2 * byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform
4 * Copyright (C) 2014 Intel Corp
5 * Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2 of the License.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20 #include <linux/init.h>
21 #include <linux/module.h>
22 #include <linux/platform_device.h>
23 #include <linux/acpi.h>
24 #include <linux/device.h>
25 #include <linux/dmi.h>
26 #include <linux/slab.h>
27 #include <asm/cpu_device_id.h>
28 #include <asm/platform_sst_audio.h>
29 #include <linux/clk.h>
30 #include <sound/pcm.h>
31 #include <sound/pcm_params.h>
32 #include <sound/soc.h>
33 #include <sound/jack.h>
34 #include "../../codecs/rt5640.h"
35 #include "../atom/sst-atom-controls.h"
36 #include "../common/sst-acpi.h"
37 #include "../common/sst-dsp.h"
46 #define BYT_RT5640_MAP(quirk) ((quirk) & 0xff)
47 #define BYT_RT5640_DMIC_EN BIT(16)
48 #define BYT_RT5640_MONO_SPEAKER BIT(17)
49 #define BYT_RT5640_DIFF_MIC BIT(18) /* defaut is single-ended */
50 #define BYT_RT5640_SSP2_AIF2 BIT(19) /* default is using AIF1 */
51 #define BYT_RT5640_SSP0_AIF1 BIT(20)
52 #define BYT_RT5640_SSP0_AIF2 BIT(21)
53 #define BYT_RT5640_MCLK_EN BIT(22)
54 #define BYT_RT5640_MCLK_25MHZ BIT(23)
56 struct byt_rt5640_private {
60 static unsigned long byt_rt5640_quirk = BYT_RT5640_MCLK_EN;
62 static void log_quirks(struct device *dev)
64 if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_DMIC1_MAP)
65 dev_info(dev, "quirk DMIC1_MAP enabled");
66 if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_DMIC2_MAP)
67 dev_info(dev, "quirk DMIC2_MAP enabled");
68 if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_IN1_MAP)
69 dev_info(dev, "quirk IN1_MAP enabled");
70 if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_IN3_MAP)
71 dev_info(dev, "quirk IN3_MAP enabled");
72 if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN)
73 dev_info(dev, "quirk DMIC enabled");
74 if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER)
75 dev_info(dev, "quirk MONO_SPEAKER enabled");
76 if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
77 dev_info(dev, "quirk DIFF_MIC enabled");
78 if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2)
79 dev_info(dev, "quirk SSP2_AIF2 enabled");
80 if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1)
81 dev_info(dev, "quirk SSP0_AIF1 enabled");
82 if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)
83 dev_info(dev, "quirk SSP0_AIF2 enabled");
84 if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN)
85 dev_info(dev, "quirk MCLK_EN enabled");
86 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
87 dev_info(dev, "quirk MCLK_25MHZ enabled");
91 #define BYT_CODEC_DAI1 "rt5640-aif1"
92 #define BYT_CODEC_DAI2 "rt5640-aif2"
94 static inline struct snd_soc_dai *byt_get_codec_dai(struct snd_soc_card *card)
96 struct snd_soc_pcm_runtime *rtd;
98 list_for_each_entry(rtd, &card->rtd_list, list) {
99 if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI1,
100 strlen(BYT_CODEC_DAI1)))
101 return rtd->codec_dai;
102 if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI2,
103 strlen(BYT_CODEC_DAI2)))
104 return rtd->codec_dai;
110 static int platform_clock_control(struct snd_soc_dapm_widget *w,
111 struct snd_kcontrol *k, int event)
113 struct snd_soc_dapm_context *dapm = w->dapm;
114 struct snd_soc_card *card = dapm->card;
115 struct snd_soc_dai *codec_dai;
116 struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
119 codec_dai = byt_get_codec_dai(card);
122 "Codec dai not found; Unable to set platform clock\n");
126 if (SND_SOC_DAPM_EVENT_ON(event)) {
127 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
128 ret = clk_prepare_enable(priv->mclk);
131 "could not configure MCLK state");
135 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
140 * Set codec clock source to internal clock before
141 * turning off the platform clock. Codec needs clock
142 * for Jack detection and button press
144 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK,
148 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk)
149 clk_disable_unprepare(priv->mclk);
154 dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
161 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
162 SND_SOC_DAPM_HP("Headphone", NULL),
163 SND_SOC_DAPM_MIC("Headset Mic", NULL),
164 SND_SOC_DAPM_MIC("Internal Mic", NULL),
165 SND_SOC_DAPM_SPK("Speaker", NULL),
166 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
167 platform_clock_control, SND_SOC_DAPM_PRE_PMU |
168 SND_SOC_DAPM_POST_PMD),
172 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
173 {"Headphone", NULL, "Platform Clock"},
174 {"Headset Mic", NULL, "Platform Clock"},
175 {"Internal Mic", NULL, "Platform Clock"},
176 {"Speaker", NULL, "Platform Clock"},
178 {"Headset Mic", NULL, "MICBIAS1"},
179 {"IN2P", NULL, "Headset Mic"},
180 {"Headphone", NULL, "HPOL"},
181 {"Headphone", NULL, "HPOR"},
184 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
185 {"DMIC1", NULL, "Internal Mic"},
188 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
189 {"DMIC2", NULL, "Internal Mic"},
192 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
193 {"Internal Mic", NULL, "MICBIAS1"},
194 {"IN1P", NULL, "Internal Mic"},
197 static const struct snd_soc_dapm_route byt_rt5640_intmic_in3_map[] = {
198 {"Internal Mic", NULL, "MICBIAS1"},
199 {"IN3P", NULL, "Internal Mic"},
202 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = {
203 {"ssp2 Tx", NULL, "codec_out0"},
204 {"ssp2 Tx", NULL, "codec_out1"},
205 {"codec_in0", NULL, "ssp2 Rx"},
206 {"codec_in1", NULL, "ssp2 Rx"},
208 {"AIF1 Playback", NULL, "ssp2 Tx"},
209 {"ssp2 Rx", NULL, "AIF1 Capture"},
212 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = {
213 {"ssp2 Tx", NULL, "codec_out0"},
214 {"ssp2 Tx", NULL, "codec_out1"},
215 {"codec_in0", NULL, "ssp2 Rx"},
216 {"codec_in1", NULL, "ssp2 Rx"},
218 {"AIF2 Playback", NULL, "ssp2 Tx"},
219 {"ssp2 Rx", NULL, "AIF2 Capture"},
222 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = {
223 {"ssp0 Tx", NULL, "modem_out"},
224 {"modem_in", NULL, "ssp0 Rx"},
226 {"AIF1 Playback", NULL, "ssp0 Tx"},
227 {"ssp0 Rx", NULL, "AIF1 Capture"},
230 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = {
231 {"ssp0 Tx", NULL, "modem_out"},
232 {"modem_in", NULL, "ssp0 Rx"},
234 {"AIF2 Playback", NULL, "ssp0 Tx"},
235 {"ssp0 Rx", NULL, "AIF2 Capture"},
238 static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
239 {"Speaker", NULL, "SPOLP"},
240 {"Speaker", NULL, "SPOLN"},
241 {"Speaker", NULL, "SPORP"},
242 {"Speaker", NULL, "SPORN"},
245 static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
246 {"Speaker", NULL, "SPOLP"},
247 {"Speaker", NULL, "SPOLN"},
250 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
251 SOC_DAPM_PIN_SWITCH("Headphone"),
252 SOC_DAPM_PIN_SWITCH("Headset Mic"),
253 SOC_DAPM_PIN_SWITCH("Internal Mic"),
254 SOC_DAPM_PIN_SWITCH("Speaker"),
257 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
258 struct snd_pcm_hw_params *params)
260 struct snd_soc_pcm_runtime *rtd = substream->private_data;
261 struct snd_soc_dai *codec_dai = rtd->codec_dai;
264 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
265 params_rate(params) * 512,
269 dev_err(rtd->dev, "can't set codec clock %d\n", ret);
273 if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) {
274 /* use bitclock as PLL input */
275 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
276 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
278 /* 2x16 bit slots on SSP0 */
279 ret = snd_soc_dai_set_pll(codec_dai, 0,
281 params_rate(params) * 32,
282 params_rate(params) * 512);
284 /* 2x15 bit slots on SSP2 */
285 ret = snd_soc_dai_set_pll(codec_dai, 0,
287 params_rate(params) * 50,
288 params_rate(params) * 512);
291 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
292 ret = snd_soc_dai_set_pll(codec_dai, 0,
295 params_rate(params) * 512);
297 ret = snd_soc_dai_set_pll(codec_dai, 0,
300 params_rate(params) * 512);
305 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
312 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
314 byt_rt5640_quirk = (unsigned long)id->driver_data;
318 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
320 .callback = byt_rt5640_quirk_cb,
322 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
323 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
325 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
329 .callback = byt_rt5640_quirk_cb,
331 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
332 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
334 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
335 BYT_RT5640_MONO_SPEAKER |
336 BYT_RT5640_DIFF_MIC |
337 BYT_RT5640_SSP0_AIF2 |
342 .callback = byt_rt5640_quirk_cb,
344 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "DellInc."),
345 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
347 .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP |
352 .callback = byt_rt5640_quirk_cb,
354 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
355 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
357 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
361 .callback = byt_rt5640_quirk_cb,
363 DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
364 DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"),
366 .driver_data = (unsigned long *)(BYT_RT5640_DMIC1_MAP |
370 .callback = byt_rt5640_quirk_cb,
372 DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
373 DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
375 .driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP |
377 BYT_RT5640_SSP0_AIF1),
380 .callback = byt_rt5640_quirk_cb,
382 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
383 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
385 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
387 BYT_RT5640_SSP0_AIF1),
391 .callback = byt_rt5640_quirk_cb,
393 DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
395 .driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP |
397 BYT_RT5640_SSP0_AIF1),
403 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
406 struct snd_soc_codec *codec = runtime->codec;
407 struct snd_soc_card *card = runtime->card;
408 const struct snd_soc_dapm_route *custom_map;
409 struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
412 card->dapm.idle_bias_off = true;
414 rt5640_sel_asrc_clk_src(codec,
415 RT5640_DA_STEREO_FILTER |
416 RT5640_DA_MONO_L_FILTER |
417 RT5640_DA_MONO_R_FILTER |
418 RT5640_AD_STEREO_FILTER |
419 RT5640_AD_MONO_L_FILTER |
420 RT5640_AD_MONO_R_FILTER,
421 RT5640_CLK_SEL_ASRC);
423 ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
424 ARRAY_SIZE(byt_rt5640_controls));
426 dev_err(card->dev, "unable to add card controls\n");
430 switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
431 case BYT_RT5640_IN1_MAP:
432 custom_map = byt_rt5640_intmic_in1_map;
433 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
435 case BYT_RT5640_IN3_MAP:
436 custom_map = byt_rt5640_intmic_in3_map;
437 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map);
439 case BYT_RT5640_DMIC2_MAP:
440 custom_map = byt_rt5640_intmic_dmic2_map;
441 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
444 custom_map = byt_rt5640_intmic_dmic1_map;
445 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
448 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
452 if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
453 ret = snd_soc_dapm_add_routes(&card->dapm,
454 byt_rt5640_ssp2_aif2_map,
455 ARRAY_SIZE(byt_rt5640_ssp2_aif2_map));
456 } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
457 ret = snd_soc_dapm_add_routes(&card->dapm,
458 byt_rt5640_ssp0_aif1_map,
459 ARRAY_SIZE(byt_rt5640_ssp0_aif1_map));
460 } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
461 ret = snd_soc_dapm_add_routes(&card->dapm,
462 byt_rt5640_ssp0_aif2_map,
463 ARRAY_SIZE(byt_rt5640_ssp0_aif2_map));
465 ret = snd_soc_dapm_add_routes(&card->dapm,
466 byt_rt5640_ssp2_aif1_map,
467 ARRAY_SIZE(byt_rt5640_ssp2_aif1_map));
472 if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
473 ret = snd_soc_dapm_add_routes(&card->dapm,
474 byt_rt5640_mono_spk_map,
475 ARRAY_SIZE(byt_rt5640_mono_spk_map));
477 ret = snd_soc_dapm_add_routes(&card->dapm,
478 byt_rt5640_stereo_spk_map,
479 ARRAY_SIZE(byt_rt5640_stereo_spk_map));
484 if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
485 snd_soc_update_bits(codec, RT5640_IN1_IN2, RT5640_IN_DF1,
489 if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
490 ret = rt5640_dmic_enable(codec, 0, 0);
495 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
496 snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
498 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
500 * The firmware might enable the clock at
501 * boot (this information may or may not
502 * be reflected in the enable clock register).
503 * To change the rate we must disable the clock
504 * first to cover these cases. Due to common
505 * clock framework restrictions that do not allow
506 * to disable a clock that has not been enabled,
507 * we need to enable the clock first.
509 ret = clk_prepare_enable(priv->mclk);
511 clk_disable_unprepare(priv->mclk);
513 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
514 ret = clk_set_rate(priv->mclk, 25000000);
516 ret = clk_set_rate(priv->mclk, 19200000);
519 dev_err(card->dev, "unable to set MCLK rate\n");
525 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
526 .formats = SNDRV_PCM_FMTBIT_S24_LE,
533 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
534 struct snd_pcm_hw_params *params)
536 struct snd_interval *rate = hw_param_interval(params,
537 SNDRV_PCM_HW_PARAM_RATE);
538 struct snd_interval *channels = hw_param_interval(params,
539 SNDRV_PCM_HW_PARAM_CHANNELS);
542 /* The DSP will covert the FE rate to 48k, stereo */
543 rate->min = rate->max = 48000;
544 channels->min = channels->max = 2;
546 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
547 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
549 /* set SSP0 to 16-bit */
550 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
553 * Default mode for SSP configuration is TDM 4 slot, override config
554 * with explicit setting to I2S 2ch 16-bit. The word length is set with
555 * dai_set_tdm_slot() since there is no other API exposed
557 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
559 SND_SOC_DAIFMT_NB_NF |
560 SND_SOC_DAIFMT_CBS_CFS
563 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
567 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
569 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
575 /* set SSP2 to 24-bit */
576 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
579 * Default mode for SSP configuration is TDM 4 slot, override config
580 * with explicit setting to I2S 2ch 24-bit. The word length is set with
581 * dai_set_tdm_slot() since there is no other API exposed
583 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
585 SND_SOC_DAIFMT_NB_NF |
586 SND_SOC_DAIFMT_CBS_CFS
589 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
593 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
595 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
602 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
604 return snd_pcm_hw_constraint_single(substream->runtime,
605 SNDRV_PCM_HW_PARAM_RATE, 48000);
608 static const struct snd_soc_ops byt_rt5640_aif1_ops = {
609 .startup = byt_rt5640_aif1_startup,
612 static const struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
613 .hw_params = byt_rt5640_aif1_hw_params,
616 static struct snd_soc_dai_link byt_rt5640_dais[] = {
617 [MERR_DPCM_AUDIO] = {
618 .name = "Baytrail Audio Port",
619 .stream_name = "Baytrail Audio",
620 .cpu_dai_name = "media-cpu-dai",
621 .codec_dai_name = "snd-soc-dummy-dai",
622 .codec_name = "snd-soc-dummy",
623 .platform_name = "sst-mfld-platform",
628 .ops = &byt_rt5640_aif1_ops,
630 [MERR_DPCM_DEEP_BUFFER] = {
631 .name = "Deep-Buffer Audio Port",
632 .stream_name = "Deep-Buffer Audio",
633 .cpu_dai_name = "deepbuffer-cpu-dai",
634 .codec_dai_name = "snd-soc-dummy-dai",
635 .codec_name = "snd-soc-dummy",
636 .platform_name = "sst-mfld-platform",
641 .ops = &byt_rt5640_aif1_ops,
643 [MERR_DPCM_COMPR] = {
644 .name = "Baytrail Compressed Port",
645 .stream_name = "Baytrail Compress",
646 .cpu_dai_name = "compress-cpu-dai",
647 .codec_dai_name = "snd-soc-dummy-dai",
648 .codec_name = "snd-soc-dummy",
649 .platform_name = "sst-mfld-platform",
653 .name = "SSP2-Codec",
655 .cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
656 .platform_name = "sst-mfld-platform",
658 .codec_dai_name = "rt5640-aif1", /* changed w/ quirk */
659 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */
660 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
661 | SND_SOC_DAIFMT_CBS_CFS,
662 .be_hw_params_fixup = byt_rt5640_codec_fixup,
666 .init = byt_rt5640_init,
667 .ops = &byt_rt5640_be_ssp2_ops,
672 static struct snd_soc_card byt_rt5640_card = {
673 .name = "bytcr-rt5640",
674 .owner = THIS_MODULE,
675 .dai_link = byt_rt5640_dais,
676 .num_links = ARRAY_SIZE(byt_rt5640_dais),
677 .dapm_widgets = byt_rt5640_widgets,
678 .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
679 .dapm_routes = byt_rt5640_audio_map,
680 .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
681 .fully_routed = true,
684 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
685 static char byt_rt5640_codec_aif_name[12]; /* = "rt5640-aif[1|2]" */
686 static char byt_rt5640_cpu_dai_name[10]; /* = "ssp[0|2]-port" */
688 static bool is_valleyview(void)
690 static const struct x86_cpu_id cpu_ids[] = {
691 { X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
695 if (!x86_match_cpu(cpu_ids))
700 struct acpi_chan_package { /* ACPICA seems to require 64 bit integers */
701 u64 aif_value; /* 1: AIF1, 2: AIF2 */
702 u64 mclock_value; /* usually 25MHz (0x17d7940), ignored */
705 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
708 struct sst_acpi_mach *mach;
709 const char *i2c_name = NULL;
712 struct byt_rt5640_private *priv;
713 bool is_bytcr = false;
715 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC);
719 /* register the soc card */
720 byt_rt5640_card.dev = &pdev->dev;
721 mach = byt_rt5640_card.dev->platform_data;
722 snd_soc_card_set_drvdata(&byt_rt5640_card, priv);
724 /* fix index of codec dai */
725 dai_index = MERR_DPCM_COMPR + 1;
726 for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
727 if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
733 /* fixup codec name based on HID */
734 i2c_name = sst_acpi_find_name_from_hid(mach->id);
735 if (i2c_name != NULL) {
736 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
737 "%s%s", "i2c-", i2c_name);
739 byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
743 * swap SSP0 if bytcr is detected
744 * (will be overridden if DMI quirk is detected)
746 if (is_valleyview()) {
747 struct sst_platform_info *p_info = mach->pdata;
748 const struct sst_res_info *res_info = p_info->res_info;
750 if (res_info->acpi_ipc_irq_index == 0)
756 * Baytrail CR platforms may have CHAN package in BIOS, try
757 * to find relevant routing quirk based as done on Windows
758 * platforms. We have to read the information directly from the
759 * BIOS, at this stage the card is not created and the links
760 * with the codec driver/pdata are non-existent
763 struct acpi_chan_package chan_package;
765 /* format specified: 2 64-bit integers */
766 struct acpi_buffer format = {sizeof("NN"), "NN"};
767 struct acpi_buffer state = {0, NULL};
768 struct sst_acpi_package_context pkg_ctx;
769 bool pkg_found = false;
771 state.length = sizeof(chan_package);
772 state.pointer = &chan_package;
774 pkg_ctx.name = "CHAN";
776 pkg_ctx.format = &format;
777 pkg_ctx.state = &state;
778 pkg_ctx.data_valid = false;
780 pkg_found = sst_acpi_find_package_from_hid(mach->id, &pkg_ctx);
782 if (chan_package.aif_value == 1) {
783 dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
784 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF1;
785 } else if (chan_package.aif_value == 2) {
786 dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
787 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
789 dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
795 /* no BIOS indications, assume SSP0-AIF2 connection */
796 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
799 /* change defaults for Baytrail-CR capture */
800 byt_rt5640_quirk |= BYT_RT5640_IN1_MAP;
801 byt_rt5640_quirk |= BYT_RT5640_DIFF_MIC;
803 byt_rt5640_quirk |= (BYT_RT5640_DMIC1_MAP |
807 /* check quirks before creating card */
808 dmi_check_system(byt_rt5640_quirk_table);
809 log_quirks(&pdev->dev);
811 if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) ||
812 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
814 /* fixup codec aif name */
815 snprintf(byt_rt5640_codec_aif_name,
816 sizeof(byt_rt5640_codec_aif_name),
817 "%s", "rt5640-aif2");
819 byt_rt5640_dais[dai_index].codec_dai_name =
820 byt_rt5640_codec_aif_name;
823 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
824 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
826 /* fixup cpu dai name name */
827 snprintf(byt_rt5640_cpu_dai_name,
828 sizeof(byt_rt5640_cpu_dai_name),
831 byt_rt5640_dais[dai_index].cpu_dai_name =
832 byt_rt5640_cpu_dai_name;
835 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && (is_valleyview())) {
836 priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
837 if (IS_ERR(priv->mclk)) {
838 ret_val = PTR_ERR(priv->mclk);
841 "Failed to get MCLK from pmc_plt_clk_3: %d\n",
845 * Fall back to bit clock usage for -ENOENT (clock not
846 * available likely due to missing dependencies), bail
847 * for all other errors, including -EPROBE_DEFER
849 if (ret_val != -ENOENT)
851 byt_rt5640_quirk &= ~BYT_RT5640_MCLK_EN;
855 ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
858 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
862 platform_set_drvdata(pdev, &byt_rt5640_card);
866 static struct platform_driver snd_byt_rt5640_mc_driver = {
868 .name = "bytcr_rt5640",
870 .probe = snd_byt_rt5640_mc_probe,
873 module_platform_driver(snd_byt_rt5640_mc_driver);
875 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
876 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
877 MODULE_LICENSE("GPL v2");
878 MODULE_ALIAS("platform:bytcr_rt5640");