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- // SPDX-License-Identifier: GPL-2.0+
- // Copyright 2017-2021 NXP
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/slab.h>
- #include <linux/gpio/consumer.h>
- #include <linux/of_device.h>
- #include <linux/i2c.h>
- #include <linux/of_gpio.h>
- #include <linux/clk.h>
- #include <sound/soc.h>
- #include <sound/pcm_params.h>
- #include <sound/pcm.h>
- #include <sound/soc-dapm.h>
- #include <sound/simple_card_utils.h>
- #include "fsl_sai.h"
- #define IMX_CARD_MCLK_22P5792MHZ 22579200
- #define IMX_CARD_MCLK_24P576MHZ 24576000
- enum codec_type {
- CODEC_DUMMY = 0,
- CODEC_AK5558 = 1,
- CODEC_AK4458,
- CODEC_AK4497,
- CODEC_AK5552,
- };
- /*
- * Mapping LRCK fs and frame width, table 3 & 4 in datasheet
- * @rmin: min rate
- * @rmax: max rate
- * @wmin: min frame ratio
- * @wmax: max frame ratio
- */
- struct imx_akcodec_fs_mul {
- unsigned int rmin;
- unsigned int rmax;
- unsigned int wmin;
- unsigned int wmax;
- };
- /*
- * Mapping TDM mode and frame width
- */
- struct imx_akcodec_tdm_fs_mul {
- unsigned int min;
- unsigned int max;
- unsigned int mul;
- };
- /*
- * struct imx_card_plat_data - specific info for codecs
- *
- * @fs_mul: ratio of mclk/fs for normal mode
- * @tdm_fs_mul: ratio of mclk/fs for tdm mode
- * @support_rates: supported sample rate
- * @support_tdm_rates: supported sample rate for tdm mode
- * @support_channels: supported channels
- * @support_tdm_channels: supported channels for tdm mode
- * @num_fs_mul: ARRAY_SIZE of fs_mul
- * @num_tdm_fs_mul: ARRAY_SIZE of tdm_fs_mul
- * @num_rates: ARRAY_SIZE of support_rates
- * @num_tdm_rates: ARRAY_SIZE of support_tdm_rates
- * @num_channels: ARRAY_SIZE of support_channels
- * @num_tdm_channels: ARRAY_SIZE of support_tdm_channels
- * @type: codec type
- */
- struct imx_card_plat_data {
- struct imx_akcodec_fs_mul *fs_mul;
- struct imx_akcodec_tdm_fs_mul *tdm_fs_mul;
- const u32 *support_rates;
- const u32 *support_tdm_rates;
- const u32 *support_channels;
- const u32 *support_tdm_channels;
- unsigned int num_fs_mul;
- unsigned int num_tdm_fs_mul;
- unsigned int num_rates;
- unsigned int num_tdm_rates;
- unsigned int num_channels;
- unsigned int num_tdm_channels;
- unsigned int num_codecs;
- enum codec_type type;
- };
- /*
- * struct dai_link_data - specific info for dai link
- *
- * @slots: slot number
- * @slot_width: slot width value
- * @cpu_sysclk_id: sysclk id for cpu dai
- * @one2one_ratio: true if mclk equal to bclk
- */
- struct dai_link_data {
- unsigned int slots;
- unsigned int slot_width;
- unsigned int cpu_sysclk_id;
- bool one2one_ratio;
- };
- /*
- * struct imx_card_data - platform device data
- *
- * @plat_data: pointer of imx_card_plat_data
- * @dapm_routes: pointer of dapm_routes
- * @link_data: private data for dai link
- * @card: card instance
- * @num_dapm_routes: number of dapm_routes
- * @asrc_rate: asrc rates
- * @asrc_format: asrc format
- */
- struct imx_card_data {
- struct imx_card_plat_data *plat_data;
- struct snd_soc_dapm_route *dapm_routes;
- struct dai_link_data *link_data;
- struct snd_soc_card card;
- int num_dapm_routes;
- u32 asrc_rate;
- snd_pcm_format_t asrc_format;
- };
- static struct imx_akcodec_fs_mul ak4458_fs_mul[] = {
- /* Normal, < 32kHz */
- { .rmin = 8000, .rmax = 24000, .wmin = 256, .wmax = 1024, },
- /* Normal, 32kHz */
- { .rmin = 32000, .rmax = 32000, .wmin = 256, .wmax = 1024, },
- /* Normal */
- { .rmin = 44100, .rmax = 48000, .wmin = 256, .wmax = 768, },
- /* Double */
- { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 512, },
- /* Quad */
- { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 256, },
- /* Oct */
- { .rmin = 352800, .rmax = 384000, .wmin = 32, .wmax = 128, },
- /* Hex */
- { .rmin = 705600, .rmax = 768000, .wmin = 16, .wmax = 64, },
- };
- static struct imx_akcodec_tdm_fs_mul ak4458_tdm_fs_mul[] = {
- /*
- * Table 13 - Audio Interface Format
- * For TDM mode, MCLK should is set to
- * obtained from 2 * slots * slot_width
- */
- { .min = 128, .max = 128, .mul = 256 }, /* TDM128 */
- { .min = 256, .max = 256, .mul = 512 }, /* TDM256 */
- { .min = 512, .max = 512, .mul = 1024 }, /* TDM512 */
- };
- static struct imx_akcodec_fs_mul ak4497_fs_mul[] = {
- /**
- * Table 7 - mapping multiplier and speed mode
- * Tables 8 & 9 - mapping speed mode and LRCK fs
- */
- { .rmin = 8000, .rmax = 32000, .wmin = 256, .wmax = 1024, }, /* Normal, <= 32kHz */
- { .rmin = 44100, .rmax = 48000, .wmin = 256, .wmax = 512, }, /* Normal */
- { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 256, }, /* Double */
- { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 128, }, /* Quad */
- { .rmin = 352800, .rmax = 384000, .wmin = 128, .wmax = 128, }, /* Oct */
- { .rmin = 705600, .rmax = 768000, .wmin = 64, .wmax = 64, }, /* Hex */
- };
- /*
- * Auto MCLK selection based on LRCK for Normal Mode
- * (Table 4 from datasheet)
- */
- static struct imx_akcodec_fs_mul ak5558_fs_mul[] = {
- { .rmin = 8000, .rmax = 32000, .wmin = 512, .wmax = 1024, },
- { .rmin = 44100, .rmax = 48000, .wmin = 512, .wmax = 512, },
- { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 256, },
- { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 128, },
- { .rmin = 352800, .rmax = 384000, .wmin = 64, .wmax = 64, },
- { .rmin = 705600, .rmax = 768000, .wmin = 32, .wmax = 32, },
- };
- /*
- * MCLK and BCLK selection based on TDM mode
- * because of SAI we also add the restriction: MCLK >= 2 * BCLK
- * (Table 9 from datasheet)
- */
- static struct imx_akcodec_tdm_fs_mul ak5558_tdm_fs_mul[] = {
- { .min = 128, .max = 128, .mul = 256 },
- { .min = 256, .max = 256, .mul = 512 },
- { .min = 512, .max = 512, .mul = 1024 },
- };
- static const u32 akcodec_rates[] = {
- 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
- 96000, 176400, 192000, 352800, 384000, 705600, 768000,
- };
- static const u32 akcodec_tdm_rates[] = {
- 8000, 16000, 32000, 48000, 96000,
- };
- static const u32 ak4458_channels[] = {
- 1, 2, 4, 6, 8, 10, 12, 14, 16,
- };
- static const u32 ak4458_tdm_channels[] = {
- 1, 2, 3, 4, 5, 6, 7, 8, 16,
- };
- static const u32 ak5558_channels[] = {
- 1, 2, 4, 6, 8,
- };
- static const u32 ak5558_tdm_channels[] = {
- 1, 2, 3, 4, 5, 6, 7, 8,
- };
- static bool format_is_dsd(struct snd_pcm_hw_params *params)
- {
- snd_pcm_format_t format = params_format(params);
- switch (format) {
- case SNDRV_PCM_FORMAT_DSD_U8:
- case SNDRV_PCM_FORMAT_DSD_U16_LE:
- case SNDRV_PCM_FORMAT_DSD_U16_BE:
- case SNDRV_PCM_FORMAT_DSD_U32_LE:
- case SNDRV_PCM_FORMAT_DSD_U32_BE:
- return true;
- default:
- return false;
- }
- }
- static bool format_is_tdm(struct dai_link_data *link_data)
- {
- if (link_data->slots > 2)
- return true;
- else
- return false;
- }
- static bool codec_is_akcodec(unsigned int type)
- {
- switch (type) {
- case CODEC_AK4458:
- case CODEC_AK4497:
- case CODEC_AK5558:
- case CODEC_AK5552:
- return true;
- default:
- break;
- }
- return false;
- }
- static unsigned long akcodec_get_mclk_rate(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- int slots, int slot_width)
- {
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct imx_card_data *data = snd_soc_card_get_drvdata(rtd->card);
- const struct imx_card_plat_data *plat_data = data->plat_data;
- struct dai_link_data *link_data = &data->link_data[rtd->num];
- unsigned int width = slots * slot_width;
- unsigned int rate = params_rate(params);
- int i;
- if (format_is_tdm(link_data)) {
- for (i = 0; i < plat_data->num_tdm_fs_mul; i++) {
- /* min = max = slots * slots_width */
- if (width != plat_data->tdm_fs_mul[i].min)
- continue;
- return rate * plat_data->tdm_fs_mul[i].mul;
- }
- } else {
- for (i = 0; i < plat_data->num_fs_mul; i++) {
- if (rate >= plat_data->fs_mul[i].rmin &&
- rate <= plat_data->fs_mul[i].rmax) {
- width = max(width, plat_data->fs_mul[i].wmin);
- width = min(width, plat_data->fs_mul[i].wmax);
- /* Adjust SAI bclk:mclk ratio */
- width *= link_data->one2one_ratio ? 1 : 2;
- return rate * width;
- }
- }
- }
- /* Let DAI manage clk frequency by default */
- return 0;
- }
- static int imx_aif_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
- {
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
- struct snd_soc_card *card = rtd->card;
- struct imx_card_data *data = snd_soc_card_get_drvdata(card);
- struct dai_link_data *link_data = &data->link_data[rtd->num];
- struct imx_card_plat_data *plat_data = data->plat_data;
- struct device *dev = card->dev;
- struct snd_soc_dai *codec_dai;
- unsigned long mclk_freq;
- unsigned int fmt = rtd->dai_link->dai_fmt;
- unsigned int slots, slot_width;
- int ret, i;
- slots = link_data->slots;
- slot_width = link_data->slot_width;
- if (!format_is_tdm(link_data)) {
- if (format_is_dsd(params)) {
- slots = 1;
- slot_width = params_width(params);
- fmt = (rtd->dai_link->dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) |
- SND_SOC_DAIFMT_PDM;
- } else {
- slots = 2;
- slot_width = params_physical_width(params);
- fmt = (rtd->dai_link->dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) |
- SND_SOC_DAIFMT_I2S;
- }
- }
- ret = snd_soc_dai_set_fmt(cpu_dai, snd_soc_daifmt_clock_provider_flipped(fmt));
- if (ret && ret != -ENOTSUPP) {
- dev_err(dev, "failed to set cpu dai fmt: %d\n", ret);
- return ret;
- }
- ret = snd_soc_dai_set_tdm_slot(cpu_dai,
- BIT(slots) - 1,
- BIT(slots) - 1,
- slots, slot_width);
- if (ret && ret != -ENOTSUPP) {
- dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
- return ret;
- }
- for_each_rtd_codec_dais(rtd, i, codec_dai) {
- ret = snd_soc_dai_set_fmt(codec_dai, fmt);
- if (ret && ret != -ENOTSUPP) {
- dev_err(dev, "failed to set codec dai[%d] fmt: %d\n", i, ret);
- return ret;
- }
- ret = snd_soc_dai_set_tdm_slot(codec_dai,
- BIT(slots) - 1,
- BIT(slots) - 1,
- slots, slot_width);
- if (ret && ret != -ENOTSUPP) {
- dev_err(dev, "failed to set codec dai[%d] tdm slot: %d\n", i, ret);
- return ret;
- }
- }
- /* Set MCLK freq */
- if (codec_is_akcodec(plat_data->type))
- mclk_freq = akcodec_get_mclk_rate(substream, params, slots, slot_width);
- else
- mclk_freq = params_rate(params) * slots * slot_width;
- if (format_is_dsd(params)) {
- /* Use the maximum freq from DSD512 (512*44100 = 22579200) */
- if (!(params_rate(params) % 11025))
- mclk_freq = IMX_CARD_MCLK_22P5792MHZ;
- else
- mclk_freq = IMX_CARD_MCLK_24P576MHZ;
- }
- ret = snd_soc_dai_set_sysclk(cpu_dai, link_data->cpu_sysclk_id, mclk_freq,
- SND_SOC_CLOCK_OUT);
- if (ret && ret != -ENOTSUPP) {
- dev_err(dev, "failed to set cpui dai mclk1 rate (%lu): %d\n", mclk_freq, ret);
- return ret;
- }
- return 0;
- }
- static int ak5558_hw_rule_rate(struct snd_pcm_hw_params *p, struct snd_pcm_hw_rule *r)
- {
- struct dai_link_data *link_data = r->private;
- struct snd_interval t = { .min = 8000, .max = 8000, };
- unsigned long mclk_freq;
- unsigned int fs;
- int i;
- fs = hw_param_interval(p, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;
- fs *= link_data->slots;
- /* Identify maximum supported rate */
- for (i = 0; i < ARRAY_SIZE(akcodec_rates); i++) {
- mclk_freq = fs * akcodec_rates[i];
- /* Adjust SAI bclk:mclk ratio */
- mclk_freq *= link_data->one2one_ratio ? 1 : 2;
- /* Skip rates for which MCLK is beyond supported value */
- if (mclk_freq > 36864000)
- continue;
- if (t.max < akcodec_rates[i])
- t.max = akcodec_rates[i];
- }
- return snd_interval_refine(hw_param_interval(p, r->var), &t);
- }
- static int imx_aif_startup(struct snd_pcm_substream *substream)
- {
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_card *card = rtd->card;
- struct imx_card_data *data = snd_soc_card_get_drvdata(card);
- struct dai_link_data *link_data = &data->link_data[rtd->num];
- static struct snd_pcm_hw_constraint_list constraint_rates;
- static struct snd_pcm_hw_constraint_list constraint_channels;
- int ret = 0;
- if (format_is_tdm(link_data)) {
- constraint_channels.list = data->plat_data->support_tdm_channels;
- constraint_channels.count = data->plat_data->num_tdm_channels;
- constraint_rates.list = data->plat_data->support_tdm_rates;
- constraint_rates.count = data->plat_data->num_tdm_rates;
- } else {
- constraint_channels.list = data->plat_data->support_channels;
- constraint_channels.count = data->plat_data->num_channels;
- constraint_rates.list = data->plat_data->support_rates;
- constraint_rates.count = data->plat_data->num_rates;
- }
- if (constraint_channels.count) {
- ret = snd_pcm_hw_constraint_list(runtime, 0,
- SNDRV_PCM_HW_PARAM_CHANNELS,
- &constraint_channels);
- if (ret)
- return ret;
- }
- if (constraint_rates.count) {
- ret = snd_pcm_hw_constraint_list(runtime, 0,
- SNDRV_PCM_HW_PARAM_RATE,
- &constraint_rates);
- if (ret)
- return ret;
- }
- if (data->plat_data->type == CODEC_AK5558)
- ret = snd_pcm_hw_rule_add(substream->runtime, 0,
- SNDRV_PCM_HW_PARAM_RATE,
- ak5558_hw_rule_rate, link_data,
- SNDRV_PCM_HW_PARAM_SAMPLE_BITS, -1);
- return ret;
- }
- static const struct snd_soc_ops imx_aif_ops = {
- .hw_params = imx_aif_hw_params,
- .startup = imx_aif_startup,
- };
- static const struct snd_soc_ops imx_aif_ops_be = {
- .hw_params = imx_aif_hw_params,
- };
- static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
- struct snd_pcm_hw_params *params)
- {
- struct snd_soc_card *card = rtd->card;
- struct imx_card_data *data = snd_soc_card_get_drvdata(card);
- struct snd_interval *rate;
- struct snd_mask *mask;
- rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
- rate->max = data->asrc_rate;
- rate->min = data->asrc_rate;
- mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
- snd_mask_none(mask);
- snd_mask_set(mask, (__force unsigned int)data->asrc_format);
- return 0;
- }
- static int imx_card_parse_of(struct imx_card_data *data)
- {
- struct imx_card_plat_data *plat_data = data->plat_data;
- struct snd_soc_card *card = &data->card;
- struct snd_soc_dai_link_component *dlc;
- struct device_node *platform = NULL;
- struct device_node *codec = NULL;
- struct device_node *cpu = NULL;
- struct device_node *np;
- struct device *dev = card->dev;
- struct snd_soc_dai_link *link;
- struct dai_link_data *link_data;
- struct of_phandle_args args;
- int ret, num_links;
- u32 asrc_fmt = 0;
- u32 width;
- ret = snd_soc_of_parse_card_name(card, "model");
- if (ret) {
- dev_err(dev, "Error parsing card name: %d\n", ret);
- return ret;
- }
- /* DAPM routes */
- if (of_property_read_bool(dev->of_node, "audio-routing")) {
- ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
- if (ret)
- return ret;
- }
- /* Populate links */
- num_links = of_get_child_count(dev->of_node);
- /* Allocate the DAI link array */
- card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL);
- if (!card->dai_link)
- return -ENOMEM;
- data->link_data = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL);
- if (!data->link_data)
- return -ENOMEM;
- card->num_links = num_links;
- link = card->dai_link;
- link_data = data->link_data;
- for_each_child_of_node(dev->of_node, np) {
- dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
- if (!dlc) {
- ret = -ENOMEM;
- goto err_put_np;
- }
- link->cpus = &dlc[0];
- link->platforms = &dlc[1];
- link->num_cpus = 1;
- link->num_platforms = 1;
- ret = of_property_read_string(np, "link-name", &link->name);
- if (ret) {
- dev_err(card->dev, "error getting codec dai_link name\n");
- goto err_put_np;
- }
- cpu = of_get_child_by_name(np, "cpu");
- if (!cpu) {
- dev_err(dev, "%s: Can't find cpu DT node\n", link->name);
- ret = -EINVAL;
- goto err;
- }
- ret = of_parse_phandle_with_args(cpu, "sound-dai",
- "#sound-dai-cells", 0, &args);
- if (ret) {
- dev_err(card->dev, "%s: error getting cpu phandle\n", link->name);
- goto err;
- }
- if (of_node_name_eq(args.np, "sai")) {
- /* sai sysclk id */
- link_data->cpu_sysclk_id = FSL_SAI_CLK_MAST1;
- /* sai may support mclk/bclk = 1 */
- if (of_property_read_bool(np, "fsl,mclk-equal-bclk")) {
- link_data->one2one_ratio = true;
- } else {
- int i;
- /*
- * i.MX8MQ don't support one2one ratio, then
- * with ak4497 only 16bit case is supported.
- */
- for (i = 0; i < ARRAY_SIZE(ak4497_fs_mul); i++) {
- if (ak4497_fs_mul[i].rmin == 705600 &&
- ak4497_fs_mul[i].rmax == 768000) {
- ak4497_fs_mul[i].wmin = 32;
- ak4497_fs_mul[i].wmax = 32;
- }
- }
- }
- }
- link->cpus->of_node = args.np;
- link->platforms->of_node = link->cpus->of_node;
- link->id = args.args[0];
- ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name);
- if (ret) {
- dev_err_probe(card->dev, ret,
- "%s: error getting cpu dai name\n", link->name);
- goto err;
- }
- codec = of_get_child_by_name(np, "codec");
- if (codec) {
- ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
- if (ret < 0) {
- dev_err_probe(dev, ret, "%s: codec dai not found\n",
- link->name);
- goto err;
- }
- plat_data->num_codecs = link->num_codecs;
- /* Check the akcodec type */
- if (!strcmp(link->codecs->dai_name, "ak4458-aif"))
- plat_data->type = CODEC_AK4458;
- else if (!strcmp(link->codecs->dai_name, "ak4497-aif"))
- plat_data->type = CODEC_AK4497;
- else if (!strcmp(link->codecs->dai_name, "ak5558-aif"))
- plat_data->type = CODEC_AK5558;
- else if (!strcmp(link->codecs->dai_name, "ak5552-aif"))
- plat_data->type = CODEC_AK5552;
- } else {
- dlc = devm_kzalloc(dev, sizeof(*dlc), GFP_KERNEL);
- if (!dlc) {
- ret = -ENOMEM;
- goto err;
- }
- link->codecs = dlc;
- link->num_codecs = 1;
- link->codecs->dai_name = "snd-soc-dummy-dai";
- link->codecs->name = "snd-soc-dummy";
- }
- if (!strncmp(link->name, "HiFi-ASRC-FE", 12)) {
- /* DPCM frontend */
- link->dynamic = 1;
- link->dpcm_merged_chan = 1;
- ret = of_property_read_u32(args.np, "fsl,asrc-rate", &data->asrc_rate);
- if (ret) {
- dev_err(dev, "failed to get output rate\n");
- ret = -EINVAL;
- goto err;
- }
- ret = of_property_read_u32(args.np, "fsl,asrc-format", &asrc_fmt);
- data->asrc_format = (__force snd_pcm_format_t)asrc_fmt;
- if (ret) {
- /* Fallback to old binding; translate to asrc_format */
- ret = of_property_read_u32(args.np, "fsl,asrc-width", &width);
- if (ret) {
- dev_err(dev,
- "failed to decide output format\n");
- goto err;
- }
- if (width == 24)
- data->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
- else
- data->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
- }
- } else if (!strncmp(link->name, "HiFi-ASRC-BE", 12)) {
- /* DPCM backend */
- link->no_pcm = 1;
- link->platforms->of_node = NULL;
- link->platforms->name = "snd-soc-dummy";
- link->be_hw_params_fixup = be_hw_params_fixup;
- link->ops = &imx_aif_ops_be;
- } else {
- link->ops = &imx_aif_ops;
- }
- if (link->no_pcm || link->dynamic)
- snd_soc_dai_link_set_capabilities(link);
- /* Get dai fmt */
- ret = asoc_simple_parse_daifmt(dev, np, codec,
- NULL, &link->dai_fmt);
- if (ret)
- link->dai_fmt = SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBC_CFC |
- SND_SOC_DAIFMT_I2S;
- /* Get tdm slot */
- snd_soc_of_parse_tdm_slot(np, NULL, NULL,
- &link_data->slots,
- &link_data->slot_width);
- /* default value */
- if (!link_data->slots)
- link_data->slots = 2;
- if (!link_data->slot_width)
- link_data->slot_width = 32;
- link->ignore_pmdown_time = 1;
- link->stream_name = link->name;
- link++;
- link_data++;
- of_node_put(cpu);
- of_node_put(codec);
- of_node_put(platform);
- cpu = NULL;
- codec = NULL;
- platform = NULL;
- }
- return 0;
- err:
- of_node_put(cpu);
- of_node_put(codec);
- of_node_put(platform);
- err_put_np:
- of_node_put(np);
- return ret;
- }
- static int imx_card_probe(struct platform_device *pdev)
- {
- struct snd_soc_dai_link *link_be = NULL, *link;
- struct imx_card_plat_data *plat_data;
- struct imx_card_data *data;
- int ret, i;
- data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
- plat_data = devm_kzalloc(&pdev->dev, sizeof(*plat_data), GFP_KERNEL);
- if (!plat_data)
- return -ENOMEM;
- data->plat_data = plat_data;
- data->card.dev = &pdev->dev;
- dev_set_drvdata(&pdev->dev, &data->card);
- snd_soc_card_set_drvdata(&data->card, data);
- ret = imx_card_parse_of(data);
- if (ret)
- return ret;
- data->num_dapm_routes = plat_data->num_codecs + 1;
- data->dapm_routes = devm_kcalloc(&pdev->dev, data->num_dapm_routes,
- sizeof(struct snd_soc_dapm_route),
- GFP_KERNEL);
- if (!data->dapm_routes)
- return -ENOMEM;
- /* configure the dapm routes */
- switch (plat_data->type) {
- case CODEC_AK4458:
- case CODEC_AK4497:
- if (plat_data->num_codecs == 1) {
- data->dapm_routes[0].sink = "Playback";
- data->dapm_routes[0].source = "CPU-Playback";
- i = 1;
- } else {
- for (i = 0; i < plat_data->num_codecs; i++) {
- data->dapm_routes[i].sink =
- devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s",
- i + 1, "Playback");
- data->dapm_routes[i].source = "CPU-Playback";
- }
- }
- data->dapm_routes[i].sink = "CPU-Playback";
- data->dapm_routes[i].source = "ASRC-Playback";
- break;
- case CODEC_AK5558:
- case CODEC_AK5552:
- if (plat_data->num_codecs == 1) {
- data->dapm_routes[0].sink = "CPU-Capture";
- data->dapm_routes[0].source = "Capture";
- i = 1;
- } else {
- for (i = 0; i < plat_data->num_codecs; i++) {
- data->dapm_routes[i].source =
- devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s",
- i + 1, "Capture");
- data->dapm_routes[i].sink = "CPU-Capture";
- }
- }
- data->dapm_routes[i].sink = "ASRC-Capture";
- data->dapm_routes[i].source = "CPU-Capture";
- break;
- default:
- break;
- }
- /* default platform data for akcodecs */
- if (codec_is_akcodec(plat_data->type)) {
- plat_data->support_rates = akcodec_rates;
- plat_data->num_rates = ARRAY_SIZE(akcodec_rates);
- plat_data->support_tdm_rates = akcodec_tdm_rates;
- plat_data->num_tdm_rates = ARRAY_SIZE(akcodec_tdm_rates);
- switch (plat_data->type) {
- case CODEC_AK4458:
- plat_data->fs_mul = ak4458_fs_mul;
- plat_data->num_fs_mul = ARRAY_SIZE(ak4458_fs_mul);
- plat_data->tdm_fs_mul = ak4458_tdm_fs_mul;
- plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak4458_tdm_fs_mul);
- plat_data->support_channels = ak4458_channels;
- plat_data->num_channels = ARRAY_SIZE(ak4458_channels);
- plat_data->support_tdm_channels = ak4458_tdm_channels;
- plat_data->num_tdm_channels = ARRAY_SIZE(ak4458_tdm_channels);
- break;
- case CODEC_AK4497:
- plat_data->fs_mul = ak4497_fs_mul;
- plat_data->num_fs_mul = ARRAY_SIZE(ak4497_fs_mul);
- plat_data->support_channels = ak4458_channels;
- plat_data->num_channels = ARRAY_SIZE(ak4458_channels);
- break;
- case CODEC_AK5558:
- case CODEC_AK5552:
- plat_data->fs_mul = ak5558_fs_mul;
- plat_data->num_fs_mul = ARRAY_SIZE(ak5558_fs_mul);
- plat_data->tdm_fs_mul = ak5558_tdm_fs_mul;
- plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak5558_tdm_fs_mul);
- plat_data->support_channels = ak5558_channels;
- plat_data->num_channels = ARRAY_SIZE(ak5558_channels);
- plat_data->support_tdm_channels = ak5558_tdm_channels;
- plat_data->num_tdm_channels = ARRAY_SIZE(ak5558_tdm_channels);
- break;
- default:
- break;
- }
- }
- /* with asrc as front end */
- if (data->card.num_links == 3) {
- data->card.dapm_routes = data->dapm_routes;
- data->card.num_dapm_routes = data->num_dapm_routes;
- for_each_card_prelinks(&data->card, i, link) {
- if (link->no_pcm == 1)
- link_be = link;
- }
- for_each_card_prelinks(&data->card, i, link) {
- if (link->dynamic == 1 && link_be) {
- link->dpcm_playback = link_be->dpcm_playback;
- link->dpcm_capture = link_be->dpcm_capture;
- }
- }
- }
- ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
- if (ret)
- return dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n");
- return 0;
- }
- static const struct of_device_id imx_card_dt_ids[] = {
- { .compatible = "fsl,imx-audio-card", },
- { },
- };
- MODULE_DEVICE_TABLE(of, imx_card_dt_ids);
- static struct platform_driver imx_card_driver = {
- .driver = {
- .name = "imx-card",
- .pm = &snd_soc_pm_ops,
- .of_match_table = imx_card_dt_ids,
- },
- .probe = imx_card_probe,
- };
- module_platform_driver(imx_card_driver);
- MODULE_DESCRIPTION("Freescale i.MX ASoC Machine Driver");
- MODULE_LICENSE("GPL v2");
- MODULE_ALIAS("platform:imx-card");
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