arch/arm/mach-pxa/eseries/e750_lcd.c

   1 /* e750_lcd.c
   2  *
   3  * (c) Ian Molton 2005
   4  *
   5  * This file contains the definitions for the LCD timings and functions
   6  * to control the LCD power / frontlighting via the w100fb driver.
   7  *
   8  */
   9
  10 #include <linux/module.h>
  11 #include <linux/init.h>
  12 #include <linux/kernel.h>
  13 #include <linux/tty.h>
  14 #include <linux/sched.h>
  15 #include <linux/delay.h>
  16 #include <linux/pm.h>
  17 #include <linux/lcd.h>
  18 #include <linux/backlight.h>
  19 #include <linux/fb.h>
  20 #include <linux/err.h>
  21 #include <linux/platform_device.h>
  22
  23
  24 #include <asm/mach-types.h>
  25 #include <asm/hardware.h>
  26 #include <asm/setup.h>
  27
  28 #include <asm/mach/arch.h>
  29 #include <asm/arch/pxa-regs.h>
  30 #include <asm/arch/eseries-gpio.h>
  31
  32 #include <video/w100fb.h>
  33
  34 static struct w100_gen_regs e750_lcd_regs = {
  35         .lcd_format =            0x00008003,
  36         .lcdd_cntl1 =            0x00000000,
  37         .lcdd_cntl2 =            0x0003ffff,
  38         .genlcd_cntl1 =          0x00fff003,
  39         .genlcd_cntl2 =          0x003c0f03,
  40         .genlcd_cntl3 =          0x000143aa,
  41 };
  42
  43 static struct w100_mode e750_lcd_mode = {
  44         .xres            = 240,
  45         .yres            = 320,
  46 //      .bpp = 16,
  47         .left_margin     = 21,
  48         .right_margin    = 22,
  49         .upper_margin    = 5,
  50         .lower_margin    = 4,
  51         .crtc_ss         = 0x80150014,
  52         .crtc_ls         = 0x8014000d,
  53         .crtc_gs         = 0xc1000005,
  54         .crtc_vpos_gs    = 0x00020147,
  55         .crtc_rev        = 0x0040010a,
  56         .crtc_dclk       = 0xa1700030,
  57         .crtc_gclk       = 0x80cc0015,
  58         .crtc_goe        = 0x80cc0015,
  59         .crtc_ps1_active = 0x61060017,
  60         .pll_freq        = 57,
  61         .pixclk_divider         = 4,
  62         .pixclk_divider_rotated = 4,
  63         .pixclk_src     = CLK_SRC_XTAL,
  64         .sysclk_divider  = 1,
  65         .sysclk_src     = CLK_SRC_PLL,
  66 };
  67
  68
  69 static struct w100_gpio_regs e750_w100_gpio_info = {
  70         .init_data1 = 0x01192f1b,
  71         .gpio_dir1  = 0xd5ffdeff,
  72         .gpio_oe1   = 0x000020bf,
  73         .init_data2 = 0x010f010f,
  74         .gpio_dir2  = 0xffffffff,
  75         .gpio_oe2   = 0x000001cf,
  76 };
  77
  78 static struct w100fb_mach_info e750_fb_info = {
  79         .modelist   = &e750_lcd_mode,
  80         .num_modes  = 1,
  81         .regs       = &e750_lcd_regs,
  82         .gpio       = &e750_w100_gpio_info,
  83         .xtal_freq  = 14318000,
  84         .xtal_dbl   = 1,
  85 };
  86
  87 static struct resource e750_fb_resources[] = {
  88         [0] = {
  89                 .start          = 0x0c000000,
  90                 .end            = 0x0cffffff,
  91                 .flags          = IORESOURCE_MEM,
  92         },
  93 };
  94
  95 /* ----------------------- device declarations -------------------------- */
  96
  97
  98 static struct platform_device e750_fb_device = {
  99         .name           = "w100fb",
 100         .id             = -1,
 101         .dev            = {
 102                 .platform_data  = &e750_fb_info,
 103         },
 104         .num_resources  = ARRAY_SIZE(e750_fb_resources),
 105         .resource       = e750_fb_resources,
 106 };
 107
 108 #if 0
 109 static struct platform_device e750_lcd_hook_device = {
 110         .name = "e750-lcd-hook",
 111         .dev = {
 112                 .parent = &e750_fb_device.dev,
 113         },
 114         .id = -1,
 115 };
 116 #endif
 117
 118 static int e750_lcd_init (void) {
 119         int ret;
 120
 121         if (!machine_is_e750 ())
 122                 return -ENODEV;
 123
 124         if((ret = platform_device_register(&e750_fb_device)))
 125                 return ret;
 126
 127 //      platform_device_register(&e750_lcd_hook_device);
 128
 129         return 0;
 130 }
 131
 132 static void e750_lcd_exit (void)
 133 {
 134         //FIXME - free the platform dev for the w100 (imageon)
 135 }
 136
 137 module_init (e750_lcd_init);
 138 module_exit (e750_lcd_exit);
 139
 140 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
 141 MODULE_DESCRIPTION("e750 lcd driver");
 142 MODULE_LICENSE("GPLv2");