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, 656 deletions

diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
deleted file mode 100644
index 14d6b3793e0a..000000000000
--- a/drivers/video/amba-clcd.c
+++ /dev/null
@@ -1,656 +0,0 @@
-/*
- *  linux/drivers/video/amba-clcd.c
- *
- * Copyright (C) 2001 ARM Limited, by David A Rusling
- * Updated to 2.5, Deep Blue Solutions Ltd.
- *
- * 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.
- *
- *  ARM PrimeCell PL110 Color LCD Controller
- */
-#include <linux/dma-mapping.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/mm.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/list.h>
-#include <linux/amba/bus.h>
-#include <linux/amba/clcd.h>
-#include <linux/clk.h>
-#include <linux/hardirq.h>
-
-#include <asm/sizes.h>
-
-#define to_clcd(info)	container_of(info, struct clcd_fb, fb)
-
-/* This is limited to 16 characters when displayed by X startup */
-static const char *clcd_name = "CLCD FB";
-
-/*
- * Unfortunately, the enable/disable functions may be called either from
- * process or IRQ context, and we _need_ to delay.  This is _not_ good.
- */
-static inline void clcdfb_sleep(unsigned int ms)
-{
-	if (in_atomic()) {
-		mdelay(ms);
-	} else {
-		msleep(ms);
-	}
-}
-
-static inline void clcdfb_set_start(struct clcd_fb *fb)
-{
-	unsigned long ustart = fb->fb.fix.smem_start;
-	unsigned long lstart;
-
-	ustart += fb->fb.var.yoffset * fb->fb.fix.line_length;
-	lstart = ustart + fb->fb.var.yres * fb->fb.fix.line_length / 2;
-
-	writel(ustart, fb->regs + CLCD_UBAS);
-	writel(lstart, fb->regs + CLCD_LBAS);
-}
-
-static void clcdfb_disable(struct clcd_fb *fb)
-{
-	u32 val;
-
-	if (fb->board->disable)
-		fb->board->disable(fb);
-
-	val = readl(fb->regs + fb->off_cntl);
-	if (val & CNTL_LCDPWR) {
-		val &= ~CNTL_LCDPWR;
-		writel(val, fb->regs + fb->off_cntl);
-
-		clcdfb_sleep(20);
-	}
-	if (val & CNTL_LCDEN) {
-		val &= ~CNTL_LCDEN;
-		writel(val, fb->regs + fb->off_cntl);
-	}
-
-	/*
-	 * Disable CLCD clock source.
-	 */
-	if (fb->clk_enabled) {
-		fb->clk_enabled = false;
-		clk_disable(fb->clk);
-	}
-}
-
-static void clcdfb_enable(struct clcd_fb *fb, u32 cntl)
-{
-	/*
-	 * Enable the CLCD clock source.
-	 */
-	if (!fb->clk_enabled) {
-		fb->clk_enabled = true;
-		clk_enable(fb->clk);
-	}
-
-	/*
-	 * Bring up by first enabling..
-	 */
-	cntl |= CNTL_LCDEN;
-	writel(cntl, fb->regs + fb->off_cntl);
-
-	clcdfb_sleep(20);
-
-	/*
-	 * and now apply power.
-	 */
-	cntl |= CNTL_LCDPWR;
-	writel(cntl, fb->regs + fb->off_cntl);
-
-	/*
-	 * finally, enable the interface.
-	 */
-	if (fb->board->enable)
-		fb->board->enable(fb);
-}
-
-static int
-clcdfb_set_bitfields(struct clcd_fb *fb, struct fb_var_screeninfo *var)
-{
-	u32 caps;
-	int ret = 0;
-
-	if (fb->panel->caps && fb->board->caps)
-		caps = fb->panel->caps & fb->board->caps;
-	else {
-		/* Old way of specifying what can be used */
-		caps = fb->panel->cntl & CNTL_BGR ?
-			CLCD_CAP_BGR : CLCD_CAP_RGB;
-		/* But mask out 444 modes as they weren't supported */
-		caps &= ~CLCD_CAP_444;
-	}
-
-	/* Only TFT panels can do RGB888/BGR888 */
-	if (!(fb->panel->cntl & CNTL_LCDTFT))
-		caps &= ~CLCD_CAP_888;
-
-	memset(&var->transp, 0, sizeof(var->transp));
-
-	var->red.msb_right = 0;
-	var->green.msb_right = 0;
-	var->blue.msb_right = 0;
-
-	switch (var->bits_per_pixel) {
-	case 1:
-	case 2:
-	case 4:
-	case 8:
-		/* If we can't do 5551, reject */
-		caps &= CLCD_CAP_5551;
-		if (!caps) {
-			ret = -EINVAL;
-			break;
-		}
-
-		var->red.length		= var->bits_per_pixel;
-		var->red.offset		= 0;
-		var->green.length	= var->bits_per_pixel;
-		var->green.offset	= 0;
-		var->blue.length	= var->bits_per_pixel;
-		var->blue.offset	= 0;
-		break;
-
-	case 16:
-		/* If we can't do 444, 5551 or 565, reject */
-		if (!(caps & (CLCD_CAP_444 | CLCD_CAP_5551 | CLCD_CAP_565))) {
-			ret = -EINVAL;
-			break;
-		}
-
-		/*
-		 * Green length can be 4, 5 or 6 depending whether
-		 * we're operating in 444, 5551 or 565 mode.
-		 */
-		if (var->green.length == 4 && caps & CLCD_CAP_444)
-			caps &= CLCD_CAP_444;
-		if (var->green.length == 5 && caps & CLCD_CAP_5551)
-			caps &= CLCD_CAP_5551;
-		else if (var->green.length == 6 && caps & CLCD_CAP_565)
-			caps &= CLCD_CAP_565;
-		else {
-			/*
-			 * PL110 officially only supports RGB555,
-			 * but may be wired up to allow RGB565.
-			 */
-			if (caps & CLCD_CAP_565) {
-				var->green.length = 6;
-				caps &= CLCD_CAP_565;
-			} else if (caps & CLCD_CAP_5551) {
-				var->green.length = 5;
-				caps &= CLCD_CAP_5551;
-			} else {
-				var->green.length = 4;
-				caps &= CLCD_CAP_444;
-			}
-		}
-
-		if (var->green.length >= 5) {
-			var->red.length = 5;
-			var->blue.length = 5;
-		} else {
-			var->red.length = 4;
-			var->blue.length = 4;
-		}
-		break;
-	case 32:
-		/* If we can't do 888, reject */
-		caps &= CLCD_CAP_888;
-		if (!caps) {
-			ret = -EINVAL;
-			break;
-		}
-
-		var->red.length = 8;
-		var->green.length = 8;
-		var->blue.length = 8;
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-
-	/*
-	 * >= 16bpp displays have separate colour component bitfields
-	 * encoded in the pixel data.  Calculate their position from
-	 * the bitfield length defined above.
-	 */
-	if (ret == 0 && var->bits_per_pixel >= 16) {
-		bool bgr, rgb;
-
-		bgr = caps & CLCD_CAP_BGR && var->blue.offset == 0;
-		rgb = caps & CLCD_CAP_RGB && var->red.offset == 0;
-
-		if (!bgr && !rgb)
-			/*
-			 * The requested format was not possible, try just
-			 * our capabilities.  One of BGR or RGB must be
-			 * supported.
-			 */
-			bgr = caps & CLCD_CAP_BGR;
-
-		if (bgr) {
-			var->blue.offset = 0;
-			var->green.offset = var->blue.offset + var->blue.length;
-			var->red.offset = var->green.offset + var->green.length;
-		} else {
-			var->red.offset = 0;
-			var->green.offset = var->red.offset + var->red.length;
-			var->blue.offset = var->green.offset + var->green.length;
-		}
-	}
-
-	return ret;
-}
-
-static int clcdfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
-{
-	struct clcd_fb *fb = to_clcd(info);
-	int ret = -EINVAL;
-
-	if (fb->board->check)
-		ret = fb->board->check(fb, var);
-
-	if (ret == 0 &&
-	    var->xres_virtual * var->bits_per_pixel / 8 *
-	    var->yres_virtual > fb->fb.fix.smem_len)
-		ret = -EINVAL;
-
-	if (ret == 0)
-		ret = clcdfb_set_bitfields(fb, var);
-
-	return ret;
-}
-
-static int clcdfb_set_par(struct fb_info *info)
-{
-	struct clcd_fb *fb = to_clcd(info);
-	struct clcd_regs regs;
-
-	fb->fb.fix.line_length = fb->fb.var.xres_virtual *
-				 fb->fb.var.bits_per_pixel / 8;
-
-	if (fb->fb.var.bits_per_pixel <= 8)
-		fb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
-	else
-		fb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
-
-	fb->board->decode(fb, &regs);
-
-	clcdfb_disable(fb);
-
-	writel(regs.tim0, fb->regs + CLCD_TIM0);
-	writel(regs.tim1, fb->regs + CLCD_TIM1);
-	writel(regs.tim2, fb->regs + CLCD_TIM2);
-	writel(regs.tim3, fb->regs + CLCD_TIM3);
-
-	clcdfb_set_start(fb);
-
-	clk_set_rate(fb->clk, (1000000000 / regs.pixclock) * 1000);
-
-	fb->clcd_cntl = regs.cntl;
-
-	clcdfb_enable(fb, regs.cntl);
-
-#ifdef DEBUG
-	printk(KERN_INFO
-	       "CLCD: Registers set to\n"
-	       "  %08x %08x %08x %08x\n"
-	       "  %08x %08x %08x %08x\n",
-		readl(fb->regs + CLCD_TIM0), readl(fb->regs + CLCD_TIM1),
-		readl(fb->regs + CLCD_TIM2), readl(fb->regs + CLCD_TIM3),
-		readl(fb->regs + CLCD_UBAS), readl(fb->regs + CLCD_LBAS),
-		readl(fb->regs + fb->off_ienb), readl(fb->regs + fb->off_cntl));
-#endif
-
-	return 0;
-}
-
-static inline u32 convert_bitfield(int val, struct fb_bitfield *bf)
-{
-	unsigned int mask = (1 << bf->length) - 1;
-
-	return (val >> (16 - bf->length) & mask) << bf->offset;
-}
-
-/*
- *  Set a single color register. The values supplied have a 16 bit
- *  magnitude.  Return != 0 for invalid regno.
- */
-static int
-clcdfb_setcolreg(unsigned int regno, unsigned int red, unsigned int green,
-		 unsigned int blue, unsigned int transp, struct fb_info *info)
-{
-	struct clcd_fb *fb = to_clcd(info);
-
-	if (regno < 16)
-		fb->cmap[regno] = convert_bitfield(transp, &fb->fb.var.transp) |
-				  convert_bitfield(blue, &fb->fb.var.blue) |
-				  convert_bitfield(green, &fb->fb.var.green) |
-				  convert_bitfield(red, &fb->fb.var.red);
-
-	if (fb->fb.fix.visual == FB_VISUAL_PSEUDOCOLOR && regno < 256) {
-		int hw_reg = CLCD_PALETTE + ((regno * 2) & ~3);
-		u32 val, mask, newval;
-
-		newval  = (red >> 11)  & 0x001f;
-		newval |= (green >> 6) & 0x03e0;
-		newval |= (blue >> 1)  & 0x7c00;
-
-		/*
-		 * 3.2.11: if we're configured for big endian
-		 * byte order, the palette entries are swapped.
-		 */
-		if (fb->clcd_cntl & CNTL_BEBO)
-			regno ^= 1;
-
-		if (regno & 1) {
-			newval <<= 16;
-			mask = 0x0000ffff;
-		} else {
-			mask = 0xffff0000;
-		}
-
-		val = readl(fb->regs + hw_reg) & mask;
-		writel(val | newval, fb->regs + hw_reg);
-	}
-
-	return regno > 255;
-}
-
-/*
- *  Blank the screen if blank_mode != 0, else unblank. If blank == NULL
- *  then the caller blanks by setting the CLUT (Color Look Up Table) to all
- *  black. Return 0 if blanking succeeded, != 0 if un-/blanking failed due
- *  to e.g. a video mode which doesn't support it. Implements VESA suspend
- *  and powerdown modes on hardware that supports disabling hsync/vsync:
- *    blank_mode == 2: suspend vsync
- *    blank_mode == 3: suspend hsync
- *    blank_mode == 4: powerdown
- */
-static int clcdfb_blank(int blank_mode, struct fb_info *info)
-{
-	struct clcd_fb *fb = to_clcd(info);
-
-	if (blank_mode != 0) {
-		clcdfb_disable(fb);
-	} else {
-		clcdfb_enable(fb, fb->clcd_cntl);
-	}
-	return 0;
-}
-
-static int clcdfb_mmap(struct fb_info *info,
-		       struct vm_area_struct *vma)
-{
-	struct clcd_fb *fb = to_clcd(info);
-	unsigned long len, off = vma->vm_pgoff << PAGE_SHIFT;
-	int ret = -EINVAL;
-
-	len = info->fix.smem_len;
-
-	if (off <= len && vma->vm_end - vma->vm_start <= len - off &&
-	    fb->board->mmap)
-		ret = fb->board->mmap(fb, vma);
-
-	return ret;
-}
-
-static struct fb_ops clcdfb_ops = {
-	.owner		= THIS_MODULE,
-	.fb_check_var	= clcdfb_check_var,
-	.fb_set_par	= clcdfb_set_par,
-	.fb_setcolreg	= clcdfb_setcolreg,
-	.fb_blank	= clcdfb_blank,
-	.fb_fillrect	= cfb_fillrect,
-	.fb_copyarea	= cfb_copyarea,
-	.fb_imageblit	= cfb_imageblit,
-	.fb_mmap	= clcdfb_mmap,
-};
-
-static int clcdfb_register(struct clcd_fb *fb)
-{
-	int ret;
-
-	/*
-	 * ARM PL111 always has IENB at 0x1c; it's only PL110
-	 * which is reversed on some platforms.
-	 */
-	if (amba_manf(fb->dev) == 0x41 && amba_part(fb->dev) == 0x111) {
-		fb->off_ienb = CLCD_PL111_IENB;
-		fb->off_cntl = CLCD_PL111_CNTL;
-	} else {
-#ifdef CONFIG_ARCH_VERSATILE
-		fb->off_ienb = CLCD_PL111_IENB;
-		fb->off_cntl = CLCD_PL111_CNTL;
-#else
-		fb->off_ienb = CLCD_PL110_IENB;
-		fb->off_cntl = CLCD_PL110_CNTL;
-#endif
-	}
-
-	fb->clk = clk_get(&fb->dev->dev, NULL);
-	if (IS_ERR(fb->clk)) {
-		ret = PTR_ERR(fb->clk);
-		goto out;
-	}
-
-	ret = clk_prepare(fb->clk);
-	if (ret)
-		goto free_clk;
-
-	fb->fb.device		= &fb->dev->dev;
-
-	fb->fb.fix.mmio_start	= fb->dev->res.start;
-	fb->fb.fix.mmio_len	= resource_size(&fb->dev->res);
-
-	fb->regs = ioremap(fb->fb.fix.mmio_start, fb->fb.fix.mmio_len);
-	if (!fb->regs) {
-		printk(KERN_ERR "CLCD: unable to remap registers\n");
-		ret = -ENOMEM;
-		goto clk_unprep;
-	}
-
-	fb->fb.fbops		= &clcdfb_ops;
-	fb->fb.flags		= FBINFO_FLAG_DEFAULT;
-	fb->fb.pseudo_palette	= fb->cmap;
-
-	strncpy(fb->fb.fix.id, clcd_name, sizeof(fb->fb.fix.id));
-	fb->fb.fix.type		= FB_TYPE_PACKED_PIXELS;
-	fb->fb.fix.type_aux	= 0;
-	fb->fb.fix.xpanstep	= 0;
-	fb->fb.fix.ypanstep	= 0;
-	fb->fb.fix.ywrapstep	= 0;
-	fb->fb.fix.accel	= FB_ACCEL_NONE;
-
-	fb->fb.var.xres		= fb->panel->mode.xres;
-	fb->fb.var.yres		= fb->panel->mode.yres;
-	fb->fb.var.xres_virtual	= fb->panel->mode.xres;
-	fb->fb.var.yres_virtual	= fb->panel->mode.yres;
-	fb->fb.var.bits_per_pixel = fb->panel->bpp;
-	fb->fb.var.grayscale	= fb->panel->grayscale;
-	fb->fb.var.pixclock	= fb->panel->mode.pixclock;
-	fb->fb.var.left_margin	= fb->panel->mode.left_margin;
-	fb->fb.var.right_margin	= fb->panel->mode.right_margin;
-	fb->fb.var.upper_margin	= fb->panel->mode.upper_margin;
-	fb->fb.var.lower_margin	= fb->panel->mode.lower_margin;
-	fb->fb.var.hsync_len	= fb->panel->mode.hsync_len;
-	fb->fb.var.vsync_len	= fb->panel->mode.vsync_len;
-	fb->fb.var.sync		= fb->panel->mode.sync;
-	fb->fb.var.vmode	= fb->panel->mode.vmode;
-	fb->fb.var.activate	= FB_ACTIVATE_NOW;
-	fb->fb.var.nonstd	= 0;
-	fb->fb.var.height	= fb->panel->height;
-	fb->fb.var.width	= fb->panel->width;
-	fb->fb.var.accel_flags	= 0;
-
-	fb->fb.monspecs.hfmin	= 0;
-	fb->fb.monspecs.hfmax   = 100000;
-	fb->fb.monspecs.vfmin	= 0;
-	fb->fb.monspecs.vfmax	= 400;
-	fb->fb.monspecs.dclkmin = 1000000;
-	fb->fb.monspecs.dclkmax	= 100000000;
-
-	/*
-	 * Make sure that the bitfields are set appropriately.
-	 */
-	clcdfb_set_bitfields(fb, &fb->fb.var);
-
-	/*
-	 * Allocate colourmap.
-	 */
-	ret = fb_alloc_cmap(&fb->fb.cmap, 256, 0);
-	if (ret)
-		goto unmap;
-
-	/*
-	 * Ensure interrupts are disabled.
-	 */
-	writel(0, fb->regs + fb->off_ienb);
-
-	fb_set_var(&fb->fb, &fb->fb.var);
-
-	dev_info(&fb->dev->dev, "%s hardware, %s display\n",
-	         fb->board->name, fb->panel->mode.name);
-
-	ret = register_framebuffer(&fb->fb);
-	if (ret == 0)
-		goto out;
-
-	printk(KERN_ERR "CLCD: cannot register framebuffer (%d)\n", ret);
-
-	fb_dealloc_cmap(&fb->fb.cmap);
- unmap:
-	iounmap(fb->regs);
- clk_unprep:
-	clk_unprepare(fb->clk);
- free_clk:
-	clk_put(fb->clk);
- out:
-	return ret;
-}
-
-static int clcdfb_probe(struct amba_device *dev, const struct amba_id *id)
-{
-	struct clcd_board *board = dev_get_platdata(&dev->dev);
-	struct clcd_fb *fb;
-	int ret;
-
-	if (!board)
-		return -EINVAL;
-
-	ret = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));
-	if (ret)
-		goto out;
-
-	ret = amba_request_regions(dev, NULL);
-	if (ret) {
-		printk(KERN_ERR "CLCD: unable to reserve regs region\n");
-		goto out;
-	}
-
-	fb = kzalloc(sizeof(struct clcd_fb), GFP_KERNEL);
-	if (!fb) {
-		printk(KERN_INFO "CLCD: could not allocate new clcd_fb struct\n");
-		ret = -ENOMEM;
-		goto free_region;
-	}
-
-	fb->dev = dev;
-	fb->board = board;
-
-	dev_info(&fb->dev->dev, "PL%03x rev%u at 0x%08llx\n",
-		amba_part(dev), amba_rev(dev),
-		(unsigned long long)dev->res.start);
-
-	ret = fb->board->setup(fb);
-	if (ret)
-		goto free_fb;
-
-	ret = clcdfb_register(fb); 
-	if (ret == 0) {
-		amba_set_drvdata(dev, fb);
-		goto out;
-	}
-
-	fb->board->remove(fb);
- free_fb:
-	kfree(fb);
- free_region:
-	amba_release_regions(dev);
- out:
-	return ret;
-}
-
-static int clcdfb_remove(struct amba_device *dev)
-{
-	struct clcd_fb *fb = amba_get_drvdata(dev);
-
-	clcdfb_disable(fb);
-	unregister_framebuffer(&fb->fb);
-	if (fb->fb.cmap.len)
-		fb_dealloc_cmap(&fb->fb.cmap);
-	iounmap(fb->regs);
-	clk_unprepare(fb->clk);
-	clk_put(fb->clk);
-
-	fb->board->remove(fb);
-
-	kfree(fb);
-
-	amba_release_regions(dev);
-
-	return 0;
-}
-
-static struct amba_id clcdfb_id_table[] = {
-	{
-		.id	= 0x00041110,
-		.mask	= 0x000ffffe,
-	},
-	{ 0, 0 },
-};
-
-MODULE_DEVICE_TABLE(amba, clcdfb_id_table);
-
-static struct amba_driver clcd_driver = {
-	.drv 		= {
-		.name	= "clcd-pl11x",
-	},
-	.probe		= clcdfb_probe,
-	.remove		= clcdfb_remove,
-	.id_table	= clcdfb_id_table,
-};
-
-static int __init amba_clcdfb_init(void)
-{
-	if (fb_get_options("ambafb", NULL))
-		return -ENODEV;
-
-	return amba_driver_register(&clcd_driver);
-}
-
-module_init(amba_clcdfb_init);
-
-static void __exit amba_clcdfb_exit(void)
-{
-	amba_driver_unregister(&clcd_driver);
-}
-
-module_exit(amba_clcdfb_exit);
-
-MODULE_DESCRIPTION("ARM PrimeCell PL110 CLCD core driver");
-MODULE_LICENSE("GPL");