From f7018c21350204c4cf628462f229d44d03545254 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Feb 2014 15:31:38 +0200
Subject: 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>
---
 drivers/video/imxfb.c | 1075 -------------------------------------------------
 1 file changed, 1075 deletions(-)
 delete mode 100644 drivers/video/imxfb.c

(limited to 'drivers/video/imxfb.c')

diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
deleted file mode 100644
index f6e62168495..00000000000
--- a/drivers/video/imxfb.c
+++ /dev/null
@@ -1,1075 +0,0 @@
-/*
- *  Freescale i.MX Frame Buffer device driver
- *
- *  Copyright (C) 2004 Sascha Hauer, Pengutronix
- *   Based on acornfb.c Copyright (C) Russell King.
- *
- * 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.
- *
- * Please direct your questions and comments on this driver to the following
- * email address:
- *
- *	linux-arm-kernel@lists.arm.linux.org.uk
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/fb.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/cpufreq.h>
-#include <linux/clk.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/io.h>
-#include <linux/lcd.h>
-#include <linux/math64.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-
-#include <linux/regulator/consumer.h>
-
-#include <video/of_display_timing.h>
-#include <video/of_videomode.h>
-#include <video/videomode.h>
-
-#include <linux/platform_data/video-imxfb.h>
-
-/*
- * Complain if VAR is out of range.
- */
-#define DEBUG_VAR 1
-
-#define DRIVER_NAME "imx-fb"
-
-#define LCDC_SSA	0x00
-
-#define LCDC_SIZE	0x04
-#define SIZE_XMAX(x)	((((x) >> 4) & 0x3f) << 20)
-
-#define YMAX_MASK_IMX1	0x1ff
-#define YMAX_MASK_IMX21	0x3ff
-
-#define LCDC_VPW	0x08
-#define VPW_VPW(x)	((x) & 0x3ff)
-
-#define LCDC_CPOS	0x0C
-#define CPOS_CC1	(1<<31)
-#define CPOS_CC0	(1<<30)
-#define CPOS_OP		(1<<28)
-#define CPOS_CXP(x)	(((x) & 3ff) << 16)
-
-#define LCDC_LCWHB	0x10
-#define LCWHB_BK_EN	(1<<31)
-#define LCWHB_CW(w)	(((w) & 0x1f) << 24)
-#define LCWHB_CH(h)	(((h) & 0x1f) << 16)
-#define LCWHB_BD(x)	((x) & 0xff)
-
-#define LCDC_LCHCC	0x14
-
-#define LCDC_PCR	0x18
-
-#define LCDC_HCR	0x1C
-#define HCR_H_WIDTH(x)	(((x) & 0x3f) << 26)
-#define HCR_H_WAIT_1(x)	(((x) & 0xff) << 8)
-#define HCR_H_WAIT_2(x)	((x) & 0xff)
-
-#define LCDC_VCR	0x20
-#define VCR_V_WIDTH(x)	(((x) & 0x3f) << 26)
-#define VCR_V_WAIT_1(x)	(((x) & 0xff) << 8)
-#define VCR_V_WAIT_2(x)	((x) & 0xff)
-
-#define LCDC_POS	0x24
-#define POS_POS(x)	((x) & 1f)
-
-#define LCDC_LSCR1	0x28
-/* bit fields in imxfb.h */
-
-#define LCDC_PWMR	0x2C
-/* bit fields in imxfb.h */
-
-#define LCDC_DMACR	0x30
-/* bit fields in imxfb.h */
-
-#define LCDC_RMCR	0x34
-
-#define RMCR_LCDC_EN_MX1	(1<<1)
-
-#define RMCR_SELF_REF	(1<<0)
-
-#define LCDC_LCDICR	0x38
-#define LCDICR_INT_SYN	(1<<2)
-#define LCDICR_INT_CON	(1)
-
-#define LCDC_LCDISR	0x40
-#define LCDISR_UDR_ERR	(1<<3)
-#define LCDISR_ERR_RES	(1<<2)
-#define LCDISR_EOF	(1<<1)
-#define LCDISR_BOF	(1<<0)
-
-#define IMXFB_LSCR1_DEFAULT 0x00120300
-
-/* Used fb-mode. Can be set on kernel command line, therefore file-static. */
-static const char *fb_mode;
-
-/*
- * These are the bitfields for each
- * display depth that we support.
- */
-struct imxfb_rgb {
-	struct fb_bitfield	red;
-	struct fb_bitfield	green;
-	struct fb_bitfield	blue;
-	struct fb_bitfield	transp;
-};
-
-enum imxfb_type {
-	IMX1_FB,
-	IMX21_FB,
-};
-
-struct imxfb_info {
-	struct platform_device  *pdev;
-	void __iomem		*regs;
-	struct clk		*clk_ipg;
-	struct clk		*clk_ahb;
-	struct clk		*clk_per;
-	enum imxfb_type		devtype;
-	bool			enabled;
-
-	/*
-	 * These are the addresses we mapped
-	 * the framebuffer memory region to.
-	 */
-	dma_addr_t		map_dma;
-	u_int			map_size;
-
-	u_int			palette_size;
-
-	dma_addr_t		dbar1;
-	dma_addr_t		dbar2;
-
-	u_int			pcr;
-	u_int			pwmr;
-	u_int			lscr1;
-	u_int			dmacr;
-	bool			cmap_inverse;
-	bool			cmap_static;
-
-	struct imx_fb_videomode *mode;
-	int			num_modes;
-
-	struct regulator	*lcd_pwr;
-};
-
-static struct platform_device_id imxfb_devtype[] = {
-	{
-		.name = "imx1-fb",
-		.driver_data = IMX1_FB,
-	}, {
-		.name = "imx21-fb",
-		.driver_data = IMX21_FB,
-	}, {
-		/* sentinel */
-	}
-};
-MODULE_DEVICE_TABLE(platform, imxfb_devtype);
-
-static struct of_device_id imxfb_of_dev_id[] = {
-	{
-		.compatible = "fsl,imx1-fb",
-		.data = &imxfb_devtype[IMX1_FB],
-	}, {
-		.compatible = "fsl,imx21-fb",
-		.data = &imxfb_devtype[IMX21_FB],
-	}, {
-		/* sentinel */
-	}
-};
-MODULE_DEVICE_TABLE(of, imxfb_of_dev_id);
-
-static inline int is_imx1_fb(struct imxfb_info *fbi)
-{
-	return fbi->devtype == IMX1_FB;
-}
-
-#define IMX_NAME	"IMX"
-
-/*
- * Minimum X and Y resolutions
- */
-#define MIN_XRES	64
-#define MIN_YRES	64
-
-/* Actually this really is 18bit support, the lowest 2 bits of each colour
- * are unused in hardware. We claim to have 24bit support to make software
- * like X work, which does not support 18bit.
- */
-static struct imxfb_rgb def_rgb_18 = {
-	.red	= {.offset = 16, .length = 8,},
-	.green	= {.offset = 8, .length = 8,},
-	.blue	= {.offset = 0, .length = 8,},
-	.transp = {.offset = 0, .length = 0,},
-};
-
-static struct imxfb_rgb def_rgb_16_tft = {
-	.red	= {.offset = 11, .length = 5,},
-	.green	= {.offset = 5, .length = 6,},
-	.blue	= {.offset = 0, .length = 5,},
-	.transp = {.offset = 0, .length = 0,},
-};
-
-static struct imxfb_rgb def_rgb_16_stn = {
-	.red	= {.offset = 8, .length = 4,},
-	.green	= {.offset = 4, .length = 4,},
-	.blue	= {.offset = 0, .length = 4,},
-	.transp = {.offset = 0, .length = 0,},
-};
-
-static struct imxfb_rgb def_rgb_8 = {
-	.red	= {.offset = 0, .length = 8,},
-	.green	= {.offset = 0, .length = 8,},
-	.blue	= {.offset = 0, .length = 8,},
-	.transp = {.offset = 0, .length = 0,},
-};
-
-static int imxfb_activate_var(struct fb_var_screeninfo *var,
-		struct fb_info *info);
-
-static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf)
-{
-	chan &= 0xffff;
-	chan >>= 16 - bf->length;
-	return chan << bf->offset;
-}
-
-static int imxfb_setpalettereg(u_int regno, u_int red, u_int green, u_int blue,
-		u_int trans, struct fb_info *info)
-{
-	struct imxfb_info *fbi = info->par;
-	u_int val, ret = 1;
-
-#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
-	if (regno < fbi->palette_size) {
-		val = (CNVT_TOHW(red, 4) << 8) |
-		      (CNVT_TOHW(green,4) << 4) |
-		      CNVT_TOHW(blue,  4);
-
-		writel(val, fbi->regs + 0x800 + (regno << 2));
-		ret = 0;
-	}
-	return ret;
-}
-
-static int imxfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
-		   u_int trans, struct fb_info *info)
-{
-	struct imxfb_info *fbi = info->par;
-	unsigned int val;
-	int ret = 1;
-
-	/*
-	 * If inverse mode was selected, invert all the colours
-	 * rather than the register number.  The register number
-	 * is what you poke into the framebuffer to produce the
-	 * colour you requested.
-	 */
-	if (fbi->cmap_inverse) {
-		red   = 0xffff - red;
-		green = 0xffff - green;
-		blue  = 0xffff - blue;
-	}
-
-	/*
-	 * If greyscale is true, then we convert the RGB value
-	 * to greyscale no mater what visual we are using.
-	 */
-	if (info->var.grayscale)
-		red = green = blue = (19595 * red + 38470 * green +
-					7471 * blue) >> 16;
-
-	switch (info->fix.visual) {
-	case FB_VISUAL_TRUECOLOR:
-		/*
-		 * 12 or 16-bit True Colour.  We encode the RGB value
-		 * according to the RGB bitfield information.
-		 */
-		if (regno < 16) {
-			u32 *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_STATIC_PSEUDOCOLOR:
-	case FB_VISUAL_PSEUDOCOLOR:
-		ret = imxfb_setpalettereg(regno, red, green, blue, trans, info);
-		break;
-	}
-
-	return ret;
-}
-
-static const struct imx_fb_videomode *imxfb_find_mode(struct imxfb_info *fbi)
-{
-	struct imx_fb_videomode *m;
-	int i;
-
-	if (!fb_mode)
-		return &fbi->mode[0];
-
-	for (i = 0, m = &fbi->mode[0]; i < fbi->num_modes; i++, m++) {
-		if (!strcmp(m->mode.name, fb_mode))
-			return m;
-	}
-	return NULL;
-}
-
-/*
- *  imxfb_check_var():
- *    Round up in the following order: bits_per_pixel, xres,
- *    yres, xres_virtual, yres_virtual, xoffset, yoffset, grayscale,
- *    bitfields, horizontal timing, vertical timing.
- */
-static int imxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
-{
-	struct imxfb_info *fbi = info->par;
-	struct imxfb_rgb *rgb;
-	const struct imx_fb_videomode *imxfb_mode;
-	unsigned long lcd_clk;
-	unsigned long long tmp;
-	u32 pcr = 0;
-
-	if (var->xres < MIN_XRES)
-		var->xres = MIN_XRES;
-	if (var->yres < MIN_YRES)
-		var->yres = MIN_YRES;
-
-	imxfb_mode = imxfb_find_mode(fbi);
-	if (!imxfb_mode)
-		return -EINVAL;
-
-	var->xres		= imxfb_mode->mode.xres;
-	var->yres		= imxfb_mode->mode.yres;
-	var->bits_per_pixel	= imxfb_mode->bpp;
-	var->pixclock		= imxfb_mode->mode.pixclock;
-	var->hsync_len		= imxfb_mode->mode.hsync_len;
-	var->left_margin	= imxfb_mode->mode.left_margin;
-	var->right_margin	= imxfb_mode->mode.right_margin;
-	var->vsync_len		= imxfb_mode->mode.vsync_len;
-	var->upper_margin	= imxfb_mode->mode.upper_margin;
-	var->lower_margin	= imxfb_mode->mode.lower_margin;
-	var->sync		= imxfb_mode->mode.sync;
-	var->xres_virtual	= max(var->xres_virtual, var->xres);
-	var->yres_virtual	= max(var->yres_virtual, var->yres);
-
-	pr_debug("var->bits_per_pixel=%d\n", var->bits_per_pixel);
-
-	lcd_clk = clk_get_rate(fbi->clk_per);
-
-	tmp = var->pixclock * (unsigned long long)lcd_clk;
-
-	do_div(tmp, 1000000);
-
-	if (do_div(tmp, 1000000) > 500000)
-		tmp++;
-
-	pcr = (unsigned int)tmp;
-
-	if (--pcr > 0x3F) {
-		pcr = 0x3F;
-		printk(KERN_WARNING "Must limit pixel clock to %luHz\n",
-				lcd_clk / pcr);
-	}
-
-	switch (var->bits_per_pixel) {
-	case 32:
-		pcr |= PCR_BPIX_18;
-		rgb = &def_rgb_18;
-		break;
-	case 16:
-	default:
-		if (is_imx1_fb(fbi))
-			pcr |= PCR_BPIX_12;
-		else
-			pcr |= PCR_BPIX_16;
-
-		if (imxfb_mode->pcr & PCR_TFT)
-			rgb = &def_rgb_16_tft;
-		else
-			rgb = &def_rgb_16_stn;
-		break;
-	case 8:
-		pcr |= PCR_BPIX_8;
-		rgb = &def_rgb_8;
-		break;
-	}
-
-	/* add sync polarities */
-	pcr |= imxfb_mode->pcr & ~(0x3f | (7 << 25));
-
-	fbi->pcr = pcr;
-
-	/*
-	 * Copy the RGB parameters for this display
-	 * from the machine specific parameters.
-	 */
-	var->red    = rgb->red;
-	var->green  = rgb->green;
-	var->blue   = rgb->blue;
-	var->transp = rgb->transp;
-
-	pr_debug("RGBT length = %d:%d:%d:%d\n",
-		var->red.length, var->green.length, var->blue.length,
-		var->transp.length);
-
-	pr_debug("RGBT offset = %d:%d:%d:%d\n",
-		var->red.offset, var->green.offset, var->blue.offset,
-		var->transp.offset);
-
-	return 0;
-}
-
-/*
- * imxfb_set_par():
- *	Set the user defined part of the display for the specified console
- */
-static int imxfb_set_par(struct fb_info *info)
-{
-	struct imxfb_info *fbi = info->par;
-	struct fb_var_screeninfo *var = &info->var;
-
-	if (var->bits_per_pixel == 16 || var->bits_per_pixel == 32)
-		info->fix.visual = FB_VISUAL_TRUECOLOR;
-	else if (!fbi->cmap_static)
-		info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
-	else {
-		/*
-		 * Some people have weird ideas about wanting static
-		 * pseudocolor maps.  I suspect their user space
-		 * applications are broken.
-		 */
-		info->fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR;
-	}
-
-	info->fix.line_length = var->xres_virtual * var->bits_per_pixel / 8;
-	fbi->palette_size = var->bits_per_pixel == 8 ? 256 : 16;
-
-	imxfb_activate_var(var, info);
-
-	return 0;
-}
-
-static void imxfb_enable_controller(struct imxfb_info *fbi)
-{
-
-	if (fbi->enabled)
-		return;
-
-	pr_debug("Enabling LCD controller\n");
-
-	writel(fbi->map_dma, fbi->regs + LCDC_SSA);
-
-	/* panning offset 0 (0 pixel offset)        */
-	writel(0x00000000, fbi->regs + LCDC_POS);
-
-	/* disable hardware cursor */
-	writel(readl(fbi->regs + LCDC_CPOS) & ~(CPOS_CC0 | CPOS_CC1),
-		fbi->regs + LCDC_CPOS);
-
-	/*
-	 * RMCR_LCDC_EN_MX1 is present on i.MX1 only, but doesn't hurt
-	 * on other SoCs
-	 */
-	writel(RMCR_LCDC_EN_MX1, fbi->regs + LCDC_RMCR);
-
-	clk_prepare_enable(fbi->clk_ipg);
-	clk_prepare_enable(fbi->clk_ahb);
-	clk_prepare_enable(fbi->clk_per);
-	fbi->enabled = true;
-}
-
-static void imxfb_disable_controller(struct imxfb_info *fbi)
-{
-	if (!fbi->enabled)
-		return;
-
-	pr_debug("Disabling LCD controller\n");
-
-	clk_disable_unprepare(fbi->clk_per);
-	clk_disable_unprepare(fbi->clk_ipg);
-	clk_disable_unprepare(fbi->clk_ahb);
-	fbi->enabled = false;
-
-	writel(0, fbi->regs + LCDC_RMCR);
-}
-
-static int imxfb_blank(int blank, struct fb_info *info)
-{
-	struct imxfb_info *fbi = info->par;
-
-	pr_debug("imxfb_blank: blank=%d\n", blank);
-
-	switch (blank) {
-	case FB_BLANK_POWERDOWN:
-	case FB_BLANK_VSYNC_SUSPEND:
-	case FB_BLANK_HSYNC_SUSPEND:
-	case FB_BLANK_NORMAL:
-		imxfb_disable_controller(fbi);
-		break;
-
-	case FB_BLANK_UNBLANK:
-		imxfb_enable_controller(fbi);
-		break;
-	}
-	return 0;
-}
-
-static struct fb_ops imxfb_ops = {
-	.owner		= THIS_MODULE,
-	.fb_check_var	= imxfb_check_var,
-	.fb_set_par	= imxfb_set_par,
-	.fb_setcolreg	= imxfb_setcolreg,
-	.fb_fillrect	= cfb_fillrect,
-	.fb_copyarea	= cfb_copyarea,
-	.fb_imageblit	= cfb_imageblit,
-	.fb_blank	= imxfb_blank,
-};
-
-/*
- * imxfb_activate_var():
- *	Configures LCD Controller based on entries in var parameter.  Settings are
- *	only written to the controller if changes were made.
- */
-static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *info)
-{
-	struct imxfb_info *fbi = info->par;
-	u32 ymax_mask = is_imx1_fb(fbi) ? YMAX_MASK_IMX1 : YMAX_MASK_IMX21;
-
-	pr_debug("var: xres=%d hslen=%d lm=%d rm=%d\n",
-		var->xres, var->hsync_len,
-		var->left_margin, var->right_margin);
-	pr_debug("var: yres=%d vslen=%d um=%d bm=%d\n",
-		var->yres, var->vsync_len,
-		var->upper_margin, var->lower_margin);
-
-#if DEBUG_VAR
-	if (var->xres < 16        || var->xres > 1024)
-		printk(KERN_ERR "%s: invalid xres %d\n",
-			info->fix.id, var->xres);
-	if (var->hsync_len < 1    || var->hsync_len > 64)
-		printk(KERN_ERR "%s: invalid hsync_len %d\n",
-			info->fix.id, var->hsync_len);
-	if (var->left_margin > 255)
-		printk(KERN_ERR "%s: invalid left_margin %d\n",
-			info->fix.id, var->left_margin);
-	if (var->right_margin > 255)
-		printk(KERN_ERR "%s: invalid right_margin %d\n",
-			info->fix.id, var->right_margin);
-	if (var->yres < 1 || var->yres > ymax_mask)
-		printk(KERN_ERR "%s: invalid yres %d\n",
-			info->fix.id, var->yres);
-	if (var->vsync_len > 100)
-		printk(KERN_ERR "%s: invalid vsync_len %d\n",
-			info->fix.id, var->vsync_len);
-	if (var->upper_margin > 63)
-		printk(KERN_ERR "%s: invalid upper_margin %d\n",
-			info->fix.id, var->upper_margin);
-	if (var->lower_margin > 255)
-		printk(KERN_ERR "%s: invalid lower_margin %d\n",
-			info->fix.id, var->lower_margin);
-#endif
-
-	/* physical screen start address	    */
-	writel(VPW_VPW(var->xres * var->bits_per_pixel / 8 / 4),
-		fbi->regs + LCDC_VPW);
-
-	writel(HCR_H_WIDTH(var->hsync_len - 1) |
-		HCR_H_WAIT_1(var->right_margin - 1) |
-		HCR_H_WAIT_2(var->left_margin - 3),
-		fbi->regs + LCDC_HCR);
-
-	writel(VCR_V_WIDTH(var->vsync_len) |
-		VCR_V_WAIT_1(var->lower_margin) |
-		VCR_V_WAIT_2(var->upper_margin),
-		fbi->regs + LCDC_VCR);
-
-	writel(SIZE_XMAX(var->xres) | (var->yres & ymax_mask),
-			fbi->regs + LCDC_SIZE);
-
-	writel(fbi->pcr, fbi->regs + LCDC_PCR);
-	if (fbi->pwmr)
-		writel(fbi->pwmr, fbi->regs + LCDC_PWMR);
-	writel(fbi->lscr1, fbi->regs + LCDC_LSCR1);
-
-	/* dmacr = 0 is no valid value, as we need DMA control marks. */
-	if (fbi->dmacr)
-		writel(fbi->dmacr, fbi->regs + LCDC_DMACR);
-
-	return 0;
-}
-
-static int imxfb_init_fbinfo(struct platform_device *pdev)
-{
-	struct imx_fb_platform_data *pdata = dev_get_platdata(&pdev->dev);
-	struct fb_info *info = dev_get_drvdata(&pdev->dev);
-	struct imxfb_info *fbi = info->par;
-	struct device_node *np;
-
-	pr_debug("%s\n",__func__);
-
-	info->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
-	if (!info->pseudo_palette)
-		return -ENOMEM;
-
-	memset(fbi, 0, sizeof(struct imxfb_info));
-
-	fbi->devtype = pdev->id_entry->driver_data;
-
-	strlcpy(info->fix.id, IMX_NAME, sizeof(info->fix.id));
-
-	info->fix.type			= FB_TYPE_PACKED_PIXELS;
-	info->fix.type_aux		= 0;
-	info->fix.xpanstep		= 0;
-	info->fix.ypanstep		= 0;
-	info->fix.ywrapstep		= 0;
-	info->fix.accel			= FB_ACCEL_NONE;
-
-	info->var.nonstd		= 0;
-	info->var.activate		= FB_ACTIVATE_NOW;
-	info->var.height		= -1;
-	info->var.width	= -1;
-	info->var.accel_flags		= 0;
-	info->var.vmode			= FB_VMODE_NONINTERLACED;
-
-	info->fbops			= &imxfb_ops;
-	info->flags			= FBINFO_FLAG_DEFAULT |
-					  FBINFO_READS_FAST;
-	if (pdata) {
-		fbi->lscr1			= pdata->lscr1;
-		fbi->dmacr			= pdata->dmacr;
-		fbi->pwmr			= pdata->pwmr;
-	} else {
-		np = pdev->dev.of_node;
-		info->var.grayscale = of_property_read_bool(np,
-						"cmap-greyscale");
-		fbi->cmap_inverse = of_property_read_bool(np, "cmap-inverse");
-		fbi->cmap_static = of_property_read_bool(np, "cmap-static");
-
-		fbi->lscr1 = IMXFB_LSCR1_DEFAULT;
-
-		of_property_read_u32(np, "fsl,lpccr", &fbi->pwmr);
-
-		of_property_read_u32(np, "fsl,lscr1", &fbi->lscr1);
-
-		of_property_read_u32(np, "fsl,dmacr", &fbi->dmacr);
-	}
-
-	return 0;
-}
-
-static int imxfb_of_read_mode(struct device *dev, struct device_node *np,
-		struct imx_fb_videomode *imxfb_mode)
-{
-	int ret;
-	struct fb_videomode *of_mode = &imxfb_mode->mode;
-	u32 bpp;
-	u32 pcr;
-
-	ret = of_property_read_string(np, "model", &of_mode->name);
-	if (ret)
-		of_mode->name = NULL;
-
-	ret = of_get_fb_videomode(np, of_mode, OF_USE_NATIVE_MODE);
-	if (ret) {
-		dev_err(dev, "Failed to get videomode from DT\n");
-		return ret;
-	}
-
-	ret = of_property_read_u32(np, "bits-per-pixel", &bpp);
-	ret |= of_property_read_u32(np, "fsl,pcr", &pcr);
-
-	if (ret) {
-		dev_err(dev, "Failed to read bpp and pcr from DT\n");
-		return -EINVAL;
-	}
-
-	if (bpp < 1 || bpp > 255) {
-		dev_err(dev, "Bits per pixel have to be between 1 and 255\n");
-		return -EINVAL;
-	}
-
-	imxfb_mode->bpp = bpp;
-	imxfb_mode->pcr = pcr;
-
-	return 0;
-}
-
-static int imxfb_lcd_check_fb(struct lcd_device *lcddev, struct fb_info *fi)
-{
-	struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev);
-
-	if (!fi || fi->par == fbi)
-		return 1;
-
-	return 0;
-}
-
-static int imxfb_lcd_get_contrast(struct lcd_device *lcddev)
-{
-	struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev);
-
-	return fbi->pwmr & 0xff;
-}
-
-static int imxfb_lcd_set_contrast(struct lcd_device *lcddev, int contrast)
-{
-	struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev);
-
-	if (fbi->pwmr && fbi->enabled) {
-		if (contrast > 255)
-			contrast = 255;
-		else if (contrast < 0)
-			contrast = 0;
-
-		fbi->pwmr &= ~0xff;
-		fbi->pwmr |= contrast;
-
-		writel(fbi->pwmr, fbi->regs + LCDC_PWMR);
-	}
-
-	return 0;
-}
-
-static int imxfb_lcd_get_power(struct lcd_device *lcddev)
-{
-	struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev);
-
-	if (!IS_ERR(fbi->lcd_pwr))
-		return regulator_is_enabled(fbi->lcd_pwr);
-
-	return 1;
-}
-
-static int imxfb_lcd_set_power(struct lcd_device *lcddev, int power)
-{
-	struct imxfb_info *fbi = dev_get_drvdata(&lcddev->dev);
-
-	if (!IS_ERR(fbi->lcd_pwr)) {
-		if (power)
-			return regulator_enable(fbi->lcd_pwr);
-		else
-			return regulator_disable(fbi->lcd_pwr);
-	}
-
-	return 0;
-}
-
-static struct lcd_ops imxfb_lcd_ops = {
-	.check_fb	= imxfb_lcd_check_fb,
-	.get_contrast	= imxfb_lcd_get_contrast,
-	.set_contrast	= imxfb_lcd_set_contrast,
-	.get_power	= imxfb_lcd_get_power,
-	.set_power	= imxfb_lcd_set_power,
-};
-
-static int imxfb_setup(void)
-{
-	char *opt, *options = NULL;
-
-	if (fb_get_options("imxfb", &options))
-		return -ENODEV;
-
-	if (!options || !*options)
-		return 0;
-
-	while ((opt = strsep(&options, ",")) != NULL) {
-		if (!*opt)
-			continue;
-		else
-			fb_mode = opt;
-	}
-
-	return 0;
-}
-
-static int imxfb_probe(struct platform_device *pdev)
-{
-	struct imxfb_info *fbi;
-	struct lcd_device *lcd;
-	struct fb_info *info;
-	struct imx_fb_platform_data *pdata;
-	struct resource *res;
-	struct imx_fb_videomode *m;
-	const struct of_device_id *of_id;
-	int ret, i;
-	int bytes_per_pixel;
-
-	dev_info(&pdev->dev, "i.MX Framebuffer driver\n");
-
-	ret = imxfb_setup();
-	if (ret < 0)
-		return ret;
-
-	of_id = of_match_device(imxfb_of_dev_id, &pdev->dev);
-	if (of_id)
-		pdev->id_entry = of_id->data;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENODEV;
-
-	pdata = dev_get_platdata(&pdev->dev);
-
-	info = framebuffer_alloc(sizeof(struct imxfb_info), &pdev->dev);
-	if (!info)
-		return -ENOMEM;
-
-	fbi = info->par;
-
-	platform_set_drvdata(pdev, info);
-
-	ret = imxfb_init_fbinfo(pdev);
-	if (ret < 0)
-		goto failed_init;
-
-	if (pdata) {
-		if (!fb_mode)
-			fb_mode = pdata->mode[0].mode.name;
-
-		fbi->mode = pdata->mode;
-		fbi->num_modes = pdata->num_modes;
-	} else {
-		struct device_node *display_np;
-		fb_mode = NULL;
-
-		display_np = of_parse_phandle(pdev->dev.of_node, "display", 0);
-		if (!display_np) {
-			dev_err(&pdev->dev, "No display defined in devicetree\n");
-			ret = -EINVAL;
-			goto failed_of_parse;
-		}
-
-		/*
-		 * imxfb does not support more modes, we choose only the native
-		 * mode.
-		 */
-		fbi->num_modes = 1;
-
-		fbi->mode = devm_kzalloc(&pdev->dev,
-				sizeof(struct imx_fb_videomode), GFP_KERNEL);
-		if (!fbi->mode) {
-			ret = -ENOMEM;
-			goto failed_of_parse;
-		}
-
-		ret = imxfb_of_read_mode(&pdev->dev, display_np, fbi->mode);
-		if (ret)
-			goto failed_of_parse;
-	}
-
-	/* Calculate maximum bytes used per pixel. In most cases this should
-	 * be the same as m->bpp/8 */
-	m = &fbi->mode[0];
-	bytes_per_pixel = (m->bpp + 7) / 8;
-	for (i = 0; i < fbi->num_modes; i++, m++)
-		info->fix.smem_len = max_t(size_t, info->fix.smem_len,
-				m->mode.xres * m->mode.yres * bytes_per_pixel);
-
-	res = request_mem_region(res->start, resource_size(res),
-				DRIVER_NAME);
-	if (!res) {
-		ret = -EBUSY;
-		goto failed_req;
-	}
-
-	fbi->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
-	if (IS_ERR(fbi->clk_ipg)) {
-		ret = PTR_ERR(fbi->clk_ipg);
-		goto failed_getclock;
-	}
-
-	fbi->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
-	if (IS_ERR(fbi->clk_ahb)) {
-		ret = PTR_ERR(fbi->clk_ahb);
-		goto failed_getclock;
-	}
-
-	fbi->clk_per = devm_clk_get(&pdev->dev, "per");
-	if (IS_ERR(fbi->clk_per)) {
-		ret = PTR_ERR(fbi->clk_per);
-		goto failed_getclock;
-	}
-
-	fbi->regs = ioremap(res->start, resource_size(res));
-	if (fbi->regs == NULL) {
-		dev_err(&pdev->dev, "Cannot map frame buffer registers\n");
-		ret = -ENOMEM;
-		goto failed_ioremap;
-	}
-
-	fbi->map_size = PAGE_ALIGN(info->fix.smem_len);
-	info->screen_base = dma_alloc_writecombine(&pdev->dev, fbi->map_size,
-						   &fbi->map_dma, GFP_KERNEL);
-
-	if (!info->screen_base) {
-		dev_err(&pdev->dev, "Failed to allocate video RAM: %d\n", ret);
-		ret = -ENOMEM;
-		goto failed_map;
-	}
-
-	info->fix.smem_start = fbi->map_dma;
-
-	if (pdata && pdata->init) {
-		ret = pdata->init(fbi->pdev);
-		if (ret)
-			goto failed_platform_init;
-	}
-
-
-	INIT_LIST_HEAD(&info->modelist);
-	for (i = 0; i < fbi->num_modes; i++)
-		fb_add_videomode(&fbi->mode[i].mode, &info->modelist);
-
-	/*
-	 * This makes sure that our colour bitfield
-	 * descriptors are correctly initialised.
-	 */
-	imxfb_check_var(&info->var, info);
-
-	ret = fb_alloc_cmap(&info->cmap, 1 << info->var.bits_per_pixel, 0);
-	if (ret < 0)
-		goto failed_cmap;
-
-	imxfb_set_par(info);
-	ret = register_framebuffer(info);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "failed to register framebuffer\n");
-		goto failed_register;
-	}
-
-	fbi->lcd_pwr = devm_regulator_get(&pdev->dev, "lcd");
-	if (IS_ERR(fbi->lcd_pwr) && (PTR_ERR(fbi->lcd_pwr) == -EPROBE_DEFER)) {
-		ret = -EPROBE_DEFER;
-		goto failed_lcd;
-	}
-
-	lcd = devm_lcd_device_register(&pdev->dev, "imxfb-lcd", &pdev->dev, fbi,
-				       &imxfb_lcd_ops);
-	if (IS_ERR(lcd)) {
-		ret = PTR_ERR(lcd);
-		goto failed_lcd;
-	}
-
-	lcd->props.max_contrast = 0xff;
-
-	imxfb_enable_controller(fbi);
-	fbi->pdev = pdev;
-
-	return 0;
-
-failed_lcd:
-	unregister_framebuffer(info);
-
-failed_register:
-	fb_dealloc_cmap(&info->cmap);
-failed_cmap:
-	if (pdata && pdata->exit)
-		pdata->exit(fbi->pdev);
-failed_platform_init:
-	dma_free_writecombine(&pdev->dev, fbi->map_size, info->screen_base,
-			      fbi->map_dma);
-failed_map:
-	iounmap(fbi->regs);
-failed_ioremap:
-failed_getclock:
-	release_mem_region(res->start, resource_size(res));
-failed_req:
-failed_of_parse:
-	kfree(info->pseudo_palette);
-failed_init:
-	framebuffer_release(info);
-	return ret;
-}
-
-static int imxfb_remove(struct platform_device *pdev)
-{
-	struct imx_fb_platform_data *pdata;
-	struct fb_info *info = platform_get_drvdata(pdev);
-	struct imxfb_info *fbi = info->par;
-	struct resource *res;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-	imxfb_disable_controller(fbi);
-
-	unregister_framebuffer(info);
-
-	pdata = dev_get_platdata(&pdev->dev);
-	if (pdata && pdata->exit)
-		pdata->exit(fbi->pdev);
-
-	fb_dealloc_cmap(&info->cmap);
-	kfree(info->pseudo_palette);
-	framebuffer_release(info);
-
-	dma_free_writecombine(&pdev->dev, fbi->map_size, info->screen_base,
-			      fbi->map_dma);
-
-	iounmap(fbi->regs);
-	release_mem_region(res->start, resource_size(res));
-
-	return 0;
-}
-
-static int __maybe_unused imxfb_suspend(struct device *dev)
-{
-	struct fb_info *info = dev_get_drvdata(dev);
-	struct imxfb_info *fbi = info->par;
-
-	imxfb_disable_controller(fbi);
-
-	return 0;
-}
-
-static int __maybe_unused imxfb_resume(struct device *dev)
-{
-	struct fb_info *info = dev_get_drvdata(dev);
-	struct imxfb_info *fbi = info->par;
-
-	imxfb_enable_controller(fbi);
-
-	return 0;
-}
-
-static SIMPLE_DEV_PM_OPS(imxfb_pm_ops, imxfb_suspend, imxfb_resume);
-
-static struct platform_driver imxfb_driver = {
-	.driver		= {
-		.name	= DRIVER_NAME,
-		.of_match_table = imxfb_of_dev_id,
-		.owner	= THIS_MODULE,
-		.pm	= &imxfb_pm_ops,
-	},
-	.probe		= imxfb_probe,
-	.remove		= imxfb_remove,
-	.id_table	= imxfb_devtype,
-};
-module_platform_driver(imxfb_driver);
-
-MODULE_DESCRIPTION("Freescale i.MX framebuffer driver");
-MODULE_AUTHOR("Sascha Hauer, Pengutronix");
-MODULE_LICENSE("GPL");
-- 
cgit v1.2.3-18-g5258