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 | |
f9911803 JS |
42 | static int asoc_simple_card_startup(struct snd_pcm_substream *substream) |
43 | { | |
44 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
45 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); | |
46 | struct simple_dai_props *dai_props = | |
47 | &priv->dai_props[rtd - rtd->card->rtd]; | |
48 | int ret; | |
49 | ||
50 | ret = clk_prepare_enable(dai_props->cpu_dai.clk); | |
51 | if (ret) | |
52 | return ret; | |
53 | ||
54 | ret = clk_prepare_enable(dai_props->codec_dai.clk); | |
55 | if (ret) | |
56 | clk_disable_unprepare(dai_props->cpu_dai.clk); | |
57 | ||
58 | return ret; | |
59 | } | |
60 | ||
61 | static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream) | |
62 | { | |
63 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
64 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); | |
65 | struct simple_dai_props *dai_props = | |
66 | &priv->dai_props[rtd - rtd->card->rtd]; | |
67 | ||
68 | clk_disable_unprepare(dai_props->cpu_dai.clk); | |
69 | ||
70 | clk_disable_unprepare(dai_props->codec_dai.clk); | |
71 | } | |
72 | ||
2942a0e2 AL |
73 | static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream, |
74 | struct snd_pcm_hw_params *params) | |
75 | { | |
76 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
77 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
78 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); | |
79 | unsigned int mclk; | |
80 | int ret = 0; | |
81 | ||
82 | if (priv->mclk_fs) { | |
83 | mclk = params_rate(params) * priv->mclk_fs; | |
84 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, | |
85 | SND_SOC_CLOCK_IN); | |
86 | } | |
87 | ||
88 | return ret; | |
89 | } | |
90 | ||
91 | static struct snd_soc_ops asoc_simple_card_ops = { | |
f9911803 JS |
92 | .startup = asoc_simple_card_startup, |
93 | .shutdown = asoc_simple_card_shutdown, | |
2942a0e2 AL |
94 | .hw_params = asoc_simple_card_hw_params, |
95 | }; | |
96 | ||
3fe24032 DR |
97 | static struct snd_soc_jack simple_card_hp_jack; |
98 | static struct snd_soc_jack_pin simple_card_hp_jack_pins[] = { | |
99 | { | |
100 | .pin = "Headphones", | |
101 | .mask = SND_JACK_HEADPHONE, | |
102 | }, | |
103 | }; | |
104 | static struct snd_soc_jack_gpio simple_card_hp_jack_gpio = { | |
105 | .name = "Headphone detection", | |
106 | .report = SND_JACK_HEADPHONE, | |
107 | .debounce_time = 150, | |
108 | }; | |
109 | ||
110 | static struct snd_soc_jack simple_card_mic_jack; | |
111 | static struct snd_soc_jack_pin simple_card_mic_jack_pins[] = { | |
112 | { | |
113 | .pin = "Mic Jack", | |
114 | .mask = SND_JACK_MICROPHONE, | |
115 | }, | |
116 | }; | |
117 | static struct snd_soc_jack_gpio simple_card_mic_jack_gpio = { | |
118 | .name = "Mic detection", | |
119 | .report = SND_JACK_MICROPHONE, | |
120 | .debounce_time = 150, | |
121 | }; | |
122 | ||
a4a2992c | 123 | static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai, |
30d0341e | 124 | struct asoc_simple_dai *set) |
a4a2992c | 125 | { |
4763ebe2 | 126 | int ret; |
a4a2992c | 127 | |
4763ebe2 | 128 | if (set->sysclk) { |
a4a2992c | 129 | ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0); |
4763ebe2 XL |
130 | if (ret && ret != -ENOTSUPP) { |
131 | dev_err(dai->dev, "simple-card: set_sysclk error\n"); | |
132 | goto err; | |
133 | } | |
134 | } | |
135 | ||
6ff62eed XL |
136 | if (set->slots) { |
137 | ret = snd_soc_dai_set_tdm_slot(dai, 0, 0, | |
138 | set->slots, | |
139 | set->slot_width); | |
140 | if (ret && ret != -ENOTSUPP) { | |
141 | dev_err(dai->dev, "simple-card: set_tdm_slot error\n"); | |
142 | goto err; | |
143 | } | |
144 | } | |
145 | ||
4763ebe2 | 146 | ret = 0; |
a4a2992c | 147 | |
4763ebe2 | 148 | err: |
a4a2992c KM |
149 | return ret; |
150 | } | |
151 | ||
f2390880 KM |
152 | static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) |
153 | { | |
781cbebe | 154 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); |
f2390880 KM |
155 | struct snd_soc_dai *codec = rtd->codec_dai; |
156 | struct snd_soc_dai *cpu = rtd->cpu_dai; | |
6a91a17b JFM |
157 | struct simple_dai_props *dai_props; |
158 | int num, ret; | |
f2390880 | 159 | |
6a91a17b JFM |
160 | num = rtd - rtd->card->rtd; |
161 | dai_props = &priv->dai_props[num]; | |
162 | ret = __asoc_simple_card_dai_init(codec, &dai_props->codec_dai); | |
a4a2992c KM |
163 | if (ret < 0) |
164 | return ret; | |
f2390880 | 165 | |
6a91a17b | 166 | ret = __asoc_simple_card_dai_init(cpu, &dai_props->cpu_dai); |
a4a2992c KM |
167 | if (ret < 0) |
168 | return ret; | |
f2390880 | 169 | |
3fe24032 | 170 | if (gpio_is_valid(priv->gpio_hp_det)) { |
386669fc LPC |
171 | snd_soc_card_jack_new(rtd->card, "Headphones", |
172 | SND_JACK_HEADPHONE, | |
173 | &simple_card_hp_jack, | |
174 | simple_card_hp_jack_pins, | |
175 | ARRAY_SIZE(simple_card_hp_jack_pins)); | |
3fe24032 DR |
176 | |
177 | simple_card_hp_jack_gpio.gpio = priv->gpio_hp_det; | |
4476159f | 178 | simple_card_hp_jack_gpio.invert = priv->gpio_hp_det_invert; |
3fe24032 DR |
179 | snd_soc_jack_add_gpios(&simple_card_hp_jack, 1, |
180 | &simple_card_hp_jack_gpio); | |
181 | } | |
182 | ||
183 | if (gpio_is_valid(priv->gpio_mic_det)) { | |
386669fc LPC |
184 | snd_soc_card_jack_new(rtd->card, "Mic Jack", |
185 | SND_JACK_MICROPHONE, | |
186 | &simple_card_mic_jack, | |
187 | simple_card_mic_jack_pins, | |
188 | ARRAY_SIZE(simple_card_mic_jack_pins)); | |
3fe24032 | 189 | simple_card_mic_jack_gpio.gpio = priv->gpio_mic_det; |
4476159f | 190 | simple_card_mic_jack_gpio.invert = priv->gpio_mic_det_invert; |
3fe24032 DR |
191 | snd_soc_jack_add_gpios(&simple_card_mic_jack, 1, |
192 | &simple_card_mic_jack_gpio); | |
193 | } | |
f2390880 KM |
194 | return 0; |
195 | } | |
196 | ||
fa558c28 KM |
197 | static int |
198 | asoc_simple_card_sub_parse_of(struct device_node *np, | |
199 | struct asoc_simple_dai *dai, | |
8ea21348 | 200 | struct device_node **p_node, |
7c7b9cf5 KM |
201 | const char **name, |
202 | int *args_count) | |
fa558c28 | 203 | { |
7c7b9cf5 | 204 | struct of_phandle_args args; |
fa558c28 | 205 | struct clk *clk; |
c7099eb1 | 206 | u32 val; |
fa558c28 KM |
207 | int ret; |
208 | ||
209 | /* | |
0dd4fc3c | 210 | * Get node via "sound-dai = <&phandle port>" |
fa558c28 KM |
211 | * it will be used as xxx_of_node on soc_bind_dai_link() |
212 | */ | |
7c7b9cf5 KM |
213 | ret = of_parse_phandle_with_args(np, "sound-dai", |
214 | "#sound-dai-cells", 0, &args); | |
215 | if (ret) | |
216 | return ret; | |
217 | ||
218 | *p_node = args.np; | |
219 | ||
220 | if (args_count) | |
221 | *args_count = args.args_count; | |
fa558c28 | 222 | |
0dd4fc3c | 223 | /* Get dai->name */ |
52008472 | 224 | ret = snd_soc_of_get_dai_name(np, name); |
fa558c28 | 225 | if (ret < 0) |
e512e001 | 226 | return ret; |
fa558c28 | 227 | |
0dd4fc3c | 228 | /* Parse TDM slot */ |
6ff62eed XL |
229 | ret = snd_soc_of_parse_tdm_slot(np, &dai->slots, &dai->slot_width); |
230 | if (ret) | |
e512e001 | 231 | return ret; |
6ff62eed | 232 | |
fa558c28 | 233 | /* |
0dd4fc3c XL |
234 | * Parse dai->sysclk come from "clocks = <&xxx>" |
235 | * (if system has common clock) | |
fa558c28 | 236 | * or "system-clock-frequency = <xxx>" |
71467e46 | 237 | * or device's module clock. |
fa558c28 | 238 | */ |
71467e46 XL |
239 | if (of_property_read_bool(np, "clocks")) { |
240 | clk = of_clk_get(np, 0); | |
241 | if (IS_ERR(clk)) { | |
242 | ret = PTR_ERR(clk); | |
e512e001 | 243 | return ret; |
71467e46 XL |
244 | } |
245 | ||
246 | dai->sysclk = clk_get_rate(clk); | |
f9911803 | 247 | dai->clk = clk; |
c7099eb1 JS |
248 | } else if (!of_property_read_u32(np, "system-clock-frequency", &val)) { |
249 | dai->sysclk = val; | |
71467e46 | 250 | } else { |
88a60e55 | 251 | clk = of_clk_get(args.np, 0); |
e2a19ac6 XL |
252 | if (!IS_ERR(clk)) |
253 | dai->sysclk = clk_get_rate(clk); | |
71467e46 | 254 | } |
fa558c28 | 255 | |
e512e001 | 256 | return 0; |
fa558c28 KM |
257 | } |
258 | ||
1b5721b2 KM |
259 | static int asoc_simple_card_parse_daifmt(struct device_node *node, |
260 | struct simple_card_data *priv, | |
1b5721b2 KM |
261 | struct device_node *codec, |
262 | char *prefix, int idx) | |
263 | { | |
1efb53a2 | 264 | struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx); |
1b5721b2 KM |
265 | struct device *dev = simple_priv_to_dev(priv); |
266 | struct device_node *bitclkmaster = NULL; | |
267 | struct device_node *framemaster = NULL; | |
1b5721b2 KM |
268 | unsigned int daifmt; |
269 | ||
270 | daifmt = snd_soc_of_parse_daifmt(node, prefix, | |
271 | &bitclkmaster, &framemaster); | |
272 | daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK; | |
273 | ||
274 | if (strlen(prefix) && !bitclkmaster && !framemaster) { | |
275 | /* | |
276 | * No dai-link level and master setting was not found from | |
277 | * sound node level, revert back to legacy DT parsing and | |
278 | * take the settings from codec node. | |
279 | */ | |
280 | dev_dbg(dev, "Revert to legacy daifmt parsing\n"); | |
281 | ||
1efb53a2 | 282 | daifmt = snd_soc_of_parse_daifmt(codec, NULL, NULL, NULL) | |
1b5721b2 KM |
283 | (daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK); |
284 | } else { | |
285 | if (codec == bitclkmaster) | |
286 | daifmt |= (codec == framemaster) ? | |
287 | SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS; | |
288 | else | |
289 | daifmt |= (codec == framemaster) ? | |
290 | SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS; | |
1b5721b2 KM |
291 | } |
292 | ||
1efb53a2 LPC |
293 | dai_link->dai_fmt = daifmt; |
294 | ||
1b5721b2 KM |
295 | of_node_put(bitclkmaster); |
296 | of_node_put(framemaster); | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
2d82eeb0 | 301 | static int asoc_simple_card_dai_link_of(struct device_node *node, |
f531913f | 302 | struct simple_card_data *priv, |
9810f537 | 303 | int idx, |
2d82eeb0 | 304 | bool is_top_level_node) |
6a91a17b | 305 | { |
f531913f | 306 | struct device *dev = simple_priv_to_dev(priv); |
9810f537 KM |
307 | struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx); |
308 | struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx); | |
1b5721b2 KM |
309 | struct device_node *cpu = NULL; |
310 | struct device_node *codec = NULL; | |
b3ca11ff JS |
311 | char *name; |
312 | char prop[128]; | |
313 | char *prefix = ""; | |
7c7b9cf5 | 314 | int ret, cpu_args; |
6a91a17b | 315 | |
2080437d | 316 | /* For single DAI link & old style of DT node */ |
64872215 JS |
317 | if (is_top_level_node) |
318 | prefix = "simple-audio-card,"; | |
b3ca11ff | 319 | |
b3ca11ff | 320 | snprintf(prop, sizeof(prop), "%scpu", prefix); |
1b5721b2 KM |
321 | cpu = of_get_child_by_name(node, prop); |
322 | ||
323 | snprintf(prop, sizeof(prop), "%scodec", prefix); | |
324 | codec = of_get_child_by_name(node, prop); | |
325 | ||
326 | if (!cpu || !codec) { | |
b3ca11ff | 327 | ret = -EINVAL; |
966b8063 | 328 | dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop); |
b3ca11ff | 329 | goto dai_link_of_err; |
6a91a17b | 330 | } |
b3ca11ff | 331 | |
1b5721b2 | 332 | ret = asoc_simple_card_parse_daifmt(node, priv, |
7195d920 | 333 | codec, prefix, idx); |
1b5721b2 KM |
334 | if (ret < 0) |
335 | goto dai_link_of_err; | |
336 | ||
337 | ret = asoc_simple_card_sub_parse_of(cpu, &dai_props->cpu_dai, | |
b3ca11ff | 338 | &dai_link->cpu_of_node, |
7c7b9cf5 KM |
339 | &dai_link->cpu_dai_name, |
340 | &cpu_args); | |
6a91a17b | 341 | if (ret < 0) |
b3ca11ff JS |
342 | goto dai_link_of_err; |
343 | ||
1b5721b2 | 344 | ret = asoc_simple_card_sub_parse_of(codec, &dai_props->codec_dai, |
b3ca11ff | 345 | &dai_link->codec_of_node, |
7c7b9cf5 | 346 | &dai_link->codec_dai_name, NULL); |
b3ca11ff JS |
347 | if (ret < 0) |
348 | goto dai_link_of_err; | |
349 | ||
b3ca11ff | 350 | if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) { |
781cbebe NC |
351 | ret = -EINVAL; |
352 | goto dai_link_of_err; | |
b3ca11ff JS |
353 | } |
354 | ||
0dd4fc3c | 355 | /* Simple Card assumes platform == cpu */ |
b3ca11ff JS |
356 | dai_link->platform_of_node = dai_link->cpu_of_node; |
357 | ||
0dd4fc3c | 358 | /* DAI link name is created from CPU/CODEC dai name */ |
b3ca11ff JS |
359 | name = devm_kzalloc(dev, |
360 | strlen(dai_link->cpu_dai_name) + | |
361 | strlen(dai_link->codec_dai_name) + 2, | |
362 | GFP_KERNEL); | |
31f3032c VT |
363 | if (!name) { |
364 | ret = -ENOMEM; | |
365 | goto dai_link_of_err; | |
366 | } | |
367 | ||
b3ca11ff JS |
368 | sprintf(name, "%s-%s", dai_link->cpu_dai_name, |
369 | dai_link->codec_dai_name); | |
370 | dai_link->name = dai_link->stream_name = name; | |
2942a0e2 | 371 | dai_link->ops = &asoc_simple_card_ops; |
a5960bd5 | 372 | dai_link->init = asoc_simple_card_dai_init; |
b3ca11ff JS |
373 | |
374 | dev_dbg(dev, "\tname : %s\n", dai_link->stream_name); | |
1efb53a2 LPC |
375 | dev_dbg(dev, "\tformat : %04x\n", dai_link->dai_fmt); |
376 | dev_dbg(dev, "\tcpu : %s / %d\n", | |
b3ca11ff | 377 | dai_link->cpu_dai_name, |
b3ca11ff | 378 | dai_props->cpu_dai.sysclk); |
1efb53a2 | 379 | dev_dbg(dev, "\tcodec : %s / %d\n", |
b3ca11ff | 380 | dai_link->codec_dai_name, |
b3ca11ff JS |
381 | dai_props->codec_dai.sysclk); |
382 | ||
179949bc | 383 | /* |
0dd4fc3c XL |
384 | * In soc_bind_dai_link() will check cpu name after |
385 | * of_node matching if dai_link has cpu_dai_name. | |
386 | * but, it will never match if name was created by | |
387 | * fmt_single_name() remove cpu_dai_name if cpu_args | |
388 | * was 0. See: | |
179949bc KM |
389 | * fmt_single_name() |
390 | * fmt_multiple_name() | |
391 | */ | |
7c7b9cf5 KM |
392 | if (!cpu_args) |
393 | dai_link->cpu_dai_name = NULL; | |
179949bc | 394 | |
b3ca11ff | 395 | dai_link_of_err: |
1b5721b2 KM |
396 | of_node_put(cpu); |
397 | of_node_put(codec); | |
398 | ||
6a91a17b JFM |
399 | return ret; |
400 | } | |
401 | ||
fa558c28 | 402 | static int asoc_simple_card_parse_of(struct device_node *node, |
f531913f | 403 | struct simple_card_data *priv) |
fa558c28 | 404 | { |
f531913f | 405 | struct device *dev = simple_priv_to_dev(priv); |
4476159f | 406 | enum of_gpio_flags flags; |
c7099eb1 | 407 | u32 val; |
d4c22094 | 408 | int ret; |
fa558c28 | 409 | |
2080437d XL |
410 | if (!node) |
411 | return -EINVAL; | |
412 | ||
0dd4fc3c | 413 | /* Parse the card name from DT */ |
2772555b XL |
414 | snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name"); |
415 | ||
0dd4fc3c | 416 | /* The off-codec widgets */ |
9d681f5b XL |
417 | if (of_property_read_bool(node, "simple-audio-card,widgets")) { |
418 | ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card, | |
419 | "simple-audio-card,widgets"); | |
420 | if (ret) | |
421 | return ret; | |
422 | } | |
423 | ||
d4c22094 | 424 | /* DAPM routes */ |
8c0b8230 | 425 | if (of_property_read_bool(node, "simple-audio-card,routing")) { |
b367a325 | 426 | ret = snd_soc_of_parse_audio_routing(&priv->snd_card, |
8c0b8230 | 427 | "simple-audio-card,routing"); |
f87a3e82 XL |
428 | if (ret) |
429 | return ret; | |
430 | } | |
d4c22094 | 431 | |
2942a0e2 | 432 | /* Factor to mclk, used in hw_params() */ |
c7099eb1 JS |
433 | ret = of_property_read_u32(node, "simple-audio-card,mclk-fs", &val); |
434 | if (ret == 0) | |
435 | priv->mclk_fs = val; | |
2942a0e2 | 436 | |
b3ca11ff JS |
437 | dev_dbg(dev, "New simple-card: %s\n", priv->snd_card.name ? |
438 | priv->snd_card.name : ""); | |
439 | ||
2080437d XL |
440 | /* Single/Muti DAI link(s) & New style of DT node */ |
441 | if (of_get_child_by_name(node, "simple-audio-card,dai-link")) { | |
b3ca11ff | 442 | struct device_node *np = NULL; |
a44a750e KM |
443 | int i = 0; |
444 | ||
445 | for_each_child_of_node(node, np) { | |
b3ca11ff | 446 | dev_dbg(dev, "\tlink %d:\n", i); |
f531913f | 447 | ret = asoc_simple_card_dai_link_of(np, priv, |
9810f537 | 448 | i, false); |
b3ca11ff JS |
449 | if (ret < 0) { |
450 | of_node_put(np); | |
451 | return ret; | |
452 | } | |
a44a750e | 453 | i++; |
6a91a17b | 454 | } |
b3ca11ff | 455 | } else { |
2080437d | 456 | /* For single DAI link & old style of DT node */ |
9810f537 | 457 | ret = asoc_simple_card_dai_link_of(node, priv, 0, true); |
6a91a17b | 458 | if (ret < 0) |
b3ca11ff | 459 | return ret; |
6a91a17b | 460 | } |
dd41e0c4 | 461 | |
4476159f J |
462 | priv->gpio_hp_det = of_get_named_gpio_flags(node, |
463 | "simple-audio-card,hp-det-gpio", 0, &flags); | |
464 | priv->gpio_hp_det_invert = !!(flags & OF_GPIO_ACTIVE_LOW); | |
3fe24032 DR |
465 | if (priv->gpio_hp_det == -EPROBE_DEFER) |
466 | return -EPROBE_DEFER; | |
467 | ||
4476159f J |
468 | priv->gpio_mic_det = of_get_named_gpio_flags(node, |
469 | "simple-audio-card,mic-det-gpio", 0, &flags); | |
470 | priv->gpio_mic_det_invert = !!(flags & OF_GPIO_ACTIVE_LOW); | |
3fe24032 DR |
471 | if (priv->gpio_mic_det == -EPROBE_DEFER) |
472 | return -EPROBE_DEFER; | |
473 | ||
2772555b | 474 | if (!priv->snd_card.name) |
b3ca11ff | 475 | priv->snd_card.name = priv->snd_card.dai_link->name; |
f687d900 | 476 | |
fa558c28 KM |
477 | return 0; |
478 | } | |
479 | ||
0dd4fc3c | 480 | /* Decrease the reference count of the device nodes */ |
7ddfdb5c | 481 | static int asoc_simple_card_unref(struct snd_soc_card *card) |
e512e001 | 482 | { |
e512e001 | 483 | struct snd_soc_dai_link *dai_link; |
e512e001 JFM |
484 | int num_links; |
485 | ||
486 | for (num_links = 0, dai_link = card->dai_link; | |
487 | num_links < card->num_links; | |
488 | num_links++, dai_link++) { | |
0099c762 JFM |
489 | of_node_put(dai_link->cpu_of_node); |
490 | of_node_put(dai_link->codec_of_node); | |
e512e001 JFM |
491 | } |
492 | return 0; | |
493 | } | |
494 | ||
f2390880 KM |
495 | static int asoc_simple_card_probe(struct platform_device *pdev) |
496 | { | |
45fce594 | 497 | struct simple_card_data *priv; |
5ca8ba41 | 498 | struct snd_soc_dai_link *dai_link; |
fa558c28 | 499 | struct device_node *np = pdev->dev.of_node; |
f89983ef | 500 | struct device *dev = &pdev->dev; |
2080437d | 501 | int num_links, ret; |
6a91a17b | 502 | |
0dd4fc3c | 503 | /* Get the number of DAI links */ |
2080437d | 504 | if (np && of_get_child_by_name(np, "simple-audio-card,dai-link")) |
6a91a17b | 505 | num_links = of_get_child_count(np); |
2080437d | 506 | else |
6a91a17b | 507 | num_links = 1; |
f2390880 | 508 | |
0dd4fc3c | 509 | /* Allocate the private data and the DAI link array */ |
cf7dc23c | 510 | priv = devm_kzalloc(dev, |
6a91a17b | 511 | sizeof(*priv) + sizeof(*dai_link) * num_links, |
cf7dc23c | 512 | GFP_KERNEL); |
ca65b492 | 513 | if (!priv) |
ca919fe4 XL |
514 | return -ENOMEM; |
515 | ||
0dd4fc3c | 516 | /* Init snd_soc_card */ |
ca65b492 JFM |
517 | priv->snd_card.owner = THIS_MODULE; |
518 | priv->snd_card.dev = dev; | |
cf7dc23c | 519 | dai_link = priv->dai_link; |
ca65b492 | 520 | priv->snd_card.dai_link = dai_link; |
6a91a17b | 521 | priv->snd_card.num_links = num_links; |
201a0eac | 522 | |
2dbab978 GU |
523 | priv->gpio_hp_det = -ENOENT; |
524 | priv->gpio_mic_det = -ENOENT; | |
525 | ||
0dd4fc3c | 526 | /* Get room for the other properties */ |
cf7dc23c | 527 | priv->dai_props = devm_kzalloc(dev, |
6a91a17b | 528 | sizeof(*priv->dai_props) * num_links, |
cf7dc23c JFM |
529 | GFP_KERNEL); |
530 | if (!priv->dai_props) | |
531 | return -ENOMEM; | |
532 | ||
fa558c28 | 533 | if (np && of_device_is_available(np)) { |
ca919fe4 | 534 | |
f531913f | 535 | ret = asoc_simple_card_parse_of(np, priv); |
ca919fe4 XL |
536 | if (ret < 0) { |
537 | if (ret != -EPROBE_DEFER) | |
538 | dev_err(dev, "parse error %d\n", ret); | |
e512e001 | 539 | goto err; |
fa558c28 | 540 | } |
6a91a17b | 541 | |
fa558c28 | 542 | } else { |
ca65b492 JFM |
543 | struct asoc_simple_card_info *cinfo; |
544 | ||
545 | cinfo = dev->platform_data; | |
546 | if (!cinfo) { | |
34787d0a XL |
547 | dev_err(dev, "no info for asoc-simple-card\n"); |
548 | return -EINVAL; | |
549 | } | |
fa558c28 | 550 | |
781cbebe NC |
551 | if (!cinfo->name || |
552 | !cinfo->codec_dai.name || | |
553 | !cinfo->codec || | |
554 | !cinfo->platform || | |
7722f830 JFM |
555 | !cinfo->cpu_dai.name) { |
556 | dev_err(dev, "insufficient asoc_simple_card_info settings\n"); | |
557 | return -EINVAL; | |
558 | } | |
2bee9914 | 559 | |
12ffa6fc | 560 | priv->snd_card.name = (cinfo->card) ? cinfo->card : cinfo->name; |
5ca8ba41 JFM |
561 | dai_link->name = cinfo->name; |
562 | dai_link->stream_name = cinfo->name; | |
563 | dai_link->platform_name = cinfo->platform; | |
564 | dai_link->codec_name = cinfo->codec; | |
52008472 JFM |
565 | dai_link->cpu_dai_name = cinfo->cpu_dai.name; |
566 | dai_link->codec_dai_name = cinfo->codec_dai.name; | |
1efb53a2 | 567 | dai_link->dai_fmt = cinfo->daifmt; |
a5960bd5 | 568 | dai_link->init = asoc_simple_card_dai_init; |
cf7dc23c JFM |
569 | memcpy(&priv->dai_props->cpu_dai, &cinfo->cpu_dai, |
570 | sizeof(priv->dai_props->cpu_dai)); | |
571 | memcpy(&priv->dai_props->codec_dai, &cinfo->codec_dai, | |
572 | sizeof(priv->dai_props->codec_dai)); | |
81985bd6 | 573 | |
f2390880 KM |
574 | } |
575 | ||
ca65b492 | 576 | snd_soc_card_set_drvdata(&priv->snd_card, priv); |
f2390880 | 577 | |
e512e001 | 578 | ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card); |
e3c4a28b XL |
579 | if (ret >= 0) |
580 | return ret; | |
e512e001 JFM |
581 | |
582 | err: | |
7ddfdb5c | 583 | asoc_simple_card_unref(&priv->snd_card); |
e512e001 | 584 | return ret; |
f2390880 KM |
585 | } |
586 | ||
e3c4a28b XL |
587 | static int asoc_simple_card_remove(struct platform_device *pdev) |
588 | { | |
3fe24032 DR |
589 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
590 | struct simple_card_data *priv = snd_soc_card_get_drvdata(card); | |
591 | ||
592 | if (gpio_is_valid(priv->gpio_hp_det)) | |
593 | snd_soc_jack_free_gpios(&simple_card_hp_jack, 1, | |
594 | &simple_card_hp_jack_gpio); | |
595 | if (gpio_is_valid(priv->gpio_mic_det)) | |
596 | snd_soc_jack_free_gpios(&simple_card_mic_jack, 1, | |
597 | &simple_card_mic_jack_gpio); | |
598 | ||
7ddfdb5c | 599 | return asoc_simple_card_unref(card); |
e3c4a28b XL |
600 | } |
601 | ||
fa558c28 KM |
602 | static const struct of_device_id asoc_simple_of_match[] = { |
603 | { .compatible = "simple-audio-card", }, | |
604 | {}, | |
605 | }; | |
606 | MODULE_DEVICE_TABLE(of, asoc_simple_of_match); | |
607 | ||
f2390880 KM |
608 | static struct platform_driver asoc_simple_card = { |
609 | .driver = { | |
781cbebe | 610 | .name = "asoc-simple-card", |
fa558c28 | 611 | .of_match_table = asoc_simple_of_match, |
f2390880 | 612 | }, |
781cbebe | 613 | .probe = asoc_simple_card_probe, |
e3c4a28b | 614 | .remove = asoc_simple_card_remove, |
f2390880 KM |
615 | }; |
616 | ||
617 | module_platform_driver(asoc_simple_card); | |
618 | ||
c445be35 | 619 | MODULE_ALIAS("platform:asoc-simple-card"); |
f2390880 KM |
620 | MODULE_LICENSE("GPL"); |
621 | MODULE_DESCRIPTION("ASoC Simple Sound Card"); | |
622 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); |