Commit | Line | Data |
---|---|---|
f2390880 KM |
1 | /* |
2 | * ASoC simple sound card support | |
3 | * | |
4 | * Copyright (C) 2012 Renesas Solutions Corp. | |
5 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
fa558c28 | 11 | #include <linux/clk.h> |
6ff62eed | 12 | #include <linux/device.h> |
3fe24032 | 13 | #include <linux/gpio.h> |
f2390880 | 14 | #include <linux/module.h> |
fa558c28 | 15 | #include <linux/of.h> |
3fe24032 | 16 | #include <linux/of_gpio.h> |
f2390880 | 17 | #include <linux/platform_device.h> |
ca919fe4 | 18 | #include <linux/string.h> |
3fe24032 | 19 | #include <sound/jack.h> |
f2390880 | 20 | #include <sound/simple_card.h> |
6ff62eed XL |
21 | #include <sound/soc-dai.h> |
22 | #include <sound/soc.h> | |
f2390880 | 23 | |
9eac3618 KM |
24 | struct asoc_simple_jack { |
25 | struct snd_soc_jack jack; | |
26 | struct snd_soc_jack_pin pin; | |
27 | struct snd_soc_jack_gpio gpio; | |
28 | }; | |
29 | ||
45fce594 JFM |
30 | struct simple_card_data { |
31 | struct snd_soc_card snd_card; | |
cf7dc23c JFM |
32 | struct simple_dai_props { |
33 | struct asoc_simple_dai cpu_dai; | |
34 | struct asoc_simple_dai codec_dai; | |
85a4bfd8 | 35 | unsigned int mclk_fs; |
cf7dc23c | 36 | } *dai_props; |
2942a0e2 | 37 | unsigned int mclk_fs; |
9eac3618 KM |
38 | struct asoc_simple_jack hp_jack; |
39 | struct asoc_simple_jack mic_jack; | |
cf7dc23c | 40 | struct snd_soc_dai_link dai_link[]; /* dynamically allocated */ |
45fce594 JFM |
41 | }; |
42 | ||
f531913f | 43 | #define simple_priv_to_dev(priv) ((priv)->snd_card.dev) |
9810f537 KM |
44 | #define simple_priv_to_link(priv, i) ((priv)->snd_card.dai_link + i) |
45 | #define simple_priv_to_props(priv, i) ((priv)->dai_props + i) | |
f531913f | 46 | |
548563fa KM |
47 | #define PREFIX "simple-audio-card," |
48 | ||
9eac3618 KM |
49 | #define asoc_simple_card_init_hp(card, sjack, prefix)\ |
50 | asoc_simple_card_init_jack(card, sjack, 1, prefix) | |
51 | #define asoc_simple_card_init_mic(card, sjack, prefix)\ | |
52 | asoc_simple_card_init_jack(card, sjack, 0, prefix) | |
53 | static int asoc_simple_card_init_jack(struct snd_soc_card *card, | |
54 | struct asoc_simple_jack *sjack, | |
55 | int is_hp, char *prefix) | |
56 | { | |
57 | struct device *dev = card->dev; | |
58 | enum of_gpio_flags flags; | |
59 | char prop[128]; | |
60 | char *pin_name; | |
61 | char *gpio_name; | |
62 | int mask; | |
63 | int det; | |
64 | ||
65 | sjack->gpio.gpio = -ENOENT; | |
66 | ||
67 | if (is_hp) { | |
68 | snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix); | |
69 | pin_name = "Headphones"; | |
70 | gpio_name = "Headphone detection"; | |
71 | mask = SND_JACK_HEADPHONE; | |
72 | } else { | |
73 | snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix); | |
74 | pin_name = "Mic Jack"; | |
75 | gpio_name = "Mic detection"; | |
76 | mask = SND_JACK_MICROPHONE; | |
77 | } | |
78 | ||
79 | det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags); | |
80 | if (det == -EPROBE_DEFER) | |
81 | return -EPROBE_DEFER; | |
82 | ||
83 | if (gpio_is_valid(det)) { | |
84 | sjack->pin.pin = pin_name; | |
85 | sjack->pin.mask = mask; | |
86 | ||
87 | sjack->gpio.name = gpio_name; | |
88 | sjack->gpio.report = mask; | |
89 | sjack->gpio.gpio = det; | |
90 | sjack->gpio.invert = !!(flags & OF_GPIO_ACTIVE_LOW); | |
91 | sjack->gpio.debounce_time = 150; | |
92 | ||
93 | snd_soc_card_jack_new(card, pin_name, mask, | |
94 | &sjack->jack, | |
95 | &sjack->pin, 1); | |
96 | ||
97 | snd_soc_jack_add_gpios(&sjack->jack, 1, | |
98 | &sjack->gpio); | |
99 | } | |
100 | ||
101 | return 0; | |
102 | } | |
103 | ||
104 | static void asoc_simple_card_remove_jack(struct asoc_simple_jack *sjack) | |
105 | { | |
106 | if (gpio_is_valid(sjack->gpio.gpio)) | |
107 | snd_soc_jack_free_gpios(&sjack->jack, 1, &sjack->gpio); | |
108 | } | |
109 | ||
f9911803 JS |
110 | static int asoc_simple_card_startup(struct snd_pcm_substream *substream) |
111 | { | |
112 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
113 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); | |
114 | struct simple_dai_props *dai_props = | |
1a497983 | 115 | &priv->dai_props[rtd->num]; |
f9911803 JS |
116 | int ret; |
117 | ||
118 | ret = clk_prepare_enable(dai_props->cpu_dai.clk); | |
119 | if (ret) | |
120 | return ret; | |
121 | ||
122 | ret = clk_prepare_enable(dai_props->codec_dai.clk); | |
123 | if (ret) | |
124 | clk_disable_unprepare(dai_props->cpu_dai.clk); | |
125 | ||
126 | return ret; | |
127 | } | |
128 | ||
129 | static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream) | |
130 | { | |
131 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
132 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); | |
133 | struct simple_dai_props *dai_props = | |
1a497983 | 134 | &priv->dai_props[rtd->num]; |
f9911803 JS |
135 | |
136 | clk_disable_unprepare(dai_props->cpu_dai.clk); | |
137 | ||
138 | clk_disable_unprepare(dai_props->codec_dai.clk); | |
139 | } | |
140 | ||
2942a0e2 AL |
141 | static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream, |
142 | struct snd_pcm_hw_params *params) | |
143 | { | |
144 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
145 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
e2257971 | 146 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2942a0e2 | 147 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); |
1a497983 | 148 | struct simple_dai_props *dai_props = &priv->dai_props[rtd->num]; |
85a4bfd8 | 149 | unsigned int mclk, mclk_fs = 0; |
2942a0e2 AL |
150 | int ret = 0; |
151 | ||
85a4bfd8 AP |
152 | if (priv->mclk_fs) |
153 | mclk_fs = priv->mclk_fs; | |
154 | else if (dai_props->mclk_fs) | |
155 | mclk_fs = dai_props->mclk_fs; | |
156 | ||
157 | if (mclk_fs) { | |
158 | mclk = params_rate(params) * mclk_fs; | |
2942a0e2 AL |
159 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, |
160 | SND_SOC_CLOCK_IN); | |
e2257971 AP |
161 | if (ret && ret != -ENOTSUPP) |
162 | goto err; | |
163 | ||
164 | ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, | |
165 | SND_SOC_CLOCK_OUT); | |
166 | if (ret && ret != -ENOTSUPP) | |
167 | goto err; | |
2942a0e2 | 168 | } |
ee43a1a0 | 169 | return 0; |
e2257971 | 170 | err: |
2942a0e2 AL |
171 | return ret; |
172 | } | |
173 | ||
174 | static struct snd_soc_ops asoc_simple_card_ops = { | |
f9911803 JS |
175 | .startup = asoc_simple_card_startup, |
176 | .shutdown = asoc_simple_card_shutdown, | |
2942a0e2 AL |
177 | .hw_params = asoc_simple_card_hw_params, |
178 | }; | |
179 | ||
a4a2992c | 180 | static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai, |
30d0341e | 181 | struct asoc_simple_dai *set) |
a4a2992c | 182 | { |
4763ebe2 | 183 | int ret; |
a4a2992c | 184 | |
4763ebe2 | 185 | if (set->sysclk) { |
a4a2992c | 186 | ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0); |
4763ebe2 XL |
187 | if (ret && ret != -ENOTSUPP) { |
188 | dev_err(dai->dev, "simple-card: set_sysclk error\n"); | |
189 | goto err; | |
190 | } | |
191 | } | |
192 | ||
6ff62eed | 193 | if (set->slots) { |
6131084a JS |
194 | ret = snd_soc_dai_set_tdm_slot(dai, |
195 | set->tx_slot_mask, | |
196 | set->rx_slot_mask, | |
6ff62eed XL |
197 | set->slots, |
198 | set->slot_width); | |
199 | if (ret && ret != -ENOTSUPP) { | |
200 | dev_err(dai->dev, "simple-card: set_tdm_slot error\n"); | |
201 | goto err; | |
202 | } | |
203 | } | |
204 | ||
4763ebe2 | 205 | ret = 0; |
a4a2992c | 206 | |
4763ebe2 | 207 | err: |
a4a2992c KM |
208 | return ret; |
209 | } | |
210 | ||
f2390880 KM |
211 | static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) |
212 | { | |
781cbebe | 213 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); |
f2390880 KM |
214 | struct snd_soc_dai *codec = rtd->codec_dai; |
215 | struct snd_soc_dai *cpu = rtd->cpu_dai; | |
6a91a17b | 216 | struct simple_dai_props *dai_props; |
1a497983 | 217 | int ret; |
f2390880 | 218 | |
1a497983 | 219 | dai_props = &priv->dai_props[rtd->num]; |
6a91a17b | 220 | ret = __asoc_simple_card_dai_init(codec, &dai_props->codec_dai); |
a4a2992c KM |
221 | if (ret < 0) |
222 | return ret; | |
f2390880 | 223 | |
6a91a17b | 224 | ret = __asoc_simple_card_dai_init(cpu, &dai_props->cpu_dai); |
a4a2992c KM |
225 | if (ret < 0) |
226 | return ret; | |
f2390880 | 227 | |
9eac3618 KM |
228 | ret = asoc_simple_card_init_hp(rtd->card, &priv->hp_jack, PREFIX); |
229 | if (ret < 0) | |
230 | return ret; | |
231 | ||
232 | ret = asoc_simple_card_init_mic(rtd->card, &priv->hp_jack, PREFIX); | |
233 | if (ret < 0) | |
234 | return ret; | |
3fe24032 | 235 | |
f2390880 KM |
236 | return 0; |
237 | } | |
238 | ||
fa558c28 KM |
239 | static int |
240 | asoc_simple_card_sub_parse_of(struct device_node *np, | |
241 | struct asoc_simple_dai *dai, | |
8ea21348 | 242 | struct device_node **p_node, |
7c7b9cf5 KM |
243 | const char **name, |
244 | int *args_count) | |
fa558c28 | 245 | { |
7c7b9cf5 | 246 | struct of_phandle_args args; |
fa558c28 | 247 | struct clk *clk; |
c7099eb1 | 248 | u32 val; |
fa558c28 KM |
249 | int ret; |
250 | ||
5fb9cb16 KM |
251 | if (!np) |
252 | return 0; | |
253 | ||
fa558c28 | 254 | /* |
0dd4fc3c | 255 | * Get node via "sound-dai = <&phandle port>" |
fa558c28 KM |
256 | * it will be used as xxx_of_node on soc_bind_dai_link() |
257 | */ | |
7c7b9cf5 KM |
258 | ret = of_parse_phandle_with_args(np, "sound-dai", |
259 | "#sound-dai-cells", 0, &args); | |
260 | if (ret) | |
261 | return ret; | |
262 | ||
263 | *p_node = args.np; | |
264 | ||
265 | if (args_count) | |
266 | *args_count = args.args_count; | |
fa558c28 | 267 | |
0dd4fc3c | 268 | /* Get dai->name */ |
5fb9cb16 KM |
269 | if (name) { |
270 | ret = snd_soc_of_get_dai_name(np, name); | |
271 | if (ret < 0) | |
272 | return ret; | |
273 | } | |
274 | ||
275 | if (!dai) | |
276 | return 0; | |
fa558c28 | 277 | |
0dd4fc3c | 278 | /* Parse TDM slot */ |
6131084a JS |
279 | ret = snd_soc_of_parse_tdm_slot(np, &dai->tx_slot_mask, |
280 | &dai->rx_slot_mask, | |
281 | &dai->slots, &dai->slot_width); | |
6ff62eed | 282 | if (ret) |
e512e001 | 283 | return ret; |
6ff62eed | 284 | |
fa558c28 | 285 | /* |
0dd4fc3c XL |
286 | * Parse dai->sysclk come from "clocks = <&xxx>" |
287 | * (if system has common clock) | |
fa558c28 | 288 | * or "system-clock-frequency = <xxx>" |
71467e46 | 289 | * or device's module clock. |
fa558c28 | 290 | */ |
71467e46 XL |
291 | if (of_property_read_bool(np, "clocks")) { |
292 | clk = of_clk_get(np, 0); | |
293 | if (IS_ERR(clk)) { | |
294 | ret = PTR_ERR(clk); | |
e512e001 | 295 | return ret; |
71467e46 XL |
296 | } |
297 | ||
298 | dai->sysclk = clk_get_rate(clk); | |
f9911803 | 299 | dai->clk = clk; |
c7099eb1 JS |
300 | } else if (!of_property_read_u32(np, "system-clock-frequency", &val)) { |
301 | dai->sysclk = val; | |
71467e46 | 302 | } else { |
88a60e55 | 303 | clk = of_clk_get(args.np, 0); |
e2a19ac6 XL |
304 | if (!IS_ERR(clk)) |
305 | dai->sysclk = clk_get_rate(clk); | |
71467e46 | 306 | } |
fa558c28 | 307 | |
e512e001 | 308 | return 0; |
fa558c28 KM |
309 | } |
310 | ||
2d82eeb0 | 311 | static int asoc_simple_card_dai_link_of(struct device_node *node, |
f531913f | 312 | struct simple_card_data *priv, |
9810f537 | 313 | int idx, |
2d82eeb0 | 314 | bool is_top_level_node) |
6a91a17b | 315 | { |
f531913f | 316 | struct device *dev = simple_priv_to_dev(priv); |
9810f537 KM |
317 | struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx); |
318 | struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx); | |
1b5721b2 | 319 | struct device_node *cpu = NULL; |
e0ae225b | 320 | struct device_node *plat = NULL; |
1b5721b2 | 321 | struct device_node *codec = NULL; |
b3ca11ff JS |
322 | char prop[128]; |
323 | char *prefix = ""; | |
7c7b9cf5 | 324 | int ret, cpu_args; |
85a4bfd8 | 325 | u32 val; |
6a91a17b | 326 | |
2080437d | 327 | /* For single DAI link & old style of DT node */ |
64872215 | 328 | if (is_top_level_node) |
548563fa | 329 | prefix = PREFIX; |
b3ca11ff | 330 | |
b3ca11ff | 331 | snprintf(prop, sizeof(prop), "%scpu", prefix); |
1b5721b2 KM |
332 | cpu = of_get_child_by_name(node, prop); |
333 | ||
e0ae225b JN |
334 | snprintf(prop, sizeof(prop), "%splat", prefix); |
335 | plat = of_get_child_by_name(node, prop); | |
336 | ||
1b5721b2 KM |
337 | snprintf(prop, sizeof(prop), "%scodec", prefix); |
338 | codec = of_get_child_by_name(node, prop); | |
339 | ||
340 | if (!cpu || !codec) { | |
b3ca11ff | 341 | ret = -EINVAL; |
966b8063 | 342 | dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop); |
b3ca11ff | 343 | goto dai_link_of_err; |
6a91a17b | 344 | } |
b3ca11ff | 345 | |
cecdef36 KM |
346 | ret = asoc_simple_card_parse_daifmt(dev, node, codec, |
347 | prefix, &dai_link->dai_fmt); | |
1b5721b2 KM |
348 | if (ret < 0) |
349 | goto dai_link_of_err; | |
350 | ||
85a4bfd8 AP |
351 | if (!of_property_read_u32(node, "mclk-fs", &val)) |
352 | dai_props->mclk_fs = val; | |
353 | ||
1b5721b2 | 354 | ret = asoc_simple_card_sub_parse_of(cpu, &dai_props->cpu_dai, |
b3ca11ff | 355 | &dai_link->cpu_of_node, |
7c7b9cf5 KM |
356 | &dai_link->cpu_dai_name, |
357 | &cpu_args); | |
6a91a17b | 358 | if (ret < 0) |
b3ca11ff JS |
359 | goto dai_link_of_err; |
360 | ||
1b5721b2 | 361 | ret = asoc_simple_card_sub_parse_of(codec, &dai_props->codec_dai, |
b3ca11ff | 362 | &dai_link->codec_of_node, |
7c7b9cf5 | 363 | &dai_link->codec_dai_name, NULL); |
b3ca11ff JS |
364 | if (ret < 0) |
365 | goto dai_link_of_err; | |
366 | ||
5fb9cb16 KM |
367 | ret = asoc_simple_card_sub_parse_of(plat, NULL, |
368 | &dai_link->platform_of_node, | |
369 | NULL, NULL); | |
370 | if (ret < 0) | |
371 | goto dai_link_of_err; | |
372 | ||
b3ca11ff | 373 | if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) { |
781cbebe NC |
374 | ret = -EINVAL; |
375 | goto dai_link_of_err; | |
b3ca11ff JS |
376 | } |
377 | ||
5fb9cb16 KM |
378 | /* Assumes platform == cpu */ |
379 | if (!dai_link->platform_of_node) | |
e0ae225b | 380 | dai_link->platform_of_node = dai_link->cpu_of_node; |
b3ca11ff | 381 | |
2e8d1c7d KM |
382 | ret = asoc_simple_card_set_dailink_name(dev, dai_link, |
383 | "%s-%s", | |
384 | dai_link->cpu_dai_name, | |
385 | dai_link->codec_dai_name); | |
386 | if (ret < 0) | |
31f3032c | 387 | goto dai_link_of_err; |
31f3032c | 388 | |
2942a0e2 | 389 | dai_link->ops = &asoc_simple_card_ops; |
a5960bd5 | 390 | dai_link->init = asoc_simple_card_dai_init; |
b3ca11ff JS |
391 | |
392 | dev_dbg(dev, "\tname : %s\n", dai_link->stream_name); | |
1efb53a2 LPC |
393 | dev_dbg(dev, "\tformat : %04x\n", dai_link->dai_fmt); |
394 | dev_dbg(dev, "\tcpu : %s / %d\n", | |
b3ca11ff | 395 | dai_link->cpu_dai_name, |
b3ca11ff | 396 | dai_props->cpu_dai.sysclk); |
1efb53a2 | 397 | dev_dbg(dev, "\tcodec : %s / %d\n", |
b3ca11ff | 398 | dai_link->codec_dai_name, |
b3ca11ff JS |
399 | dai_props->codec_dai.sysclk); |
400 | ||
179949bc | 401 | /* |
0dd4fc3c XL |
402 | * In soc_bind_dai_link() will check cpu name after |
403 | * of_node matching if dai_link has cpu_dai_name. | |
404 | * but, it will never match if name was created by | |
405 | * fmt_single_name() remove cpu_dai_name if cpu_args | |
406 | * was 0. See: | |
179949bc KM |
407 | * fmt_single_name() |
408 | * fmt_multiple_name() | |
409 | */ | |
7c7b9cf5 KM |
410 | if (!cpu_args) |
411 | dai_link->cpu_dai_name = NULL; | |
179949bc | 412 | |
b3ca11ff | 413 | dai_link_of_err: |
1b5721b2 KM |
414 | of_node_put(cpu); |
415 | of_node_put(codec); | |
416 | ||
6a91a17b JFM |
417 | return ret; |
418 | } | |
419 | ||
fa558c28 | 420 | static int asoc_simple_card_parse_of(struct device_node *node, |
f531913f | 421 | struct simple_card_data *priv) |
fa558c28 | 422 | { |
f531913f | 423 | struct device *dev = simple_priv_to_dev(priv); |
c7099eb1 | 424 | u32 val; |
d4c22094 | 425 | int ret; |
fa558c28 | 426 | |
2080437d XL |
427 | if (!node) |
428 | return -EINVAL; | |
429 | ||
0dd4fc3c | 430 | /* Parse the card name from DT */ |
548563fa | 431 | snd_soc_of_parse_card_name(&priv->snd_card, PREFIX "name"); |
2772555b | 432 | |
0dd4fc3c | 433 | /* The off-codec widgets */ |
548563fa | 434 | if (of_property_read_bool(node, PREFIX "widgets")) { |
9d681f5b | 435 | ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card, |
548563fa | 436 | PREFIX "widgets"); |
9d681f5b XL |
437 | if (ret) |
438 | return ret; | |
439 | } | |
440 | ||
d4c22094 | 441 | /* DAPM routes */ |
548563fa | 442 | if (of_property_read_bool(node, PREFIX "routing")) { |
b367a325 | 443 | ret = snd_soc_of_parse_audio_routing(&priv->snd_card, |
548563fa | 444 | PREFIX "routing"); |
f87a3e82 XL |
445 | if (ret) |
446 | return ret; | |
447 | } | |
d4c22094 | 448 | |
2942a0e2 | 449 | /* Factor to mclk, used in hw_params() */ |
548563fa | 450 | ret = of_property_read_u32(node, PREFIX "mclk-fs", &val); |
c7099eb1 JS |
451 | if (ret == 0) |
452 | priv->mclk_fs = val; | |
2942a0e2 | 453 | |
b3ca11ff JS |
454 | dev_dbg(dev, "New simple-card: %s\n", priv->snd_card.name ? |
455 | priv->snd_card.name : ""); | |
456 | ||
2080437d | 457 | /* Single/Muti DAI link(s) & New style of DT node */ |
548563fa | 458 | if (of_get_child_by_name(node, PREFIX "dai-link")) { |
b3ca11ff | 459 | struct device_node *np = NULL; |
a44a750e KM |
460 | int i = 0; |
461 | ||
462 | for_each_child_of_node(node, np) { | |
b3ca11ff | 463 | dev_dbg(dev, "\tlink %d:\n", i); |
f531913f | 464 | ret = asoc_simple_card_dai_link_of(np, priv, |
9810f537 | 465 | i, false); |
b3ca11ff JS |
466 | if (ret < 0) { |
467 | of_node_put(np); | |
468 | return ret; | |
469 | } | |
a44a750e | 470 | i++; |
6a91a17b | 471 | } |
b3ca11ff | 472 | } else { |
2080437d | 473 | /* For single DAI link & old style of DT node */ |
9810f537 | 474 | ret = asoc_simple_card_dai_link_of(node, priv, 0, true); |
6a91a17b | 475 | if (ret < 0) |
b3ca11ff | 476 | return ret; |
6a91a17b | 477 | } |
dd41e0c4 | 478 | |
2772555b | 479 | if (!priv->snd_card.name) |
b3ca11ff | 480 | priv->snd_card.name = priv->snd_card.dai_link->name; |
f687d900 | 481 | |
fa558c28 KM |
482 | return 0; |
483 | } | |
484 | ||
0dd4fc3c | 485 | /* Decrease the reference count of the device nodes */ |
7ddfdb5c | 486 | static int asoc_simple_card_unref(struct snd_soc_card *card) |
e512e001 | 487 | { |
e512e001 | 488 | struct snd_soc_dai_link *dai_link; |
e512e001 JFM |
489 | int num_links; |
490 | ||
491 | for (num_links = 0, dai_link = card->dai_link; | |
492 | num_links < card->num_links; | |
493 | num_links++, dai_link++) { | |
0099c762 JFM |
494 | of_node_put(dai_link->cpu_of_node); |
495 | of_node_put(dai_link->codec_of_node); | |
e512e001 JFM |
496 | } |
497 | return 0; | |
498 | } | |
499 | ||
f2390880 KM |
500 | static int asoc_simple_card_probe(struct platform_device *pdev) |
501 | { | |
45fce594 | 502 | struct simple_card_data *priv; |
5ca8ba41 | 503 | struct snd_soc_dai_link *dai_link; |
fa558c28 | 504 | struct device_node *np = pdev->dev.of_node; |
f89983ef | 505 | struct device *dev = &pdev->dev; |
2080437d | 506 | int num_links, ret; |
6a91a17b | 507 | |
0dd4fc3c | 508 | /* Get the number of DAI links */ |
548563fa | 509 | if (np && of_get_child_by_name(np, PREFIX "dai-link")) |
6a91a17b | 510 | num_links = of_get_child_count(np); |
2080437d | 511 | else |
6a91a17b | 512 | num_links = 1; |
f2390880 | 513 | |
0dd4fc3c | 514 | /* Allocate the private data and the DAI link array */ |
cf7dc23c | 515 | priv = devm_kzalloc(dev, |
6a91a17b | 516 | sizeof(*priv) + sizeof(*dai_link) * num_links, |
cf7dc23c | 517 | GFP_KERNEL); |
ca65b492 | 518 | if (!priv) |
ca919fe4 XL |
519 | return -ENOMEM; |
520 | ||
0dd4fc3c | 521 | /* Init snd_soc_card */ |
ca65b492 JFM |
522 | priv->snd_card.owner = THIS_MODULE; |
523 | priv->snd_card.dev = dev; | |
cf7dc23c | 524 | dai_link = priv->dai_link; |
ca65b492 | 525 | priv->snd_card.dai_link = dai_link; |
6a91a17b | 526 | priv->snd_card.num_links = num_links; |
201a0eac | 527 | |
0dd4fc3c | 528 | /* Get room for the other properties */ |
cf7dc23c | 529 | priv->dai_props = devm_kzalloc(dev, |
6a91a17b | 530 | sizeof(*priv->dai_props) * num_links, |
cf7dc23c JFM |
531 | GFP_KERNEL); |
532 | if (!priv->dai_props) | |
533 | return -ENOMEM; | |
534 | ||
fa558c28 | 535 | if (np && of_device_is_available(np)) { |
ca919fe4 | 536 | |
f531913f | 537 | ret = asoc_simple_card_parse_of(np, priv); |
ca919fe4 XL |
538 | if (ret < 0) { |
539 | if (ret != -EPROBE_DEFER) | |
540 | dev_err(dev, "parse error %d\n", ret); | |
e512e001 | 541 | goto err; |
fa558c28 | 542 | } |
6a91a17b | 543 | |
fa558c28 | 544 | } else { |
ca65b492 JFM |
545 | struct asoc_simple_card_info *cinfo; |
546 | ||
547 | cinfo = dev->platform_data; | |
548 | if (!cinfo) { | |
34787d0a XL |
549 | dev_err(dev, "no info for asoc-simple-card\n"); |
550 | return -EINVAL; | |
551 | } | |
fa558c28 | 552 | |
781cbebe NC |
553 | if (!cinfo->name || |
554 | !cinfo->codec_dai.name || | |
555 | !cinfo->codec || | |
556 | !cinfo->platform || | |
7722f830 JFM |
557 | !cinfo->cpu_dai.name) { |
558 | dev_err(dev, "insufficient asoc_simple_card_info settings\n"); | |
559 | return -EINVAL; | |
560 | } | |
2bee9914 | 561 | |
12ffa6fc | 562 | priv->snd_card.name = (cinfo->card) ? cinfo->card : cinfo->name; |
5ca8ba41 JFM |
563 | dai_link->name = cinfo->name; |
564 | dai_link->stream_name = cinfo->name; | |
565 | dai_link->platform_name = cinfo->platform; | |
566 | dai_link->codec_name = cinfo->codec; | |
52008472 JFM |
567 | dai_link->cpu_dai_name = cinfo->cpu_dai.name; |
568 | dai_link->codec_dai_name = cinfo->codec_dai.name; | |
1efb53a2 | 569 | dai_link->dai_fmt = cinfo->daifmt; |
a5960bd5 | 570 | dai_link->init = asoc_simple_card_dai_init; |
cf7dc23c JFM |
571 | memcpy(&priv->dai_props->cpu_dai, &cinfo->cpu_dai, |
572 | sizeof(priv->dai_props->cpu_dai)); | |
573 | memcpy(&priv->dai_props->codec_dai, &cinfo->codec_dai, | |
574 | sizeof(priv->dai_props->codec_dai)); | |
81985bd6 | 575 | |
f2390880 KM |
576 | } |
577 | ||
ca65b492 | 578 | snd_soc_card_set_drvdata(&priv->snd_card, priv); |
f2390880 | 579 | |
e512e001 | 580 | ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card); |
e3c4a28b XL |
581 | if (ret >= 0) |
582 | return ret; | |
e512e001 JFM |
583 | |
584 | err: | |
7ddfdb5c | 585 | asoc_simple_card_unref(&priv->snd_card); |
e512e001 | 586 | return ret; |
f2390880 KM |
587 | } |
588 | ||
e3c4a28b XL |
589 | static int asoc_simple_card_remove(struct platform_device *pdev) |
590 | { | |
3fe24032 DR |
591 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
592 | struct simple_card_data *priv = snd_soc_card_get_drvdata(card); | |
593 | ||
9eac3618 KM |
594 | asoc_simple_card_remove_jack(&priv->hp_jack); |
595 | asoc_simple_card_remove_jack(&priv->mic_jack); | |
3fe24032 | 596 | |
7ddfdb5c | 597 | return asoc_simple_card_unref(card); |
e3c4a28b XL |
598 | } |
599 | ||
fa558c28 KM |
600 | static const struct of_device_id asoc_simple_of_match[] = { |
601 | { .compatible = "simple-audio-card", }, | |
602 | {}, | |
603 | }; | |
604 | MODULE_DEVICE_TABLE(of, asoc_simple_of_match); | |
605 | ||
f2390880 KM |
606 | static struct platform_driver asoc_simple_card = { |
607 | .driver = { | |
781cbebe | 608 | .name = "asoc-simple-card", |
7c376711 | 609 | .pm = &snd_soc_pm_ops, |
fa558c28 | 610 | .of_match_table = asoc_simple_of_match, |
f2390880 | 611 | }, |
781cbebe | 612 | .probe = asoc_simple_card_probe, |
e3c4a28b | 613 | .remove = asoc_simple_card_remove, |
f2390880 KM |
614 | }; |
615 | ||
616 | module_platform_driver(asoc_simple_card); | |
617 | ||
c445be35 | 618 | MODULE_ALIAS("platform:asoc-simple-card"); |
f2390880 KM |
619 | MODULE_LICENSE("GPL"); |
620 | MODULE_DESCRIPTION("ASoC Simple Sound Card"); | |
621 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); |