soc/fsl/fsl-asoc-card.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 //
0003 // Freescale Generic ASoC Sound Card driver with ASRC
0004 //
0005 // Copyright (C) 2014 Freescale Semiconductor, Inc.
0006 //
0007 // Author: Nicolin Chen <nicoleotsuka@gmail.com>
0008
0009 #include <linux/clk.h>
0010 #include <linux/i2c.h>
0011 #include <linux/module.h>
0012 #include <linux/of_platform.h>
0013 #if IS_ENABLED(CONFIG_SND_AC97_CODEC)
0014 #include <sound/ac97_codec.h>
0015 #endif
0016 #include <sound/pcm_params.h>
0017 #include <sound/soc.h>
0018 #include <sound/jack.h>
0019 #include <sound/simple_card_utils.h>
0020
0021 #include "fsl_esai.h"
0022 #include "fsl_sai.h"
0023 #include "imx-audmux.h"
0024
0025 #include "../codecs/sgtl5000.h"
0026 #include "../codecs/wm8962.h"
0027 #include "../codecs/wm8960.h"
0028 #include "../codecs/wm8994.h"
0029 #include "../codecs/tlv320aic31xx.h"
0030
0031 #define CS427x_SYSCLK_MCLK 0
0032
0033 #define RX 0
0034 #define TX 1
0035
0036 /* Default DAI format without Master and Slave flag */
0037 #define DAI_FMT_BASE (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF)
0038
0039 /**
0040  * struct codec_priv - CODEC private data
0041  * @mclk_freq: Clock rate of MCLK
0042  * @free_freq: Clock rate of MCLK for hw_free()
0043  * @mclk_id: MCLK (or main clock) id for set_sysclk()
0044  * @fll_id: FLL (or secordary clock) id for set_sysclk()
0045  * @pll_id: PLL id for set_pll()
0046  */
0047 struct codec_priv {
0048     unsigned long mclk_freq;
0049     unsigned long free_freq;
0050     u32 mclk_id;
0051     u32 fll_id;
0052     u32 pll_id;
0053 };
0054
0055 /**
0056  * struct cpu_priv - CPU private data
0057  * @sysclk_freq: SYSCLK rates for set_sysclk()
0058  * @sysclk_dir: SYSCLK directions for set_sysclk()
0059  * @sysclk_id: SYSCLK ids for set_sysclk()
0060  * @slot_width: Slot width of each frame
0061  *
0062  * Note: [1] for tx and [0] for rx
0063  */
0064 struct cpu_priv {
0065     unsigned long sysclk_freq[2];
0066     u32 sysclk_dir[2];
0067     u32 sysclk_id[2];
0068     u32 slot_width;
0069 };
0070
0071 /**
0072  * struct fsl_asoc_card_priv - Freescale Generic ASOC card private data
0073  * @dai_link: DAI link structure including normal one and DPCM link
0074  * @hp_jack: Headphone Jack structure
0075  * @mic_jack: Microphone Jack structure
0076  * @pdev: platform device pointer
0077  * @codec_priv: CODEC private data
0078  * @cpu_priv: CPU private data
0079  * @card: ASoC card structure
0080  * @streams: Mask of current active streams
0081  * @sample_rate: Current sample rate
0082  * @sample_format: Current sample format
0083  * @asrc_rate: ASRC sample rate used by Back-Ends
0084  * @asrc_format: ASRC sample format used by Back-Ends
0085  * @dai_fmt: DAI format between CPU and CODEC
0086  * @name: Card name
0087  */
0088
0089 struct fsl_asoc_card_priv {
0090     struct snd_soc_dai_link dai_link[3];
0091     struct asoc_simple_jack hp_jack;
0092     struct asoc_simple_jack mic_jack;
0093     struct platform_device *pdev;
0094     struct codec_priv codec_priv;
0095     struct cpu_priv cpu_priv;
0096     struct snd_soc_card card;
0097     u8 streams;
0098     u32 sample_rate;
0099     snd_pcm_format_t sample_format;
0100     u32 asrc_rate;
0101     snd_pcm_format_t asrc_format;
0102     u32 dai_fmt;
0103     char name[32];
0104 };
0105
0106 /*
0107  * This dapm route map exists for DPCM link only.
0108  * The other routes shall go through Device Tree.
0109  *
0110  * Note: keep all ASRC routes in the second half
0111  *   to drop them easily for non-ASRC cases.
0112  */
0113 static const struct snd_soc_dapm_route audio_map[] = {
0114     /* 1st half -- Normal DAPM routes */
0115     {"Playback",  NULL, "CPU-Playback"},
0116     {"CPU-Capture",  NULL, "Capture"},
0117     /* 2nd half -- ASRC DAPM routes */
0118     {"CPU-Playback",  NULL, "ASRC-Playback"},
0119     {"ASRC-Capture",  NULL, "CPU-Capture"},
0120 };
0121
0122 static const struct snd_soc_dapm_route audio_map_ac97[] = {
0123     /* 1st half -- Normal DAPM routes */
0124     {"Playback",  NULL, "AC97 Playback"},
0125     {"AC97 Capture",  NULL, "Capture"},
0126     /* 2nd half -- ASRC DAPM routes */
0127     {"AC97 Playback",  NULL, "ASRC-Playback"},
0128     {"ASRC-Capture",  NULL, "AC97 Capture"},
0129 };
0130
0131 static const struct snd_soc_dapm_route audio_map_tx[] = {
0132     /* 1st half -- Normal DAPM routes */
0133     {"Playback",  NULL, "CPU-Playback"},
0134     /* 2nd half -- ASRC DAPM routes */
0135     {"CPU-Playback",  NULL, "ASRC-Playback"},
0136 };
0137
0138 static const struct snd_soc_dapm_route audio_map_rx[] = {
0139     /* 1st half -- Normal DAPM routes */
0140     {"CPU-Capture",  NULL, "Capture"},
0141     /* 2nd half -- ASRC DAPM routes */
0142     {"ASRC-Capture",  NULL, "CPU-Capture"},
0143 };
0144
0145 /* Add all possible widgets into here without being redundant */
0146 static const struct snd_soc_dapm_widget fsl_asoc_card_dapm_widgets[] = {
0147     SND_SOC_DAPM_LINE("Line Out Jack", NULL),
0148     SND_SOC_DAPM_LINE("Line In Jack", NULL),
0149     SND_SOC_DAPM_HP("Headphone Jack", NULL),
0150     SND_SOC_DAPM_SPK("Ext Spk", NULL),
0151     SND_SOC_DAPM_MIC("Mic Jack", NULL),
0152     SND_SOC_DAPM_MIC("AMIC", NULL),
0153     SND_SOC_DAPM_MIC("DMIC", NULL),
0154 };
0155
0156 static bool fsl_asoc_card_is_ac97(struct fsl_asoc_card_priv *priv)
0157 {
0158     return priv->dai_fmt == SND_SOC_DAIFMT_AC97;
0159 }
0160
0161 static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream,
0162                    struct snd_pcm_hw_params *params)
0163 {
0164     struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
0165     struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
0166     bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
0167     struct codec_priv *codec_priv = &priv->codec_priv;
0168     struct cpu_priv *cpu_priv = &priv->cpu_priv;
0169     struct device *dev = rtd->card->dev;
0170     unsigned int pll_out;
0171     int ret;
0172
0173     priv->sample_rate = params_rate(params);
0174     priv->sample_format = params_format(params);
0175     priv->streams |= BIT(substream->stream);
0176
0177     if (fsl_asoc_card_is_ac97(priv))
0178         return 0;
0179
0180     /* Specific configurations of DAIs starts from here */
0181     ret = snd_soc_dai_set_sysclk(asoc_rtd_to_cpu(rtd, 0), cpu_priv->sysclk_id[tx],
0182                      cpu_priv->sysclk_freq[tx],
0183                      cpu_priv->sysclk_dir[tx]);
0184     if (ret && ret != -ENOTSUPP) {
0185         dev_err(dev, "failed to set sysclk for cpu dai\n");
0186         goto fail;
0187     }
0188
0189     if (cpu_priv->slot_width) {
0190         ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2,
0191                            cpu_priv->slot_width);
0192         if (ret && ret != -ENOTSUPP) {
0193             dev_err(dev, "failed to set TDM slot for cpu dai\n");
0194             goto fail;
0195         }
0196     }
0197
0198     /* Specific configuration for PLL */
0199     if (codec_priv->pll_id && codec_priv->fll_id) {
0200         if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE)
0201             pll_out = priv->sample_rate * 384;
0202         else
0203             pll_out = priv->sample_rate * 256;
0204
0205         ret = snd_soc_dai_set_pll(asoc_rtd_to_codec(rtd, 0),
0206                       codec_priv->pll_id,
0207                       codec_priv->mclk_id,
0208                       codec_priv->mclk_freq, pll_out);
0209         if (ret) {
0210             dev_err(dev, "failed to start FLL: %d\n", ret);
0211             goto fail;
0212         }
0213
0214         ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0),
0215                          codec_priv->fll_id,
0216                          pll_out, SND_SOC_CLOCK_IN);
0217
0218         if (ret && ret != -ENOTSUPP) {
0219             dev_err(dev, "failed to set SYSCLK: %d\n", ret);
0220             goto fail;
0221         }
0222     }
0223
0224     return 0;
0225
0226 fail:
0227     priv->streams &= ~BIT(substream->stream);
0228     return ret;
0229 }
0230
0231 static int fsl_asoc_card_hw_free(struct snd_pcm_substream *substream)
0232 {
0233     struct snd_soc_pcm_runtime *rtd = substream->private_data;
0234     struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
0235     struct codec_priv *codec_priv = &priv->codec_priv;
0236     struct device *dev = rtd->card->dev;
0237     int ret;
0238
0239     priv->streams &= ~BIT(substream->stream);
0240
0241     if (!priv->streams && codec_priv->pll_id && codec_priv->fll_id) {
0242         /* Force freq to be free_freq to avoid error message in codec */
0243         ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0),
0244                          codec_priv->mclk_id,
0245                          codec_priv->free_freq,
0246                          SND_SOC_CLOCK_IN);
0247         if (ret) {
0248             dev_err(dev, "failed to switch away from FLL: %d\n", ret);
0249             return ret;
0250         }
0251
0252         ret = snd_soc_dai_set_pll(asoc_rtd_to_codec(rtd, 0),
0253                       codec_priv->pll_id, 0, 0, 0);
0254         if (ret && ret != -ENOTSUPP) {
0255             dev_err(dev, "failed to stop FLL: %d\n", ret);
0256             return ret;
0257         }
0258     }
0259
0260     return 0;
0261 }
0262
0263 static const struct snd_soc_ops fsl_asoc_card_ops = {
0264     .hw_params = fsl_asoc_card_hw_params,
0265     .hw_free = fsl_asoc_card_hw_free,
0266 };
0267
0268 static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
0269                   struct snd_pcm_hw_params *params)
0270 {
0271     struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
0272     struct snd_interval *rate;
0273     struct snd_mask *mask;
0274
0275     rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
0276     rate->max = rate->min = priv->asrc_rate;
0277
0278     mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
0279     snd_mask_none(mask);
0280     snd_mask_set_format(mask, priv->asrc_format);
0281
0282     return 0;
0283 }
0284
0285 SND_SOC_DAILINK_DEFS(hifi,
0286     DAILINK_COMP_ARRAY(COMP_EMPTY()),
0287     DAILINK_COMP_ARRAY(COMP_EMPTY()),
0288     DAILINK_COMP_ARRAY(COMP_EMPTY()));
0289
0290 SND_SOC_DAILINK_DEFS(hifi_fe,
0291     DAILINK_COMP_ARRAY(COMP_EMPTY()),
0292     DAILINK_COMP_ARRAY(COMP_DUMMY()),
0293     DAILINK_COMP_ARRAY(COMP_EMPTY()));
0294
0295 SND_SOC_DAILINK_DEFS(hifi_be,
0296     DAILINK_COMP_ARRAY(COMP_EMPTY()),
0297     DAILINK_COMP_ARRAY(COMP_EMPTY()),
0298     DAILINK_COMP_ARRAY(COMP_DUMMY()));
0299
0300 static struct snd_soc_dai_link fsl_asoc_card_dai[] = {
0301     /* Default ASoC DAI Link*/
0302     {
0303         .name = "HiFi",
0304         .stream_name = "HiFi",
0305         .ops = &fsl_asoc_card_ops,
0306         SND_SOC_DAILINK_REG(hifi),
0307     },
0308     /* DPCM Link between Front-End and Back-End (Optional) */
0309     {
0310         .name = "HiFi-ASRC-FE",
0311         .stream_name = "HiFi-ASRC-FE",
0312         .dpcm_playback = 1,
0313         .dpcm_capture = 1,
0314         .dynamic = 1,
0315         SND_SOC_DAILINK_REG(hifi_fe),
0316     },
0317     {
0318         .name = "HiFi-ASRC-BE",
0319         .stream_name = "HiFi-ASRC-BE",
0320         .be_hw_params_fixup = be_hw_params_fixup,
0321         .ops = &fsl_asoc_card_ops,
0322         .dpcm_playback = 1,
0323         .dpcm_capture = 1,
0324         .no_pcm = 1,
0325         SND_SOC_DAILINK_REG(hifi_be),
0326     },
0327 };
0328
0329 static int fsl_asoc_card_audmux_init(struct device_node *np,
0330                      struct fsl_asoc_card_priv *priv)
0331 {
0332     struct device *dev = &priv->pdev->dev;
0333     u32 int_ptcr = 0, ext_ptcr = 0;
0334     int int_port, ext_port;
0335     int ret;
0336
0337     ret = of_property_read_u32(np, "mux-int-port", &int_port);
0338     if (ret) {
0339         dev_err(dev, "mux-int-port missing or invalid\n");
0340         return ret;
0341     }
0342     ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
0343     if (ret) {
0344         dev_err(dev, "mux-ext-port missing or invalid\n");
0345         return ret;
0346     }
0347
0348     /*
0349      * The port numbering in the hardware manual starts at 1, while
0350      * the AUDMUX API expects it starts at 0.
0351      */
0352     int_port--;
0353     ext_port--;
0354
0355     /*
0356      * Use asynchronous mode (6 wires) for all cases except AC97.
0357      * If only 4 wires are needed, just set SSI into
0358      * synchronous mode and enable 4 PADs in IOMUX.
0359      */
0360     switch (priv->dai_fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
0361     case SND_SOC_DAIFMT_CBP_CFP:
0362         int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
0363                IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
0364                IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
0365                IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
0366                IMX_AUDMUX_V2_PTCR_RFSDIR |
0367                IMX_AUDMUX_V2_PTCR_RCLKDIR |
0368                IMX_AUDMUX_V2_PTCR_TFSDIR |
0369                IMX_AUDMUX_V2_PTCR_TCLKDIR;
0370         break;
0371     case SND_SOC_DAIFMT_CBP_CFC:
0372         int_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
0373                IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
0374                IMX_AUDMUX_V2_PTCR_RCLKDIR |
0375                IMX_AUDMUX_V2_PTCR_TCLKDIR;
0376         ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
0377                IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
0378                IMX_AUDMUX_V2_PTCR_RFSDIR |
0379                IMX_AUDMUX_V2_PTCR_TFSDIR;
0380         break;
0381     case SND_SOC_DAIFMT_CBC_CFP:
0382         int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
0383                IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
0384                IMX_AUDMUX_V2_PTCR_RFSDIR |
0385                IMX_AUDMUX_V2_PTCR_TFSDIR;
0386         ext_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
0387                IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
0388                IMX_AUDMUX_V2_PTCR_RCLKDIR |
0389                IMX_AUDMUX_V2_PTCR_TCLKDIR;
0390         break;
0391     case SND_SOC_DAIFMT_CBC_CFC:
0392         ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
0393                IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
0394                IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
0395                IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
0396                IMX_AUDMUX_V2_PTCR_RFSDIR |
0397                IMX_AUDMUX_V2_PTCR_RCLKDIR |
0398                IMX_AUDMUX_V2_PTCR_TFSDIR |
0399                IMX_AUDMUX_V2_PTCR_TCLKDIR;
0400         break;
0401     default:
0402         if (!fsl_asoc_card_is_ac97(priv))
0403             return -EINVAL;
0404     }
0405
0406     if (fsl_asoc_card_is_ac97(priv)) {
0407         int_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
0408                IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
0409                IMX_AUDMUX_V2_PTCR_TCLKDIR;
0410         ext_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
0411                IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
0412                IMX_AUDMUX_V2_PTCR_TFSDIR;
0413     }
0414
0415     /* Asynchronous mode can not be set along with RCLKDIR */
0416     if (!fsl_asoc_card_is_ac97(priv)) {
0417         unsigned int pdcr =
0418                 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port);
0419
0420         ret = imx_audmux_v2_configure_port(int_port, 0,
0421                            pdcr);
0422         if (ret) {
0423             dev_err(dev, "audmux internal port setup failed\n");
0424             return ret;
0425         }
0426     }
0427
0428     ret = imx_audmux_v2_configure_port(int_port, int_ptcr,
0429                        IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
0430     if (ret) {
0431         dev_err(dev, "audmux internal port setup failed\n");
0432         return ret;
0433     }
0434
0435     if (!fsl_asoc_card_is_ac97(priv)) {
0436         unsigned int pdcr =
0437                 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port);
0438
0439         ret = imx_audmux_v2_configure_port(ext_port, 0,
0440                            pdcr);
0441         if (ret) {
0442             dev_err(dev, "audmux external port setup failed\n");
0443             return ret;
0444         }
0445     }
0446
0447     ret = imx_audmux_v2_configure_port(ext_port, ext_ptcr,
0448                        IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
0449     if (ret) {
0450         dev_err(dev, "audmux external port setup failed\n");
0451         return ret;
0452     }
0453
0454     return 0;
0455 }
0456
0457 static int hp_jack_event(struct notifier_block *nb, unsigned long event,
0458              void *data)
0459 {
0460     struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
0461     struct snd_soc_dapm_context *dapm = &jack->card->dapm;
0462
0463     if (event & SND_JACK_HEADPHONE)
0464         /* Disable speaker if headphone is plugged in */
0465         return snd_soc_dapm_disable_pin(dapm, "Ext Spk");
0466     else
0467         return snd_soc_dapm_enable_pin(dapm, "Ext Spk");
0468 }
0469
0470 static struct notifier_block hp_jack_nb = {
0471     .notifier_call = hp_jack_event,
0472 };
0473
0474 static int mic_jack_event(struct notifier_block *nb, unsigned long event,
0475               void *data)
0476 {
0477     struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
0478     struct snd_soc_dapm_context *dapm = &jack->card->dapm;
0479
0480     if (event & SND_JACK_MICROPHONE)
0481         /* Disable dmic if microphone is plugged in */
0482         return snd_soc_dapm_disable_pin(dapm, "DMIC");
0483     else
0484         return snd_soc_dapm_enable_pin(dapm, "DMIC");
0485 }
0486
0487 static struct notifier_block mic_jack_nb = {
0488     .notifier_call = mic_jack_event,
0489 };
0490
0491 static int fsl_asoc_card_late_probe(struct snd_soc_card *card)
0492 {
0493     struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
0494     struct snd_soc_pcm_runtime *rtd = list_first_entry(
0495             &card->rtd_list, struct snd_soc_pcm_runtime, list);
0496     struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
0497     struct codec_priv *codec_priv = &priv->codec_priv;
0498     struct device *dev = card->dev;
0499     int ret;
0500
0501     if (fsl_asoc_card_is_ac97(priv)) {
0502 #if IS_ENABLED(CONFIG_SND_AC97_CODEC)
0503         struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
0504         struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
0505
0506         /*
0507          * Use slots 3/4 for S/PDIF so SSI won't try to enable
0508          * other slots and send some samples there
0509          * due to SLOTREQ bits for S/PDIF received from codec
0510          */
0511         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
0512                      AC97_EA_SPSA_SLOT_MASK, AC97_EA_SPSA_3_4);
0513 #endif
0514
0515         return 0;
0516     }
0517
0518     ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
0519                      codec_priv->mclk_freq, SND_SOC_CLOCK_IN);
0520     if (ret && ret != -ENOTSUPP) {
0521         dev_err(dev, "failed to set sysclk in %s\n", __func__);
0522         return ret;
0523     }
0524
0525     return 0;
0526 }
0527
0528 static int fsl_asoc_card_probe(struct platform_device *pdev)
0529 {
0530     struct device_node *cpu_np, *codec_np, *asrc_np;
0531     struct device_node *np = pdev->dev.of_node;
0532     struct platform_device *asrc_pdev = NULL;
0533     struct device_node *bitclkprovider = NULL;
0534     struct device_node *frameprovider = NULL;
0535     struct platform_device *cpu_pdev;
0536     struct fsl_asoc_card_priv *priv;
0537     struct device *codec_dev = NULL;
0538     const char *codec_dai_name;
0539     const char *codec_dev_name;
0540     u32 asrc_fmt = 0;
0541     u32 width;
0542     int ret;
0543
0544     priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
0545     if (!priv)
0546         return -ENOMEM;
0547
0548     cpu_np = of_parse_phandle(np, "audio-cpu", 0);
0549     /* Give a chance to old DT binding */
0550     if (!cpu_np)
0551         cpu_np = of_parse_phandle(np, "ssi-controller", 0);
0552     if (!cpu_np) {
0553         dev_err(&pdev->dev, "CPU phandle missing or invalid\n");
0554         ret = -EINVAL;
0555         goto fail;
0556     }
0557
0558     cpu_pdev = of_find_device_by_node(cpu_np);
0559     if (!cpu_pdev) {
0560         dev_err(&pdev->dev, "failed to find CPU DAI device\n");
0561         ret = -EINVAL;
0562         goto fail;
0563     }
0564
0565     codec_np = of_parse_phandle(np, "audio-codec", 0);
0566     if (codec_np) {
0567         struct platform_device *codec_pdev;
0568         struct i2c_client *codec_i2c;
0569
0570         codec_i2c = of_find_i2c_device_by_node(codec_np);
0571         if (codec_i2c) {
0572             codec_dev = &codec_i2c->dev;
0573             codec_dev_name = codec_i2c->name;
0574         }
0575         if (!codec_dev) {
0576             codec_pdev = of_find_device_by_node(codec_np);
0577             if (codec_pdev) {
0578                 codec_dev = &codec_pdev->dev;
0579                 codec_dev_name = codec_pdev->name;
0580             }
0581         }
0582     }
0583
0584     asrc_np = of_parse_phandle(np, "audio-asrc", 0);
0585     if (asrc_np)
0586         asrc_pdev = of_find_device_by_node(asrc_np);
0587
0588     /* Get the MCLK rate only, and leave it controlled by CODEC drivers */
0589     if (codec_dev) {
0590         struct clk *codec_clk = clk_get(codec_dev, NULL);
0591
0592         if (!IS_ERR(codec_clk)) {
0593             priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
0594             clk_put(codec_clk);
0595         }
0596     }
0597
0598     /* Default sample rate and format, will be updated in hw_params() */
0599     priv->sample_rate = 44100;
0600     priv->sample_format = SNDRV_PCM_FORMAT_S16_LE;
0601
0602     /* Assign a default DAI format, and allow each card to overwrite it */
0603     priv->dai_fmt = DAI_FMT_BASE;
0604
0605     memcpy(priv->dai_link, fsl_asoc_card_dai,
0606            sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
0607
0608     priv->card.dapm_routes = audio_map;
0609     priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
0610     /* Diversify the card configurations */
0611     if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) {
0612         codec_dai_name = "cs42888";
0613         priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq;
0614         priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq;
0615         priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
0616         priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
0617         priv->cpu_priv.slot_width = 32;
0618         priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
0619     } else if (of_device_is_compatible(np, "fsl,imx-audio-cs427x")) {
0620         codec_dai_name = "cs4271-hifi";
0621         priv->codec_priv.mclk_id = CS427x_SYSCLK_MCLK;
0622         priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
0623     } else if (of_device_is_compatible(np, "fsl,imx-audio-sgtl5000")) {
0624         codec_dai_name = "sgtl5000";
0625         priv->codec_priv.mclk_id = SGTL5000_SYSCLK;
0626         priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
0627     } else if (of_device_is_compatible(np, "fsl,imx-audio-tlv320aic32x4")) {
0628         codec_dai_name = "tlv320aic32x4-hifi";
0629         priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
0630     } else if (of_device_is_compatible(np, "fsl,imx-audio-tlv320aic31xx")) {
0631         codec_dai_name = "tlv320dac31xx-hifi";
0632         priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
0633         priv->dai_link[1].dpcm_capture = 0;
0634         priv->dai_link[2].dpcm_capture = 0;
0635         priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
0636         priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
0637         priv->card.dapm_routes = audio_map_tx;
0638         priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx);
0639     } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8962")) {
0640         codec_dai_name = "wm8962";
0641         priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK;
0642         priv->codec_priv.fll_id = WM8962_SYSCLK_FLL;
0643         priv->codec_priv.pll_id = WM8962_FLL;
0644         priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
0645     } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8960")) {
0646         codec_dai_name = "wm8960-hifi";
0647         priv->codec_priv.fll_id = WM8960_SYSCLK_AUTO;
0648         priv->codec_priv.pll_id = WM8960_SYSCLK_AUTO;
0649         priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
0650     } else if (of_device_is_compatible(np, "fsl,imx-audio-ac97")) {
0651         codec_dai_name = "ac97-hifi";
0652         priv->dai_fmt = SND_SOC_DAIFMT_AC97;
0653         priv->card.dapm_routes = audio_map_ac97;
0654         priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_ac97);
0655     } else if (of_device_is_compatible(np, "fsl,imx-audio-mqs")) {
0656         codec_dai_name = "fsl-mqs-dai";
0657         priv->dai_fmt = SND_SOC_DAIFMT_LEFT_J |
0658                 SND_SOC_DAIFMT_CBC_CFC |
0659                 SND_SOC_DAIFMT_NB_NF;
0660         priv->dai_link[1].dpcm_capture = 0;
0661         priv->dai_link[2].dpcm_capture = 0;
0662         priv->card.dapm_routes = audio_map_tx;
0663         priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx);
0664     } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8524")) {
0665         codec_dai_name = "wm8524-hifi";
0666         priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
0667         priv->dai_link[1].dpcm_capture = 0;
0668         priv->dai_link[2].dpcm_capture = 0;
0669         priv->cpu_priv.slot_width = 32;
0670         priv->card.dapm_routes = audio_map_tx;
0671         priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx);
0672     } else if (of_device_is_compatible(np, "fsl,imx-audio-si476x")) {
0673         codec_dai_name = "si476x-codec";
0674         priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
0675         priv->card.dapm_routes = audio_map_rx;
0676         priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_rx);
0677     } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8958")) {
0678         codec_dai_name = "wm8994-aif1";
0679         priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
0680         priv->codec_priv.mclk_id = WM8994_FLL_SRC_MCLK1;
0681         priv->codec_priv.fll_id = WM8994_SYSCLK_FLL1;
0682         priv->codec_priv.pll_id = WM8994_FLL1;
0683         priv->codec_priv.free_freq = priv->codec_priv.mclk_freq;
0684         priv->card.dapm_routes = NULL;
0685         priv->card.num_dapm_routes = 0;
0686     } else {
0687         dev_err(&pdev->dev, "unknown Device Tree compatible\n");
0688         ret = -EINVAL;
0689         goto asrc_fail;
0690     }
0691
0692     /*
0693      * Allow setting mclk-id from the device-tree node. Otherwise, the
0694      * default value for each card configuration is used.
0695      */
0696     of_property_read_u32(np, "mclk-id", &priv->codec_priv.mclk_id);
0697
0698     /* Format info from DT is optional. */
0699     snd_soc_daifmt_parse_clock_provider_as_phandle(np, NULL, &bitclkprovider, &frameprovider);
0700     if (bitclkprovider || frameprovider) {
0701         unsigned int daifmt = snd_soc_daifmt_parse_format(np, NULL);
0702
0703         if (codec_np == bitclkprovider)
0704             daifmt |= (codec_np == frameprovider) ?
0705                 SND_SOC_DAIFMT_CBP_CFP : SND_SOC_DAIFMT_CBP_CFC;
0706         else
0707             daifmt |= (codec_np == frameprovider) ?
0708                 SND_SOC_DAIFMT_CBC_CFP : SND_SOC_DAIFMT_CBC_CFC;
0709
0710         /* Override dai_fmt with value from DT */
0711         priv->dai_fmt = daifmt;
0712     }
0713
0714     /* Change direction according to format */
0715     if (priv->dai_fmt & SND_SOC_DAIFMT_CBP_CFP) {
0716         priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_IN;
0717         priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_IN;
0718     }
0719
0720     of_node_put(bitclkprovider);
0721     of_node_put(frameprovider);
0722
0723     if (!fsl_asoc_card_is_ac97(priv) && !codec_dev) {
0724         dev_dbg(&pdev->dev, "failed to find codec device\n");
0725         ret = -EPROBE_DEFER;
0726         goto asrc_fail;
0727     }
0728
0729     /* Common settings for corresponding Freescale CPU DAI driver */
0730     if (of_node_name_eq(cpu_np, "ssi")) {
0731         /* Only SSI needs to configure AUDMUX */
0732         ret = fsl_asoc_card_audmux_init(np, priv);
0733         if (ret) {
0734             dev_err(&pdev->dev, "failed to init audmux\n");
0735             goto asrc_fail;
0736         }
0737     } else if (of_node_name_eq(cpu_np, "esai")) {
0738         struct clk *esai_clk = clk_get(&cpu_pdev->dev, "extal");
0739
0740         if (!IS_ERR(esai_clk)) {
0741             priv->cpu_priv.sysclk_freq[TX] = clk_get_rate(esai_clk);
0742             priv->cpu_priv.sysclk_freq[RX] = clk_get_rate(esai_clk);
0743             clk_put(esai_clk);
0744         } else if (PTR_ERR(esai_clk) == -EPROBE_DEFER) {
0745             ret = -EPROBE_DEFER;
0746             goto asrc_fail;
0747         }
0748
0749         priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
0750         priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL;
0751     } else if (of_node_name_eq(cpu_np, "sai")) {
0752         priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1;
0753         priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
0754     }
0755
0756     /* Initialize sound card */
0757     priv->pdev = pdev;
0758     priv->card.dev = &pdev->dev;
0759     priv->card.owner = THIS_MODULE;
0760     ret = snd_soc_of_parse_card_name(&priv->card, "model");
0761     if (ret) {
0762         snprintf(priv->name, sizeof(priv->name), "%s-audio",
0763              fsl_asoc_card_is_ac97(priv) ? "ac97" : codec_dev_name);
0764         priv->card.name = priv->name;
0765     }
0766     priv->card.dai_link = priv->dai_link;
0767     priv->card.late_probe = fsl_asoc_card_late_probe;
0768     priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets;
0769     priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets);
0770
0771     /* Drop the second half of DAPM routes -- ASRC */
0772     if (!asrc_pdev)
0773         priv->card.num_dapm_routes /= 2;
0774
0775     if (of_property_read_bool(np, "audio-routing")) {
0776         ret = snd_soc_of_parse_audio_routing(&priv->card, "audio-routing");
0777         if (ret) {
0778             dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
0779             goto asrc_fail;
0780         }
0781     }
0782
0783     /* Normal DAI Link */
0784     priv->dai_link[0].cpus->of_node = cpu_np;
0785     priv->dai_link[0].codecs->dai_name = codec_dai_name;
0786
0787     if (!fsl_asoc_card_is_ac97(priv))
0788         priv->dai_link[0].codecs->of_node = codec_np;
0789     else {
0790         u32 idx;
0791
0792         ret = of_property_read_u32(cpu_np, "cell-index", &idx);
0793         if (ret) {
0794             dev_err(&pdev->dev,
0795                 "cannot get CPU index property\n");
0796             goto asrc_fail;
0797         }
0798
0799         priv->dai_link[0].codecs->name =
0800                 devm_kasprintf(&pdev->dev, GFP_KERNEL,
0801                            "ac97-codec.%u",
0802                            (unsigned int)idx);
0803         if (!priv->dai_link[0].codecs->name) {
0804             ret = -ENOMEM;
0805             goto asrc_fail;
0806         }
0807     }
0808
0809     priv->dai_link[0].platforms->of_node = cpu_np;
0810     priv->dai_link[0].dai_fmt = priv->dai_fmt;
0811     priv->card.num_links = 1;
0812
0813     if (asrc_pdev) {
0814         /* DPCM DAI Links only if ASRC exsits */
0815         priv->dai_link[1].cpus->of_node = asrc_np;
0816         priv->dai_link[1].platforms->of_node = asrc_np;
0817         priv->dai_link[2].codecs->dai_name = codec_dai_name;
0818         priv->dai_link[2].codecs->of_node = codec_np;
0819         priv->dai_link[2].codecs->name =
0820                 priv->dai_link[0].codecs->name;
0821         priv->dai_link[2].cpus->of_node = cpu_np;
0822         priv->dai_link[2].dai_fmt = priv->dai_fmt;
0823         priv->card.num_links = 3;
0824
0825         ret = of_property_read_u32(asrc_np, "fsl,asrc-rate",
0826                        &priv->asrc_rate);
0827         if (ret) {
0828             dev_err(&pdev->dev, "failed to get output rate\n");
0829             ret = -EINVAL;
0830             goto asrc_fail;
0831         }
0832
0833         ret = of_property_read_u32(asrc_np, "fsl,asrc-format", &asrc_fmt);
0834         priv->asrc_format = (__force snd_pcm_format_t)asrc_fmt;
0835         if (ret) {
0836             /* Fallback to old binding; translate to asrc_format */
0837             ret = of_property_read_u32(asrc_np, "fsl,asrc-width",
0838                            &width);
0839             if (ret) {
0840                 dev_err(&pdev->dev,
0841                     "failed to decide output format\n");
0842                 goto asrc_fail;
0843             }
0844
0845             if (width == 24)
0846                 priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
0847             else
0848                 priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
0849         }
0850     }
0851
0852     /* Finish card registering */
0853     platform_set_drvdata(pdev, priv);
0854     snd_soc_card_set_drvdata(&priv->card, priv);
0855
0856     ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
0857     if (ret) {
0858         dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n");
0859         goto asrc_fail;
0860     }
0861
0862     /*
0863      * Properties "hp-det-gpio" and "mic-det-gpio" are optional, and
0864      * asoc_simple_init_jack uses these properties for creating
0865      * Headphone Jack and Microphone Jack.
0866      *
0867      * The notifier is initialized in snd_soc_card_jack_new(), then
0868      * snd_soc_jack_notifier_register can be called.
0869      */
0870     if (of_property_read_bool(np, "hp-det-gpio")) {
0871         ret = asoc_simple_init_jack(&priv->card, &priv->hp_jack,
0872                         1, NULL, "Headphone Jack");
0873         if (ret)
0874             goto asrc_fail;
0875
0876         snd_soc_jack_notifier_register(&priv->hp_jack.jack, &hp_jack_nb);
0877     }
0878
0879     if (of_property_read_bool(np, "mic-det-gpio")) {
0880         ret = asoc_simple_init_jack(&priv->card, &priv->mic_jack,
0881                         0, NULL, "Mic Jack");
0882         if (ret)
0883             goto asrc_fail;
0884
0885         snd_soc_jack_notifier_register(&priv->mic_jack.jack, &mic_jack_nb);
0886     }
0887
0888 asrc_fail:
0889     of_node_put(asrc_np);
0890     of_node_put(codec_np);
0891     put_device(&cpu_pdev->dev);
0892 fail:
0893     of_node_put(cpu_np);
0894
0895     return ret;
0896 }
0897
0898 static const struct of_device_id fsl_asoc_card_dt_ids[] = {
0899     { .compatible = "fsl,imx-audio-ac97", },
0900     { .compatible = "fsl,imx-audio-cs42888", },
0901     { .compatible = "fsl,imx-audio-cs427x", },
0902     { .compatible = "fsl,imx-audio-tlv320aic32x4", },
0903     { .compatible = "fsl,imx-audio-tlv320aic31xx", },
0904     { .compatible = "fsl,imx-audio-sgtl5000", },
0905     { .compatible = "fsl,imx-audio-wm8962", },
0906     { .compatible = "fsl,imx-audio-wm8960", },
0907     { .compatible = "fsl,imx-audio-mqs", },
0908     { .compatible = "fsl,imx-audio-wm8524", },
0909     { .compatible = "fsl,imx-audio-si476x", },
0910     { .compatible = "fsl,imx-audio-wm8958", },
0911     {}
0912 };
0913 MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids);
0914
0915 static struct platform_driver fsl_asoc_card_driver = {
0916     .probe = fsl_asoc_card_probe,
0917     .driver = {
0918         .name = "fsl-asoc-card",
0919         .pm = &snd_soc_pm_ops,
0920         .of_match_table = fsl_asoc_card_dt_ids,
0921     },
0922 };
0923 module_platform_driver(fsl_asoc_card_driver);
0924
0925 MODULE_DESCRIPTION("Freescale Generic ASoC Sound Card driver with ASRC");
0926 MODULE_AUTHOR("Nicolin Chen <nicoleotsuka@gmail.com>");
0927 MODULE_ALIAS("platform:fsl-asoc-card");
0928 MODULE_LICENSE("GPL");