video: move fbdev to drivers/video/fbdev

The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.

Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.

No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 0 insertions, 1637 deletions

diff --git a/drivers/video/w100fb.c b/drivers/video/w100fb.c
deleted file mode 100644
index 10951c8..0000000
--- a/drivers/video/w100fb.c
+++ /dev/null
@@ -1,1637 +0,0 @@
-/*
- * linux/drivers/video/w100fb.c
- *
- * Frame Buffer Device for ATI Imageon w100 (Wallaby)
- *
- * Copyright (C) 2002, ATI Corp.
- * Copyright (C) 2004-2006 Richard Purdie
- * Copyright (c) 2005 Ian Molton
- * Copyright (c) 2006 Alberto Mardegan
- *
- * Rewritten for 2.6 by Richard Purdie <rpurdie@rpsys.net>
- *
- * Generic platform support by Ian Molton <spyro@f2s.com>
- * and Richard Purdie <rpurdie@rpsys.net>
- *
- * w32xx support by Ian Molton
- *
- * Hardware acceleration support by Alberto Mardegan
- * <mardy@users.sourceforge.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <video/w100fb.h>
-#include "w100fb.h"
-
-/*
- * Prototypes
- */
-static void w100_suspend(u32 mode);
-static void w100_vsync(void);
-static void w100_hw_init(struct w100fb_par*);
-static void w100_pwm_setup(struct w100fb_par*);
-static void w100_init_clocks(struct w100fb_par*);
-static void w100_setup_memory(struct w100fb_par*);
-static void w100_init_lcd(struct w100fb_par*);
-static void w100_set_dispregs(struct w100fb_par*);
-static void w100_update_enable(void);
-static void w100_update_disable(void);
-static void calc_hsync(struct w100fb_par *par);
-static void w100_init_graphic_engine(struct w100fb_par *par);
-struct w100_pll_info *w100_get_xtal_table(unsigned int freq);
-
-/* Pseudo palette size */
-#define MAX_PALETTES      16
-
-#define W100_SUSPEND_EXTMEM 0
-#define W100_SUSPEND_ALL    1
-
-#define BITS_PER_PIXEL    16
-
-/* Remapped addresses for base cfg, memmapped regs and the frame buffer itself */
-static void *remapped_base;
-static void *remapped_regs;
-static void *remapped_fbuf;
-
-#define REMAPPED_FB_LEN   0x15ffff
-
-/* This is the offset in the w100's address space we map the current
-   framebuffer memory to. We use the position of external memory as
-   we can remap internal memory to there if external isn't present. */
-#define W100_FB_BASE MEM_EXT_BASE_VALUE
-
-
-/*
- * Sysfs functions
- */
-static ssize_t flip_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct fb_info *info = dev_get_drvdata(dev);
-	struct w100fb_par *par=info->par;
-
-	return sprintf(buf, "%d\n",par->flip);
-}
-
-static ssize_t flip_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
-{
-	unsigned int flip;
-	struct fb_info *info = dev_get_drvdata(dev);
-	struct w100fb_par *par=info->par;
-
-	flip = simple_strtoul(buf, NULL, 10);
-
-	if (flip > 0)
-		par->flip = 1;
-	else
-		par->flip = 0;
-
-	w100_update_disable();
-	w100_set_dispregs(par);
-	w100_update_enable();
-
-	calc_hsync(par);
-
-	return count;
-}
-
-static DEVICE_ATTR(flip, 0644, flip_show, flip_store);
-
-static ssize_t w100fb_reg_read(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
-{
-	unsigned long regs, param;
-	regs = simple_strtoul(buf, NULL, 16);
-	param = readl(remapped_regs + regs);
-	printk("Read Register 0x%08lX: 0x%08lX\n", regs, param);
-	return count;
-}
-
-static DEVICE_ATTR(reg_read, 0200, NULL, w100fb_reg_read);
-
-static ssize_t w100fb_reg_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
-{
-	unsigned long regs, param;
-	sscanf(buf, "%lx %lx", &regs, &param);
-
-	if (regs <= 0x2000) {
-		printk("Write Register 0x%08lX: 0x%08lX\n", regs, param);
-		writel(param, remapped_regs + regs);
-	}
-
-	return count;
-}
-
-static DEVICE_ATTR(reg_write, 0200, NULL, w100fb_reg_write);
-
-
-static ssize_t fastpllclk_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct fb_info *info = dev_get_drvdata(dev);
-	struct w100fb_par *par=info->par;
-
-	return sprintf(buf, "%d\n",par->fastpll_mode);
-}
-
-static ssize_t fastpllclk_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct fb_info *info = dev_get_drvdata(dev);
-	struct w100fb_par *par=info->par;
-
-	if (simple_strtoul(buf, NULL, 10) > 0) {
-		par->fastpll_mode=1;
-		printk("w100fb: Using fast system clock (if possible)\n");
-	} else {
-		par->fastpll_mode=0;
-		printk("w100fb: Using normal system clock\n");
-	}
-
-	w100_init_clocks(par);
-	calc_hsync(par);
-
-	return count;
-}
-
-static DEVICE_ATTR(fastpllclk, 0644, fastpllclk_show, fastpllclk_store);
-
-/*
- * Some touchscreens need hsync information from the video driver to
- * function correctly. We export it here.
- */
-unsigned long w100fb_get_hsynclen(struct device *dev)
-{
-	struct fb_info *info = dev_get_drvdata(dev);
-	struct w100fb_par *par=info->par;
-
-	/* If display is blanked/suspended, hsync isn't active */
-	if (par->blanked)
-		return 0;
-	else
-		return par->hsync_len;
-}
-EXPORT_SYMBOL(w100fb_get_hsynclen);
-
-static void w100fb_clear_screen(struct w100fb_par *par)
-{
-	memset_io(remapped_fbuf + (W100_FB_BASE-MEM_WINDOW_BASE), 0, (par->xres * par->yres * BITS_PER_PIXEL/8));
-}
-
-
-/*
- * Set a palette value from rgb components
- */
-static int w100fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
-			     u_int trans, struct fb_info *info)
-{
-	unsigned int val;
-	int ret = 1;
-
-	/*
-	 * If greyscale is true, then we convert the RGB value
-	 * to greyscale no matter what visual we are using.
-	 */
-	if (info->var.grayscale)
-		red = green = blue = (19595 * red + 38470 * green + 7471 * blue) >> 16;
-
-	/*
-	 * 16-bit True Colour.  We encode the RGB value
-	 * according to the RGB bitfield information.
-	 */
-	if (regno < MAX_PALETTES) {
-		u32 *pal = info->pseudo_palette;
-
-		val = (red & 0xf800) | ((green & 0xfc00) >> 5) | ((blue & 0xf800) >> 11);
-		pal[regno] = val;
-		ret = 0;
-	}
-	return ret;
-}
-
-
-/*
- * Blank the display based on value in blank_mode
- */
-static int w100fb_blank(int blank_mode, struct fb_info *info)
-{
-	struct w100fb_par *par = info->par;
-	struct w100_tg_info *tg = par->mach->tg;
-
-	switch(blank_mode) {
-
- 	case FB_BLANK_NORMAL:         /* Normal blanking */
-	case FB_BLANK_VSYNC_SUSPEND:  /* VESA blank (vsync off) */
-	case FB_BLANK_HSYNC_SUSPEND:  /* VESA blank (hsync off) */
- 	case FB_BLANK_POWERDOWN:      /* Poweroff */
-  		if (par->blanked == 0) {
-			if(tg && tg->suspend)
-				tg->suspend(par);
-			par->blanked = 1;
-  		}
-  		break;
-
- 	case FB_BLANK_UNBLANK: /* Unblanking */
-  		if (par->blanked != 0) {
-			if(tg && tg->resume)
-				tg->resume(par);
-			par->blanked = 0;
-  		}
-  		break;
- 	}
-	return 0;
-}
-
-
-static void w100_fifo_wait(int entries)
-{
-	union rbbm_status_u status;
-	int i;
-
-	for (i = 0; i < 2000000; i++) {
-		status.val = readl(remapped_regs + mmRBBM_STATUS);
-		if (status.f.cmdfifo_avail >= entries)
-			return;
-		udelay(1);
-	}
-	printk(KERN_ERR "w100fb: FIFO Timeout!\n");
-}
-
-
-static int w100fb_sync(struct fb_info *info)
-{
-	union rbbm_status_u status;
-	int i;
-
-	for (i = 0; i < 2000000; i++) {
-		status.val = readl(remapped_regs + mmRBBM_STATUS);
-		if (!status.f.gui_active)
-			return 0;
-		udelay(1);
-	}
-	printk(KERN_ERR "w100fb: Graphic engine timeout!\n");
-	return -EBUSY;
-}
-
-
-static void w100_init_graphic_engine(struct w100fb_par *par)
-{
-	union dp_gui_master_cntl_u gmc;
-	union dp_mix_u dp_mix;
-	union dp_datatype_u dp_datatype;
-	union dp_cntl_u dp_cntl;
-
-	w100_fifo_wait(4);
-	writel(W100_FB_BASE, remapped_regs + mmDST_OFFSET);
-	writel(par->xres, remapped_regs + mmDST_PITCH);
-	writel(W100_FB_BASE, remapped_regs + mmSRC_OFFSET);
-	writel(par->xres, remapped_regs + mmSRC_PITCH);
-
-	w100_fifo_wait(3);
-	writel(0, remapped_regs + mmSC_TOP_LEFT);
-	writel((par->yres << 16) | par->xres, remapped_regs + mmSC_BOTTOM_RIGHT);
-	writel(0x1fff1fff, remapped_regs + mmSRC_SC_BOTTOM_RIGHT);
-
-	w100_fifo_wait(4);
-	dp_cntl.val = 0;
-	dp_cntl.f.dst_x_dir = 1;
-	dp_cntl.f.dst_y_dir = 1;
-	dp_cntl.f.src_x_dir = 1;
-	dp_cntl.f.src_y_dir = 1;
-	dp_cntl.f.dst_major_x = 1;
-	dp_cntl.f.src_major_x = 1;
-	writel(dp_cntl.val, remapped_regs + mmDP_CNTL);
-
-	gmc.val = 0;
-	gmc.f.gmc_src_pitch_offset_cntl = 1;
-	gmc.f.gmc_dst_pitch_offset_cntl = 1;
-	gmc.f.gmc_src_clipping = 1;
-	gmc.f.gmc_dst_clipping = 1;
-	gmc.f.gmc_brush_datatype = GMC_BRUSH_NONE;
-	gmc.f.gmc_dst_datatype = 3; /* from DstType_16Bpp_444 */
-	gmc.f.gmc_src_datatype = SRC_DATATYPE_EQU_DST;
-	gmc.f.gmc_byte_pix_order = 1;
-	gmc.f.gmc_default_sel = 0;
-	gmc.f.gmc_rop3 = ROP3_SRCCOPY;
-	gmc.f.gmc_dp_src_source = DP_SRC_MEM_RECTANGULAR;
-	gmc.f.gmc_clr_cmp_fcn_dis = 1;
-	gmc.f.gmc_wr_msk_dis = 1;
-	gmc.f.gmc_dp_op = DP_OP_ROP;
-	writel(gmc.val, remapped_regs + mmDP_GUI_MASTER_CNTL);
-
-	dp_datatype.val = dp_mix.val = 0;
-	dp_datatype.f.dp_dst_datatype = gmc.f.gmc_dst_datatype;
-	dp_datatype.f.dp_brush_datatype = gmc.f.gmc_brush_datatype;
-	dp_datatype.f.dp_src2_type = 0;
-	dp_datatype.f.dp_src2_datatype = gmc.f.gmc_src_datatype;
-	dp_datatype.f.dp_src_datatype = gmc.f.gmc_src_datatype;
-	dp_datatype.f.dp_byte_pix_order = gmc.f.gmc_byte_pix_order;
-	writel(dp_datatype.val, remapped_regs + mmDP_DATATYPE);
-
-	dp_mix.f.dp_src_source = gmc.f.gmc_dp_src_source;
-	dp_mix.f.dp_src2_source = 1;
-	dp_mix.f.dp_rop3 = gmc.f.gmc_rop3;
-	dp_mix.f.dp_op = gmc.f.gmc_dp_op;
-	writel(dp_mix.val, remapped_regs + mmDP_MIX);
-}
-
-
-static void w100fb_fillrect(struct fb_info *info,
-                            const struct fb_fillrect *rect)
-{
-	union dp_gui_master_cntl_u gmc;
-
-	if (info->state != FBINFO_STATE_RUNNING)
-		return;
-	if (info->flags & FBINFO_HWACCEL_DISABLED) {
-		cfb_fillrect(info, rect);
-		return;
-	}
-
-	gmc.val = readl(remapped_regs + mmDP_GUI_MASTER_CNTL);
-	gmc.f.gmc_rop3 = ROP3_PATCOPY;
-	gmc.f.gmc_brush_datatype = GMC_BRUSH_SOLID_COLOR;
-	w100_fifo_wait(2);
-	writel(gmc.val, remapped_regs + mmDP_GUI_MASTER_CNTL);
-	writel(rect->color, remapped_regs + mmDP_BRUSH_FRGD_CLR);
-
-	w100_fifo_wait(2);
-	writel((rect->dy << 16) | (rect->dx & 0xffff), remapped_regs + mmDST_Y_X);
-	writel((rect->width << 16) | (rect->height & 0xffff),
-	       remapped_regs + mmDST_WIDTH_HEIGHT);
-}
-
-
-static void w100fb_copyarea(struct fb_info *info,
-                            const struct fb_copyarea *area)
-{
-	u32 dx = area->dx, dy = area->dy, sx = area->sx, sy = area->sy;
-	u32 h = area->height, w = area->width;
-	union dp_gui_master_cntl_u gmc;
-
-	if (info->state != FBINFO_STATE_RUNNING)
-		return;
-	if (info->flags & FBINFO_HWACCEL_DISABLED) {
-		cfb_copyarea(info, area);
-		return;
-	}
-
-	gmc.val = readl(remapped_regs + mmDP_GUI_MASTER_CNTL);
-	gmc.f.gmc_rop3 = ROP3_SRCCOPY;
-	gmc.f.gmc_brush_datatype = GMC_BRUSH_NONE;
-	w100_fifo_wait(1);
-	writel(gmc.val, remapped_regs + mmDP_GUI_MASTER_CNTL);
-
-	w100_fifo_wait(3);
-	writel((sy << 16) | (sx & 0xffff), remapped_regs + mmSRC_Y_X);
-	writel((dy << 16) | (dx & 0xffff), remapped_regs + mmDST_Y_X);
-	writel((w << 16) | (h & 0xffff), remapped_regs + mmDST_WIDTH_HEIGHT);
-}
-
-
-/*
- *  Change the resolution by calling the appropriate hardware functions
- */
-static void w100fb_activate_var(struct w100fb_par *par)
-{
-	struct w100_tg_info *tg = par->mach->tg;
-
-	w100_pwm_setup(par);
-	w100_setup_memory(par);
-	w100_init_clocks(par);
-	w100fb_clear_screen(par);
-	w100_vsync();
-
-	w100_update_disable();
-	w100_init_lcd(par);
-	w100_set_dispregs(par);
-	w100_update_enable();
-	w100_init_graphic_engine(par);
-
-	calc_hsync(par);
-
-	if (!par->blanked && tg && tg->change)
-		tg->change(par);
-}
-
-
-/* Select the smallest mode that allows the desired resolution to be
- * displayed. If desired, the x and y parameters can be rounded up to
- * match the selected mode.
- */
-static struct w100_mode *w100fb_get_mode(struct w100fb_par *par, unsigned int *x, unsigned int *y, int saveval)
-{
-	struct w100_mode *mode = NULL;
-	struct w100_mode *modelist = par->mach->modelist;
-	unsigned int best_x = 0xffffffff, best_y = 0xffffffff;
-	unsigned int i;
-
-	for (i = 0 ; i < par->mach->num_modes ; i++) {
-		if (modelist[i].xres >= *x && modelist[i].yres >= *y &&
-				modelist[i].xres < best_x && modelist[i].yres < best_y) {
-			best_x = modelist[i].xres;
-			best_y = modelist[i].yres;
-			mode = &modelist[i];
-		} else if(modelist[i].xres >= *y && modelist[i].yres >= *x &&
-		        modelist[i].xres < best_y && modelist[i].yres < best_x) {
-			best_x = modelist[i].yres;
-			best_y = modelist[i].xres;
-			mode = &modelist[i];
-		}
-	}
-
-	if (mode && saveval) {
-		*x = best_x;
-		*y = best_y;
-	}
-
-	return mode;
-}
-
-
-/*
- *  w100fb_check_var():
- *  Get the video params out of 'var'. If a value doesn't fit, round it up,
- *  if it's too big, return -EINVAL.
- */
-static int w100fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
-{
-	struct w100fb_par *par=info->par;
-
-	if(!w100fb_get_mode(par, &var->xres, &var->yres, 1))
-		return -EINVAL;
-
-	if (par->mach->mem && ((var->xres*var->yres*BITS_PER_PIXEL/8) > (par->mach->mem->size+1)))
-		return -EINVAL;
-
-	if (!par->mach->mem && ((var->xres*var->yres*BITS_PER_PIXEL/8) > (MEM_INT_SIZE+1)))
-		return -EINVAL;
-
-	var->xres_virtual = max(var->xres_virtual, var->xres);
-	var->yres_virtual = max(var->yres_virtual, var->yres);
-
-	if (var->bits_per_pixel > BITS_PER_PIXEL)
-		return -EINVAL;
-	else
-		var->bits_per_pixel = BITS_PER_PIXEL;
-
-	var->red.offset = 11;
-	var->red.length = 5;
-	var->green.offset = 5;
-	var->green.length = 6;
-	var->blue.offset = 0;
-	var->blue.length = 5;
-	var->transp.offset = var->transp.length = 0;
-
-	var->nonstd = 0;
-	var->height = -1;
-	var->width = -1;
-	var->vmode = FB_VMODE_NONINTERLACED;
-	var->sync = 0;
-	var->pixclock = 0x04;  /* 171521; */
-
-	return 0;
-}
-
-
-/*
- * w100fb_set_par():
- *	Set the user defined part of the display for the specified console
- *  by looking at the values in info.var
- */
-static int w100fb_set_par(struct fb_info *info)
-{
-	struct w100fb_par *par=info->par;
-
-	if (par->xres != info->var.xres || par->yres != info->var.yres)	{
-		par->xres = info->var.xres;
-		par->yres = info->var.yres;
-		par->mode = w100fb_get_mode(par, &par->xres, &par->yres, 0);
-
-		info->fix.visual = FB_VISUAL_TRUECOLOR;
-		info->fix.ypanstep = 0;
-		info->fix.ywrapstep = 0;
-		info->fix.line_length = par->xres * BITS_PER_PIXEL / 8;
-
-		mutex_lock(&info->mm_lock);
-		if ((par->xres*par->yres*BITS_PER_PIXEL/8) > (MEM_INT_SIZE+1)) {
-			par->extmem_active = 1;
-			info->fix.smem_len = par->mach->mem->size+1;
-		} else {
-			par->extmem_active = 0;
-			info->fix.smem_len = MEM_INT_SIZE+1;
-		}
-		mutex_unlock(&info->mm_lock);
-
-		w100fb_activate_var(par);
-	}
-	return 0;
-}
-
-
-/*
- *  Frame buffer operations
- */
-static struct fb_ops w100fb_ops = {
-	.owner        = THIS_MODULE,
-	.fb_check_var = w100fb_check_var,
-	.fb_set_par   = w100fb_set_par,
-	.fb_setcolreg = w100fb_setcolreg,
-	.fb_blank     = w100fb_blank,
-	.fb_fillrect  = w100fb_fillrect,
-	.fb_copyarea  = w100fb_copyarea,
-	.fb_imageblit = cfb_imageblit,
-	.fb_sync      = w100fb_sync,
-};
-
-#ifdef CONFIG_PM
-static void w100fb_save_vidmem(struct w100fb_par *par)
-{
-	int memsize;
-
-	if (par->extmem_active) {
-		memsize=par->mach->mem->size;
-		par->saved_extmem = vmalloc(memsize);
-		if (par->saved_extmem)
-			memcpy_fromio(par->saved_extmem, remapped_fbuf + (W100_FB_BASE-MEM_WINDOW_BASE), memsize);
-	}
-	memsize=MEM_INT_SIZE;
-	par->saved_intmem = vmalloc(memsize);
-	if (par->saved_intmem && par->extmem_active)
-		memcpy_fromio(par->saved_intmem, remapped_fbuf + (W100_FB_BASE-MEM_INT_BASE_VALUE), memsize);
-	else if (par->saved_intmem)
-		memcpy_fromio(par->saved_intmem, remapped_fbuf + (W100_FB_BASE-MEM_WINDOW_BASE), memsize);
-}
-
-static void w100fb_restore_vidmem(struct w100fb_par *par)
-{
-	int memsize;
-
-	if (par->extmem_active && par->saved_extmem) {
-		memsize=par->mach->mem->size;
-		memcpy_toio(remapped_fbuf + (W100_FB_BASE-MEM_WINDOW_BASE), par->saved_extmem, memsize);
-		vfree(par->saved_extmem);
-	}
-	if (par->saved_intmem) {
-		memsize=MEM_INT_SIZE;
-		if (par->extmem_active)
-			memcpy_toio(remapped_fbuf + (W100_FB_BASE-MEM_INT_BASE_VALUE), par->saved_intmem, memsize);
-		else
-			memcpy_toio(remapped_fbuf + (W100_FB_BASE-MEM_WINDOW_BASE), par->saved_intmem, memsize);
-		vfree(par->saved_intmem);
-	}
-}
-
-static int w100fb_suspend(struct platform_device *dev, pm_message_t state)
-{
-	struct fb_info *info = platform_get_drvdata(dev);
-	struct w100fb_par *par=info->par;
-	struct w100_tg_info *tg = par->mach->tg;
-
-	w100fb_save_vidmem(par);
-	if(tg && tg->suspend)
-		tg->suspend(par);
-	w100_suspend(W100_SUSPEND_ALL);
-	par->blanked = 1;
-
-	return 0;
-}
-
-static int w100fb_resume(struct platform_device *dev)
-{
-	struct fb_info *info = platform_get_drvdata(dev);
-	struct w100fb_par *par=info->par;
-	struct w100_tg_info *tg = par->mach->tg;
-
-	w100_hw_init(par);
-	w100fb_activate_var(par);
-	w100fb_restore_vidmem(par);
-	if(tg && tg->resume)
-		tg->resume(par);
-	par->blanked = 0;
-
-	return 0;
-}
-#else
-#define w100fb_suspend  NULL
-#define w100fb_resume   NULL
-#endif
-
-
-int w100fb_probe(struct platform_device *pdev)
-{
-	int err = -EIO;
-	struct w100fb_mach_info *inf;
-	struct fb_info *info = NULL;
-	struct w100fb_par *par;
-	struct resource *mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	unsigned int chip_id;
-
-	if (!mem)
-		return -EINVAL;
-
-	/* Remap the chip base address */
-	remapped_base = ioremap_nocache(mem->start+W100_CFG_BASE, W100_CFG_LEN);
-	if (remapped_base == NULL)
-		goto out;
-
-	/* Map the register space */
-	remapped_regs = ioremap_nocache(mem->start+W100_REG_BASE, W100_REG_LEN);
-	if (remapped_regs == NULL)
-		goto out;
-
-	/* Identify the chip */
-	printk("Found ");
-	chip_id = readl(remapped_regs + mmCHIP_ID);
-	switch(chip_id) {
-		case CHIP_ID_W100:  printk("w100");  break;
-		case CHIP_ID_W3200: printk("w3200"); break;
-		case CHIP_ID_W3220: printk("w3220"); break;
-		default:
-			printk("Unknown imageon chip ID\n");
-			err = -ENODEV;
-			goto out;
-	}
-	printk(" at 0x%08lx.\n", (unsigned long) mem->start+W100_CFG_BASE);
-
-	/* Remap the framebuffer */
-	remapped_fbuf = ioremap_nocache(mem->start+MEM_WINDOW_BASE, MEM_WINDOW_SIZE);
-	if (remapped_fbuf == NULL)
-		goto out;
-
-	info=framebuffer_alloc(sizeof(struct w100fb_par), &pdev->dev);
-	if (!info) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	par = info->par;
-	platform_set_drvdata(pdev, info);
-
-	inf = dev_get_platdata(&pdev->dev);
-	par->chip_id = chip_id;
-	par->mach = inf;
-	par->fastpll_mode = 0;
-	par->blanked = 0;
-
-	par->pll_table=w100_get_xtal_table(inf->xtal_freq);
-	if (!par->pll_table) {
-		printk(KERN_ERR "No matching Xtal definition found\n");
-		err = -EINVAL;
-		goto out;
-	}
-
-	info->pseudo_palette = kmalloc(sizeof (u32) * MAX_PALETTES, GFP_KERNEL);
-	if (!info->pseudo_palette) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	info->fbops = &w100fb_ops;
-	info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
-		FBINFO_HWACCEL_FILLRECT;
-	info->node = -1;
-	info->screen_base = remapped_fbuf + (W100_FB_BASE-MEM_WINDOW_BASE);
-	info->screen_size = REMAPPED_FB_LEN;
-
-	strcpy(info->fix.id, "w100fb");
-	info->fix.type = FB_TYPE_PACKED_PIXELS;
-	info->fix.type_aux = 0;
-	info->fix.accel = FB_ACCEL_NONE;
-	info->fix.smem_start = mem->start+W100_FB_BASE;
-	info->fix.mmio_start = mem->start+W100_REG_BASE;
-	info->fix.mmio_len = W100_REG_LEN;
-
-	if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	par->mode = &inf->modelist[0];
-	if(inf->init_mode & INIT_MODE_ROTATED) {
-		info->var.xres = par->mode->yres;
-		info->var.yres = par->mode->xres;
-	}
-	else {
-		info->var.xres = par->mode->xres;
-		info->var.yres = par->mode->yres;
-	}
-
-	if(inf->init_mode &= INIT_MODE_FLIPPED)
-		par->flip = 1;
-	else
-		par->flip = 0;
-
-	info->var.xres_virtual = info->var.xres;
-	info->var.yres_virtual = info->var.yres;
-	info->var.pixclock = 0x04;  /* 171521; */
-	info->var.sync = 0;
-	info->var.grayscale = 0;
-	info->var.xoffset = info->var.yoffset = 0;
-	info->var.accel_flags = 0;
-	info->var.activate = FB_ACTIVATE_NOW;
-
-	w100_hw_init(par);
-
-	if (w100fb_check_var(&info->var, info) < 0) {
-		err = -EINVAL;
-		goto out;
-	}
-
-	if (register_framebuffer(info) < 0) {
-		err = -EINVAL;
-		goto out;
-	}
-
-	err = device_create_file(&pdev->dev, &dev_attr_fastpllclk);
-	err |= device_create_file(&pdev->dev, &dev_attr_reg_read);
-	err |= device_create_file(&pdev->dev, &dev_attr_reg_write);
-	err |= device_create_file(&pdev->dev, &dev_attr_flip);
-
-	if (err != 0)
-		fb_warn(info, "failed to register attributes (%d)\n", err);
-
-	fb_info(info, "%s frame buffer device\n", info->fix.id);
-	return 0;
-out:
-	if (info) {
-		fb_dealloc_cmap(&info->cmap);
-		kfree(info->pseudo_palette);
-	}
-	if (remapped_fbuf != NULL)
-		iounmap(remapped_fbuf);
-	if (remapped_regs != NULL)
-		iounmap(remapped_regs);
-	if (remapped_base != NULL)
-		iounmap(remapped_base);
-	if (info)
-		framebuffer_release(info);
-	return err;
-}
-
-
-static int w100fb_remove(struct platform_device *pdev)
-{
-	struct fb_info *info = platform_get_drvdata(pdev);
-	struct w100fb_par *par=info->par;
-
-	device_remove_file(&pdev->dev, &dev_attr_fastpllclk);
-	device_remove_file(&pdev->dev, &dev_attr_reg_read);
-	device_remove_file(&pdev->dev, &dev_attr_reg_write);
-	device_remove_file(&pdev->dev, &dev_attr_flip);
-
-	unregister_framebuffer(info);
-
-	vfree(par->saved_intmem);
-	vfree(par->saved_extmem);
-	kfree(info->pseudo_palette);
-	fb_dealloc_cmap(&info->cmap);
-
-	iounmap(remapped_base);
-	iounmap(remapped_regs);
-	iounmap(remapped_fbuf);
-
-	framebuffer_release(info);
-
-	return 0;
-}
-
-
-/* ------------------- chipset specific functions -------------------------- */
-
-
-static void w100_soft_reset(void)
-{
-	u16 val = readw((u16 *) remapped_base + cfgSTATUS);
-	writew(val | 0x08, (u16 *) remapped_base + cfgSTATUS);
-	udelay(100);
-	writew(0x00, (u16 *) remapped_base + cfgSTATUS);
-	udelay(100);
-}
-
-static void w100_update_disable(void)
-{
-	union disp_db_buf_cntl_wr_u disp_db_buf_wr_cntl;
-
-	/* Prevent display updates */
-	disp_db_buf_wr_cntl.f.db_buf_cntl = 0x1e;
-	disp_db_buf_wr_cntl.f.update_db_buf = 0;
-	disp_db_buf_wr_cntl.f.en_db_buf = 0;
-	writel((u32) (disp_db_buf_wr_cntl.val), remapped_regs + mmDISP_DB_BUF_CNTL);
-}
-
-static void w100_update_enable(void)
-{
-	union disp_db_buf_cntl_wr_u disp_db_buf_wr_cntl;
-
-	/* Enable display updates */
-	disp_db_buf_wr_cntl.f.db_buf_cntl = 0x1e;
-	disp_db_buf_wr_cntl.f.update_db_buf = 1;
-	disp_db_buf_wr_cntl.f.en_db_buf = 1;
-	writel((u32) (disp_db_buf_wr_cntl.val), remapped_regs + mmDISP_DB_BUF_CNTL);
-}
-
-unsigned long w100fb_gpio_read(int port)
-{
-	unsigned long value;
-
-	if (port==W100_GPIO_PORT_A)
-		value = readl(remapped_regs + mmGPIO_DATA);
-	else
-		value = readl(remapped_regs + mmGPIO_DATA2);
-
-	return value;
-}
-
-void w100fb_gpio_write(int port, unsigned long value)
-{
-	if (port==W100_GPIO_PORT_A)
-		writel(value, remapped_regs + mmGPIO_DATA);
-	else
-		writel(value, remapped_regs + mmGPIO_DATA2);
-}
-EXPORT_SYMBOL(w100fb_gpio_read);
-EXPORT_SYMBOL(w100fb_gpio_write);
-
-/*
- * Initialization of critical w100 hardware
- */
-static void w100_hw_init(struct w100fb_par *par)
-{
-	u32 temp32;
-	union cif_cntl_u cif_cntl;
-	union intf_cntl_u intf_cntl;
-	union cfgreg_base_u cfgreg_base;
-	union wrap_top_dir_u wrap_top_dir;
-	union cif_read_dbg_u cif_read_dbg;
-	union cpu_defaults_u cpu_default;
-	union cif_write_dbg_u cif_write_dbg;
-	union wrap_start_dir_u wrap_start_dir;
-	union cif_io_u cif_io;
-	struct w100_gpio_regs *gpio = par->mach->gpio;
-
-	w100_soft_reset();
-
-	/* This is what the fpga_init code does on reset. May be wrong
-	   but there is little info available */
-	writel(0x31, remapped_regs + mmSCRATCH_UMSK);
-	for (temp32 = 0; temp32 < 10000; temp32++)
-		readl(remapped_regs + mmSCRATCH_UMSK);
-	writel(0x30, remapped_regs + mmSCRATCH_UMSK);
-
-	/* Set up CIF */
-	cif_io.val = defCIF_IO;
-	writel((u32)(cif_io.val), remapped_regs + mmCIF_IO);
-
-	cif_write_dbg.val = readl(remapped_regs + mmCIF_WRITE_DBG);
-	cif_write_dbg.f.dis_packer_ful_during_rbbm_timeout = 0;
-	cif_write_dbg.f.en_dword_split_to_rbbm = 1;
-	cif_write_dbg.f.dis_timeout_during_rbbm = 1;
-	writel((u32) (cif_write_dbg.val), remapped_regs + mmCIF_WRITE_DBG);
-
-	cif_read_dbg.val = readl(remapped_regs + mmCIF_READ_DBG);
-	cif_read_dbg.f.dis_rd_same_byte_to_trig_fetch = 1;
-	writel((u32) (cif_read_dbg.val), remapped_regs + mmCIF_READ_DBG);
-
-	cif_cntl.val = readl(remapped_regs + mmCIF_CNTL);
-	cif_cntl.f.dis_system_bits = 1;
-	cif_cntl.f.dis_mr = 1;
-	cif_cntl.f.en_wait_to_compensate_dq_prop_dly = 0;
-	cif_cntl.f.intb_oe = 1;
-	cif_cntl.f.interrupt_active_high = 1;
-	writel((u32) (cif_cntl.val), remapped_regs + mmCIF_CNTL);
-
-	/* Setup cfgINTF_CNTL and cfgCPU defaults */
-	intf_cntl.val = defINTF_CNTL;
-	intf_cntl.f.ad_inc_a = 1;
-	intf_cntl.f.ad_inc_b = 1;
-	intf_cntl.f.rd_data_rdy_a = 0;
-	intf_cntl.f.rd_data_rdy_b = 0;
-	writeb((u8) (intf_cntl.val), remapped_base + cfgINTF_CNTL);
-
-	cpu_default.val = defCPU_DEFAULTS;
-	cpu_default.f.access_ind_addr_a = 1;
-	cpu_default.f.access_ind_addr_b = 1;
-	cpu_default.f.access_scratch_reg = 1;
-	cpu_default.f.transition_size = 0;
-	writeb((u8) (cpu_default.val), remapped_base + cfgCPU_DEFAULTS);
-
-	/* set up the apertures */
-	writeb((u8) (W100_REG_BASE >> 16), remapped_base + cfgREG_BASE);
-
-	cfgreg_base.val = defCFGREG_BASE;
-	cfgreg_base.f.cfgreg_base = W100_CFG_BASE;
-	writel((u32) (cfgreg_base.val), remapped_regs + mmCFGREG_BASE);
-
-	wrap_start_dir.val = defWRAP_START_DIR;
-	wrap_start_dir.f.start_addr = WRAP_BUF_BASE_VALUE >> 1;
-	writel((u32) (wrap_start_dir.val), remapped_regs + mmWRAP_START_DIR);
-
-	wrap_top_dir.val = defWRAP_TOP_DIR;
-	wrap_top_dir.f.top_addr = WRAP_BUF_TOP_VALUE >> 1;
-	writel((u32) (wrap_top_dir.val), remapped_regs + mmWRAP_TOP_DIR);
-
-	writel((u32) 0x2440, remapped_regs + mmRBBM_CNTL);
-
-	/* Set the hardware to 565 colour */
-	temp32 = readl(remapped_regs + mmDISP_DEBUG2);
-	temp32 &= 0xff7fffff;
-	temp32 |= 0x00800000;
-	writel(temp32, remapped_regs + mmDISP_DEBUG2);
-
-	/* Initialise the GPIO lines */
-	if (gpio) {
-		writel(gpio->init_data1, remapped_regs + mmGPIO_DATA);
-		writel(gpio->init_data2, remapped_regs + mmGPIO_DATA2);
-		writel(gpio->gpio_dir1,  remapped_regs + mmGPIO_CNTL1);
-		writel(gpio->gpio_oe1,   remapped_regs + mmGPIO_CNTL2);
-		writel(gpio->gpio_dir2,  remapped_regs + mmGPIO_CNTL3);
-		writel(gpio->gpio_oe2,   remapped_regs + mmGPIO_CNTL4);
-	}
-}
-
-
-struct power_state {
-	union clk_pin_cntl_u clk_pin_cntl;
-	union pll_ref_fb_div_u pll_ref_fb_div;
-	union pll_cntl_u pll_cntl;
-	union sclk_cntl_u sclk_cntl;
-	union pclk_cntl_u pclk_cntl;
-	union pwrmgt_cntl_u pwrmgt_cntl;
-	int auto_mode;  /* system clock auto changing? */
-};
-
-
-static struct power_state w100_pwr_state;
-
-/* The PLL Fout is determined by (XtalFreq/(M+1)) * ((N_int+1) + (N_fac/8)) */
-
-/* 12.5MHz Crystal PLL Table */
-static struct w100_pll_info xtal_12500000[] = {
-	/*freq     M   N_int    N_fac  tfgoal  lock_time */
-	{ 50,      0,   1,       0,     0xe0,        56},  /*  50.00 MHz */
-	{ 75,      0,   5,       0,     0xde,        37},  /*  75.00 MHz */
-	{100,      0,   7,       0,     0xe0,        28},  /* 100.00 MHz */
-	{125,      0,   9,       0,     0xe0,        22},  /* 125.00 MHz */
-	{150,      0,   11,      0,     0xe0,        17},  /* 150.00 MHz */
-	{  0,      0,   0,       0,        0,         0},  /* Terminator */
-};
-
-/* 14.318MHz Crystal PLL Table */
-static struct w100_pll_info xtal_14318000[] = {
-	/*freq     M   N_int    N_fac  tfgoal  lock_time */
-	{ 40,      4,   13,      0,     0xe0,        80}, /* tfgoal guessed */
-	{ 50,      1,   6,       0,     0xe0,	     64}, /*  50.05 MHz */
-	{ 57,      2,   11,      0,     0xe0,        53}, /* tfgoal guessed */
-	{ 75,      0,   4,       3,     0xe0,	     43}, /*  75.08 MHz */
-	{100,      0,   6,       0,     0xe0,        32}, /* 100.10 MHz */
-	{  0,      0,   0,       0,        0,         0},
-};
-
-/* 16MHz Crystal PLL Table */
-static struct w100_pll_info xtal_16000000[] = {
-	/*freq     M   N_int    N_fac  tfgoal  lock_time */
-	{ 72,      1,   8,       0,     0xe0,        48}, /* tfgoal guessed */
-	{ 80,      1,   9,       0,     0xe0,        13}, /* tfgoal guessed */
-	{ 95,      1,   10,      7,     0xe0,        38}, /* tfgoal guessed */
-	{ 96,      1,   11,      0,     0xe0,        36}, /* tfgoal guessed */
-	{  0,      0,   0,       0,        0,         0},
-};
-
-static struct pll_entries {
-	int xtal_freq;
-	struct w100_pll_info *pll_table;
-} w100_pll_tables[] = {
-	{ 12500000, &xtal_12500000[0] },
-	{ 14318000, &xtal_14318000[0] },
-	{ 16000000, &xtal_16000000[0] },
-	{ 0 },
-};
-
-struct w100_pll_info *w100_get_xtal_table(unsigned int freq)
-{
-	struct pll_entries *pll_entry = w100_pll_tables;
-
-	do {
-		if (freq == pll_entry->xtal_freq)
-			return pll_entry->pll_table;
-		pll_entry++;
-	} while (pll_entry->xtal_freq);
-	return 0;
-}
-
-
-static unsigned int w100_get_testcount(unsigned int testclk_sel)
-{
-	union clk_test_cntl_u clk_test_cntl;
-
-	udelay(5);
-
-	/* Select the test clock source and reset */
-	clk_test_cntl.f.start_check_freq = 0x0;
-	clk_test_cntl.f.testclk_sel = testclk_sel;
-	clk_test_cntl.f.tstcount_rst = 0x1; /* set reset */
-	writel((u32) (clk_test_cntl.val), remapped_regs + mmCLK_TEST_CNTL);
-
-	clk_test_cntl.f.tstcount_rst = 0x0; /* clear reset */
-	writel((u32) (clk_test_cntl.val), remapped_regs + mmCLK_TEST_CNTL);
-
-	/* Run clock test */
-	clk_test_cntl.f.start_check_freq = 0x1;
-	writel((u32) (clk_test_cntl.val), remapped_regs + mmCLK_TEST_CNTL);
-
-	/* Give the test time to complete */
-	udelay(20);
-
-	/* Return the result */
-	clk_test_cntl.val = readl(remapped_regs + mmCLK_TEST_CNTL);
-	clk_test_cntl.f.start_check_freq = 0x0;
-	writel((u32) (clk_test_cntl.val), remapped_regs + mmCLK_TEST_CNTL);
-
-	return clk_test_cntl.f.test_count;
-}
-
-
-static int w100_pll_adjust(struct w100_pll_info *pll)
-{
-	unsigned int tf80;
-	unsigned int tf20;
-
-	/* Initial Settings */
-	w100_pwr_state.pll_cntl.f.pll_pwdn = 0x0;     /* power down */
-	w100_pwr_state.pll_cntl.f.pll_reset = 0x0;    /* not reset */
-	w100_pwr_state.pll_cntl.f.pll_tcpoff = 0x1;   /* Hi-Z */
-	w100_pwr_state.pll_cntl.f.pll_pvg = 0x0;      /* VCO gain = 0 */
-	w100_pwr_state.pll_cntl.f.pll_vcofr = 0x0;    /* VCO frequency range control = off */
-	w100_pwr_state.pll_cntl.f.pll_ioffset = 0x0;  /* current offset inside VCO = 0 */
-	w100_pwr_state.pll_cntl.f.pll_ring_off = 0x0;
-
-	/* Wai Ming 80 percent of VDD 1.3V gives 1.04V, minimum operating voltage is 1.08V
-	 * therefore, commented out the following lines
-	 * tf80 meant tf100
-	 */
-	do {
-		/* set VCO input = 0.8 * VDD */
-		w100_pwr_state.pll_cntl.f.pll_dactal = 0xd;
-		writel((u32) (w100_pwr_state.pll_cntl.val), remapped_regs + mmPLL_CNTL);
-
-		tf80 = w100_get_testcount(TESTCLK_SRC_PLL);
-		if (tf80 >= (pll->tfgoal)) {
-			/* set VCO input = 0.2 * VDD */
-			w100_pwr_state.pll_cntl.f.pll_dactal = 0x7;
-			writel((u32) (w100_pwr_state.pll_cntl.val), remapped_regs + mmPLL_CNTL);
-
-			tf20 = w100_get_testcount(TESTCLK_SRC_PLL);
-			if (tf20 <= (pll->tfgoal))
-				return 1;  /* Success */
-
-			if ((w100_pwr_state.pll_cntl.f.pll_vcofr == 0x0) &&
-				((w100_pwr_state.pll_cntl.f.pll_pvg == 0x7) ||
-				(w100_pwr_state.pll_cntl.f.pll_ioffset == 0x0))) {
-				/* slow VCO config */
-				w100_pwr_state.pll_cntl.f.pll_vcofr = 0x1;
-				w100_pwr_state.pll_cntl.f.pll_pvg = 0x0;
-				w100_pwr_state.pll_cntl.f.pll_ioffset = 0x0;
-				continue;
-			}
-		}
-		if ((w100_pwr_state.pll_cntl.f.pll_ioffset) < 0x3) {
-			w100_pwr_state.pll_cntl.f.pll_ioffset += 0x1;
-		} else if ((w100_pwr_state.pll_cntl.f.pll_pvg) < 0x7) {
-			w100_pwr_state.pll_cntl.f.pll_ioffset = 0x0;
-			w100_pwr_state.pll_cntl.f.pll_pvg += 0x1;
-		} else {
-			return 0;  /* Error */
-		}
-	} while(1);
-}
-
-
-/*
- * w100_pll_calibration
- */
-static int w100_pll_calibration(struct w100_pll_info *pll)
-{
-	int status;
-
-	status = w100_pll_adjust(pll);
-
-	/* PLL Reset And Lock */
-	/* set VCO input = 0.5 * VDD */
-	w100_pwr_state.pll_cntl.f.pll_dactal = 0xa;
-	writel((u32) (w100_pwr_state.pll_cntl.val), remapped_regs + mmPLL_CNTL);
-
-	udelay(1);  /* reset time */
-
-	/* enable charge pump */
-	w100_pwr_state.pll_cntl.f.pll_tcpoff = 0x0;  /* normal */
-	writel((u32) (w100_pwr_state.pll_cntl.val), remapped_regs + mmPLL_CNTL);
-
-	/* set VCO input = Hi-Z, disable DAC */
-	w100_pwr_state.pll_cntl.f.pll_dactal = 0x0;
-	writel((u32) (w100_pwr_state.pll_cntl.val), remapped_regs + mmPLL_CNTL);
-
-	udelay(400);  /* lock time */
-
-	/* PLL locked */
-
-	return status;
-}
-
-
-static int w100_pll_set_clk(struct w100_pll_info *pll)
-{
-	int status;
-
-	if (w100_pwr_state.auto_mode == 1)  /* auto mode */
-	{
-		w100_pwr_state.pwrmgt_cntl.f.pwm_fast_noml_hw_en = 0x0;  /* disable fast to normal */
-		w100_pwr_state.pwrmgt_cntl.f.pwm_noml_fast_hw_en = 0x0;  /* disable normal to fast */
-		writel((u32) (w100_pwr_state.pwrmgt_cntl.val), remapped_regs + mmPWRMGT_CNTL);
-	}
-
-	/* Set system clock source to XTAL whilst adjusting the PLL! */
-	w100_pwr_state.sclk_cntl.f.sclk_src_sel = CLK_SRC_XTAL;
-	writel((u32) (w100_pwr_state.sclk_cntl.val), remapped_regs + mmSCLK_CNTL);
-
-	w100_pwr_state.pll_ref_fb_div.f.pll_ref_div = pll->M;
-	w100_pwr_state.pll_ref_fb_div.f.pll_fb_div_int = pll->N_int;
-	w100_pwr_state.pll_ref_fb_div.f.pll_fb_div_frac = pll->N_fac;
-	w100_pwr_state.pll_ref_fb_div.f.pll_lock_time = pll->lock_time;
-	writel((u32) (w100_pwr_state.pll_ref_fb_div.val), remapped_regs + mmPLL_REF_FB_DIV);
-
-	w100_pwr_state.pwrmgt_cntl.f.pwm_mode_req = 0;
-	writel((u32) (w100_pwr_state.pwrmgt_cntl.val), remapped_regs + mmPWRMGT_CNTL);
-
-	status = w100_pll_calibration(pll);
-
-	if (w100_pwr_state.auto_mode == 1)  /* auto mode */
-	{
-		w100_pwr_state.pwrmgt_cntl.f.pwm_fast_noml_hw_en = 0x1;  /* reenable fast to normal */
-		w100_pwr_state.pwrmgt_cntl.f.pwm_noml_fast_hw_en = 0x1;  /* reenable normal to fast  */
-		writel((u32) (w100_pwr_state.pwrmgt_cntl.val), remapped_regs + mmPWRMGT_CNTL);
-	}
-	return status;
-}
-
-/* freq = target frequency of the PLL */
-static int w100_set_pll_freq(struct w100fb_par *par, unsigned int freq)
-{
-	struct w100_pll_info *pll = par->pll_table;
-
-	do {
-		if (freq == pll->freq) {
-			return w100_pll_set_clk(pll);
-		}
-		pll++;
-	} while(pll->freq);
-	return 0;
-}
-
-/* Set up an initial state.  Some values/fields set
-   here will be overwritten. */
-static void w100_pwm_setup(struct w100fb_par *par)
-{
-	w100_pwr_state.clk_pin_cntl.f.osc_en = 0x1;
-	w100_pwr_state.clk_pin_cntl.f.osc_gain = 0x1f;
-	w100_pwr_state.clk_pin_cntl.f.dont_use_xtalin = 0x0;
-	w100_pwr_state.clk_pin_cntl.f.xtalin_pm_en = 0x0;
-	w100_pwr_state.clk_pin_cntl.f.xtalin_dbl_en = par->mach->xtal_dbl ? 1 : 0;
-	w100_pwr_state.clk_pin_cntl.f.cg_debug = 0x0;
-	writel((u32) (w100_pwr_state.clk_pin_cntl.val), remapped_regs + mmCLK_PIN_CNTL);
-
-	w100_pwr_state.sclk_cntl.f.sclk_src_sel = CLK_SRC_XTAL;
-	w100_pwr_state.sclk_cntl.f.sclk_post_div_fast = 0x0;  /* Pfast = 1 */
-	w100_pwr_state.sclk_cntl.f.sclk_clkon_hys = 0x3;
-	w100_pwr_state.sclk_cntl.f.sclk_post_div_slow = 0x0;  /* Pslow = 1 */
-	w100_pwr_state.sclk_cntl.f.disp_cg_ok2switch_en = 0x0;
-	w100_pwr_state.sclk_cntl.f.sclk_force_reg = 0x0;    /* Dynamic */
-	w100_pwr_state.sclk_cntl.f.sclk_force_disp = 0x0;   /* Dynamic */
-	w100_pwr_state.sclk_cntl.f.sclk_force_mc = 0x0;     /* Dynamic */
-	w100_pwr_state.sclk_cntl.f.sclk_force_extmc = 0x0;  /* Dynamic */
-	w100_pwr_state.sclk_cntl.f.sclk_force_cp = 0x0;     /* Dynamic */
-	w100_pwr_state.sclk_cntl.f.sclk_force_e2 = 0x0;     /* Dynamic */
-	w100_pwr_state.sclk_cntl.f.sclk_force_e3 = 0x0;     /* Dynamic */
-	w100_pwr_state.sclk_cntl.f.sclk_force_idct = 0x0;   /* Dynamic */
-	w100_pwr_state.sclk_cntl.f.sclk_force_bist = 0x0;   /* Dynamic */
-	w100_pwr_state.sclk_cntl.f.busy_extend_cp = 0x0;
-	w100_pwr_state.sclk_cntl.f.busy_extend_e2 = 0x0;
-	w100_pwr_state.sclk_cntl.f.busy_extend_e3 = 0x0;
-	w100_pwr_state.sclk_cntl.f.busy_extend_idct = 0x0;
-	writel((u32) (w100_pwr_state.sclk_cntl.val), remapped_regs + mmSCLK_CNTL);
-
-	w100_pwr_state.pclk_cntl.f.pclk_src_sel = CLK_SRC_XTAL;
-	w100_pwr_state.pclk_cntl.f.pclk_post_div = 0x1;    /* P = 2 */
-	w100_pwr_state.pclk_cntl.f.pclk_force_disp = 0x0;  /* Dynamic */
-	writel((u32) (w100_pwr_state.pclk_cntl.val), remapped_regs + mmPCLK_CNTL);
-
-	w100_pwr_state.pll_ref_fb_div.f.pll_ref_div = 0x0;     /* M = 1 */
-	w100_pwr_state.pll_ref_fb_div.f.pll_fb_div_int = 0x0;  /* N = 1.0 */
-	w100_pwr_state.pll_ref_fb_div.f.pll_fb_div_frac = 0x0;
-	w100_pwr_state.pll_ref_fb_div.f.pll_reset_time = 0x5;
-	w100_pwr_state.pll_ref_fb_div.f.pll_lock_time = 0xff;
-	writel((u32) (w100_pwr_state.pll_ref_fb_div.val), remapped_regs + mmPLL_REF_FB_DIV);
-
-	w100_pwr_state.pll_cntl.f.pll_pwdn = 0x1;
-	w100_pwr_state.pll_cntl.f.pll_reset = 0x1;
-	w100_pwr_state.pll_cntl.f.pll_pm_en = 0x0;
-	w100_pwr_state.pll_cntl.f.pll_mode = 0x0;  /* uses VCO clock */
-	w100_pwr_state.pll_cntl.f.pll_refclk_sel = 0x0;
-	w100_pwr_state.pll_cntl.f.pll_fbclk_sel = 0x0;
-	w100_pwr_state.pll_cntl.f.pll_tcpoff = 0x0;
-	w100_pwr_state.pll_cntl.f.pll_pcp = 0x4;
-	w100_pwr_state.pll_cntl.f.pll_pvg = 0x0;
-	w100_pwr_state.pll_cntl.f.pll_vcofr = 0x0;
-	w100_pwr_state.pll_cntl.f.pll_ioffset = 0x0;
-	w100_pwr_state.pll_cntl.f.pll_pecc_mode = 0x0;
-	w100_pwr_state.pll_cntl.f.pll_pecc_scon = 0x0;
-	w100_pwr_state.pll_cntl.f.pll_dactal = 0x0;  /* Hi-Z */
-	w100_pwr_state.pll_cntl.f.pll_cp_clip = 0x3;
-	w100_pwr_state.pll_cntl.f.pll_conf = 0x2;
-	w100_pwr_state.pll_cntl.f.pll_mbctrl = 0x2;
-	w100_pwr_state.pll_cntl.f.pll_ring_off = 0x0;
-	writel((u32) (w100_pwr_state.pll_cntl.val), remapped_regs + mmPLL_CNTL);
-
-	w100_pwr_state.pwrmgt_cntl.f.pwm_enable = 0x0;
-	w100_pwr_state.pwrmgt_cntl.f.pwm_mode_req = 0x1;  /* normal mode (0, 1, 3) */
-	w100_pwr_state.pwrmgt_cntl.f.pwm_wakeup_cond = 0x0;
-	w100_pwr_state.pwrmgt_cntl.f.pwm_fast_noml_hw_en = 0x0;
-	w100_pwr_state.pwrmgt_cntl.f.pwm_noml_fast_hw_en = 0x0;
-	w100_pwr_state.pwrmgt_cntl.f.pwm_fast_noml_cond = 0x1;  /* PM4,ENG */
-	w100_pwr_state.pwrmgt_cntl.f.pwm_noml_fast_cond = 0x1;  /* PM4,ENG */
-	w100_pwr_state.pwrmgt_cntl.f.pwm_idle_timer = 0xFF;
-	w100_pwr_state.pwrmgt_cntl.f.pwm_busy_timer = 0xFF;
-	writel((u32) (w100_pwr_state.pwrmgt_cntl.val), remapped_regs + mmPWRMGT_CNTL);
-
-	w100_pwr_state.auto_mode = 0;  /* manual mode */
-}
-
-
-/*
- * Setup the w100 clocks for the specified mode
- */
-static void w100_init_clocks(struct w100fb_par *par)
-{
-	struct w100_mode *mode = par->mode;
-
-	if (mode->pixclk_src == CLK_SRC_PLL || mode->sysclk_src == CLK_SRC_PLL)
-		w100_set_pll_freq(par, (par->fastpll_mode && mode->fast_pll_freq) ? mode->fast_pll_freq : mode->pll_freq);
-
-	w100_pwr_state.sclk_cntl.f.sclk_src_sel = mode->sysclk_src;
-	w100_pwr_state.sclk_cntl.f.sclk_post_div_fast = mode->sysclk_divider;
-	w100_pwr_state.sclk_cntl.f.sclk_post_div_slow = mode->sysclk_divider;
-	writel((u32) (w100_pwr_state.sclk_cntl.val), remapped_regs + mmSCLK_CNTL);
-}
-
-static void w100_init_lcd(struct w100fb_par *par)
-{
-	u32 temp32;
-	struct w100_mode *mode = par->mode;
-	struct w100_gen_regs *regs = par->mach->regs;
-	union active_h_disp_u active_h_disp;
-	union active_v_disp_u active_v_disp;
-	union graphic_h_disp_u graphic_h_disp;
-	union graphic_v_disp_u graphic_v_disp;
-	union crtc_total_u crtc_total;
-
-	/* w3200 doesn't like undefined bits being set so zero register values first */
-
-	active_h_disp.val = 0;
-	active_h_disp.f.active_h_start=mode->left_margin;
-	active_h_disp.f.active_h_end=mode->left_margin + mode->xres;
-	writel(active_h_disp.val, remapped_regs + mmACTIVE_H_DISP);
-
-	active_v_disp.val = 0;
-	active_v_disp.f.active_v_start=mode->upper_margin;
-	active_v_disp.f.active_v_end=mode->upper_margin + mode->yres;
-	writel(active_v_disp.val, remapped_regs + mmACTIVE_V_DISP);
-
-	graphic_h_disp.val = 0;
-	graphic_h_disp.f.graphic_h_start=mode->left_margin;
-	graphic_h_disp.f.graphic_h_end=mode->left_margin + mode->xres;
-	writel(graphic_h_disp.val, remapped_regs + mmGRAPHIC_H_DISP);
-
-	graphic_v_disp.val = 0;
-	graphic_v_disp.f.graphic_v_start=mode->upper_margin;
-	graphic_v_disp.f.graphic_v_end=mode->upper_margin + mode->yres;
-	writel(graphic_v_disp.val, remapped_regs + mmGRAPHIC_V_DISP);
-
-	crtc_total.val = 0;
-	crtc_total.f.crtc_h_total=mode->left_margin  + mode->xres + mode->right_margin;
-	crtc_total.f.crtc_v_total=mode->upper_margin + mode->yres + mode->lower_margin;
-	writel(crtc_total.val, remapped_regs + mmCRTC_TOTAL);
-
-	writel(mode->crtc_ss, remapped_regs + mmCRTC_SS);
-	writel(mode->crtc_ls, remapped_regs + mmCRTC_LS);
-	writel(mode->crtc_gs, remapped_regs + mmCRTC_GS);
-	writel(mode->crtc_vpos_gs, remapped_regs + mmCRTC_VPOS_GS);
-	writel(mode->crtc_rev, remapped_regs + mmCRTC_REV);
-	writel(mode->crtc_dclk, remapped_regs + mmCRTC_DCLK);
-	writel(mode->crtc_gclk, remapped_regs + mmCRTC_GCLK);
-	writel(mode->crtc_goe, remapped_regs + mmCRTC_GOE);
-	writel(mode->crtc_ps1_active, remapped_regs + mmCRTC_PS1_ACTIVE);
-
-	writel(regs->lcd_format, remapped_regs + mmLCD_FORMAT);
-	writel(regs->lcdd_cntl1, remapped_regs + mmLCDD_CNTL1);
-	writel(regs->lcdd_cntl2, remapped_regs + mmLCDD_CNTL2);
-	writel(regs->genlcd_cntl1, remapped_regs + mmGENLCD_CNTL1);
-	writel(regs->genlcd_cntl2, remapped_regs + mmGENLCD_CNTL2);
-	writel(regs->genlcd_cntl3, remapped_regs + mmGENLCD_CNTL3);
-
-	writel(0x00000000, remapped_regs + mmCRTC_FRAME);
-	writel(0x00000000, remapped_regs + mmCRTC_FRAME_VPOS);
-	writel(0x00000000, remapped_regs + mmCRTC_DEFAULT_COUNT);
-	writel(0x0000FF00, remapped_regs + mmLCD_BACKGROUND_COLOR);
-
-	/* Hack for overlay in ext memory */
-	temp32 = readl(remapped_regs + mmDISP_DEBUG2);
-	temp32 |= 0xc0000000;
-	writel(temp32, remapped_regs + mmDISP_DEBUG2);
-}
-
-
-static void w100_setup_memory(struct w100fb_par *par)
-{
-	union mc_ext_mem_location_u extmem_location;
-	union mc_fb_location_u intmem_location;
-	struct w100_mem_info *mem = par->mach->mem;
-	struct w100_bm_mem_info *bm_mem = par->mach->bm_mem;
-
-	if (!par->extmem_active) {
-		w100_suspend(W100_SUSPEND_EXTMEM);
-
-		/* Map Internal Memory at FB Base */
-		intmem_location.f.mc_fb_start = W100_FB_BASE >> 8;
-		intmem_location.f.mc_fb_top = (W100_FB_BASE+MEM_INT_SIZE) >> 8;
-		writel((u32) (intmem_location.val), remapped_regs + mmMC_FB_LOCATION);
-
-		/* Unmap External Memory - value is *probably* irrelevant but may have meaning
-		   to acceleration libraries */
-		extmem_location.f.mc_ext_mem_start = MEM_EXT_BASE_VALUE >> 8;
-		extmem_location.f.mc_ext_mem_top = (MEM_EXT_BASE_VALUE-1) >> 8;
-		writel((u32) (extmem_location.val), remapped_regs + mmMC_EXT_MEM_LOCATION);
-	} else {
-		/* Map Internal Memory to its default location */
-		intmem_location.f.mc_fb_start = MEM_INT_BASE_VALUE >> 8;
-		intmem_location.f.mc_fb_top = (MEM_INT_BASE_VALUE+MEM_INT_SIZE) >> 8;
-		writel((u32) (intmem_location.val), remapped_regs + mmMC_FB_LOCATION);
-
-		/* Map External Memory at FB Base */
-		extmem_location.f.mc_ext_mem_start = W100_FB_BASE >> 8;
-		extmem_location.f.mc_ext_mem_top = (W100_FB_BASE+par->mach->mem->size) >> 8;
-		writel((u32) (extmem_location.val), remapped_regs + mmMC_EXT_MEM_LOCATION);
-
-		writel(0x00007800, remapped_regs + mmMC_BIST_CTRL);
-		writel(mem->ext_cntl, remapped_regs + mmMEM_EXT_CNTL);
-		writel(0x00200021, remapped_regs + mmMEM_SDRAM_MODE_REG);
-		udelay(100);
-		writel(0x80200021, remapped_regs + mmMEM_SDRAM_MODE_REG);
-		udelay(100);
-		writel(mem->sdram_mode_reg, remapped_regs + mmMEM_SDRAM_MODE_REG);
-		udelay(100);
-		writel(mem->ext_timing_cntl, remapped_regs + mmMEM_EXT_TIMING_CNTL);
-		writel(mem->io_cntl, remapped_regs + mmMEM_IO_CNTL);
-		if (bm_mem) {
-			writel(bm_mem->ext_mem_bw, remapped_regs + mmBM_EXT_MEM_BANDWIDTH);
-			writel(bm_mem->offset, remapped_regs + mmBM_OFFSET);
-			writel(bm_mem->ext_timing_ctl, remapped_regs + mmBM_MEM_EXT_TIMING_CNTL);
-			writel(bm_mem->ext_cntl, remapped_regs + mmBM_MEM_EXT_CNTL);
-			writel(bm_mem->mode_reg, remapped_regs + mmBM_MEM_MODE_REG);
-			writel(bm_mem->io_cntl, remapped_regs + mmBM_MEM_IO_CNTL);
-			writel(bm_mem->config, remapped_regs + mmBM_CONFIG);
-		}
-	}
-}
-
-static void w100_set_dispregs(struct w100fb_par *par)
-{
-	unsigned long rot=0, divider, offset=0;
-	union graphic_ctrl_u graphic_ctrl;
-
-	/* See if the mode has been rotated */
-	if (par->xres == par->mode->xres) {
-		if (par->flip) {
-			rot=3; /* 180 degree */
-			offset=(par->xres * par->yres) - 1;
-		} /* else 0 degree */
-		divider = par->mode->pixclk_divider;
-	} else {
-		if (par->flip) {
-			rot=2; /* 270 degree */
-			offset=par->xres - 1;
-		} else {
-			rot=1; /* 90 degree */
-			offset=par->xres * (par->yres - 1);
-		}
-		divider = par->mode->pixclk_divider_rotated;
-	}
-
-	graphic_ctrl.val = 0; /* w32xx doesn't like undefined bits */
-	switch (par->chip_id) {
-		case CHIP_ID_W100:
-			graphic_ctrl.f_w100.color_depth=6;
-			graphic_ctrl.f_w100.en_crtc=1;
-			graphic_ctrl.f_w100.en_graphic_req=1;
-			graphic_ctrl.f_w100.en_graphic_crtc=1;
-			graphic_ctrl.f_w100.lcd_pclk_on=1;
-			graphic_ctrl.f_w100.lcd_sclk_on=1;
-			graphic_ctrl.f_w100.low_power_on=0;
-			graphic_ctrl.f_w100.req_freq=0;
-			graphic_ctrl.f_w100.portrait_mode=rot;
-
-			/* Zaurus needs this */
-			switch(par->xres) {
-				case 240:
-				case 320:
-				default:
-					graphic_ctrl.f_w100.total_req_graphic=0xa0;
-					break;
-				case 480:
-				case 640:
-					switch(rot) {
-						case 0:  /* 0 */
-						case 3:  /* 180 */
-							graphic_ctrl.f_w100.low_power_on=1;
-							graphic_ctrl.f_w100.req_freq=5;
-						break;
-						case 1:  /* 90 */
-						case 2:  /* 270 */
-							graphic_ctrl.f_w100.req_freq=4;
-							break;
-						default:
-							break;
-					}
-					graphic_ctrl.f_w100.total_req_graphic=0xf0;
-					break;
-			}
-			break;
-		case CHIP_ID_W3200:
-		case CHIP_ID_W3220:
-			graphic_ctrl.f_w32xx.color_depth=6;
-			graphic_ctrl.f_w32xx.en_crtc=1;
-			graphic_ctrl.f_w32xx.en_graphic_req=1;
-			graphic_ctrl.f_w32xx.en_graphic_crtc=1;
-			graphic_ctrl.f_w32xx.lcd_pclk_on=1;
-			graphic_ctrl.f_w32xx.lcd_sclk_on=1;
-			graphic_ctrl.f_w32xx.low_power_on=0;
-			graphic_ctrl.f_w32xx.req_freq=0;
-			graphic_ctrl.f_w32xx.total_req_graphic=par->mode->xres >> 1; /* panel xres, not mode */
-			graphic_ctrl.f_w32xx.portrait_mode=rot;
-			break;
-	}
-
-	/* Set the pixel clock source and divider */
-	w100_pwr_state.pclk_cntl.f.pclk_src_sel = par->mode->pixclk_src;
-	w100_pwr_state.pclk_cntl.f.pclk_post_div = divider;
-	writel((u32) (w100_pwr_state.pclk_cntl.val), remapped_regs + mmPCLK_CNTL);
-
-	writel(graphic_ctrl.val, remapped_regs + mmGRAPHIC_CTRL);
-	writel(W100_FB_BASE + ((offset * BITS_PER_PIXEL/8)&~0x03UL), remapped_regs + mmGRAPHIC_OFFSET);
-	writel((par->xres*BITS_PER_PIXEL/8), remapped_regs + mmGRAPHIC_PITCH);
-}
-
-
-/*
- * Work out how long the sync pulse lasts
- * Value is 1/(time in seconds)
- */
-static void calc_hsync(struct w100fb_par *par)
-{
-	unsigned long hsync;
-	struct w100_mode *mode = par->mode;
-	union crtc_ss_u crtc_ss;
-
-	if (mode->pixclk_src == CLK_SRC_XTAL)
-		hsync=par->mach->xtal_freq;
-	else
-		hsync=((par->fastpll_mode && mode->fast_pll_freq) ? mode->fast_pll_freq : mode->pll_freq)*100000;
-
-	hsync /= (w100_pwr_state.pclk_cntl.f.pclk_post_div + 1);
-
-	crtc_ss.val = readl(remapped_regs + mmCRTC_SS);
-	if (crtc_ss.val)
-		par->hsync_len = hsync / (crtc_ss.f.ss_end-crtc_ss.f.ss_start);
-	else
-		par->hsync_len = 0;
-}
-
-static void w100_suspend(u32 mode)
-{
-	u32 val;
-
-	writel(0x7FFF8000, remapped_regs + mmMC_EXT_MEM_LOCATION);
-	writel(0x00FF0000, remapped_regs + mmMC_PERF_MON_CNTL);
-
-	val = readl(remapped_regs + mmMEM_EXT_TIMING_CNTL);
-	val &= ~(0x00100000);  /* bit20=0 */
-	val |= 0xFF000000;     /* bit31:24=0xff */
-	writel(val, remapped_regs + mmMEM_EXT_TIMING_CNTL);
-
-	val = readl(remapped_regs + mmMEM_EXT_CNTL);
-	val &= ~(0x00040000);  /* bit18=0 */
-	val |= 0x00080000;     /* bit19=1 */
-	writel(val, remapped_regs + mmMEM_EXT_CNTL);
-
-	udelay(1);  /* wait 1us */
-
-	if (mode == W100_SUSPEND_EXTMEM) {
-		/* CKE: Tri-State */
-		val = readl(remapped_regs + mmMEM_EXT_CNTL);
-		val |= 0x40000000;  /* bit30=1 */
-		writel(val, remapped_regs + mmMEM_EXT_CNTL);
-
-		/* CLK: Stop */
-		val = readl(remapped_regs + mmMEM_EXT_CNTL);
-		val &= ~(0x00000001);  /* bit0=0 */
-		writel(val, remapped_regs + mmMEM_EXT_CNTL);
-	} else {
-		writel(0x00000000, remapped_regs + mmSCLK_CNTL);
-		writel(0x000000BF, remapped_regs + mmCLK_PIN_CNTL);
-		writel(0x00000015, remapped_regs + mmPWRMGT_CNTL);
-
-		udelay(5);
-
-		val = readl(remapped_regs + mmPLL_CNTL);
-		val |= 0x00000004;  /* bit2=1 */
-		writel(val, remapped_regs + mmPLL_CNTL);
-
-		writel(0x00000000, remapped_regs + mmLCDD_CNTL1);
-		writel(0x00000000, remapped_regs + mmLCDD_CNTL2);
-		writel(0x00000000, remapped_regs + mmGENLCD_CNTL1);
-		writel(0x00000000, remapped_regs + mmGENLCD_CNTL2);
-		writel(0x00000000, remapped_regs + mmGENLCD_CNTL3);
-
-		val = readl(remapped_regs + mmMEM_EXT_CNTL);
-		val |= 0xF0000000;
-		val &= ~(0x00000001);
-		writel(val, remapped_regs + mmMEM_EXT_CNTL);
-
-		writel(0x0000001d, remapped_regs + mmPWRMGT_CNTL);
-	}
-}
-
-static void w100_vsync(void)
-{
-	u32 tmp;
-	int timeout = 30000;  /* VSync timeout = 30[ms] > 16.8[ms] */
-
-	tmp = readl(remapped_regs + mmACTIVE_V_DISP);
-
-	/* set vline pos  */
-	writel((tmp >> 16) & 0x3ff, remapped_regs + mmDISP_INT_CNTL);
-
-	/* disable vline irq */
-	tmp = readl(remapped_regs + mmGEN_INT_CNTL);
-
-	tmp &= ~0x00000002;
-	writel(tmp, remapped_regs + mmGEN_INT_CNTL);
-
-	/* clear vline irq status */
-	writel(0x00000002, remapped_regs + mmGEN_INT_STATUS);
-
-	/* enable vline irq */
-	writel((tmp | 0x00000002), remapped_regs + mmGEN_INT_CNTL);
-
-	/* clear vline irq status */
-	writel(0x00000002, remapped_regs + mmGEN_INT_STATUS);
-
-	while(timeout > 0) {
-		if (readl(remapped_regs + mmGEN_INT_STATUS) & 0x00000002)
-			break;
-		udelay(1);
-		timeout--;
-	}
-
-	/* disable vline irq */
-	writel(tmp, remapped_regs + mmGEN_INT_CNTL);
-
-	/* clear vline irq status */
-	writel(0x00000002, remapped_regs + mmGEN_INT_STATUS);
-}
-
-static struct platform_driver w100fb_driver = {
-	.probe		= w100fb_probe,
-	.remove		= w100fb_remove,
-	.suspend	= w100fb_suspend,
-	.resume		= w100fb_resume,
-	.driver		= {
-		.name	= "w100fb",
-	},
-};
-
-module_platform_driver(w100fb_driver);
-
-MODULE_DESCRIPTION("ATI Imageon w100 framebuffer driver");
-MODULE_LICENSE("GPL");