Commit | Line | Data |
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7caa4342 DHG |
1 | /* |
2 | * SuperH Mobile MERAM Driver for SuperH Mobile LCDC Driver | |
3 | * | |
4 | * Copyright (c) 2011 Damian Hobson-Garcia <dhobsong@igel.co.jp> | |
5 | * Takanari Hayama <taki@igel.co.jp> | |
6 | * | |
7 | * This file is subject to the terms and conditions of the GNU General Public | |
8 | * License. See the file "COPYING" in the main directory of this archive | |
9 | * for more details. | |
10 | */ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/device.h> | |
17673778 | 15 | #include <linux/pm_runtime.h> |
7caa4342 DHG |
16 | #include <linux/io.h> |
17 | #include <linux/slab.h> | |
18 | #include <linux/platform_device.h> | |
19 | ||
20 | #include "sh_mobile_meram.h" | |
21 | ||
22 | /* meram registers */ | |
23 | #define MExxCTL 0x0 | |
24 | #define MExxBSIZE 0x4 | |
25 | #define MExxMNCF 0x8 | |
26 | #define MExxSARA 0x10 | |
27 | #define MExxSARB 0x14 | |
28 | #define MExxSBSIZE 0x18 | |
29 | ||
30 | #define MERAM_MExxCTL_VAL(ctl, next_icb, addr) \ | |
31 | ((ctl) | (((next_icb) & 0x1f) << 11) | (((addr) & 0x7ff) << 16)) | |
32 | #define MERAM_MExxBSIZE_VAL(a, b, c) \ | |
33 | (((a) << 28) | ((b) << 16) | (c)) | |
34 | ||
35 | #define MEVCR1 0x4 | |
36 | #define MEACTS 0x10 | |
37 | #define MEQSEL1 0x40 | |
38 | #define MEQSEL2 0x44 | |
39 | ||
40 | /* settings */ | |
41 | #define MERAM_SEC_LINE 15 | |
42 | #define MERAM_LINE_WIDTH 2048 | |
43 | ||
44 | /* | |
45 | * MERAM/ICB access functions | |
46 | */ | |
47 | ||
48 | #define MERAM_ICB_OFFSET(base, idx, off) \ | |
49 | ((base) + (0x400 + ((idx) * 0x20) + (off))) | |
50 | ||
51 | static inline void meram_write_icb(void __iomem *base, int idx, int off, | |
52 | unsigned long val) | |
53 | { | |
54 | iowrite32(val, MERAM_ICB_OFFSET(base, idx, off)); | |
55 | } | |
56 | ||
57 | static inline unsigned long meram_read_icb(void __iomem *base, int idx, int off) | |
58 | { | |
59 | return ioread32(MERAM_ICB_OFFSET(base, idx, off)); | |
60 | } | |
61 | ||
62 | static inline void meram_write_reg(void __iomem *base, int off, | |
63 | unsigned long val) | |
64 | { | |
65 | iowrite32(val, base + off); | |
66 | } | |
67 | ||
68 | static inline unsigned long meram_read_reg(void __iomem *base, int off) | |
69 | { | |
70 | return ioread32(base + off); | |
71 | } | |
72 | ||
73 | /* | |
74 | * register ICB | |
75 | */ | |
76 | ||
77 | #define MERAM_CACHE_START(p) ((p) >> 16) | |
78 | #define MERAM_CACHE_END(p) ((p) & 0xffff) | |
79 | #define MERAM_CACHE_SET(o, s) ((((o) & 0xffff) << 16) | \ | |
80 | (((o) + (s) - 1) & 0xffff)) | |
81 | ||
82 | /* | |
83 | * check if there's no overlaps in MERAM allocation. | |
84 | */ | |
85 | ||
86 | static inline int meram_check_overlap(struct sh_mobile_meram_priv *priv, | |
87 | struct sh_mobile_meram_icb *new) | |
88 | { | |
89 | int i; | |
90 | int used_start, used_end, meram_start, meram_end; | |
91 | ||
92 | /* valid ICB? */ | |
93 | if (new->marker_icb & ~0x1f || new->cache_icb & ~0x1f) | |
94 | return 1; | |
95 | ||
96 | if (test_bit(new->marker_icb, &priv->used_icb) || | |
97 | test_bit(new->cache_icb, &priv->used_icb)) | |
98 | return 1; | |
99 | ||
100 | for (i = 0; i < priv->used_meram_cache_regions; i++) { | |
101 | used_start = MERAM_CACHE_START(priv->used_meram_cache[i]); | |
102 | used_end = MERAM_CACHE_END(priv->used_meram_cache[i]); | |
103 | meram_start = new->meram_offset; | |
104 | meram_end = new->meram_offset + new->meram_size; | |
105 | ||
106 | if ((meram_start >= used_start && meram_start < used_end) || | |
107 | (meram_end > used_start && meram_end < used_end)) | |
108 | return 1; | |
109 | } | |
110 | ||
111 | return 0; | |
112 | } | |
113 | ||
114 | /* | |
115 | * mark the specified ICB as used | |
116 | */ | |
117 | ||
118 | static inline void meram_mark(struct sh_mobile_meram_priv *priv, | |
119 | struct sh_mobile_meram_icb *new) | |
120 | { | |
121 | int n; | |
122 | ||
123 | if (new->marker_icb < 0 || new->cache_icb < 0) | |
124 | return; | |
125 | ||
126 | __set_bit(new->marker_icb, &priv->used_icb); | |
127 | __set_bit(new->cache_icb, &priv->used_icb); | |
128 | ||
129 | n = priv->used_meram_cache_regions; | |
130 | ||
131 | priv->used_meram_cache[n] = MERAM_CACHE_SET(new->meram_offset, | |
132 | new->meram_size); | |
133 | ||
134 | priv->used_meram_cache_regions++; | |
135 | } | |
136 | ||
137 | /* | |
138 | * unmark the specified ICB as used | |
139 | */ | |
140 | ||
141 | static inline void meram_unmark(struct sh_mobile_meram_priv *priv, | |
142 | struct sh_mobile_meram_icb *icb) | |
143 | { | |
144 | int i; | |
145 | unsigned long pattern; | |
146 | ||
147 | if (icb->marker_icb < 0 || icb->cache_icb < 0) | |
148 | return; | |
149 | ||
150 | __clear_bit(icb->marker_icb, &priv->used_icb); | |
151 | __clear_bit(icb->cache_icb, &priv->used_icb); | |
152 | ||
153 | pattern = MERAM_CACHE_SET(icb->meram_offset, icb->meram_size); | |
154 | for (i = 0; i < priv->used_meram_cache_regions; i++) { | |
155 | if (priv->used_meram_cache[i] == pattern) { | |
156 | while (i < priv->used_meram_cache_regions - 1) { | |
157 | priv->used_meram_cache[i] = | |
158 | priv->used_meram_cache[i + 1] ; | |
159 | i++; | |
160 | } | |
161 | priv->used_meram_cache[i] = 0; | |
162 | priv->used_meram_cache_regions--; | |
163 | break; | |
164 | } | |
165 | } | |
166 | } | |
167 | ||
3fedd2ac DHG |
168 | /* |
169 | * is this a YCbCr(NV12, NV16 or NV24) colorspace | |
170 | */ | |
171 | static inline int is_nvcolor(int cspace) | |
172 | { | |
173 | if (cspace == SH_MOBILE_MERAM_PF_NV || | |
174 | cspace == SH_MOBILE_MERAM_PF_NV24) | |
175 | return 1; | |
176 | return 0; | |
177 | } | |
7caa4342 DHG |
178 | |
179 | /* | |
180 | * set the next address to fetch | |
181 | */ | |
182 | static inline void meram_set_next_addr(struct sh_mobile_meram_priv *priv, | |
183 | struct sh_mobile_meram_cfg *cfg, | |
184 | unsigned long base_addr_y, | |
185 | unsigned long base_addr_c) | |
186 | { | |
187 | unsigned long target; | |
188 | ||
189 | target = (cfg->current_reg) ? MExxSARA : MExxSARB; | |
190 | cfg->current_reg ^= 1; | |
191 | ||
192 | /* set the next address to fetch */ | |
193 | meram_write_icb(priv->base, cfg->icb[0].cache_icb, target, | |
194 | base_addr_y); | |
195 | meram_write_icb(priv->base, cfg->icb[0].marker_icb, target, | |
196 | base_addr_y + cfg->icb[0].cache_unit); | |
197 | ||
3fedd2ac | 198 | if (is_nvcolor(cfg->pixelformat)) { |
7caa4342 DHG |
199 | meram_write_icb(priv->base, cfg->icb[1].cache_icb, target, |
200 | base_addr_c); | |
201 | meram_write_icb(priv->base, cfg->icb[1].marker_icb, target, | |
202 | base_addr_c + cfg->icb[1].cache_unit); | |
203 | } | |
204 | } | |
205 | ||
206 | /* | |
207 | * get the next ICB address | |
208 | */ | |
209 | static inline void meram_get_next_icb_addr(struct sh_mobile_meram_info *pdata, | |
210 | struct sh_mobile_meram_cfg *cfg, | |
211 | unsigned long *icb_addr_y, | |
212 | unsigned long *icb_addr_c) | |
213 | { | |
214 | unsigned long icb_offset; | |
215 | ||
216 | if (pdata->addr_mode == SH_MOBILE_MERAM_MODE0) | |
217 | icb_offset = 0x80000000 | (cfg->current_reg << 29); | |
218 | else | |
219 | icb_offset = 0xc0000000 | (cfg->current_reg << 23); | |
220 | ||
221 | *icb_addr_y = icb_offset | (cfg->icb[0].marker_icb << 24); | |
06c8a6a3 | 222 | if (is_nvcolor(cfg->pixelformat)) |
7caa4342 DHG |
223 | *icb_addr_c = icb_offset | (cfg->icb[1].marker_icb << 24); |
224 | } | |
225 | ||
226 | #define MERAM_CALC_BYTECOUNT(x, y) \ | |
227 | (((x) * (y) + (MERAM_LINE_WIDTH - 1)) & ~(MERAM_LINE_WIDTH - 1)) | |
228 | ||
229 | /* | |
230 | * initialize MERAM | |
231 | */ | |
232 | ||
233 | static int meram_init(struct sh_mobile_meram_priv *priv, | |
234 | struct sh_mobile_meram_icb *icb, | |
235 | int xres, int yres, int *out_pitch) | |
236 | { | |
237 | unsigned long total_byte_count = MERAM_CALC_BYTECOUNT(xres, yres); | |
238 | unsigned long bnm; | |
239 | int lcdc_pitch, xpitch, line_cnt; | |
240 | int save_lines; | |
241 | ||
242 | /* adjust pitch to 1024, 2048, 4096 or 8192 */ | |
243 | lcdc_pitch = (xres - 1) | 1023; | |
244 | lcdc_pitch = lcdc_pitch | (lcdc_pitch >> 1); | |
245 | lcdc_pitch = lcdc_pitch | (lcdc_pitch >> 2); | |
246 | lcdc_pitch += 1; | |
247 | ||
248 | /* derive settings */ | |
249 | if (lcdc_pitch == 8192 && yres >= 1024) { | |
250 | lcdc_pitch = xpitch = MERAM_LINE_WIDTH; | |
251 | line_cnt = total_byte_count >> 11; | |
252 | *out_pitch = xres; | |
253 | save_lines = (icb->meram_size / 16 / MERAM_SEC_LINE); | |
254 | save_lines *= MERAM_SEC_LINE; | |
255 | } else { | |
256 | xpitch = xres; | |
257 | line_cnt = yres; | |
258 | *out_pitch = lcdc_pitch; | |
259 | save_lines = icb->meram_size / (lcdc_pitch >> 10) / 2; | |
260 | save_lines &= 0xff; | |
261 | } | |
262 | bnm = (save_lines - 1) << 16; | |
263 | ||
264 | /* TODO: we better to check if we have enough MERAM buffer size */ | |
265 | ||
266 | /* set up ICB */ | |
267 | meram_write_icb(priv->base, icb->cache_icb, MExxBSIZE, | |
268 | MERAM_MExxBSIZE_VAL(0x0, line_cnt - 1, xpitch - 1)); | |
269 | meram_write_icb(priv->base, icb->marker_icb, MExxBSIZE, | |
270 | MERAM_MExxBSIZE_VAL(0xf, line_cnt - 1, xpitch - 1)); | |
271 | ||
272 | meram_write_icb(priv->base, icb->cache_icb, MExxMNCF, bnm); | |
273 | meram_write_icb(priv->base, icb->marker_icb, MExxMNCF, bnm); | |
274 | ||
275 | meram_write_icb(priv->base, icb->cache_icb, MExxSBSIZE, xpitch); | |
276 | meram_write_icb(priv->base, icb->marker_icb, MExxSBSIZE, xpitch); | |
277 | ||
278 | /* save a cache unit size */ | |
279 | icb->cache_unit = xres * save_lines; | |
280 | ||
281 | /* | |
282 | * Set MERAM for framebuffer | |
283 | * | |
284 | * 0x70f: WD = 0x3, WS=0x1, CM=0x1, MD=FB mode | |
285 | * we also chain the cache_icb and the marker_icb. | |
286 | * we also split the allocated MERAM buffer between two ICBs. | |
287 | */ | |
288 | meram_write_icb(priv->base, icb->cache_icb, MExxCTL, | |
289 | MERAM_MExxCTL_VAL(0x70f, icb->marker_icb, | |
290 | icb->meram_offset)); | |
291 | meram_write_icb(priv->base, icb->marker_icb, MExxCTL, | |
292 | MERAM_MExxCTL_VAL(0x70f, icb->cache_icb, | |
293 | icb->meram_offset + | |
294 | icb->meram_size / 2)); | |
295 | ||
296 | return 0; | |
297 | } | |
298 | ||
299 | static void meram_deinit(struct sh_mobile_meram_priv *priv, | |
300 | struct sh_mobile_meram_icb *icb) | |
301 | { | |
302 | /* disable ICB */ | |
303 | meram_write_icb(priv->base, icb->cache_icb, MExxCTL, 0); | |
304 | meram_write_icb(priv->base, icb->marker_icb, MExxCTL, 0); | |
305 | icb->cache_unit = 0; | |
306 | } | |
307 | ||
308 | /* | |
309 | * register the ICB | |
310 | */ | |
311 | ||
312 | static int sh_mobile_meram_register(struct sh_mobile_meram_info *pdata, | |
313 | struct sh_mobile_meram_cfg *cfg, | |
314 | int xres, int yres, int pixelformat, | |
315 | unsigned long base_addr_y, | |
316 | unsigned long base_addr_c, | |
317 | unsigned long *icb_addr_y, | |
318 | unsigned long *icb_addr_c, | |
319 | int *pitch) | |
320 | { | |
321 | struct platform_device *pdev; | |
322 | struct sh_mobile_meram_priv *priv; | |
323 | int n, out_pitch; | |
324 | int error = 0; | |
325 | ||
326 | if (!pdata || !pdata->priv || !pdata->pdev || !cfg) | |
327 | return -EINVAL; | |
328 | ||
329 | if (pixelformat != SH_MOBILE_MERAM_PF_NV && | |
3fedd2ac | 330 | pixelformat != SH_MOBILE_MERAM_PF_NV24 && |
7caa4342 DHG |
331 | pixelformat != SH_MOBILE_MERAM_PF_RGB) |
332 | return -EINVAL; | |
333 | ||
334 | priv = pdata->priv; | |
335 | pdev = pdata->pdev; | |
336 | ||
337 | dev_dbg(&pdev->dev, "registering %dx%d (%s) (y=%08lx, c=%08lx)", | |
338 | xres, yres, (!pixelformat) ? "yuv" : "rgb", | |
339 | base_addr_y, base_addr_c); | |
340 | ||
341 | mutex_lock(&priv->lock); | |
342 | ||
343 | /* we can't handle wider than 8192px */ | |
344 | if (xres > 8192) { | |
345 | dev_err(&pdev->dev, "width exceeding the limit (> 8192)."); | |
346 | error = -EINVAL; | |
347 | goto err; | |
348 | } | |
349 | ||
350 | if (priv->used_meram_cache_regions + 2 > SH_MOBILE_MERAM_ICB_NUM) { | |
351 | dev_err(&pdev->dev, "no more ICB available."); | |
352 | error = -EINVAL; | |
353 | goto err; | |
354 | } | |
355 | ||
356 | /* do we have at least one ICB config? */ | |
357 | if (cfg->icb[0].marker_icb < 0 || cfg->icb[0].cache_icb < 0) { | |
358 | dev_err(&pdev->dev, "at least one ICB is required."); | |
359 | error = -EINVAL; | |
360 | goto err; | |
361 | } | |
362 | ||
363 | /* make sure that there's no overlaps */ | |
364 | if (meram_check_overlap(priv, &cfg->icb[0])) { | |
365 | dev_err(&pdev->dev, "conflicting config detected."); | |
366 | error = -EINVAL; | |
367 | goto err; | |
368 | } | |
369 | n = 1; | |
370 | ||
371 | /* do the same if we have the second ICB set */ | |
372 | if (cfg->icb[1].marker_icb >= 0 && cfg->icb[1].cache_icb >= 0) { | |
373 | if (meram_check_overlap(priv, &cfg->icb[1])) { | |
374 | dev_err(&pdev->dev, "conflicting config detected."); | |
375 | error = -EINVAL; | |
376 | goto err; | |
377 | } | |
378 | n = 2; | |
379 | } | |
380 | ||
3fedd2ac | 381 | if (is_nvcolor(pixelformat) && n != 2) { |
7caa4342 DHG |
382 | dev_err(&pdev->dev, "requires two ICB sets for planar Y/C."); |
383 | error = -EINVAL; | |
384 | goto err; | |
385 | } | |
386 | ||
387 | /* we now register the ICB */ | |
388 | cfg->pixelformat = pixelformat; | |
389 | meram_mark(priv, &cfg->icb[0]); | |
3fedd2ac | 390 | if (is_nvcolor(pixelformat)) |
7caa4342 DHG |
391 | meram_mark(priv, &cfg->icb[1]); |
392 | ||
393 | /* initialize MERAM */ | |
394 | meram_init(priv, &cfg->icb[0], xres, yres, &out_pitch); | |
395 | *pitch = out_pitch; | |
396 | if (pixelformat == SH_MOBILE_MERAM_PF_NV) | |
397 | meram_init(priv, &cfg->icb[1], xres, (yres + 1) / 2, | |
398 | &out_pitch); | |
3fedd2ac DHG |
399 | else if (pixelformat == SH_MOBILE_MERAM_PF_NV24) |
400 | meram_init(priv, &cfg->icb[1], 2 * xres, (yres + 1) / 2, | |
401 | &out_pitch); | |
7caa4342 DHG |
402 | |
403 | cfg->current_reg = 1; | |
404 | meram_set_next_addr(priv, cfg, base_addr_y, base_addr_c); | |
405 | meram_get_next_icb_addr(pdata, cfg, icb_addr_y, icb_addr_c); | |
406 | ||
407 | dev_dbg(&pdev->dev, "registered - can access via y=%08lx, c=%08lx", | |
408 | *icb_addr_y, *icb_addr_c); | |
409 | ||
410 | err: | |
411 | mutex_unlock(&priv->lock); | |
412 | return error; | |
413 | } | |
414 | ||
415 | static int sh_mobile_meram_unregister(struct sh_mobile_meram_info *pdata, | |
416 | struct sh_mobile_meram_cfg *cfg) | |
417 | { | |
418 | struct sh_mobile_meram_priv *priv; | |
419 | ||
420 | if (!pdata || !pdata->priv || !cfg) | |
421 | return -EINVAL; | |
422 | ||
423 | priv = pdata->priv; | |
424 | ||
425 | mutex_lock(&priv->lock); | |
426 | ||
427 | /* deinit & unmark */ | |
3fedd2ac | 428 | if (is_nvcolor(cfg->pixelformat)) { |
7caa4342 DHG |
429 | meram_deinit(priv, &cfg->icb[1]); |
430 | meram_unmark(priv, &cfg->icb[1]); | |
431 | } | |
432 | meram_deinit(priv, &cfg->icb[0]); | |
433 | meram_unmark(priv, &cfg->icb[0]); | |
434 | ||
435 | mutex_unlock(&priv->lock); | |
436 | ||
437 | return 0; | |
438 | } | |
439 | ||
440 | static int sh_mobile_meram_update(struct sh_mobile_meram_info *pdata, | |
441 | struct sh_mobile_meram_cfg *cfg, | |
442 | unsigned long base_addr_y, | |
443 | unsigned long base_addr_c, | |
444 | unsigned long *icb_addr_y, | |
445 | unsigned long *icb_addr_c) | |
446 | { | |
447 | struct sh_mobile_meram_priv *priv; | |
448 | ||
449 | if (!pdata || !pdata->priv || !cfg) | |
450 | return -EINVAL; | |
451 | ||
452 | priv = pdata->priv; | |
453 | ||
454 | mutex_lock(&priv->lock); | |
455 | ||
456 | meram_set_next_addr(priv, cfg, base_addr_y, base_addr_c); | |
457 | meram_get_next_icb_addr(pdata, cfg, icb_addr_y, icb_addr_c); | |
458 | ||
459 | mutex_unlock(&priv->lock); | |
460 | ||
461 | return 0; | |
462 | } | |
463 | ||
464 | static struct sh_mobile_meram_ops sh_mobile_meram_ops = { | |
465 | .module = THIS_MODULE, | |
466 | .meram_register = sh_mobile_meram_register, | |
467 | .meram_unregister = sh_mobile_meram_unregister, | |
468 | .meram_update = sh_mobile_meram_update, | |
469 | }; | |
470 | ||
471 | /* | |
472 | * initialize MERAM | |
473 | */ | |
474 | ||
475 | static int sh_mobile_meram_remove(struct platform_device *pdev); | |
476 | ||
477 | static int __devinit sh_mobile_meram_probe(struct platform_device *pdev) | |
478 | { | |
479 | struct sh_mobile_meram_priv *priv; | |
480 | struct sh_mobile_meram_info *pdata = pdev->dev.platform_data; | |
481 | struct resource *res; | |
482 | int error; | |
483 | ||
484 | if (!pdata) { | |
485 | dev_err(&pdev->dev, "no platform data defined\n"); | |
486 | return -EINVAL; | |
487 | } | |
488 | ||
489 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
490 | if (!res) { | |
491 | dev_err(&pdev->dev, "cannot get platform resources\n"); | |
492 | return -ENOENT; | |
493 | } | |
494 | ||
495 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
496 | if (!priv) { | |
497 | dev_err(&pdev->dev, "cannot allocate device data\n"); | |
498 | return -ENOMEM; | |
499 | } | |
500 | ||
501 | platform_set_drvdata(pdev, priv); | |
502 | ||
503 | /* initialize private data */ | |
504 | mutex_init(&priv->lock); | |
505 | priv->base = ioremap_nocache(res->start, resource_size(res)); | |
506 | if (!priv->base) { | |
507 | dev_err(&pdev->dev, "ioremap failed\n"); | |
508 | error = -EFAULT; | |
509 | goto err; | |
510 | } | |
511 | pdata->ops = &sh_mobile_meram_ops; | |
512 | pdata->priv = priv; | |
513 | pdata->pdev = pdev; | |
514 | ||
515 | /* initialize ICB addressing mode */ | |
516 | if (pdata->addr_mode == SH_MOBILE_MERAM_MODE1) | |
517 | meram_write_reg(priv->base, MEVCR1, 1 << 29); | |
518 | ||
17673778 DHG |
519 | pm_runtime_enable(&pdev->dev); |
520 | ||
7caa4342 DHG |
521 | dev_info(&pdev->dev, "sh_mobile_meram initialized."); |
522 | ||
523 | return 0; | |
524 | ||
525 | err: | |
526 | sh_mobile_meram_remove(pdev); | |
527 | ||
528 | return error; | |
529 | } | |
530 | ||
531 | ||
532 | static int sh_mobile_meram_remove(struct platform_device *pdev) | |
533 | { | |
534 | struct sh_mobile_meram_priv *priv = platform_get_drvdata(pdev); | |
535 | ||
17673778 DHG |
536 | pm_runtime_disable(&pdev->dev); |
537 | ||
7caa4342 DHG |
538 | if (priv->base) |
539 | iounmap(priv->base); | |
540 | ||
541 | mutex_destroy(&priv->lock); | |
542 | ||
543 | kfree(priv); | |
544 | ||
545 | return 0; | |
546 | } | |
547 | ||
548 | static struct platform_driver sh_mobile_meram_driver = { | |
549 | .driver = { | |
550 | .name = "sh_mobile_meram", | |
551 | .owner = THIS_MODULE, | |
552 | }, | |
553 | .probe = sh_mobile_meram_probe, | |
554 | .remove = sh_mobile_meram_remove, | |
555 | }; | |
556 | ||
557 | static int __init sh_mobile_meram_init(void) | |
558 | { | |
559 | return platform_driver_register(&sh_mobile_meram_driver); | |
560 | } | |
561 | ||
562 | static void __exit sh_mobile_meram_exit(void) | |
563 | { | |
564 | platform_driver_unregister(&sh_mobile_meram_driver); | |
565 | } | |
566 | ||
567 | module_init(sh_mobile_meram_init); | |
568 | module_exit(sh_mobile_meram_exit); | |
569 | ||
570 | MODULE_DESCRIPTION("SuperH Mobile MERAM driver"); | |
571 | MODULE_AUTHOR("Damian Hobson-Garcia / Takanari Hayama"); | |
572 | MODULE_LICENSE("GPL v2"); |