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