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 | |
45fce594 JFM |
24 | struct simple_card_data { |
25 | struct snd_soc_card snd_card; | |
cf7dc23c JFM |
26 | struct simple_dai_props { |
27 | struct asoc_simple_dai cpu_dai; | |
28 | struct asoc_simple_dai codec_dai; | |
29 | } *dai_props; | |
2942a0e2 | 30 | unsigned int mclk_fs; |
3fe24032 | 31 | int gpio_hp_det; |
4476159f | 32 | int gpio_hp_det_invert; |
3fe24032 | 33 | int gpio_mic_det; |
4476159f | 34 | int gpio_mic_det_invert; |
cf7dc23c | 35 | struct snd_soc_dai_link dai_link[]; /* dynamically allocated */ |
45fce594 JFM |
36 | }; |
37 | ||
f531913f | 38 | #define simple_priv_to_dev(priv) ((priv)->snd_card.dev) |
9810f537 KM |
39 | #define simple_priv_to_link(priv, i) ((priv)->snd_card.dai_link + i) |
40 | #define simple_priv_to_props(priv, i) ((priv)->dai_props + i) | |
f531913f | 41 | |
2942a0e2 AL |
42 | static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream, |
43 | struct snd_pcm_hw_params *params) | |
44 | { | |
45 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
46 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
47 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); | |
48 | unsigned int mclk; | |
49 | int ret = 0; | |
50 | ||
51 | if (priv->mclk_fs) { | |
52 | mclk = params_rate(params) * priv->mclk_fs; | |
53 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, | |
54 | SND_SOC_CLOCK_IN); | |
55 | } | |
56 | ||
57 | return ret; | |
58 | } | |
59 | ||
60 | static struct snd_soc_ops asoc_simple_card_ops = { | |
61 | .hw_params = asoc_simple_card_hw_params, | |
62 | }; | |
63 | ||
3fe24032 DR |
64 | static struct snd_soc_jack simple_card_hp_jack; |
65 | static struct snd_soc_jack_pin simple_card_hp_jack_pins[] = { | |
66 | { | |
67 | .pin = "Headphones", | |
68 | .mask = SND_JACK_HEADPHONE, | |
69 | }, | |
70 | }; | |
71 | static struct snd_soc_jack_gpio simple_card_hp_jack_gpio = { | |
72 | .name = "Headphone detection", | |
73 | .report = SND_JACK_HEADPHONE, | |
74 | .debounce_time = 150, | |
75 | }; | |
76 | ||
77 | static struct snd_soc_jack simple_card_mic_jack; | |
78 | static struct snd_soc_jack_pin simple_card_mic_jack_pins[] = { | |
79 | { | |
80 | .pin = "Mic Jack", | |
81 | .mask = SND_JACK_MICROPHONE, | |
82 | }, | |
83 | }; | |
84 | static struct snd_soc_jack_gpio simple_card_mic_jack_gpio = { | |
85 | .name = "Mic detection", | |
86 | .report = SND_JACK_MICROPHONE, | |
87 | .debounce_time = 150, | |
88 | }; | |
89 | ||
a4a2992c | 90 | static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai, |
30d0341e | 91 | struct asoc_simple_dai *set) |
a4a2992c | 92 | { |
4763ebe2 | 93 | int ret; |
a4a2992c | 94 | |
30d0341e XL |
95 | if (set->fmt) { |
96 | ret = snd_soc_dai_set_fmt(dai, set->fmt); | |
4763ebe2 XL |
97 | if (ret && ret != -ENOTSUPP) { |
98 | dev_err(dai->dev, "simple-card: set_fmt error\n"); | |
99 | goto err; | |
100 | } | |
e244bb9b KM |
101 | } |
102 | ||
4763ebe2 | 103 | if (set->sysclk) { |
a4a2992c | 104 | ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0); |
4763ebe2 XL |
105 | if (ret && ret != -ENOTSUPP) { |
106 | dev_err(dai->dev, "simple-card: set_sysclk error\n"); | |
107 | goto err; | |
108 | } | |
109 | } | |
110 | ||
6ff62eed XL |
111 | if (set->slots) { |
112 | ret = snd_soc_dai_set_tdm_slot(dai, 0, 0, | |
113 | set->slots, | |
114 | set->slot_width); | |
115 | if (ret && ret != -ENOTSUPP) { | |
116 | dev_err(dai->dev, "simple-card: set_tdm_slot error\n"); | |
117 | goto err; | |
118 | } | |
119 | } | |
120 | ||
4763ebe2 | 121 | ret = 0; |
a4a2992c | 122 | |
4763ebe2 | 123 | err: |
a4a2992c KM |
124 | return ret; |
125 | } | |
126 | ||
f2390880 KM |
127 | static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) |
128 | { | |
781cbebe | 129 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); |
f2390880 KM |
130 | struct snd_soc_dai *codec = rtd->codec_dai; |
131 | struct snd_soc_dai *cpu = rtd->cpu_dai; | |
6a91a17b JFM |
132 | struct simple_dai_props *dai_props; |
133 | int num, ret; | |
f2390880 | 134 | |
6a91a17b JFM |
135 | num = rtd - rtd->card->rtd; |
136 | dai_props = &priv->dai_props[num]; | |
137 | ret = __asoc_simple_card_dai_init(codec, &dai_props->codec_dai); | |
a4a2992c KM |
138 | if (ret < 0) |
139 | return ret; | |
f2390880 | 140 | |
6a91a17b | 141 | ret = __asoc_simple_card_dai_init(cpu, &dai_props->cpu_dai); |
a4a2992c KM |
142 | if (ret < 0) |
143 | return ret; | |
f2390880 | 144 | |
3fe24032 DR |
145 | if (gpio_is_valid(priv->gpio_hp_det)) { |
146 | snd_soc_jack_new(codec->codec, "Headphones", SND_JACK_HEADPHONE, | |
147 | &simple_card_hp_jack); | |
148 | snd_soc_jack_add_pins(&simple_card_hp_jack, | |
149 | ARRAY_SIZE(simple_card_hp_jack_pins), | |
150 | simple_card_hp_jack_pins); | |
151 | ||
152 | simple_card_hp_jack_gpio.gpio = priv->gpio_hp_det; | |
4476159f | 153 | simple_card_hp_jack_gpio.invert = priv->gpio_hp_det_invert; |
3fe24032 DR |
154 | snd_soc_jack_add_gpios(&simple_card_hp_jack, 1, |
155 | &simple_card_hp_jack_gpio); | |
156 | } | |
157 | ||
158 | if (gpio_is_valid(priv->gpio_mic_det)) { | |
159 | snd_soc_jack_new(codec->codec, "Mic Jack", SND_JACK_MICROPHONE, | |
160 | &simple_card_mic_jack); | |
161 | snd_soc_jack_add_pins(&simple_card_mic_jack, | |
162 | ARRAY_SIZE(simple_card_mic_jack_pins), | |
163 | simple_card_mic_jack_pins); | |
164 | simple_card_mic_jack_gpio.gpio = priv->gpio_mic_det; | |
4476159f | 165 | simple_card_mic_jack_gpio.invert = priv->gpio_mic_det_invert; |
3fe24032 DR |
166 | snd_soc_jack_add_gpios(&simple_card_mic_jack, 1, |
167 | &simple_card_mic_jack_gpio); | |
168 | } | |
f2390880 KM |
169 | return 0; |
170 | } | |
171 | ||
fa558c28 KM |
172 | static int |
173 | asoc_simple_card_sub_parse_of(struct device_node *np, | |
174 | struct asoc_simple_dai *dai, | |
8ea21348 | 175 | struct device_node **p_node, |
7c7b9cf5 KM |
176 | const char **name, |
177 | int *args_count) | |
fa558c28 | 178 | { |
7c7b9cf5 | 179 | struct of_phandle_args args; |
fa558c28 | 180 | struct clk *clk; |
c7099eb1 | 181 | u32 val; |
fa558c28 KM |
182 | int ret; |
183 | ||
184 | /* | |
0dd4fc3c | 185 | * Get node via "sound-dai = <&phandle port>" |
fa558c28 KM |
186 | * it will be used as xxx_of_node on soc_bind_dai_link() |
187 | */ | |
7c7b9cf5 KM |
188 | ret = of_parse_phandle_with_args(np, "sound-dai", |
189 | "#sound-dai-cells", 0, &args); | |
190 | if (ret) | |
191 | return ret; | |
192 | ||
193 | *p_node = args.np; | |
194 | ||
195 | if (args_count) | |
196 | *args_count = args.args_count; | |
fa558c28 | 197 | |
0dd4fc3c | 198 | /* Get dai->name */ |
52008472 | 199 | ret = snd_soc_of_get_dai_name(np, name); |
fa558c28 | 200 | if (ret < 0) |
e512e001 | 201 | return ret; |
fa558c28 | 202 | |
0dd4fc3c | 203 | /* Parse TDM slot */ |
6ff62eed XL |
204 | ret = snd_soc_of_parse_tdm_slot(np, &dai->slots, &dai->slot_width); |
205 | if (ret) | |
e512e001 | 206 | return ret; |
6ff62eed | 207 | |
fa558c28 | 208 | /* |
0dd4fc3c XL |
209 | * Parse dai->sysclk come from "clocks = <&xxx>" |
210 | * (if system has common clock) | |
fa558c28 | 211 | * or "system-clock-frequency = <xxx>" |
71467e46 | 212 | * or device's module clock. |
fa558c28 | 213 | */ |
71467e46 XL |
214 | if (of_property_read_bool(np, "clocks")) { |
215 | clk = of_clk_get(np, 0); | |
216 | if (IS_ERR(clk)) { | |
217 | ret = PTR_ERR(clk); | |
e512e001 | 218 | return ret; |
71467e46 XL |
219 | } |
220 | ||
221 | dai->sysclk = clk_get_rate(clk); | |
c7099eb1 JS |
222 | } else if (!of_property_read_u32(np, "system-clock-frequency", &val)) { |
223 | dai->sysclk = val; | |
71467e46 | 224 | } else { |
88a60e55 | 225 | clk = of_clk_get(args.np, 0); |
e2a19ac6 XL |
226 | if (!IS_ERR(clk)) |
227 | dai->sysclk = clk_get_rate(clk); | |
71467e46 | 228 | } |
fa558c28 | 229 | |
e512e001 | 230 | return 0; |
fa558c28 KM |
231 | } |
232 | ||
1b5721b2 KM |
233 | static int asoc_simple_card_parse_daifmt(struct device_node *node, |
234 | struct simple_card_data *priv, | |
1b5721b2 KM |
235 | struct device_node *codec, |
236 | char *prefix, int idx) | |
237 | { | |
238 | struct device *dev = simple_priv_to_dev(priv); | |
239 | struct device_node *bitclkmaster = NULL; | |
240 | struct device_node *framemaster = NULL; | |
241 | struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx); | |
242 | struct asoc_simple_dai *cpu_dai = &dai_props->cpu_dai; | |
243 | struct asoc_simple_dai *codec_dai = &dai_props->codec_dai; | |
244 | unsigned int daifmt; | |
245 | ||
246 | daifmt = snd_soc_of_parse_daifmt(node, prefix, | |
247 | &bitclkmaster, &framemaster); | |
248 | daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK; | |
249 | ||
250 | if (strlen(prefix) && !bitclkmaster && !framemaster) { | |
251 | /* | |
252 | * No dai-link level and master setting was not found from | |
253 | * sound node level, revert back to legacy DT parsing and | |
254 | * take the settings from codec node. | |
255 | */ | |
256 | dev_dbg(dev, "Revert to legacy daifmt parsing\n"); | |
257 | ||
258 | cpu_dai->fmt = codec_dai->fmt = | |
259 | snd_soc_of_parse_daifmt(codec, NULL, NULL, NULL) | | |
260 | (daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK); | |
261 | } else { | |
262 | if (codec == bitclkmaster) | |
263 | daifmt |= (codec == framemaster) ? | |
264 | SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS; | |
265 | else | |
266 | daifmt |= (codec == framemaster) ? | |
267 | SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS; | |
268 | ||
269 | cpu_dai->fmt = daifmt; | |
270 | codec_dai->fmt = daifmt; | |
271 | } | |
272 | ||
273 | of_node_put(bitclkmaster); | |
274 | of_node_put(framemaster); | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
2d82eeb0 | 279 | static int asoc_simple_card_dai_link_of(struct device_node *node, |
f531913f | 280 | struct simple_card_data *priv, |
9810f537 | 281 | int idx, |
2d82eeb0 | 282 | bool is_top_level_node) |
6a91a17b | 283 | { |
f531913f | 284 | struct device *dev = simple_priv_to_dev(priv); |
9810f537 KM |
285 | struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx); |
286 | struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx); | |
1b5721b2 KM |
287 | struct device_node *cpu = NULL; |
288 | struct device_node *codec = NULL; | |
b3ca11ff JS |
289 | char *name; |
290 | char prop[128]; | |
291 | char *prefix = ""; | |
7c7b9cf5 | 292 | int ret, cpu_args; |
6a91a17b | 293 | |
2080437d | 294 | /* For single DAI link & old style of DT node */ |
64872215 JS |
295 | if (is_top_level_node) |
296 | prefix = "simple-audio-card,"; | |
b3ca11ff | 297 | |
b3ca11ff | 298 | snprintf(prop, sizeof(prop), "%scpu", prefix); |
1b5721b2 KM |
299 | cpu = of_get_child_by_name(node, prop); |
300 | ||
301 | snprintf(prop, sizeof(prop), "%scodec", prefix); | |
302 | codec = of_get_child_by_name(node, prop); | |
303 | ||
304 | if (!cpu || !codec) { | |
b3ca11ff | 305 | ret = -EINVAL; |
966b8063 | 306 | dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop); |
b3ca11ff | 307 | goto dai_link_of_err; |
6a91a17b | 308 | } |
b3ca11ff | 309 | |
1b5721b2 | 310 | ret = asoc_simple_card_parse_daifmt(node, priv, |
7195d920 | 311 | codec, prefix, idx); |
1b5721b2 KM |
312 | if (ret < 0) |
313 | goto dai_link_of_err; | |
314 | ||
315 | ret = asoc_simple_card_sub_parse_of(cpu, &dai_props->cpu_dai, | |
b3ca11ff | 316 | &dai_link->cpu_of_node, |
7c7b9cf5 KM |
317 | &dai_link->cpu_dai_name, |
318 | &cpu_args); | |
6a91a17b | 319 | if (ret < 0) |
b3ca11ff JS |
320 | goto dai_link_of_err; |
321 | ||
1b5721b2 | 322 | ret = asoc_simple_card_sub_parse_of(codec, &dai_props->codec_dai, |
b3ca11ff | 323 | &dai_link->codec_of_node, |
7c7b9cf5 | 324 | &dai_link->codec_dai_name, NULL); |
b3ca11ff JS |
325 | if (ret < 0) |
326 | goto dai_link_of_err; | |
327 | ||
b3ca11ff | 328 | if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) { |
781cbebe NC |
329 | ret = -EINVAL; |
330 | goto dai_link_of_err; | |
b3ca11ff JS |
331 | } |
332 | ||
0dd4fc3c | 333 | /* Simple Card assumes platform == cpu */ |
b3ca11ff JS |
334 | dai_link->platform_of_node = dai_link->cpu_of_node; |
335 | ||
0dd4fc3c | 336 | /* DAI link name is created from CPU/CODEC dai name */ |
b3ca11ff JS |
337 | name = devm_kzalloc(dev, |
338 | strlen(dai_link->cpu_dai_name) + | |
339 | strlen(dai_link->codec_dai_name) + 2, | |
340 | GFP_KERNEL); | |
341 | sprintf(name, "%s-%s", dai_link->cpu_dai_name, | |
342 | dai_link->codec_dai_name); | |
343 | dai_link->name = dai_link->stream_name = name; | |
2942a0e2 | 344 | dai_link->ops = &asoc_simple_card_ops; |
a5960bd5 | 345 | dai_link->init = asoc_simple_card_dai_init; |
b3ca11ff JS |
346 | |
347 | dev_dbg(dev, "\tname : %s\n", dai_link->stream_name); | |
348 | dev_dbg(dev, "\tcpu : %s / %04x / %d\n", | |
349 | dai_link->cpu_dai_name, | |
350 | dai_props->cpu_dai.fmt, | |
351 | dai_props->cpu_dai.sysclk); | |
352 | dev_dbg(dev, "\tcodec : %s / %04x / %d\n", | |
353 | dai_link->codec_dai_name, | |
354 | dai_props->codec_dai.fmt, | |
355 | dai_props->codec_dai.sysclk); | |
356 | ||
179949bc | 357 | /* |
0dd4fc3c XL |
358 | * In soc_bind_dai_link() will check cpu name after |
359 | * of_node matching if dai_link has cpu_dai_name. | |
360 | * but, it will never match if name was created by | |
361 | * fmt_single_name() remove cpu_dai_name if cpu_args | |
362 | * was 0. See: | |
179949bc KM |
363 | * fmt_single_name() |
364 | * fmt_multiple_name() | |
365 | */ | |
7c7b9cf5 KM |
366 | if (!cpu_args) |
367 | dai_link->cpu_dai_name = NULL; | |
179949bc | 368 | |
b3ca11ff | 369 | dai_link_of_err: |
1b5721b2 KM |
370 | of_node_put(cpu); |
371 | of_node_put(codec); | |
372 | ||
6a91a17b JFM |
373 | return ret; |
374 | } | |
375 | ||
fa558c28 | 376 | static int asoc_simple_card_parse_of(struct device_node *node, |
f531913f | 377 | struct simple_card_data *priv) |
fa558c28 | 378 | { |
f531913f | 379 | struct device *dev = simple_priv_to_dev(priv); |
4476159f | 380 | enum of_gpio_flags flags; |
c7099eb1 | 381 | u32 val; |
d4c22094 | 382 | int ret; |
fa558c28 | 383 | |
2080437d XL |
384 | if (!node) |
385 | return -EINVAL; | |
386 | ||
0dd4fc3c | 387 | /* Parse the card name from DT */ |
2772555b XL |
388 | snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name"); |
389 | ||
0dd4fc3c | 390 | /* The off-codec widgets */ |
9d681f5b XL |
391 | if (of_property_read_bool(node, "simple-audio-card,widgets")) { |
392 | ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card, | |
393 | "simple-audio-card,widgets"); | |
394 | if (ret) | |
395 | return ret; | |
396 | } | |
397 | ||
d4c22094 | 398 | /* DAPM routes */ |
8c0b8230 | 399 | if (of_property_read_bool(node, "simple-audio-card,routing")) { |
b367a325 | 400 | ret = snd_soc_of_parse_audio_routing(&priv->snd_card, |
8c0b8230 | 401 | "simple-audio-card,routing"); |
f87a3e82 XL |
402 | if (ret) |
403 | return ret; | |
404 | } | |
d4c22094 | 405 | |
2942a0e2 | 406 | /* Factor to mclk, used in hw_params() */ |
c7099eb1 JS |
407 | ret = of_property_read_u32(node, "simple-audio-card,mclk-fs", &val); |
408 | if (ret == 0) | |
409 | priv->mclk_fs = val; | |
2942a0e2 | 410 | |
b3ca11ff JS |
411 | dev_dbg(dev, "New simple-card: %s\n", priv->snd_card.name ? |
412 | priv->snd_card.name : ""); | |
413 | ||
2080437d XL |
414 | /* Single/Muti DAI link(s) & New style of DT node */ |
415 | if (of_get_child_by_name(node, "simple-audio-card,dai-link")) { | |
b3ca11ff | 416 | struct device_node *np = NULL; |
a44a750e KM |
417 | int i = 0; |
418 | ||
419 | for_each_child_of_node(node, np) { | |
b3ca11ff | 420 | dev_dbg(dev, "\tlink %d:\n", i); |
f531913f | 421 | ret = asoc_simple_card_dai_link_of(np, priv, |
9810f537 | 422 | i, false); |
b3ca11ff JS |
423 | if (ret < 0) { |
424 | of_node_put(np); | |
425 | return ret; | |
426 | } | |
a44a750e | 427 | i++; |
6a91a17b | 428 | } |
b3ca11ff | 429 | } else { |
2080437d | 430 | /* For single DAI link & old style of DT node */ |
9810f537 | 431 | ret = asoc_simple_card_dai_link_of(node, priv, 0, true); |
6a91a17b | 432 | if (ret < 0) |
b3ca11ff | 433 | return ret; |
6a91a17b | 434 | } |
dd41e0c4 | 435 | |
4476159f J |
436 | priv->gpio_hp_det = of_get_named_gpio_flags(node, |
437 | "simple-audio-card,hp-det-gpio", 0, &flags); | |
438 | priv->gpio_hp_det_invert = !!(flags & OF_GPIO_ACTIVE_LOW); | |
3fe24032 DR |
439 | if (priv->gpio_hp_det == -EPROBE_DEFER) |
440 | return -EPROBE_DEFER; | |
441 | ||
4476159f J |
442 | priv->gpio_mic_det = of_get_named_gpio_flags(node, |
443 | "simple-audio-card,mic-det-gpio", 0, &flags); | |
444 | priv->gpio_mic_det_invert = !!(flags & OF_GPIO_ACTIVE_LOW); | |
3fe24032 DR |
445 | if (priv->gpio_mic_det == -EPROBE_DEFER) |
446 | return -EPROBE_DEFER; | |
447 | ||
2772555b | 448 | if (!priv->snd_card.name) |
b3ca11ff | 449 | priv->snd_card.name = priv->snd_card.dai_link->name; |
f687d900 | 450 | |
fa558c28 KM |
451 | return 0; |
452 | } | |
453 | ||
0dd4fc3c | 454 | /* Decrease the reference count of the device nodes */ |
e512e001 JFM |
455 | static int asoc_simple_card_unref(struct platform_device *pdev) |
456 | { | |
457 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
458 | struct snd_soc_dai_link *dai_link; | |
e512e001 JFM |
459 | int num_links; |
460 | ||
461 | for (num_links = 0, dai_link = card->dai_link; | |
462 | num_links < card->num_links; | |
463 | num_links++, dai_link++) { | |
0099c762 JFM |
464 | of_node_put(dai_link->cpu_of_node); |
465 | of_node_put(dai_link->codec_of_node); | |
e512e001 JFM |
466 | } |
467 | return 0; | |
468 | } | |
469 | ||
f2390880 KM |
470 | static int asoc_simple_card_probe(struct platform_device *pdev) |
471 | { | |
45fce594 | 472 | struct simple_card_data *priv; |
5ca8ba41 | 473 | struct snd_soc_dai_link *dai_link; |
fa558c28 | 474 | struct device_node *np = pdev->dev.of_node; |
f89983ef | 475 | struct device *dev = &pdev->dev; |
2080437d | 476 | int num_links, ret; |
6a91a17b | 477 | |
0dd4fc3c | 478 | /* Get the number of DAI links */ |
2080437d | 479 | if (np && of_get_child_by_name(np, "simple-audio-card,dai-link")) |
6a91a17b | 480 | num_links = of_get_child_count(np); |
2080437d | 481 | else |
6a91a17b | 482 | num_links = 1; |
f2390880 | 483 | |
0dd4fc3c | 484 | /* Allocate the private data and the DAI link array */ |
cf7dc23c | 485 | priv = devm_kzalloc(dev, |
6a91a17b | 486 | sizeof(*priv) + sizeof(*dai_link) * num_links, |
cf7dc23c | 487 | GFP_KERNEL); |
ca65b492 | 488 | if (!priv) |
ca919fe4 XL |
489 | return -ENOMEM; |
490 | ||
0dd4fc3c | 491 | /* Init snd_soc_card */ |
ca65b492 JFM |
492 | priv->snd_card.owner = THIS_MODULE; |
493 | priv->snd_card.dev = dev; | |
cf7dc23c | 494 | dai_link = priv->dai_link; |
ca65b492 | 495 | priv->snd_card.dai_link = dai_link; |
6a91a17b | 496 | priv->snd_card.num_links = num_links; |
201a0eac | 497 | |
2dbab978 GU |
498 | priv->gpio_hp_det = -ENOENT; |
499 | priv->gpio_mic_det = -ENOENT; | |
500 | ||
0dd4fc3c | 501 | /* Get room for the other properties */ |
cf7dc23c | 502 | priv->dai_props = devm_kzalloc(dev, |
6a91a17b | 503 | sizeof(*priv->dai_props) * num_links, |
cf7dc23c JFM |
504 | GFP_KERNEL); |
505 | if (!priv->dai_props) | |
506 | return -ENOMEM; | |
507 | ||
fa558c28 | 508 | if (np && of_device_is_available(np)) { |
ca919fe4 | 509 | |
f531913f | 510 | ret = asoc_simple_card_parse_of(np, priv); |
ca919fe4 XL |
511 | if (ret < 0) { |
512 | if (ret != -EPROBE_DEFER) | |
513 | dev_err(dev, "parse error %d\n", ret); | |
e512e001 | 514 | goto err; |
fa558c28 | 515 | } |
6a91a17b | 516 | |
fa558c28 | 517 | } else { |
ca65b492 JFM |
518 | struct asoc_simple_card_info *cinfo; |
519 | ||
520 | cinfo = dev->platform_data; | |
521 | if (!cinfo) { | |
34787d0a XL |
522 | dev_err(dev, "no info for asoc-simple-card\n"); |
523 | return -EINVAL; | |
524 | } | |
fa558c28 | 525 | |
781cbebe NC |
526 | if (!cinfo->name || |
527 | !cinfo->codec_dai.name || | |
528 | !cinfo->codec || | |
529 | !cinfo->platform || | |
7722f830 JFM |
530 | !cinfo->cpu_dai.name) { |
531 | dev_err(dev, "insufficient asoc_simple_card_info settings\n"); | |
532 | return -EINVAL; | |
533 | } | |
2bee9914 | 534 | |
12ffa6fc | 535 | priv->snd_card.name = (cinfo->card) ? cinfo->card : cinfo->name; |
5ca8ba41 JFM |
536 | dai_link->name = cinfo->name; |
537 | dai_link->stream_name = cinfo->name; | |
538 | dai_link->platform_name = cinfo->platform; | |
539 | dai_link->codec_name = cinfo->codec; | |
52008472 JFM |
540 | dai_link->cpu_dai_name = cinfo->cpu_dai.name; |
541 | dai_link->codec_dai_name = cinfo->codec_dai.name; | |
a5960bd5 | 542 | dai_link->init = asoc_simple_card_dai_init; |
cf7dc23c JFM |
543 | memcpy(&priv->dai_props->cpu_dai, &cinfo->cpu_dai, |
544 | sizeof(priv->dai_props->cpu_dai)); | |
545 | memcpy(&priv->dai_props->codec_dai, &cinfo->codec_dai, | |
546 | sizeof(priv->dai_props->codec_dai)); | |
81985bd6 | 547 | |
cf7dc23c JFM |
548 | priv->dai_props->cpu_dai.fmt |= cinfo->daifmt; |
549 | priv->dai_props->codec_dai.fmt |= cinfo->daifmt; | |
f2390880 KM |
550 | } |
551 | ||
ca65b492 | 552 | snd_soc_card_set_drvdata(&priv->snd_card, priv); |
f2390880 | 553 | |
e512e001 | 554 | ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card); |
e3c4a28b XL |
555 | if (ret >= 0) |
556 | return ret; | |
e512e001 JFM |
557 | |
558 | err: | |
559 | asoc_simple_card_unref(pdev); | |
560 | return ret; | |
f2390880 KM |
561 | } |
562 | ||
e3c4a28b XL |
563 | static int asoc_simple_card_remove(struct platform_device *pdev) |
564 | { | |
3fe24032 DR |
565 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
566 | struct simple_card_data *priv = snd_soc_card_get_drvdata(card); | |
567 | ||
568 | if (gpio_is_valid(priv->gpio_hp_det)) | |
569 | snd_soc_jack_free_gpios(&simple_card_hp_jack, 1, | |
570 | &simple_card_hp_jack_gpio); | |
571 | if (gpio_is_valid(priv->gpio_mic_det)) | |
572 | snd_soc_jack_free_gpios(&simple_card_mic_jack, 1, | |
573 | &simple_card_mic_jack_gpio); | |
574 | ||
e3c4a28b XL |
575 | return asoc_simple_card_unref(pdev); |
576 | } | |
577 | ||
fa558c28 KM |
578 | static const struct of_device_id asoc_simple_of_match[] = { |
579 | { .compatible = "simple-audio-card", }, | |
580 | {}, | |
581 | }; | |
582 | MODULE_DEVICE_TABLE(of, asoc_simple_of_match); | |
583 | ||
f2390880 KM |
584 | static struct platform_driver asoc_simple_card = { |
585 | .driver = { | |
781cbebe | 586 | .name = "asoc-simple-card", |
fa558c28 | 587 | .of_match_table = asoc_simple_of_match, |
f2390880 | 588 | }, |
781cbebe | 589 | .probe = asoc_simple_card_probe, |
e3c4a28b | 590 | .remove = asoc_simple_card_remove, |
f2390880 KM |
591 | }; |
592 | ||
593 | module_platform_driver(asoc_simple_card); | |
594 | ||
c445be35 | 595 | MODULE_ALIAS("platform:asoc-simple-card"); |
f2390880 KM |
596 | MODULE_LICENSE("GPL"); |
597 | MODULE_DESCRIPTION("ASoC Simple Sound Card"); | |
598 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); |