44         .crtc_rev        = 0x0040010a,
  45         .crtc_dclk       = 0xa1700030,
  46         .crtc_gclk       = 0x80cc0015,
  47         .crtc_goe        = 0x80cc0015,
  48         .crtc_ps1_active = 0x61060017,
  49         .pll_freq        = 57,
  50         .pixclk_divider         = 4,
  51         .pixclk_divider_rotated = 4,
  52         .pixclk_src     = CLK_SRC_XTAL,
  53         .sysclk_divider  = 1,
  54         .sysclk_src     = CLK_SRC_PLL,
  55 };
  56
  57
  58 static struct w100_gpio_regs e750_w100_gpio_info = {
  59         .init_data1 = 0x01192f1b,
  60         .gpio_dir1  = 0xd5ffdeff,
  61         .gpio_oe1   = 0x000020bf,
  62         .init_data2 = 0x010f010f,
  63         .gpio_dir2  = 0xffffffff,
  64         .gpio_oe2   = 0x000001cf,
  65 };
  66
  67 static struct w100fb_mach_info e750_fb_info = {
  68         .modelist   = &e750_lcd_mode,
  69         .num_modes  = 1,
  70         .regs       = &e750_lcd_regs,
  71         .gpio       = &e750_w100_gpio_info,
  72         .xtal_freq  = 14318000,
  73         .xtal_dbl   = 1,
  74 };
  75
  76 static struct resource e750_fb_resources[] = {
  77         [0] = {
  78                 .start          = 0x0c000000,
  79                 .end            = 0x0cffffff,
  80                 .flags          = IORESOURCE_MEM,
  81         },
  82 };
  83
  84 /* ----------------------- device declarations -------------------------- */
  85
  86
  87 static struct platform_device e750_fb_device = {
  88         .name           = "w100fb",
  89         .id             = -1,
  90         .dev            = {
  91                 .platform_data  = &e750_fb_info,
  92         },
  93         .num_resources  = ARRAY_SIZE(e750_fb_resources),
  94         .resource       = e750_fb_resources,
  95 };
  96
  97 static int e750_lcd_init(void)
  98 {
  99         if (!machine_is_e750())
 100                 return -ENODEV;
 101
 102         return platform_device_register(&e750_fb_device);
 103 }
 104
 105 module_init(e750_lcd_init);
 106
 107 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
 108 MODULE_DESCRIPTION("e750 lcd driver");
 109 MODULE_LICENSE("GPLv2");