[PATCH] video: fbdev: remove dead igafb driver

[Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>]

igafb driver hasn't compiled since at least kernel v2.6.34 as
commit 6016a363f6b5 ("of: unify phandle name in struct device_node")
missed updating igafb.c to use dp->phandle instead of dp->node.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
 drivers/video/fbdev/Kconfig  |   10 
 drivers/video/fbdev/Makefile |    1 
 drivers/video/fbdev/igafb.c  |  579 -------------------------------------------
 include/video/iga.h          |   24 -
 4 files changed, 614 deletions(-)

Index: b/drivers/video/fbdev/Kconfig
===================================================================
--- a/drivers/video/fbdev/Kconfig	2017-10-18 14:35:21.927448311 +0200
+++ b/drivers/video/fbdev/Kconfig	2017-10-18 14:39:19.455445309 +0200
@@ -905,16 +905,6 @@ config FB_LEO
 	  This is the frame buffer device driver for the SBUS-based Sun ZX
 	  (leo) frame buffer cards.
 
-config FB_IGA
-	bool "IGA 168x display support"
-	depends on (FB = y) && SPARC32
-	select FB_CFB_FILLRECT
-	select FB_CFB_COPYAREA
-	select FB_CFB_IMAGEBLIT
-	help
-	  This is the framebuffer device for the INTERGRAPHICS 1680 and
-	  successor frame buffer cards.
-
 config FB_XVR500
 	bool "Sun XVR-500 3DLABS Wildcat support"
 	depends on (FB = y) && PCI && SPARC64
Index: b/drivers/video/fbdev/Makefile
===================================================================
--- a/drivers/video/fbdev/Makefile	2017-10-18 14:35:21.927448311 +0200
+++ b/drivers/video/fbdev/Makefile	2017-10-18 14:39:30.555445169 +0200
@@ -64,7 +64,6 @@ obj-$(CONFIG_FB_HGA)              += hga
 obj-$(CONFIG_FB_XVR500)           += sunxvr500.o
 obj-$(CONFIG_FB_XVR2500)          += sunxvr2500.o
 obj-$(CONFIG_FB_XVR1000)          += sunxvr1000.o
-obj-$(CONFIG_FB_IGA)              += igafb.o
 obj-$(CONFIG_FB_APOLLO)           += dnfb.o
 obj-$(CONFIG_FB_Q40)              += q40fb.o
 obj-$(CONFIG_FB_TGA)              += tgafb.o
Index: b/drivers/video/fbdev/igafb.c
===================================================================
--- a/drivers/video/fbdev/igafb.c	2017-10-18 14:35:22.007448310 +0200
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,579 +0,0 @@
-/*
- *  linux/drivers/video/igafb.c -- Frame buffer device for IGA 1682
- *
- *      Copyright (C) 1998  Vladimir Roganov and Gleb Raiko
- *
- *  This driver is partly based on the Frame buffer device for ATI Mach64
- *  and partially on VESA-related code.
- *
- *      Copyright (C) 1997-1998  Geert Uytterhoeven
- *      Copyright (C) 1998  Bernd Harries
- *      Copyright (C) 1998  Eddie C. Dost  (ecd@skynet.be)
- *
- *  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.
- */
-
-/******************************************************************************
-
-  TODO:
-       Despite of IGA Card has advanced graphic acceleration, 
-       initial version is almost dummy and does not support it.
-       Support for video modes and acceleration must be added
-       together with accelerated X-Windows driver implementation.
-
-       Most important thing at this moment is that we have working
-       JavaEngine1  console & X  with new console interface.
-
-******************************************************************************/
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/nvram.h>
-
-#include <asm/io.h>
-
-#ifdef CONFIG_SPARC
-#include <asm/prom.h>
-#include <asm/pcic.h>
-#endif
-
-#include <video/iga.h>
-
-struct pci_mmap_map {
-    unsigned long voff;
-    unsigned long poff;
-    unsigned long size;
-    unsigned long prot_flag;
-    unsigned long prot_mask;
-};
-
-struct iga_par {
-	struct pci_mmap_map *mmap_map;
-	unsigned long frame_buffer_phys;
-	unsigned long io_base;
-};
-
-struct fb_info fb_info;
-
-struct fb_fix_screeninfo igafb_fix __initdata = {
-        .id		= "IGA 1682",
-	.type		= FB_TYPE_PACKED_PIXELS,
-	.mmio_len 	= 1000
-};
-
-struct fb_var_screeninfo default_var = {
-	/* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
-	.xres		= 640,
-	.yres		= 480,
-	.xres_virtual	= 640,
-	.yres_virtual	= 480,
-	.bits_per_pixel	= 8,
-	.red		= {0, 8, 0 },
-	.green		= {0, 8, 0 },
-	.blue		= {0, 8, 0 },
-	.height		= -1,
-	.width		= -1,
-	.accel_flags	= FB_ACCEL_NONE,
-	.pixclock	= 39722,
-	.left_margin	= 48,
-	.right_margin	= 16,
-	.upper_margin	= 33,
-	.lower_margin	= 10,
-	.hsync_len	= 96,
-	.vsync_len	= 2,
-	.vmode		= FB_VMODE_NONINTERLACED
-};
-
-#ifdef CONFIG_SPARC
-struct fb_var_screeninfo default_var_1024x768 __initdata = {
-	/* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
-	.xres		= 1024,
-	.yres		= 768,
-	.xres_virtual	= 1024,
-	.yres_virtual	= 768,
-	.bits_per_pixel	= 8,
-	.red		= {0, 8, 0 },
-	.green		= {0, 8, 0 },
-	.blue		= {0, 8, 0 },
-	.height		= -1,
-	.width		= -1,
-	.accel_flags	= FB_ACCEL_NONE,
-	.pixclock	= 12699,
-	.left_margin	= 176,
-	.right_margin	= 16,
-	.upper_margin	= 28,
-	.lower_margin	= 1,
-	.hsync_len	= 96,
-	.vsync_len	= 3,
-	.vmode		= FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-};
-
-struct fb_var_screeninfo default_var_1152x900 __initdata = {
-	/* 1152x900, 76 Hz, Non-Interlaced (110.0 MHz dotclock) */
-	.xres		= 1152,
-	.yres		= 900,
-	.xres_virtual	= 1152,
-	.yres_virtual	= 900,
-	.bits_per_pixel	= 8,
-	.red		= { 0, 8, 0 },
-	.green		= { 0, 8, 0 },
-	.blue		= { 0, 8, 0 },
-	.height		= -1,
-	.width		= -1,
-	.accel_flags	= FB_ACCEL_NONE,
-	.pixclock	= 9091,
-	.left_margin	= 234,
-	.right_margin	= 24,
-	.upper_margin	= 34,
-	.lower_margin	= 3,
-	.hsync_len	= 100,
-	.vsync_len	= 3,
-	.vmode		= FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-};
-
-struct fb_var_screeninfo default_var_1280x1024 __initdata = {
-	/* 1280x1024, 75 Hz, Non-Interlaced (135.00 MHz dotclock) */
-	.xres		= 1280,
-	.yres		= 1024,
-	.xres_virtual	= 1280,
-	.yres_virtual	= 1024,
-	.bits_per_pixel	= 8,
-	.red		= {0, 8, 0 }, 
-	.green		= {0, 8, 0 },
-	.blue		= {0, 8, 0 },
-	.height		= -1,
-	.width		= -1,
-	.accel_flags	= 0,
-	.pixclock	= 7408,
-	.left_margin	= 248,
-	.right_margin	= 16,
-	.upper_margin	= 38,
-	.lower_margin	= 1,
-	.hsync_len	= 144,
-	.vsync_len	= 3,
-	.vmode		= FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-};
-
-/*
- *   Memory-mapped I/O functions for Sparc PCI
- *
- * On sparc we happen to access I/O with memory mapped functions too.
- */ 
-#define pci_inb(par, reg)        readb(par->io_base+(reg))
-#define pci_outb(par, val, reg)  writeb(val, par->io_base+(reg))
-
-static inline unsigned int iga_inb(struct iga_par *par, unsigned int reg,
-				   unsigned int idx)
-{
-        pci_outb(par, idx, reg);
-        return pci_inb(par, reg + 1);
-}
-
-static inline void iga_outb(struct iga_par *par, unsigned char val,
-			    unsigned int reg, unsigned int idx )
-{
-        pci_outb(par, idx, reg);
-        pci_outb(par, val, reg+1);
-}
-
-#endif /* CONFIG_SPARC */
-
-/*
- *  Very important functionality for the JavaEngine1 computer:
- *  make screen border black (usign special IGA registers) 
- */
-static void iga_blank_border(struct iga_par *par)
-{
-        int i;
-#if 0
-	/*
-	 * PROM does this for us, so keep this code as a reminder
-	 * about required read from 0x3DA and writing of 0x20 in the end.
-	 */
-	(void) pci_inb(par, 0x3DA);		/* required for every access */
-	pci_outb(par, IGA_IDX_VGA_OVERSCAN, IGA_ATTR_CTL);
-	(void) pci_inb(par, IGA_ATTR_CTL+1);
-	pci_outb(par, 0x38, IGA_ATTR_CTL);
-	pci_outb(par, 0x20, IGA_ATTR_CTL);	/* re-enable visual */
-#endif
-	/*
-	 * This does not work as it was designed because the overscan
-	 * color is looked up in the palette. Therefore, under X11
-	 * overscan changes color.
-	 */
-	for (i=0; i < 3; i++)
-		iga_outb(par, 0, IGA_EXT_CNTRL, IGA_IDX_OVERSCAN_COLOR + i);
-}
-
-#ifdef CONFIG_SPARC
-static int igafb_mmap(struct fb_info *info,
-		      struct vm_area_struct *vma)
-{
-	struct iga_par *par = (struct iga_par *)info->par;
-	unsigned int size, page, map_size = 0;
-	unsigned long map_offset = 0;
-	int i;
-
-	if (!par->mmap_map)
-		return -ENXIO;
-
-	size = vma->vm_end - vma->vm_start;
-
-	/* Each page, see which map applies */
-	for (page = 0; page < size; ) {
-		map_size = 0;
-		for (i = 0; par->mmap_map[i].size; i++) {
-			unsigned long start = par->mmap_map[i].voff;
-			unsigned long end = start + par->mmap_map[i].size;
-			unsigned long offset = (vma->vm_pgoff << PAGE_SHIFT) + page;
-
-			if (start > offset)
-				continue;
-			if (offset >= end)
-				continue;
-
-			map_size = par->mmap_map[i].size - (offset - start);
-			map_offset = par->mmap_map[i].poff + (offset - start);
-			break;
-		}
-		if (!map_size) {
-			page += PAGE_SIZE;
-			continue;
-		}
-		if (page + map_size > size)
-			map_size = size - page;
-
-		pgprot_val(vma->vm_page_prot) &= ~(par->mmap_map[i].prot_mask);
-		pgprot_val(vma->vm_page_prot) |= par->mmap_map[i].prot_flag;
-
-		if (remap_pfn_range(vma, vma->vm_start + page,
-			map_offset >> PAGE_SHIFT, map_size, vma->vm_page_prot))
-			return -EAGAIN;
-
-		page += map_size;
-	}
-
-	if (!map_size)
-		return -EINVAL;
-
-	vma->vm_flags |= VM_IO;
-	return 0;
-}
-#endif /* CONFIG_SPARC */
-
-static int igafb_setcolreg(unsigned regno, unsigned red, unsigned green,
-                           unsigned blue, unsigned transp,
-                           struct fb_info *info)
-{
-        /*
-         *  Set a single color register. The values supplied are
-         *  already rounded down to the hardware's capabilities
-         *  (according to the entries in the `var' structure). Return
-         *  != 0 for invalid regno.
-         */
-	struct iga_par *par = (struct iga_par *)info->par;
-
-        if (regno >= info->cmap.len)
-                return 1;
-
-	pci_outb(par, regno, DAC_W_INDEX);
-	pci_outb(par, red,   DAC_DATA);
-	pci_outb(par, green, DAC_DATA);
-	pci_outb(par, blue,  DAC_DATA);
-
-	if (regno < 16) {
-		switch (info->var.bits_per_pixel) {
-		case 16:
-			((u16*)(info->pseudo_palette))[regno] = 
-				(regno << 10) | (regno << 5) | regno;
-			break;
-		case 24:
-			((u32*)(info->pseudo_palette))[regno] = 
-				(regno << 16) | (regno << 8) | regno;
-		break;
-		case 32:
-			{ int i;
-			i = (regno << 8) | regno;
-			((u32*)(info->pseudo_palette))[regno] = (i << 16) | i;
-			}
-			break;
-		}
-	}
-	return 0;
-}
-
-/*
- * Framebuffer option structure
- */
-static struct fb_ops igafb_ops = {
-	.owner 		= THIS_MODULE,
-	.fb_setcolreg 	= igafb_setcolreg,
-	.fb_fillrect	= cfb_fillrect,
-	.fb_copyarea	= cfb_copyarea,
-	.fb_imageblit	= cfb_imageblit,
-#ifdef CONFIG_SPARC
-	.fb_mmap 	= igafb_mmap,
-#endif
-};
-
-static int __init iga_init(struct fb_info *info, struct iga_par *par)
-{
-        char vramsz = iga_inb(par, IGA_EXT_CNTRL, IGA_IDX_EXT_BUS_CNTL) 
-		                                         & MEM_SIZE_ALIAS;
-	int video_cmap_len;
-
-        switch (vramsz) {
-        case MEM_SIZE_1M:
-                info->fix.smem_len = 0x100000;
-                break;
-        case MEM_SIZE_2M:
-                info->fix.smem_len = 0x200000;
-                break;
-        case MEM_SIZE_4M:
-        case MEM_SIZE_RESERVED:
-                info->fix.smem_len = 0x400000;
-                break;
-        }
-
-        if (info->var.bits_per_pixel > 8) 
-                video_cmap_len = 16;
-        else 
-                video_cmap_len = 256;
-
-	info->fbops = &igafb_ops;
-	info->flags = FBINFO_DEFAULT;
-
-	fb_alloc_cmap(&info->cmap, video_cmap_len, 0);
-
-	if (register_framebuffer(info) < 0)
-		return 0;
-
-	fb_info(info, "%s frame buffer device at 0x%08lx [%dMB VRAM]\n",
-		info->fix.id, par->frame_buffer_phys, info->fix.smem_len >> 20);
-
-	iga_blank_border(par); 
-	return 1;
-}
-
-static int __init igafb_init(void)
-{
-        struct fb_info *info;
-        struct pci_dev *pdev;
-        struct iga_par *par;
-	unsigned long addr;
-	int size, iga2000 = 0;
-
-	if (fb_get_options("igafb", NULL))
-		return -ENODEV;
-
-        pdev = pci_get_device(PCI_VENDOR_ID_INTERG,
-                               PCI_DEVICE_ID_INTERG_1682, 0);
-	if (pdev == NULL) {
-		/*
-		 * XXX We tried to use cyber2000fb.c for IGS 2000.
-		 * But it does not initialize the chip in JavaStation-E, alas.
-		 */
-        	pdev = pci_get_device(PCI_VENDOR_ID_INTERG, 0x2000, 0);
-        	if(pdev == NULL) {
-        	        return -ENXIO;
-		}
-		iga2000 = 1;
-	}
-	/* We leak a reference here but as it cannot be unloaded this is
-	   fine. If you write unload code remember to free it in unload */
-	
-	size = sizeof(struct iga_par) + sizeof(u32)*16;
-
-	info = framebuffer_alloc(size, &pdev->dev);
-        if (!info) {
-                printk("igafb_init: can't alloc fb_info\n");
-		 pci_dev_put(pdev);
-                return -ENOMEM;
-        }
-
-	par = info->par;
-
-	if ((addr = pdev->resource[0].start) == 0) {
-                printk("igafb_init: no memory start\n");
-		kfree(info);
-		pci_dev_put(pdev);
-		return -ENXIO;
-	}
-
-	if ((info->screen_base = ioremap(addr, 1024*1024*2)) == 0) {
-                printk("igafb_init: can't remap %lx[2M]\n", addr);
-		kfree(info);
-		pci_dev_put(pdev);
-		return -ENXIO;
-	}
-
-	par->frame_buffer_phys = addr & PCI_BASE_ADDRESS_MEM_MASK;
-
-#ifdef CONFIG_SPARC
-	/*
-	 * The following is sparc specific and this is why:
-	 *
-	 * IGS2000 has its I/O memory mapped and we want
-	 * to generate memory cycles on PCI, e.g. do ioremap(),
-	 * then readb/writeb() as in Documentation/io-mapping.txt.
-	 *
-	 * IGS1682 is more traditional, it responds to PCI I/O
-	 * cycles, so we want to access it with inb()/outb().
-	 *
-	 * On sparc, PCIC converts CPU memory access within
-	 * phys window 0x3000xxxx into PCI I/O cycles. Therefore
-	 * we may use readb/writeb to access them with IGS1682.
-	 *
-	 * We do not take io_base_phys from resource[n].start
-	 * on IGS1682 because that chip is BROKEN. It does not
-	 * have a base register for I/O. We just "know" what its
-	 * I/O addresses are.
-	 */
-	if (iga2000) {
-		igafb_fix.mmio_start = par->frame_buffer_phys | 0x00800000;
-	} else {
-		igafb_fix.mmio_start = 0x30000000;	/* XXX */
-	}
-	if ((par->io_base = (int) ioremap(igafb_fix.mmio_start, igafb_fix.smem_len)) == 0) {
-                printk("igafb_init: can't remap %lx[4K]\n", igafb_fix.mmio_start);
-		iounmap((void *)info->screen_base);
-		kfree(info);
-		pci_dev_put(pdev);
-		return -ENXIO;
-	}
-
-	/*
-	 * Figure mmap addresses from PCI config space.
-	 * We need two regions: for video memory and for I/O ports.
-	 * Later one can add region for video coprocessor registers.
-	 * However, mmap routine loops until size != 0, so we put
-	 * one additional region with size == 0. 
-	 */
-
-	par->mmap_map = kzalloc(4 * sizeof(*par->mmap_map), GFP_ATOMIC);
-	if (!par->mmap_map) {
-		printk("igafb_init: can't alloc mmap_map\n");
-		iounmap((void *)par->io_base);
-		iounmap(info->screen_base);
-		kfree(info);
-		pci_dev_put(pdev);
-		return -ENOMEM;
-	}
-
-	/*
-	 * Set default vmode and cmode from PROM properties.
-	 */
-	{
-		struct device_node *dp = pci_device_to_OF_node(pdev);
-                int node = dp->node;
-                int width = prom_getintdefault(node, "width", 1024);
-                int height = prom_getintdefault(node, "height", 768);
-                int depth = prom_getintdefault(node, "depth", 8);
-                switch (width) {
-                    case 1024:
-                        if (height == 768)
-                            default_var = default_var_1024x768;
-                        break;
-                    case 1152:
-                        if (height == 900)
-                            default_var = default_var_1152x900;
-                        break;
-                    case 1280:
-                        if (height == 1024)
-                            default_var = default_var_1280x1024;
-                        break;
-                    default:
-                        break;
-                }
-
-                switch (depth) {
-                    case 8:
-                        default_var.bits_per_pixel = 8;
-                        break;
-                    case 16:
-                        default_var.bits_per_pixel = 16;
-                        break;
-                    case 24:
-                        default_var.bits_per_pixel = 24;
-                        break;
-                    case 32:
-                        default_var.bits_per_pixel = 32;
-                        break;
-                    default:
-                        break;
-                }
-            }
-
-#endif
-	igafb_fix.smem_start = (unsigned long) info->screen_base;
-	igafb_fix.line_length = default_var.xres*(default_var.bits_per_pixel/8);
-	igafb_fix.visual = default_var.bits_per_pixel <= 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
-
-	info->var = default_var;
-	info->fix = igafb_fix;
-	info->pseudo_palette = (void *)(par + 1);
-
-	if (!iga_init(info, par)) {
-		iounmap((void *)par->io_base);
-		iounmap(info->screen_base);
-		kfree(par->mmap_map);
-		kfree(info);
-		return -ENODEV;
-        }
-
-#ifdef CONFIG_SPARC
-	    /*
-	     * Add /dev/fb mmap values.
-	     */
-	    
-	    /* First region is for video memory */
-	    par->mmap_map[0].voff = 0x0;  
-	    par->mmap_map[0].poff = par->frame_buffer_phys & PAGE_MASK;
-	    par->mmap_map[0].size = info->fix.smem_len & PAGE_MASK;
-	    par->mmap_map[0].prot_mask = SRMMU_CACHE;
-	    par->mmap_map[0].prot_flag = SRMMU_WRITE;
-
-	    /* Second region is for I/O ports */
-	    par->mmap_map[1].voff = par->frame_buffer_phys & PAGE_MASK;
-	    par->mmap_map[1].poff = info->fix.smem_start & PAGE_MASK;
-	    par->mmap_map[1].size = PAGE_SIZE * 2; /* X wants 2 pages */
-	    par->mmap_map[1].prot_mask = SRMMU_CACHE;
-	    par->mmap_map[1].prot_flag = SRMMU_WRITE;
-#endif /* CONFIG_SPARC */
-
-	return 0;
-}
-
-static int __init igafb_setup(char *options)
-{
-    char *this_opt;
-
-    if (!options || !*options)
-        return 0;
-
-    while ((this_opt = strsep(&options, ",")) != NULL) {
-    }
-    return 0;
-}
-
-module_init(igafb_init);
-MODULE_LICENSE("GPL");
-static struct pci_device_id igafb_pci_tbl[] = {
-	{ PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_1682,
-	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{ }
-};
-
-MODULE_DEVICE_TABLE(pci, igafb_pci_tbl);
Index: b/include/video/iga.h
===================================================================
--- a/include/video/iga.h	2017-10-02 15:08:27.654662470 +0200
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,24 +0,0 @@
-/* $Id: iga.h,v 1.2 1999/09/11 22:56:31 zaitcev Exp $
- * iga1682.h: Sparc/PCI iga1682 driver constants etc.
- *
- * Copyleft 1998 V. Roganov and G. Raiko
- */
-
-#ifndef _IGA1682_H
-#define _IGA1682_H 1
-
-#define IGA_ATTR_CTL			0x3C0
-#define   IGA_IDX_VGA_OVERSCAN		0x11
-#define DAC_W_INDEX                     0x03C8
-#define DAC_DATA                        0x03C9
-#define IGA_EXT_CNTRL                   0x3CE
-#define   IGA_IDX_EXT_BUS_CNTL          0x30
-#define     MEM_SIZE_ALIAS              0x3
-#define     MEM_SIZE_1M                 0x0
-#define     MEM_SIZE_2M                 0x1
-#define     MEM_SIZE_4M                 0x2
-#define     MEM_SIZE_RESERVED           0x3
-#define   IGA_IDX_OVERSCAN_COLOR        0x58
-#define   IGA_IDX_EXT_MEM_2             0x72
-
-#endif /* !(_IGA1682_H) */