diff options
Diffstat (limited to 'sound/soc/fsl/imx-wm8960.c')
-rw-r--r-- | sound/soc/fsl/imx-wm8960.c | 699 |
1 files changed, 699 insertions, 0 deletions
diff --git a/sound/soc/fsl/imx-wm8960.c b/sound/soc/fsl/imx-wm8960.c new file mode 100644 index 000000000000..276f10a7a81a --- /dev/null +++ b/sound/soc/fsl/imx-wm8960.c @@ -0,0 +1,699 @@ +/* + * Copyright (C) 2015-2016 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/i2c.h> +#include <linux/of_gpio.h> +#include <linux/slab.h> +#include <linux/gpio.h> +#include <linux/clk.h> +#include <sound/soc.h> +#include <sound/jack.h> +#include <sound/control.h> +#include <sound/pcm_params.h> +#include <sound/soc-dapm.h> +#include <linux/pinctrl/consumer.h> +#include <linux/mfd/syscon.h> +#include "../codecs/wm8960.h" +#include "fsl_sai.h" + +struct imx_wm8960_data { + struct snd_soc_card card; + struct clk *codec_clk; + unsigned int clk_frequency; + bool is_codec_master; + bool is_codec_rpmsg; + bool is_stream_in_use[2]; + bool is_stream_opened[2]; + struct regmap *gpr; + unsigned int hp_det[2]; + u32 asrc_rate; + u32 asrc_format; +}; + +struct imx_priv { + enum of_gpio_flags hp_active_low; + enum of_gpio_flags mic_active_low; + bool is_headset_jack; + struct snd_kcontrol *headphone_kctl; + struct platform_device *pdev; + struct platform_device *asrc_pdev; + struct snd_card *snd_card; +}; + +static struct imx_priv card_priv; + +static struct snd_soc_jack imx_hp_jack; +static struct snd_soc_jack_pin imx_hp_jack_pin = { + .pin = "Headphone Jack", + .mask = SND_JACK_HEADPHONE, +}; +static struct snd_soc_jack_gpio imx_hp_jack_gpio = { + .name = "headphone detect", + .report = SND_JACK_HEADPHONE, + .debounce_time = 250, + .invert = 0, +}; + +static struct snd_soc_jack imx_mic_jack; +static struct snd_soc_jack_pin imx_mic_jack_pins = { + .pin = "Mic Jack", + .mask = SND_JACK_MICROPHONE, +}; +static struct snd_soc_jack_gpio imx_mic_jack_gpio = { + .name = "mic detect", + .report = SND_JACK_MICROPHONE, + .debounce_time = 250, + .invert = 0, +}; + +static int hp_jack_status_check(void *data) +{ + struct imx_priv *priv = &card_priv; + struct snd_soc_jack *jack = data; + struct snd_soc_dapm_context *dapm = &jack->card->dapm; + int hp_status, ret; + + hp_status = gpio_get_value(imx_hp_jack_gpio.gpio); + + if (hp_status != priv->hp_active_low) { + snd_soc_dapm_disable_pin(dapm, "Ext Spk"); + if (priv->is_headset_jack) { + snd_soc_dapm_enable_pin(dapm, "Mic Jack"); + snd_soc_dapm_disable_pin(dapm, "Main MIC"); + } + ret = imx_hp_jack_gpio.report; + snd_kctl_jack_report(priv->snd_card, priv->headphone_kctl, 1); + } else { + snd_soc_dapm_enable_pin(dapm, "Ext Spk"); + if (priv->is_headset_jack) { + snd_soc_dapm_disable_pin(dapm, "Mic Jack"); + snd_soc_dapm_enable_pin(dapm, "Main MIC"); + } + ret = 0; + snd_kctl_jack_report(priv->snd_card, priv->headphone_kctl, 0); + } + + return ret; +} + +static int mic_jack_status_check(void *data) +{ + struct imx_priv *priv = &card_priv; + struct snd_soc_jack *jack = data; + struct snd_soc_dapm_context *dapm = &jack->card->dapm; + int mic_status, ret; + + mic_status = gpio_get_value(imx_mic_jack_gpio.gpio); + + if (mic_status != priv->mic_active_low) { + snd_soc_dapm_disable_pin(dapm, "Main MIC"); + ret = imx_mic_jack_gpio.report; + } else { + snd_soc_dapm_enable_pin(dapm, "Main MIC"); + ret = 0; + } + + return ret; +} + +static const struct snd_soc_dapm_widget imx_wm8960_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_SPK("Ext Spk", NULL), + SND_SOC_DAPM_MIC("Mic Jack", NULL), + SND_SOC_DAPM_MIC("Main MIC", NULL), +}; + +static int imx_wm8960_jack_init(struct snd_soc_card *card, + struct snd_soc_jack *jack, struct snd_soc_jack_pin *pin, + struct snd_soc_jack_gpio *gpio) +{ + int ret; + + ret = snd_soc_card_jack_new(card, pin->pin, pin->mask, jack, pin, 1); + if (ret) { + return ret; + } + + ret = snd_soc_jack_add_gpios(jack, 1, gpio); + if (ret) + return ret; + + return 0; +} + +static ssize_t show_headphone(struct device_driver *dev, char *buf) +{ + struct imx_priv *priv = &card_priv; + int hp_status; + + /* Check if headphone is plugged in */ + hp_status = gpio_get_value(imx_hp_jack_gpio.gpio); + + if (hp_status != priv->hp_active_low) + strcpy(buf, "Headphone\n"); + else + strcpy(buf, "Speaker\n"); + + return strlen(buf); +} + +static ssize_t show_micphone(struct device_driver *dev, char *buf) +{ + struct imx_priv *priv = &card_priv; + int mic_status; + + /* Check if headphone is plugged in */ + mic_status = gpio_get_value(imx_mic_jack_gpio.gpio); + + if (mic_status != priv->mic_active_low) + strcpy(buf, "Mic Jack\n"); + else + strcpy(buf, "Main MIC\n"); + + return strlen(buf); +} +static DRIVER_ATTR(headphone, S_IRUGO | S_IWUSR, show_headphone, NULL); +static DRIVER_ATTR(micphone, S_IRUGO | S_IWUSR, show_micphone, NULL); + +static int imx_hifi_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 *codec_dai = rtd->codec_dai; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_card *card = rtd->card; + struct imx_wm8960_data *data = snd_soc_card_get_drvdata(card); + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + struct device *dev = card->dev; + unsigned int sample_rate = params_rate(params); + unsigned int pll_out; + unsigned int fmt; + int ret = 0; + + data->is_stream_in_use[tx] = true; + + if (data->is_stream_in_use[!tx]) + return 0; + + if (data->is_codec_master) + fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM; + else + fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS; + + /* set cpu DAI configuration */ + ret = snd_soc_dai_set_fmt(cpu_dai, fmt); + if (ret) { + dev_err(dev, "failed to set cpu dai fmt: %d\n", ret); + return ret; + } + /* set codec DAI configuration */ + ret = snd_soc_dai_set_fmt(codec_dai, fmt); + if (ret) { + dev_err(dev, "failed to set codec dai fmt: %d\n", ret); + return ret; + } + + if (!data->is_codec_master) { + ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0, 2, + params_physical_width(params)); + if (ret) { + dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT); + if (ret) { + dev_err(dev, "failed to set cpu sysclk: %d\n", ret); + return ret; + } + return 0; + } else { + ret = snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_IN); + if (ret) { + dev_err(dev, "failed to set cpu sysclk: %d\n", ret); + return ret; + } + } + + data->clk_frequency = clk_get_rate(data->codec_clk); + + /* Set codec pll */ + if (params_width(params) == 24) + pll_out = sample_rate * 768; + else + pll_out = sample_rate * 512; + + ret = snd_soc_dai_set_pll(codec_dai, WM8960_SYSCLK_AUTO, 0, data->clk_frequency, pll_out); + if (ret) + return ret; + ret = snd_soc_dai_set_sysclk(codec_dai, WM8960_SYSCLK_AUTO, pll_out, 0); + + return ret; +} + +static int imx_hifi_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_card *card = rtd->card; + struct imx_wm8960_data *data = snd_soc_card_get_drvdata(card); + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + struct device *dev = card->dev; + int ret; + + data->is_stream_in_use[tx] = false; + + if (data->is_codec_master && !data->is_stream_in_use[!tx]) { + ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_CBS_CFS | SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF); + if (ret) + dev_warn(dev, "failed to set codec dai fmt: %d\n", ret); + } + + return 0; +} + +static u32 imx_wm8960_rates[] = { 8000, 16000, 32000, 48000 }; +static struct snd_pcm_hw_constraint_list imx_wm8960_rate_constraints = { + .count = ARRAY_SIZE(imx_wm8960_rates), + .list = imx_wm8960_rates, +}; + +static int imx_hifi_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_card *card = rtd->card; + struct imx_wm8960_data *data = snd_soc_card_get_drvdata(card); + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + struct fsl_sai *sai = dev_get_drvdata(cpu_dai->dev); + int ret = 0; + + data->is_stream_opened[tx] = true; + if (data->is_stream_opened[tx] != sai->is_stream_opened[tx] || + data->is_stream_opened[!tx] != sai->is_stream_opened[!tx]) { + data->is_stream_opened[tx] = false; + return -EBUSY; + } + + if (!data->is_codec_master) { + ret = snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, &imx_wm8960_rate_constraints); + if (ret) + return ret; + } + + return ret; +} + +static void imx_hifi_shutdown(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + struct imx_wm8960_data *data = snd_soc_card_get_drvdata(card); + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + + data->is_stream_opened[tx] = false; +} + +static struct snd_soc_ops imx_hifi_ops = { + .hw_params = imx_hifi_hw_params, + .hw_free = imx_hifi_hw_free, + .startup = imx_hifi_startup, + .shutdown = imx_hifi_shutdown, +}; + +static int imx_wm8960_late_probe(struct snd_soc_card *card) +{ + struct snd_soc_pcm_runtime *rtd = list_first_entry( + &card->rtd_list, struct snd_soc_pcm_runtime, list); + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_codec *codec = codec_dai->codec; + struct imx_wm8960_data *data = snd_soc_card_get_drvdata(card); + + /* + * codec ADCLRC pin configured as GPIO, DACLRC pin is used as a frame + * clock for ADCs and DACs + */ + snd_soc_update_bits(codec, WM8960_IFACE2, 1<<6, 1<<6); + + /* GPIO1 used as headphone detect output */ + snd_soc_update_bits(codec, WM8960_ADDCTL4, 7<<4, 3<<4); + + /* Enable headphone jack detect */ + snd_soc_update_bits(codec, WM8960_ADDCTL2, 1<<6, 1<<6); + snd_soc_update_bits(codec, WM8960_ADDCTL2, 1<<5, data->hp_det[1]<<5); + snd_soc_update_bits(codec, WM8960_ADDCTL4, 3<<2, data->hp_det[0]<<2); + snd_soc_update_bits(codec, WM8960_ADDCTL1, 3, 3); + + return 0; +} + +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_wm8960_data *data = snd_soc_card_get_drvdata(card); + struct imx_priv *priv = &card_priv; + struct snd_interval *rate; + struct snd_mask *mask; + + if (!priv->asrc_pdev) + return -EINVAL; + + rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + rate->max = rate->min = data->asrc_rate; + + mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); + snd_mask_none(mask); + snd_mask_set(mask, data->asrc_format); + + return 0; +} + +static struct snd_soc_dai_link imx_wm8960_dai[] = { + { + .name = "HiFi", + .stream_name = "HiFi", + .codec_dai_name = "wm8960-hifi", + .ops = &imx_hifi_ops, + }, + { + .name = "HiFi-ASRC-FE", + .stream_name = "HiFi-ASRC-FE", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .dynamic = 1, + .ignore_pmdown_time = 1, + .dpcm_playback = 1, + .dpcm_capture = 1, + .dpcm_merged_chan = 1, + }, + { + .name = "HiFi-ASRC-BE", + .stream_name = "HiFi-ASRC-BE", + .codec_dai_name = "wm8960-hifi", + .platform_name = "snd-soc-dummy", + .no_pcm = 1, + .ignore_pmdown_time = 1, + .dpcm_playback = 1, + .dpcm_capture = 1, + .ops = &imx_hifi_ops, + .be_hw_params_fixup = be_hw_params_fixup, + }, +}; + +static int of_parse_gpr(struct platform_device *pdev, + struct imx_wm8960_data *data) +{ + int ret; + struct of_phandle_args args; + + if (of_device_is_compatible(pdev->dev.of_node, + "fsl,imx7d-evk-wm8960")) + return 0; + + ret = of_parse_phandle_with_fixed_args(pdev->dev.of_node, + "gpr", 3, 0, &args); + if (ret) { + dev_warn(&pdev->dev, "failed to get gpr property\n"); + return ret; + } + + data->gpr = syscon_node_to_regmap(args.np); + if (IS_ERR(data->gpr)) { + ret = PTR_ERR(data->gpr); + dev_err(&pdev->dev, "failed to get gpr regmap\n"); + return ret; + } + + regmap_update_bits(data->gpr, args.args[0], args.args[1], + args.args[2]); + + return 0; +} + +static int imx_wm8960_probe(struct platform_device *pdev) +{ + struct device_node *cpu_np = NULL, *codec_np = NULL; + struct platform_device *cpu_pdev; + struct imx_priv *priv = &card_priv; + struct imx_wm8960_data *data; + struct platform_device *asrc_pdev = NULL; + struct device_node *asrc_np; + u32 width; + int ret; + + priv->pdev = pdev; + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) { + ret = -ENOMEM; + goto fail; + } + + if (of_property_read_bool(pdev->dev.of_node, "codec-rpmsg")) + data->is_codec_rpmsg = true; + + cpu_np = of_parse_phandle(pdev->dev.of_node, "cpu-dai", 0); + if (!cpu_np) { + dev_err(&pdev->dev, "cpu dai phandle missing or invalid\n"); + ret = -EINVAL; + goto fail; + } + + cpu_pdev = of_find_device_by_node(cpu_np); + if (!cpu_pdev) { + dev_err(&pdev->dev, "failed to find SAI platform device\n"); + ret = -EINVAL; + goto fail; + } + + codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0); + if (!codec_np) { + dev_err(&pdev->dev, "phandle missing or invalid\n"); + ret = -EINVAL; + goto fail; + } + + if (data->is_codec_rpmsg) { + struct platform_device *codec_dev; + + codec_dev = of_find_device_by_node(codec_np); + if (!codec_dev || !codec_dev->dev.driver) { + dev_err(&pdev->dev, "failed to find codec platform device\n"); + ret = -EINVAL; + goto fail; + } + + data->codec_clk = devm_clk_get(&codec_dev->dev, "mclk"); + if (IS_ERR(data->codec_clk)) { + ret = PTR_ERR(data->codec_clk); + dev_err(&pdev->dev, "failed to get codec clk: %d\n", ret); + goto fail; + } + } else { + struct i2c_client *codec_dev; + + codec_dev = of_find_i2c_device_by_node(codec_np); + if (!codec_dev || !codec_dev->dev.driver) { + dev_err(&pdev->dev, "failed to find codec platform device\n"); + ret = -EINVAL; + goto fail; + } + + data->codec_clk = devm_clk_get(&codec_dev->dev, "mclk"); + if (IS_ERR(data->codec_clk)) { + ret = PTR_ERR(data->codec_clk); + dev_err(&pdev->dev, "failed to get codec clk: %d\n", ret); + goto fail; + } + } + + if (of_property_read_bool(pdev->dev.of_node, "codec-master")) + data->is_codec_master = true; + + ret = of_parse_gpr(pdev, data); + if (ret) + goto fail; + + of_property_read_u32_array(pdev->dev.of_node, "hp-det", data->hp_det, 2); + + asrc_np = of_parse_phandle(pdev->dev.of_node, "asrc-controller", 0); + if (asrc_np) { + asrc_pdev = of_find_device_by_node(asrc_np); + priv->asrc_pdev = asrc_pdev; + } + + data->card.dai_link = imx_wm8960_dai; + + if (data->is_codec_rpmsg) { + imx_wm8960_dai[0].codec_name = "rpmsg-audio-codec-wm8960"; + imx_wm8960_dai[0].codec_dai_name = "rpmsg-wm8960-hifi"; + } else + imx_wm8960_dai[0].codec_of_node = codec_np; + + imx_wm8960_dai[0].cpu_dai_name = dev_name(&cpu_pdev->dev); + imx_wm8960_dai[0].platform_of_node = cpu_np; + + if (!asrc_pdev) { + data->card.num_links = 1; + } else { + imx_wm8960_dai[1].cpu_of_node = asrc_np; + imx_wm8960_dai[1].platform_of_node = asrc_np; + if (data->is_codec_rpmsg) { + imx_wm8960_dai[2].codec_name = "rpmsg-audio-codec-wm8960"; + imx_wm8960_dai[2].codec_dai_name = "rpmsg-wm8960-hifi"; + } else + imx_wm8960_dai[2].codec_of_node = codec_np; + imx_wm8960_dai[2].cpu_dai_name = dev_name(&cpu_pdev->dev); + data->card.num_links = 3; + + ret = of_property_read_u32(asrc_np, "fsl,asrc-rate", + &data->asrc_rate); + if (ret) { + dev_err(&pdev->dev, "failed to get output rate\n"); + ret = -EINVAL; + goto fail; + } + + ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width); + if (ret) { + dev_err(&pdev->dev, "failed to get output rate\n"); + ret = -EINVAL; + goto fail; + } + + if (width == 24) + data->asrc_format = SNDRV_PCM_FORMAT_S24_LE; + else + data->asrc_format = SNDRV_PCM_FORMAT_S16_LE; + } + + data->card.dev = &pdev->dev; + data->card.owner = THIS_MODULE; + ret = snd_soc_of_parse_card_name(&data->card, "model"); + if (ret) + goto fail; + data->card.dapm_widgets = imx_wm8960_dapm_widgets; + data->card.num_dapm_widgets = ARRAY_SIZE(imx_wm8960_dapm_widgets); + + ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing"); + if (ret) + goto fail; + + data->card.late_probe = imx_wm8960_late_probe; + + platform_set_drvdata(pdev, &data->card); + snd_soc_card_set_drvdata(&data->card, data); + ret = devm_snd_soc_register_card(&pdev->dev, &data->card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); + goto fail; + } + + priv->snd_card = data->card.snd_card; + + imx_hp_jack_gpio.gpio = of_get_named_gpio_flags(pdev->dev.of_node, + "hp-det-gpios", 0, &priv->hp_active_low); + + imx_mic_jack_gpio.gpio = of_get_named_gpio_flags(pdev->dev.of_node, + "mic-det-gpios", 0, &priv->mic_active_low); + + if (gpio_is_valid(imx_hp_jack_gpio.gpio) && + gpio_is_valid(imx_mic_jack_gpio.gpio) && + imx_hp_jack_gpio.gpio == imx_mic_jack_gpio.gpio) + priv->is_headset_jack = true; + + if (gpio_is_valid(imx_hp_jack_gpio.gpio)) { + priv->headphone_kctl = snd_kctl_jack_new("Headphone", NULL); + ret = snd_ctl_add(priv->snd_card, priv->headphone_kctl); + if (ret) + dev_warn(&pdev->dev, "failed to create headphone jack kctl\n"); + + if (priv->is_headset_jack) { + imx_hp_jack_pin.mask |= SND_JACK_MICROPHONE; + imx_hp_jack_gpio.report |= SND_JACK_MICROPHONE; + } + imx_hp_jack_gpio.jack_status_check = hp_jack_status_check; + imx_hp_jack_gpio.data = &imx_hp_jack; + ret = imx_wm8960_jack_init(&data->card, &imx_hp_jack, + &imx_hp_jack_pin, &imx_hp_jack_gpio); + if (ret) { + dev_warn(&pdev->dev, "hp jack init failed (%d)\n", ret); + goto out; + } + + ret = driver_create_file(pdev->dev.driver, &driver_attr_headphone); + if (ret) + dev_warn(&pdev->dev, "create hp attr failed (%d)\n", ret); + } + + if (gpio_is_valid(imx_mic_jack_gpio.gpio)) { + if (!priv->is_headset_jack) { + imx_mic_jack_gpio.jack_status_check = mic_jack_status_check; + imx_mic_jack_gpio.data = &imx_mic_jack; + ret = imx_wm8960_jack_init(&data->card, &imx_mic_jack, + &imx_mic_jack_pins, &imx_mic_jack_gpio); + if (ret) { + dev_warn(&pdev->dev, "mic jack init failed (%d)\n", ret); + goto out; + } + } + ret = driver_create_file(pdev->dev.driver, &driver_attr_micphone); + if (ret) + dev_warn(&pdev->dev, "create mic attr failed (%d)\n", ret); + } + +out: + ret = 0; +fail: + if (cpu_np) + of_node_put(cpu_np); + if (codec_np) + of_node_put(codec_np); + + return ret; +} + +static int imx_wm8960_remove(struct platform_device *pdev) +{ + driver_remove_file(pdev->dev.driver, &driver_attr_micphone); + driver_remove_file(pdev->dev.driver, &driver_attr_headphone); + + return 0; +} + +static const struct of_device_id imx_wm8960_dt_ids[] = { + { .compatible = "fsl,imx-audio-wm8960", }, + { .compatible = "fsl,imx7d-evk-wm8960" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx_wm8960_dt_ids); + +static struct platform_driver imx_wm8960_driver = { + .driver = { + .name = "imx-wm8960", + .pm = &snd_soc_pm_ops, + .of_match_table = imx_wm8960_dt_ids, + }, + .probe = imx_wm8960_probe, + .remove = imx_wm8960_remove, +}; +module_platform_driver(imx_wm8960_driver); + +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_DESCRIPTION("Freescale i.MX WM8960 ASoC machine driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:imx-wm8960"); |