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, 509 deletions

diff --git a/drivers/video/xilinxfb.c b/drivers/video/xilinxfb.c
deleted file mode 100644
index 553cff2f3f4c..000000000000
--- a/drivers/video/xilinxfb.c
+++ /dev/null
@@ -1,509 +0,0 @@
-/*
- * Xilinx TFT frame buffer driver
- *
- * Author: MontaVista Software, Inc.
- *         source@mvista.com
- *
- * 2002-2007 (c) MontaVista Software, Inc.
- * 2007 (c) Secret Lab Technologies, Ltd.
- * 2009 (c) Xilinx Inc.
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2.  This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-/*
- * This driver was based on au1100fb.c by MontaVista rewritten for 2.6
- * by Embedded Alley Solutions <source@embeddedalley.com>, which in turn
- * was based on skeletonfb.c, Skeleton for a frame buffer device by
- * Geert Uytterhoeven.
- */
-
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/dma-mapping.h>
-#include <linux/of_device.h>
-#include <linux/of_platform.h>
-#include <linux/of_address.h>
-#include <linux/io.h>
-#include <linux/slab.h>
-
-#ifdef CONFIG_PPC_DCR
-#include <asm/dcr.h>
-#endif
-
-#define DRIVER_NAME		"xilinxfb"
-
-
-/*
- * Xilinx calls it "TFT LCD Controller" though it can also be used for
- * the VGA port on the Xilinx ML40x board. This is a hardware display
- * controller for a 640x480 resolution TFT or VGA screen.
- *
- * The interface to the framebuffer is nice and simple.  There are two
- * control registers.  The first tells the LCD interface where in memory
- * the frame buffer is (only the 11 most significant bits are used, so
- * don't start thinking about scrolling).  The second allows the LCD to
- * be turned on or off as well as rotated 180 degrees.
- *
- * In case of direct BUS access the second control register will be at
- * an offset of 4 as compared to the DCR access where the offset is 1
- * i.e. REG_CTRL. So this is taken care in the function
- * xilinx_fb_out32 where it left shifts the offset 2 times in case of
- * direct BUS access.
- */
-#define NUM_REGS	2
-#define REG_FB_ADDR	0
-#define REG_CTRL	1
-#define REG_CTRL_ENABLE	 0x0001
-#define REG_CTRL_ROTATE	 0x0002
-
-/*
- * The hardware only handles a single mode: 640x480 24 bit true
- * color. Each pixel gets a word (32 bits) of memory.  Within each word,
- * the 8 most significant bits are ignored, the next 8 bits are the red
- * level, the next 8 bits are the green level and the 8 least
- * significant bits are the blue level.  Each row of the LCD uses 1024
- * words, but only the first 640 pixels are displayed with the other 384
- * words being ignored.  There are 480 rows.
- */
-#define BYTES_PER_PIXEL	4
-#define BITS_PER_PIXEL	(BYTES_PER_PIXEL * 8)
-
-#define RED_SHIFT	16
-#define GREEN_SHIFT	8
-#define BLUE_SHIFT	0
-
-#define PALETTE_ENTRIES_NO	16	/* passed to fb_alloc_cmap() */
-
-/* ML300/403 reference design framebuffer driver platform data struct */
-struct xilinxfb_platform_data {
-	u32 rotate_screen;      /* Flag to rotate display 180 degrees */
-	u32 screen_height_mm;   /* Physical dimensions of screen in mm */
-	u32 screen_width_mm;
-	u32 xres, yres;         /* resolution of screen in pixels */
-	u32 xvirt, yvirt;       /* resolution of memory buffer */
-
-	/* Physical address of framebuffer memory; If non-zero, driver
-	* will use provided memory address instead of allocating one from
-	* the consistent pool. */
-	u32 fb_phys;
-};
-
-/*
- * Default xilinxfb configuration
- */
-static struct xilinxfb_platform_data xilinx_fb_default_pdata = {
-	.xres = 640,
-	.yres = 480,
-	.xvirt = 1024,
-	.yvirt = 480,
-};
-
-/*
- * Here are the default fb_fix_screeninfo and fb_var_screeninfo structures
- */
-static struct fb_fix_screeninfo xilinx_fb_fix = {
-	.id =		"Xilinx",
-	.type =		FB_TYPE_PACKED_PIXELS,
-	.visual =	FB_VISUAL_TRUECOLOR,
-	.accel =	FB_ACCEL_NONE
-};
-
-static struct fb_var_screeninfo xilinx_fb_var = {
-	.bits_per_pixel =	BITS_PER_PIXEL,
-
-	.red =		{ RED_SHIFT, 8, 0 },
-	.green =	{ GREEN_SHIFT, 8, 0 },
-	.blue =		{ BLUE_SHIFT, 8, 0 },
-	.transp =	{ 0, 0, 0 },
-
-	.activate =	FB_ACTIVATE_NOW
-};
-
-
-#define BUS_ACCESS_FLAG		0x1 /* 1 = BUS, 0 = DCR */
-#define LITTLE_ENDIAN_ACCESS	0x2 /* LITTLE ENDIAN IO functions */
-
-struct xilinxfb_drvdata {
-
-	struct fb_info	info;		/* FB driver info record */
-
-	phys_addr_t	regs_phys;	/* phys. address of the control
-						registers */
-	void __iomem	*regs;		/* virt. address of the control
-						registers */
-#ifdef CONFIG_PPC_DCR
-	dcr_host_t      dcr_host;
-	unsigned int    dcr_len;
-#endif
-	void		*fb_virt;	/* virt. address of the frame buffer */
-	dma_addr_t	fb_phys;	/* phys. address of the frame buffer */
-	int		fb_alloced;	/* Flag, was the fb memory alloced? */
-
-	u8 		flags;		/* features of the driver */
-
-	u32		reg_ctrl_default;
-
-	u32		pseudo_palette[PALETTE_ENTRIES_NO];
-					/* Fake palette of 16 colors */
-};
-
-#define to_xilinxfb_drvdata(_info) \
-	container_of(_info, struct xilinxfb_drvdata, info)
-
-/*
- * The XPS TFT Controller can be accessed through BUS or DCR interface.
- * To perform the read/write on the registers we need to check on
- * which bus its connected and call the appropriate write API.
- */
-static void xilinx_fb_out32(struct xilinxfb_drvdata *drvdata, u32 offset,
-				u32 val)
-{
-	if (drvdata->flags & BUS_ACCESS_FLAG) {
-		if (drvdata->flags & LITTLE_ENDIAN_ACCESS)
-			iowrite32(val, drvdata->regs + (offset << 2));
-		else
-			iowrite32be(val, drvdata->regs + (offset << 2));
-	}
-#ifdef CONFIG_PPC_DCR
-	else
-		dcr_write(drvdata->dcr_host, offset, val);
-#endif
-}
-
-static u32 xilinx_fb_in32(struct xilinxfb_drvdata *drvdata, u32 offset)
-{
-	if (drvdata->flags & BUS_ACCESS_FLAG) {
-		if (drvdata->flags & LITTLE_ENDIAN_ACCESS)
-			return ioread32(drvdata->regs + (offset << 2));
-		else
-			return ioread32be(drvdata->regs + (offset << 2));
-	}
-#ifdef CONFIG_PPC_DCR
-	else
-		return dcr_read(drvdata->dcr_host, offset);
-#endif
-	return 0;
-}
-
-static int
-xilinx_fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue,
-	unsigned transp, struct fb_info *fbi)
-{
-	u32 *palette = fbi->pseudo_palette;
-
-	if (regno >= PALETTE_ENTRIES_NO)
-		return -EINVAL;
-
-	if (fbi->var.grayscale) {
-		/* Convert color to grayscale.
-		 * grayscale = 0.30*R + 0.59*G + 0.11*B */
-		red = green = blue =
-			(red * 77 + green * 151 + blue * 28 + 127) >> 8;
-	}
-
-	/* fbi->fix.visual is always FB_VISUAL_TRUECOLOR */
-
-	/* We only handle 8 bits of each color. */
-	red >>= 8;
-	green >>= 8;
-	blue >>= 8;
-	palette[regno] = (red << RED_SHIFT) | (green << GREEN_SHIFT) |
-			 (blue << BLUE_SHIFT);
-
-	return 0;
-}
-
-static int
-xilinx_fb_blank(int blank_mode, struct fb_info *fbi)
-{
-	struct xilinxfb_drvdata *drvdata = to_xilinxfb_drvdata(fbi);
-
-	switch (blank_mode) {
-	case FB_BLANK_UNBLANK:
-		/* turn on panel */
-		xilinx_fb_out32(drvdata, REG_CTRL, drvdata->reg_ctrl_default);
-		break;
-
-	case FB_BLANK_NORMAL:
-	case FB_BLANK_VSYNC_SUSPEND:
-	case FB_BLANK_HSYNC_SUSPEND:
-	case FB_BLANK_POWERDOWN:
-		/* turn off panel */
-		xilinx_fb_out32(drvdata, REG_CTRL, 0);
-	default:
-		break;
-
-	}
-	return 0; /* success */
-}
-
-static struct fb_ops xilinxfb_ops =
-{
-	.owner			= THIS_MODULE,
-	.fb_setcolreg		= xilinx_fb_setcolreg,
-	.fb_blank		= xilinx_fb_blank,
-	.fb_fillrect		= cfb_fillrect,
-	.fb_copyarea		= cfb_copyarea,
-	.fb_imageblit		= cfb_imageblit,
-};
-
-/* ---------------------------------------------------------------------
- * Bus independent setup/teardown
- */
-
-static int xilinxfb_assign(struct platform_device *pdev,
-			   struct xilinxfb_drvdata *drvdata,
-			   struct xilinxfb_platform_data *pdata)
-{
-	int rc;
-	struct device *dev = &pdev->dev;
-	int fbsize = pdata->xvirt * pdata->yvirt * BYTES_PER_PIXEL;
-
-	if (drvdata->flags & BUS_ACCESS_FLAG) {
-		struct resource *res;
-
-		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-		drvdata->regs = devm_ioremap_resource(&pdev->dev, res);
-		if (IS_ERR(drvdata->regs))
-			return PTR_ERR(drvdata->regs);
-
-		drvdata->regs_phys = res->start;
-	}
-
-	/* Allocate the framebuffer memory */
-	if (pdata->fb_phys) {
-		drvdata->fb_phys = pdata->fb_phys;
-		drvdata->fb_virt = ioremap(pdata->fb_phys, fbsize);
-	} else {
-		drvdata->fb_alloced = 1;
-		drvdata->fb_virt = dma_alloc_coherent(dev, PAGE_ALIGN(fbsize),
-					&drvdata->fb_phys, GFP_KERNEL);
-	}
-
-	if (!drvdata->fb_virt) {
-		dev_err(dev, "Could not allocate frame buffer memory\n");
-		return -ENOMEM;
-	}
-
-	/* Clear (turn to black) the framebuffer */
-	memset_io((void __iomem *)drvdata->fb_virt, 0, fbsize);
-
-	/* Tell the hardware where the frame buffer is */
-	xilinx_fb_out32(drvdata, REG_FB_ADDR, drvdata->fb_phys);
-	rc = xilinx_fb_in32(drvdata, REG_FB_ADDR);
-	/* Endianess detection */
-	if (rc != drvdata->fb_phys) {
-		drvdata->flags |= LITTLE_ENDIAN_ACCESS;
-		xilinx_fb_out32(drvdata, REG_FB_ADDR, drvdata->fb_phys);
-	}
-
-	/* Turn on the display */
-	drvdata->reg_ctrl_default = REG_CTRL_ENABLE;
-	if (pdata->rotate_screen)
-		drvdata->reg_ctrl_default |= REG_CTRL_ROTATE;
-	xilinx_fb_out32(drvdata, REG_CTRL,
-					drvdata->reg_ctrl_default);
-
-	/* Fill struct fb_info */
-	drvdata->info.device = dev;
-	drvdata->info.screen_base = (void __iomem *)drvdata->fb_virt;
-	drvdata->info.fbops = &xilinxfb_ops;
-	drvdata->info.fix = xilinx_fb_fix;
-	drvdata->info.fix.smem_start = drvdata->fb_phys;
-	drvdata->info.fix.smem_len = fbsize;
-	drvdata->info.fix.line_length = pdata->xvirt * BYTES_PER_PIXEL;
-
-	drvdata->info.pseudo_palette = drvdata->pseudo_palette;
-	drvdata->info.flags = FBINFO_DEFAULT;
-	drvdata->info.var = xilinx_fb_var;
-	drvdata->info.var.height = pdata->screen_height_mm;
-	drvdata->info.var.width = pdata->screen_width_mm;
-	drvdata->info.var.xres = pdata->xres;
-	drvdata->info.var.yres = pdata->yres;
-	drvdata->info.var.xres_virtual = pdata->xvirt;
-	drvdata->info.var.yres_virtual = pdata->yvirt;
-
-	/* Allocate a colour map */
-	rc = fb_alloc_cmap(&drvdata->info.cmap, PALETTE_ENTRIES_NO, 0);
-	if (rc) {
-		dev_err(dev, "Fail to allocate colormap (%d entries)\n",
-			PALETTE_ENTRIES_NO);
-		goto err_cmap;
-	}
-
-	/* Register new frame buffer */
-	rc = register_framebuffer(&drvdata->info);
-	if (rc) {
-		dev_err(dev, "Could not register frame buffer\n");
-		goto err_regfb;
-	}
-
-	if (drvdata->flags & BUS_ACCESS_FLAG) {
-		/* Put a banner in the log (for DEBUG) */
-		dev_dbg(dev, "regs: phys=%pa, virt=%p\n",
-			&drvdata->regs_phys, drvdata->regs);
-	}
-	/* Put a banner in the log (for DEBUG) */
-	dev_dbg(dev, "fb: phys=%llx, virt=%p, size=%x\n",
-		(unsigned long long)drvdata->fb_phys, drvdata->fb_virt, fbsize);
-
-	return 0;	/* success */
-
-err_regfb:
-	fb_dealloc_cmap(&drvdata->info.cmap);
-
-err_cmap:
-	if (drvdata->fb_alloced)
-		dma_free_coherent(dev, PAGE_ALIGN(fbsize), drvdata->fb_virt,
-			drvdata->fb_phys);
-	else
-		iounmap(drvdata->fb_virt);
-
-	/* Turn off the display */
-	xilinx_fb_out32(drvdata, REG_CTRL, 0);
-
-	return rc;
-}
-
-static int xilinxfb_release(struct device *dev)
-{
-	struct xilinxfb_drvdata *drvdata = dev_get_drvdata(dev);
-
-#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
-	xilinx_fb_blank(VESA_POWERDOWN, &drvdata->info);
-#endif
-
-	unregister_framebuffer(&drvdata->info);
-
-	fb_dealloc_cmap(&drvdata->info.cmap);
-
-	if (drvdata->fb_alloced)
-		dma_free_coherent(dev, PAGE_ALIGN(drvdata->info.fix.smem_len),
-				  drvdata->fb_virt, drvdata->fb_phys);
-	else
-		iounmap(drvdata->fb_virt);
-
-	/* Turn off the display */
-	xilinx_fb_out32(drvdata, REG_CTRL, 0);
-
-#ifdef CONFIG_PPC_DCR
-	/* Release the resources, as allocated based on interface */
-	if (!(drvdata->flags & BUS_ACCESS_FLAG))
-		dcr_unmap(drvdata->dcr_host, drvdata->dcr_len);
-#endif
-
-	return 0;
-}
-
-/* ---------------------------------------------------------------------
- * OF bus binding
- */
-
-static int xilinxfb_of_probe(struct platform_device *pdev)
-{
-	const u32 *prop;
-	u32 tft_access = 0;
-	struct xilinxfb_platform_data pdata;
-	int size;
-	struct xilinxfb_drvdata *drvdata;
-
-	/* Copy with the default pdata (not a ptr reference!) */
-	pdata = xilinx_fb_default_pdata;
-
-	/* Allocate the driver data region */
-	drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
-	if (!drvdata)
-		return -ENOMEM;
-
-	/*
-	 * To check whether the core is connected directly to DCR or BUS
-	 * interface and initialize the tft_access accordingly.
-	 */
-	of_property_read_u32(pdev->dev.of_node, "xlnx,dcr-splb-slave-if",
-			     &tft_access);
-
-	/*
-	 * Fill the resource structure if its direct BUS interface
-	 * otherwise fill the dcr_host structure.
-	 */
-	if (tft_access) {
-		drvdata->flags |= BUS_ACCESS_FLAG;
-	}
-#ifdef CONFIG_PPC_DCR
-	else {
-		int start;
-		start = dcr_resource_start(pdev->dev.of_node, 0);
-		drvdata->dcr_len = dcr_resource_len(pdev->dev.of_node, 0);
-		drvdata->dcr_host = dcr_map(pdev->dev.of_node, start, drvdata->dcr_len);
-		if (!DCR_MAP_OK(drvdata->dcr_host)) {
-			dev_err(&pdev->dev, "invalid DCR address\n");
-			return -ENODEV;
-		}
-	}
-#endif
-
-	prop = of_get_property(pdev->dev.of_node, "phys-size", &size);
-	if ((prop) && (size >= sizeof(u32)*2)) {
-		pdata.screen_width_mm = prop[0];
-		pdata.screen_height_mm = prop[1];
-	}
-
-	prop = of_get_property(pdev->dev.of_node, "resolution", &size);
-	if ((prop) && (size >= sizeof(u32)*2)) {
-		pdata.xres = prop[0];
-		pdata.yres = prop[1];
-	}
-
-	prop = of_get_property(pdev->dev.of_node, "virtual-resolution", &size);
-	if ((prop) && (size >= sizeof(u32)*2)) {
-		pdata.xvirt = prop[0];
-		pdata.yvirt = prop[1];
-	}
-
-	if (of_find_property(pdev->dev.of_node, "rotate-display", NULL))
-		pdata.rotate_screen = 1;
-
-	dev_set_drvdata(&pdev->dev, drvdata);
-	return xilinxfb_assign(pdev, drvdata, &pdata);
-}
-
-static int xilinxfb_of_remove(struct platform_device *op)
-{
-	return xilinxfb_release(&op->dev);
-}
-
-/* Match table for of_platform binding */
-static struct of_device_id xilinxfb_of_match[] = {
-	{ .compatible = "xlnx,xps-tft-1.00.a", },
-	{ .compatible = "xlnx,xps-tft-2.00.a", },
-	{ .compatible = "xlnx,xps-tft-2.01.a", },
-	{ .compatible = "xlnx,plb-tft-cntlr-ref-1.00.a", },
-	{ .compatible = "xlnx,plb-dvi-cntlr-ref-1.00.c", },
-	{},
-};
-MODULE_DEVICE_TABLE(of, xilinxfb_of_match);
-
-static struct platform_driver xilinxfb_of_driver = {
-	.probe = xilinxfb_of_probe,
-	.remove = xilinxfb_of_remove,
-	.driver = {
-		.name = DRIVER_NAME,
-		.owner = THIS_MODULE,
-		.of_match_table = xilinxfb_of_match,
-	},
-};
-
-module_platform_driver(xilinxfb_of_driver);
-
-MODULE_AUTHOR("MontaVista Software, Inc. <source@mvista.com>");
-MODULE_DESCRIPTION("Xilinx TFT frame buffer driver");
-MODULE_LICENSE("GPL");