From 50312ce9dd794eef3df9e64194ba95ca730d82c8 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 29 Jun 2006 14:35:52 -0700 Subject: [SPARC]: Convert all FB SBUS drivers to of_driver framework. Signed-off-by: David S. Miller --- drivers/video/bw2.c | 213 +++++++++++++++++++++++----------------------------- 1 file changed, 96 insertions(+), 117 deletions(-) (limited to 'drivers/video/bw2.c') diff --git a/drivers/video/bw2.c b/drivers/video/bw2.c index 6577fdfdfc16..c66e3d52cbf3 100644 --- a/drivers/video/bw2.c +++ b/drivers/video/bw2.c @@ -1,6 +1,6 @@ /* bw2.c: BWTWO frame buffer driver * - * Copyright (C) 2003 David S. Miller (davem@redhat.com) + * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net) * Copyright (C) 1996,1998 Jakub Jelinek (jj@ultra.linux.cz) * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) @@ -19,14 +19,11 @@ #include #include -#include #include +#include +#include #include -#ifdef CONFIG_SPARC32 -#include -#endif - #include "sbuslib.h" /* @@ -59,30 +56,30 @@ static struct fb_ops bw2_ops = { #define BWTWO_REGISTER_OFFSET 0x400000 struct bt_regs { - volatile u32 addr; - volatile u32 color_map; - volatile u32 control; - volatile u32 cursor; + u32 addr; + u32 color_map; + u32 control; + u32 cursor; }; struct bw2_regs { struct bt_regs cmap; - volatile u8 control; - volatile u8 status; - volatile u8 cursor_start; - volatile u8 cursor_end; - volatile u8 h_blank_start; - volatile u8 h_blank_end; - volatile u8 h_sync_start; - volatile u8 h_sync_end; - volatile u8 comp_sync_end; - volatile u8 v_blank_start_high; - volatile u8 v_blank_start_low; - volatile u8 v_blank_end; - volatile u8 v_sync_start; - volatile u8 v_sync_end; - volatile u8 xfer_holdoff_start; - volatile u8 xfer_holdoff_end; + u8 control; + u8 status; + u8 cursor_start; + u8 cursor_end; + u8 h_blank_start; + u8 h_blank_end; + u8 h_sync_start; + u8 h_sync_end; + u8 comp_sync_end; + u8 v_blank_start_high; + u8 v_blank_start_low; + u8 v_blank_end; + u8 v_sync_start; + u8 v_sync_end; + u8 xfer_holdoff_start; + u8 xfer_holdoff_end; }; /* Status Register Constants */ @@ -117,9 +114,8 @@ struct bw2_par { #define BW2_FLAG_BLANKED 0x00000001 unsigned long physbase; + unsigned long which_io; unsigned long fbsize; - - struct sbus_dev *sdev; }; /** @@ -174,9 +170,7 @@ static int bw2_mmap(struct fb_info *info, struct vm_area_struct *vma) return sbusfb_mmap_helper(bw2_mmap_map, par->physbase, par->fbsize, - (par->sdev ? - par->sdev->reg_addrs[0].which_io : - 0), + par->which_io, vma); } @@ -288,139 +282,124 @@ static void bw2_do_default_mode(struct bw2_par *par, struct fb_info *info, struct all_info { struct fb_info info; struct bw2_par par; - struct list_head list; }; -static LIST_HEAD(bw2_list); -static void bw2_init_one(struct sbus_dev *sdev) +static int __devinit bw2_init_one(struct of_device *op) { + struct device_node *dp = op->node; struct all_info *all; - struct resource *resp; -#ifdef CONFIG_SUN4 - struct resource res; -#endif - int linebytes; + int linebytes, err; - all = kmalloc(sizeof(*all), GFP_KERNEL); - if (!all) { - printk(KERN_ERR "bw2: Cannot allocate memory.\n"); - return; - } - memset(all, 0, sizeof(*all)); - - INIT_LIST_HEAD(&all->list); + all = kzalloc(sizeof(*all), GFP_KERNEL); + if (!all) + return -ENOMEM; spin_lock_init(&all->par.lock); - all->par.sdev = sdev; - -#ifdef CONFIG_SUN4 - if (!sdev) { - all->par.physbase = sun4_bwtwo_physaddr; - res.start = sun4_bwtwo_physaddr; - res.end = res.start + BWTWO_REGISTER_OFFSET + sizeof(struct bw2_regs) - 1; - res.flags = IORESOURCE_IO; - resp = &res; - all->info.var.xres = all->info.var.xres_virtual = 1152; - all->info.var.yres = all->info.var.yres_virtual = 900; - all->info.var.bits_per_pixel = 1; - linebytes = 1152 / 8; - } else -#else - { - BUG_ON(!sdev); - all->par.physbase = sdev->reg_addrs[0].phys_addr; - resp = &sdev->resource[0]; - sbusfb_fill_var(&all->info.var, (sdev ? sdev->prom_node : 0), 1); - linebytes = prom_getintdefault(sdev->prom_node, "linebytes", - all->info.var.xres); - } -#endif + + all->par.physbase = op->resource[0].start; + all->par.which_io = op->resource[0].flags & IORESOURCE_BITS; + + sbusfb_fill_var(&all->info.var, dp->node, 1); + linebytes = of_getintprop_default(dp, "linebytes", + all->info.var.xres); + all->info.var.red.length = all->info.var.green.length = all->info.var.blue.length = all->info.var.bits_per_pixel; all->info.var.red.offset = all->info.var.green.offset = all->info.var.blue.offset = 0; - all->par.regs = sbus_ioremap(resp, BWTWO_REGISTER_OFFSET, - sizeof(struct bw2_regs), "bw2 regs"); + all->par.regs = of_ioremap(&op->resource[0], BWTWO_REGISTER_OFFSET, + sizeof(struct bw2_regs), "bw2 regs"); - if (sdev && !prom_getbool(sdev->prom_node, "width")) + if (!of_find_property(dp, "width", NULL)) bw2_do_default_mode(&all->par, &all->info, &linebytes); all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres); all->info.flags = FBINFO_DEFAULT; all->info.fbops = &bw2_ops; -#if defined(CONFIG_SPARC32) - if (sdev) - all->info.screen_base = (char __iomem *) - prom_getintdefault(sdev->prom_node, "address", 0); -#endif - if (!all->info.screen_base) - all->info.screen_base = - sbus_ioremap(resp, 0, all->par.fbsize, "bw2 ram"); + + all->info.screen_base = + sbus_ioremap(&op->resource[0], 0, all->par.fbsize, "bw2 ram"); all->info.par = &all->par; bw2_blank(0, &all->info); bw2_init_fix(&all->info, linebytes); - if (register_framebuffer(&all->info) < 0) { - printk(KERN_ERR "bw2: Could not register framebuffer.\n"); + err= register_framebuffer(&all->info); + if (err < 0) { + of_iounmap(all->par.regs, sizeof(struct bw2_regs)); + of_iounmap(all->info.screen_base, all->par.fbsize); kfree(all); - return; + return err; } - list_add(&all->list, &bw2_list); + dev_set_drvdata(&op->dev, all); + + printk("%s: bwtwo at %lx:%lx\n", + dp->full_name, + all->par.which_io, all->par.physbase); - printk("bw2: bwtwo at %lx:%lx\n", - (long) (sdev ? sdev->reg_addrs[0].which_io : 0), - (long) all->par.physbase); + return 0; } -int __init bw2_init(void) +static int __devinit bw2_probe(struct of_device *dev, const struct of_device_id *match) { - struct sbus_bus *sbus; - struct sbus_dev *sdev; + struct of_device *op = to_of_device(&dev->dev); - if (fb_get_options("bw2fb", NULL)) - return -ENODEV; + return bw2_init_one(op); +} -#ifdef CONFIG_SUN4 - bw2_init_one(NULL); -#endif - for_all_sbusdev(sdev, sbus) { - if (!strcmp(sdev->prom_name, "bwtwo")) - bw2_init_one(sdev); - } +static int __devexit bw2_remove(struct of_device *dev) +{ + struct all_info *all = dev_get_drvdata(&dev->dev); + + unregister_framebuffer(&all->info); + + of_iounmap(all->par.regs, sizeof(struct bw2_regs)); + of_iounmap(all->info.screen_base, all->par.fbsize); + + kfree(all); + + dev_set_drvdata(&dev->dev, NULL); return 0; } -void __exit bw2_exit(void) -{ - struct list_head *pos, *tmp; +static struct of_device_id bw2_match[] = { + { + .name = "bwtwo", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, bw2_match); - list_for_each_safe(pos, tmp, &bw2_list) { - struct all_info *all = list_entry(pos, typeof(*all), list); +static struct of_platform_driver bw2_driver = { + .name = "bw2", + .match_table = bw2_match, + .probe = bw2_probe, + .remove = __devexit_p(bw2_remove), +}; - unregister_framebuffer(&all->info); - kfree(all); - } +static int __init bw2_init(void) +{ + if (fb_get_options("bw2fb", NULL)) + return -ENODEV; + + return of_register_driver(&bw2_driver, &of_bus_type); } -int __init -bw2_setup(char *arg) +static void __exit bw2_exit(void) { - /* No cmdline options yet... */ - return 0; + return of_unregister_driver(&bw2_driver); } -module_init(bw2_init); -#ifdef MODULE +module_init(bw2_init); module_exit(bw2_exit); -#endif MODULE_DESCRIPTION("framebuffer driver for BWTWO chipsets"); -MODULE_AUTHOR("David S. Miller "); +MODULE_AUTHOR("David S. Miller "); +MODULE_VERSION("2.0"); MODULE_LICENSE("GPL"); -- cgit v1.2.3