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; | |
85a4bfd8 | 29 | unsigned int mclk_fs; |
cf7dc23c | 30 | } *dai_props; |
2942a0e2 | 31 | unsigned int mclk_fs; |
3fe24032 | 32 | int gpio_hp_det; |
4476159f | 33 | int gpio_hp_det_invert; |
3fe24032 | 34 | int gpio_mic_det; |
4476159f | 35 | int gpio_mic_det_invert; |
cf7dc23c | 36 | struct snd_soc_dai_link dai_link[]; /* dynamically allocated */ |
45fce594 JFM |
37 | }; |
38 | ||
f531913f | 39 | #define simple_priv_to_dev(priv) ((priv)->snd_card.dev) |
9810f537 KM |
40 | #define simple_priv_to_link(priv, i) ((priv)->snd_card.dai_link + i) |
41 | #define simple_priv_to_props(priv, i) ((priv)->dai_props + i) | |
f531913f | 42 | |
f9911803 JS |
43 | static int asoc_simple_card_startup(struct snd_pcm_substream *substream) |
44 | { | |
45 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
46 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); | |
47 | struct simple_dai_props *dai_props = | |
48 | &priv->dai_props[rtd - rtd->card->rtd]; | |
49 | int ret; | |
50 | ||
51 | ret = clk_prepare_enable(dai_props->cpu_dai.clk); | |
52 | if (ret) | |
53 | return ret; | |
54 | ||
55 | ret = clk_prepare_enable(dai_props->codec_dai.clk); | |
56 | if (ret) | |
57 | clk_disable_unprepare(dai_props->cpu_dai.clk); | |
58 | ||
59 | return ret; | |
60 | } | |
61 | ||
62 | static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream) | |
63 | { | |
64 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
65 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); | |
66 | struct simple_dai_props *dai_props = | |
67 | &priv->dai_props[rtd - rtd->card->rtd]; | |
68 | ||
69 | clk_disable_unprepare(dai_props->cpu_dai.clk); | |
70 | ||
71 | clk_disable_unprepare(dai_props->codec_dai.clk); | |
72 | } | |
73 | ||
2942a0e2 AL |
74 | static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream, |
75 | struct snd_pcm_hw_params *params) | |
76 | { | |
77 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
78 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
e2257971 | 79 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2942a0e2 | 80 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); |
85a4bfd8 AP |
81 | struct simple_dai_props *dai_props = |
82 | &priv->dai_props[rtd - rtd->card->rtd]; | |
83 | unsigned int mclk, mclk_fs = 0; | |
2942a0e2 AL |
84 | int ret = 0; |
85 | ||
85a4bfd8 AP |
86 | if (priv->mclk_fs) |
87 | mclk_fs = priv->mclk_fs; | |
88 | else if (dai_props->mclk_fs) | |
89 | mclk_fs = dai_props->mclk_fs; | |
90 | ||
91 | if (mclk_fs) { | |
92 | mclk = params_rate(params) * mclk_fs; | |
2942a0e2 AL |
93 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, |
94 | SND_SOC_CLOCK_IN); | |
e2257971 AP |
95 | if (ret && ret != -ENOTSUPP) |
96 | goto err; | |
97 | ||
98 | ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, | |
99 | SND_SOC_CLOCK_OUT); | |
100 | if (ret && ret != -ENOTSUPP) | |
101 | goto err; | |
2942a0e2 AL |
102 | } |
103 | ||
e2257971 | 104 | err: |
2942a0e2 AL |
105 | return ret; |
106 | } | |
107 | ||
108 | static struct snd_soc_ops asoc_simple_card_ops = { | |
f9911803 JS |
109 | .startup = asoc_simple_card_startup, |
110 | .shutdown = asoc_simple_card_shutdown, | |
2942a0e2 AL |
111 | .hw_params = asoc_simple_card_hw_params, |
112 | }; | |
113 | ||
3fe24032 DR |
114 | static struct snd_soc_jack simple_card_hp_jack; |
115 | static struct snd_soc_jack_pin simple_card_hp_jack_pins[] = { | |
116 | { | |
117 | .pin = "Headphones", | |
118 | .mask = SND_JACK_HEADPHONE, | |
119 | }, | |
120 | }; | |
121 | static struct snd_soc_jack_gpio simple_card_hp_jack_gpio = { | |
122 | .name = "Headphone detection", | |
123 | .report = SND_JACK_HEADPHONE, | |
124 | .debounce_time = 150, | |
125 | }; | |
126 | ||
127 | static struct snd_soc_jack simple_card_mic_jack; | |
128 | static struct snd_soc_jack_pin simple_card_mic_jack_pins[] = { | |
129 | { | |
130 | .pin = "Mic Jack", | |
131 | .mask = SND_JACK_MICROPHONE, | |
132 | }, | |
133 | }; | |
134 | static struct snd_soc_jack_gpio simple_card_mic_jack_gpio = { | |
135 | .name = "Mic detection", | |
136 | .report = SND_JACK_MICROPHONE, | |
137 | .debounce_time = 150, | |
138 | }; | |
139 | ||
a4a2992c | 140 | static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai, |
30d0341e | 141 | struct asoc_simple_dai *set) |
a4a2992c | 142 | { |
4763ebe2 | 143 | int ret; |
a4a2992c | 144 | |
4763ebe2 | 145 | if (set->sysclk) { |
a4a2992c | 146 | ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0); |
4763ebe2 XL |
147 | if (ret && ret != -ENOTSUPP) { |
148 | dev_err(dai->dev, "simple-card: set_sysclk error\n"); | |
149 | goto err; | |
150 | } | |
151 | } | |
152 | ||
6ff62eed XL |
153 | if (set->slots) { |
154 | ret = snd_soc_dai_set_tdm_slot(dai, 0, 0, | |
155 | set->slots, | |
156 | set->slot_width); | |
157 | if (ret && ret != -ENOTSUPP) { | |
158 | dev_err(dai->dev, "simple-card: set_tdm_slot error\n"); | |
159 | goto err; | |
160 | } | |
161 | } | |
162 | ||
4763ebe2 | 163 | ret = 0; |
a4a2992c | 164 | |
4763ebe2 | 165 | err: |
a4a2992c KM |
166 | return ret; |
167 | } | |
168 | ||
f2390880 KM |
169 | static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) |
170 | { | |
781cbebe | 171 | struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); |
f2390880 KM |
172 | struct snd_soc_dai *codec = rtd->codec_dai; |
173 | struct snd_soc_dai *cpu = rtd->cpu_dai; | |
6a91a17b JFM |
174 | struct simple_dai_props *dai_props; |
175 | int num, ret; | |
f2390880 | 176 | |
6a91a17b JFM |
177 | num = rtd - rtd->card->rtd; |
178 | dai_props = &priv->dai_props[num]; | |
179 | ret = __asoc_simple_card_dai_init(codec, &dai_props->codec_dai); | |
a4a2992c KM |
180 | if (ret < 0) |
181 | return ret; | |
f2390880 | 182 | |
6a91a17b | 183 | ret = __asoc_simple_card_dai_init(cpu, &dai_props->cpu_dai); |
a4a2992c KM |
184 | if (ret < 0) |
185 | return ret; | |
f2390880 | 186 | |
3fe24032 | 187 | if (gpio_is_valid(priv->gpio_hp_det)) { |
386669fc LPC |
188 | snd_soc_card_jack_new(rtd->card, "Headphones", |
189 | SND_JACK_HEADPHONE, | |
190 | &simple_card_hp_jack, | |
191 | simple_card_hp_jack_pins, | |
192 | ARRAY_SIZE(simple_card_hp_jack_pins)); | |
3fe24032 DR |
193 | |
194 | simple_card_hp_jack_gpio.gpio = priv->gpio_hp_det; | |
4476159f | 195 | simple_card_hp_jack_gpio.invert = priv->gpio_hp_det_invert; |
3fe24032 DR |
196 | snd_soc_jack_add_gpios(&simple_card_hp_jack, 1, |
197 | &simple_card_hp_jack_gpio); | |
198 | } | |
199 | ||
200 | if (gpio_is_valid(priv->gpio_mic_det)) { | |
386669fc LPC |
201 | snd_soc_card_jack_new(rtd->card, "Mic Jack", |
202 | SND_JACK_MICROPHONE, | |
203 | &simple_card_mic_jack, | |
204 | simple_card_mic_jack_pins, | |
205 | ARRAY_SIZE(simple_card_mic_jack_pins)); | |
3fe24032 | 206 | simple_card_mic_jack_gpio.gpio = priv->gpio_mic_det; |
4476159f | 207 | simple_card_mic_jack_gpio.invert = priv->gpio_mic_det_invert; |
3fe24032 DR |
208 | snd_soc_jack_add_gpios(&simple_card_mic_jack, 1, |
209 | &simple_card_mic_jack_gpio); | |
210 | } | |
f2390880 KM |
211 | return 0; |
212 | } | |
213 | ||
fa558c28 KM |
214 | static int |
215 | asoc_simple_card_sub_parse_of(struct device_node *np, | |
216 | struct asoc_simple_dai *dai, | |
8ea21348 | 217 | struct device_node **p_node, |
7c7b9cf5 KM |
218 | const char **name, |
219 | int *args_count) | |
fa558c28 | 220 | { |
7c7b9cf5 | 221 | struct of_phandle_args args; |
fa558c28 | 222 | struct clk *clk; |
c7099eb1 | 223 | u32 val; |
fa558c28 KM |
224 | int ret; |
225 | ||
226 | /* | |
0dd4fc3c | 227 | * Get node via "sound-dai = <&phandle port>" |
fa558c28 KM |
228 | * it will be used as xxx_of_node on soc_bind_dai_link() |
229 | */ | |
7c7b9cf5 KM |
230 | ret = of_parse_phandle_with_args(np, "sound-dai", |
231 | "#sound-dai-cells", 0, &args); | |
232 | if (ret) | |
233 | return ret; | |
234 | ||
235 | *p_node = args.np; | |
236 | ||
237 | if (args_count) | |
238 | *args_count = args.args_count; | |
fa558c28 | 239 | |
0dd4fc3c | 240 | /* Get dai->name */ |
52008472 | 241 | ret = snd_soc_of_get_dai_name(np, name); |
fa558c28 | 242 | if (ret < 0) |
e512e001 | 243 | return ret; |
fa558c28 | 244 | |
0dd4fc3c | 245 | /* Parse TDM slot */ |
6ff62eed XL |
246 | ret = snd_soc_of_parse_tdm_slot(np, &dai->slots, &dai->slot_width); |
247 | if (ret) | |
e512e001 | 248 | return ret; |
6ff62eed | 249 | |
fa558c28 | 250 | /* |
0dd4fc3c XL |
251 | * Parse dai->sysclk come from "clocks = <&xxx>" |
252 | * (if system has common clock) | |
fa558c28 | 253 | * or "system-clock-frequency = <xxx>" |
71467e46 | 254 | * or device's module clock. |
fa558c28 | 255 | */ |
71467e46 XL |
256 | if (of_property_read_bool(np, "clocks")) { |
257 | clk = of_clk_get(np, 0); | |
258 | if (IS_ERR(clk)) { | |
259 | ret = PTR_ERR(clk); | |
e512e001 | 260 | return ret; |
71467e46 XL |
261 | } |
262 | ||
263 | dai->sysclk = clk_get_rate(clk); | |
f9911803 | 264 | dai->clk = clk; |
c7099eb1 JS |
265 | } else if (!of_property_read_u32(np, "system-clock-frequency", &val)) { |
266 | dai->sysclk = val; | |
71467e46 | 267 | } else { |
88a60e55 | 268 | clk = of_clk_get(args.np, 0); |
e2a19ac6 XL |
269 | if (!IS_ERR(clk)) |
270 | dai->sysclk = clk_get_rate(clk); | |
71467e46 | 271 | } |
fa558c28 | 272 | |
e512e001 | 273 | return 0; |
fa558c28 KM |
274 | } |
275 | ||
1b5721b2 KM |
276 | static int asoc_simple_card_parse_daifmt(struct device_node *node, |
277 | struct simple_card_data *priv, | |
1b5721b2 KM |
278 | struct device_node *codec, |
279 | char *prefix, int idx) | |
280 | { | |
1efb53a2 | 281 | struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx); |
1b5721b2 KM |
282 | struct device *dev = simple_priv_to_dev(priv); |
283 | struct device_node *bitclkmaster = NULL; | |
284 | struct device_node *framemaster = NULL; | |
1b5721b2 KM |
285 | unsigned int daifmt; |
286 | ||
287 | daifmt = snd_soc_of_parse_daifmt(node, prefix, | |
288 | &bitclkmaster, &framemaster); | |
289 | daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK; | |
290 | ||
291 | if (strlen(prefix) && !bitclkmaster && !framemaster) { | |
292 | /* | |
293 | * No dai-link level and master setting was not found from | |
294 | * sound node level, revert back to legacy DT parsing and | |
295 | * take the settings from codec node. | |
296 | */ | |
297 | dev_dbg(dev, "Revert to legacy daifmt parsing\n"); | |
298 | ||
1efb53a2 | 299 | daifmt = snd_soc_of_parse_daifmt(codec, NULL, NULL, NULL) | |
1b5721b2 KM |
300 | (daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK); |
301 | } else { | |
302 | if (codec == bitclkmaster) | |
303 | daifmt |= (codec == framemaster) ? | |
304 | SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS; | |
305 | else | |
306 | daifmt |= (codec == framemaster) ? | |
307 | SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS; | |
1b5721b2 KM |
308 | } |
309 | ||
1efb53a2 LPC |
310 | dai_link->dai_fmt = daifmt; |
311 | ||
1b5721b2 KM |
312 | of_node_put(bitclkmaster); |
313 | of_node_put(framemaster); | |
314 | ||
315 | return 0; | |
316 | } | |
317 | ||
2d82eeb0 | 318 | static int asoc_simple_card_dai_link_of(struct device_node *node, |
f531913f | 319 | struct simple_card_data *priv, |
9810f537 | 320 | int idx, |
2d82eeb0 | 321 | bool is_top_level_node) |
6a91a17b | 322 | { |
f531913f | 323 | struct device *dev = simple_priv_to_dev(priv); |
9810f537 KM |
324 | struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx); |
325 | struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx); | |
1b5721b2 | 326 | struct device_node *cpu = NULL; |
e0ae225b | 327 | struct device_node *plat = NULL; |
1b5721b2 | 328 | struct device_node *codec = NULL; |
b3ca11ff JS |
329 | char *name; |
330 | char prop[128]; | |
331 | char *prefix = ""; | |
7c7b9cf5 | 332 | int ret, cpu_args; |
85a4bfd8 | 333 | u32 val; |
6a91a17b | 334 | |
2080437d | 335 | /* For single DAI link & old style of DT node */ |
64872215 JS |
336 | if (is_top_level_node) |
337 | prefix = "simple-audio-card,"; | |
b3ca11ff | 338 | |
b3ca11ff | 339 | snprintf(prop, sizeof(prop), "%scpu", prefix); |
1b5721b2 KM |
340 | cpu = of_get_child_by_name(node, prop); |
341 | ||
e0ae225b JN |
342 | snprintf(prop, sizeof(prop), "%splat", prefix); |
343 | plat = of_get_child_by_name(node, prop); | |
344 | ||
1b5721b2 KM |
345 | snprintf(prop, sizeof(prop), "%scodec", prefix); |
346 | codec = of_get_child_by_name(node, prop); | |
347 | ||
348 | if (!cpu || !codec) { | |
b3ca11ff | 349 | ret = -EINVAL; |
966b8063 | 350 | dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop); |
b3ca11ff | 351 | goto dai_link_of_err; |
6a91a17b | 352 | } |
b3ca11ff | 353 | |
1b5721b2 | 354 | ret = asoc_simple_card_parse_daifmt(node, priv, |
7195d920 | 355 | codec, prefix, idx); |
1b5721b2 KM |
356 | if (ret < 0) |
357 | goto dai_link_of_err; | |
358 | ||
85a4bfd8 AP |
359 | if (!of_property_read_u32(node, "mclk-fs", &val)) |
360 | dai_props->mclk_fs = val; | |
361 | ||
1b5721b2 | 362 | ret = asoc_simple_card_sub_parse_of(cpu, &dai_props->cpu_dai, |
b3ca11ff | 363 | &dai_link->cpu_of_node, |
7c7b9cf5 KM |
364 | &dai_link->cpu_dai_name, |
365 | &cpu_args); | |
6a91a17b | 366 | if (ret < 0) |
b3ca11ff JS |
367 | goto dai_link_of_err; |
368 | ||
1b5721b2 | 369 | ret = asoc_simple_card_sub_parse_of(codec, &dai_props->codec_dai, |
b3ca11ff | 370 | &dai_link->codec_of_node, |
7c7b9cf5 | 371 | &dai_link->codec_dai_name, NULL); |
b3ca11ff JS |
372 | if (ret < 0) |
373 | goto dai_link_of_err; | |
374 | ||
b3ca11ff | 375 | if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) { |
781cbebe NC |
376 | ret = -EINVAL; |
377 | goto dai_link_of_err; | |
b3ca11ff JS |
378 | } |
379 | ||
e0ae225b JN |
380 | if (plat) { |
381 | struct of_phandle_args args; | |
382 | ||
383 | ret = of_parse_phandle_with_args(plat, "sound-dai", | |
384 | "#sound-dai-cells", 0, &args); | |
385 | dai_link->platform_of_node = args.np; | |
386 | } else { | |
387 | /* Assumes platform == cpu */ | |
388 | dai_link->platform_of_node = dai_link->cpu_of_node; | |
389 | } | |
b3ca11ff | 390 | |
0dd4fc3c | 391 | /* DAI link name is created from CPU/CODEC dai name */ |
b3ca11ff JS |
392 | name = devm_kzalloc(dev, |
393 | strlen(dai_link->cpu_dai_name) + | |
394 | strlen(dai_link->codec_dai_name) + 2, | |
395 | GFP_KERNEL); | |
31f3032c VT |
396 | if (!name) { |
397 | ret = -ENOMEM; | |
398 | goto dai_link_of_err; | |
399 | } | |
400 | ||
b3ca11ff JS |
401 | sprintf(name, "%s-%s", dai_link->cpu_dai_name, |
402 | dai_link->codec_dai_name); | |
403 | dai_link->name = dai_link->stream_name = name; | |
2942a0e2 | 404 | dai_link->ops = &asoc_simple_card_ops; |
a5960bd5 | 405 | dai_link->init = asoc_simple_card_dai_init; |
b3ca11ff JS |
406 | |
407 | dev_dbg(dev, "\tname : %s\n", dai_link->stream_name); | |
1efb53a2 LPC |
408 | dev_dbg(dev, "\tformat : %04x\n", dai_link->dai_fmt); |
409 | dev_dbg(dev, "\tcpu : %s / %d\n", | |
b3ca11ff | 410 | dai_link->cpu_dai_name, |
b3ca11ff | 411 | dai_props->cpu_dai.sysclk); |
1efb53a2 | 412 | dev_dbg(dev, "\tcodec : %s / %d\n", |
b3ca11ff | 413 | dai_link->codec_dai_name, |
b3ca11ff JS |
414 | dai_props->codec_dai.sysclk); |
415 | ||
179949bc | 416 | /* |
0dd4fc3c XL |
417 | * In soc_bind_dai_link() will check cpu name after |
418 | * of_node matching if dai_link has cpu_dai_name. | |
419 | * but, it will never match if name was created by | |
420 | * fmt_single_name() remove cpu_dai_name if cpu_args | |
421 | * was 0. See: | |
179949bc KM |
422 | * fmt_single_name() |
423 | * fmt_multiple_name() | |
424 | */ | |
7c7b9cf5 KM |
425 | if (!cpu_args) |
426 | dai_link->cpu_dai_name = NULL; | |
179949bc | 427 | |
b3ca11ff | 428 | dai_link_of_err: |
1b5721b2 KM |
429 | of_node_put(cpu); |
430 | of_node_put(codec); | |
431 | ||
6a91a17b JFM |
432 | return ret; |
433 | } | |
434 | ||
fa558c28 | 435 | static int asoc_simple_card_parse_of(struct device_node *node, |
f531913f | 436 | struct simple_card_data *priv) |
fa558c28 | 437 | { |
f531913f | 438 | struct device *dev = simple_priv_to_dev(priv); |
4476159f | 439 | enum of_gpio_flags flags; |
c7099eb1 | 440 | u32 val; |
d4c22094 | 441 | int ret; |
fa558c28 | 442 | |
2080437d XL |
443 | if (!node) |
444 | return -EINVAL; | |
445 | ||
0dd4fc3c | 446 | /* Parse the card name from DT */ |
2772555b XL |
447 | snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name"); |
448 | ||
0dd4fc3c | 449 | /* The off-codec widgets */ |
9d681f5b XL |
450 | if (of_property_read_bool(node, "simple-audio-card,widgets")) { |
451 | ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card, | |
452 | "simple-audio-card,widgets"); | |
453 | if (ret) | |
454 | return ret; | |
455 | } | |
456 | ||
d4c22094 | 457 | /* DAPM routes */ |
8c0b8230 | 458 | if (of_property_read_bool(node, "simple-audio-card,routing")) { |
b367a325 | 459 | ret = snd_soc_of_parse_audio_routing(&priv->snd_card, |
8c0b8230 | 460 | "simple-audio-card,routing"); |
f87a3e82 XL |
461 | if (ret) |
462 | return ret; | |
463 | } | |
d4c22094 | 464 | |
2942a0e2 | 465 | /* Factor to mclk, used in hw_params() */ |
c7099eb1 JS |
466 | ret = of_property_read_u32(node, "simple-audio-card,mclk-fs", &val); |
467 | if (ret == 0) | |
468 | priv->mclk_fs = val; | |
2942a0e2 | 469 | |
b3ca11ff JS |
470 | dev_dbg(dev, "New simple-card: %s\n", priv->snd_card.name ? |
471 | priv->snd_card.name : ""); | |
472 | ||
2080437d XL |
473 | /* Single/Muti DAI link(s) & New style of DT node */ |
474 | if (of_get_child_by_name(node, "simple-audio-card,dai-link")) { | |
b3ca11ff | 475 | struct device_node *np = NULL; |
a44a750e KM |
476 | int i = 0; |
477 | ||
478 | for_each_child_of_node(node, np) { | |
b3ca11ff | 479 | dev_dbg(dev, "\tlink %d:\n", i); |
f531913f | 480 | ret = asoc_simple_card_dai_link_of(np, priv, |
9810f537 | 481 | i, false); |
b3ca11ff JS |
482 | if (ret < 0) { |
483 | of_node_put(np); | |
484 | return ret; | |
485 | } | |
a44a750e | 486 | i++; |
6a91a17b | 487 | } |
b3ca11ff | 488 | } else { |
2080437d | 489 | /* For single DAI link & old style of DT node */ |
9810f537 | 490 | ret = asoc_simple_card_dai_link_of(node, priv, 0, true); |
6a91a17b | 491 | if (ret < 0) |
b3ca11ff | 492 | return ret; |
6a91a17b | 493 | } |
dd41e0c4 | 494 | |
4476159f J |
495 | priv->gpio_hp_det = of_get_named_gpio_flags(node, |
496 | "simple-audio-card,hp-det-gpio", 0, &flags); | |
497 | priv->gpio_hp_det_invert = !!(flags & OF_GPIO_ACTIVE_LOW); | |
3fe24032 DR |
498 | if (priv->gpio_hp_det == -EPROBE_DEFER) |
499 | return -EPROBE_DEFER; | |
500 | ||
4476159f J |
501 | priv->gpio_mic_det = of_get_named_gpio_flags(node, |
502 | "simple-audio-card,mic-det-gpio", 0, &flags); | |
503 | priv->gpio_mic_det_invert = !!(flags & OF_GPIO_ACTIVE_LOW); | |
3fe24032 DR |
504 | if (priv->gpio_mic_det == -EPROBE_DEFER) |
505 | return -EPROBE_DEFER; | |
506 | ||
2772555b | 507 | if (!priv->snd_card.name) |
b3ca11ff | 508 | priv->snd_card.name = priv->snd_card.dai_link->name; |
f687d900 | 509 | |
fa558c28 KM |
510 | return 0; |
511 | } | |
512 | ||
0dd4fc3c | 513 | /* Decrease the reference count of the device nodes */ |
7ddfdb5c | 514 | static int asoc_simple_card_unref(struct snd_soc_card *card) |
e512e001 | 515 | { |
e512e001 | 516 | struct snd_soc_dai_link *dai_link; |
e512e001 JFM |
517 | int num_links; |
518 | ||
519 | for (num_links = 0, dai_link = card->dai_link; | |
520 | num_links < card->num_links; | |
521 | num_links++, dai_link++) { | |
0099c762 JFM |
522 | of_node_put(dai_link->cpu_of_node); |
523 | of_node_put(dai_link->codec_of_node); | |
e512e001 JFM |
524 | } |
525 | return 0; | |
526 | } | |
527 | ||
f2390880 KM |
528 | static int asoc_simple_card_probe(struct platform_device *pdev) |
529 | { | |
45fce594 | 530 | struct simple_card_data *priv; |
5ca8ba41 | 531 | struct snd_soc_dai_link *dai_link; |
fa558c28 | 532 | struct device_node *np = pdev->dev.of_node; |
f89983ef | 533 | struct device *dev = &pdev->dev; |
2080437d | 534 | int num_links, ret; |
6a91a17b | 535 | |
0dd4fc3c | 536 | /* Get the number of DAI links */ |
2080437d | 537 | if (np && of_get_child_by_name(np, "simple-audio-card,dai-link")) |
6a91a17b | 538 | num_links = of_get_child_count(np); |
2080437d | 539 | else |
6a91a17b | 540 | num_links = 1; |
f2390880 | 541 | |
0dd4fc3c | 542 | /* Allocate the private data and the DAI link array */ |
cf7dc23c | 543 | priv = devm_kzalloc(dev, |
6a91a17b | 544 | sizeof(*priv) + sizeof(*dai_link) * num_links, |
cf7dc23c | 545 | GFP_KERNEL); |
ca65b492 | 546 | if (!priv) |
ca919fe4 XL |
547 | return -ENOMEM; |
548 | ||
0dd4fc3c | 549 | /* Init snd_soc_card */ |
ca65b492 JFM |
550 | priv->snd_card.owner = THIS_MODULE; |
551 | priv->snd_card.dev = dev; | |
cf7dc23c | 552 | dai_link = priv->dai_link; |
ca65b492 | 553 | priv->snd_card.dai_link = dai_link; |
6a91a17b | 554 | priv->snd_card.num_links = num_links; |
201a0eac | 555 | |
2dbab978 GU |
556 | priv->gpio_hp_det = -ENOENT; |
557 | priv->gpio_mic_det = -ENOENT; | |
558 | ||
0dd4fc3c | 559 | /* Get room for the other properties */ |
cf7dc23c | 560 | priv->dai_props = devm_kzalloc(dev, |
6a91a17b | 561 | sizeof(*priv->dai_props) * num_links, |
cf7dc23c JFM |
562 | GFP_KERNEL); |
563 | if (!priv->dai_props) | |
564 | return -ENOMEM; | |
565 | ||
fa558c28 | 566 | if (np && of_device_is_available(np)) { |
ca919fe4 | 567 | |
f531913f | 568 | ret = asoc_simple_card_parse_of(np, priv); |
ca919fe4 XL |
569 | if (ret < 0) { |
570 | if (ret != -EPROBE_DEFER) | |
571 | dev_err(dev, "parse error %d\n", ret); | |
e512e001 | 572 | goto err; |
fa558c28 | 573 | } |
6a91a17b | 574 | |
fa558c28 | 575 | } else { |
ca65b492 JFM |
576 | struct asoc_simple_card_info *cinfo; |
577 | ||
578 | cinfo = dev->platform_data; | |
579 | if (!cinfo) { | |
34787d0a XL |
580 | dev_err(dev, "no info for asoc-simple-card\n"); |
581 | return -EINVAL; | |
582 | } | |
fa558c28 | 583 | |
781cbebe NC |
584 | if (!cinfo->name || |
585 | !cinfo->codec_dai.name || | |
586 | !cinfo->codec || | |
587 | !cinfo->platform || | |
7722f830 JFM |
588 | !cinfo->cpu_dai.name) { |
589 | dev_err(dev, "insufficient asoc_simple_card_info settings\n"); | |
590 | return -EINVAL; | |
591 | } | |
2bee9914 | 592 | |
12ffa6fc | 593 | priv->snd_card.name = (cinfo->card) ? cinfo->card : cinfo->name; |
5ca8ba41 JFM |
594 | dai_link->name = cinfo->name; |
595 | dai_link->stream_name = cinfo->name; | |
596 | dai_link->platform_name = cinfo->platform; | |
597 | dai_link->codec_name = cinfo->codec; | |
52008472 JFM |
598 | dai_link->cpu_dai_name = cinfo->cpu_dai.name; |
599 | dai_link->codec_dai_name = cinfo->codec_dai.name; | |
1efb53a2 | 600 | dai_link->dai_fmt = cinfo->daifmt; |
a5960bd5 | 601 | dai_link->init = asoc_simple_card_dai_init; |
cf7dc23c JFM |
602 | memcpy(&priv->dai_props->cpu_dai, &cinfo->cpu_dai, |
603 | sizeof(priv->dai_props->cpu_dai)); | |
604 | memcpy(&priv->dai_props->codec_dai, &cinfo->codec_dai, | |
605 | sizeof(priv->dai_props->codec_dai)); | |
81985bd6 | 606 | |
f2390880 KM |
607 | } |
608 | ||
ca65b492 | 609 | snd_soc_card_set_drvdata(&priv->snd_card, priv); |
f2390880 | 610 | |
e512e001 | 611 | ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card); |
e3c4a28b XL |
612 | if (ret >= 0) |
613 | return ret; | |
e512e001 JFM |
614 | |
615 | err: | |
7ddfdb5c | 616 | asoc_simple_card_unref(&priv->snd_card); |
e512e001 | 617 | return ret; |
f2390880 KM |
618 | } |
619 | ||
e3c4a28b XL |
620 | static int asoc_simple_card_remove(struct platform_device *pdev) |
621 | { | |
3fe24032 DR |
622 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
623 | struct simple_card_data *priv = snd_soc_card_get_drvdata(card); | |
624 | ||
625 | if (gpio_is_valid(priv->gpio_hp_det)) | |
626 | snd_soc_jack_free_gpios(&simple_card_hp_jack, 1, | |
627 | &simple_card_hp_jack_gpio); | |
628 | if (gpio_is_valid(priv->gpio_mic_det)) | |
629 | snd_soc_jack_free_gpios(&simple_card_mic_jack, 1, | |
630 | &simple_card_mic_jack_gpio); | |
631 | ||
7ddfdb5c | 632 | return asoc_simple_card_unref(card); |
e3c4a28b XL |
633 | } |
634 | ||
fa558c28 KM |
635 | static const struct of_device_id asoc_simple_of_match[] = { |
636 | { .compatible = "simple-audio-card", }, | |
637 | {}, | |
638 | }; | |
639 | MODULE_DEVICE_TABLE(of, asoc_simple_of_match); | |
640 | ||
f2390880 KM |
641 | static struct platform_driver asoc_simple_card = { |
642 | .driver = { | |
781cbebe | 643 | .name = "asoc-simple-card", |
fa558c28 | 644 | .of_match_table = asoc_simple_of_match, |
f2390880 | 645 | }, |
781cbebe | 646 | .probe = asoc_simple_card_probe, |
e3c4a28b | 647 | .remove = asoc_simple_card_remove, |
f2390880 KM |
648 | }; |
649 | ||
650 | module_platform_driver(asoc_simple_card); | |
651 | ||
c445be35 | 652 | MODULE_ALIAS("platform:asoc-simple-card"); |
f2390880 KM |
653 | MODULE_LICENSE("GPL"); |
654 | MODULE_DESCRIPTION("ASoC Simple Sound Card"); | |
655 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); |