Commit | Line | Data |
---|---|---|
f9b95980 | 1 | /* |
2 | * kirkwood-i2s.c | |
3 | * | |
4 | * (c) 2010 Arnaud Patard <apatard@mandriva.com> | |
69737897 | 5 | * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org> |
f9b95980 | 6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | */ | |
12 | ||
13 | #include <linux/init.h> | |
14 | #include <linux/module.h> | |
15 | #include <linux/platform_device.h> | |
16 | #include <linux/io.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/mbus.h> | |
19 | #include <linux/delay.h> | |
e919c716 | 20 | #include <linux/clk.h> |
f9b95980 | 21 | #include <sound/pcm.h> |
22 | #include <sound/pcm_params.h> | |
23 | #include <sound/soc.h> | |
c02cecb9 | 24 | #include <linux/platform_data/asoc-kirkwood.h> |
eb632318 JFM |
25 | #include <linux/of.h> |
26 | ||
f9b95980 | 27 | #include "kirkwood.h" |
28 | ||
64ddf1f8 | 29 | #define DRV_NAME "mvebu-audio" |
f9b95980 | 30 | |
f9b95980 | 31 | #define KIRKWOOD_I2S_FORMATS \ |
32 | (SNDRV_PCM_FMTBIT_S16_LE | \ | |
33 | SNDRV_PCM_FMTBIT_S24_LE | \ | |
34 | SNDRV_PCM_FMTBIT_S32_LE) | |
35 | ||
1c195ddb JFM |
36 | #define KIRKWOOD_SPDIF_FORMATS \ |
37 | (SNDRV_PCM_FMTBIT_S16_LE | \ | |
38 | SNDRV_PCM_FMTBIT_S24_LE) | |
39 | ||
f9b95980 | 40 | static int kirkwood_i2s_set_fmt(struct snd_soc_dai *cpu_dai, |
41 | unsigned int fmt) | |
42 | { | |
f0fba2ad | 43 | struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(cpu_dai); |
f9b95980 | 44 | unsigned long mask; |
45 | unsigned long value; | |
46 | ||
47 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
48 | case SND_SOC_DAIFMT_RIGHT_J: | |
49 | mask = KIRKWOOD_I2S_CTL_RJ; | |
50 | break; | |
51 | case SND_SOC_DAIFMT_LEFT_J: | |
52 | mask = KIRKWOOD_I2S_CTL_LJ; | |
53 | break; | |
54 | case SND_SOC_DAIFMT_I2S: | |
55 | mask = KIRKWOOD_I2S_CTL_I2S; | |
56 | break; | |
57 | default: | |
58 | return -EINVAL; | |
59 | } | |
60 | ||
61 | /* | |
62 | * Set same format for playback and record | |
63 | * This avoids some troubles. | |
64 | */ | |
65 | value = readl(priv->io+KIRKWOOD_I2S_PLAYCTL); | |
66 | value &= ~KIRKWOOD_I2S_CTL_JUST_MASK; | |
67 | value |= mask; | |
68 | writel(value, priv->io+KIRKWOOD_I2S_PLAYCTL); | |
69 | ||
70 | value = readl(priv->io+KIRKWOOD_I2S_RECCTL); | |
71 | value &= ~KIRKWOOD_I2S_CTL_JUST_MASK; | |
72 | value |= mask; | |
73 | writel(value, priv->io+KIRKWOOD_I2S_RECCTL); | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
78 | static inline void kirkwood_set_dco(void __iomem *io, unsigned long rate) | |
79 | { | |
80 | unsigned long value; | |
81 | ||
82 | value = KIRKWOOD_DCO_CTL_OFFSET_0; | |
83 | switch (rate) { | |
84 | default: | |
85 | case 44100: | |
86 | value |= KIRKWOOD_DCO_CTL_FREQ_11; | |
87 | break; | |
88 | case 48000: | |
89 | value |= KIRKWOOD_DCO_CTL_FREQ_12; | |
90 | break; | |
91 | case 96000: | |
92 | value |= KIRKWOOD_DCO_CTL_FREQ_24; | |
93 | break; | |
94 | } | |
95 | writel(value, io + KIRKWOOD_DCO_CTL); | |
96 | ||
97 | /* wait for dco locked */ | |
98 | do { | |
99 | cpu_relax(); | |
100 | value = readl(io + KIRKWOOD_DCO_SPCR_STATUS); | |
2424d458 | 101 | value &= KIRKWOOD_DCO_SPCR_STATUS_DCO_LOCK; |
f9b95980 | 102 | } while (value == 0); |
103 | } | |
104 | ||
363589bf RK |
105 | static void kirkwood_set_rate(struct snd_soc_dai *dai, |
106 | struct kirkwood_dma_data *priv, unsigned long rate) | |
107 | { | |
108 | uint32_t clks_ctrl; | |
109 | ||
1f1b6579 | 110 | if (IS_ERR(priv->extclk)) { |
8a537f85 JFM |
111 | /* use internal dco for the supported rates |
112 | * defined in kirkwood_i2s_dai */ | |
363589bf RK |
113 | dev_dbg(dai->dev, "%s: dco set rate = %lu\n", |
114 | __func__, rate); | |
115 | kirkwood_set_dco(priv->io, rate); | |
116 | ||
117 | clks_ctrl = KIRKWOOD_MCLK_SOURCE_DCO; | |
8a537f85 JFM |
118 | } else { |
119 | /* use the external clock for the other rates | |
120 | * defined in kirkwood_i2s_dai_extclk */ | |
363589bf RK |
121 | dev_dbg(dai->dev, "%s: extclk set rate = %lu -> %lu\n", |
122 | __func__, rate, 256 * rate); | |
123 | clk_set_rate(priv->extclk, 256 * rate); | |
124 | ||
125 | clks_ctrl = KIRKWOOD_MCLK_SOURCE_EXTCLK; | |
126 | } | |
127 | writel(clks_ctrl, priv->io + KIRKWOOD_CLOCKS_CTRL); | |
128 | } | |
129 | ||
f0fba2ad LG |
130 | static int kirkwood_i2s_startup(struct snd_pcm_substream *substream, |
131 | struct snd_soc_dai *dai) | |
132 | { | |
133 | struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); | |
134 | ||
135 | snd_soc_dai_set_dma_data(dai, substream, priv); | |
136 | return 0; | |
137 | } | |
138 | ||
f9b95980 | 139 | static int kirkwood_i2s_hw_params(struct snd_pcm_substream *substream, |
140 | struct snd_pcm_hw_params *params, | |
141 | struct snd_soc_dai *dai) | |
142 | { | |
f0fba2ad | 143 | struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); |
d8d11ba5 RK |
144 | uint32_t ctl_play, ctl_rec; |
145 | unsigned int i2s_reg; | |
146 | unsigned long i2s_value; | |
f9b95980 | 147 | |
148 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
149 | i2s_reg = KIRKWOOD_I2S_PLAYCTL; | |
f9b95980 | 150 | } else { |
151 | i2s_reg = KIRKWOOD_I2S_RECCTL; | |
f9b95980 | 152 | } |
153 | ||
363589bf | 154 | kirkwood_set_rate(dai, priv, params_rate(params)); |
f9b95980 | 155 | |
156 | i2s_value = readl(priv->io+i2s_reg); | |
157 | i2s_value &= ~KIRKWOOD_I2S_CTL_SIZE_MASK; | |
158 | ||
f9b95980 | 159 | /* |
160 | * Size settings in play/rec i2s control regs and play/rec control | |
161 | * regs must be the same. | |
162 | */ | |
163 | switch (params_format(params)) { | |
164 | case SNDRV_PCM_FORMAT_S16_LE: | |
165 | i2s_value |= KIRKWOOD_I2S_CTL_SIZE_16; | |
d8d11ba5 | 166 | ctl_play = KIRKWOOD_PLAYCTL_SIZE_16_C | |
75b9b65e JFM |
167 | KIRKWOOD_PLAYCTL_I2S_EN | |
168 | KIRKWOOD_PLAYCTL_SPDIF_EN; | |
d8d11ba5 | 169 | ctl_rec = KIRKWOOD_RECCTL_SIZE_16_C | |
75b9b65e JFM |
170 | KIRKWOOD_RECCTL_I2S_EN | |
171 | KIRKWOOD_RECCTL_SPDIF_EN; | |
f9b95980 | 172 | break; |
173 | /* | |
174 | * doesn't work... S20_3LE != kirkwood 20bit format ? | |
175 | * | |
176 | case SNDRV_PCM_FORMAT_S20_3LE: | |
177 | i2s_value |= KIRKWOOD_I2S_CTL_SIZE_20; | |
d8d11ba5 RK |
178 | ctl_play = KIRKWOOD_PLAYCTL_SIZE_20 | |
179 | KIRKWOOD_PLAYCTL_I2S_EN; | |
180 | ctl_rec = KIRKWOOD_RECCTL_SIZE_20 | | |
181 | KIRKWOOD_RECCTL_I2S_EN; | |
f9b95980 | 182 | break; |
183 | */ | |
184 | case SNDRV_PCM_FORMAT_S24_LE: | |
185 | i2s_value |= KIRKWOOD_I2S_CTL_SIZE_24; | |
d8d11ba5 | 186 | ctl_play = KIRKWOOD_PLAYCTL_SIZE_24 | |
75b9b65e JFM |
187 | KIRKWOOD_PLAYCTL_I2S_EN | |
188 | KIRKWOOD_PLAYCTL_SPDIF_EN; | |
d8d11ba5 | 189 | ctl_rec = KIRKWOOD_RECCTL_SIZE_24 | |
75b9b65e JFM |
190 | KIRKWOOD_RECCTL_I2S_EN | |
191 | KIRKWOOD_RECCTL_SPDIF_EN; | |
f9b95980 | 192 | break; |
193 | case SNDRV_PCM_FORMAT_S32_LE: | |
194 | i2s_value |= KIRKWOOD_I2S_CTL_SIZE_32; | |
d8d11ba5 RK |
195 | ctl_play = KIRKWOOD_PLAYCTL_SIZE_32 | |
196 | KIRKWOOD_PLAYCTL_I2S_EN; | |
197 | ctl_rec = KIRKWOOD_RECCTL_SIZE_32 | | |
198 | KIRKWOOD_RECCTL_I2S_EN; | |
f9b95980 | 199 | break; |
200 | default: | |
201 | return -EINVAL; | |
202 | } | |
dfe4c936 | 203 | |
204 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
dfe4c936 | 205 | if (params_channels(params) == 1) |
d8d11ba5 | 206 | ctl_play |= KIRKWOOD_PLAYCTL_MONO_BOTH; |
dfe4c936 | 207 | else |
d8d11ba5 RK |
208 | ctl_play |= KIRKWOOD_PLAYCTL_MONO_OFF; |
209 | ||
210 | priv->ctl_play &= ~(KIRKWOOD_PLAYCTL_MONO_MASK | | |
db43b16f | 211 | KIRKWOOD_PLAYCTL_ENABLE_MASK | |
d8d11ba5 RK |
212 | KIRKWOOD_PLAYCTL_SIZE_MASK); |
213 | priv->ctl_play |= ctl_play; | |
214 | } else { | |
215 | priv->ctl_rec &= ~KIRKWOOD_RECCTL_SIZE_MASK; | |
216 | priv->ctl_rec |= ctl_rec; | |
dfe4c936 | 217 | } |
218 | ||
f9b95980 | 219 | writel(i2s_value, priv->io+i2s_reg); |
f9b95980 | 220 | |
221 | return 0; | |
222 | } | |
223 | ||
224 | static int kirkwood_i2s_play_trigger(struct snd_pcm_substream *substream, | |
225 | int cmd, struct snd_soc_dai *dai) | |
226 | { | |
f0fba2ad | 227 | struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); |
982b604b RK |
228 | uint32_t ctl, value; |
229 | ||
230 | ctl = readl(priv->io + KIRKWOOD_PLAYCTL); | |
231 | if (ctl & KIRKWOOD_PLAYCTL_PAUSE) { | |
232 | unsigned timeout = 5000; | |
233 | /* | |
234 | * The Armada510 spec says that if we enter pause mode, the | |
235 | * busy bit must be read back as clear _twice_. Make sure | |
236 | * we respect that otherwise we get DMA underruns. | |
237 | */ | |
238 | do { | |
239 | value = ctl; | |
240 | ctl = readl(priv->io + KIRKWOOD_PLAYCTL); | |
241 | if (!((ctl | value) & KIRKWOOD_PLAYCTL_PLAY_BUSY)) | |
242 | break; | |
243 | udelay(1); | |
244 | } while (timeout--); | |
245 | ||
246 | if ((ctl | value) & KIRKWOOD_PLAYCTL_PLAY_BUSY) | |
247 | dev_notice(dai->dev, "timed out waiting for busy to deassert: %08x\n", | |
248 | ctl); | |
249 | } | |
f9b95980 | 250 | |
251 | switch (cmd) { | |
252 | case SNDRV_PCM_TRIGGER_START: | |
d8d11ba5 RK |
253 | /* configure */ |
254 | ctl = priv->ctl_play; | |
4f6f1478 JFM |
255 | if (dai->id == 0) |
256 | ctl &= ~KIRKWOOD_PLAYCTL_SPDIF_EN; /* i2s */ | |
257 | else | |
258 | ctl &= ~KIRKWOOD_PLAYCTL_I2S_EN; /* spdif */ | |
259 | ||
db43b16f | 260 | value = ctl & ~KIRKWOOD_PLAYCTL_ENABLE_MASK; |
d8d11ba5 RK |
261 | writel(value, priv->io + KIRKWOOD_PLAYCTL); |
262 | ||
263 | /* enable interrupts */ | |
f9b95980 | 264 | value = readl(priv->io + KIRKWOOD_INT_MASK); |
265 | value |= KIRKWOOD_INT_CAUSE_PLAY_BYTES; | |
266 | writel(value, priv->io + KIRKWOOD_INT_MASK); | |
267 | ||
d8d11ba5 | 268 | /* enable playback */ |
982b604b | 269 | writel(ctl, priv->io + KIRKWOOD_PLAYCTL); |
f9b95980 | 270 | break; |
271 | ||
272 | case SNDRV_PCM_TRIGGER_STOP: | |
273 | /* stop audio, disable interrupts */ | |
75b9b65e JFM |
274 | ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE | |
275 | KIRKWOOD_PLAYCTL_SPDIF_MUTE; | |
982b604b | 276 | writel(ctl, priv->io + KIRKWOOD_PLAYCTL); |
f9b95980 | 277 | |
278 | value = readl(priv->io + KIRKWOOD_INT_MASK); | |
279 | value &= ~KIRKWOOD_INT_CAUSE_PLAY_BYTES; | |
280 | writel(value, priv->io + KIRKWOOD_INT_MASK); | |
281 | ||
282 | /* disable all playbacks */ | |
db43b16f | 283 | ctl &= ~KIRKWOOD_PLAYCTL_ENABLE_MASK; |
982b604b | 284 | writel(ctl, priv->io + KIRKWOOD_PLAYCTL); |
f9b95980 | 285 | break; |
286 | ||
287 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
288 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
75b9b65e JFM |
289 | ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE | |
290 | KIRKWOOD_PLAYCTL_SPDIF_MUTE; | |
982b604b | 291 | writel(ctl, priv->io + KIRKWOOD_PLAYCTL); |
f9b95980 | 292 | break; |
293 | ||
294 | case SNDRV_PCM_TRIGGER_RESUME: | |
295 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
75b9b65e JFM |
296 | ctl &= ~(KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE | |
297 | KIRKWOOD_PLAYCTL_SPDIF_MUTE); | |
982b604b | 298 | writel(ctl, priv->io + KIRKWOOD_PLAYCTL); |
f9b95980 | 299 | break; |
300 | ||
301 | default: | |
302 | return -EINVAL; | |
303 | } | |
304 | ||
305 | return 0; | |
306 | } | |
307 | ||
308 | static int kirkwood_i2s_rec_trigger(struct snd_pcm_substream *substream, | |
309 | int cmd, struct snd_soc_dai *dai) | |
310 | { | |
f0fba2ad | 311 | struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); |
d8d11ba5 | 312 | uint32_t ctl, value; |
f9b95980 | 313 | |
314 | value = readl(priv->io + KIRKWOOD_RECCTL); | |
315 | ||
316 | switch (cmd) { | |
317 | case SNDRV_PCM_TRIGGER_START: | |
d8d11ba5 RK |
318 | /* configure */ |
319 | ctl = priv->ctl_rec; | |
75b9b65e JFM |
320 | if (dai->id == 0) |
321 | ctl &= ~KIRKWOOD_RECCTL_SPDIF_EN; /* i2s */ | |
322 | else | |
323 | ctl &= ~KIRKWOOD_RECCTL_I2S_EN; /* spdif */ | |
324 | ||
52b896cf | 325 | value = ctl & ~KIRKWOOD_RECCTL_ENABLE_MASK; |
d8d11ba5 RK |
326 | writel(value, priv->io + KIRKWOOD_RECCTL); |
327 | ||
328 | /* enable interrupts */ | |
f9b95980 | 329 | value = readl(priv->io + KIRKWOOD_INT_MASK); |
330 | value |= KIRKWOOD_INT_CAUSE_REC_BYTES; | |
331 | writel(value, priv->io + KIRKWOOD_INT_MASK); | |
332 | ||
d8d11ba5 RK |
333 | /* enable record */ |
334 | writel(ctl, priv->io + KIRKWOOD_RECCTL); | |
f9b95980 | 335 | break; |
336 | ||
337 | case SNDRV_PCM_TRIGGER_STOP: | |
338 | /* stop audio, disable interrupts */ | |
339 | value = readl(priv->io + KIRKWOOD_RECCTL); | |
b424ec95 | 340 | value |= KIRKWOOD_RECCTL_PAUSE | KIRKWOOD_RECCTL_MUTE; |
f9b95980 | 341 | writel(value, priv->io + KIRKWOOD_RECCTL); |
342 | ||
343 | value = readl(priv->io + KIRKWOOD_INT_MASK); | |
344 | value &= ~KIRKWOOD_INT_CAUSE_REC_BYTES; | |
345 | writel(value, priv->io + KIRKWOOD_INT_MASK); | |
346 | ||
347 | /* disable all records */ | |
348 | value = readl(priv->io + KIRKWOOD_RECCTL); | |
52b896cf | 349 | value &= ~KIRKWOOD_RECCTL_ENABLE_MASK; |
f9b95980 | 350 | writel(value, priv->io + KIRKWOOD_RECCTL); |
351 | break; | |
352 | ||
353 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
354 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
355 | value = readl(priv->io + KIRKWOOD_RECCTL); | |
b424ec95 | 356 | value |= KIRKWOOD_RECCTL_PAUSE | KIRKWOOD_RECCTL_MUTE; |
f9b95980 | 357 | writel(value, priv->io + KIRKWOOD_RECCTL); |
358 | break; | |
359 | ||
360 | case SNDRV_PCM_TRIGGER_RESUME: | |
361 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
362 | value = readl(priv->io + KIRKWOOD_RECCTL); | |
b424ec95 | 363 | value &= ~(KIRKWOOD_RECCTL_PAUSE | KIRKWOOD_RECCTL_MUTE); |
f9b95980 | 364 | writel(value, priv->io + KIRKWOOD_RECCTL); |
365 | break; | |
366 | ||
367 | default: | |
368 | return -EINVAL; | |
f9b95980 | 369 | } |
370 | ||
371 | return 0; | |
372 | } | |
373 | ||
374 | static int kirkwood_i2s_trigger(struct snd_pcm_substream *substream, int cmd, | |
375 | struct snd_soc_dai *dai) | |
376 | { | |
377 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
378 | return kirkwood_i2s_play_trigger(substream, cmd, dai); | |
379 | else | |
380 | return kirkwood_i2s_rec_trigger(substream, cmd, dai); | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
75b9b65e | 385 | static int kirkwood_i2s_init(struct kirkwood_dma_data *priv) |
f9b95980 | 386 | { |
387 | unsigned long value; | |
388 | unsigned int reg_data; | |
389 | ||
390 | /* put system in a "safe" state : */ | |
391 | /* disable audio interrupts */ | |
392 | writel(0xffffffff, priv->io + KIRKWOOD_INT_CAUSE); | |
393 | writel(0, priv->io + KIRKWOOD_INT_MASK); | |
394 | ||
395 | reg_data = readl(priv->io + 0x1200); | |
396 | reg_data &= (~(0x333FF8)); | |
397 | reg_data |= 0x111D18; | |
398 | writel(reg_data, priv->io + 0x1200); | |
399 | ||
400 | msleep(500); | |
401 | ||
402 | reg_data = readl(priv->io + 0x1200); | |
403 | reg_data &= (~(0x333FF8)); | |
404 | reg_data |= 0x111D18; | |
405 | writel(reg_data, priv->io + 0x1200); | |
406 | ||
407 | /* disable playback/record */ | |
408 | value = readl(priv->io + KIRKWOOD_PLAYCTL); | |
db43b16f | 409 | value &= ~KIRKWOOD_PLAYCTL_ENABLE_MASK; |
f9b95980 | 410 | writel(value, priv->io + KIRKWOOD_PLAYCTL); |
411 | ||
412 | value = readl(priv->io + KIRKWOOD_RECCTL); | |
52b896cf | 413 | value &= ~KIRKWOOD_RECCTL_ENABLE_MASK; |
f9b95980 | 414 | writel(value, priv->io + KIRKWOOD_RECCTL); |
415 | ||
416 | return 0; | |
417 | ||
418 | } | |
419 | ||
85e7652d | 420 | static const struct snd_soc_dai_ops kirkwood_i2s_dai_ops = { |
f0fba2ad | 421 | .startup = kirkwood_i2s_startup, |
f9b95980 | 422 | .trigger = kirkwood_i2s_trigger, |
423 | .hw_params = kirkwood_i2s_hw_params, | |
424 | .set_fmt = kirkwood_i2s_set_fmt, | |
425 | }; | |
426 | ||
75b9b65e JFM |
427 | static struct snd_soc_dai_driver kirkwood_i2s_dai[2] = { |
428 | { | |
429 | .name = "i2s", | |
430 | .id = 0, | |
431 | .playback = { | |
432 | .channels_min = 1, | |
433 | .channels_max = 2, | |
434 | .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | | |
435 | SNDRV_PCM_RATE_96000, | |
436 | .formats = KIRKWOOD_I2S_FORMATS, | |
437 | }, | |
438 | .capture = { | |
439 | .channels_min = 1, | |
440 | .channels_max = 2, | |
441 | .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | | |
442 | SNDRV_PCM_RATE_96000, | |
443 | .formats = KIRKWOOD_I2S_FORMATS, | |
444 | }, | |
445 | .ops = &kirkwood_i2s_dai_ops, | |
446 | }, | |
447 | { | |
448 | .name = "spdif", | |
449 | .id = 1, | |
f9b95980 | 450 | .playback = { |
451 | .channels_min = 1, | |
452 | .channels_max = 2, | |
9e12cbd9 MB |
453 | .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | |
454 | SNDRV_PCM_RATE_96000, | |
1c195ddb | 455 | .formats = KIRKWOOD_SPDIF_FORMATS, |
363589bf | 456 | }, |
f9b95980 | 457 | .capture = { |
458 | .channels_min = 1, | |
459 | .channels_max = 2, | |
9e12cbd9 MB |
460 | .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | |
461 | SNDRV_PCM_RATE_96000, | |
1c195ddb | 462 | .formats = KIRKWOOD_SPDIF_FORMATS, |
363589bf RK |
463 | }, |
464 | .ops = &kirkwood_i2s_dai_ops, | |
75b9b65e | 465 | }, |
363589bf RK |
466 | }; |
467 | ||
75b9b65e JFM |
468 | static struct snd_soc_dai_driver kirkwood_i2s_dai_extclk[2] = { |
469 | { | |
470 | .name = "i2s", | |
471 | .id = 0, | |
472 | .playback = { | |
473 | .channels_min = 1, | |
474 | .channels_max = 2, | |
02fc17c1 JFM |
475 | .rates = SNDRV_PCM_RATE_CONTINUOUS, |
476 | .rate_min = 5512, | |
477 | .rate_max = 192000, | |
75b9b65e JFM |
478 | .formats = KIRKWOOD_I2S_FORMATS, |
479 | }, | |
480 | .capture = { | |
481 | .channels_min = 1, | |
482 | .channels_max = 2, | |
02fc17c1 JFM |
483 | .rates = SNDRV_PCM_RATE_CONTINUOUS, |
484 | .rate_min = 5512, | |
485 | .rate_max = 192000, | |
75b9b65e JFM |
486 | .formats = KIRKWOOD_I2S_FORMATS, |
487 | }, | |
488 | .ops = &kirkwood_i2s_dai_ops, | |
489 | }, | |
490 | { | |
491 | .name = "spdif", | |
492 | .id = 1, | |
363589bf RK |
493 | .playback = { |
494 | .channels_min = 1, | |
495 | .channels_max = 2, | |
02fc17c1 JFM |
496 | .rates = SNDRV_PCM_RATE_CONTINUOUS, |
497 | .rate_min = 5512, | |
498 | .rate_max = 192000, | |
1c195ddb | 499 | .formats = KIRKWOOD_SPDIF_FORMATS, |
363589bf RK |
500 | }, |
501 | .capture = { | |
502 | .channels_min = 1, | |
503 | .channels_max = 2, | |
02fc17c1 JFM |
504 | .rates = SNDRV_PCM_RATE_CONTINUOUS, |
505 | .rate_min = 5512, | |
506 | .rate_max = 192000, | |
1c195ddb | 507 | .formats = KIRKWOOD_SPDIF_FORMATS, |
363589bf | 508 | }, |
f9b95980 | 509 | .ops = &kirkwood_i2s_dai_ops, |
75b9b65e | 510 | }, |
f9b95980 | 511 | }; |
f9b95980 | 512 | |
83d85f53 KM |
513 | static const struct snd_soc_component_driver kirkwood_i2s_component = { |
514 | .name = DRV_NAME, | |
515 | }; | |
516 | ||
34e15fbd | 517 | static int kirkwood_i2s_dev_probe(struct platform_device *pdev) |
f9b95980 | 518 | { |
363589bf | 519 | struct kirkwood_asoc_platform_data *data = pdev->dev.platform_data; |
75b9b65e | 520 | struct snd_soc_dai_driver *soc_dai = kirkwood_i2s_dai; |
f0fba2ad | 521 | struct kirkwood_dma_data *priv; |
363589bf | 522 | struct resource *mem; |
eb632318 | 523 | struct device_node *np = pdev->dev.of_node; |
f9b95980 | 524 | int err; |
525 | ||
dbc517bf | 526 | priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); |
f9b95980 | 527 | if (!priv) { |
528 | dev_err(&pdev->dev, "allocation failed\n"); | |
dbc517bf | 529 | return -ENOMEM; |
f9b95980 | 530 | } |
f0fba2ad | 531 | dev_set_drvdata(&pdev->dev, priv); |
f9b95980 | 532 | |
533 | mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
b25b5aa0 TR |
534 | priv->io = devm_ioremap_resource(&pdev->dev, mem); |
535 | if (IS_ERR(priv->io)) | |
536 | return PTR_ERR(priv->io); | |
f9b95980 | 537 | |
538 | priv->irq = platform_get_irq(pdev, 0); | |
539 | if (priv->irq <= 0) { | |
540 | dev_err(&pdev->dev, "platform_get_irq failed\n"); | |
dbc517bf | 541 | return -ENXIO; |
f9b95980 | 542 | } |
543 | ||
eb632318 JFM |
544 | if (np) { |
545 | priv->burst = 128; /* might be 32 or 128 */ | |
546 | } else if (data) { | |
547 | priv->burst = data->burst; | |
548 | } else { | |
549 | dev_err(&pdev->dev, "no DT nor platform data ?!\n"); | |
dbc517bf | 550 | return -EINVAL; |
f9b95980 | 551 | } |
552 | ||
eb632318 | 553 | priv->clk = devm_clk_get(&pdev->dev, np ? "internal" : NULL); |
e919c716 AL |
554 | if (IS_ERR(priv->clk)) { |
555 | dev_err(&pdev->dev, "no clock\n"); | |
dbc517bf | 556 | return PTR_ERR(priv->clk); |
e919c716 | 557 | } |
dbc517bf RK |
558 | |
559 | err = clk_prepare_enable(priv->clk); | |
560 | if (err < 0) | |
561 | return err; | |
e919c716 | 562 | |
4734dc96 | 563 | priv->extclk = devm_clk_get(&pdev->dev, "extclk"); |
84aac6c7 JFM |
564 | if (IS_ERR(priv->extclk)) { |
565 | if (PTR_ERR(priv->extclk) == -EPROBE_DEFER) | |
566 | return -EPROBE_DEFER; | |
567 | } else { | |
d8d11ba5 | 568 | if (priv->extclk == priv->clk) { |
af64d734 | 569 | devm_clk_put(&pdev->dev, priv->extclk); |
d8d11ba5 RK |
570 | priv->extclk = ERR_PTR(-EINVAL); |
571 | } else { | |
572 | dev_info(&pdev->dev, "found external clock\n"); | |
573 | clk_prepare_enable(priv->extclk); | |
99d8d3ba | 574 | soc_dai = kirkwood_i2s_dai_extclk; |
d8d11ba5 RK |
575 | } |
576 | } | |
577 | ||
578 | /* Some sensible defaults - this reflects the powerup values */ | |
579 | priv->ctl_play = KIRKWOOD_PLAYCTL_SIZE_24; | |
580 | priv->ctl_rec = KIRKWOOD_RECCTL_SIZE_24; | |
581 | ||
582 | /* Select the burst size */ | |
eb632318 | 583 | if (priv->burst == 32) { |
d8d11ba5 RK |
584 | priv->ctl_play |= KIRKWOOD_PLAYCTL_BURST_32; |
585 | priv->ctl_rec |= KIRKWOOD_RECCTL_BURST_32; | |
586 | } else { | |
587 | priv->ctl_play |= KIRKWOOD_PLAYCTL_BURST_128; | |
588 | priv->ctl_rec |= KIRKWOOD_RECCTL_BURST_128; | |
589 | } | |
590 | ||
83d85f53 | 591 | err = snd_soc_register_component(&pdev->dev, &kirkwood_i2s_component, |
75b9b65e | 592 | soc_dai, 2); |
64ddf1f8 RK |
593 | if (err) { |
594 | dev_err(&pdev->dev, "snd_soc_register_component failed\n"); | |
595 | goto err_component; | |
596 | } | |
baffab28 | 597 | |
64ddf1f8 RK |
598 | err = snd_soc_register_platform(&pdev->dev, &kirkwood_soc_platform); |
599 | if (err) { | |
600 | dev_err(&pdev->dev, "snd_soc_register_platform failed\n"); | |
601 | goto err_platform; | |
602 | } | |
75b9b65e JFM |
603 | |
604 | kirkwood_i2s_init(priv); | |
605 | ||
64ddf1f8 RK |
606 | return 0; |
607 | err_platform: | |
608 | snd_soc_unregister_component(&pdev->dev); | |
609 | err_component: | |
4734dc96 | 610 | if (!IS_ERR(priv->extclk)) |
363589bf | 611 | clk_disable_unprepare(priv->extclk); |
baffab28 | 612 | clk_disable_unprepare(priv->clk); |
dbc517bf | 613 | |
f9b95980 | 614 | return err; |
615 | } | |
616 | ||
34e15fbd | 617 | static int kirkwood_i2s_dev_remove(struct platform_device *pdev) |
f9b95980 | 618 | { |
f0fba2ad LG |
619 | struct kirkwood_dma_data *priv = dev_get_drvdata(&pdev->dev); |
620 | ||
64ddf1f8 | 621 | snd_soc_unregister_platform(&pdev->dev); |
83d85f53 | 622 | snd_soc_unregister_component(&pdev->dev); |
e919c716 | 623 | |
4734dc96 | 624 | if (!IS_ERR(priv->extclk)) |
363589bf | 625 | clk_disable_unprepare(priv->extclk); |
e919c716 | 626 | clk_disable_unprepare(priv->clk); |
f0fba2ad | 627 | |
f9b95980 | 628 | return 0; |
629 | } | |
630 | ||
eb632318 JFM |
631 | #ifdef CONFIG_OF |
632 | static struct of_device_id mvebu_audio_of_match[] = { | |
d098b2f0 TP |
633 | { .compatible = "marvell,kirkwood-audio" }, |
634 | { .compatible = "marvell,dove-audio" }, | |
9a0d5113 | 635 | { .compatible = "marvell,armada370-audio" }, |
eb632318 JFM |
636 | { } |
637 | }; | |
638 | MODULE_DEVICE_TABLE(of, mvebu_audio_of_match); | |
639 | #endif | |
640 | ||
f9b95980 | 641 | static struct platform_driver kirkwood_i2s_driver = { |
642 | .probe = kirkwood_i2s_dev_probe, | |
34e15fbd | 643 | .remove = kirkwood_i2s_dev_remove, |
f9b95980 | 644 | .driver = { |
645 | .name = DRV_NAME, | |
646 | .owner = THIS_MODULE, | |
eb632318 | 647 | .of_match_table = of_match_ptr(mvebu_audio_of_match), |
f9b95980 | 648 | }, |
649 | }; | |
650 | ||
41b10225 | 651 | module_platform_driver(kirkwood_i2s_driver); |
f9b95980 | 652 | |
653 | /* Module information */ | |
69737897 | 654 | MODULE_AUTHOR("Arnaud Patard, <arnaud.patard@rtp-net.org>"); |
f9b95980 | 655 | MODULE_DESCRIPTION("Kirkwood I2S SoC Interface"); |
656 | MODULE_LICENSE("GPL"); | |
64ddf1f8 | 657 | MODULE_ALIAS("platform:mvebu-audio"); |