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[SPARC]: Convert all FB SBUS drivers to of_driver framework.
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Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored and David S. Miller committed Jun 29, 2006
1 parent 3ca9fab commit 50312ce
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Showing 8 changed files with 1,179 additions and 1,149 deletions.
213 changes: 96 additions & 117 deletions drivers/video/bw2.c
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Original file line number Diff line number Diff line change
@@ -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)
Expand All @@ -19,14 +19,11 @@
#include <linux/mm.h>

#include <asm/io.h>
#include <asm/sbus.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/of_device.h>
#include <asm/fbio.h>

#ifdef CONFIG_SPARC32
#include <asm/sun4paddr.h>
#endif

#include "sbuslib.h"

/*
Expand Down Expand Up @@ -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 */
Expand Down Expand Up @@ -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;
};

/**
Expand Down Expand Up @@ -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);
}

Expand Down Expand Up @@ -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 <davem@redhat.com>");
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");
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