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-rw-r--r--drivers/video/Kconfig13
-rw-r--r--drivers/video/Makefile1
-rw-r--r--drivers/video/sh7760fb.c658
3 files changed, 672 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index c1b7db843411..70d135e0cc47 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1991,6 +1991,19 @@ config FB_COBALT
1991 tristate "Cobalt server LCD frame buffer support" 1991 tristate "Cobalt server LCD frame buffer support"
1992 depends on FB && MIPS_COBALT 1992 depends on FB && MIPS_COBALT
1993 1993
1994config FB_SH7760
1995 bool "SH7760/SH7763 LCDC support"
1996 depends on FB && (CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7763)
1997 select FB_CFB_FILLRECT
1998 select FB_CFB_COPYAREA
1999 select FB_CFB_IMAGEBLIT
2000 help
2001 Support for the SH7760/SH7763 integrated (D)STN/TFT LCD Controller.
2002 Supports display resolutions up to 1024x1024 pixel, grayscale and
2003 color operation, with depths ranging from 1 bpp to 8 bpp monochrome
2004 and 8, 15 or 16 bpp color; 90 degrees clockwise display rotation for
2005 panels <= 320 pixel horizontal resolution.
2006
1994config FB_VIRTUAL 2007config FB_VIRTUAL
1995 tristate "Virtual Frame Buffer support (ONLY FOR TESTING!)" 2008 tristate "Virtual Frame Buffer support (ONLY FOR TESTING!)"
1996 depends on FB 2009 depends on FB
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 358032597757..0ebc1bfd2514 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -106,6 +106,7 @@ obj-$(CONFIG_FB_PMAGB_B) += pmagb-b-fb.o
106obj-$(CONFIG_FB_MAXINE) += maxinefb.o 106obj-$(CONFIG_FB_MAXINE) += maxinefb.o
107obj-$(CONFIG_FB_METRONOME) += metronomefb.o 107obj-$(CONFIG_FB_METRONOME) += metronomefb.o
108obj-$(CONFIG_FB_S1D13XXX) += s1d13xxxfb.o 108obj-$(CONFIG_FB_S1D13XXX) += s1d13xxxfb.o
109obj-$(CONFIG_FB_SH7760) += sh7760fb.o
109obj-$(CONFIG_FB_IMX) += imxfb.o 110obj-$(CONFIG_FB_IMX) += imxfb.o
110obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o 111obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o
111obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o 112obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o
diff --git a/drivers/video/sh7760fb.c b/drivers/video/sh7760fb.c
new file mode 100644
index 000000000000..4d0e28c5790b
--- /dev/null
+++ b/drivers/video/sh7760fb.c
@@ -0,0 +1,658 @@
1/*
2 * SH7760/SH7763 LCDC Framebuffer driver.
3 *
4 * (c) 2006-2008 MSC Vertriebsges.m.b.H.,
5 * Manuel Lauss <mano@roarinelk.homelinux.net>
6 * (c) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
7 *
8 * This file is subject to the terms and conditions of the GNU General
9 * Public License. See the file COPYING in the main directory of this
10 * archive for more details.
11 *
12 * PLEASE HAVE A LOOK AT Documentation/fb/sh7760fb.txt!
13 *
14 * Thanks to Siegfried Schaefer <s.schaefer at schaefer-edv.de>
15 * for his original source and testing!
16 */
17
18#include <linux/completion.h>
19#include <linux/delay.h>
20#include <linux/dma-mapping.h>
21#include <linux/fb.h>
22#include <linux/interrupt.h>
23#include <linux/io.h>
24#include <linux/kernel.h>
25#include <linux/module.h>
26#include <linux/platform_device.h>
27
28#include <asm/sh7760fb.h>
29
30struct sh7760fb_par {
31 void __iomem *base;
32 int irq;
33
34 struct sh7760fb_platdata *pd; /* display information */
35
36 dma_addr_t fbdma; /* physical address */
37
38 int rot; /* rotation enabled? */
39
40 u32 pseudo_palette[16];
41
42 struct platform_device *dev;
43 struct resource *ioarea;
44 struct completion vsync; /* vsync irq event */
45};
46
47static irqreturn_t sh7760fb_irq(int irq, void *data)
48{
49 struct completion *c = data;
50
51 complete(c);
52
53 return IRQ_HANDLED;
54}
55
56static void sh7760fb_wait_vsync(struct fb_info *info)
57{
58 struct sh7760fb_par *par = info->par;
59
60 if (par->pd->novsync)
61 return;
62
63 iowrite16(ioread16(par->base + LDINTR) & ~VINT_CHECK,
64 par->base + LDINTR);
65
66 if (par->irq < 0) {
67 /* poll for vert. retrace: status bit is sticky */
68 while (!(ioread16(par->base + LDINTR) & VINT_CHECK))
69 cpu_relax();
70 } else {
71 /* a "wait_for_irq_event(par->irq)" would be extremely nice */
72 init_completion(&par->vsync);
73 enable_irq(par->irq);
74 wait_for_completion(&par->vsync);
75 disable_irq_nosync(par->irq);
76 }
77}
78
79/* wait_for_lps - wait until power supply has reached a certain state. */
80static int wait_for_lps(struct sh7760fb_par *par, int val)
81{
82 int i = 100;
83 while (--i && ((ioread16(par->base + LDPMMR) & 3) != val))
84 msleep(1);
85
86 if (i <= 0)
87 return -ETIMEDOUT;
88
89 return 0;
90}
91
92/* en/disable the LCDC */
93static int sh7760fb_blank(int blank, struct fb_info *info)
94{
95 struct sh7760fb_par *par = info->par;
96 struct sh7760fb_platdata *pd = par->pd;
97 unsigned short cntr = ioread16(par->base + LDCNTR);
98 unsigned short intr = ioread16(par->base + LDINTR);
99 int lps;
100
101 if (blank == FB_BLANK_UNBLANK) {
102 intr |= VINT_START;
103 cntr = LDCNTR_DON2 | LDCNTR_DON;
104 lps = 3;
105 } else {
106 intr &= ~VINT_START;
107 cntr = LDCNTR_DON2;
108 lps = 0;
109 }
110
111 if (pd->blank)
112 pd->blank(blank);
113
114 iowrite16(intr, par->base + LDINTR);
115 iowrite16(cntr, par->base + LDCNTR);
116
117 return wait_for_lps(par, lps);
118}
119
120/* set color registers */
121static int sh7760fb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
122{
123 struct sh7760fb_par *par = info->par;
124 u32 s = cmap->start;
125 u32 l = cmap->len;
126 u16 *r = cmap->red;
127 u16 *g = cmap->green;
128 u16 *b = cmap->blue;
129 u32 col, tmo;
130 int ret;
131
132 ret = 0;
133
134 sh7760fb_wait_vsync(info);
135
136 /* request palette access */
137 iowrite16(LDPALCR_PALEN, par->base + LDPALCR);
138
139 /* poll for access grant */
140 tmo = 100;
141 while (!(ioread16(par->base + LDPALCR) & LDPALCR_PALS) && (--tmo))
142 cpu_relax();
143
144 if (!tmo) {
145 ret = 1;
146 dev_dbg(info->dev, "no palette access!\n");
147 goto out;
148 }
149
150 while (l && (s < 256)) {
151 col = ((*r) & 0xff) << 16;
152 col |= ((*g) & 0xff) << 8;
153 col |= ((*b) & 0xff);
154 col &= SH7760FB_PALETTE_MASK;
155
156 if (s < 16)
157 ((u32 *) (info->pseudo_palette))[s] = s;
158
159 s++;
160 l--;
161 r++;
162 g++;
163 b++;
164 }
165out:
166 iowrite16(0, par->base + LDPALCR);
167 return ret;
168}
169
170static void encode_fix(struct fb_fix_screeninfo *fix, struct fb_info *info,
171 unsigned long stride)
172{
173 memset(fix, 0, sizeof(struct fb_fix_screeninfo));
174 strcpy(fix->id, "sh7760-lcdc");
175
176 fix->smem_start = (unsigned long)info->screen_base;
177 fix->smem_len = info->screen_size;
178
179 fix->line_length = stride;
180}
181
182static int sh7760fb_get_color_info(struct device *dev,
183 u16 lddfr, int *bpp, int *gray)
184{
185 int lbpp, lgray;
186
187 lgray = lbpp = 0;
188
189 switch (lddfr & LDDFR_COLOR_MASK) {
190 case LDDFR_1BPP_MONO:
191 lgray = 1;
192 lbpp = 1;
193 break;
194 case LDDFR_2BPP_MONO:
195 lgray = 1;
196 lbpp = 2;
197 break;
198 case LDDFR_4BPP_MONO:
199 lgray = 1;
200 case LDDFR_4BPP:
201 lbpp = 4;
202 break;
203 case LDDFR_6BPP_MONO:
204 lgray = 1;
205 case LDDFR_8BPP:
206 lbpp = 8;
207 break;
208 case LDDFR_16BPP_RGB555:
209 case LDDFR_16BPP_RGB565:
210 lbpp = 16;
211 lgray = 0;
212 break;
213 default:
214 dev_dbg(dev, "unsupported LDDFR bit depth.\n");
215 return -EINVAL;
216 }
217
218 if (bpp)
219 *bpp = lbpp;
220 if (gray)
221 *gray = lgray;
222
223 return 0;
224}
225
226static int sh7760fb_check_var(struct fb_var_screeninfo *var,
227 struct fb_info *info)
228{
229 struct fb_fix_screeninfo *fix = &info->fix;
230 struct sh7760fb_par *par = info->par;
231 int ret, bpp;
232
233 /* get color info from register value */
234 ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, NULL);
235 if (ret)
236 return ret;
237
238 var->bits_per_pixel = bpp;
239
240 if ((var->grayscale) && (var->bits_per_pixel == 1))
241 fix->visual = FB_VISUAL_MONO10;
242 else if (var->bits_per_pixel >= 15)
243 fix->visual = FB_VISUAL_TRUECOLOR;
244 else
245 fix->visual = FB_VISUAL_PSEUDOCOLOR;
246
247 /* TODO: add some more validation here */
248 return 0;
249}
250
251/*
252 * sh7760fb_set_par - set videomode.
253 *
254 * NOTE: The rotation, grayscale and DSTN codepaths are
255 * totally untested!
256 */
257static int sh7760fb_set_par(struct fb_info *info)
258{
259 struct sh7760fb_par *par = info->par;
260 struct fb_videomode *vm = par->pd->def_mode;
261 unsigned long sbase, dstn_off, ldsarl, stride;
262 unsigned short hsynp, hsynw, htcn, hdcn;
263 unsigned short vsynp, vsynw, vtln, vdln;
264 unsigned short lddfr, ldmtr;
265 int ret, bpp, gray;
266
267 par->rot = par->pd->rotate;
268
269 /* rotate only works with xres <= 320 */
270 if (par->rot && (vm->xres > 320)) {
271 dev_dbg(info->dev, "rotation disabled due to display size\n");
272 par->rot = 0;
273 }
274
275 /* calculate LCDC reg vals from display parameters */
276 hsynp = vm->right_margin + vm->xres;
277 hsynw = vm->hsync_len;
278 htcn = vm->left_margin + hsynp + hsynw;
279 hdcn = vm->xres;
280 vsynp = vm->lower_margin + vm->yres;
281 vsynw = vm->vsync_len;
282 vtln = vm->upper_margin + vsynp + vsynw;
283 vdln = vm->yres;
284
285 /* get color info from register value */
286 ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, &gray);
287 if (ret)
288 return ret;
289
290 dev_dbg(info->dev, "%dx%d %dbpp %s (orientation %s)\n", hdcn,
291 vdln, bpp, gray ? "grayscale" : "color",
292 par->rot ? "rotated" : "normal");
293
294#ifdef CONFIG_CPU_LITTLE_ENDIAN
295 lddfr = par->pd->lddfr | (1 << 8);
296#else
297 lddfr = par->pd->lddfr & ~(1 << 8);
298#endif
299
300 ldmtr = par->pd->ldmtr;
301
302 if (!(vm->sync & FB_SYNC_HOR_HIGH_ACT))
303 ldmtr |= LDMTR_CL1POL;
304 if (!(vm->sync & FB_SYNC_VERT_HIGH_ACT))
305 ldmtr |= LDMTR_FLMPOL;
306
307 /* shut down LCDC before changing display parameters */
308 sh7760fb_blank(FB_BLANK_POWERDOWN, info);
309
310 iowrite16(par->pd->ldickr, par->base + LDICKR); /* pixclock */
311 iowrite16(ldmtr, par->base + LDMTR); /* polarities */
312 iowrite16(lddfr, par->base + LDDFR); /* color/depth */
313 iowrite16((par->rot ? 1 << 13 : 0), par->base + LDSMR); /* rotate */
314 iowrite16(par->pd->ldpmmr, par->base + LDPMMR); /* Power Management */
315 iowrite16(par->pd->ldpspr, par->base + LDPSPR); /* Power Supply Ctrl */
316
317 /* display resolution */
318 iowrite16(((htcn >> 3) - 1) | (((hdcn >> 3) - 1) << 8),
319 par->base + LDHCNR);
320 iowrite16(vdln - 1, par->base + LDVDLNR);
321 iowrite16(vtln - 1, par->base + LDVTLNR);
322 /* h/v sync signals */
323 iowrite16((vsynp - 1) | ((vsynw - 1) << 12), par->base + LDVSYNR);
324 iowrite16(((hsynp >> 3) - 1) | (((hsynw >> 3) - 1) << 12),
325 par->base + LDHSYNR);
326 /* AC modulation sig */
327 iowrite16(par->pd->ldaclnr, par->base + LDACLNR);
328
329 stride = (par->rot) ? vtln : hdcn;
330 if (!gray)
331 stride *= (bpp + 7) >> 3;
332 else {
333 if (bpp == 1)
334 stride >>= 3;
335 else if (bpp == 2)
336 stride >>= 2;
337 else if (bpp == 4)
338 stride >>= 1;
339 /* 6 bpp == 8 bpp */
340 }
341
342 /* if rotated, stride must be power of 2 */
343 if (par->rot) {
344 unsigned long bit = 1 << 31;
345 while (bit) {
346 if (stride & bit)
347 break;
348 bit >>= 1;
349 }
350 if (stride & ~bit)
351 stride = bit << 1; /* not P-o-2, round up */
352 }
353 iowrite16(stride, par->base + LDLAOR);
354
355 /* set display mem start address */
356 sbase = (unsigned long)par->fbdma;
357 if (par->rot)
358 sbase += (hdcn - 1) * stride;
359
360 iowrite32(sbase, par->base + LDSARU);
361
362 /*
363 * for DSTN need to set address for lower half.
364 * I (mlau) don't know which address to set it to,
365 * so I guessed at (stride * yres/2).
366 */
367 if (((ldmtr & 0x003f) >= LDMTR_DSTN_MONO_8) &&
368 ((ldmtr & 0x003f) <= LDMTR_DSTN_COLOR_16)) {
369
370 dev_dbg(info->dev, " ***** DSTN untested! *****\n");
371
372 dstn_off = stride;
373 if (par->rot)
374 dstn_off *= hdcn >> 1;
375 else
376 dstn_off *= vdln >> 1;
377
378 ldsarl = sbase + dstn_off;
379 } else
380 ldsarl = 0;
381
382 iowrite32(ldsarl, par->base + LDSARL); /* mem for lower half of DSTN */
383
384 encode_fix(&info->fix, info, stride);
385 sh7760fb_check_var(&info->var, info);
386
387 sh7760fb_blank(FB_BLANK_UNBLANK, info); /* panel on! */
388
389 dev_dbg(info->dev, "hdcn : %6d htcn : %6d\n", hdcn, htcn);
390 dev_dbg(info->dev, "hsynw : %6d hsynp : %6d\n", hsynw, hsynp);
391 dev_dbg(info->dev, "vdln : %6d vtln : %6d\n", vdln, vtln);
392 dev_dbg(info->dev, "vsynw : %6d vsynp : %6d\n", vsynw, vsynp);
393 dev_dbg(info->dev, "clksrc: %6d clkdiv: %6d\n",
394 (par->pd->ldickr >> 12) & 3, par->pd->ldickr & 0x1f);
395 dev_dbg(info->dev, "ldpmmr: 0x%04x ldpspr: 0x%04x\n", par->pd->ldpmmr,
396 par->pd->ldpspr);
397 dev_dbg(info->dev, "ldmtr : 0x%04x lddfr : 0x%04x\n", ldmtr, lddfr);
398 dev_dbg(info->dev, "ldlaor: %ld\n", stride);
399 dev_dbg(info->dev, "ldsaru: 0x%08lx ldsarl: 0x%08lx\n", sbase, ldsarl);
400
401 return 0;
402}
403
404static struct fb_ops sh7760fb_ops = {
405 .owner = THIS_MODULE,
406 .fb_blank = sh7760fb_blank,
407 .fb_check_var = sh7760fb_check_var,
408 .fb_setcmap = sh7760fb_setcmap,
409 .fb_set_par = sh7760fb_set_par,
410 .fb_fillrect = cfb_fillrect,
411 .fb_copyarea = cfb_copyarea,
412 .fb_imageblit = cfb_imageblit,
413};
414
415static void sh7760fb_free_mem(struct fb_info *info)
416{
417 struct sh7760fb_par *par = info->par;
418
419 if (!info->screen_base)
420 return;
421
422 dma_free_coherent(info->dev, info->screen_size,
423 info->screen_base, par->fbdma);
424
425 par->fbdma = 0;
426 info->screen_base = NULL;
427 info->screen_size = 0;
428}
429
430/* allocate the framebuffer memory. This memory must be in Area3,
431 * (dictated by the DMA engine) and contiguous, at a 512 byte boundary.
432 */
433static int sh7760fb_alloc_mem(struct fb_info *info)
434{
435 struct sh7760fb_par *par = info->par;
436 void *fbmem;
437 unsigned long vram;
438 int ret, bpp;
439
440 if (info->screen_base)
441 return 0;
442
443 /* get color info from register value */
444 ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, NULL);
445 if (ret) {
446 printk(KERN_ERR "colinfo\n");
447 return ret;
448 }
449
450 /* min VRAM: xres_min = 16, yres_min = 1, bpp = 1: 2byte -> 1 page
451 max VRAM: xres_max = 1024, yres_max = 1024, bpp = 16: 2MB */
452
453 vram = info->var.xres * info->var.yres;
454 if (info->var.grayscale) {
455 if (bpp == 1)
456 vram >>= 3;
457 else if (bpp == 2)
458 vram >>= 2;
459 else if (bpp == 4)
460 vram >>= 1;
461 } else if (bpp > 8)
462 vram *= 2;
463 if ((vram < 1) || (vram > 1024 * 2048)) {
464 dev_dbg(info->dev, "too much VRAM required. Check settings\n");
465 return -ENODEV;
466 }
467
468 if (vram < PAGE_SIZE)
469 vram = PAGE_SIZE;
470
471 fbmem = dma_alloc_coherent(info->dev, vram, &par->fbdma, GFP_KERNEL);
472
473 if (!fbmem)
474 return -ENOMEM;
475
476 if ((par->fbdma & SH7760FB_DMA_MASK) != SH7760FB_DMA_MASK) {
477 sh7760fb_free_mem(info);
478 dev_err(info->dev, "kernel gave me memory at 0x%08lx, which is"
479 "unusable for the LCDC\n", (unsigned long)par->fbdma);
480 return -ENOMEM;
481 }
482
483 info->screen_base = fbmem;
484 info->screen_size = vram;
485
486 return 0;
487}
488
489static int __devinit sh7760fb_probe(struct platform_device *pdev)
490{
491 struct fb_info *info;
492 struct resource *res;
493 struct sh7760fb_par *par;
494 int ret;
495
496 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
497 if (unlikely(res == NULL)) {
498 dev_err(&pdev->dev, "invalid resource\n");
499 return -EINVAL;
500 }
501
502 info = framebuffer_alloc(sizeof(struct sh7760fb_par), &pdev->dev);
503 if (!info)
504 return -ENOMEM;
505
506 par = info->par;
507 par->dev = pdev;
508
509 par->pd = pdev->dev.platform_data;
510 if (!par->pd) {
511 dev_dbg(info->dev, "no display setup data!\n");
512 ret = -ENODEV;
513 goto out_fb;
514 }
515
516 par->ioarea = request_mem_region(res->start,
517 (res->end - res->start), pdev->name);
518 if (!par->ioarea) {
519 dev_err(&pdev->dev, "mmio area busy\n");
520 ret = -EBUSY;
521 goto out_fb;
522 }
523
524 par->base = ioremap_nocache(res->start, res->end - res->start + 1);
525 if (!par->base) {
526 dev_err(&pdev->dev, "cannot remap\n");
527 ret = -ENODEV;
528 goto out_res;
529 }
530
531 iowrite16(0, par->base + LDINTR); /* disable vsync irq */
532 par->irq = platform_get_irq(pdev, 0);
533 if (par->irq >= 0) {
534 ret = request_irq(par->irq, sh7760fb_irq, 0,
535 "sh7760-lcdc", &par->vsync);
536 if (ret) {
537 dev_err(&pdev->dev, "cannot grab IRQ\n");
538 par->irq = -ENXIO;
539 } else
540 disable_irq_nosync(par->irq);
541 }
542
543 fb_videomode_to_var(&info->var, par->pd->def_mode);
544
545 ret = sh7760fb_alloc_mem(info);
546 if (ret) {
547 dev_dbg(info->dev, "framebuffer memory allocation failed!\n");
548 goto out_unmap;
549 }
550
551 info->pseudo_palette = par->pseudo_palette;
552
553 /* fixup color register bitpositions. These are fixed by hardware */
554 info->var.red.offset = 11;
555 info->var.red.length = 5;
556 info->var.red.msb_right = 0;
557
558 info->var.green.offset = 5;
559 info->var.green.length = 6;
560 info->var.green.msb_right = 0;
561
562 info->var.blue.offset = 0;
563 info->var.blue.length = 5;
564 info->var.blue.msb_right = 0;
565
566 info->var.transp.offset = 0;
567 info->var.transp.length = 0;
568 info->var.transp.msb_right = 0;
569
570 /* set the DON2 bit now, before cmap allocation, as it will randomize
571 * palette memory.
572 */
573 iowrite16(LDCNTR_DON2, par->base + LDCNTR);
574 info->fbops = &sh7760fb_ops;
575
576 ret = fb_alloc_cmap(&info->cmap, 256, 0);
577 if (ret) {
578 dev_dbg(info->dev, "Unable to allocate cmap memory\n");
579 goto out_mem;
580 }
581
582 ret = register_framebuffer(info);
583 if (ret < 0) {
584 dev_dbg(info->dev, "cannot register fb!\n");
585 goto out_cmap;
586 }
587 platform_set_drvdata(pdev, info);
588
589 printk(KERN_INFO "%s: memory at phys 0x%08lx-0x%08lx, size %ld KiB\n",
590 pdev->name,
591 (unsigned long)par->fbdma,
592 (unsigned long)(par->fbdma + info->screen_size - 1),
593 info->screen_size >> 10);
594
595 return 0;
596
597out_cmap:
598 sh7760fb_blank(FB_BLANK_POWERDOWN, info);
599 fb_dealloc_cmap(&info->cmap);
600out_mem:
601 sh7760fb_free_mem(info);
602out_unmap:
603 if (par->irq >= 0)
604 free_irq(par->irq, &par->vsync);
605 iounmap(par->base);
606out_res:
607 release_resource(par->ioarea);
608 kfree(par->ioarea);
609out_fb:
610 framebuffer_release(info);
611 return ret;
612}
613
614static int __devexit sh7760fb_remove(struct platform_device *dev)
615{
616 struct fb_info *info = platform_get_drvdata(dev);
617 struct sh7760fb_par *par = info->par;
618
619 sh7760fb_blank(FB_BLANK_POWERDOWN, info);
620 unregister_framebuffer(info);
621 fb_dealloc_cmap(&info->cmap);
622 sh7760fb_free_mem(info);
623 if (par->irq >= 0)
624 free_irq(par->irq, par);
625 iounmap(par->base);
626 release_resource(par->ioarea);
627 kfree(par->ioarea);
628 framebuffer_release(info);
629 platform_set_drvdata(dev, NULL);
630
631 return 0;
632}
633
634static struct platform_driver sh7760_lcdc_driver = {
635 .driver = {
636 .name = "sh7760-lcdc",
637 .owner = THIS_MODULE,
638 },
639 .probe = sh7760fb_probe,
640 .remove = __devexit_p(sh7760fb_remove),
641};
642
643static int __init sh7760fb_init(void)
644{
645 return platform_driver_register(&sh7760_lcdc_driver);
646}
647
648static void __exit sh7760fb_exit(void)
649{
650 platform_driver_unregister(&sh7760_lcdc_driver);
651}
652
653module_init(sh7760fb_init);
654module_exit(sh7760fb_exit);
655
656MODULE_AUTHOR("Nobuhiro Iwamatsu, Manuel Lauss");
657MODULE_DESCRIPTION("FBdev for SH7760/63 integrated LCD Controller");
658MODULE_LICENSE("GPL");