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7eebde700f
linux/drivers/video/platinumfb.c
Benjamin Herrenschmidt 7eebde700f [POWERPC] Souped-up of_platform_device support 
This patch first splits of_device.c and of_platform.c, the later containing
the bits relative to of_platform_device's. On the "breaks" side of things,
drivers uisng of_platform_device(s) need to include asm/of_platform.h now
and of_(un)register_driver is now of_(un)register_platform_driver.

In addition to a few utility functions to locate of_platform_device(s),
the main new addition is of_platform_bus_probe() which allows the platform
code to trigger an automatic creation of of_platform_devices for a whole
tree of devices.

The function acts based on the type of the various "parent" devices encountered
from a provided root, using either a default known list of bus types that can be
"probed" or a passed-in list. It will only register devices on busses matching
that list, which mean that typically, it will not register PCI devices, as
expected (since they will be picked up by the PCI layer).

This will be used by Cell platforms using 4xx-type IOs in the Axon bridge
and can be used by any embedded-type device as well.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04 16:08:52 +11:00

703 lines
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/*
* platinumfb.c -- frame buffer device for the PowerMac 'platinum' display
*
* Copyright (C) 1998 Franz Sirl
*
* Frame buffer structure from:
* drivers/video/controlfb.c -- frame buffer device for
* Apple 'control' display chip.
* Copyright (C) 1998 Dan Jacobowitz
*
* Hardware information from:
* platinum.c: Console support for PowerMac "platinum" display adaptor.
* Copyright (C) 1996 Paul Mackerras and Mark Abene
*
* 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.
*/
#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>
#include <asm/prom.h>
#include <asm/pgtable.h>
#include <asm/of_device.h>
#include <asm/of_platform.h>
#include "macmodes.h"
#include "platinumfb.h"
static int default_vmode = VMODE_NVRAM;
static int default_cmode = CMODE_NVRAM;
struct fb_info_platinum {
struct fb_info *info;
int vmode, cmode;
int xres, yres;
int vxres, vyres;
int xoffset, yoffset;
struct {
__u8 red, green, blue;
} palette[256];
u32 pseudo_palette[17];
volatile struct cmap_regs __iomem *cmap_regs;
unsigned long cmap_regs_phys;
volatile struct platinum_regs __iomem *platinum_regs;
unsigned long platinum_regs_phys;
__u8 __iomem *frame_buffer;
volatile __u8 __iomem *base_frame_buffer;
unsigned long frame_buffer_phys;
unsigned long total_vram;
int clktype;
int dactype;
struct resource rsrc_fb, rsrc_reg;
};
/*
* Frame buffer device API
*/
static int platinumfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
u_int transp, struct fb_info *info);
static int platinumfb_blank(int blank_mode, struct fb_info *info);
static int platinumfb_set_par (struct fb_info *info);
static int platinumfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info);
/*
* internal functions
*/
static inline int platinum_vram_reqd(int video_mode, int color_mode);
static int read_platinum_sense(struct fb_info_platinum *pinfo);
static void set_platinum_clock(struct fb_info_platinum *pinfo);
static void platinum_set_hardware(struct fb_info_platinum *pinfo);
static int platinum_var_to_par(struct fb_var_screeninfo *var,
struct fb_info_platinum *pinfo,
int check_only);
/*
* Interface used by the world
*/
static struct fb_ops platinumfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = platinumfb_check_var,
.fb_set_par = platinumfb_set_par,
.fb_setcolreg = platinumfb_setcolreg,
.fb_blank = platinumfb_blank,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
};
/*
* Checks a var structure
*/
static int platinumfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info)
{
return platinum_var_to_par(var, info->par, 1);
}
/*
* Applies current var to display
*/
static int platinumfb_set_par (struct fb_info *info)
{
struct fb_info_platinum *pinfo = info->par;
struct platinum_regvals *init;
int err, offset = 0x20;
if((err = platinum_var_to_par(&info->var, pinfo, 0))) {
printk (KERN_ERR "platinumfb_set_par: error calling"
" platinum_var_to_par: %d.\n", err);
return err;
}
platinum_set_hardware(pinfo);
init = platinum_reg_init[pinfo->vmode-1];
if ((pinfo->vmode == VMODE_832_624_75) && (pinfo->cmode > CMODE_8))
offset = 0x10;
info->screen_base = pinfo->frame_buffer + init->fb_offset + offset;
info->fix.smem_start = (pinfo->frame_buffer_phys) + init->fb_offset + offset;
info->fix.visual = (pinfo->cmode == CMODE_8) ?
FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
info->fix.line_length = vmode_attrs[pinfo->vmode-1].hres * (1<<pinfo->cmode)
+ offset;
printk("line_length: %x\n", info->fix.line_length);
return 0;
}
static int platinumfb_blank(int blank, struct fb_info *fb)
{
/*
* 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
*/
/* [danj] I think there's something fishy about those constants... */
/*
struct fb_info_platinum *info = (struct fb_info_platinum *) fb;
int ctrl;
ctrl = ld_le32(&info->platinum_regs->ctrl.r) | 0x33;
if (blank)
--blank_mode;
if (blank & VESA_VSYNC_SUSPEND)
ctrl &= ~3;
if (blank & VESA_HSYNC_SUSPEND)
ctrl &= ~0x30;
out_le32(&info->platinum_regs->ctrl.r, ctrl);
*/
/* TODO: Figure out how the heck to powerdown this thing! */
return 0;
}
static int platinumfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
u_int transp, struct fb_info *info)
{
struct fb_info_platinum *pinfo = info->par;
volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;
if (regno > 255)
return 1;
red >>= 8;
green >>= 8;
blue >>= 8;
pinfo->palette[regno].red = red;
pinfo->palette[regno].green = green;
pinfo->palette[regno].blue = blue;
out_8(&cmap_regs->addr, regno); /* tell clut what addr to fill */
out_8(&cmap_regs->lut, red); /* send one color channel at */
out_8(&cmap_regs->lut, green); /* a time... */
out_8(&cmap_regs->lut, blue);
if (regno < 16) {
int i;
u32 *pal = info->pseudo_palette;
switch (pinfo->cmode) {
case CMODE_16:
pal[regno] = (regno << 10) | (regno << 5) | regno;
break;
case CMODE_32:
i = (regno << 8) | regno;
pal[regno] = (i << 16) | i;
break;
}
}
return 0;
}
static inline int platinum_vram_reqd(int video_mode, int color_mode)
{
return vmode_attrs[video_mode-1].vres *
(vmode_attrs[video_mode-1].hres * (1<<color_mode) +
((video_mode == VMODE_832_624_75) &&
(color_mode > CMODE_8)) ? 0x10 : 0x20) + 0x1000;
}
#define STORE_D2(a, d) { \
out_8(&cmap_regs->addr, (a+32)); \
out_8(&cmap_regs->d2, (d)); \
}
static void set_platinum_clock(struct fb_info_platinum *pinfo)
{
volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;
struct platinum_regvals *init;
init = platinum_reg_init[pinfo->vmode-1];
STORE_D2(6, 0xc6);
out_8(&cmap_regs->addr,3+32);
if (in_8(&cmap_regs->d2) == 2) {
STORE_D2(7, init->clock_params[pinfo->clktype][0]);
STORE_D2(8, init->clock_params[pinfo->clktype][1]);
STORE_D2(3, 3);
} else {
STORE_D2(4, init->clock_params[pinfo->clktype][0]);
STORE_D2(5, init->clock_params[pinfo->clktype][1]);
STORE_D2(3, 2);
}
__delay(5000);
STORE_D2(9, 0xa6);
}
/* Now how about actually saying, Make it so! */
/* Some things in here probably don't need to be done each time. */
static void platinum_set_hardware(struct fb_info_platinum *pinfo)
{
volatile struct platinum_regs __iomem *platinum_regs = pinfo->platinum_regs;
volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;
struct platinum_regvals *init;
int i;
int vmode, cmode;
vmode = pinfo->vmode;
cmode = pinfo->cmode;
init = platinum_reg_init[vmode - 1];
/* Initialize display timing registers */
out_be32(&platinum_regs->reg[24].r, 7); /* turn display off */
for (i = 0; i < 26; ++i)
out_be32(&platinum_regs->reg[i+32].r, init->regs[i]);
out_be32(&platinum_regs->reg[26+32].r, (pinfo->total_vram == 0x100000 ?
init->offset[cmode] + 4 - cmode :
init->offset[cmode]));
out_be32(&platinum_regs->reg[16].r, (unsigned) pinfo->frame_buffer_phys+init->fb_offset+0x10);
out_be32(&platinum_regs->reg[18].r, init->pitch[cmode]);
out_be32(&platinum_regs->reg[19].r, (pinfo->total_vram == 0x100000 ?
init->mode[cmode+1] :
init->mode[cmode]));
out_be32(&platinum_regs->reg[20].r, (pinfo->total_vram == 0x100000 ? 0x11 : 0x1011));
out_be32(&platinum_regs->reg[21].r, 0x100);
out_be32(&platinum_regs->reg[22].r, 1);
out_be32(&platinum_regs->reg[23].r, 1);
out_be32(&platinum_regs->reg[26].r, 0xc00);
out_be32(&platinum_regs->reg[27].r, 0x235);
/* out_be32(&platinum_regs->reg[27].r, 0x2aa); */
STORE_D2(0, (pinfo->total_vram == 0x100000 ?
init->dacula_ctrl[cmode] & 0xf :
init->dacula_ctrl[cmode]));
STORE_D2(1, 4);
STORE_D2(2, 0);
set_platinum_clock(pinfo);
out_be32(&platinum_regs->reg[24].r, 0); /* turn display on */
}
/*
* Set misc info vars for this driver
*/
static void __devinit platinum_init_info(struct fb_info *info, struct fb_info_platinum *pinfo)
{
/* Fill fb_info */
info->fbops = &platinumfb_ops;
info->pseudo_palette = pinfo->pseudo_palette;
info->flags = FBINFO_DEFAULT;
info->screen_base = pinfo->frame_buffer + 0x20;
fb_alloc_cmap(&info->cmap, 256, 0);
/* Fill fix common fields */
strcpy(info->fix.id, "platinum");
info->fix.mmio_start = pinfo->platinum_regs_phys;
info->fix.mmio_len = 0x1000;
info->fix.type = FB_TYPE_PACKED_PIXELS;
info->fix.smem_start = pinfo->frame_buffer_phys + 0x20; /* will be updated later */
info->fix.smem_len = pinfo->total_vram - 0x20;
info->fix.ywrapstep = 0;
info->fix.xpanstep = 0;
info->fix.ypanstep = 0;
info->fix.type_aux = 0;
info->fix.accel = FB_ACCEL_NONE;
}
static int __devinit platinum_init_fb(struct fb_info *info)
{
struct fb_info_platinum *pinfo = info->par;
struct fb_var_screeninfo var;
int sense, rc;
sense = read_platinum_sense(pinfo);
printk(KERN_INFO "platinumfb: Monitor sense value = 0x%x, ", sense);
if (default_vmode == VMODE_NVRAM) {
#ifdef CONFIG_NVRAM
default_vmode = nvram_read_byte(NV_VMODE);
if (default_vmode <= 0 || default_vmode > VMODE_MAX ||
!platinum_reg_init[default_vmode-1])
#endif
default_vmode = VMODE_CHOOSE;
}
if (default_vmode == VMODE_CHOOSE) {
default_vmode = mac_map_monitor_sense(sense);
}
if (default_vmode <= 0 || default_vmode > VMODE_MAX)
default_vmode = VMODE_640_480_60;
#ifdef CONFIG_NVRAM
if (default_cmode == CMODE_NVRAM)
default_cmode = nvram_read_byte(NV_CMODE);
#endif
if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
default_cmode = CMODE_8;
/*
* Reduce the pixel size if we don't have enough VRAM.
*/
while(default_cmode > CMODE_8 &&
platinum_vram_reqd(default_vmode, default_cmode) > pinfo->total_vram)
default_cmode--;
printk("platinumfb: Using video mode %d and color mode %d.\n", default_vmode, default_cmode);
/* Setup default var */
if (mac_vmode_to_var(default_vmode, default_cmode, &var) < 0) {
/* This shouldn't happen! */
printk("mac_vmode_to_var(%d, %d,) failed\n", default_vmode, default_cmode);
try_again:
default_vmode = VMODE_640_480_60;
default_cmode = CMODE_8;
if (mac_vmode_to_var(default_vmode, default_cmode, &var) < 0) {
printk(KERN_ERR "platinumfb: mac_vmode_to_var() failed\n");
return -ENXIO;
}
}
/* Initialize info structure */
platinum_init_info(info, pinfo);
/* Apply default var */
info->var = var;
var.activate = FB_ACTIVATE_NOW;
rc = fb_set_var(info, &var);
if (rc && (default_vmode != VMODE_640_480_60 || default_cmode != CMODE_8))
goto try_again;
/* Register with fbdev layer */
rc = register_framebuffer(info);
if (rc < 0)
return rc;
printk(KERN_INFO "fb%d: Apple Platinum frame buffer device\n", info->node);
return 0;
}
/*
* Get the monitor sense value.
* Note that this can be called before calibrate_delay,
* so we can't use udelay.
*/
static int read_platinum_sense(struct fb_info_platinum *info)
{
volatile struct platinum_regs __iomem *platinum_regs = info->platinum_regs;
int sense;
out_be32(&platinum_regs->reg[23].r, 7); /* turn off drivers */
__delay(2000);
sense = (~in_be32(&platinum_regs->reg[23].r) & 7) << 8;
/* drive each sense line low in turn and collect the other 2 */
out_be32(&platinum_regs->reg[23].r, 3); /* drive A low */
__delay(2000);
sense |= (~in_be32(&platinum_regs->reg[23].r) & 3) << 4;
out_be32(&platinum_regs->reg[23].r, 5); /* drive B low */
__delay(2000);
sense |= (~in_be32(&platinum_regs->reg[23].r) & 4) << 1;
sense |= (~in_be32(&platinum_regs->reg[23].r) & 1) << 2;
out_be32(&platinum_regs->reg[23].r, 6); /* drive C low */
__delay(2000);
sense |= (~in_be32(&platinum_regs->reg[23].r) & 6) >> 1;
out_be32(&platinum_regs->reg[23].r, 7); /* turn off drivers */
return sense;
}
/*
* This routine takes a user-supplied var, and picks the best vmode/cmode from it.
* It also updates the var structure to the actual mode data obtained
*/
static int platinum_var_to_par(struct fb_var_screeninfo *var,
struct fb_info_platinum *pinfo,
int check_only)
{
int vmode, cmode;
if (mac_var_to_vmode(var, &vmode, &cmode) != 0) {
printk(KERN_ERR "platinum_var_to_par: mac_var_to_vmode unsuccessful.\n");
printk(KERN_ERR "platinum_var_to_par: var->xres = %d\n", var->xres);
printk(KERN_ERR "platinum_var_to_par: var->yres = %d\n", var->yres);
printk(KERN_ERR "platinum_var_to_par: var->xres_virtual = %d\n", var->xres_virtual);
printk(KERN_ERR "platinum_var_to_par: var->yres_virtual = %d\n", var->yres_virtual);
printk(KERN_ERR "platinum_var_to_par: var->bits_per_pixel = %d\n", var->bits_per_pixel);
printk(KERN_ERR "platinum_var_to_par: var->pixclock = %d\n", var->pixclock);
printk(KERN_ERR "platinum_var_to_par: var->vmode = %d\n", var->vmode);
return -EINVAL;
}
if (!platinum_reg_init[vmode-1]) {
printk(KERN_ERR "platinum_var_to_par, vmode %d not valid.\n", vmode);
return -EINVAL;
}
if (platinum_vram_reqd(vmode, cmode) > pinfo->total_vram) {
printk(KERN_ERR "platinum_var_to_par, not enough ram for vmode %d, cmode %d.\n", vmode, cmode);
return -EINVAL;
}
if (mac_vmode_to_var(vmode, cmode, var))
return -EINVAL;
if (check_only)
return 0;
pinfo->vmode = vmode;
pinfo->cmode = cmode;
pinfo->xres = vmode_attrs[vmode-1].hres;
pinfo->yres = vmode_attrs[vmode-1].vres;
pinfo->xoffset = 0;
pinfo->yoffset = 0;
pinfo->vxres = pinfo->xres;
pinfo->vyres = pinfo->yres;
return 0;
}
/*
* Parse user speficied options (`video=platinumfb:')
*/
static int __init platinumfb_setup(char *options)
{
char *this_opt;
if (!options || !*options)
return 0;
while ((this_opt = strsep(&options, ",")) != NULL) {
if (!strncmp(this_opt, "vmode:", 6)) {
int vmode = simple_strtoul(this_opt+6, NULL, 0);
if (vmode > 0 && vmode <= VMODE_MAX)
default_vmode = vmode;
} else if (!strncmp(this_opt, "cmode:", 6)) {
int depth = simple_strtoul(this_opt+6, NULL, 0);
switch (depth) {
case 0:
case 8:
default_cmode = CMODE_8;
break;
case 15:
case 16:
default_cmode = CMODE_16;
break;
case 24:
case 32:
default_cmode = CMODE_32;
break;
}
}
}
return 0;
}
#ifdef __powerpc__
#define invalidate_cache(addr) \
asm volatile("eieio; dcbf 0,%1" \
: "=m" (*(addr)) : "r" (addr) : "memory");
#else
#define invalidate_cache(addr)
#endif
static int __devinit platinumfb_probe(struct of_device* odev,
const struct of_device_id *match)
{
struct device_node *dp = odev->node;
struct fb_info *info;
struct fb_info_platinum *pinfo;
volatile __u8 *fbuffer;
int bank0, bank1, bank2, bank3, rc;
printk(KERN_INFO "platinumfb: Found Apple Platinum video hardware\n");
info = framebuffer_alloc(sizeof(*pinfo), &odev->dev);
if (info == NULL)
return -ENOMEM;
pinfo = info->par;
if (of_address_to_resource(dp, 0, &pinfo->rsrc_reg) ||
of_address_to_resource(dp, 1, &pinfo->rsrc_fb)) {
printk(KERN_ERR "platinumfb: Can't get resources\n");
framebuffer_release(info);
return -ENXIO;
}
if (!request_mem_region(pinfo->rsrc_reg.start,
pinfo->rsrc_reg.start -
pinfo->rsrc_reg.end + 1,
"platinumfb registers")) {
framebuffer_release(info);
return -ENXIO;
}
if (!request_mem_region(pinfo->rsrc_fb.start,
pinfo->rsrc_fb.start
- pinfo->rsrc_fb.end + 1,
"platinumfb framebuffer")) {
release_mem_region(pinfo->rsrc_reg.start,
pinfo->rsrc_reg.end -
pinfo->rsrc_reg.start + 1);
framebuffer_release(info);
return -ENXIO;
}
/* frame buffer - map only 4MB */
pinfo->frame_buffer_phys = pinfo->rsrc_fb.start;
pinfo->frame_buffer = __ioremap(pinfo->rsrc_fb.start, 0x400000,
_PAGE_WRITETHRU);
pinfo->base_frame_buffer = pinfo->frame_buffer;
/* registers */
pinfo->platinum_regs_phys = pinfo->rsrc_reg.start;
pinfo->platinum_regs = ioremap(pinfo->rsrc_reg.start, 0x1000);
pinfo->cmap_regs_phys = 0xf301b000; /* XXX not in prom? */
request_mem_region(pinfo->cmap_regs_phys, 0x1000, "platinumfb cmap");
pinfo->cmap_regs = ioremap(pinfo->cmap_regs_phys, 0x1000);
/* Grok total video ram */
out_be32(&pinfo->platinum_regs->reg[16].r, (unsigned)pinfo->frame_buffer_phys);
out_be32(&pinfo->platinum_regs->reg[20].r, 0x1011); /* select max vram */
out_be32(&pinfo->platinum_regs->reg[24].r, 0); /* switch in vram */
fbuffer = pinfo->base_frame_buffer;
fbuffer[0x100000] = 0x34;
fbuffer[0x100008] = 0x0;
invalidate_cache(&fbuffer[0x100000]);
fbuffer[0x200000] = 0x56;
fbuffer[0x200008] = 0x0;
invalidate_cache(&fbuffer[0x200000]);
fbuffer[0x300000] = 0x78;
fbuffer[0x300008] = 0x0;
invalidate_cache(&fbuffer[0x300000]);
bank0 = 1; /* builtin 1MB vram, always there */
bank1 = fbuffer[0x100000] == 0x34;
bank2 = fbuffer[0x200000] == 0x56;
bank3 = fbuffer[0x300000] == 0x78;
pinfo->total_vram = (bank0 + bank1 + bank2 + bank3) * 0x100000;
printk(KERN_INFO "platinumfb: Total VRAM = %dMB (%d%d%d%d)\n", (int) (pinfo->total_vram / 1024 / 1024),
bank3, bank2, bank1, bank0);
/*
* Try to determine whether we have an old or a new DACula.
*/
out_8(&pinfo->cmap_regs->addr, 0x40);
pinfo->dactype = in_8(&pinfo->cmap_regs->d2);
switch (pinfo->dactype) {
case 0x3c:
pinfo->clktype = 1;
printk(KERN_INFO "platinumfb: DACula type 0x3c\n");
break;
case 0x84:
pinfo->clktype = 0;
printk(KERN_INFO "platinumfb: DACula type 0x84\n");
break;
default:
pinfo->clktype = 0;
printk(KERN_INFO "platinumfb: Unknown DACula type: %x\n", pinfo->dactype);
break;
}
dev_set_drvdata(&odev->dev, info);
rc = platinum_init_fb(info);
if (rc != 0) {
dev_set_drvdata(&odev->dev, NULL);
framebuffer_release(info);
}
return rc;
}
static int __devexit platinumfb_remove(struct of_device* odev)
{
struct fb_info *info = dev_get_drvdata(&odev->dev);
struct fb_info_platinum *pinfo = info->par;
unregister_framebuffer (info);
/* Unmap frame buffer and registers */
release_mem_region(pinfo->rsrc_fb.start,
pinfo->rsrc_fb.end -
pinfo->rsrc_fb.start + 1);
release_mem_region(pinfo->rsrc_reg.start,
pinfo->rsrc_reg.end -
pinfo->rsrc_reg.start + 1);
iounmap(pinfo->frame_buffer);
iounmap(pinfo->platinum_regs);
release_mem_region(pinfo->cmap_regs_phys, 0x1000);
iounmap(pinfo->cmap_regs);
framebuffer_release(info);
return 0;
}
static struct of_device_id platinumfb_match[] =
{
{
.name = "platinum",
},
{},
};
static struct of_platform_driver platinum_driver =
{
.name = "platinumfb",
.match_table = platinumfb_match,
.probe = platinumfb_probe,
.remove = platinumfb_remove,
};
static int __init platinumfb_init(void)
{
#ifndef MODULE
char *option = NULL;
if (fb_get_options("platinumfb", &option))
return -ENODEV;
platinumfb_setup(option);
#endif
of_register_platform_driver(&platinum_driver);
return 0;
}
static void __exit platinumfb_exit(void)
{
of_unregister_platform_driver(&platinum_driver);
}
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("framebuffer driver for Apple Platinum video");
module_init(platinumfb_init);
#ifdef MODULE
module_exit(platinumfb_exit);
#endif
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