2 * Copyright (C) 2015 - 2016 Samsung Electronics Co., Ltd.
4 * Authors: Inha Song <ideal.song@samsung.com>
5 * Sylwester Nawrocki <s.nawrocki@samsung.com>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
13 #include <linux/clk.h>
14 #include <linux/gpio.h>
15 #include <linux/gpio/consumer.h>
16 #include <linux/module.h>
18 #include <sound/pcm_params.h>
19 #include <sound/soc.h>
22 #include "../codecs/wm5110.h"
25 * The source clock is XCLKOUT with its mux set to the external fixed rate
28 #define MCLK_RATE 24000000U
30 #define TM2_DAI_AIF1 0
31 #define TM2_DAI_AIF2 1
33 struct tm2_machine_priv {
34 struct snd_soc_codec *codec;
35 unsigned int sysclk_rate;
36 struct gpio_desc *gpio_mic_bias;
39 static int tm2_start_sysclk(struct snd_soc_card *card)
41 struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card);
42 struct snd_soc_codec *codec = priv->codec;
45 ret = snd_soc_codec_set_pll(codec, WM5110_FLL1_REFCLK,
46 ARIZONA_FLL_SRC_MCLK1,
50 dev_err(codec->dev, "Failed to set FLL1 source: %d\n", ret);
54 ret = snd_soc_codec_set_pll(codec, WM5110_FLL1,
55 ARIZONA_FLL_SRC_MCLK1,
59 dev_err(codec->dev, "Failed to start FLL1: %d\n", ret);
63 ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK,
68 dev_err(codec->dev, "Failed to set SYSCLK source: %d\n", ret);
75 static int tm2_stop_sysclk(struct snd_soc_card *card)
77 struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card);
78 struct snd_soc_codec *codec = priv->codec;
81 ret = snd_soc_codec_set_pll(codec, WM5110_FLL1, 0, 0, 0);
83 dev_err(codec->dev, "Failed to stop FLL1: %d\n", ret);
87 ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK,
88 ARIZONA_CLK_SRC_FLL1, 0, 0);
90 dev_err(codec->dev, "Failed to stop SYSCLK: %d\n", ret);
97 static int tm2_aif1_hw_params(struct snd_pcm_substream *substream,
98 struct snd_pcm_hw_params *params)
100 struct snd_soc_pcm_runtime *rtd = substream->private_data;
101 struct snd_soc_codec *codec = rtd->codec;
102 struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(rtd->card);
104 switch (params_rate(params)) {
114 /* Highest possible SYSCLK frequency: 147.456MHz */
115 priv->sysclk_rate = 147456000U;
122 /* Highest possible SYSCLK frequency: 135.4752 MHz */
123 priv->sysclk_rate = 135475200U;
126 dev_err(codec->dev, "Not supported sample rate: %d\n",
127 params_rate(params));
131 return tm2_start_sysclk(rtd->card);
134 static struct snd_soc_ops tm2_aif1_ops = {
135 .hw_params = tm2_aif1_hw_params,
138 static int tm2_aif2_hw_params(struct snd_pcm_substream *substream,
139 struct snd_pcm_hw_params *params)
141 struct snd_soc_pcm_runtime *rtd = substream->private_data;
142 struct snd_soc_codec *codec = rtd->codec;
143 unsigned int asyncclk_rate;
146 switch (params_rate(params)) {
150 /* Highest possible ASYNCCLK frequency: 49.152MHz */
151 asyncclk_rate = 49152000U;
154 /* Highest possible ASYNCCLK frequency: 45.1584 MHz */
155 asyncclk_rate = 45158400U;
158 dev_err(codec->dev, "Not supported sample rate: %d\n",
159 params_rate(params));
163 ret = snd_soc_codec_set_pll(codec, WM5110_FLL2_REFCLK,
164 ARIZONA_FLL_SRC_MCLK1,
168 dev_err(codec->dev, "Failed to set FLL2 source: %d\n", ret);
172 ret = snd_soc_codec_set_pll(codec, WM5110_FLL2,
173 ARIZONA_FLL_SRC_MCLK1,
177 dev_err(codec->dev, "Failed to start FLL2: %d\n", ret);
181 ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK,
182 ARIZONA_CLK_SRC_FLL2,
186 dev_err(codec->dev, "Failed to set ASYNCCLK source: %d\n", ret);
193 static int tm2_aif2_hw_free(struct snd_pcm_substream *substream)
195 struct snd_soc_pcm_runtime *rtd = substream->private_data;
196 struct snd_soc_codec *codec = rtd->codec;
200 ret = snd_soc_codec_set_pll(codec, WM5110_FLL2, ARIZONA_FLL_SRC_MCLK1,
203 dev_err(codec->dev, "Failed to stop FLL2: %d\n", ret);
208 static struct snd_soc_ops tm2_aif2_ops = {
209 .hw_params = tm2_aif2_hw_params,
210 .hw_free = tm2_aif2_hw_free,
213 static int tm2_mic_bias(struct snd_soc_dapm_widget *w,
214 struct snd_kcontrol *kcontrol, int event)
216 struct snd_soc_card *card = w->dapm->card;
217 struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card);
220 case SND_SOC_DAPM_PRE_PMU:
221 gpiod_set_value_cansleep(priv->gpio_mic_bias, 1);
223 case SND_SOC_DAPM_POST_PMD:
224 gpiod_set_value_cansleep(priv->gpio_mic_bias, 0);
231 static int tm2_set_bias_level(struct snd_soc_card *card,
232 struct snd_soc_dapm_context *dapm,
233 enum snd_soc_bias_level level)
235 struct snd_soc_pcm_runtime *rtd;
237 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
239 if (dapm->dev != rtd->codec_dai->dev)
243 case SND_SOC_BIAS_STANDBY:
244 if (card->dapm.bias_level == SND_SOC_BIAS_OFF)
245 tm2_start_sysclk(card);
247 case SND_SOC_BIAS_OFF:
248 tm2_stop_sysclk(card);
257 static struct snd_soc_aux_dev tm2_speaker_amp_dev;
259 static int tm2_late_probe(struct snd_soc_card *card)
261 struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card);
262 struct snd_soc_dai_link_component dlc = { 0 };
263 unsigned int ch_map[] = { 0, 1 };
264 struct snd_soc_dai *amp_pdm_dai;
265 struct snd_soc_pcm_runtime *rtd;
266 struct snd_soc_dai *aif1_dai;
267 struct snd_soc_dai *aif2_dai;
270 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[TM2_DAI_AIF1].name);
271 aif1_dai = rtd->codec_dai;
272 priv->codec = rtd->codec;
274 ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0);
276 dev_err(aif1_dai->dev, "Failed to set SYSCLK: %d\n", ret);
280 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[TM2_DAI_AIF2].name);
281 aif2_dai = rtd->codec_dai;
283 ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0);
285 dev_err(aif2_dai->dev, "Failed to set ASYNCCLK: %d\n", ret);
289 dlc.of_node = tm2_speaker_amp_dev.codec_of_node;
290 amp_pdm_dai = snd_soc_find_dai(&dlc);
294 /* Set the MAX98504 V/I sense PDM Tx DAI channel mapping */
295 ret = snd_soc_dai_set_channel_map(amp_pdm_dai, ARRAY_SIZE(ch_map),
300 ret = snd_soc_dai_set_tdm_slot(amp_pdm_dai, 0x3, 0x0, 2, 16);
307 static const struct snd_kcontrol_new tm2_controls[] = {
308 SOC_DAPM_PIN_SWITCH("HP"),
309 SOC_DAPM_PIN_SWITCH("SPK"),
310 SOC_DAPM_PIN_SWITCH("RCV"),
311 SOC_DAPM_PIN_SWITCH("VPS"),
312 SOC_DAPM_PIN_SWITCH("HDMI"),
314 SOC_DAPM_PIN_SWITCH("Main Mic"),
315 SOC_DAPM_PIN_SWITCH("Sub Mic"),
316 SOC_DAPM_PIN_SWITCH("Third Mic"),
318 SOC_DAPM_PIN_SWITCH("Headset Mic"),
321 static const struct snd_soc_dapm_widget tm2_dapm_widgets[] = {
322 SND_SOC_DAPM_HP("HP", NULL),
323 SND_SOC_DAPM_SPK("SPK", NULL),
324 SND_SOC_DAPM_SPK("RCV", NULL),
325 SND_SOC_DAPM_LINE("VPS", NULL),
326 SND_SOC_DAPM_LINE("HDMI", NULL),
328 SND_SOC_DAPM_MIC("Main Mic", tm2_mic_bias),
329 SND_SOC_DAPM_MIC("Sub Mic", NULL),
330 SND_SOC_DAPM_MIC("Third Mic", NULL),
332 SND_SOC_DAPM_MIC("Headset Mic", NULL),
335 static const struct snd_soc_component_driver tm2_component = {
339 static struct snd_soc_dai_driver tm2_ext_dai[] = {
341 .name = "Voice call",
347 .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
348 SNDRV_PCM_RATE_48000),
349 .formats = SNDRV_PCM_FMTBIT_S16_LE,
356 .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
357 SNDRV_PCM_RATE_48000),
358 .formats = SNDRV_PCM_FMTBIT_S16_LE,
368 .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000),
369 .formats = SNDRV_PCM_FMTBIT_S16_LE,
376 .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000),
377 .formats = SNDRV_PCM_FMTBIT_S16_LE,
382 static struct snd_soc_dai_link tm2_dai_links[] = {
384 .name = "WM5110 AIF1",
385 .stream_name = "HiFi Primary",
386 .codec_dai_name = "wm5110-aif1",
387 .ops = &tm2_aif1_ops,
388 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
389 SND_SOC_DAIFMT_CBM_CFM,
391 .name = "WM5110 Voice",
392 .stream_name = "Voice call",
393 .codec_dai_name = "wm5110-aif2",
394 .ops = &tm2_aif2_ops,
395 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
396 SND_SOC_DAIFMT_CBM_CFM,
400 .stream_name = "Bluetooth",
401 .codec_dai_name = "wm5110-aif3",
402 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
403 SND_SOC_DAIFMT_CBM_CFM,
408 static struct snd_soc_card tm2_card = {
409 .owner = THIS_MODULE,
411 .dai_link = tm2_dai_links,
412 .num_links = ARRAY_SIZE(tm2_dai_links),
413 .controls = tm2_controls,
414 .num_controls = ARRAY_SIZE(tm2_controls),
415 .dapm_widgets = tm2_dapm_widgets,
416 .num_dapm_widgets = ARRAY_SIZE(tm2_dapm_widgets),
417 .aux_dev = &tm2_speaker_amp_dev,
420 .late_probe = tm2_late_probe,
421 .set_bias_level = tm2_set_bias_level,
424 static int tm2_probe(struct platform_device *pdev)
426 struct device *dev = &pdev->dev;
427 struct snd_soc_card *card = &tm2_card;
428 struct tm2_machine_priv *priv;
429 struct device_node *cpu_dai_node, *codec_dai_node;
432 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
436 snd_soc_card_set_drvdata(card, priv);
439 priv->gpio_mic_bias = devm_gpiod_get(dev, "mic-bias", GPIOD_OUT_HIGH);
440 if (IS_ERR(priv->gpio_mic_bias)) {
441 dev_err(dev, "Failed to get mic bias gpio\n");
442 return PTR_ERR(priv->gpio_mic_bias);
445 ret = snd_soc_of_parse_card_name(card, "model");
447 dev_err(dev, "Card name is not specified\n");
451 ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing");
453 dev_err(dev, "Audio routing is not specified or invalid\n");
457 card->aux_dev[0].codec_of_node = of_parse_phandle(dev->of_node,
458 "audio-amplifier", 0);
459 if (!card->aux_dev[0].codec_of_node) {
460 dev_err(dev, "audio-amplifier property invalid or missing\n");
464 cpu_dai_node = of_parse_phandle(dev->of_node, "i2s-controller", 0);
466 dev_err(dev, "i2s-controllers property invalid or missing\n");
471 codec_dai_node = of_parse_phandle(dev->of_node, "audio-codec", 0);
472 if (!codec_dai_node) {
473 dev_err(dev, "audio-codec property invalid or missing\n");
475 goto cpu_dai_node_put;
478 for (i = 0; i < card->num_links; i++) {
479 card->dai_link[i].cpu_dai_name = NULL;
480 card->dai_link[i].cpu_name = NULL;
481 card->dai_link[i].platform_name = NULL;
482 card->dai_link[i].codec_of_node = codec_dai_node;
483 card->dai_link[i].cpu_of_node = cpu_dai_node;
484 card->dai_link[i].platform_of_node = cpu_dai_node;
487 ret = devm_snd_soc_register_component(dev, &tm2_component,
488 tm2_ext_dai, ARRAY_SIZE(tm2_ext_dai));
490 dev_err(dev, "Failed to register component: %d\n", ret);
491 goto codec_dai_node_put;
494 ret = devm_snd_soc_register_card(dev, card);
496 dev_err(dev, "Failed to register card: %d\n", ret);
497 goto codec_dai_node_put;
501 of_node_put(codec_dai_node);
503 of_node_put(cpu_dai_node);
505 of_node_put(card->aux_dev[0].codec_of_node);
509 static int tm2_pm_prepare(struct device *dev)
511 struct snd_soc_card *card = dev_get_drvdata(dev);
513 return tm2_stop_sysclk(card);
516 static void tm2_pm_complete(struct device *dev)
518 struct snd_soc_card *card = dev_get_drvdata(dev);
520 tm2_start_sysclk(card);
523 static const struct dev_pm_ops tm2_pm_ops = {
524 .prepare = tm2_pm_prepare,
525 .suspend = snd_soc_suspend,
526 .resume = snd_soc_resume,
527 .complete = tm2_pm_complete,
528 .freeze = snd_soc_suspend,
529 .thaw = snd_soc_resume,
530 .poweroff = snd_soc_poweroff,
531 .restore = snd_soc_resume,
534 static const struct of_device_id tm2_of_match[] = {
535 { .compatible = "samsung,tm2-audio" },
538 MODULE_DEVICE_TABLE(of, tm2_of_match);
540 static struct platform_driver tm2_driver = {
544 .of_match_table = tm2_of_match,
548 module_platform_driver(tm2_driver);
550 MODULE_AUTHOR("Inha Song <ideal.song@samsung.com>");
551 MODULE_DESCRIPTION("ALSA SoC Exynos TM2 Audio Support");
552 MODULE_LICENSE("GPL v2");