Commit | Line | Data |
---|---|---|
3cc72986 MB |
1 | /* |
2 | * Arizona core driver | |
3 | * | |
4 | * Copyright 2012 Wolfson Microelectronics plc | |
5 | * | |
6 | * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> | |
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/delay.h> | |
59db9691 | 14 | #include <linux/err.h> |
3cc72986 MB |
15 | #include <linux/gpio.h> |
16 | #include <linux/interrupt.h> | |
17 | #include <linux/mfd/core.h> | |
18 | #include <linux/module.h> | |
d781009c MB |
19 | #include <linux/of.h> |
20 | #include <linux/of_device.h> | |
21 | #include <linux/of_gpio.h> | |
3cc72986 MB |
22 | #include <linux/pm_runtime.h> |
23 | #include <linux/regmap.h> | |
24 | #include <linux/regulator/consumer.h> | |
5927467d | 25 | #include <linux/regulator/machine.h> |
3cc72986 MB |
26 | #include <linux/slab.h> |
27 | ||
28 | #include <linux/mfd/arizona/core.h> | |
29 | #include <linux/mfd/arizona/registers.h> | |
30 | ||
31 | #include "arizona.h" | |
32 | ||
33 | static const char *wm5102_core_supplies[] = { | |
34 | "AVDD", | |
35 | "DBVDD1", | |
3cc72986 MB |
36 | }; |
37 | ||
38 | int arizona_clk32k_enable(struct arizona *arizona) | |
39 | { | |
40 | int ret = 0; | |
41 | ||
42 | mutex_lock(&arizona->clk_lock); | |
43 | ||
44 | arizona->clk32k_ref++; | |
45 | ||
247fa192 MB |
46 | if (arizona->clk32k_ref == 1) { |
47 | switch (arizona->pdata.clk32k_src) { | |
48 | case ARIZONA_32KZ_MCLK1: | |
49 | ret = pm_runtime_get_sync(arizona->dev); | |
50 | if (ret != 0) | |
51 | goto out; | |
52 | break; | |
53 | } | |
54 | ||
3cc72986 MB |
55 | ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1, |
56 | ARIZONA_CLK_32K_ENA, | |
57 | ARIZONA_CLK_32K_ENA); | |
247fa192 | 58 | } |
3cc72986 | 59 | |
247fa192 | 60 | out: |
3cc72986 MB |
61 | if (ret != 0) |
62 | arizona->clk32k_ref--; | |
63 | ||
64 | mutex_unlock(&arizona->clk_lock); | |
65 | ||
66 | return ret; | |
67 | } | |
68 | EXPORT_SYMBOL_GPL(arizona_clk32k_enable); | |
69 | ||
70 | int arizona_clk32k_disable(struct arizona *arizona) | |
71 | { | |
72 | int ret = 0; | |
73 | ||
74 | mutex_lock(&arizona->clk_lock); | |
75 | ||
76 | BUG_ON(arizona->clk32k_ref <= 0); | |
77 | ||
78 | arizona->clk32k_ref--; | |
79 | ||
247fa192 | 80 | if (arizona->clk32k_ref == 0) { |
3cc72986 MB |
81 | regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1, |
82 | ARIZONA_CLK_32K_ENA, 0); | |
83 | ||
247fa192 MB |
84 | switch (arizona->pdata.clk32k_src) { |
85 | case ARIZONA_32KZ_MCLK1: | |
86 | pm_runtime_put_sync(arizona->dev); | |
87 | break; | |
88 | } | |
89 | } | |
90 | ||
3cc72986 MB |
91 | mutex_unlock(&arizona->clk_lock); |
92 | ||
93 | return ret; | |
94 | } | |
95 | EXPORT_SYMBOL_GPL(arizona_clk32k_disable); | |
96 | ||
97 | static irqreturn_t arizona_clkgen_err(int irq, void *data) | |
98 | { | |
99 | struct arizona *arizona = data; | |
100 | ||
101 | dev_err(arizona->dev, "CLKGEN error\n"); | |
102 | ||
103 | return IRQ_HANDLED; | |
104 | } | |
105 | ||
106 | static irqreturn_t arizona_underclocked(int irq, void *data) | |
107 | { | |
108 | struct arizona *arizona = data; | |
109 | unsigned int val; | |
110 | int ret; | |
111 | ||
112 | ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8, | |
113 | &val); | |
114 | if (ret != 0) { | |
115 | dev_err(arizona->dev, "Failed to read underclock status: %d\n", | |
116 | ret); | |
117 | return IRQ_NONE; | |
118 | } | |
119 | ||
3cc72986 MB |
120 | if (val & ARIZONA_AIF3_UNDERCLOCKED_STS) |
121 | dev_err(arizona->dev, "AIF3 underclocked\n"); | |
122 | if (val & ARIZONA_AIF2_UNDERCLOCKED_STS) | |
3ebef34d CK |
123 | dev_err(arizona->dev, "AIF2 underclocked\n"); |
124 | if (val & ARIZONA_AIF1_UNDERCLOCKED_STS) | |
3cc72986 MB |
125 | dev_err(arizona->dev, "AIF1 underclocked\n"); |
126 | if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS) | |
127 | dev_err(arizona->dev, "ISRC2 underclocked\n"); | |
128 | if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS) | |
129 | dev_err(arizona->dev, "ISRC1 underclocked\n"); | |
130 | if (val & ARIZONA_FX_UNDERCLOCKED_STS) | |
131 | dev_err(arizona->dev, "FX underclocked\n"); | |
132 | if (val & ARIZONA_ASRC_UNDERCLOCKED_STS) | |
133 | dev_err(arizona->dev, "ASRC underclocked\n"); | |
134 | if (val & ARIZONA_DAC_UNDERCLOCKED_STS) | |
135 | dev_err(arizona->dev, "DAC underclocked\n"); | |
136 | if (val & ARIZONA_ADC_UNDERCLOCKED_STS) | |
137 | dev_err(arizona->dev, "ADC underclocked\n"); | |
138 | if (val & ARIZONA_MIXER_UNDERCLOCKED_STS) | |
648a9880 | 139 | dev_err(arizona->dev, "Mixer dropped sample\n"); |
3cc72986 MB |
140 | |
141 | return IRQ_HANDLED; | |
142 | } | |
143 | ||
144 | static irqreturn_t arizona_overclocked(int irq, void *data) | |
145 | { | |
146 | struct arizona *arizona = data; | |
147 | unsigned int val[2]; | |
148 | int ret; | |
149 | ||
150 | ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6, | |
151 | &val[0], 2); | |
152 | if (ret != 0) { | |
153 | dev_err(arizona->dev, "Failed to read overclock status: %d\n", | |
154 | ret); | |
155 | return IRQ_NONE; | |
156 | } | |
157 | ||
158 | if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS) | |
159 | dev_err(arizona->dev, "PWM overclocked\n"); | |
160 | if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS) | |
161 | dev_err(arizona->dev, "FX core overclocked\n"); | |
162 | if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS) | |
163 | dev_err(arizona->dev, "DAC SYS overclocked\n"); | |
164 | if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS) | |
165 | dev_err(arizona->dev, "DAC WARP overclocked\n"); | |
166 | if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS) | |
167 | dev_err(arizona->dev, "ADC overclocked\n"); | |
168 | if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS) | |
169 | dev_err(arizona->dev, "Mixer overclocked\n"); | |
170 | if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS) | |
171 | dev_err(arizona->dev, "AIF3 overclocked\n"); | |
172 | if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS) | |
173 | dev_err(arizona->dev, "AIF2 overclocked\n"); | |
174 | if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS) | |
175 | dev_err(arizona->dev, "AIF1 overclocked\n"); | |
176 | if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS) | |
177 | dev_err(arizona->dev, "Pad control overclocked\n"); | |
178 | ||
179 | if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS) | |
180 | dev_err(arizona->dev, "Slimbus subsystem overclocked\n"); | |
181 | if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS) | |
182 | dev_err(arizona->dev, "Slimbus async overclocked\n"); | |
183 | if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS) | |
184 | dev_err(arizona->dev, "Slimbus sync overclocked\n"); | |
185 | if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS) | |
186 | dev_err(arizona->dev, "ASRC async system overclocked\n"); | |
187 | if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS) | |
188 | dev_err(arizona->dev, "ASRC async WARP overclocked\n"); | |
189 | if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS) | |
190 | dev_err(arizona->dev, "ASRC sync system overclocked\n"); | |
191 | if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS) | |
192 | dev_err(arizona->dev, "ASRC sync WARP overclocked\n"); | |
193 | if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS) | |
194 | dev_err(arizona->dev, "DSP1 overclocked\n"); | |
195 | if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS) | |
196 | dev_err(arizona->dev, "ISRC2 overclocked\n"); | |
197 | if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS) | |
198 | dev_err(arizona->dev, "ISRC1 overclocked\n"); | |
199 | ||
200 | return IRQ_HANDLED; | |
201 | } | |
202 | ||
9d53dfdc CK |
203 | static int arizona_poll_reg(struct arizona *arizona, |
204 | int timeout, unsigned int reg, | |
205 | unsigned int mask, unsigned int target) | |
3cc72986 | 206 | { |
9d53dfdc | 207 | unsigned int val = 0; |
3cc72986 MB |
208 | int ret, i; |
209 | ||
9d53dfdc CK |
210 | for (i = 0; i < timeout; i++) { |
211 | ret = regmap_read(arizona->regmap, reg, &val); | |
3cc72986 | 212 | if (ret != 0) { |
9d53dfdc CK |
213 | dev_err(arizona->dev, "Failed to read reg %u: %d\n", |
214 | reg, ret); | |
cfe775ce | 215 | continue; |
3cc72986 MB |
216 | } |
217 | ||
9d53dfdc CK |
218 | if ((val & mask) == target) |
219 | return 0; | |
220 | ||
221 | msleep(1); | |
3cc72986 MB |
222 | } |
223 | ||
9d53dfdc CK |
224 | dev_err(arizona->dev, "Polling reg %u timed out: %x\n", reg, val); |
225 | return -ETIMEDOUT; | |
226 | } | |
227 | ||
228 | static int arizona_wait_for_boot(struct arizona *arizona) | |
229 | { | |
230 | int ret; | |
231 | ||
232 | /* | |
233 | * We can't use an interrupt as we need to runtime resume to do so, | |
234 | * we won't race with the interrupt handler as it'll be blocked on | |
235 | * runtime resume. | |
236 | */ | |
237 | ret = arizona_poll_reg(arizona, 5, ARIZONA_INTERRUPT_RAW_STATUS_5, | |
238 | ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS); | |
239 | ||
240 | if (!ret) | |
3cc72986 MB |
241 | regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5, |
242 | ARIZONA_BOOT_DONE_STS); | |
3cc72986 MB |
243 | |
244 | pm_runtime_mark_last_busy(arizona->dev); | |
245 | ||
9d53dfdc | 246 | return ret; |
3cc72986 MB |
247 | } |
248 | ||
e80436bb CK |
249 | static int arizona_apply_hardware_patch(struct arizona* arizona) |
250 | { | |
251 | unsigned int fll, sysclk; | |
252 | int ret, err; | |
253 | ||
254 | regcache_cache_bypass(arizona->regmap, true); | |
255 | ||
256 | /* Cache existing FLL and SYSCLK settings */ | |
257 | ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &fll); | |
258 | if (ret != 0) { | |
259 | dev_err(arizona->dev, "Failed to cache FLL settings: %d\n", | |
260 | ret); | |
261 | return ret; | |
262 | } | |
263 | ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, &sysclk); | |
264 | if (ret != 0) { | |
265 | dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n", | |
266 | ret); | |
267 | return ret; | |
268 | } | |
269 | ||
270 | /* Start up SYSCLK using the FLL in free running mode */ | |
271 | ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, | |
272 | ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN); | |
273 | if (ret != 0) { | |
274 | dev_err(arizona->dev, | |
275 | "Failed to start FLL in freerunning mode: %d\n", | |
276 | ret); | |
277 | return ret; | |
278 | } | |
279 | ret = arizona_poll_reg(arizona, 25, ARIZONA_INTERRUPT_RAW_STATUS_5, | |
280 | ARIZONA_FLL1_CLOCK_OK_STS, | |
281 | ARIZONA_FLL1_CLOCK_OK_STS); | |
282 | if (ret != 0) { | |
283 | ret = -ETIMEDOUT; | |
284 | goto err_fll; | |
285 | } | |
286 | ||
287 | ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144); | |
288 | if (ret != 0) { | |
289 | dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret); | |
290 | goto err_fll; | |
291 | } | |
292 | ||
293 | /* Start the write sequencer and wait for it to finish */ | |
294 | ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0, | |
295 | ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160); | |
296 | if (ret != 0) { | |
297 | dev_err(arizona->dev, "Failed to start write sequencer: %d\n", | |
298 | ret); | |
299 | goto err_sysclk; | |
300 | } | |
301 | ret = arizona_poll_reg(arizona, 5, ARIZONA_WRITE_SEQUENCER_CTRL_1, | |
302 | ARIZONA_WSEQ_BUSY, 0); | |
303 | if (ret != 0) { | |
304 | regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0, | |
305 | ARIZONA_WSEQ_ABORT); | |
306 | ret = -ETIMEDOUT; | |
307 | } | |
308 | ||
309 | err_sysclk: | |
310 | err = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, sysclk); | |
311 | if (err != 0) { | |
312 | dev_err(arizona->dev, | |
313 | "Failed to re-apply old SYSCLK settings: %d\n", | |
314 | err); | |
315 | } | |
316 | ||
317 | err_fll: | |
318 | err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, fll); | |
319 | if (err != 0) { | |
320 | dev_err(arizona->dev, | |
321 | "Failed to re-apply old FLL settings: %d\n", | |
322 | err); | |
323 | } | |
324 | ||
325 | regcache_cache_bypass(arizona->regmap, false); | |
326 | ||
327 | if (ret != 0) | |
328 | return ret; | |
329 | else | |
330 | return err; | |
331 | } | |
332 | ||
3cc72986 MB |
333 | #ifdef CONFIG_PM_RUNTIME |
334 | static int arizona_runtime_resume(struct device *dev) | |
335 | { | |
336 | struct arizona *arizona = dev_get_drvdata(dev); | |
337 | int ret; | |
338 | ||
508c8299 MB |
339 | dev_dbg(arizona->dev, "Leaving AoD mode\n"); |
340 | ||
59db9691 MB |
341 | ret = regulator_enable(arizona->dcvdd); |
342 | if (ret != 0) { | |
343 | dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret); | |
344 | return ret; | |
345 | } | |
3cc72986 MB |
346 | |
347 | regcache_cache_only(arizona->regmap, false); | |
348 | ||
4c9bb8bc CK |
349 | switch (arizona->type) { |
350 | case WM5102: | |
5927467d MB |
351 | if (arizona->external_dcvdd) { |
352 | ret = regmap_update_bits(arizona->regmap, | |
353 | ARIZONA_ISOLATION_CONTROL, | |
354 | ARIZONA_ISOLATE_DCVDD1, 0); | |
355 | if (ret != 0) { | |
356 | dev_err(arizona->dev, | |
357 | "Failed to connect DCVDD: %d\n", ret); | |
358 | goto err; | |
359 | } | |
360 | } | |
361 | ||
4c9bb8bc CK |
362 | ret = wm5102_patch(arizona); |
363 | if (ret != 0) { | |
364 | dev_err(arizona->dev, "Failed to apply patch: %d\n", | |
365 | ret); | |
366 | goto err; | |
367 | } | |
e80436bb CK |
368 | |
369 | ret = arizona_apply_hardware_patch(arizona); | |
370 | if (ret != 0) { | |
371 | dev_err(arizona->dev, | |
372 | "Failed to apply hardware patch: %d\n", | |
373 | ret); | |
374 | goto err; | |
375 | } | |
376 | break; | |
377 | default: | |
12bb68ed CK |
378 | ret = arizona_wait_for_boot(arizona); |
379 | if (ret != 0) { | |
380 | goto err; | |
381 | } | |
382 | ||
5927467d MB |
383 | if (arizona->external_dcvdd) { |
384 | ret = regmap_update_bits(arizona->regmap, | |
385 | ARIZONA_ISOLATION_CONTROL, | |
386 | ARIZONA_ISOLATE_DCVDD1, 0); | |
387 | if (ret != 0) { | |
388 | dev_err(arizona->dev, | |
389 | "Failed to connect DCVDD: %d\n", ret); | |
390 | goto err; | |
391 | } | |
392 | } | |
e80436bb | 393 | break; |
4c9bb8bc CK |
394 | } |
395 | ||
d9d03496 CK |
396 | switch (arizona->type) { |
397 | case WM5102: | |
398 | ret = wm5102_patch(arizona); | |
399 | if (ret != 0) { | |
400 | dev_err(arizona->dev, "Failed to apply patch: %d\n", | |
401 | ret); | |
402 | goto err; | |
403 | } | |
404 | default: | |
405 | break; | |
406 | } | |
407 | ||
9270bdf5 MB |
408 | ret = regcache_sync(arizona->regmap); |
409 | if (ret != 0) { | |
410 | dev_err(arizona->dev, "Failed to restore register cache\n"); | |
4816bd1c | 411 | goto err; |
9270bdf5 | 412 | } |
3cc72986 MB |
413 | |
414 | return 0; | |
4816bd1c MB |
415 | |
416 | err: | |
417 | regcache_cache_only(arizona->regmap, true); | |
418 | regulator_disable(arizona->dcvdd); | |
419 | return ret; | |
3cc72986 MB |
420 | } |
421 | ||
422 | static int arizona_runtime_suspend(struct device *dev) | |
423 | { | |
424 | struct arizona *arizona = dev_get_drvdata(dev); | |
5927467d | 425 | int ret; |
3cc72986 | 426 | |
508c8299 MB |
427 | dev_dbg(arizona->dev, "Entering AoD mode\n"); |
428 | ||
5927467d MB |
429 | if (arizona->external_dcvdd) { |
430 | ret = regmap_update_bits(arizona->regmap, | |
431 | ARIZONA_ISOLATION_CONTROL, | |
432 | ARIZONA_ISOLATE_DCVDD1, | |
433 | ARIZONA_ISOLATE_DCVDD1); | |
434 | if (ret != 0) { | |
435 | dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n", | |
436 | ret); | |
437 | return ret; | |
438 | } | |
439 | } | |
440 | ||
59db9691 MB |
441 | regcache_cache_only(arizona->regmap, true); |
442 | regcache_mark_dirty(arizona->regmap); | |
e293e847 | 443 | regulator_disable(arizona->dcvdd); |
3cc72986 MB |
444 | |
445 | return 0; | |
446 | } | |
447 | #endif | |
448 | ||
dc781d0e | 449 | #ifdef CONFIG_PM_SLEEP |
67c99296 MB |
450 | static int arizona_suspend(struct device *dev) |
451 | { | |
452 | struct arizona *arizona = dev_get_drvdata(dev); | |
453 | ||
454 | dev_dbg(arizona->dev, "Suspend, disabling IRQ\n"); | |
455 | disable_irq(arizona->irq); | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
460 | static int arizona_suspend_late(struct device *dev) | |
461 | { | |
462 | struct arizona *arizona = dev_get_drvdata(dev); | |
463 | ||
464 | dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n"); | |
465 | enable_irq(arizona->irq); | |
466 | ||
467 | return 0; | |
468 | } | |
469 | ||
dc781d0e MB |
470 | static int arizona_resume_noirq(struct device *dev) |
471 | { | |
472 | struct arizona *arizona = dev_get_drvdata(dev); | |
473 | ||
474 | dev_dbg(arizona->dev, "Early resume, disabling IRQ\n"); | |
475 | disable_irq(arizona->irq); | |
476 | ||
477 | return 0; | |
478 | } | |
479 | ||
480 | static int arizona_resume(struct device *dev) | |
481 | { | |
482 | struct arizona *arizona = dev_get_drvdata(dev); | |
483 | ||
484 | dev_dbg(arizona->dev, "Late resume, reenabling IRQ\n"); | |
485 | enable_irq(arizona->irq); | |
486 | ||
487 | return 0; | |
488 | } | |
489 | #endif | |
490 | ||
3cc72986 MB |
491 | const struct dev_pm_ops arizona_pm_ops = { |
492 | SET_RUNTIME_PM_OPS(arizona_runtime_suspend, | |
493 | arizona_runtime_resume, | |
494 | NULL) | |
67c99296 | 495 | SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume) |
dc781d0e | 496 | #ifdef CONFIG_PM_SLEEP |
67c99296 | 497 | .suspend_late = arizona_suspend_late, |
dc781d0e MB |
498 | .resume_noirq = arizona_resume_noirq, |
499 | #endif | |
3cc72986 MB |
500 | }; |
501 | EXPORT_SYMBOL_GPL(arizona_pm_ops); | |
502 | ||
d781009c MB |
503 | #ifdef CONFIG_OF |
504 | int arizona_of_get_type(struct device *dev) | |
505 | { | |
506 | const struct of_device_id *id = of_match_device(arizona_of_match, dev); | |
507 | ||
508 | if (id) | |
509 | return (int)id->data; | |
510 | else | |
511 | return 0; | |
512 | } | |
513 | EXPORT_SYMBOL_GPL(arizona_of_get_type); | |
514 | ||
515 | static int arizona_of_get_core_pdata(struct arizona *arizona) | |
516 | { | |
517 | int ret, i; | |
518 | ||
519 | arizona->pdata.reset = of_get_named_gpio(arizona->dev->of_node, | |
520 | "wlf,reset", 0); | |
521 | if (arizona->pdata.reset < 0) | |
522 | arizona->pdata.reset = 0; | |
523 | ||
524 | arizona->pdata.ldoena = of_get_named_gpio(arizona->dev->of_node, | |
525 | "wlf,ldoena", 0); | |
526 | if (arizona->pdata.ldoena < 0) | |
527 | arizona->pdata.ldoena = 0; | |
528 | ||
529 | ret = of_property_read_u32_array(arizona->dev->of_node, | |
530 | "wlf,gpio-defaults", | |
531 | arizona->pdata.gpio_defaults, | |
532 | ARRAY_SIZE(arizona->pdata.gpio_defaults)); | |
533 | if (ret >= 0) { | |
534 | /* | |
535 | * All values are literal except out of range values | |
536 | * which are chip default, translate into platform | |
537 | * data which uses 0 as chip default and out of range | |
538 | * as zero. | |
539 | */ | |
540 | for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) { | |
541 | if (arizona->pdata.gpio_defaults[i] > 0xffff) | |
542 | arizona->pdata.gpio_defaults[i] = 0; | |
543 | if (arizona->pdata.gpio_defaults[i] == 0) | |
544 | arizona->pdata.gpio_defaults[i] = 0x10000; | |
545 | } | |
546 | } else { | |
547 | dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n", | |
548 | ret); | |
549 | } | |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
554 | const struct of_device_id arizona_of_match[] = { | |
555 | { .compatible = "wlf,wm5102", .data = (void *)WM5102 }, | |
556 | { .compatible = "wlf,wm5110", .data = (void *)WM5110 }, | |
dc7d4863 | 557 | { .compatible = "wlf,wm8997", .data = (void *)WM8997 }, |
d781009c MB |
558 | {}, |
559 | }; | |
560 | EXPORT_SYMBOL_GPL(arizona_of_match); | |
561 | #else | |
562 | static inline int arizona_of_get_core_pdata(struct arizona *arizona) | |
563 | { | |
564 | return 0; | |
565 | } | |
566 | #endif | |
567 | ||
3cc72986 MB |
568 | static struct mfd_cell early_devs[] = { |
569 | { .name = "arizona-ldo1" }, | |
570 | }; | |
571 | ||
572 | static struct mfd_cell wm5102_devs[] = { | |
d7768111 | 573 | { .name = "arizona-micsupp" }, |
3cc72986 MB |
574 | { .name = "arizona-extcon" }, |
575 | { .name = "arizona-gpio" }, | |
503b1cac | 576 | { .name = "arizona-haptics" }, |
3cc72986 MB |
577 | { .name = "arizona-pwm" }, |
578 | { .name = "wm5102-codec" }, | |
579 | }; | |
580 | ||
e102befe | 581 | static struct mfd_cell wm5110_devs[] = { |
d7768111 | 582 | { .name = "arizona-micsupp" }, |
e102befe MB |
583 | { .name = "arizona-extcon" }, |
584 | { .name = "arizona-gpio" }, | |
503b1cac | 585 | { .name = "arizona-haptics" }, |
e102befe MB |
586 | { .name = "arizona-pwm" }, |
587 | { .name = "wm5110-codec" }, | |
588 | }; | |
589 | ||
dc7d4863 CK |
590 | static struct mfd_cell wm8997_devs[] = { |
591 | { .name = "arizona-micsupp" }, | |
592 | { .name = "arizona-extcon" }, | |
593 | { .name = "arizona-gpio" }, | |
594 | { .name = "arizona-haptics" }, | |
595 | { .name = "arizona-pwm" }, | |
596 | { .name = "wm8997-codec" }, | |
597 | }; | |
598 | ||
f791be49 | 599 | int arizona_dev_init(struct arizona *arizona) |
3cc72986 MB |
600 | { |
601 | struct device *dev = arizona->dev; | |
602 | const char *type_name; | |
603 | unsigned int reg, val; | |
62d62b59 | 604 | int (*apply_patch)(struct arizona *) = NULL; |
3cc72986 MB |
605 | int ret, i; |
606 | ||
607 | dev_set_drvdata(arizona->dev, arizona); | |
608 | mutex_init(&arizona->clk_lock); | |
609 | ||
d781009c MB |
610 | arizona_of_get_core_pdata(arizona); |
611 | ||
3cc72986 MB |
612 | if (dev_get_platdata(arizona->dev)) |
613 | memcpy(&arizona->pdata, dev_get_platdata(arizona->dev), | |
614 | sizeof(arizona->pdata)); | |
615 | ||
616 | regcache_cache_only(arizona->regmap, true); | |
617 | ||
618 | switch (arizona->type) { | |
619 | case WM5102: | |
e102befe | 620 | case WM5110: |
dc7d4863 | 621 | case WM8997: |
3cc72986 MB |
622 | for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++) |
623 | arizona->core_supplies[i].supply | |
624 | = wm5102_core_supplies[i]; | |
625 | arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies); | |
626 | break; | |
627 | default: | |
628 | dev_err(arizona->dev, "Unknown device type %d\n", | |
629 | arizona->type); | |
630 | return -EINVAL; | |
631 | } | |
632 | ||
633 | ret = mfd_add_devices(arizona->dev, -1, early_devs, | |
0848c94f | 634 | ARRAY_SIZE(early_devs), NULL, 0, NULL); |
3cc72986 MB |
635 | if (ret != 0) { |
636 | dev_err(dev, "Failed to add early children: %d\n", ret); | |
637 | return ret; | |
638 | } | |
639 | ||
640 | ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies, | |
641 | arizona->core_supplies); | |
642 | if (ret != 0) { | |
643 | dev_err(dev, "Failed to request core supplies: %d\n", | |
644 | ret); | |
645 | goto err_early; | |
646 | } | |
647 | ||
59db9691 MB |
648 | arizona->dcvdd = devm_regulator_get(arizona->dev, "DCVDD"); |
649 | if (IS_ERR(arizona->dcvdd)) { | |
650 | ret = PTR_ERR(arizona->dcvdd); | |
651 | dev_err(dev, "Failed to request DCVDD: %d\n", ret); | |
652 | goto err_early; | |
653 | } | |
654 | ||
87d3af4a MB |
655 | if (arizona->pdata.reset) { |
656 | /* Start out with /RESET low to put the chip into reset */ | |
657 | ret = gpio_request_one(arizona->pdata.reset, | |
658 | GPIOF_DIR_OUT | GPIOF_INIT_LOW, | |
659 | "arizona /RESET"); | |
660 | if (ret != 0) { | |
661 | dev_err(dev, "Failed to request /RESET: %d\n", ret); | |
662 | goto err_early; | |
663 | } | |
664 | } | |
665 | ||
3cc72986 MB |
666 | ret = regulator_bulk_enable(arizona->num_core_supplies, |
667 | arizona->core_supplies); | |
668 | if (ret != 0) { | |
669 | dev_err(dev, "Failed to enable core supplies: %d\n", | |
670 | ret); | |
671 | goto err_early; | |
672 | } | |
673 | ||
59db9691 MB |
674 | ret = regulator_enable(arizona->dcvdd); |
675 | if (ret != 0) { | |
676 | dev_err(dev, "Failed to enable DCVDD: %d\n", ret); | |
677 | goto err_enable; | |
678 | } | |
679 | ||
c25feaa5 | 680 | if (arizona->pdata.reset) { |
3cc72986 | 681 | gpio_set_value_cansleep(arizona->pdata.reset, 1); |
c25feaa5 CK |
682 | msleep(1); |
683 | } | |
3cc72986 | 684 | |
3cc72986 MB |
685 | regcache_cache_only(arizona->regmap, false); |
686 | ||
ca76ceb8 | 687 | /* Verify that this is a chip we know about */ |
3cc72986 MB |
688 | ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®); |
689 | if (ret != 0) { | |
690 | dev_err(dev, "Failed to read ID register: %d\n", ret); | |
59db9691 | 691 | goto err_reset; |
3cc72986 MB |
692 | } |
693 | ||
3cc72986 MB |
694 | switch (reg) { |
695 | case 0x5102: | |
e102befe | 696 | case 0x5110: |
dc7d4863 | 697 | case 0x8997: |
e102befe | 698 | break; |
3cc72986 | 699 | default: |
ca76ceb8 | 700 | dev_err(arizona->dev, "Unknown device ID: %x\n", reg); |
59db9691 | 701 | goto err_reset; |
3cc72986 MB |
702 | } |
703 | ||
3cc72986 MB |
704 | /* If we have a /RESET GPIO we'll already be reset */ |
705 | if (!arizona->pdata.reset) { | |
46b9d13a CK |
706 | regcache_mark_dirty(arizona->regmap); |
707 | ||
3cc72986 MB |
708 | ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0); |
709 | if (ret != 0) { | |
710 | dev_err(dev, "Failed to reset device: %d\n", ret); | |
59db9691 | 711 | goto err_reset; |
3cc72986 | 712 | } |
46b9d13a | 713 | |
c25feaa5 CK |
714 | msleep(1); |
715 | ||
46b9d13a CK |
716 | ret = regcache_sync(arizona->regmap); |
717 | if (ret != 0) { | |
718 | dev_err(dev, "Failed to sync device: %d\n", ret); | |
719 | goto err_reset; | |
720 | } | |
3cc72986 MB |
721 | } |
722 | ||
ca76ceb8 | 723 | /* Ensure device startup is complete */ |
d955cba8 CK |
724 | switch (arizona->type) { |
725 | case WM5102: | |
726 | ret = regmap_read(arizona->regmap, 0x19, &val); | |
727 | if (ret != 0) | |
728 | dev_err(dev, | |
729 | "Failed to check write sequencer state: %d\n", | |
730 | ret); | |
731 | else if (val & 0x01) | |
732 | break; | |
733 | /* Fall through */ | |
734 | default: | |
735 | ret = arizona_wait_for_boot(arizona); | |
736 | if (ret != 0) { | |
737 | dev_err(arizona->dev, | |
738 | "Device failed initial boot: %d\n", ret); | |
739 | goto err_reset; | |
740 | } | |
741 | break; | |
af65a361 | 742 | } |
3cc72986 | 743 | |
ca76ceb8 MB |
744 | /* Read the device ID information & do device specific stuff */ |
745 | ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®); | |
746 | if (ret != 0) { | |
747 | dev_err(dev, "Failed to read ID register: %d\n", ret); | |
748 | goto err_reset; | |
749 | } | |
750 | ||
751 | ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION, | |
752 | &arizona->rev); | |
753 | if (ret != 0) { | |
754 | dev_err(dev, "Failed to read revision register: %d\n", ret); | |
755 | goto err_reset; | |
756 | } | |
757 | arizona->rev &= ARIZONA_DEVICE_REVISION_MASK; | |
758 | ||
759 | switch (reg) { | |
760 | #ifdef CONFIG_MFD_WM5102 | |
761 | case 0x5102: | |
762 | type_name = "WM5102"; | |
763 | if (arizona->type != WM5102) { | |
764 | dev_err(arizona->dev, "WM5102 registered as %d\n", | |
765 | arizona->type); | |
766 | arizona->type = WM5102; | |
767 | } | |
768 | apply_patch = wm5102_patch; | |
769 | arizona->rev &= 0x7; | |
770 | break; | |
771 | #endif | |
772 | #ifdef CONFIG_MFD_WM5110 | |
773 | case 0x5110: | |
774 | type_name = "WM5110"; | |
775 | if (arizona->type != WM5110) { | |
776 | dev_err(arizona->dev, "WM5110 registered as %d\n", | |
777 | arizona->type); | |
778 | arizona->type = WM5110; | |
779 | } | |
780 | apply_patch = wm5110_patch; | |
781 | break; | |
dc7d4863 CK |
782 | #endif |
783 | #ifdef CONFIG_MFD_WM8997 | |
784 | case 0x8997: | |
785 | type_name = "WM8997"; | |
786 | if (arizona->type != WM8997) { | |
787 | dev_err(arizona->dev, "WM8997 registered as %d\n", | |
788 | arizona->type); | |
789 | arizona->type = WM8997; | |
790 | } | |
791 | apply_patch = wm8997_patch; | |
792 | break; | |
ca76ceb8 MB |
793 | #endif |
794 | default: | |
795 | dev_err(arizona->dev, "Unknown device ID %x\n", reg); | |
796 | goto err_reset; | |
797 | } | |
798 | ||
799 | dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A'); | |
800 | ||
62d62b59 MB |
801 | if (apply_patch) { |
802 | ret = apply_patch(arizona); | |
803 | if (ret != 0) { | |
804 | dev_err(arizona->dev, "Failed to apply patch: %d\n", | |
805 | ret); | |
806 | goto err_reset; | |
807 | } | |
e80436bb CK |
808 | |
809 | switch (arizona->type) { | |
810 | case WM5102: | |
811 | ret = arizona_apply_hardware_patch(arizona); | |
812 | if (ret != 0) { | |
813 | dev_err(arizona->dev, | |
814 | "Failed to apply hardware patch: %d\n", | |
815 | ret); | |
816 | goto err_reset; | |
817 | } | |
818 | break; | |
819 | default: | |
820 | break; | |
821 | } | |
62d62b59 MB |
822 | } |
823 | ||
3cc72986 MB |
824 | for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) { |
825 | if (!arizona->pdata.gpio_defaults[i]) | |
826 | continue; | |
827 | ||
828 | regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i, | |
829 | arizona->pdata.gpio_defaults[i]); | |
830 | } | |
831 | ||
5927467d MB |
832 | /* |
833 | * LDO1 can only be used to supply DCVDD so if it has no | |
834 | * consumers then DCVDD is supplied externally. | |
835 | */ | |
836 | if (arizona->pdata.ldo1 && | |
837 | arizona->pdata.ldo1->num_consumer_supplies == 0) | |
838 | arizona->external_dcvdd = true; | |
839 | ||
3cc72986 MB |
840 | pm_runtime_set_autosuspend_delay(arizona->dev, 100); |
841 | pm_runtime_use_autosuspend(arizona->dev); | |
842 | pm_runtime_enable(arizona->dev); | |
843 | ||
844 | /* Chip default */ | |
845 | if (!arizona->pdata.clk32k_src) | |
846 | arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2; | |
847 | ||
848 | switch (arizona->pdata.clk32k_src) { | |
849 | case ARIZONA_32KZ_MCLK1: | |
850 | case ARIZONA_32KZ_MCLK2: | |
851 | regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1, | |
852 | ARIZONA_CLK_32K_SRC_MASK, | |
853 | arizona->pdata.clk32k_src - 1); | |
767c6dc0 | 854 | arizona_clk32k_enable(arizona); |
3cc72986 MB |
855 | break; |
856 | case ARIZONA_32KZ_NONE: | |
857 | regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1, | |
858 | ARIZONA_CLK_32K_SRC_MASK, 2); | |
859 | break; | |
860 | default: | |
861 | dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n", | |
862 | arizona->pdata.clk32k_src); | |
863 | ret = -EINVAL; | |
59db9691 | 864 | goto err_reset; |
3cc72986 MB |
865 | } |
866 | ||
3d91f828 | 867 | for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) { |
544c7aad MB |
868 | if (!arizona->pdata.micbias[i].mV && |
869 | !arizona->pdata.micbias[i].bypass) | |
3d91f828 MB |
870 | continue; |
871 | ||
544c7aad MB |
872 | /* Apply default for bypass mode */ |
873 | if (!arizona->pdata.micbias[i].mV) | |
874 | arizona->pdata.micbias[i].mV = 2800; | |
875 | ||
3d91f828 | 876 | val = (arizona->pdata.micbias[i].mV - 1500) / 100; |
544c7aad | 877 | |
3d91f828 MB |
878 | val <<= ARIZONA_MICB1_LVL_SHIFT; |
879 | ||
880 | if (arizona->pdata.micbias[i].ext_cap) | |
881 | val |= ARIZONA_MICB1_EXT_CAP; | |
882 | ||
883 | if (arizona->pdata.micbias[i].discharge) | |
884 | val |= ARIZONA_MICB1_DISCH; | |
885 | ||
f773fc6d | 886 | if (arizona->pdata.micbias[i].soft_start) |
3d91f828 MB |
887 | val |= ARIZONA_MICB1_RATE; |
888 | ||
544c7aad MB |
889 | if (arizona->pdata.micbias[i].bypass) |
890 | val |= ARIZONA_MICB1_BYPASS; | |
891 | ||
3d91f828 MB |
892 | regmap_update_bits(arizona->regmap, |
893 | ARIZONA_MIC_BIAS_CTRL_1 + i, | |
894 | ARIZONA_MICB1_LVL_MASK | | |
895 | ARIZONA_MICB1_DISCH | | |
544c7aad | 896 | ARIZONA_MICB1_BYPASS | |
3d91f828 MB |
897 | ARIZONA_MICB1_RATE, val); |
898 | } | |
899 | ||
3cc72986 MB |
900 | for (i = 0; i < ARIZONA_MAX_INPUT; i++) { |
901 | /* Default for both is 0 so noop with defaults */ | |
902 | val = arizona->pdata.dmic_ref[i] | |
903 | << ARIZONA_IN1_DMIC_SUP_SHIFT; | |
904 | val |= arizona->pdata.inmode[i] << ARIZONA_IN1_MODE_SHIFT; | |
905 | ||
906 | regmap_update_bits(arizona->regmap, | |
907 | ARIZONA_IN1L_CONTROL + (i * 8), | |
908 | ARIZONA_IN1_DMIC_SUP_MASK | | |
909 | ARIZONA_IN1_MODE_MASK, val); | |
910 | } | |
911 | ||
912 | for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) { | |
913 | /* Default is 0 so noop with defaults */ | |
914 | if (arizona->pdata.out_mono[i]) | |
915 | val = ARIZONA_OUT1_MONO; | |
916 | else | |
917 | val = 0; | |
918 | ||
919 | regmap_update_bits(arizona->regmap, | |
920 | ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8), | |
921 | ARIZONA_OUT1_MONO, val); | |
922 | } | |
923 | ||
3cc72986 MB |
924 | for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) { |
925 | if (arizona->pdata.spk_mute[i]) | |
926 | regmap_update_bits(arizona->regmap, | |
2a51da04 | 927 | ARIZONA_PDM_SPK1_CTRL_1 + (i * 2), |
3cc72986 MB |
928 | ARIZONA_SPK1_MUTE_ENDIAN_MASK | |
929 | ARIZONA_SPK1_MUTE_SEQ1_MASK, | |
930 | arizona->pdata.spk_mute[i]); | |
931 | ||
932 | if (arizona->pdata.spk_fmt[i]) | |
933 | regmap_update_bits(arizona->regmap, | |
2a51da04 | 934 | ARIZONA_PDM_SPK1_CTRL_2 + (i * 2), |
3cc72986 MB |
935 | ARIZONA_SPK1_FMT_MASK, |
936 | arizona->pdata.spk_fmt[i]); | |
937 | } | |
938 | ||
939 | /* Set up for interrupts */ | |
940 | ret = arizona_irq_init(arizona); | |
941 | if (ret != 0) | |
59db9691 | 942 | goto err_reset; |
3cc72986 MB |
943 | |
944 | arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error", | |
945 | arizona_clkgen_err, arizona); | |
946 | arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked", | |
947 | arizona_overclocked, arizona); | |
948 | arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked", | |
949 | arizona_underclocked, arizona); | |
950 | ||
951 | switch (arizona->type) { | |
952 | case WM5102: | |
953 | ret = mfd_add_devices(arizona->dev, -1, wm5102_devs, | |
0848c94f | 954 | ARRAY_SIZE(wm5102_devs), NULL, 0, NULL); |
e102befe MB |
955 | break; |
956 | case WM5110: | |
957 | ret = mfd_add_devices(arizona->dev, -1, wm5110_devs, | |
78566afd | 958 | ARRAY_SIZE(wm5110_devs), NULL, 0, NULL); |
3cc72986 | 959 | break; |
dc7d4863 CK |
960 | case WM8997: |
961 | ret = mfd_add_devices(arizona->dev, -1, wm8997_devs, | |
962 | ARRAY_SIZE(wm8997_devs), NULL, 0, NULL); | |
963 | break; | |
3cc72986 MB |
964 | } |
965 | ||
966 | if (ret != 0) { | |
967 | dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret); | |
968 | goto err_irq; | |
969 | } | |
970 | ||
59db9691 MB |
971 | #ifdef CONFIG_PM_RUNTIME |
972 | regulator_disable(arizona->dcvdd); | |
973 | #endif | |
974 | ||
3cc72986 MB |
975 | return 0; |
976 | ||
977 | err_irq: | |
978 | arizona_irq_exit(arizona); | |
3cc72986 MB |
979 | err_reset: |
980 | if (arizona->pdata.reset) { | |
87d3af4a | 981 | gpio_set_value_cansleep(arizona->pdata.reset, 0); |
3cc72986 MB |
982 | gpio_free(arizona->pdata.reset); |
983 | } | |
59db9691 | 984 | regulator_disable(arizona->dcvdd); |
3cc72986 | 985 | err_enable: |
3a36a0db | 986 | regulator_bulk_disable(arizona->num_core_supplies, |
3cc72986 MB |
987 | arizona->core_supplies); |
988 | err_early: | |
989 | mfd_remove_devices(dev); | |
990 | return ret; | |
991 | } | |
992 | EXPORT_SYMBOL_GPL(arizona_dev_init); | |
993 | ||
4740f73f | 994 | int arizona_dev_exit(struct arizona *arizona) |
3cc72986 MB |
995 | { |
996 | mfd_remove_devices(arizona->dev); | |
997 | arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona); | |
998 | arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona); | |
999 | arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona); | |
1000 | pm_runtime_disable(arizona->dev); | |
1001 | arizona_irq_exit(arizona); | |
1d017b6b MB |
1002 | if (arizona->pdata.reset) |
1003 | gpio_set_value_cansleep(arizona->pdata.reset, 0); | |
1004 | regulator_disable(arizona->dcvdd); | |
1005 | regulator_bulk_disable(ARRAY_SIZE(arizona->core_supplies), | |
1006 | arizona->core_supplies); | |
3cc72986 MB |
1007 | return 0; |
1008 | } | |
1009 | EXPORT_SYMBOL_GPL(arizona_dev_exit); |