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, 1453 deletions

diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
deleted file mode 100644
index e683b6ef9594..000000000000
--- a/drivers/video/atmel_lcdfb.c
+++ /dev/null
@@ -1,1453 +0,0 @@
-/*
- *  Driver for AT91/AT32 LCD Controller
- *
- *  Copyright (C) 2007 Atmel Corporation
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive for
- * more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/interrupt.h>
-#include <linux/clk.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/backlight.h>
-#include <linux/gfp.h>
-#include <linux/module.h>
-#include <linux/platform_data/atmel.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/of_gpio.h>
-#include <video/of_display_timing.h>
-#include <video/videomode.h>
-
-#include <mach/cpu.h>
-#include <asm/gpio.h>
-
-#include <video/atmel_lcdc.h>
-
-struct atmel_lcdfb_config {
-	bool have_alt_pixclock;
-	bool have_hozval;
-	bool have_intensity_bit;
-};
-
- /* LCD Controller info data structure, stored in device platform_data */
-struct atmel_lcdfb_info {
-	spinlock_t		lock;
-	struct fb_info		*info;
-	void __iomem		*mmio;
-	int			irq_base;
-	struct work_struct	task;
-
-	unsigned int		smem_len;
-	struct platform_device	*pdev;
-	struct clk		*bus_clk;
-	struct clk		*lcdc_clk;
-
-	struct backlight_device	*backlight;
-	u8			bl_power;
-	u8			saved_lcdcon;
-
-	u32			pseudo_palette[16];
-	bool			have_intensity_bit;
-
-	struct atmel_lcdfb_pdata pdata;
-
-	struct atmel_lcdfb_config *config;
-};
-
-struct atmel_lcdfb_power_ctrl_gpio {
-	int gpio;
-	int active_low;
-
-	struct list_head list;
-};
-
-#define lcdc_readl(sinfo, reg)		__raw_readl((sinfo)->mmio+(reg))
-#define lcdc_writel(sinfo, reg, val)	__raw_writel((val), (sinfo)->mmio+(reg))
-
-/* configurable parameters */
-#define ATMEL_LCDC_CVAL_DEFAULT		0xc8
-#define ATMEL_LCDC_DMA_BURST_LEN	8	/* words */
-#define ATMEL_LCDC_FIFO_SIZE		512	/* words */
-
-static struct atmel_lcdfb_config at91sam9261_config = {
-	.have_hozval		= true,
-	.have_intensity_bit	= true,
-};
-
-static struct atmel_lcdfb_config at91sam9263_config = {
-	.have_intensity_bit	= true,
-};
-
-static struct atmel_lcdfb_config at91sam9g10_config = {
-	.have_hozval		= true,
-};
-
-static struct atmel_lcdfb_config at91sam9g45_config = {
-	.have_alt_pixclock	= true,
-};
-
-static struct atmel_lcdfb_config at91sam9g45es_config = {
-};
-
-static struct atmel_lcdfb_config at91sam9rl_config = {
-	.have_intensity_bit	= true,
-};
-
-static struct atmel_lcdfb_config at32ap_config = {
-	.have_hozval		= true,
-};
-
-static const struct platform_device_id atmel_lcdfb_devtypes[] = {
-	{
-		.name = "at91sam9261-lcdfb",
-		.driver_data = (unsigned long)&at91sam9261_config,
-	}, {
-		.name = "at91sam9263-lcdfb",
-		.driver_data = (unsigned long)&at91sam9263_config,
-	}, {
-		.name = "at91sam9g10-lcdfb",
-		.driver_data = (unsigned long)&at91sam9g10_config,
-	}, {
-		.name = "at91sam9g45-lcdfb",
-		.driver_data = (unsigned long)&at91sam9g45_config,
-	}, {
-		.name = "at91sam9g45es-lcdfb",
-		.driver_data = (unsigned long)&at91sam9g45es_config,
-	}, {
-		.name = "at91sam9rl-lcdfb",
-		.driver_data = (unsigned long)&at91sam9rl_config,
-	}, {
-		.name = "at32ap-lcdfb",
-		.driver_data = (unsigned long)&at32ap_config,
-	}, {
-		/* terminator */
-	}
-};
-MODULE_DEVICE_TABLE(platform, atmel_lcdfb_devtypes);
-
-static struct atmel_lcdfb_config *
-atmel_lcdfb_get_config(struct platform_device *pdev)
-{
-	unsigned long data;
-
-	data = platform_get_device_id(pdev)->driver_data;
-
-	return (struct atmel_lcdfb_config *)data;
-}
-
-#if defined(CONFIG_ARCH_AT91)
-#define	ATMEL_LCDFB_FBINFO_DEFAULT	(FBINFO_DEFAULT \
-					 | FBINFO_PARTIAL_PAN_OK \
-					 | FBINFO_HWACCEL_YPAN)
-
-static inline void atmel_lcdfb_update_dma2d(struct atmel_lcdfb_info *sinfo,
-					struct fb_var_screeninfo *var,
-					struct fb_info *info)
-{
-
-}
-#elif defined(CONFIG_AVR32)
-#define	ATMEL_LCDFB_FBINFO_DEFAULT	(FBINFO_DEFAULT \
-					| FBINFO_PARTIAL_PAN_OK \
-					| FBINFO_HWACCEL_XPAN \
-					| FBINFO_HWACCEL_YPAN)
-
-static void atmel_lcdfb_update_dma2d(struct atmel_lcdfb_info *sinfo,
-				     struct fb_var_screeninfo *var,
-				     struct fb_info *info)
-{
-	u32 dma2dcfg;
-	u32 pixeloff;
-
-	pixeloff = (var->xoffset * info->var.bits_per_pixel) & 0x1f;
-
-	dma2dcfg = (info->var.xres_virtual - info->var.xres)
-		 * info->var.bits_per_pixel / 8;
-	dma2dcfg |= pixeloff << ATMEL_LCDC_PIXELOFF_OFFSET;
-	lcdc_writel(sinfo, ATMEL_LCDC_DMA2DCFG, dma2dcfg);
-
-	/* Update configuration */
-	lcdc_writel(sinfo, ATMEL_LCDC_DMACON,
-		    lcdc_readl(sinfo, ATMEL_LCDC_DMACON)
-		    | ATMEL_LCDC_DMAUPDT);
-}
-#endif
-
-static u32 contrast_ctr = ATMEL_LCDC_PS_DIV8
-		| ATMEL_LCDC_POL_POSITIVE
-		| ATMEL_LCDC_ENA_PWMENABLE;
-
-#ifdef CONFIG_BACKLIGHT_ATMEL_LCDC
-
-/* some bl->props field just changed */
-static int atmel_bl_update_status(struct backlight_device *bl)
-{
-	struct atmel_lcdfb_info *sinfo = bl_get_data(bl);
-	int			power = sinfo->bl_power;
-	int			brightness = bl->props.brightness;
-
-	/* REVISIT there may be a meaningful difference between
-	 * fb_blank and power ... there seem to be some cases
-	 * this doesn't handle correctly.
-	 */
-	if (bl->props.fb_blank != sinfo->bl_power)
-		power = bl->props.fb_blank;
-	else if (bl->props.power != sinfo->bl_power)
-		power = bl->props.power;
-
-	if (brightness < 0 && power == FB_BLANK_UNBLANK)
-		brightness = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_VAL);
-	else if (power != FB_BLANK_UNBLANK)
-		brightness = 0;
-
-	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_VAL, brightness);
-	if (contrast_ctr & ATMEL_LCDC_POL_POSITIVE)
-		lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR,
-			brightness ? contrast_ctr : 0);
-	else
-		lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, contrast_ctr);
-
-	bl->props.fb_blank = bl->props.power = sinfo->bl_power = power;
-
-	return 0;
-}
-
-static int atmel_bl_get_brightness(struct backlight_device *bl)
-{
-	struct atmel_lcdfb_info *sinfo = bl_get_data(bl);
-
-	return lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_VAL);
-}
-
-static const struct backlight_ops atmel_lcdc_bl_ops = {
-	.update_status = atmel_bl_update_status,
-	.get_brightness = atmel_bl_get_brightness,
-};
-
-static void init_backlight(struct atmel_lcdfb_info *sinfo)
-{
-	struct backlight_properties props;
-	struct backlight_device	*bl;
-
-	sinfo->bl_power = FB_BLANK_UNBLANK;
-
-	if (sinfo->backlight)
-		return;
-
-	memset(&props, 0, sizeof(struct backlight_properties));
-	props.type = BACKLIGHT_RAW;
-	props.max_brightness = 0xff;
-	bl = backlight_device_register("backlight", &sinfo->pdev->dev, sinfo,
-				       &atmel_lcdc_bl_ops, &props);
-	if (IS_ERR(bl)) {
-		dev_err(&sinfo->pdev->dev, "error %ld on backlight register\n",
-				PTR_ERR(bl));
-		return;
-	}
-	sinfo->backlight = bl;
-
-	bl->props.power = FB_BLANK_UNBLANK;
-	bl->props.fb_blank = FB_BLANK_UNBLANK;
-	bl->props.brightness = atmel_bl_get_brightness(bl);
-}
-
-static void exit_backlight(struct atmel_lcdfb_info *sinfo)
-{
-	if (!sinfo->backlight)
-		return;
-
-	if (sinfo->backlight->ops) {
-		sinfo->backlight->props.power = FB_BLANK_POWERDOWN;
-		sinfo->backlight->ops->update_status(sinfo->backlight);
-	}
-	backlight_device_unregister(sinfo->backlight);
-}
-
-#else
-
-static void init_backlight(struct atmel_lcdfb_info *sinfo)
-{
-	dev_warn(&sinfo->pdev->dev, "backlight control is not available\n");
-}
-
-static void exit_backlight(struct atmel_lcdfb_info *sinfo)
-{
-}
-
-#endif
-
-static void init_contrast(struct atmel_lcdfb_info *sinfo)
-{
-	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
-
-	/* contrast pwm can be 'inverted' */
-	if (pdata->lcdcon_pol_negative)
-			contrast_ctr &= ~(ATMEL_LCDC_POL_POSITIVE);
-
-	/* have some default contrast/backlight settings */
-	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, contrast_ctr);
-	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_VAL, ATMEL_LCDC_CVAL_DEFAULT);
-
-	if (pdata->lcdcon_is_backlight)
-		init_backlight(sinfo);
-}
-
-static inline void atmel_lcdfb_power_control(struct atmel_lcdfb_info *sinfo, int on)
-{
-	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
-
-	if (pdata->atmel_lcdfb_power_control)
-		pdata->atmel_lcdfb_power_control(pdata, on);
-}
-
-static struct fb_fix_screeninfo atmel_lcdfb_fix __initdata = {
-	.type		= FB_TYPE_PACKED_PIXELS,
-	.visual		= FB_VISUAL_TRUECOLOR,
-	.xpanstep	= 0,
-	.ypanstep	= 1,
-	.ywrapstep	= 0,
-	.accel		= FB_ACCEL_NONE,
-};
-
-static unsigned long compute_hozval(struct atmel_lcdfb_info *sinfo,
-							unsigned long xres)
-{
-	unsigned long lcdcon2;
-	unsigned long value;
-
-	if (!sinfo->config->have_hozval)
-		return xres;
-
-	lcdcon2 = lcdc_readl(sinfo, ATMEL_LCDC_LCDCON2);
-	value = xres;
-	if ((lcdcon2 & ATMEL_LCDC_DISTYPE) != ATMEL_LCDC_DISTYPE_TFT) {
-		/* STN display */
-		if ((lcdcon2 & ATMEL_LCDC_DISTYPE) == ATMEL_LCDC_DISTYPE_STNCOLOR) {
-			value *= 3;
-		}
-		if ( (lcdcon2 & ATMEL_LCDC_IFWIDTH) == ATMEL_LCDC_IFWIDTH_4
-		   || ( (lcdcon2 & ATMEL_LCDC_IFWIDTH) == ATMEL_LCDC_IFWIDTH_8
-		      && (lcdcon2 & ATMEL_LCDC_SCANMOD) == ATMEL_LCDC_SCANMOD_DUAL ))
-			value = DIV_ROUND_UP(value, 4);
-		else
-			value = DIV_ROUND_UP(value, 8);
-	}
-
-	return value;
-}
-
-static void atmel_lcdfb_stop_nowait(struct atmel_lcdfb_info *sinfo)
-{
-	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
-
-	/* Turn off the LCD controller and the DMA controller */
-	lcdc_writel(sinfo, ATMEL_LCDC_PWRCON,
-			pdata->guard_time << ATMEL_LCDC_GUARDT_OFFSET);
-
-	/* Wait for the LCDC core to become idle */
-	while (lcdc_readl(sinfo, ATMEL_LCDC_PWRCON) & ATMEL_LCDC_BUSY)
-		msleep(10);
-
-	lcdc_writel(sinfo, ATMEL_LCDC_DMACON, 0);
-}
-
-static void atmel_lcdfb_stop(struct atmel_lcdfb_info *sinfo)
-{
-	atmel_lcdfb_stop_nowait(sinfo);
-
-	/* Wait for DMA engine to become idle... */
-	while (lcdc_readl(sinfo, ATMEL_LCDC_DMACON) & ATMEL_LCDC_DMABUSY)
-		msleep(10);
-}
-
-static void atmel_lcdfb_start(struct atmel_lcdfb_info *sinfo)
-{
-	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
-
-	lcdc_writel(sinfo, ATMEL_LCDC_DMACON, pdata->default_dmacon);
-	lcdc_writel(sinfo, ATMEL_LCDC_PWRCON,
-		(pdata->guard_time << ATMEL_LCDC_GUARDT_OFFSET)
-		| ATMEL_LCDC_PWR);
-}
-
-static void atmel_lcdfb_update_dma(struct fb_info *info,
-			       struct fb_var_screeninfo *var)
-{
-	struct atmel_lcdfb_info *sinfo = info->par;
-	struct fb_fix_screeninfo *fix = &info->fix;
-	unsigned long dma_addr;
-
-	dma_addr = (fix->smem_start + var->yoffset * fix->line_length
-		    + var->xoffset * info->var.bits_per_pixel / 8);
-
-	dma_addr &= ~3UL;
-
-	/* Set framebuffer DMA base address and pixel offset */
-	lcdc_writel(sinfo, ATMEL_LCDC_DMABADDR1, dma_addr);
-
-	atmel_lcdfb_update_dma2d(sinfo, var, info);
-}
-
-static inline void atmel_lcdfb_free_video_memory(struct atmel_lcdfb_info *sinfo)
-{
-	struct fb_info *info = sinfo->info;
-
-	dma_free_writecombine(info->device, info->fix.smem_len,
-				info->screen_base, info->fix.smem_start);
-}
-
-/**
- *	atmel_lcdfb_alloc_video_memory - Allocate framebuffer memory
- *	@sinfo: the frame buffer to allocate memory for
- * 	
- * 	This function is called only from the atmel_lcdfb_probe()
- * 	so no locking by fb_info->mm_lock around smem_len setting is needed.
- */
-static int atmel_lcdfb_alloc_video_memory(struct atmel_lcdfb_info *sinfo)
-{
-	struct fb_info *info = sinfo->info;
-	struct fb_var_screeninfo *var = &info->var;
-	unsigned int smem_len;
-
-	smem_len = (var->xres_virtual * var->yres_virtual
-		    * ((var->bits_per_pixel + 7) / 8));
-	info->fix.smem_len = max(smem_len, sinfo->smem_len);
-
-	info->screen_base = dma_alloc_writecombine(info->device, info->fix.smem_len,
-					(dma_addr_t *)&info->fix.smem_start, GFP_KERNEL);
-
-	if (!info->screen_base) {
-		return -ENOMEM;
-	}
-
-	memset(info->screen_base, 0, info->fix.smem_len);
-
-	return 0;
-}
-
-static const struct fb_videomode *atmel_lcdfb_choose_mode(struct fb_var_screeninfo *var,
-						     struct fb_info *info)
-{
-	struct fb_videomode varfbmode;
-	const struct fb_videomode *fbmode = NULL;
-
-	fb_var_to_videomode(&varfbmode, var);
-	fbmode = fb_find_nearest_mode(&varfbmode, &info->modelist);
-	if (fbmode)
-		fb_videomode_to_var(var, fbmode);
-	return fbmode;
-}
-
-
-/**
- *      atmel_lcdfb_check_var - Validates a var passed in.
- *      @var: frame buffer variable screen structure
- *      @info: frame buffer structure that represents a single frame buffer
- *
- *	Checks to see if the hardware supports the state requested by
- *	var passed in. This function does not alter the hardware
- *	state!!!  This means the data stored in struct fb_info and
- *	struct atmel_lcdfb_info do not change. This includes the var
- *	inside of struct fb_info.  Do NOT change these. This function
- *	can be called on its own if we intent to only test a mode and
- *	not actually set it. The stuff in modedb.c is a example of
- *	this. If the var passed in is slightly off by what the
- *	hardware can support then we alter the var PASSED in to what
- *	we can do. If the hardware doesn't support mode change a
- *	-EINVAL will be returned by the upper layers. You don't need
- *	to implement this function then. If you hardware doesn't
- *	support changing the resolution then this function is not
- *	needed. In this case the driver would just provide a var that
- *	represents the static state the screen is in.
- *
- *	Returns negative errno on error, or zero on success.
- */
-static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var,
-			     struct fb_info *info)
-{
-	struct device *dev = info->device;
-	struct atmel_lcdfb_info *sinfo = info->par;
-	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
-	unsigned long clk_value_khz;
-
-	clk_value_khz = clk_get_rate(sinfo->lcdc_clk) / 1000;
-
-	dev_dbg(dev, "%s:\n", __func__);
-
-	if (!(var->pixclock && var->bits_per_pixel)) {
-		/* choose a suitable mode if possible */
-		if (!atmel_lcdfb_choose_mode(var, info)) {
-			dev_err(dev, "needed value not specified\n");
-			return -EINVAL;
-		}
-	}
-
-	dev_dbg(dev, "  resolution: %ux%u\n", var->xres, var->yres);
-	dev_dbg(dev, "  pixclk:     %lu KHz\n", PICOS2KHZ(var->pixclock));
-	dev_dbg(dev, "  bpp:        %u\n", var->bits_per_pixel);
-	dev_dbg(dev, "  clk:        %lu KHz\n", clk_value_khz);
-
-	if (PICOS2KHZ(var->pixclock) > clk_value_khz) {
-		dev_err(dev, "%lu KHz pixel clock is too fast\n", PICOS2KHZ(var->pixclock));
-		return -EINVAL;
-	}
-
-	/* Do not allow to have real resoulution larger than virtual */
-	if (var->xres > var->xres_virtual)
-		var->xres_virtual = var->xres;
-
-	if (var->yres > var->yres_virtual)
-		var->yres_virtual = var->yres;
-
-	/* Force same alignment for each line */
-	var->xres = (var->xres + 3) & ~3UL;
-	var->xres_virtual = (var->xres_virtual + 3) & ~3UL;
-
-	var->red.msb_right = var->green.msb_right = var->blue.msb_right = 0;
-	var->transp.msb_right = 0;
-	var->transp.offset = var->transp.length = 0;
-	var->xoffset = var->yoffset = 0;
-
-	if (info->fix.smem_len) {
-		unsigned int smem_len = (var->xres_virtual * var->yres_virtual
-					 * ((var->bits_per_pixel + 7) / 8));
-		if (smem_len > info->fix.smem_len) {
-			dev_err(dev, "Frame buffer is too small (%u) for screen size (need at least %u)\n",
-				info->fix.smem_len, smem_len);
-			return -EINVAL;
-		}
-	}
-
-	/* Saturate vertical and horizontal timings at maximum values */
-	var->vsync_len = min_t(u32, var->vsync_len,
-			(ATMEL_LCDC_VPW >> ATMEL_LCDC_VPW_OFFSET) + 1);
-	var->upper_margin = min_t(u32, var->upper_margin,
-			ATMEL_LCDC_VBP >> ATMEL_LCDC_VBP_OFFSET);
-	var->lower_margin = min_t(u32, var->lower_margin,
-			ATMEL_LCDC_VFP);
-	var->right_margin = min_t(u32, var->right_margin,
-			(ATMEL_LCDC_HFP >> ATMEL_LCDC_HFP_OFFSET) + 1);
-	var->hsync_len = min_t(u32, var->hsync_len,
-			(ATMEL_LCDC_HPW >> ATMEL_LCDC_HPW_OFFSET) + 1);
-	var->left_margin = min_t(u32, var->left_margin,
-			ATMEL_LCDC_HBP + 1);
-
-	/* Some parameters can't be zero */
-	var->vsync_len = max_t(u32, var->vsync_len, 1);
-	var->right_margin = max_t(u32, var->right_margin, 1);
-	var->hsync_len = max_t(u32, var->hsync_len, 1);
-	var->left_margin = max_t(u32, var->left_margin, 1);
-
-	switch (var->bits_per_pixel) {
-	case 1:
-	case 2:
-	case 4:
-	case 8:
-		var->red.offset = var->green.offset = var->blue.offset = 0;
-		var->red.length = var->green.length = var->blue.length
-			= var->bits_per_pixel;
-		break;
-	case 16:
-		/* Older SOCs use IBGR:555 rather than BGR:565. */
-		if (sinfo->config->have_intensity_bit)
-			var->green.length = 5;
-		else
-			var->green.length = 6;
-
-		if (pdata->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) {
-			/* RGB:5X5 mode */
-			var->red.offset = var->green.length + 5;
-			var->blue.offset = 0;
-		} else {
-			/* BGR:5X5 mode */
-			var->red.offset = 0;
-			var->blue.offset = var->green.length + 5;
-		}
-		var->green.offset = 5;
-		var->red.length = var->blue.length = 5;
-		break;
-	case 32:
-		var->transp.offset = 24;
-		var->transp.length = 8;
-		/* fall through */
-	case 24:
-		if (pdata->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) {
-			/* RGB:888 mode */
-			var->red.offset = 16;
-			var->blue.offset = 0;
-		} else {
-			/* BGR:888 mode */
-			var->red.offset = 0;
-			var->blue.offset = 16;
-		}
-		var->green.offset = 8;
-		var->red.length = var->green.length = var->blue.length = 8;
-		break;
-	default:
-		dev_err(dev, "color depth %d not supported\n",
-					var->bits_per_pixel);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-/*
- * LCD reset sequence
- */
-static void atmel_lcdfb_reset(struct atmel_lcdfb_info *sinfo)
-{
-	might_sleep();
-
-	atmel_lcdfb_stop(sinfo);
-	atmel_lcdfb_start(sinfo);
-}
-
-/**
- *      atmel_lcdfb_set_par - Alters the hardware state.
- *      @info: frame buffer structure that represents a single frame buffer
- *
- *	Using the fb_var_screeninfo in fb_info we set the resolution
- *	of the this particular framebuffer. This function alters the
- *	par AND the fb_fix_screeninfo stored in fb_info. It doesn't
- *	not alter var in fb_info since we are using that data. This
- *	means we depend on the data in var inside fb_info to be
- *	supported by the hardware.  atmel_lcdfb_check_var is always called
- *	before atmel_lcdfb_set_par to ensure this.  Again if you can't
- *	change the resolution you don't need this function.
- *
- */
-static int atmel_lcdfb_set_par(struct fb_info *info)
-{
-	struct atmel_lcdfb_info *sinfo = info->par;
-	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
-	unsigned long hozval_linesz;
-	unsigned long value;
-	unsigned long clk_value_khz;
-	unsigned long bits_per_line;
-	unsigned long pix_factor = 2;
-
-	might_sleep();
-
-	dev_dbg(info->device, "%s:\n", __func__);
-	dev_dbg(info->device, "  * resolution: %ux%u (%ux%u virtual)\n",
-		 info->var.xres, info->var.yres,
-		 info->var.xres_virtual, info->var.yres_virtual);
-
-	atmel_lcdfb_stop_nowait(sinfo);
-
-	if (info->var.bits_per_pixel == 1)
-		info->fix.visual = FB_VISUAL_MONO01;
-	else if (info->var.bits_per_pixel <= 8)
-		info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
-	else
-		info->fix.visual = FB_VISUAL_TRUECOLOR;
-
-	bits_per_line = info->var.xres_virtual * info->var.bits_per_pixel;
-	info->fix.line_length = DIV_ROUND_UP(bits_per_line, 8);
-
-	/* Re-initialize the DMA engine... */
-	dev_dbg(info->device, "  * update DMA engine\n");
-	atmel_lcdfb_update_dma(info, &info->var);
-
-	/* ...set frame size and burst length = 8 words (?) */
-	value = (info->var.yres * info->var.xres * info->var.bits_per_pixel) / 32;
-	value |= ((ATMEL_LCDC_DMA_BURST_LEN - 1) << ATMEL_LCDC_BLENGTH_OFFSET);
-	lcdc_writel(sinfo, ATMEL_LCDC_DMAFRMCFG, value);
-
-	/* Now, the LCDC core... */
-
-	/* Set pixel clock */
-	if (sinfo->config->have_alt_pixclock)
-		pix_factor = 1;
-
-	clk_value_khz = clk_get_rate(sinfo->lcdc_clk) / 1000;
-
-	value = DIV_ROUND_UP(clk_value_khz, PICOS2KHZ(info->var.pixclock));
-
-	if (value < pix_factor) {
-		dev_notice(info->device, "Bypassing pixel clock divider\n");
-		lcdc_writel(sinfo, ATMEL_LCDC_LCDCON1, ATMEL_LCDC_BYPASS);
-	} else {
-		value = (value / pix_factor) - 1;
-		dev_dbg(info->device, "  * programming CLKVAL = 0x%08lx\n",
-				value);
-		lcdc_writel(sinfo, ATMEL_LCDC_LCDCON1,
-				value << ATMEL_LCDC_CLKVAL_OFFSET);
-		info->var.pixclock =
-			KHZ2PICOS(clk_value_khz / (pix_factor * (value + 1)));
-		dev_dbg(info->device, "  updated pixclk:     %lu KHz\n",
-					PICOS2KHZ(info->var.pixclock));
-	}
-
-
-	/* Initialize control register 2 */
-	value = pdata->default_lcdcon2;
-
-	if (!(info->var.sync & FB_SYNC_HOR_HIGH_ACT))
-		value |= ATMEL_LCDC_INVLINE_INVERTED;
-	if (!(info->var.sync & FB_SYNC_VERT_HIGH_ACT))
-		value |= ATMEL_LCDC_INVFRAME_INVERTED;
-
-	switch (info->var.bits_per_pixel) {
-		case 1:	value |= ATMEL_LCDC_PIXELSIZE_1; break;
-		case 2: value |= ATMEL_LCDC_PIXELSIZE_2; break;
-		case 4: value |= ATMEL_LCDC_PIXELSIZE_4; break;
-		case 8: value |= ATMEL_LCDC_PIXELSIZE_8; break;
-		case 15: /* fall through */
-		case 16: value |= ATMEL_LCDC_PIXELSIZE_16; break;
-		case 24: value |= ATMEL_LCDC_PIXELSIZE_24; break;
-		case 32: value |= ATMEL_LCDC_PIXELSIZE_32; break;
-		default: BUG(); break;
-	}
-	dev_dbg(info->device, "  * LCDCON2 = %08lx\n", value);
-	lcdc_writel(sinfo, ATMEL_LCDC_LCDCON2, value);
-
-	/* Vertical timing */
-	value = (info->var.vsync_len - 1) << ATMEL_LCDC_VPW_OFFSET;
-	value |= info->var.upper_margin << ATMEL_LCDC_VBP_OFFSET;
-	value |= info->var.lower_margin;
-	dev_dbg(info->device, "  * LCDTIM1 = %08lx\n", value);
-	lcdc_writel(sinfo, ATMEL_LCDC_TIM1, value);
-
-	/* Horizontal timing */
-	value = (info->var.right_margin - 1) << ATMEL_LCDC_HFP_OFFSET;
-	value |= (info->var.hsync_len - 1) << ATMEL_LCDC_HPW_OFFSET;
-	value |= (info->var.left_margin - 1);
-	dev_dbg(info->device, "  * LCDTIM2 = %08lx\n", value);
-	lcdc_writel(sinfo, ATMEL_LCDC_TIM2, value);
-
-	/* Horizontal value (aka line size) */
-	hozval_linesz = compute_hozval(sinfo, info->var.xres);
-
-	/* Display size */
-	value = (hozval_linesz - 1) << ATMEL_LCDC_HOZVAL_OFFSET;
-	value |= info->var.yres - 1;
-	dev_dbg(info->device, "  * LCDFRMCFG = %08lx\n", value);
-	lcdc_writel(sinfo, ATMEL_LCDC_LCDFRMCFG, value);
-
-	/* FIFO Threshold: Use formula from data sheet */
-	value = ATMEL_LCDC_FIFO_SIZE - (2 * ATMEL_LCDC_DMA_BURST_LEN + 3);
-	lcdc_writel(sinfo, ATMEL_LCDC_FIFO, value);
-
-	/* Toggle LCD_MODE every frame */
-	lcdc_writel(sinfo, ATMEL_LCDC_MVAL, 0);
-
-	/* Disable all interrupts */
-	lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0UL);
-	/* Enable FIFO & DMA errors */
-	lcdc_writel(sinfo, ATMEL_LCDC_IER, ATMEL_LCDC_UFLWI | ATMEL_LCDC_OWRI | ATMEL_LCDC_MERI);
-
-	/* ...wait for DMA engine to become idle... */
-	while (lcdc_readl(sinfo, ATMEL_LCDC_DMACON) & ATMEL_LCDC_DMABUSY)
-		msleep(10);
-
-	atmel_lcdfb_start(sinfo);
-
-	dev_dbg(info->device, "  * DONE\n");
-
-	return 0;
-}
-
-static inline unsigned int chan_to_field(unsigned int chan, const struct fb_bitfield *bf)
-{
-	chan &= 0xffff;
-	chan >>= 16 - bf->length;
-	return chan << bf->offset;
-}
-
-/**
- *  	atmel_lcdfb_setcolreg - Optional function. Sets a color register.
- *      @regno: Which register in the CLUT we are programming
- *      @red: The red value which can be up to 16 bits wide
- *	@green: The green value which can be up to 16 bits wide
- *	@blue:  The blue value which can be up to 16 bits wide.
- *	@transp: If supported the alpha value which can be up to 16 bits wide.
- *      @info: frame buffer info structure
- *
- *  	Set a single color register. The values supplied have a 16 bit
- *  	magnitude which needs to be scaled in this function for the hardware.
- *	Things to take into consideration are how many color registers, if
- *	any, are supported with the current color visual. With truecolor mode
- *	no color palettes are supported. Here a pseudo palette is created
- *	which we store the value in pseudo_palette in struct fb_info. For
- *	pseudocolor mode we have a limited color palette. To deal with this
- *	we can program what color is displayed for a particular pixel value.
- *	DirectColor is similar in that we can program each color field. If
- *	we have a static colormap we don't need to implement this function.
- *
- *	Returns negative errno on error, or zero on success. In an
- *	ideal world, this would have been the case, but as it turns
- *	out, the other drivers return 1 on failure, so that's what
- *	we're going to do.
- */
-static int atmel_lcdfb_setcolreg(unsigned int regno, unsigned int red,
-			     unsigned int green, unsigned int blue,
-			     unsigned int transp, struct fb_info *info)
-{
-	struct atmel_lcdfb_info *sinfo = info->par;
-	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
-	unsigned int val;
-	u32 *pal;
-	int ret = 1;
-
-	if (info->var.grayscale)
-		red = green = blue = (19595 * red + 38470 * green
-				      + 7471 * blue) >> 16;
-
-	switch (info->fix.visual) {
-	case FB_VISUAL_TRUECOLOR:
-		if (regno < 16) {
-			pal = info->pseudo_palette;
-
-			val  = chan_to_field(red, &info->var.red);
-			val |= chan_to_field(green, &info->var.green);
-			val |= chan_to_field(blue, &info->var.blue);
-
-			pal[regno] = val;
-			ret = 0;
-		}
-		break;
-
-	case FB_VISUAL_PSEUDOCOLOR:
-		if (regno < 256) {
-			if (sinfo->config->have_intensity_bit) {
-				/* old style I+BGR:555 */
-				val  = ((red   >> 11) & 0x001f);
-				val |= ((green >>  6) & 0x03e0);
-				val |= ((blue  >>  1) & 0x7c00);
-
-				/*
-				 * TODO: intensity bit. Maybe something like
-				 *   ~(red[10] ^ green[10] ^ blue[10]) & 1
-				 */
-			} else {
-				/* new style BGR:565 / RGB:565 */
-				if (pdata->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) {
-					val  = ((blue >> 11) & 0x001f);
-					val |= ((red  >>  0) & 0xf800);
-				} else {
-					val  = ((red  >> 11) & 0x001f);
-					val |= ((blue >>  0) & 0xf800);
-				}
-
-				val |= ((green >>  5) & 0x07e0);
-			}
-
-			lcdc_writel(sinfo, ATMEL_LCDC_LUT(regno), val);
-			ret = 0;
-		}
-		break;
-
-	case FB_VISUAL_MONO01:
-		if (regno < 2) {
-			val = (regno == 0) ? 0x00 : 0x1F;
-			lcdc_writel(sinfo, ATMEL_LCDC_LUT(regno), val);
-			ret = 0;
-		}
-		break;
-
-	}
-
-	return ret;
-}
-
-static int atmel_lcdfb_pan_display(struct fb_var_screeninfo *var,
-			       struct fb_info *info)
-{
-	dev_dbg(info->device, "%s\n", __func__);
-
-	atmel_lcdfb_update_dma(info, var);
-
-	return 0;
-}
-
-static int atmel_lcdfb_blank(int blank_mode, struct fb_info *info)
-{
-	struct atmel_lcdfb_info *sinfo = info->par;
-
-	switch (blank_mode) {
-	case FB_BLANK_UNBLANK:
-	case FB_BLANK_NORMAL:
-		atmel_lcdfb_start(sinfo);
-		break;
-	case FB_BLANK_VSYNC_SUSPEND:
-	case FB_BLANK_HSYNC_SUSPEND:
-		break;
-	case FB_BLANK_POWERDOWN:
-		atmel_lcdfb_stop(sinfo);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	/* let fbcon do a soft blank for us */
-	return ((blank_mode == FB_BLANK_NORMAL) ? 1 : 0);
-}
-
-static struct fb_ops atmel_lcdfb_ops = {
-	.owner		= THIS_MODULE,
-	.fb_check_var	= atmel_lcdfb_check_var,
-	.fb_set_par	= atmel_lcdfb_set_par,
-	.fb_setcolreg	= atmel_lcdfb_setcolreg,
-	.fb_blank	= atmel_lcdfb_blank,
-	.fb_pan_display	= atmel_lcdfb_pan_display,
-	.fb_fillrect	= cfb_fillrect,
-	.fb_copyarea	= cfb_copyarea,
-	.fb_imageblit	= cfb_imageblit,
-};
-
-static irqreturn_t atmel_lcdfb_interrupt(int irq, void *dev_id)
-{
-	struct fb_info *info = dev_id;
-	struct atmel_lcdfb_info *sinfo = info->par;
-	u32 status;
-
-	status = lcdc_readl(sinfo, ATMEL_LCDC_ISR);
-	if (status & ATMEL_LCDC_UFLWI) {
-		dev_warn(info->device, "FIFO underflow %#x\n", status);
-		/* reset DMA and FIFO to avoid screen shifting */
-		schedule_work(&sinfo->task);
-	}
-	lcdc_writel(sinfo, ATMEL_LCDC_ICR, status);
-	return IRQ_HANDLED;
-}
-
-/*
- * LCD controller task (to reset the LCD)
- */
-static void atmel_lcdfb_task(struct work_struct *work)
-{
-	struct atmel_lcdfb_info *sinfo =
-		container_of(work, struct atmel_lcdfb_info, task);
-
-	atmel_lcdfb_reset(sinfo);
-}
-
-static int __init atmel_lcdfb_init_fbinfo(struct atmel_lcdfb_info *sinfo)
-{
-	struct fb_info *info = sinfo->info;
-	int ret = 0;
-
-	info->var.activate |= FB_ACTIVATE_FORCE | FB_ACTIVATE_NOW;
-
-	dev_info(info->device,
-	       "%luKiB frame buffer at %08lx (mapped at %p)\n",
-	       (unsigned long)info->fix.smem_len / 1024,
-	       (unsigned long)info->fix.smem_start,
-	       info->screen_base);
-
-	/* Allocate colormap */
-	ret = fb_alloc_cmap(&info->cmap, 256, 0);
-	if (ret < 0)
-		dev_err(info->device, "Alloc color map failed\n");
-
-	return ret;
-}
-
-static void atmel_lcdfb_start_clock(struct atmel_lcdfb_info *sinfo)
-{
-	clk_prepare_enable(sinfo->bus_clk);
-	clk_prepare_enable(sinfo->lcdc_clk);
-}
-
-static void atmel_lcdfb_stop_clock(struct atmel_lcdfb_info *sinfo)
-{
-	clk_disable_unprepare(sinfo->bus_clk);
-	clk_disable_unprepare(sinfo->lcdc_clk);
-}
-
-#ifdef CONFIG_OF
-static const struct of_device_id atmel_lcdfb_dt_ids[] = {
-	{ .compatible = "atmel,at91sam9261-lcdc" , .data = &at91sam9261_config, },
-	{ .compatible = "atmel,at91sam9263-lcdc" , .data = &at91sam9263_config, },
-	{ .compatible = "atmel,at91sam9g10-lcdc" , .data = &at91sam9g10_config, },
-	{ .compatible = "atmel,at91sam9g45-lcdc" , .data = &at91sam9g45_config, },
-	{ .compatible = "atmel,at91sam9g45es-lcdc" , .data = &at91sam9g45es_config, },
-	{ .compatible = "atmel,at91sam9rl-lcdc" , .data = &at91sam9rl_config, },
-	{ .compatible = "atmel,at32ap-lcdc" , .data = &at32ap_config, },
-	{ /* sentinel */ }
-};
-
-MODULE_DEVICE_TABLE(of, atmel_lcdfb_dt_ids);
-
-static const char *atmel_lcdfb_wiring_modes[] = {
-	[ATMEL_LCDC_WIRING_BGR]	= "BRG",
-	[ATMEL_LCDC_WIRING_RGB]	= "RGB",
-};
-
-const int atmel_lcdfb_get_of_wiring_modes(struct device_node *np)
-{
-	const char *mode;
-	int err, i;
-
-	err = of_property_read_string(np, "atmel,lcd-wiring-mode", &mode);
-	if (err < 0)
-		return ATMEL_LCDC_WIRING_BGR;
-
-	for (i = 0; i < ARRAY_SIZE(atmel_lcdfb_wiring_modes); i++)
-		if (!strcasecmp(mode, atmel_lcdfb_wiring_modes[i]))
-			return i;
-
-	return -ENODEV;
-}
-
-static void atmel_lcdfb_power_control_gpio(struct atmel_lcdfb_pdata *pdata, int on)
-{
-	struct atmel_lcdfb_power_ctrl_gpio *og;
-
-	list_for_each_entry(og, &pdata->pwr_gpios, list)
-		gpio_set_value(og->gpio, on);
-}
-
-static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
-{
-	struct fb_info *info = sinfo->info;
-	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
-	struct fb_var_screeninfo *var = &info->var;
-	struct device *dev = &sinfo->pdev->dev;
-	struct device_node *np =dev->of_node;
-	struct device_node *display_np;
-	struct device_node *timings_np;
-	struct display_timings *timings;
-	enum of_gpio_flags flags;
-	struct atmel_lcdfb_power_ctrl_gpio *og;
-	bool is_gpio_power = false;
-	int ret = -ENOENT;
-	int i, gpio;
-
-	sinfo->config = (struct atmel_lcdfb_config*)
-		of_match_device(atmel_lcdfb_dt_ids, dev)->data;
-
-	display_np = of_parse_phandle(np, "display", 0);
-	if (!display_np) {
-		dev_err(dev, "failed to find display phandle\n");
-		return -ENOENT;
-	}
-
-	ret = of_property_read_u32(display_np, "bits-per-pixel", &var->bits_per_pixel);
-	if (ret < 0) {
-		dev_err(dev, "failed to get property bits-per-pixel\n");
-		goto put_display_node;
-	}
-
-	ret = of_property_read_u32(display_np, "atmel,guard-time", &pdata->guard_time);
-	if (ret < 0) {
-		dev_err(dev, "failed to get property atmel,guard-time\n");
-		goto put_display_node;
-	}
-
-	ret = of_property_read_u32(display_np, "atmel,lcdcon2", &pdata->default_lcdcon2);
-	if (ret < 0) {
-		dev_err(dev, "failed to get property atmel,lcdcon2\n");
-		goto put_display_node;
-	}
-
-	ret = of_property_read_u32(display_np, "atmel,dmacon", &pdata->default_dmacon);
-	if (ret < 0) {
-		dev_err(dev, "failed to get property bits-per-pixel\n");
-		goto put_display_node;
-	}
-
-	ret = -ENOMEM;
-	for (i = 0; i < of_gpio_named_count(display_np, "atmel,power-control-gpio"); i++) {
-		gpio = of_get_named_gpio_flags(display_np, "atmel,power-control-gpio",
-					       i, &flags);
-		if (gpio < 0)
-			continue;
-
-		og = devm_kzalloc(dev, sizeof(*og), GFP_KERNEL);
-		if (!og)
-			goto put_display_node;
-
-		og->gpio = gpio;
-		og->active_low = flags & OF_GPIO_ACTIVE_LOW;
-		is_gpio_power = true;
-		ret = devm_gpio_request(dev, gpio, "lcd-power-control-gpio");
-		if (ret) {
-			dev_err(dev, "request gpio %d failed\n", gpio);
-			goto put_display_node;
-		}
-
-		ret = gpio_direction_output(gpio, og->active_low);
-		if (ret) {
-			dev_err(dev, "set direction output gpio %d failed\n", gpio);
-			goto put_display_node;
-		}
-	}
-
-	if (is_gpio_power)
-		pdata->atmel_lcdfb_power_control = atmel_lcdfb_power_control_gpio;
-
-	ret = atmel_lcdfb_get_of_wiring_modes(display_np);
-	if (ret < 0) {
-		dev_err(dev, "invalid atmel,lcd-wiring-mode\n");
-		goto put_display_node;
-	}
-	pdata->lcd_wiring_mode = ret;
-
-	pdata->lcdcon_is_backlight = of_property_read_bool(display_np, "atmel,lcdcon-backlight");
-
-	timings = of_get_display_timings(display_np);
-	if (!timings) {
-		dev_err(dev, "failed to get display timings\n");
-		goto put_display_node;
-	}
-
-	timings_np = of_find_node_by_name(display_np, "display-timings");
-	if (!timings_np) {
-		dev_err(dev, "failed to find display-timings node\n");
-		goto put_display_node;
-	}
-
-	for (i = 0; i < of_get_child_count(timings_np); i++) {
-		struct videomode vm;
-		struct fb_videomode fb_vm;
-
-		ret = videomode_from_timings(timings, &vm, i);
-		if (ret < 0)
-			goto put_timings_node;
-		ret = fb_videomode_from_videomode(&vm, &fb_vm);
-		if (ret < 0)
-			goto put_timings_node;
-
-		fb_add_videomode(&fb_vm, &info->modelist);
-	}
-
-	return 0;
-
-put_timings_node:
-	of_node_put(timings_np);
-put_display_node:
-	of_node_put(display_np);
-	return ret;
-}
-#else
-static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
-{
-	return 0;
-}
-#endif
-
-static int __init atmel_lcdfb_probe(struct platform_device *pdev)
-{
-	struct device *dev = &pdev->dev;
-	struct fb_info *info;
-	struct atmel_lcdfb_info *sinfo;
-	struct atmel_lcdfb_pdata *pdata = NULL;
-	struct resource *regs = NULL;
-	struct resource *map = NULL;
-	struct fb_modelist *modelist;
-	int ret;
-
-	dev_dbg(dev, "%s BEGIN\n", __func__);
-
-	ret = -ENOMEM;
-	info = framebuffer_alloc(sizeof(struct atmel_lcdfb_info), dev);
-	if (!info) {
-		dev_err(dev, "cannot allocate memory\n");
-		goto out;
-	}
-
-	sinfo = info->par;
-	sinfo->pdev = pdev;
-	sinfo->info = info;
-
-	INIT_LIST_HEAD(&info->modelist);
-
-	if (pdev->dev.of_node) {
-		ret = atmel_lcdfb_of_init(sinfo);
-		if (ret)
-			goto free_info;
-	} else if (dev_get_platdata(dev)) {
-		struct fb_monspecs *monspecs;
-		int i;
-
-		pdata = dev_get_platdata(dev);
-		monspecs = pdata->default_monspecs;
-		sinfo->pdata = *pdata;
-
-		for (i = 0; i < monspecs->modedb_len; i++)
-			fb_add_videomode(&monspecs->modedb[i], &info->modelist);
-
-		sinfo->config = atmel_lcdfb_get_config(pdev);
-
-		info->var.bits_per_pixel = pdata->default_bpp ? pdata->default_bpp : 16;
-		memcpy(&info->monspecs, pdata->default_monspecs, sizeof(info->monspecs));
-	} else {
-		dev_err(dev, "cannot get default configuration\n");
-		goto free_info;
-	}
-
-	if (!sinfo->config)
-		goto free_info;
-
-	info->flags = ATMEL_LCDFB_FBINFO_DEFAULT;
-	info->pseudo_palette = sinfo->pseudo_palette;
-	info->fbops = &atmel_lcdfb_ops;
-
-	info->fix = atmel_lcdfb_fix;
-	strcpy(info->fix.id, sinfo->pdev->name);
-
-	/* Enable LCDC Clocks */
-	sinfo->bus_clk = clk_get(dev, "hclk");
-	if (IS_ERR(sinfo->bus_clk)) {
-		ret = PTR_ERR(sinfo->bus_clk);
-		goto free_info;
-	}
-	sinfo->lcdc_clk = clk_get(dev, "lcdc_clk");
-	if (IS_ERR(sinfo->lcdc_clk)) {
-		ret = PTR_ERR(sinfo->lcdc_clk);
-		goto put_bus_clk;
-	}
-	atmel_lcdfb_start_clock(sinfo);
-
-	modelist = list_first_entry(&info->modelist,
-			struct fb_modelist, list);
-	fb_videomode_to_var(&info->var, &modelist->mode);
-
-	atmel_lcdfb_check_var(&info->var, info);
-
-	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!regs) {
-		dev_err(dev, "resources unusable\n");
-		ret = -ENXIO;
-		goto stop_clk;
-	}
-
-	sinfo->irq_base = platform_get_irq(pdev, 0);
-	if (sinfo->irq_base < 0) {
-		dev_err(dev, "unable to get irq\n");
-		ret = sinfo->irq_base;
-		goto stop_clk;
-	}
-
-	/* Initialize video memory */
-	map = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (map) {
-		/* use a pre-allocated memory buffer */
-		info->fix.smem_start = map->start;
-		info->fix.smem_len = resource_size(map);
-		if (!request_mem_region(info->fix.smem_start,
-					info->fix.smem_len, pdev->name)) {
-			ret = -EBUSY;
-			goto stop_clk;
-		}
-
-		info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len);
-		if (!info->screen_base) {
-			ret = -ENOMEM;
-			goto release_intmem;
-		}
-
-		/*
-		 * Don't clear the framebuffer -- someone may have set
-		 * up a splash image.
-		 */
-	} else {
-		/* allocate memory buffer */
-		ret = atmel_lcdfb_alloc_video_memory(sinfo);
-		if (ret < 0) {
-			dev_err(dev, "cannot allocate framebuffer: %d\n", ret);
-			goto stop_clk;
-		}
-	}
-
-	/* LCDC registers */
-	info->fix.mmio_start = regs->start;
-	info->fix.mmio_len = resource_size(regs);
-
-	if (!request_mem_region(info->fix.mmio_start,
-				info->fix.mmio_len, pdev->name)) {
-		ret = -EBUSY;
-		goto free_fb;
-	}
-
-	sinfo->mmio = ioremap(info->fix.mmio_start, info->fix.mmio_len);
-	if (!sinfo->mmio) {
-		dev_err(dev, "cannot map LCDC registers\n");
-		ret = -ENOMEM;
-		goto release_mem;
-	}
-
-	/* Initialize PWM for contrast or backlight ("off") */
-	init_contrast(sinfo);
-
-	/* interrupt */
-	ret = request_irq(sinfo->irq_base, atmel_lcdfb_interrupt, 0, pdev->name, info);
-	if (ret) {
-		dev_err(dev, "request_irq failed: %d\n", ret);
-		goto unmap_mmio;
-	}
-
-	/* Some operations on the LCDC might sleep and
-	 * require a preemptible task context */
-	INIT_WORK(&sinfo->task, atmel_lcdfb_task);
-
-	ret = atmel_lcdfb_init_fbinfo(sinfo);
-	if (ret < 0) {
-		dev_err(dev, "init fbinfo failed: %d\n", ret);
-		goto unregister_irqs;
-	}
-
-	ret = atmel_lcdfb_set_par(info);
-	if (ret < 0) {
-		dev_err(dev, "set par failed: %d\n", ret);
-		goto unregister_irqs;
-	}
-
-	dev_set_drvdata(dev, info);
-
-	/*
-	 * Tell the world that we're ready to go
-	 */
-	ret = register_framebuffer(info);
-	if (ret < 0) {
-		dev_err(dev, "failed to register framebuffer device: %d\n", ret);
-		goto reset_drvdata;
-	}
-
-	/* Power up the LCDC screen */
-	atmel_lcdfb_power_control(sinfo, 1);
-
-	dev_info(dev, "fb%d: Atmel LCDC at 0x%08lx (mapped at %p), irq %d\n",
-		       info->node, info->fix.mmio_start, sinfo->mmio, sinfo->irq_base);
-
-	return 0;
-
-reset_drvdata:
-	dev_set_drvdata(dev, NULL);
-	fb_dealloc_cmap(&info->cmap);
-unregister_irqs:
-	cancel_work_sync(&sinfo->task);
-	free_irq(sinfo->irq_base, info);
-unmap_mmio:
-	exit_backlight(sinfo);
-	iounmap(sinfo->mmio);
-release_mem:
- 	release_mem_region(info->fix.mmio_start, info->fix.mmio_len);
-free_fb:
-	if (map)
-		iounmap(info->screen_base);
-	else
-		atmel_lcdfb_free_video_memory(sinfo);
-
-release_intmem:
-	if (map)
-		release_mem_region(info->fix.smem_start, info->fix.smem_len);
-stop_clk:
-	atmel_lcdfb_stop_clock(sinfo);
-	clk_put(sinfo->lcdc_clk);
-put_bus_clk:
-	clk_put(sinfo->bus_clk);
-free_info:
-	framebuffer_release(info);
-out:
-	dev_dbg(dev, "%s FAILED\n", __func__);
-	return ret;
-}
-
-static int __exit atmel_lcdfb_remove(struct platform_device *pdev)
-{
-	struct device *dev = &pdev->dev;
-	struct fb_info *info = dev_get_drvdata(dev);
-	struct atmel_lcdfb_info *sinfo;
-	struct atmel_lcdfb_pdata *pdata;
-
-	if (!info || !info->par)
-		return 0;
-	sinfo = info->par;
-	pdata = &sinfo->pdata;
-
-	cancel_work_sync(&sinfo->task);
-	exit_backlight(sinfo);
-	atmel_lcdfb_power_control(sinfo, 0);
-	unregister_framebuffer(info);
-	atmel_lcdfb_stop_clock(sinfo);
-	clk_put(sinfo->lcdc_clk);
-	clk_put(sinfo->bus_clk);
-	fb_dealloc_cmap(&info->cmap);
-	free_irq(sinfo->irq_base, info);
-	iounmap(sinfo->mmio);
- 	release_mem_region(info->fix.mmio_start, info->fix.mmio_len);
-	if (platform_get_resource(pdev, IORESOURCE_MEM, 1)) {
-		iounmap(info->screen_base);
-		release_mem_region(info->fix.smem_start, info->fix.smem_len);
-	} else {
-		atmel_lcdfb_free_video_memory(sinfo);
-	}
-
-	framebuffer_release(info);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-
-static int atmel_lcdfb_suspend(struct platform_device *pdev, pm_message_t mesg)
-{
-	struct fb_info *info = platform_get_drvdata(pdev);
-	struct atmel_lcdfb_info *sinfo = info->par;
-
-	/*
-	 * We don't want to handle interrupts while the clock is
-	 * stopped. It may take forever.
-	 */
-	lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0UL);
-
-	sinfo->saved_lcdcon = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_CTR);
-	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, 0);
-	atmel_lcdfb_power_control(sinfo, 0);
-	atmel_lcdfb_stop(sinfo);
-	atmel_lcdfb_stop_clock(sinfo);
-
-	return 0;
-}
-
-static int atmel_lcdfb_resume(struct platform_device *pdev)
-{
-	struct fb_info *info = platform_get_drvdata(pdev);
-	struct atmel_lcdfb_info *sinfo = info->par;
-
-	atmel_lcdfb_start_clock(sinfo);
-	atmel_lcdfb_start(sinfo);
-	atmel_lcdfb_power_control(sinfo, 1);
-	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, sinfo->saved_lcdcon);
-
-	/* Enable FIFO & DMA errors */
-	lcdc_writel(sinfo, ATMEL_LCDC_IER, ATMEL_LCDC_UFLWI
-			| ATMEL_LCDC_OWRI | ATMEL_LCDC_MERI);
-
-	return 0;
-}
-
-#else
-#define atmel_lcdfb_suspend	NULL
-#define atmel_lcdfb_resume	NULL
-#endif
-
-static struct platform_driver atmel_lcdfb_driver = {
-	.remove		= __exit_p(atmel_lcdfb_remove),
-	.suspend	= atmel_lcdfb_suspend,
-	.resume		= atmel_lcdfb_resume,
-	.id_table	= atmel_lcdfb_devtypes,
-	.driver		= {
-		.name	= "atmel_lcdfb",
-		.owner	= THIS_MODULE,
-		.of_match_table	= of_match_ptr(atmel_lcdfb_dt_ids),
-	},
-};
-
-module_platform_driver_probe(atmel_lcdfb_driver, atmel_lcdfb_probe);
-
-MODULE_DESCRIPTION("AT91/AT32 LCD Controller framebuffer driver");
-MODULE_AUTHOR("Nicolas Ferre <nicolas.ferre@atmel.com>");
-MODULE_LICENSE("GPL");