text: /*
   * BRIEF MODULE DESCRIPTION
   *	Au1200 LCD Driver.
   *
   * Copyright 2004-2005 AMD
   * Author: AMD
   *
   * Based on:
   * linux/drivers/video/skeletonfb.c -- Skeleton for a frame buffer device
   *  Created 28 Dec 1997 by Geert Uytterhoeven
   *
   *  This program is free software; you can redistribute	 it and/or modify it
   *  under  the terms of	 the GNU General  Public License as published by the
   *  Free Software Foundation;  either version 2 of the	License, or (at your
   *  option) any later version.
   *
   *  THIS  SOFTWARE  IS PROVIDED	  ``AS	IS'' AND   ANY	EXPRESS OR IMPLIED
   *  WARRANTIES,	  INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
   *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
   *  NO	EVENT  SHALL   THE AUTHOR  BE	 LIABLE FOR ANY	  DIRECT, INDIRECT,
   *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   *  NOT LIMITED	  TO, PROCUREMENT OF  SUBSTITUTE GOODS	OR SERVICES; LOSS OF
   *  USE, DATA,	OR PROFITS; OR	BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
   *  ANY THEORY OF LIABILITY, WHETHER IN	 CONTRACT, STRICT LIABILITY, OR TORT
   *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   *  You should have received a copy of the  GNU General Public License along
   *  with this program; if not, write  to the Free Software Foundation, Inc.,
   *  675 Mass Ave, Cambridge, MA 02139, USA.
   */
  
  #include <linux/clk.h>
  #include <linux/module.h>
  #include <linux/platform_device.h>
  #include <linux/kernel.h>
  #include <linux/errno.h>
  #include <linux/string.h>
  #include <linux/mm.h>
  #include <linux/fb.h>
  #include <linux/init.h>
  #include <linux/interrupt.h>
  #include <linux/ctype.h>
  #include <linux/dma-mapping.h>
  #include <linux/slab.h>
  #include <linux/uaccess.h>
  
  #include <asm/mach-au1x00/au1000.h>
  #include <asm/mach-au1x00/au1200fb.h>	/* platform_data */
  #include "au1200fb.h"
  
  #define DRIVER_NAME "au1200fb"
  #define DRIVER_DESC "LCD controller driver for AU1200 processors"
  
  #define DEBUG 0
  
  #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
  #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg)
  #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg)
  
  #if DEBUG
  #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg)
  #else
  #define print_dbg(f, arg...) do {} while (0)
  #endif
  
  
  #define AU1200_LCD_FB_IOCTL 0x46FF
  
  #define AU1200_LCD_SET_SCREEN 1
  #define AU1200_LCD_GET_SCREEN 2
  #define AU1200_LCD_SET_WINDOW 3
  #define AU1200_LCD_GET_WINDOW 4
  #define AU1200_LCD_SET_PANEL  5
  #define AU1200_LCD_GET_PANEL  6
  
  #define SCREEN_SIZE		    (1<< 1)
  #define SCREEN_BACKCOLOR    (1<< 2)
  #define SCREEN_BRIGHTNESS   (1<< 3)
  #define SCREEN_COLORKEY     (1<< 4)
  #define SCREEN_MASK         (1<< 5)
  
  struct au1200_lcd_global_regs_t {
  	unsigned int flags;
  	unsigned int xsize;
  	unsigned int ysize;
  	unsigned int backcolor;
  	unsigned int brightness;
  	unsigned int colorkey;
  	unsigned int mask;
  	unsigned int panel_choice;
  	char panel_desc[80];
  
  };
  
  #define WIN_POSITION            (1<< 0)
  #define WIN_ALPHA_COLOR         (1<< 1)
  #define WIN_ALPHA_MODE          (1<< 2)
  #define WIN_PRIORITY            (1<< 3)
  #define WIN_CHANNEL             (1<< 4)
  #define WIN_BUFFER_FORMAT       (1<< 5)
  #define WIN_COLOR_ORDER         (1<< 6)
  #define WIN_PIXEL_ORDER         (1<< 7)
  #define WIN_SIZE                (1<< 8)
  #define WIN_COLORKEY_MODE       (1<< 9)
  #define WIN_DOUBLE_BUFFER_MODE  (1<< 10)
  #define WIN_RAM_ARRAY_MODE      (1<< 11)
  #define WIN_BUFFER_SCALE        (1<< 12)
  #define WIN_ENABLE	            (1<< 13)
  
  struct au1200_lcd_window_regs_t {
  	unsigned int flags;
  	unsigned int xpos;
  	unsigned int ypos;
  	unsigned int alpha_color;
  	unsigned int alpha_mode;
  	unsigned int priority;
  	unsigned int channel;
  	unsigned int buffer_format;
  	unsigned int color_order;
  	unsigned int pixel_order;
  	unsigned int xsize;
  	unsigned int ysize;
  	unsigned int colorkey_mode;
  	unsigned int double_buffer_mode;
  	unsigned int ram_array_mode;
  	unsigned int xscale;
  	unsigned int yscale;
  	unsigned int enable;
  };
  
  
  struct au1200_lcd_iodata_t {
  	unsigned int subcmd;
  	struct au1200_lcd_global_regs_t global;
  	struct au1200_lcd_window_regs_t window;
  };
  
  #if defined(__BIG_ENDIAN)
  #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11
  #else
  #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00
  #endif
  #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565
  
  /* Private, per-framebuffer management information (independent of the panel itself) */
  struct au1200fb_device {
  	struct fb_info *fb_info;		/* FB driver info record */
  	struct au1200fb_platdata *pd;
  
  	int					plane;
  	unsigned char* 		fb_mem;		/* FrameBuffer memory map */
  	unsigned int		fb_len;
  	dma_addr_t    		fb_phys;
  };
  
  /********************************************************************/
  
  /* LCD controller restrictions */
  #define AU1200_LCD_MAX_XRES	1280
  #define AU1200_LCD_MAX_YRES	1024
  #define AU1200_LCD_MAX_BPP	32
  #define AU1200_LCD_MAX_CLK	96000000 /* fixme: this needs to go away ? */
  #define AU1200_LCD_NBR_PALETTE_ENTRIES 256
  
  /* Default number of visible screen buffer to allocate */
  #define AU1200FB_NBR_VIDEO_BUFFERS 1
  
  /* Default maximum number of fb devices to create */
  #define MAX_DEVICE_COUNT	4
  
  /* Default window configuration entry to use (see windows[]) */
  #define DEFAULT_WINDOW_INDEX	2
  
  /********************************************************************/
  
  static struct fb_info *_au1200fb_infos[MAX_DEVICE_COUNT];
  static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR;
  static int device_count = MAX_DEVICE_COUNT;
  static int window_index = DEFAULT_WINDOW_INDEX;	/* default is zero */
  static int panel_index = 2; /* default is zero */
  static struct window_settings *win;
  static struct panel_settings *panel;
  static int noblanking = 1;
  static int nohwcursor = 0;
  
  struct window_settings {
  	unsigned char name[64];
  	uint32 mode_backcolor;
  	uint32 mode_colorkey;
  	uint32 mode_colorkeymsk;
  	struct {
  		int xres;
  		int yres;
  		int xpos;
  		int ypos;
  		uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */
  		uint32 mode_winenable;
  	} w[4];
  };
  
  #if defined(__BIG_ENDIAN)
  #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00
  #else
  #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01
  #endif
  
  /*
   * Default window configurations
   */
  static struct window_settings windows[] = {
  	{ /* Index 0 */
  		"0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
  		/* mode_backcolor	*/ 0x006600ff,
  		/* mode_colorkey,msk*/ 0, 0,
  		{
  			{
  			/* xres, yres, xpos, ypos */ 0, 0, 0, 0,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
  				LCD_WINCTRL1_PO_16BPP,
  			/* mode_winenable*/ LCD_WINENABLE_WEN0,
  			},
  			{
  			/* xres, yres, xpos, ypos */ 100, 100, 100, 100,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
  				LCD_WINCTRL1_PO_16BPP |
  				LCD_WINCTRL1_PIPE,
  			/* mode_winenable*/ LCD_WINENABLE_WEN1,
  			},
  			{
  			/* xres, yres, xpos, ypos */ 0, 0, 0, 0,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
  				LCD_WINCTRL1_PO_16BPP,
  			/* mode_winenable*/ 0,
  			},
  			{
  			/* xres, yres, xpos, ypos */ 0, 0, 0, 0,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
  				LCD_WINCTRL1_PO_16BPP |
  				LCD_WINCTRL1_PIPE,
  			/* mode_winenable*/ 0,
  			},
  		},
  	},
  
  	{ /* Index 1 */
  		"0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
  		/* mode_backcolor	*/ 0x006600ff,
  		/* mode_colorkey,msk*/ 0, 0,
  		{
  			{
  			/* xres, yres, xpos, ypos */ 320, 240, 5, 5,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP |
  				LCD_WINCTRL1_PO_00,
  			/* mode_winenable*/ LCD_WINENABLE_WEN0,
  			},
  			{
  			/* xres, yres, xpos, ypos */ 0, 0, 0, 0,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565
  				| LCD_WINCTRL1_PO_16BPP,
  			/* mode_winenable*/ 0,
  			},
  			{
  			/* xres, yres, xpos, ypos */ 100, 100, 0, 0,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
  				LCD_WINCTRL1_PO_16BPP |
  				LCD_WINCTRL1_PIPE,
  			/* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
  			},
  			{
  			/* xres, yres, xpos, ypos */ 200, 25, 0, 0,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
  				LCD_WINCTRL1_PO_16BPP |
  				LCD_WINCTRL1_PIPE,
  			/* mode_winenable*/ 0,
  			},
  		},
  	},
  	{ /* Index 2 */
  		"0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
  		/* mode_backcolor	*/ 0x006600ff,
  		/* mode_colorkey,msk*/ 0, 0,
  		{
  			{
  			/* xres, yres, xpos, ypos */ 0, 0, 0, 0,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
  				LCD_WINCTRL1_PO_16BPP,
  			/* mode_winenable*/ LCD_WINENABLE_WEN0,
  			},
  			{
  			/* xres, yres, xpos, ypos */ 0, 0, 0, 0,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
  				LCD_WINCTRL1_PO_16BPP,
  			/* mode_winenable*/ 0,
  			},
  			{
  			/* xres, yres, xpos, ypos */ 0, 0, 0, 0,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP |
  				LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE,
  			/* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
  			},
  			{
  			/* xres, yres, xpos, ypos */ 0, 0, 0, 0,
  			/* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
  				LCD_WINCTRL1_PO_16BPP |
  				LCD_WINCTRL1_PIPE,
  			/* mode_winenable*/ 0,
  			},
  		},
  	},
  	/* Need VGA 640 @ 24bpp, @ 32bpp */
  	/* Need VGA 800 @ 24bpp, @ 32bpp */
  	/* Need VGA 1024 @ 24bpp, @ 32bpp */
  };
  
  /*
   * Controller configurations for various panels.
   */
  
  struct panel_settings
  {
  	const char name[25];		/* Full name <vendor>_<model> */
  
  	struct 	fb_monspecs monspecs; 	/* FB monitor specs */
  
  	/* panel timings */
  	uint32 mode_screen;
  	uint32 mode_horztiming;
  	uint32 mode_verttiming;
  	uint32 mode_clkcontrol;
  	uint32 mode_pwmdiv;
  	uint32 mode_pwmhi;
  	uint32 mode_outmask;
  	uint32 mode_fifoctrl;
  	uint32 mode_backlight;
  	uint32 lcdclk;
  #define Xres min_xres
  #define Yres min_yres
  	u32	min_xres;		/* Minimum horizontal resolution */
  	u32	max_xres;		/* Maximum horizontal resolution */
  	u32 	min_yres;		/* Minimum vertical resolution */
  	u32 	max_yres;		/* Maximum vertical resolution */
  };
  
  /********************************************************************/
  /* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */
  
  /* List of panels known to work with the AU1200 LCD controller.
   * To add a new panel, enter the same specifications as the
   * Generic_TFT one, and MAKE SURE that it doesn't conflicts
   * with the controller restrictions. Restrictions are:
   *
   * STN color panels: max_bpp <= 12
   * STN mono panels: max_bpp <= 4
   * TFT panels: max_bpp <= 16
   * max_xres <= 800
   * max_yres <= 600
   */
  static struct panel_settings known_lcd_panels[] =
  {
  	[0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */
  		.name = "QVGA_320x240",
  		.monspecs = {
  			.modedb = NULL,
  			.modedb_len = 0,
  			.hfmin = 30000,
  			.hfmax = 70000,
  			.vfmin = 60,
  			.vfmax = 60,
  			.dclkmin = 6000000,
  			.dclkmax = 28000000,
  			.input = FB_DISP_RGB,
  		},
  		.mode_screen		= LCD_SCREEN_SX_N(320) |
  			LCD_SCREEN_SY_N(240),
  		.mode_horztiming	= 0x00c4623b,
  		.mode_verttiming	= 0x00502814,
  		.mode_clkcontrol	= 0x00020002, /* /4=24Mhz */
  		.mode_pwmdiv		= 0x00000000,
  		.mode_pwmhi		= 0x00000000,
  		.mode_outmask	= 0x00FFFFFF,
  		.mode_fifoctrl	= 0x2f2f2f2f,
  		.mode_backlight	= 0x00000000,
  		.lcdclk		= 96,
  		320, 320,
  		240, 240,
  	},
  
  	[1] = { /* VGA 640x480 H:30.3kHz V:58Hz */
  		.name = "VGA_640x480",
  		.monspecs = {
  			.modedb = NULL,
  			.modedb_len = 0,
  			.hfmin = 30000,
  			.hfmax = 70000,
  			.vfmin = 60,
  			.vfmax = 60,
  			.dclkmin = 6000000,
  			.dclkmax = 28000000,
  			.input = FB_DISP_RGB,
  		},
  		.mode_screen		= 0x13f9df80,
  		.mode_horztiming	= 0x003c5859,
  		.mode_verttiming	= 0x00741201,
  		.mode_clkcontrol	= 0x00020001, /* /4=24Mhz */
  		.mode_pwmdiv		= 0x00000000,
  		.mode_pwmhi		= 0x00000000,
  		.mode_outmask	= 0x00FFFFFF,
  		.mode_fifoctrl	= 0x2f2f2f2f,
  		.mode_backlight	= 0x00000000,
  		.lcdclk		= 96,
  		640, 480,
  		640, 480,
  	},
  
  	[2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */
  		.name = "SVGA_800x600",
  		.monspecs = {
  			.modedb = NULL,
  			.modedb_len = 0,
  			.hfmin = 30000,
  			.hfmax = 70000,
  			.vfmin = 60,
  			.vfmax = 60,
  			.dclkmin = 6000000,
  			.dclkmax = 28000000,
  			.input = FB_DISP_RGB,
  		},
  		.mode_screen		= 0x18fa5780,
  		.mode_horztiming	= 0x00dc7e77,
  		.mode_verttiming	= 0x00584805,
  		.mode_clkcontrol	= 0x00020000, /* /2=48Mhz */
  		.mode_pwmdiv		= 0x00000000,
  		.mode_pwmhi		= 0x00000000,
  		.mode_outmask	= 0x00FFFFFF,
  		.mode_fifoctrl	= 0x2f2f2f2f,
  		.mode_backlight	= 0x00000000,
  		.lcdclk		= 96,
  		800, 800,
  		600, 600,
  	},
  
  	[3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */
  		.name = "XVGA_1024x768",
  		.monspecs = {
  			.modedb = NULL,
  			.modedb_len = 0,
  			.hfmin = 30000,
  			.hfmax = 70000,
  			.vfmin = 60,
  			.vfmax = 60,
  			.dclkmin = 6000000,
  			.dclkmax = 28000000,
  			.input = FB_DISP_RGB,
  		},
  		.mode_screen		= 0x1ffaff80,
  		.mode_horztiming	= 0x007d0e57,
  		.mode_verttiming	= 0x00740a01,
  		.mode_clkcontrol	= 0x000A0000, /* /1 */
  		.mode_pwmdiv		= 0x00000000,
  		.mode_pwmhi		= 0x00000000,
  		.mode_outmask	= 0x00FFFFFF,
  		.mode_fifoctrl	= 0x2f2f2f2f,
  		.mode_backlight	= 0x00000000,
  		.lcdclk		= 72,
  		1024, 1024,
  		768, 768,
  	},
  
  	[4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */
  		.name = "XVGA_1280x1024",
  		.monspecs = {
  			.modedb = NULL,
  			.modedb_len = 0,
  			.hfmin = 30000,
  			.hfmax = 70000,
  			.vfmin = 60,
  			.vfmax = 60,
  			.dclkmin = 6000000,
  			.dclkmax = 28000000,
  			.input = FB_DISP_RGB,
  		},
  		.mode_screen		= 0x27fbff80,
  		.mode_horztiming	= 0x00cdb2c7,
  		.mode_verttiming	= 0x00600002,
  		.mode_clkcontrol	= 0x000A0000, /* /1 */
  		.mode_pwmdiv		= 0x00000000,
  		.mode_pwmhi		= 0x00000000,
  		.mode_outmask	= 0x00FFFFFF,
  		.mode_fifoctrl	= 0x2f2f2f2f,
  		.mode_backlight	= 0x00000000,
  		.lcdclk		= 120,
  		1280, 1280,
  		1024, 1024,
  	},
  
  	[5] = { /* Samsung 1024x768 TFT */
  		.name = "Samsung_1024x768_TFT",
  		.monspecs = {
  			.modedb = NULL,
  			.modedb_len = 0,
  			.hfmin = 30000,
  			.hfmax = 70000,
  			.vfmin = 60,
  			.vfmax = 60,
  			.dclkmin = 6000000,
  			.dclkmax = 28000000,
  			.input = FB_DISP_RGB,
  		},
  		.mode_screen		= 0x1ffaff80,
  		.mode_horztiming	= 0x018cc677,
  		.mode_verttiming	= 0x00241217,
  		.mode_clkcontrol	= 0x00000000, /* SCB 0x1 /4=24Mhz */
  		.mode_pwmdiv		= 0x8000063f, /* SCB 0x0 */
  		.mode_pwmhi		= 0x03400000, /* SCB 0x0 */
  		.mode_outmask	= 0x00FFFFFF,
  		.mode_fifoctrl	= 0x2f2f2f2f,
  		.mode_backlight	= 0x00000000,
  		.lcdclk		= 96,
  		1024, 1024,
  		768, 768,
  	},
  
  	[6] = { /* Toshiba 640x480 TFT */
  		.name = "Toshiba_640x480_TFT",
  		.monspecs = {
  			.modedb = NULL,
  			.modedb_len = 0,
  			.hfmin = 30000,
  			.hfmax = 70000,
  			.vfmin = 60,
  			.vfmax = 60,
  			.dclkmin = 6000000,
  			.dclkmax = 28000000,
  			.input = FB_DISP_RGB,
  		},
  		.mode_screen		= LCD_SCREEN_SX_N(640) |
  			LCD_SCREEN_SY_N(480),
  		.mode_horztiming	= LCD_HORZTIMING_HPW_N(96) |
  			LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51),
  		.mode_verttiming	= LCD_VERTTIMING_VPW_N(2) |
  			LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32),
  		.mode_clkcontrol	= 0x00000000, /* /4=24Mhz */
  		.mode_pwmdiv		= 0x8000063f,
  		.mode_pwmhi		= 0x03400000,
  		.mode_outmask	= 0x00fcfcfc,
  		.mode_fifoctrl	= 0x2f2f2f2f,
  		.mode_backlight	= 0x00000000,
  		.lcdclk		= 96,
  		640, 480,
  		640, 480,
  	},
  
  	[7] = { /* Sharp 320x240 TFT */
  		.name = "Sharp_320x240_TFT",
  		.monspecs = {
  			.modedb = NULL,
  			.modedb_len = 0,
  			.hfmin = 12500,
  			.hfmax = 20000,
  			.vfmin = 38,
  			.vfmax = 81,
  			.dclkmin = 4500000,
  			.dclkmax = 6800000,
  			.input = FB_DISP_RGB,
  		},
  		.mode_screen		= LCD_SCREEN_SX_N(320) |
  			LCD_SCREEN_SY_N(240),
  		.mode_horztiming	= LCD_HORZTIMING_HPW_N(60) |
  			LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2),
  		.mode_verttiming	= LCD_VERTTIMING_VPW_N(2) |
  			LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5),
  		.mode_clkcontrol	= LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/
  		.mode_pwmdiv		= 0x8000063f,
  		.mode_pwmhi		= 0x03400000,
  		.mode_outmask	= 0x00fcfcfc,
  		.mode_fifoctrl	= 0x2f2f2f2f,
  		.mode_backlight	= 0x00000000,
  		.lcdclk		= 96, /* 96MHz AUXPLL */
  		320, 320,
  		240, 240,
  	},
  
  	[8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */
  		.name = "Toppoly_TD070WGCB2",
  		.monspecs = {
  			.modedb = NULL,
  			.modedb_len = 0,
  			.hfmin = 30000,
  			.hfmax = 70000,
  			.vfmin = 60,
  			.vfmax = 60,
  			.dclkmin = 6000000,
  			.dclkmax = 28000000,
  			.input = FB_DISP_RGB,
  		},
  		.mode_screen		= LCD_SCREEN_SX_N(856) |
  			LCD_SCREEN_SY_N(480),
  		.mode_horztiming	= LCD_HORZTIMING_HND2_N(43) |
  			LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114),
  		.mode_verttiming	= LCD_VERTTIMING_VND2_N(20) |
  			LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4),
  		.mode_clkcontrol	= 0x00020001, /* /4=24Mhz */
  		.mode_pwmdiv		= 0x8000063f,
  		.mode_pwmhi		= 0x03400000,
  		.mode_outmask	= 0x00fcfcfc,
  		.mode_fifoctrl	= 0x2f2f2f2f,
  		.mode_backlight	= 0x00000000,
  		.lcdclk		= 96,
  		856, 856,
  		480, 480,
  	},
  	[9] = {
  		.name = "DB1300_800x480",
  		.monspecs = {
  			.modedb = NULL,
  			.modedb_len = 0,
  			.hfmin = 30000,
  			.hfmax = 70000,
  			.vfmin = 60,
  			.vfmax = 60,
  			.dclkmin = 6000000,
  			.dclkmax = 28000000,
  			.input = FB_DISP_RGB,
  		},
  		.mode_screen		= LCD_SCREEN_SX_N(800) |
  					  LCD_SCREEN_SY_N(480),
  		.mode_horztiming	= LCD_HORZTIMING_HPW_N(5) |
  					  LCD_HORZTIMING_HND1_N(16) |
  					  LCD_HORZTIMING_HND2_N(8),
  		.mode_verttiming	= LCD_VERTTIMING_VPW_N(4) |
  					  LCD_VERTTIMING_VND1_N(8) |
  					  LCD_VERTTIMING_VND2_N(5),
  		.mode_clkcontrol	= LCD_CLKCONTROL_PCD_N(1) |
  					  LCD_CLKCONTROL_IV |
  					  LCD_CLKCONTROL_IH,
  		.mode_pwmdiv		= 0x00000000,
  		.mode_pwmhi		= 0x00000000,
  		.mode_outmask		= 0x00FFFFFF,
  		.mode_fifoctrl		= 0x2f2f2f2f,
  		.mode_backlight		= 0x00000000,
  		.lcdclk			= 96,
  		800, 800,
  		480, 480,
  	},
  };
  
  #define NUM_PANELS (ARRAY_SIZE(known_lcd_panels))
  
  /********************************************************************/
  
  static int winbpp (unsigned int winctrl1)
  {
  	int bits = 0;
  
  	/* how many bits are needed for each pixel format */
  	switch (winctrl1 & LCD_WINCTRL1_FRM) {
  	case LCD_WINCTRL1_FRM_1BPP:
  		bits = 1;
  		break;
  	case LCD_WINCTRL1_FRM_2BPP:
  		bits = 2;
  		break;
  	case LCD_WINCTRL1_FRM_4BPP:
  		bits = 4;
  		break;
  	case LCD_WINCTRL1_FRM_8BPP:
  		bits = 8;
  		break;
  	case LCD_WINCTRL1_FRM_12BPP:
  	case LCD_WINCTRL1_FRM_16BPP655:
  	case LCD_WINCTRL1_FRM_16BPP565:
  	case LCD_WINCTRL1_FRM_16BPP556:
  	case LCD_WINCTRL1_FRM_16BPPI1555:
  	case LCD_WINCTRL1_FRM_16BPPI5551:
  	case LCD_WINCTRL1_FRM_16BPPA1555:
  	case LCD_WINCTRL1_FRM_16BPPA5551:
  		bits = 16;
  		break;
  	case LCD_WINCTRL1_FRM_24BPP:
  	case LCD_WINCTRL1_FRM_32BPP:
  		bits = 32;
  		break;
  	}
  
  	return bits;
  }
  
  static int fbinfo2index (struct fb_info *fb_info)
  {
  	int i;
  
  	for (i = 0; i < device_count; ++i) {
  		if (fb_info == _au1200fb_infos[i])
  			return i;
  	}
  	printk("au1200fb: ERROR: fbinfo2index failed!\n");
  	return -1;
  }
  
  static int au1200_setlocation (struct au1200fb_device *fbdev, int plane,
  	int xpos, int ypos)
  {
  	uint32 winctrl0, winctrl1, winenable, fb_offset = 0;
  	int xsz, ysz;
  
  	/* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */
  
  	winctrl0 = lcd->window[plane].winctrl0;
  	winctrl1 = lcd->window[plane].winctrl1;
  	winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN);
  	winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY);
  
  	/* Check for off-screen adjustments */
  	xsz = win->w[plane].xres;
  	ysz = win->w[plane].yres;
  	if ((xpos + win->w[plane].xres) > panel->Xres) {
  		/* Off-screen to the right */
  		xsz = panel->Xres - xpos; /* off by 1 ??? */
  		/*printk("off screen right\n");*/
  	}
  
  	if ((ypos + win->w[plane].yres) > panel->Yres) {
  		/* Off-screen to the bottom */
  		ysz = panel->Yres - ypos; /* off by 1 ??? */
  		/*printk("off screen bottom\n");*/
  	}
  
  	if (xpos < 0) {
  		/* Off-screen to the left */
  		xsz = win->w[plane].xres + xpos;
  		fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8);
  		xpos = 0;
  		/*printk("off screen left\n");*/
  	}
  
  	if (ypos < 0) {
  		/* Off-screen to the top */
  		ysz = win->w[plane].yres + ypos;
  		/* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */
  		ypos = 0;
  		/*printk("off screen top\n");*/
  	}
  
  	/* record settings */
  	win->w[plane].xpos = xpos;
  	win->w[plane].ypos = ypos;
  
  	xsz -= 1;
  	ysz -= 1;
  	winctrl0 |= (xpos << 21);
  	winctrl0 |= (ypos << 10);
  	winctrl1 |= (xsz << 11);
  	winctrl1 |= (ysz << 0);
  
  	/* Disable the window while making changes, then restore WINEN */
  	winenable = lcd->winenable & (1 << plane);
  	wmb(); /* drain writebuffer */
  	lcd->winenable &= ~(1 << plane);
  	lcd->window[plane].winctrl0 = winctrl0;
  	lcd->window[plane].winctrl1 = winctrl1;
  	lcd->window[plane].winbuf0 =
  	lcd->window[plane].winbuf1 = fbdev->fb_phys;
  	lcd->window[plane].winbufctrl = 0; /* select winbuf0 */
  	lcd->winenable |= winenable;
  	wmb(); /* drain writebuffer */
  
  	return 0;
  }
  
  static void au1200_setpanel(struct panel_settings *newpanel,
  			    struct au1200fb_platdata *pd)
  {
  	/*
  	 * Perform global setup/init of LCD controller
  	 */
  	uint32 winenable;
  
  	/* Make sure all windows disabled */
  	winenable = lcd->winenable;
  	lcd->winenable = 0;
  	wmb(); /* drain writebuffer */
  	/*
  	 * Ensure everything is disabled before reconfiguring
  	 */
  	if (lcd->screen & LCD_SCREEN_SEN) {
  		/* Wait for vertical sync period */
  		lcd->intstatus = LCD_INT_SS;
  		while ((lcd->intstatus & LCD_INT_SS) == 0)
  			;
  
  		lcd->screen &= ~LCD_SCREEN_SEN;	/*disable the controller*/
  
  		do {
  			lcd->intstatus = lcd->intstatus; /*clear interrupts*/
  			wmb(); /* drain writebuffer */
  		/*wait for controller to shut down*/
  		} while ((lcd->intstatus & LCD_INT_SD) == 0);
  
  		/* Call shutdown of current panel (if up) */
  		/* this must occur last, because if an external clock is driving
  		    the controller, the clock cannot be turned off before first
  			shutting down the controller.
  		 */
  		if (pd->panel_shutdown)
  			pd->panel_shutdown();
  	}
  
  	/* Newpanel == NULL indicates a shutdown operation only */
  	if (newpanel == NULL)
  		return;
  
  	panel = newpanel;
  
  	printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres);
  
  	/*
  	 * Setup clocking if internal LCD clock source (assumes sys_auxpll valid)
  	 */
  	if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT))
  	{
  		struct clk *c = clk_get(NULL, "lcd_intclk");
  		long r, pc = panel->lcdclk * 1000000;
  
  		if (!IS_ERR(c)) {
  			r = clk_round_rate(c, pc);
  			if ((pc - r) < (pc / 10)) {	/* 10% slack */
  				clk_set_rate(c, r);
  				clk_prepare_enable(c);
  			}
  			clk_put(c);
  		}
  	}
  
  	/*
  	 * Configure panel timings
  	 */
  	lcd->screen = panel->mode_screen;
  	lcd->horztiming = panel->mode_horztiming;
  	lcd->verttiming = panel->mode_verttiming;
  	lcd->clkcontrol = panel->mode_clkcontrol;
  	lcd->pwmdiv = panel->mode_pwmdiv;
  	lcd->pwmhi = panel->mode_pwmhi;
  	lcd->outmask = panel->mode_outmask;
  	lcd->fifoctrl = panel->mode_fifoctrl;
  	wmb(); /* drain writebuffer */
  
  	/* fixme: Check window settings to make sure still valid
  	 * for new geometry */
  #if 0
  	au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos);
  	au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos);
  	au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos);
  	au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos);
  #endif
  	lcd->winenable = winenable;
  
  	/*
  	 * Re-enable screen now that it is configured
  	 */
  	lcd->screen |= LCD_SCREEN_SEN;
  	wmb(); /* drain writebuffer */
  
  	/* Call init of panel */
  	if (pd->panel_init)
  		pd->panel_init();
  
  	/* FIX!!!! not appropriate on panel change!!! Global setup/init */
  	lcd->intenable = 0;
  	lcd->intstatus = ~0;
  	lcd->backcolor = win->mode_backcolor;
  
  	/* Setup Color Key - FIX!!! */
  	lcd->colorkey = win->mode_colorkey;
  	lcd->colorkeymsk = win->mode_colorkeymsk;
  
  	/* Setup HWCursor - FIX!!! Need to support this eventually */
  	lcd->hwc.cursorctrl = 0;
  	lcd->hwc.cursorpos = 0;
  	lcd->hwc.cursorcolor0 = 0;
  	lcd->hwc.cursorcolor1 = 0;
  	lcd->hwc.cursorcolor2 = 0;
  	lcd->hwc.cursorcolor3 = 0;
  
  
  #if 0
  #define D(X) printk("%25s: %08X\n", #X, X)
  	D(lcd->screen);
  	D(lcd->horztiming);
  	D(lcd->verttiming);
  	D(lcd->clkcontrol);
  	D(lcd->pwmdiv);
  	D(lcd->pwmhi);
  	D(lcd->outmask);
  	D(lcd->fifoctrl);
  	D(lcd->window[0].winctrl0);
  	D(lcd->window[0].winctrl1);
  	D(lcd->window[0].winctrl2);
  	D(lcd->window[0].winbuf0);
  	D(lcd->window[0].winbuf1);
  	D(lcd->window[0].winbufctrl);
  	D(lcd->window[1].winctrl0);
  	D(lcd->window[1].winctrl1);
  	D(lcd->window[1].winctrl2);
  	D(lcd->window[1].winbuf0);
  	D(lcd->window[1].winbuf1);
  	D(lcd->window[1].winbufctrl);
  	D(lcd->window[2].winctrl0);
  	D(lcd->window[2].winctrl1);
  	D(lcd->window[2].winctrl2);
  	D(lcd->window[2].winbuf0);
  	D(lcd->window[2].winbuf1);
  	D(lcd->window[2].winbufctrl);
  	D(lcd->window[3].winctrl0);
  	D(lcd->window[3].winctrl1);
  	D(lcd->window[3].winctrl2);
  	D(lcd->window[3].winbuf0);
  	D(lcd->window[3].winbuf1);
  	D(lcd->window[3].winbufctrl);
  	D(lcd->winenable);
  	D(lcd->intenable);
  	D(lcd->intstatus);
  	D(lcd->backcolor);
  	D(lcd->winenable);
  	D(lcd->colorkey);
      D(lcd->colorkeymsk);
  	D(lcd->hwc.cursorctrl);
  	D(lcd->hwc.cursorpos);
  	D(lcd->hwc.cursorcolor0);
  	D(lcd->hwc.cursorcolor1);
  	D(lcd->hwc.cursorcolor2);
  	D(lcd->hwc.cursorcolor3);
  #endif
  }
  
  static void au1200_setmode(struct au1200fb_device *fbdev)
  {
  	int plane = fbdev->plane;
  	/* Window/plane setup */
  	lcd->window[plane].winctrl1 = ( 0
  		| LCD_WINCTRL1_PRI_N(plane)
  		| win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */
  		) ;
  
  	au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos);
  
  	lcd->window[plane].winctrl2 = ( 0
  		| LCD_WINCTRL2_CKMODE_00
  		| LCD_WINCTRL2_DBM
  		| LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length)
  		| LCD_WINCTRL2_SCX_1
  		| LCD_WINCTRL2_SCY_1
  		) ;
  	lcd->winenable |= win->w[plane].mode_winenable;
  	wmb(); /* drain writebuffer */
  }
  
  
  /* Inline helpers */
  
  /*#define panel_is_dual(panel)  ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
  /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
  
  #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN)
  
  /* Bitfields format supported by the controller. */
  static struct fb_bitfield rgb_bitfields[][4] = {
    	/*     Red, 	   Green, 	 Blue, 	     Transp   */
  	[LCD_WINCTRL1_FRM_16BPP655 >> 25] =
  		{ { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
  
  	[LCD_WINCTRL1_FRM_16BPP565 >> 25] =
  		{ { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
  
  	[LCD_WINCTRL1_FRM_16BPP556 >> 25] =
  		{ { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } },
  
  	[LCD_WINCTRL1_FRM_16BPPI1555 >> 25] =
  		{ { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
  
  	[LCD_WINCTRL1_FRM_16BPPI5551 >> 25] =
  		{ { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } },
  
  	[LCD_WINCTRL1_FRM_16BPPA1555 >> 25] =
  		{ { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } },
  
  	[LCD_WINCTRL1_FRM_16BPPA5551 >> 25] =
  		{ { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } },
  
  	[LCD_WINCTRL1_FRM_24BPP >> 25] =
  		{ { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } },
  
  	[LCD_WINCTRL1_FRM_32BPP >> 25] =
  		{ { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } },
  };
  
  /*-------------------------------------------------------------------------*/
  
  /* Helpers */
  
  static void au1200fb_update_fbinfo(struct fb_info *fbi)
  {
  	/* FIX!!!! This also needs to take the window pixel format into account!!! */
  
  	/* Update var-dependent FB info */
  	if (panel_is_color(panel)) {
  		if (fbi->var.bits_per_pixel <= 8) {
  			/* palettized */
  			fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR;
  			fbi->fix.line_length = fbi->var.xres_virtual /
  				(8/fbi->var.bits_per_pixel);
  		} else {
  			/* non-palettized */
  			fbi->fix.visual = FB_VISUAL_TRUECOLOR;
  			fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8);
  		}
  	} else {
  		/* mono FIX!!! mono 8 and 4 bits */
  		fbi->fix.visual = FB_VISUAL_MONO10;
  		fbi->fix.line_length = fbi->var.xres_virtual / 8;
  	}
  
  	fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual;
  	print_dbg("line length: %d\n", fbi->fix.line_length);
  	print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel);
  }
  
  /*-------------------------------------------------------------------------*/
  
  /* AU1200 framebuffer driver */
  
  /* fb_check_var
   * Validate var settings with hardware restrictions and modify it if necessary
   */
  static int au1200fb_fb_check_var(struct fb_var_screeninfo *var,
  	struct fb_info *fbi)
  {
  	struct au1200fb_device *fbdev = fbi->par;
  	u32 pixclock;
  	int screen_size, plane;
  
  	plane = fbdev->plane;
  
  	/* Make sure that the mode respect all LCD controller and
  	 * panel restrictions. */
  	var->xres = win->w[plane].xres;
  	var->yres = win->w[plane].yres;
  
  	/* No need for virtual resolution support */
  	var->xres_virtual = var->xres;
  	var->yres_virtual = var->yres;
  
  	var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1);
  
  	screen_size = var->xres_virtual * var->yres_virtual;
  	if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8);
  	else screen_size /= (8/var->bits_per_pixel);
  
  	if (fbdev->fb_len < screen_size)
  		return -EINVAL; /* Virtual screen is to big, abort */
  
  	/* FIX!!!! what are the implicaitons of ignoring this for windows ??? */
  	/* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel
  	 * clock can only be obtain by dividing this value by an even integer.
  	 * Fallback to a slower pixel clock if necessary. */
  	pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin);
  	pixclock = min3(pixclock, fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2);
  
  	if (AU1200_LCD_MAX_CLK % pixclock) {
  		int diff = AU1200_LCD_MAX_CLK % pixclock;
  		pixclock -= diff;
  	}
  
  	var->pixclock = KHZ2PICOS(pixclock/1000);
  #if 0
  	if (!panel_is_active(panel)) {
  		int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1;
  
  		if (!panel_is_color(panel)
  			&& (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) {
  			/* STN 8bit mono panel support is up to 6MHz pixclock */
  			var->pixclock = KHZ2PICOS(6000);
  		} else if (!pcd) {
  			/* Other STN panel support is up to 12MHz  */
  			var->pixclock = KHZ2PICOS(12000);
  		}
  	}
  #endif
  	/* Set bitfield accordingly */
  	switch (var->bits_per_pixel) {
  		case 16:
  		{
  			/* 16bpp True color.
  			 * These must be set to MATCH WINCTRL[FORM] */
  			int idx;
  			idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
  			var->red    = rgb_bitfields[idx][0];
  			var->green  = rgb_bitfields[idx][1];
  			var->blue   = rgb_bitfields[idx][2];
  			var->transp = rgb_bitfields[idx][3];
  			break;
  		}
  
  		case 32:
  		{
  			/* 32bpp True color.
  			 * These must be set to MATCH WINCTRL[FORM] */
  			int idx;
  			idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
  			var->red    = rgb_bitfields[idx][0];
  			var->green  = rgb_bitfields[idx][1];
  			var->blue   = rgb_bitfields[idx][2];
  			var->transp = rgb_bitfields[idx][3];
  			break;
  		}
  		default:
  			print_dbg("Unsupported depth %dbpp", var->bits_per_pixel);
  			return -EINVAL;
  	}
  
  	return 0;
  }
  
  /* fb_set_par
   * Set hardware with var settings. This will enable the controller with a
   * specific mode, normally validated with the fb_check_var method
   */
  static int au1200fb_fb_set_par(struct fb_info *fbi)
  {
  	struct au1200fb_device *fbdev = fbi->par;
  
  	au1200fb_update_fbinfo(fbi);
  	au1200_setmode(fbdev);
  
  	return 0;
  }
  
  /* fb_setcolreg
   * Set color in LCD palette.
   */
  static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
  	unsigned blue, unsigned transp, struct fb_info *fbi)
  {
  	volatile u32 *palette = lcd->palette;
  	u32 value;
  
  	if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1))
  		return -EINVAL;
  
  	if (fbi->var.grayscale) {
  		/* Convert color to grayscale */
  		red = green = blue =
  			(19595 * red + 38470 * green + 7471 * blue) >> 16;
  	}
  
  	if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) {
  		/* Place color in the pseudopalette */
  		if (regno > 16)
  			return -EINVAL;
  
  		palette = (u32*) fbi->pseudo_palette;
  
  		red   >>= (16 - fbi->var.red.length);
  		green >>= (16 - fbi->var.green.length);
  		blue  >>= (16 - fbi->var.blue.length);
  
  		value = (red   << fbi->var.red.offset) 	|
  			(green << fbi->var.green.offset)|
  			(blue  << fbi->var.blue.offset);
  		value &= 0xFFFF;
  
  	} else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) {
  		/* COLOR TFT PALLETTIZED (use RGB 565) */
  		value = (red & 0xF800)|((green >> 5) &
  				0x07E0)|((blue >> 11) & 0x001F);
  		value &= 0xFFFF;
  
  	} else if (0 /*panel_is_color(fbdev->panel)*/) {
  		/* COLOR STN MODE */
  		value = 0x1234;
  		value &= 0xFFF;
  	} else {
  		/* MONOCHROME MODE */
  		value = (green >> 12) & 0x000F;
  		value &= 0xF;
  	}
  
  	palette[regno] = value;
  
  	return 0;
  }
  
  /* fb_blank
   * Blank the screen. Depending on the mode, the screen will be
   * activated with the backlight color, or desactivated
   */
  static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi)
  {
  	struct au1200fb_device *fbdev = fbi->par;
  
  	/* Short-circuit screen blanking */
  	if (noblanking)
  		return 0;
  
  	switch (blank_mode) {
  
  	case FB_BLANK_UNBLANK:
  	case FB_BLANK_NORMAL:
  		/* printk("turn on panel\n"); */
  		au1200_setpanel(panel, fbdev->pd);
  		break;
  	case FB_BLANK_VSYNC_SUSPEND:
  	case FB_BLANK_HSYNC_SUSPEND:
  	case FB_BLANK_POWERDOWN:
  		/* printk("turn off panel\n"); */
  		au1200_setpanel(NULL, fbdev->pd);
  		break;
  	default:
  		break;
  
  	}
  
  	/* FB_BLANK_NORMAL is a soft blank */
  	return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0;
  }
  
  /* fb_mmap
   * Map video memory in user space. We don't use the generic fb_mmap
   * method mainly to allow the use of the TLB streaming flag (CCA=6)
   */
  static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
  {
  	struct au1200fb_device *fbdev = info->par;
  
  	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
  	pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
  
  	return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len);
  }
  
  static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
  {
  
  	unsigned int hi1, divider;
  
  	/* SCREEN_SIZE: user cannot reset size, must switch panel choice */
  
  	if (pdata->flags & SCREEN_BACKCOLOR)
  		lcd->backcolor = pdata->backcolor;
  
  	if (pdata->flags & SCREEN_BRIGHTNESS) {
  
  		// limit brightness pwm duty to >= 30/1600
  		if (pdata->brightness < 30) {
  			pdata->brightness = 30;
  		}
  		divider = (lcd->pwmdiv & 0x3FFFF) + 1;
  		hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8);
  		lcd->pwmhi &= 0xFFFF;
  		lcd->pwmhi |= (hi1 << 16);
  	}
  
  	if (pdata->flags & SCREEN_COLORKEY)
  		lcd->colorkey = pdata->colorkey;
  
  	if (pdata->flags & SCREEN_MASK)
  		lcd->colorkeymsk = pdata->mask;
  	wmb(); /* drain writebuffer */
  }
  
  static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
  {
  	unsigned int hi1, divider;
  
  	pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1;
  	pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1;
  
  	pdata->backcolor = lcd->backcolor;
  	pdata->colorkey = lcd->colorkey;
  	pdata->mask = lcd->colorkeymsk;
  
  	// brightness
  	hi1 = (lcd->pwmhi >> 16) + 1;
  	divider = (lcd->pwmdiv & 0x3FFFF) + 1;
  	pdata->brightness = ((hi1 << 8) / divider) - 1;
  	wmb(); /* drain writebuffer */
  }
  
  static void set_window(unsigned int plane,
  	struct au1200_lcd_window_regs_t *pdata)
  {
  	unsigned int val, bpp;
  
  	/* Window control register 0 */
  	if (pdata->flags & WIN_POSITION) {
  		val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX |
  				LCD_WINCTRL0_OY);
  		val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX);
  		val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY);
  		lcd->window[plane].winctrl0 = val;
  	}
  	if (pdata->flags & WIN_ALPHA_COLOR) {
  		val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A);
  		val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A);
  		lcd->window[plane].winctrl0 = val;
  	}
  	if (pdata->flags & WIN_ALPHA_MODE) {
  		val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN);
  		val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN);
  		lcd->window[plane].winctrl0 = val;
  	}
  
  	/* Window control register 1 */
  	if (pdata->flags & WIN_PRIORITY) {
  		val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI);
  		val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI);
  		lcd->window[plane].winctrl1 = val;
  	}
  	if (pdata->flags & WIN_CHANNEL) {
  		val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE);
  		val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE);
  		lcd->window[plane].winctrl1 = val;
  	}
  	if (pdata->flags & WIN_BUFFER_FORMAT) {
  		val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM);
  		val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM);
  		lcd->window[plane].winctrl1 = val;
  	}
  	if (pdata->flags & WIN_COLOR_ORDER) {
  		val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO);
  		val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO);
  		lcd->window[plane].winctrl1 = val;
  	}
  	if (pdata->flags & WIN_PIXEL_ORDER) {
  		val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO);
  		val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO);
  		lcd->window[plane].winctrl1 = val;
  	}
  	if (pdata->flags & WIN_SIZE) {
  		val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX |
  				LCD_WINCTRL1_SZY);
  		val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX);
  		val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY);
  		lcd->window[plane].winctrl1 = val;
  		/* program buffer line width */
  		bpp = winbpp(val) / 8;
  		val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX);
  		val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX);
  		lcd->window[plane].winctrl2 = val;
  	}
  
  	/* Window control register 2 */
  	if (pdata->flags & WIN_COLORKEY_MODE) {
  		val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE);
  		val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE);
  		lcd->window[plane].winctrl2 = val;
  	}
  	if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) {
  		val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM);
  		val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM);
  		lcd->window[plane].winctrl2 = val;
  	}
  	if (pdata->flags & WIN_RAM_ARRAY_MODE) {
  		val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM);
  		val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM);
  		lcd->window[plane].winctrl2 = val;
  	}
  
  	/* Buffer line width programmed with WIN_SIZE */
  
  	if (pdata->flags & WIN_BUFFER_SCALE) {
  		val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX |
  				LCD_WINCTRL2_SCY);
  		val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX);
  		val |= ((pdata->ysize) & LCD_WINCTRL2_SCY);
  		lcd->window[plane].winctrl2 = val;
  	}
  
  	if (pdata->flags & WIN_ENABLE) {
  		val = lcd->winenable;
  		val &= ~(1<<plane);
  		val |= (pdata->enable & 1) << plane;
  		lcd->winenable = val;
  	}
  	wmb(); /* drain writebuffer */
  }
  
  static void get_window(unsigned int plane,
  	struct au1200_lcd_window_regs_t *pdata)
  {
  	/* Window control register 0 */
  	pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21;
  	pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10;
  	pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2;
  	pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1;
  
  	/* Window control register 1 */
  	pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30;
  	pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29;
  	pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25;
  	pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24;
  	pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22;
  	pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1;
  	pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1;
  
  	/* Window control register 2 */
  	pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24;
  	pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23;
  	pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21;
  
  	pdata->enable = (lcd->winenable >> plane) & 1;
  	wmb(); /* drain writebuffer */
  }
  
  static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
                            unsigned long arg)
  {
  	struct au1200fb_device *fbdev = info->par;
  	int plane;
  	int val;
  
  	plane = fbinfo2index(info);
  	print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane);
  
  	if (cmd == AU1200_LCD_FB_IOCTL) {
  		struct au1200_lcd_iodata_t iodata;
  
  		if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata)))
  			return -EFAULT;
  
  		print_dbg("FB IOCTL called\n");
  
  		switch (iodata.subcmd) {
  		case AU1200_LCD_SET_SCREEN:
  			print_dbg("AU1200_LCD_SET_SCREEN\n");
  			set_global(cmd, &iodata.global);
  			break;
  
  		case AU1200_LCD_GET_SCREEN:
  			print_dbg("AU1200_LCD_GET_SCREEN\n");
  			get_global(cmd, &iodata.global);
  			break;
  
  		case AU1200_LCD_SET_WINDOW:
  			print_dbg("AU1200_LCD_SET_WINDOW\n");
  			set_window(plane, &iodata.window);
  			break;
  
  		case AU1200_LCD_GET_WINDOW:
  			print_dbg("AU1200_LCD_GET_WINDOW\n");
  			get_window(plane, &iodata.window);
  			break;
  
  		case AU1200_LCD_SET_PANEL:
  			print_dbg("AU1200_LCD_SET_PANEL\n");
  			if ((iodata.global.panel_choice >= 0) &&
  					(iodata.global.panel_choice <
  					 NUM_PANELS))
  			{
  				struct panel_settings *newpanel;
  				panel_index = iodata.global.panel_choice;
  				newpanel = &known_lcd_panels[panel_index];
  				au1200_setpanel(newpanel, fbdev->pd);
  			}
  			break;
  
  		case AU1200_LCD_GET_PANEL:
  			print_dbg("AU1200_LCD_GET_PANEL\n");
  			iodata.global.panel_choice = panel_index;
  			break;
  
  		default:
  			return -EINVAL;
  		}
  
  		val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata));
  		if (val) {
  			print_dbg("error: could not copy %d bytes\n", val);
  			return -EFAULT;
  		}
  	}
  
  	return 0;
  }
  
  
  static struct fb_ops au1200fb_fb_ops = {
  	.owner		= THIS_MODULE,
  	.fb_check_var	= au1200fb_fb_check_var,
  	.fb_set_par	= au1200fb_fb_set_par,
  	.fb_setcolreg	= au1200fb_fb_setcolreg,
  	.fb_blank	= au1200fb_fb_blank,
  	.fb_fillrect	= sys_fillrect,
  	.fb_copyarea	= sys_copyarea,
  	.fb_imageblit	= sys_imageblit,
  	.fb_read	= fb_sys_read,
  	.fb_write	= fb_sys_write,
  	.fb_sync	= NULL,
  	.fb_ioctl	= au1200fb_ioctl,
  	.fb_mmap	= au1200fb_fb_mmap,
  };
  
  /*-------------------------------------------------------------------------*/
  
  static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id)
  {
  	/* Nothing to do for now, just clear any pending interrupt */
  	lcd->intstatus = lcd->intstatus;
  	wmb(); /* drain writebuffer */
  
  	return IRQ_HANDLED;
  }
  
  /*-------------------------------------------------------------------------*/
  
  /* AU1200 LCD device probe helpers */
  
  static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
  {
  	struct fb_info *fbi = fbdev->fb_info;
  	int bpp;
  
  	fbi->fbops = &au1200fb_fb_ops;
  
  	bpp = winbpp(win->w[fbdev->plane].mode_winctrl1);
  
  	/* Copy monitor specs from panel data */
  	/* fixme: we're setting up LCD controller windows, so these dont give a
  	damn as to what the monitor specs are (the panel itself does, but that
  	isn't done here...so maybe need a generic catchall monitor setting??? */
  	memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs));
  
  	/* We first try the user mode passed in argument. If that failed,
  	 * or if no one has been specified, we default to the first mode of the
  	 * panel list. Note that after this call, var data will be set */
  	if (!fb_find_mode(&fbi->var,
  			  fbi,
  			  NULL, /* drv_info.opt_mode, */
  			  fbi->monspecs.modedb,
  			  fbi->monspecs.modedb_len,
  			  fbi->monspecs.modedb,
  			  bpp)) {
  
  		print_err("Cannot find valid mode for panel %s", panel->name);
  		return -EFAULT;
  	}
  
  	fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL);
  	if (!fbi->pseudo_palette) {
  		return -ENOMEM;
  	}
  
  	if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
  		print_err("Fail to allocate colormap (%d entries)",
  			   AU1200_LCD_NBR_PALETTE_ENTRIES);
  		kfree(fbi->pseudo_palette);
  		return -EFAULT;
  	}
  
  	strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id));
  	fbi->fix.smem_start = fbdev->fb_phys;
  	fbi->fix.smem_len = fbdev->fb_len;
  	fbi->fix.type = FB_TYPE_PACKED_PIXELS;
  	fbi->fix.xpanstep = 0;
  	fbi->fix.ypanstep = 0;
  	fbi->fix.mmio_start = 0;
  	fbi->fix.mmio_len = 0;
  	fbi->fix.accel = FB_ACCEL_NONE;
  
  	fbi->screen_base = (char __iomem *) fbdev->fb_mem;
  
  	au1200fb_update_fbinfo(fbi);
  
  	return 0;
  }
  
  /*-------------------------------------------------------------------------*/
  
  
  static int au1200fb_setup(struct au1200fb_platdata *pd)
  {
  	char *options = NULL;
  	char *this_opt, *endptr;
  	int num_panels = ARRAY_SIZE(known_lcd_panels);
  	int panel_idx = -1;
  
  	fb_get_options(DRIVER_NAME, &options);
  
  	if (!options)
  		goto out;
  
  	while ((this_opt = strsep(&options, ",")) != NULL) {
  		/* Panel option - can be panel name,
  		 * "bs" for board-switch, or number/index */
  		if (!strncmp(this_opt, "panel:", 6)) {
  			int i;
  			long int li;
  			char *endptr;
  			this_opt += 6;
  			/* First check for index, which allows
  			 * to short circuit this mess */
  			li = simple_strtol(this_opt, &endptr, 0);
  			if (*endptr == '\0')
  				panel_idx = (int)li;
  			else if (strcmp(this_opt, "bs") == 0)
  				panel_idx = pd->panel_index();
  			else {
  				for (i = 0; i < num_panels; i++) {
  					if (!strcmp(this_opt,
  						    known_lcd_panels[i].name)) {
  						panel_idx = i;
  						break;
  					}
  				}
  			}
  			if ((panel_idx < 0) || (panel_idx >= num_panels))
  				print_warn("Panel %s not supported!", this_opt);
  			else
  				panel_index = panel_idx;
  
  		} else if (strncmp(this_opt, "nohwcursor", 10) == 0)
  			nohwcursor = 1;
  		else if (strncmp(this_opt, "devices:", 8) == 0) {
  			this_opt += 8;
  			device_count = simple_strtol(this_opt, &endptr, 0);
  			if ((device_count < 0) ||
  			    (device_count > MAX_DEVICE_COUNT))
  				device_count = MAX_DEVICE_COUNT;
  		} else if (strncmp(this_opt, "wincfg:", 7) == 0) {
  			this_opt += 7;
  			window_index = simple_strtol(this_opt, &endptr, 0);
  			if ((window_index < 0) ||
  			    (window_index >= ARRAY_SIZE(windows)))
  				window_index = DEFAULT_WINDOW_INDEX;
  		} else if (strncmp(this_opt, "off", 3) == 0)
  			return 1;
  		else
  			print_warn("Unsupported option \"%s\"", this_opt);
  	}
  
  out:
  	return 0;
  }
  
  /* AU1200 LCD controller device driver */
  static int au1200fb_drv_probe(struct platform_device *dev)
  {
  	struct au1200fb_device *fbdev;
  	struct au1200fb_platdata *pd;
  	struct fb_info *fbi = NULL;
  	unsigned long page;
  	int bpp, plane, ret, irq;
  
  	print_info("" DRIVER_DESC "");
  
  	pd = dev->dev.platform_data;
  	if (!pd)
  		return -ENODEV;
  
  	/* Setup driver with options */
  	if (au1200fb_setup(pd))
  		return -ENODEV;
  
  	/* Point to the panel selected */
  	panel = &known_lcd_panels[panel_index];
  	win = &windows[window_index];
  
  	printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);
  	printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);
  
  	/* shut gcc up */
  	ret = 0;
  	fbdev = NULL;
  
  	for (plane = 0; plane < device_count; ++plane) {
  		bpp = winbpp(win->w[plane].mode_winctrl1);
  		if (win->w[plane].xres == 0)
  			win->w[plane].xres = panel->Xres;
  		if (win->w[plane].yres == 0)
  			win->w[plane].yres = panel->Yres;
  
  		fbi = framebuffer_alloc(sizeof(struct au1200fb_device),
  					&dev->dev);
  		if (!fbi) {
  			ret = -ENOMEM;
  			goto failed;
  		}
  
  		_au1200fb_infos[plane] = fbi;
  		fbdev = fbi->par;
  		fbdev->fb_info = fbi;
  		fbdev->pd = pd;
  
  		fbdev->plane = plane;
  
  		/* Allocate the framebuffer to the maximum screen size */
  		fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8;
  
  		fbdev->fb_mem = dmam_alloc_noncoherent(&dev->dev,
  				PAGE_ALIGN(fbdev->fb_len),
  				&fbdev->fb_phys, GFP_KERNEL);
  		if (!fbdev->fb_mem) {
  			print_err("fail to allocate frambuffer (size: %dK))",
  				  fbdev->fb_len / 1024);
  			ret = -ENOMEM;
  			goto failed;
  		}
  
  		/*
  		 * Set page reserved so that mmap will work. This is necessary
  		 * since we'll be remapping normal memory.
  		 */
  		for (page = (unsigned long)fbdev->fb_phys;
  		     page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
  			     fbdev->fb_len);
  		     page += PAGE_SIZE) {
  			SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
  		}
  		print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
  		print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
  
  		/* Init FB data */
  		if ((ret = au1200fb_init_fbinfo(fbdev)) < 0)
  			goto failed;
  
  		/* Register new framebuffer */
  		ret = register_framebuffer(fbi);
  		if (ret < 0) {
  			print_err("cannot register new framebuffer");
  			goto failed;
  		}
  
  		au1200fb_fb_set_par(fbi);
  
  #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
  		if (plane == 0)
  			if (fb_prepare_logo(fbi, FB_ROTATE_UR)) {
  				/* Start display and show logo on boot */
  				fb_set_cmap(&fbi->cmap, fbi);
  				fb_show_logo(fbi, FB_ROTATE_UR);
  			}
  #endif
  	}
  
  	/* Now hook interrupt too */
  	irq = platform_get_irq(dev, 0);
  	ret = request_irq(irq, au1200fb_handle_irq,
  			  IRQF_SHARED, "lcd", (void *)dev);
  	if (ret) {
  		print_err("fail to request interrupt line %d (err: %d)",
  			  irq, ret);
  		goto failed;
  	}
  
  	platform_set_drvdata(dev, pd);
  
  	/* Kickstart the panel */
  	au1200_setpanel(panel, pd);
  
  	return 0;
  
  failed:
  	/* NOTE: This only does the current plane/window that failed; others are still active */
  	if (fbi) {
  		if (fbi->cmap.len != 0)
  			fb_dealloc_cmap(&fbi->cmap);
  		kfree(fbi->pseudo_palette);
  	}
  	if (plane == 0)
  		free_irq(AU1200_LCD_INT, (void*)dev);
  	return ret;
  }
  
  static int au1200fb_drv_remove(struct platform_device *dev)
  {
  	struct au1200fb_platdata *pd = platform_get_drvdata(dev);
  	struct au1200fb_device *fbdev;
  	struct fb_info *fbi;
  	int plane;
  
  	/* Turn off the panel */
  	au1200_setpanel(NULL, pd);
  
  	for (plane = 0; plane < device_count; ++plane)	{
  		fbi = _au1200fb_infos[plane];
  		fbdev = fbi->par;
  
  		/* Clean up all probe data */
  		unregister_framebuffer(fbi);
  		if (fbi->cmap.len != 0)
  			fb_dealloc_cmap(&fbi->cmap);
  		kfree(fbi->pseudo_palette);
  
  		framebuffer_release(fbi);
  		_au1200fb_infos[plane] = NULL;
  	}
  
  	free_irq(platform_get_irq(dev, 0), (void *)dev);
  
  	return 0;
  }
  
  #ifdef CONFIG_PM
  static int au1200fb_drv_suspend(struct device *dev)
  {
  	struct au1200fb_platdata *pd = dev_get_drvdata(dev);
  	au1200_setpanel(NULL, pd);
  
  	lcd->outmask = 0;
  	wmb(); /* drain writebuffer */
  
  	return 0;
  }
  
  static int au1200fb_drv_resume(struct device *dev)
  {
  	struct au1200fb_platdata *pd = dev_get_drvdata(dev);
  	struct fb_info *fbi;
  	int i;
  
  	/* Kickstart the panel */
  	au1200_setpanel(panel, pd);
  
  	for (i = 0; i < device_count; i++) {
  		fbi = _au1200fb_infos[i];
  		au1200fb_fb_set_par(fbi);
  	}
  
  	return 0;
  }
  
  static const struct dev_pm_ops au1200fb_pmops = {
  	.suspend	= au1200fb_drv_suspend,
  	.resume		= au1200fb_drv_resume,
  	.freeze		= au1200fb_drv_suspend,
  	.thaw		= au1200fb_drv_resume,
  };
  
  #define AU1200FB_PMOPS	(&au1200fb_pmops)
  
  #else
  #define AU1200FB_PMOPS	NULL
  #endif /* CONFIG_PM */
  
  static struct platform_driver au1200fb_driver = {
  	.driver = {
  		.name	= "au1200-lcd",
  		.pm	= AU1200FB_PMOPS,
  	},
  	.probe		= au1200fb_drv_probe,
  	.remove		= au1200fb_drv_remove,
  };
  module_platform_driver(au1200fb_driver);
  
  MODULE_DESCRIPTION(DRIVER_DESC);
  MODULE_LICENSE("GPL");
  