1 /* leo.c: LEO frame buffer driver
2 *
3 * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
4 * Copyright (C) 1996-1999 Jakub Jelinek (jj@ultra.linux.cz)
5 * Copyright (C) 1997 Michal Rehacek (Michal.Rehacek@st.mff.cuni.cz)
6 *
7 * Driver layout based loosely on tgafb.c, see that file for credits.
8 */
9
10 #include <linux/module.h>
11 #include <linux/kernel.h>
12 #include <linux/errno.h>
13 #include <linux/string.h>
14 #include <linux/slab.h>
15 #include <linux/delay.h>
16 #include <linux/init.h>
17 #include <linux/fb.h>
18 #include <linux/mm.h>
19 #include <linux/of_device.h>
20 #include <linux/io.h>
21
22 #include <asm/fbio.h>
23
24 #include "sbuslib.h"
25
26 /*
27 * Local functions.
28 */
29
30 static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned,
31 unsigned, struct fb_info *);
32 static int leo_blank(int, struct fb_info *);
33
34 static int leo_mmap(struct fb_info *, struct vm_area_struct *);
35 static int leo_ioctl(struct fb_info *, unsigned int, unsigned long);
36 static int leo_pan_display(struct fb_var_screeninfo *, struct fb_info *);
37
38 /*
39 * Frame buffer operations
40 */
41
42 static struct fb_ops leo_ops = {
43 .owner = THIS_MODULE,
44 .fb_setcolreg = leo_setcolreg,
45 .fb_blank = leo_blank,
46 .fb_pan_display = leo_pan_display,
47 .fb_fillrect = cfb_fillrect,
48 .fb_copyarea = cfb_copyarea,
49 .fb_imageblit = cfb_imageblit,
50 .fb_mmap = leo_mmap,
51 .fb_ioctl = leo_ioctl,
52 #ifdef CONFIG_COMPAT
53 .fb_compat_ioctl = sbusfb_compat_ioctl,
54 #endif
55 };
56
57 #define LEO_OFF_LC_SS0_KRN 0x00200000UL
58 #define LEO_OFF_LC_SS0_USR 0x00201000UL
59 #define LEO_OFF_LC_SS1_KRN 0x01200000UL
60 #define LEO_OFF_LC_SS1_USR 0x01201000UL
61 #define LEO_OFF_LD_SS0 0x00400000UL
62 #define LEO_OFF_LD_SS1 0x01400000UL
63 #define LEO_OFF_LD_GBL 0x00401000UL
64 #define LEO_OFF_LX_KRN 0x00600000UL
65 #define LEO_OFF_LX_CURSOR 0x00601000UL
66 #define LEO_OFF_SS0 0x00800000UL
67 #define LEO_OFF_SS1 0x01800000UL
68 #define LEO_OFF_UNK 0x00602000UL
69 #define LEO_OFF_UNK2 0x00000000UL
70
71 #define LEO_CUR_ENABLE 0x00000080
72 #define LEO_CUR_UPDATE 0x00000030
73 #define LEO_CUR_PROGRESS 0x00000006
74 #define LEO_CUR_UPDATECMAP 0x00000003
75
76 #define LEO_CUR_TYPE_MASK 0x00000000
77 #define LEO_CUR_TYPE_IMAGE 0x00000020
78 #define LEO_CUR_TYPE_CMAP 0x00000050
79
80 struct leo_cursor {
81 u8 xxx0[16];
82 u32 cur_type;
83 u32 cur_misc;
84 u32 cur_cursxy;
85 u32 cur_data;
86 };
87
88 #define LEO_KRN_TYPE_CLUT0 0x00001000
89 #define LEO_KRN_TYPE_CLUT1 0x00001001
90 #define LEO_KRN_TYPE_CLUT2 0x00001002
91 #define LEO_KRN_TYPE_WID 0x00001003
92 #define LEO_KRN_TYPE_UNK 0x00001006
93 #define LEO_KRN_TYPE_VIDEO 0x00002003
94 #define LEO_KRN_TYPE_CLUTDATA 0x00004000
95 #define LEO_KRN_CSR_ENABLE 0x00000008
96 #define LEO_KRN_CSR_PROGRESS 0x00000004
97 #define LEO_KRN_CSR_UNK 0x00000002
98 #define LEO_KRN_CSR_UNK2 0x00000001
99
100 struct leo_lx_krn {
101 u32 krn_type;
102 u32 krn_csr;
103 u32 krn_value;
104 };
105
106 struct leo_lc_ss0_krn {
107 u32 misc;
108 u8 xxx0[0x800-4];
109 u32 rev;
110 };
111
112 struct leo_lc_ss0_usr {
113 u32 csr;
114 u32 addrspace;
115 u32 fontmsk;
116 u32 fontt;
117 u32 extent;
118 u32 src;
119 u32 dst;
120 u32 copy;
121 u32 fill;
122 };
123
124 struct leo_lc_ss1_krn {
125 u8 unknown;
126 };
127
128 struct leo_lc_ss1_usr {
129 u8 unknown;
130 };
131
132 struct leo_ld_ss0 {
133 u8 xxx0[0xe00];
134 u32 csr;
135 u32 wid;
136 u32 wmask;
137 u32 widclip;
138 u32 vclipmin;
139 u32 vclipmax;
140 u32 pickmin; /* SS1 only */
141 u32 pickmax; /* SS1 only */
142 u32 fg;
143 u32 bg;
144 u32 src; /* Copy/Scroll (SS0 only) */
145 u32 dst; /* Copy/Scroll/Fill (SS0 only) */
146 u32 extent; /* Copy/Scroll/Fill size (SS0 only) */
147 u32 xxx1[3];
148 u32 setsem; /* SS1 only */
149 u32 clrsem; /* SS1 only */
150 u32 clrpick; /* SS1 only */
151 u32 clrdat; /* SS1 only */
152 u32 alpha; /* SS1 only */
153 u8 xxx2[0x2c];
154 u32 winbg;
155 u32 planemask;
156 u32 rop;
157 u32 z;
158 u32 dczf; /* SS1 only */
159 u32 dczb; /* SS1 only */
160 u32 dcs; /* SS1 only */
161 u32 dczs; /* SS1 only */
162 u32 pickfb; /* SS1 only */
163 u32 pickbb; /* SS1 only */
164 u32 dcfc; /* SS1 only */
165 u32 forcecol; /* SS1 only */
166 u32 door[8]; /* SS1 only */
167 u32 pick[5]; /* SS1 only */
168 };
169
170 #define LEO_SS1_MISC_ENABLE 0x00000001
171 #define LEO_SS1_MISC_STEREO 0x00000002
172 struct leo_ld_ss1 {
173 u8 xxx0[0xef4];
174 u32 ss1_misc;
175 };
176
177 struct leo_ld_gbl {
178 u8 unknown;
179 };
180
181 struct leo_par {
182 spinlock_t lock;
183 struct leo_lx_krn __iomem *lx_krn;
184 struct leo_lc_ss0_usr __iomem *lc_ss0_usr;
185 struct leo_ld_ss0 __iomem *ld_ss0;
186 struct leo_ld_ss1 __iomem *ld_ss1;
187 struct leo_cursor __iomem *cursor;
188 u32 extent;
189 u32 clut_data[256];
190
191 u32 flags;
192 #define LEO_FLAG_BLANKED 0x00000001
193
194 unsigned long physbase;
195 unsigned long which_io;
196 unsigned long fbsize;
197 };
198
leo_wait(struct leo_lx_krn __iomem * lx_krn)199 static void leo_wait(struct leo_lx_krn __iomem *lx_krn)
200 {
201 int i;
202
203 for (i = 0;
204 (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) &&
205 i < 300000;
206 i++)
207 udelay(1); /* Busy wait at most 0.3 sec */
208 return;
209 }
210
leo_switch_from_graph(struct fb_info * info)211 static void leo_switch_from_graph(struct fb_info *info)
212 {
213 struct leo_par *par = (struct leo_par *) info->par;
214 struct leo_ld_ss0 __iomem *ss = par->ld_ss0;
215 struct leo_cursor __iomem *cursor = par->cursor;
216 unsigned long flags;
217 u32 val;
218
219 spin_lock_irqsave(&par->lock, flags);
220
221 par->extent = ((info->var.xres - 1) |
222 ((info->var.yres - 1) << 16));
223
224 sbus_writel(0xffffffff, &ss->wid);
225 sbus_writel(0xffff, &ss->wmask);
226 sbus_writel(0, &ss->vclipmin);
227 sbus_writel(par->extent, &ss->vclipmax);
228 sbus_writel(0, &ss->fg);
229 sbus_writel(0xff000000, &ss->planemask);
230 sbus_writel(0x310850, &ss->rop);
231 sbus_writel(0, &ss->widclip);
232 sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11),
233 &par->lc_ss0_usr->extent);
234 sbus_writel(4, &par->lc_ss0_usr->addrspace);
235 sbus_writel(0x80000000, &par->lc_ss0_usr->fill);
236 sbus_writel(0, &par->lc_ss0_usr->fontt);
237 do {
238 val = sbus_readl(&par->lc_ss0_usr->csr);
239 } while (val & 0x20000000);
240
241 /* setup screen buffer for cfb_* functions */
242 sbus_writel(1, &ss->wid);
243 sbus_writel(0x00ffffff, &ss->planemask);
244 sbus_writel(0x310b90, &ss->rop);
245 sbus_writel(0, &par->lc_ss0_usr->addrspace);
246
247 /* hide cursor */
248 sbus_writel(sbus_readl(&cursor->cur_misc) & ~LEO_CUR_ENABLE, &cursor->cur_misc);
249
250 spin_unlock_irqrestore(&par->lock, flags);
251 }
252
leo_pan_display(struct fb_var_screeninfo * var,struct fb_info * info)253 static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
254 {
255 /* We just use this to catch switches out of
256 * graphics mode.
257 */
258 leo_switch_from_graph(info);
259
260 if (var->xoffset || var->yoffset || var->vmode)
261 return -EINVAL;
262 return 0;
263 }
264
265 /**
266 * leo_setcolreg - Optional function. Sets a color register.
267 * @regno: boolean, 0 copy local, 1 get_user() function
268 * @red: frame buffer colormap structure
269 * @green: The green value which can be up to 16 bits wide
270 * @blue: The blue value which can be up to 16 bits wide.
271 * @transp: If supported the alpha value which can be up to 16 bits wide.
272 * @info: frame buffer info structure
273 */
leo_setcolreg(unsigned regno,unsigned red,unsigned green,unsigned blue,unsigned transp,struct fb_info * info)274 static int leo_setcolreg(unsigned regno,
275 unsigned red, unsigned green, unsigned blue,
276 unsigned transp, struct fb_info *info)
277 {
278 struct leo_par *par = (struct leo_par *) info->par;
279 struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
280 unsigned long flags;
281 u32 val;
282 int i;
283
284 if (regno >= 256)
285 return 1;
286
287 red >>= 8;
288 green >>= 8;
289 blue >>= 8;
290
291 par->clut_data[regno] = red | (green << 8) | (blue << 16);
292
293 spin_lock_irqsave(&par->lock, flags);
294
295 leo_wait(lx_krn);
296
297 sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type);
298 for (i = 0; i < 256; i++)
299 sbus_writel(par->clut_data[i], &lx_krn->krn_value);
300 sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type);
301
302 val = sbus_readl(&lx_krn->krn_csr);
303 val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2);
304 sbus_writel(val, &lx_krn->krn_csr);
305
306 spin_unlock_irqrestore(&par->lock, flags);
307
308 return 0;
309 }
310
311 /**
312 * leo_blank - Optional function. Blanks the display.
313 * @blank_mode: the blank mode we want.
314 * @info: frame buffer structure that represents a single frame buffer
315 */
leo_blank(int blank,struct fb_info * info)316 static int leo_blank(int blank, struct fb_info *info)
317 {
318 struct leo_par *par = (struct leo_par *) info->par;
319 struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
320 unsigned long flags;
321 u32 val;
322
323 spin_lock_irqsave(&par->lock, flags);
324
325 switch (blank) {
326 case FB_BLANK_UNBLANK: /* Unblanking */
327 val = sbus_readl(&lx_krn->krn_csr);
328 val |= LEO_KRN_CSR_ENABLE;
329 sbus_writel(val, &lx_krn->krn_csr);
330 par->flags &= ~LEO_FLAG_BLANKED;
331 break;
332
333 case FB_BLANK_NORMAL: /* Normal blanking */
334 case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
335 case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
336 case FB_BLANK_POWERDOWN: /* Poweroff */
337 val = sbus_readl(&lx_krn->krn_csr);
338 val &= ~LEO_KRN_CSR_ENABLE;
339 sbus_writel(val, &lx_krn->krn_csr);
340 par->flags |= LEO_FLAG_BLANKED;
341 break;
342 }
343
344 spin_unlock_irqrestore(&par->lock, flags);
345
346 return 0;
347 }
348
349 static struct sbus_mmap_map leo_mmap_map[] = {
350 {
351 .voff = LEO_SS0_MAP,
352 .poff = LEO_OFF_SS0,
353 .size = 0x800000
354 },
355 {
356 .voff = LEO_LC_SS0_USR_MAP,
357 .poff = LEO_OFF_LC_SS0_USR,
358 .size = 0x1000
359 },
360 {
361 .voff = LEO_LD_SS0_MAP,
362 .poff = LEO_OFF_LD_SS0,
363 .size = 0x1000
364 },
365 {
366 .voff = LEO_LX_CURSOR_MAP,
367 .poff = LEO_OFF_LX_CURSOR,
368 .size = 0x1000
369 },
370 {
371 .voff = LEO_SS1_MAP,
372 .poff = LEO_OFF_SS1,
373 .size = 0x800000
374 },
375 {
376 .voff = LEO_LC_SS1_USR_MAP,
377 .poff = LEO_OFF_LC_SS1_USR,
378 .size = 0x1000
379 },
380 {
381 .voff = LEO_LD_SS1_MAP,
382 .poff = LEO_OFF_LD_SS1,
383 .size = 0x1000
384 },
385 {
386 .voff = LEO_UNK_MAP,
387 .poff = LEO_OFF_UNK,
388 .size = 0x1000
389 },
390 {
391 .voff = LEO_LX_KRN_MAP,
392 .poff = LEO_OFF_LX_KRN,
393 .size = 0x1000
394 },
395 {
396 .voff = LEO_LC_SS0_KRN_MAP,
397 .poff = LEO_OFF_LC_SS0_KRN,
398 .size = 0x1000
399 },
400 {
401 .voff = LEO_LC_SS1_KRN_MAP,
402 .poff = LEO_OFF_LC_SS1_KRN,
403 .size = 0x1000
404 },
405 {
406 .voff = LEO_LD_GBL_MAP,
407 .poff = LEO_OFF_LD_GBL,
408 .size = 0x1000
409 },
410 {
411 .voff = LEO_UNK2_MAP,
412 .poff = LEO_OFF_UNK2,
413 .size = 0x100000
414 },
415 { .size = 0 }
416 };
417
leo_mmap(struct fb_info * info,struct vm_area_struct * vma)418 static int leo_mmap(struct fb_info *info, struct vm_area_struct *vma)
419 {
420 struct leo_par *par = (struct leo_par *)info->par;
421
422 return sbusfb_mmap_helper(leo_mmap_map,
423 par->physbase, par->fbsize,
424 par->which_io, vma);
425 }
426
leo_ioctl(struct fb_info * info,unsigned int cmd,unsigned long arg)427 static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
428 {
429 struct leo_par *par = (struct leo_par *) info->par;
430
431 return sbusfb_ioctl_helper(cmd, arg, info,
432 FBTYPE_SUNLEO, 32, par->fbsize);
433 }
434
435 /*
436 * Initialisation
437 */
438
439 static void
leo_init_fix(struct fb_info * info,struct device_node * dp)440 leo_init_fix(struct fb_info *info, struct device_node *dp)
441 {
442 strlcpy(info->fix.id, dp->name, sizeof(info->fix.id));
443
444 info->fix.type = FB_TYPE_PACKED_PIXELS;
445 info->fix.visual = FB_VISUAL_TRUECOLOR;
446
447 info->fix.line_length = 8192;
448
449 info->fix.accel = FB_ACCEL_SUN_LEO;
450 }
451
leo_wid_put(struct fb_info * info,struct fb_wid_list * wl)452 static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl)
453 {
454 struct leo_par *par = (struct leo_par *) info->par;
455 struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
456 struct fb_wid_item *wi;
457 unsigned long flags;
458 u32 val;
459 int i, j;
460
461 spin_lock_irqsave(&par->lock, flags);
462
463 leo_wait(lx_krn);
464
465 for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) {
466 switch (wi->wi_type) {
467 case FB_WID_DBL_8:
468 j = (wi->wi_index & 0xf) + 0x40;
469 break;
470
471 case FB_WID_DBL_24:
472 j = wi->wi_index & 0x3f;
473 break;
474
475 default:
476 continue;
477 };
478 sbus_writel(0x5800 + j, &lx_krn->krn_type);
479 sbus_writel(wi->wi_values[0], &lx_krn->krn_value);
480 }
481 sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type);
482
483 val = sbus_readl(&lx_krn->krn_csr);
484 val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2);
485 sbus_writel(val, &lx_krn->krn_csr);
486
487 spin_unlock_irqrestore(&par->lock, flags);
488 }
489
leo_init_wids(struct fb_info * info)490 static void leo_init_wids(struct fb_info *info)
491 {
492 struct fb_wid_item wi;
493 struct fb_wid_list wl;
494
495 wl.wl_count = 1;
496 wl.wl_list = &wi;
497 wi.wi_type = FB_WID_DBL_8;
498 wi.wi_index = 0;
499 wi.wi_values [0] = 0x2c0;
500 leo_wid_put(info, &wl);
501 wi.wi_index = 1;
502 wi.wi_values [0] = 0x30;
503 leo_wid_put(info, &wl);
504 wi.wi_index = 2;
505 wi.wi_values [0] = 0x20;
506 leo_wid_put(info, &wl);
507 wi.wi_type = FB_WID_DBL_24;
508 wi.wi_index = 1;
509 wi.wi_values [0] = 0x30;
510 leo_wid_put(info, &wl);
511 }
512
leo_init_hw(struct fb_info * info)513 static void leo_init_hw(struct fb_info *info)
514 {
515 struct leo_par *par = (struct leo_par *) info->par;
516 u32 val;
517
518 val = sbus_readl(&par->ld_ss1->ss1_misc);
519 val |= LEO_SS1_MISC_ENABLE;
520 sbus_writel(val, &par->ld_ss1->ss1_misc);
521
522 leo_switch_from_graph(info);
523 }
524
leo_fixup_var_rgb(struct fb_var_screeninfo * var)525 static void leo_fixup_var_rgb(struct fb_var_screeninfo *var)
526 {
527 var->red.offset = 0;
528 var->red.length = 8;
529 var->green.offset = 8;
530 var->green.length = 8;
531 var->blue.offset = 16;
532 var->blue.length = 8;
533 var->transp.offset = 0;
534 var->transp.length = 0;
535 }
536
leo_unmap_regs(struct of_device * op,struct fb_info * info,struct leo_par * par)537 static void leo_unmap_regs(struct of_device *op, struct fb_info *info,
538 struct leo_par *par)
539 {
540 if (par->lc_ss0_usr)
541 of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000);
542 if (par->ld_ss0)
543 of_iounmap(&op->resource[0], par->ld_ss0, 0x1000);
544 if (par->ld_ss1)
545 of_iounmap(&op->resource[0], par->ld_ss1, 0x1000);
546 if (par->lx_krn)
547 of_iounmap(&op->resource[0], par->lx_krn, 0x1000);
548 if (par->cursor)
549 of_iounmap(&op->resource[0],
550 par->cursor, sizeof(struct leo_cursor));
551 if (info->screen_base)
552 of_iounmap(&op->resource[0], info->screen_base, 0x800000);
553 }
554
leo_probe(struct of_device * op,const struct of_device_id * match)555 static int __devinit leo_probe(struct of_device *op,
556 const struct of_device_id *match)
557 {
558 struct device_node *dp = op->node;
559 struct fb_info *info;
560 struct leo_par *par;
561 int linebytes, err;
562
563 info = framebuffer_alloc(sizeof(struct leo_par), &op->dev);
564
565 err = -ENOMEM;
566 if (!info)
567 goto out_err;
568 par = info->par;
569
570 spin_lock_init(&par->lock);
571
572 par->physbase = op->resource[0].start;
573 par->which_io = op->resource[0].flags & IORESOURCE_BITS;
574
575 sbusfb_fill_var(&info->var, dp, 32);
576 leo_fixup_var_rgb(&info->var);
577
578 linebytes = of_getintprop_default(dp, "linebytes",
579 info->var.xres);
580 par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
581
582 par->lc_ss0_usr =
583 of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR,
584 0x1000, "leolc ss0usr");
585 par->ld_ss0 =
586 of_ioremap(&op->resource[0], LEO_OFF_LD_SS0,
587 0x1000, "leold ss0");
588 par->ld_ss1 =
589 of_ioremap(&op->resource[0], LEO_OFF_LD_SS1,
590 0x1000, "leold ss1");
591 par->lx_krn =
592 of_ioremap(&op->resource[0], LEO_OFF_LX_KRN,
593 0x1000, "leolx krn");
594 par->cursor =
595 of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR,
596 sizeof(struct leo_cursor), "leolx cursor");
597 info->screen_base =
598 of_ioremap(&op->resource[0], LEO_OFF_SS0,
599 0x800000, "leo ram");
600 if (!par->lc_ss0_usr ||
601 !par->ld_ss0 ||
602 !par->ld_ss1 ||
603 !par->lx_krn ||
604 !par->cursor ||
605 !info->screen_base)
606 goto out_unmap_regs;
607
608 info->flags = FBINFO_DEFAULT;
609 info->fbops = &leo_ops;
610 info->pseudo_palette = par->clut_data;
611
612 leo_init_wids(info);
613 leo_init_hw(info);
614
615 leo_blank(FB_BLANK_UNBLANK, info);
616
617 if (fb_alloc_cmap(&info->cmap, 256, 0))
618 goto out_unmap_regs;
619
620 leo_init_fix(info, dp);
621
622 err = register_framebuffer(info);
623 if (err < 0)
624 goto out_dealloc_cmap;
625
626 dev_set_drvdata(&op->dev, info);
627
628 printk(KERN_INFO "%s: leo at %lx:%lx\n",
629 dp->full_name,
630 par->which_io, par->physbase);
631
632 return 0;
633
634 out_dealloc_cmap:
635 fb_dealloc_cmap(&info->cmap);
636
637 out_unmap_regs:
638 leo_unmap_regs(op, info, par);
639 framebuffer_release(info);
640
641 out_err:
642 return err;
643 }
644
leo_remove(struct of_device * op)645 static int __devexit leo_remove(struct of_device *op)
646 {
647 struct fb_info *info = dev_get_drvdata(&op->dev);
648 struct leo_par *par = info->par;
649
650 unregister_framebuffer(info);
651 fb_dealloc_cmap(&info->cmap);
652
653 leo_unmap_regs(op, info, par);
654
655 framebuffer_release(info);
656
657 dev_set_drvdata(&op->dev, NULL);
658
659 return 0;
660 }
661
662 static const struct of_device_id leo_match[] = {
663 {
664 .name = "SUNW,leo",
665 },
666 {},
667 };
668 MODULE_DEVICE_TABLE(of, leo_match);
669
670 static struct of_platform_driver leo_driver = {
671 .name = "leo",
672 .match_table = leo_match,
673 .probe = leo_probe,
674 .remove = __devexit_p(leo_remove),
675 };
676
leo_init(void)677 static int __init leo_init(void)
678 {
679 if (fb_get_options("leofb", NULL))
680 return -ENODEV;
681
682 return of_register_driver(&leo_driver, &of_bus_type);
683 }
684
leo_exit(void)685 static void __exit leo_exit(void)
686 {
687 of_unregister_driver(&leo_driver);
688 }
689
690 module_init(leo_init);
691 module_exit(leo_exit);
692
693 MODULE_DESCRIPTION("framebuffer driver for LEO chipsets");
694 MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
695 MODULE_VERSION("2.0");
696 MODULE_LICENSE("GPL");
697