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c8bef140 CY |
1 | /* linux/arch/arm/mach-s5pv310/clock.c |
2 | * | |
3 | * Copyright (c) 2010 Samsung Electronics Co., Ltd. | |
4 | * http://www.samsung.com/ | |
5 | * | |
6 | * S5PV310 - Clock support | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #include <linux/kernel.h> | |
14 | #include <linux/err.h> | |
15 | #include <linux/io.h> | |
16 | ||
17 | #include <plat/cpu-freq.h> | |
18 | #include <plat/clock.h> | |
19 | #include <plat/cpu.h> | |
20 | #include <plat/pll.h> | |
21 | #include <plat/s5p-clock.h> | |
22 | #include <plat/clock-clksrc.h> | |
23 | ||
24 | #include <mach/map.h> | |
25 | #include <mach/regs-clock.h> | |
26 | ||
27 | static struct clk clk_sclk_hdmi27m = { | |
28 | .name = "sclk_hdmi27m", | |
29 | .id = -1, | |
30 | .rate = 27000000, | |
31 | }; | |
32 | ||
33 | /* Core list of CMU_CPU side */ | |
34 | ||
35 | static struct clksrc_clk clk_mout_apll = { | |
36 | .clk = { | |
37 | .name = "mout_apll", | |
38 | .id = -1, | |
39 | }, | |
40 | .sources = &clk_src_apll, | |
41 | .reg_src = { .reg = S5P_CLKSRC_CPU, .shift = 0, .size = 1 }, | |
42 | .reg_div = { .reg = S5P_CLKDIV_CPU, .shift = 24, .size = 3 }, | |
43 | }; | |
44 | ||
45 | static struct clksrc_clk clk_mout_epll = { | |
46 | .clk = { | |
47 | .name = "mout_epll", | |
48 | .id = -1, | |
49 | }, | |
50 | .sources = &clk_src_epll, | |
51 | .reg_src = { .reg = S5P_CLKSRC_TOP0, .shift = 4, .size = 1 }, | |
52 | }; | |
53 | ||
54 | static struct clksrc_clk clk_mout_mpll = { | |
55 | .clk = { | |
56 | .name = "mout_mpll", | |
57 | .id = -1, | |
58 | }, | |
59 | .sources = &clk_src_mpll, | |
60 | .reg_src = { .reg = S5P_CLKSRC_CPU, .shift = 8, .size = 1 }, | |
61 | }; | |
62 | ||
63 | static struct clk *clkset_moutcore_list[] = { | |
64 | [0] = &clk_mout_apll.clk, | |
65 | [1] = &clk_mout_mpll.clk, | |
66 | }; | |
67 | ||
68 | static struct clksrc_sources clkset_moutcore = { | |
69 | .sources = clkset_moutcore_list, | |
70 | .nr_sources = ARRAY_SIZE(clkset_moutcore_list), | |
71 | }; | |
72 | ||
73 | static struct clksrc_clk clk_moutcore = { | |
74 | .clk = { | |
75 | .name = "moutcore", | |
76 | .id = -1, | |
77 | }, | |
78 | .sources = &clkset_moutcore, | |
79 | .reg_src = { .reg = S5P_CLKSRC_CPU, .shift = 16, .size = 1 }, | |
80 | }; | |
81 | ||
82 | static struct clksrc_clk clk_coreclk = { | |
83 | .clk = { | |
84 | .name = "core_clk", | |
85 | .id = -1, | |
86 | .parent = &clk_moutcore.clk, | |
87 | }, | |
88 | .reg_div = { .reg = S5P_CLKDIV_CPU, .shift = 0, .size = 3 }, | |
89 | }; | |
90 | ||
91 | static struct clksrc_clk clk_armclk = { | |
92 | .clk = { | |
93 | .name = "armclk", | |
94 | .id = -1, | |
95 | .parent = &clk_coreclk.clk, | |
96 | }, | |
97 | }; | |
98 | ||
99 | static struct clksrc_clk clk_aclk_corem0 = { | |
100 | .clk = { | |
101 | .name = "aclk_corem0", | |
102 | .id = -1, | |
103 | .parent = &clk_coreclk.clk, | |
104 | }, | |
105 | .reg_div = { .reg = S5P_CLKDIV_CPU, .shift = 4, .size = 3 }, | |
106 | }; | |
107 | ||
108 | static struct clksrc_clk clk_aclk_cores = { | |
109 | .clk = { | |
110 | .name = "aclk_cores", | |
111 | .id = -1, | |
112 | .parent = &clk_coreclk.clk, | |
113 | }, | |
114 | .reg_div = { .reg = S5P_CLKDIV_CPU, .shift = 4, .size = 3 }, | |
115 | }; | |
116 | ||
117 | static struct clksrc_clk clk_aclk_corem1 = { | |
118 | .clk = { | |
119 | .name = "aclk_corem1", | |
120 | .id = -1, | |
121 | .parent = &clk_coreclk.clk, | |
122 | }, | |
123 | .reg_div = { .reg = S5P_CLKDIV_CPU, .shift = 8, .size = 3 }, | |
124 | }; | |
125 | ||
126 | static struct clksrc_clk clk_periphclk = { | |
127 | .clk = { | |
128 | .name = "periphclk", | |
129 | .id = -1, | |
130 | .parent = &clk_coreclk.clk, | |
131 | }, | |
132 | .reg_div = { .reg = S5P_CLKDIV_CPU, .shift = 12, .size = 3 }, | |
133 | }; | |
134 | ||
135 | static struct clksrc_clk clk_atclk = { | |
136 | .clk = { | |
137 | .name = "atclk", | |
138 | .id = -1, | |
139 | .parent = &clk_moutcore.clk, | |
140 | }, | |
141 | .reg_div = { .reg = S5P_CLKDIV_CPU, .shift = 16, .size = 3 }, | |
142 | }; | |
143 | ||
144 | static struct clksrc_clk clk_pclk_dbg = { | |
145 | .clk = { | |
146 | .name = "pclk_dbg", | |
147 | .id = -1, | |
148 | .parent = &clk_atclk.clk, | |
149 | }, | |
150 | .reg_div = { .reg = S5P_CLKDIV_CPU, .shift = 20, .size = 3 }, | |
151 | }; | |
152 | ||
153 | /* Core list of CMU_CORE side */ | |
154 | ||
155 | static struct clk *clkset_corebus_list[] = { | |
156 | [0] = &clk_mout_mpll.clk, | |
157 | [1] = &clk_mout_apll.clk, | |
158 | }; | |
159 | ||
160 | static struct clksrc_sources clkset_mout_corebus = { | |
161 | .sources = clkset_corebus_list, | |
162 | .nr_sources = ARRAY_SIZE(clkset_corebus_list), | |
163 | }; | |
164 | ||
165 | static struct clksrc_clk clk_mout_corebus = { | |
166 | .clk = { | |
167 | .name = "mout_corebus", | |
168 | .id = -1, | |
169 | }, | |
170 | .sources = &clkset_mout_corebus, | |
171 | .reg_src = { .reg = S5P_CLKSRC_CORE, .shift = 4, .size = 1 }, | |
172 | }; | |
173 | ||
174 | static struct clksrc_clk clk_sclk_dmc = { | |
175 | .clk = { | |
176 | .name = "sclk_dmc", | |
177 | .id = -1, | |
178 | .parent = &clk_mout_corebus.clk, | |
179 | }, | |
180 | .reg_div = { .reg = S5P_CLKDIV_CORE0, .shift = 12, .size = 3 }, | |
181 | }; | |
182 | ||
183 | static struct clksrc_clk clk_aclk_cored = { | |
184 | .clk = { | |
185 | .name = "aclk_cored", | |
186 | .id = -1, | |
187 | .parent = &clk_sclk_dmc.clk, | |
188 | }, | |
189 | .reg_div = { .reg = S5P_CLKDIV_CORE0, .shift = 16, .size = 3 }, | |
190 | }; | |
191 | ||
192 | static struct clksrc_clk clk_aclk_corep = { | |
193 | .clk = { | |
194 | .name = "aclk_corep", | |
195 | .id = -1, | |
196 | .parent = &clk_aclk_cored.clk, | |
197 | }, | |
198 | .reg_div = { .reg = S5P_CLKDIV_CORE0, .shift = 20, .size = 3 }, | |
199 | }; | |
200 | ||
201 | static struct clksrc_clk clk_aclk_acp = { | |
202 | .clk = { | |
203 | .name = "aclk_acp", | |
204 | .id = -1, | |
205 | .parent = &clk_mout_corebus.clk, | |
206 | }, | |
207 | .reg_div = { .reg = S5P_CLKDIV_CORE0, .shift = 0, .size = 3 }, | |
208 | }; | |
209 | ||
210 | static struct clksrc_clk clk_pclk_acp = { | |
211 | .clk = { | |
212 | .name = "pclk_acp", | |
213 | .id = -1, | |
214 | .parent = &clk_aclk_acp.clk, | |
215 | }, | |
216 | .reg_div = { .reg = S5P_CLKDIV_CORE0, .shift = 4, .size = 3 }, | |
217 | }; | |
218 | ||
219 | /* Core list of CMU_TOP side */ | |
220 | ||
221 | static struct clk *clkset_aclk_top_list[] = { | |
222 | [0] = &clk_mout_mpll.clk, | |
223 | [1] = &clk_mout_apll.clk, | |
224 | }; | |
225 | ||
226 | static struct clksrc_sources clkset_aclk_200 = { | |
227 | .sources = clkset_aclk_top_list, | |
228 | .nr_sources = ARRAY_SIZE(clkset_aclk_top_list), | |
229 | }; | |
230 | ||
231 | static struct clksrc_clk clk_aclk_200 = { | |
232 | .clk = { | |
233 | .name = "aclk_200", | |
234 | .id = -1, | |
235 | }, | |
236 | .sources = &clkset_aclk_200, | |
237 | .reg_src = { .reg = S5P_CLKSRC_TOP0, .shift = 12, .size = 1 }, | |
238 | .reg_div = { .reg = S5P_CLKDIV_TOP, .shift = 0, .size = 3 }, | |
239 | }; | |
240 | ||
241 | static struct clksrc_sources clkset_aclk_100 = { | |
242 | .sources = clkset_aclk_top_list, | |
243 | .nr_sources = ARRAY_SIZE(clkset_aclk_top_list), | |
244 | }; | |
245 | ||
246 | static struct clksrc_clk clk_aclk_100 = { | |
247 | .clk = { | |
248 | .name = "aclk_100", | |
249 | .id = -1, | |
250 | }, | |
251 | .sources = &clkset_aclk_100, | |
252 | .reg_src = { .reg = S5P_CLKSRC_TOP0, .shift = 16, .size = 1 }, | |
253 | .reg_div = { .reg = S5P_CLKDIV_TOP, .shift = 4, .size = 4 }, | |
254 | }; | |
255 | ||
256 | static struct clksrc_sources clkset_aclk_160 = { | |
257 | .sources = clkset_aclk_top_list, | |
258 | .nr_sources = ARRAY_SIZE(clkset_aclk_top_list), | |
259 | }; | |
260 | ||
261 | static struct clksrc_clk clk_aclk_160 = { | |
262 | .clk = { | |
263 | .name = "aclk_160", | |
264 | .id = -1, | |
265 | }, | |
266 | .sources = &clkset_aclk_160, | |
267 | .reg_src = { .reg = S5P_CLKSRC_TOP0, .shift = 20, .size = 1 }, | |
268 | .reg_div = { .reg = S5P_CLKDIV_TOP, .shift = 8, .size = 3 }, | |
269 | }; | |
270 | ||
271 | static struct clksrc_sources clkset_aclk_133 = { | |
272 | .sources = clkset_aclk_top_list, | |
273 | .nr_sources = ARRAY_SIZE(clkset_aclk_top_list), | |
274 | }; | |
275 | ||
276 | static struct clksrc_clk clk_aclk_133 = { | |
277 | .clk = { | |
278 | .name = "aclk_133", | |
279 | .id = -1, | |
280 | }, | |
281 | .sources = &clkset_aclk_133, | |
282 | .reg_src = { .reg = S5P_CLKSRC_TOP0, .shift = 24, .size = 1 }, | |
283 | .reg_div = { .reg = S5P_CLKDIV_TOP, .shift = 12, .size = 3 }, | |
284 | }; | |
285 | ||
286 | static struct clk *clkset_vpllsrc_list[] = { | |
287 | [0] = &clk_fin_vpll, | |
288 | [1] = &clk_sclk_hdmi27m, | |
289 | }; | |
290 | ||
291 | static struct clksrc_sources clkset_vpllsrc = { | |
292 | .sources = clkset_vpllsrc_list, | |
293 | .nr_sources = ARRAY_SIZE(clkset_vpllsrc_list), | |
294 | }; | |
295 | ||
296 | static struct clksrc_clk clk_vpllsrc = { | |
297 | .clk = { | |
298 | .name = "vpll_src", | |
299 | .id = -1, | |
300 | }, | |
301 | .sources = &clkset_vpllsrc, | |
302 | .reg_src = { .reg = S5P_CLKSRC_TOP1, .shift = 0, .size = 1 }, | |
303 | }; | |
304 | ||
305 | static struct clk *clkset_sclk_vpll_list[] = { | |
306 | [0] = &clk_vpllsrc.clk, | |
307 | [1] = &clk_fout_vpll, | |
308 | }; | |
309 | ||
310 | static struct clksrc_sources clkset_sclk_vpll = { | |
311 | .sources = clkset_sclk_vpll_list, | |
312 | .nr_sources = ARRAY_SIZE(clkset_sclk_vpll_list), | |
313 | }; | |
314 | ||
315 | static struct clksrc_clk clk_sclk_vpll = { | |
316 | .clk = { | |
317 | .name = "sclk_vpll", | |
318 | .id = -1, | |
319 | }, | |
320 | .sources = &clkset_sclk_vpll, | |
321 | .reg_src = { .reg = S5P_CLKSRC_TOP0, .shift = 8, .size = 1 }, | |
322 | }; | |
323 | ||
324 | static int s5pv310_clk_ip_peril_ctrl(struct clk *clk, int enable) | |
325 | { | |
326 | return s5p_gatectrl(S5P_CLKGATE_IP_PERIL, clk, enable); | |
327 | } | |
328 | ||
329 | static struct clk init_clocks_disable[] = { | |
330 | { | |
331 | .name = "timers", | |
332 | .id = -1, | |
333 | .parent = &clk_aclk_100.clk, | |
334 | .enable = s5pv310_clk_ip_peril_ctrl, | |
335 | .ctrlbit = (1<<24), | |
336 | } | |
337 | }; | |
338 | ||
339 | static struct clk init_clocks[] = { | |
340 | /* Nothing here yet */ | |
341 | }; | |
342 | ||
343 | static struct clk *clkset_group_list[] = { | |
344 | [0] = &clk_ext_xtal_mux, | |
345 | [1] = &clk_xusbxti, | |
346 | [2] = &clk_sclk_hdmi27m, | |
347 | [6] = &clk_mout_mpll.clk, | |
348 | [7] = &clk_mout_epll.clk, | |
349 | [8] = &clk_sclk_vpll.clk, | |
350 | }; | |
351 | ||
352 | static struct clksrc_sources clkset_group = { | |
353 | .sources = clkset_group_list, | |
354 | .nr_sources = ARRAY_SIZE(clkset_group_list), | |
355 | }; | |
356 | ||
357 | static struct clksrc_clk clksrcs[] = { | |
358 | { | |
359 | .clk = { | |
360 | .name = "uclk1", | |
361 | .id = 0, | |
362 | .ctrlbit = (1 << 0), | |
363 | .enable = s5pv310_clk_ip_peril_ctrl, | |
364 | }, | |
365 | .sources = &clkset_group, | |
366 | .reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 0, .size = 4 }, | |
367 | .reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 0, .size = 4 }, | |
368 | }, { | |
369 | .clk = { | |
370 | .name = "uclk1", | |
371 | .id = 1, | |
372 | .enable = s5pv310_clk_ip_peril_ctrl, | |
373 | .ctrlbit = (1 << 1), | |
374 | }, | |
375 | .sources = &clkset_group, | |
376 | .reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 4, .size = 4 }, | |
377 | .reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 4, .size = 4 }, | |
378 | }, { | |
379 | .clk = { | |
380 | .name = "uclk1", | |
381 | .id = 2, | |
382 | .enable = s5pv310_clk_ip_peril_ctrl, | |
383 | .ctrlbit = (1 << 2), | |
384 | }, | |
385 | .sources = &clkset_group, | |
386 | .reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 8, .size = 4 }, | |
387 | .reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 8, .size = 4 }, | |
388 | }, { | |
389 | .clk = { | |
390 | .name = "uclk1", | |
391 | .id = 3, | |
392 | .enable = s5pv310_clk_ip_peril_ctrl, | |
393 | .ctrlbit = (1 << 3), | |
394 | }, | |
395 | .sources = &clkset_group, | |
396 | .reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 12, .size = 4 }, | |
397 | .reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 12, .size = 4 }, | |
398 | }, { | |
399 | .clk = { | |
400 | .name = "sclk_pwm", | |
401 | .id = -1, | |
402 | .enable = s5pv310_clk_ip_peril_ctrl, | |
403 | .ctrlbit = (1 << 24), | |
404 | }, | |
405 | .sources = &clkset_group, | |
406 | .reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 24, .size = 4 }, | |
407 | .reg_div = { .reg = S5P_CLKDIV_PERIL3, .shift = 0, .size = 4 }, | |
408 | }, | |
409 | }; | |
410 | ||
411 | /* Clock initialization code */ | |
412 | static struct clksrc_clk *sysclks[] = { | |
413 | &clk_mout_apll, | |
414 | &clk_mout_epll, | |
415 | &clk_mout_mpll, | |
416 | &clk_moutcore, | |
417 | &clk_coreclk, | |
418 | &clk_armclk, | |
419 | &clk_aclk_corem0, | |
420 | &clk_aclk_cores, | |
421 | &clk_aclk_corem1, | |
422 | &clk_periphclk, | |
423 | &clk_atclk, | |
424 | &clk_pclk_dbg, | |
425 | &clk_mout_corebus, | |
426 | &clk_sclk_dmc, | |
427 | &clk_aclk_cored, | |
428 | &clk_aclk_corep, | |
429 | &clk_aclk_acp, | |
430 | &clk_pclk_acp, | |
431 | &clk_vpllsrc, | |
432 | &clk_sclk_vpll, | |
433 | &clk_aclk_200, | |
434 | &clk_aclk_100, | |
435 | &clk_aclk_160, | |
436 | &clk_aclk_133, | |
437 | }; | |
438 | ||
439 | void __init_or_cpufreq s5pv310_setup_clocks(void) | |
440 | { | |
441 | struct clk *xtal_clk; | |
442 | unsigned long apll; | |
443 | unsigned long mpll; | |
444 | unsigned long epll; | |
445 | unsigned long vpll; | |
446 | unsigned long vpllsrc; | |
447 | unsigned long xtal; | |
448 | unsigned long armclk; | |
449 | unsigned long aclk_corem0; | |
450 | unsigned long aclk_cores; | |
451 | unsigned long aclk_corem1; | |
452 | unsigned long periphclk; | |
453 | unsigned long sclk_dmc; | |
454 | unsigned long aclk_cored; | |
455 | unsigned long aclk_corep; | |
456 | unsigned long aclk_acp; | |
457 | unsigned long pclk_acp; | |
458 | unsigned int ptr; | |
459 | ||
460 | printk(KERN_DEBUG "%s: registering clocks\n", __func__); | |
461 | ||
462 | xtal_clk = clk_get(NULL, "xtal"); | |
463 | BUG_ON(IS_ERR(xtal_clk)); | |
464 | ||
465 | xtal = clk_get_rate(xtal_clk); | |
466 | clk_put(xtal_clk); | |
467 | ||
468 | printk(KERN_DEBUG "%s: xtal is %ld\n", __func__, xtal); | |
469 | ||
470 | apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON0), pll_4508); | |
471 | mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON0), pll_4508); | |
472 | epll = s5p_get_pll46xx(xtal, __raw_readl(S5P_EPLL_CON0), | |
4d235f79 | 473 | __raw_readl(S5P_EPLL_CON1), pll_4600); |
c8bef140 CY |
474 | |
475 | vpllsrc = clk_get_rate(&clk_vpllsrc.clk); | |
476 | vpll = s5p_get_pll46xx(vpllsrc, __raw_readl(S5P_VPLL_CON0), | |
4d235f79 | 477 | __raw_readl(S5P_VPLL_CON1), pll_4650); |
c8bef140 CY |
478 | |
479 | clk_fout_apll.rate = apll; | |
480 | clk_fout_mpll.rate = mpll; | |
481 | clk_fout_epll.rate = epll; | |
482 | clk_fout_vpll.rate = vpll; | |
483 | ||
484 | printk(KERN_INFO "S5PV310: PLL settings, A=%ld, M=%ld, E=%ld V=%ld", | |
485 | apll, mpll, epll, vpll); | |
486 | ||
487 | armclk = clk_get_rate(&clk_armclk.clk); | |
488 | aclk_corem0 = clk_get_rate(&clk_aclk_corem0.clk); | |
489 | aclk_cores = clk_get_rate(&clk_aclk_cores.clk); | |
490 | aclk_corem1 = clk_get_rate(&clk_aclk_corem1.clk); | |
491 | periphclk = clk_get_rate(&clk_periphclk.clk); | |
492 | sclk_dmc = clk_get_rate(&clk_sclk_dmc.clk); | |
493 | aclk_cored = clk_get_rate(&clk_aclk_cored.clk); | |
494 | aclk_corep = clk_get_rate(&clk_aclk_corep.clk); | |
495 | aclk_acp = clk_get_rate(&clk_aclk_acp.clk); | |
496 | pclk_acp = clk_get_rate(&clk_pclk_acp.clk); | |
497 | ||
498 | printk(KERN_INFO "S5PV310: ARMCLK=%ld, COREM0=%ld, CORES=%ld\n" | |
499 | "COREM1=%ld, PERI=%ld, DMC=%ld, CORED=%ld\n" | |
500 | "COREP=%ld, ACLK_ACP=%ld, PCLK_ACP=%ld", | |
501 | armclk, aclk_corem0, aclk_cores, aclk_corem1, | |
502 | periphclk, sclk_dmc, aclk_cored, aclk_corep, | |
503 | aclk_acp, pclk_acp); | |
504 | ||
505 | clk_f.rate = armclk; | |
506 | clk_h.rate = sclk_dmc; | |
507 | clk_p.rate = periphclk; | |
508 | ||
509 | for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++) | |
510 | s3c_set_clksrc(&clksrcs[ptr], true); | |
511 | } | |
512 | ||
513 | static struct clk *clks[] __initdata = { | |
514 | /* Nothing here yet */ | |
515 | }; | |
516 | ||
517 | void __init s5pv310_register_clocks(void) | |
518 | { | |
519 | struct clk *clkp; | |
520 | int ret; | |
521 | int ptr; | |
522 | ||
523 | ret = s3c24xx_register_clocks(clks, ARRAY_SIZE(clks)); | |
524 | if (ret > 0) | |
525 | printk(KERN_ERR "Failed to register %u clocks\n", ret); | |
526 | ||
527 | for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++) | |
528 | s3c_register_clksrc(sysclks[ptr], 1); | |
529 | ||
530 | s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs)); | |
531 | s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks)); | |
532 | ||
533 | clkp = init_clocks_disable; | |
534 | for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) { | |
535 | ret = s3c24xx_register_clock(clkp); | |
536 | if (ret < 0) { | |
537 | printk(KERN_ERR "Failed to register clock %s (%d)\n", | |
538 | clkp->name, ret); | |
539 | } | |
540 | (clkp->enable)(clkp, 0); | |
541 | } | |
542 | ||
543 | s3c_pwmclk_init(); | |
544 | } |