diff options
Diffstat (limited to 'sound/soc/intel/boards/sof_nau8825.c')
| -rw-r--r-- | sound/soc/intel/boards/sof_nau8825.c | 665 |
1 files changed, 665 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/sof_nau8825.c b/sound/soc/intel/boards/sof_nau8825.c new file mode 100644 index 000000000000..5585c217f78d --- /dev/null +++ b/sound/soc/intel/boards/sof_nau8825.c @@ -0,0 +1,665 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Copyright(c) 2021 Intel Corporation. +// Copyright(c) 2021 Nuvoton Corporation. + +/* + * Intel SOF Machine Driver with Nuvoton headphone codec NAU8825 + * and speaker codec RT1019P MAX98360a or MAX98373 + */ +#include <linux/i2c.h> +#include <linux/input.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/dmi.h> +#include <sound/core.h> +#include <sound/jack.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/sof.h> +#include <sound/soc-acpi.h> +#include "../../codecs/nau8825.h" +#include "../common/soc-intel-quirks.h" +#include "hda_dsp_common.h" +#include "sof_realtek_common.h" +#include "sof_maxim_common.h" + +#define NAME_SIZE 32 + +#define SOF_NAU8825_SSP_CODEC(quirk) ((quirk) & GENMASK(2, 0)) +#define SOF_NAU8825_SSP_CODEC_MASK (GENMASK(2, 0)) +#define SOF_SPEAKER_AMP_PRESENT BIT(3) +#define SOF_NAU8825_SSP_AMP_SHIFT 4 +#define SOF_NAU8825_SSP_AMP_MASK (GENMASK(6, 4)) +#define SOF_NAU8825_SSP_AMP(quirk) \ + (((quirk) << SOF_NAU8825_SSP_AMP_SHIFT) & SOF_NAU8825_SSP_AMP_MASK) +#define SOF_NAU8825_NUM_HDMIDEV_SHIFT 7 +#define SOF_NAU8825_NUM_HDMIDEV_MASK (GENMASK(9, 7)) +#define SOF_NAU8825_NUM_HDMIDEV(quirk) \ + (((quirk) << SOF_NAU8825_NUM_HDMIDEV_SHIFT) & SOF_NAU8825_NUM_HDMIDEV_MASK) + +/* BT audio offload: reserve 3 bits for future */ +#define SOF_BT_OFFLOAD_SSP_SHIFT 10 +#define SOF_BT_OFFLOAD_SSP_MASK (GENMASK(12, 10)) +#define SOF_BT_OFFLOAD_SSP(quirk) \ + (((quirk) << SOF_BT_OFFLOAD_SSP_SHIFT) & SOF_BT_OFFLOAD_SSP_MASK) +#define SOF_SSP_BT_OFFLOAD_PRESENT BIT(13) +#define SOF_RT1019P_SPEAKER_AMP_PRESENT BIT(14) +#define SOF_MAX98373_SPEAKER_AMP_PRESENT BIT(15) +#define SOF_MAX98360A_SPEAKER_AMP_PRESENT BIT(16) + +static unsigned long sof_nau8825_quirk = SOF_NAU8825_SSP_CODEC(0); + +struct sof_hdmi_pcm { + struct list_head head; + struct snd_soc_dai *codec_dai; + int device; +}; + +struct sof_card_private { + struct clk *mclk; + struct snd_soc_jack sof_headset; + struct list_head hdmi_pcm_list; +}; + +static int sof_hdmi_init(struct snd_soc_pcm_runtime *rtd) +{ + struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0); + struct sof_hdmi_pcm *pcm; + + pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); + if (!pcm) + return -ENOMEM; + + /* dai_link id is 1:1 mapped to the PCM device */ + pcm->device = rtd->dai_link->id; + pcm->codec_dai = dai; + + list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); + + return 0; +} + +static struct snd_soc_jack_pin jack_pins[] = { + { + .pin = "Headphone Jack", + .mask = SND_JACK_HEADPHONE, + }, + { + .pin = "Headset Mic", + .mask = SND_JACK_MICROPHONE, + }, +}; + +static int sof_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd) +{ + struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; + + struct snd_soc_jack *jack; + int ret; + + /* + * Headset buttons map to the google Reference headset. + * These can be configured by userspace. + */ + ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack", + SND_JACK_HEADSET | SND_JACK_BTN_0 | + SND_JACK_BTN_1 | SND_JACK_BTN_2 | + SND_JACK_BTN_3, + &ctx->sof_headset, + jack_pins, + ARRAY_SIZE(jack_pins)); + if (ret) { + dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret); + return ret; + } + + jack = &ctx->sof_headset; + + snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); + snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); + snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); + snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); + ret = snd_soc_component_set_jack(component, jack, NULL); + + if (ret) { + dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret); + return ret; + } + + return ret; +}; + +static void sof_nau8825_codec_exit(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; + + snd_soc_component_set_jack(component, NULL, NULL); +} + +static int sof_nau8825_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + int clk_freq, ret; + + clk_freq = sof_dai_get_bclk(rtd); /* BCLK freq */ + + if (clk_freq <= 0) { + dev_err(rtd->dev, "get bclk freq failed: %d\n", clk_freq); + return -EINVAL; + } + + /* Configure clock for codec */ + ret = snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_FLL_BLK, 0, + SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(codec_dai->dev, "can't set BCLK clock %d\n", ret); + return ret; + } + + /* Configure pll for codec */ + ret = snd_soc_dai_set_pll(codec_dai, 0, 0, clk_freq, + params_rate(params) * 256); + if (ret < 0) { + dev_err(codec_dai->dev, "can't set BCLK: %d\n", ret); + return ret; + } + + return ret; +} + +static struct snd_soc_ops sof_nau8825_ops = { + .hw_params = sof_nau8825_hw_params, +}; + +static struct snd_soc_dai_link_component platform_component[] = { + { + /* name might be overridden during probe */ + .name = "0000:00:1f.3" + } +}; + +static int sof_card_late_probe(struct snd_soc_card *card) +{ + struct sof_card_private *ctx = snd_soc_card_get_drvdata(card); + struct snd_soc_dapm_context *dapm = &card->dapm; + struct sof_hdmi_pcm *pcm; + int err; + + if (sof_nau8825_quirk & SOF_MAX98373_SPEAKER_AMP_PRESENT) { + /* Disable Left and Right Spk pin after boot */ + snd_soc_dapm_disable_pin(dapm, "Left Spk"); + snd_soc_dapm_disable_pin(dapm, "Right Spk"); + err = snd_soc_dapm_sync(dapm); + if (err < 0) + return err; + } + + if (list_empty(&ctx->hdmi_pcm_list)) + return -EINVAL; + + pcm = list_first_entry(&ctx->hdmi_pcm_list, struct sof_hdmi_pcm, head); + + return hda_dsp_hdmi_build_controls(card, pcm->codec_dai->component); +} + +static const struct snd_kcontrol_new sof_controls[] = { + SOC_DAPM_PIN_SWITCH("Headphone Jack"), + SOC_DAPM_PIN_SWITCH("Headset Mic"), + SOC_DAPM_PIN_SWITCH("Left Spk"), + SOC_DAPM_PIN_SWITCH("Right Spk"), +}; + +static const struct snd_kcontrol_new speaker_controls[] = { + SOC_DAPM_PIN_SWITCH("Spk"), +}; + +static const struct snd_soc_dapm_widget sof_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_MIC("Headset Mic", NULL), + SND_SOC_DAPM_SPK("Left Spk", NULL), + SND_SOC_DAPM_SPK("Right Spk", NULL), +}; + +static const struct snd_soc_dapm_widget speaker_widgets[] = { + SND_SOC_DAPM_SPK("Spk", NULL), +}; + +static const struct snd_soc_dapm_widget dmic_widgets[] = { + SND_SOC_DAPM_MIC("SoC DMIC", NULL), +}; + +static const struct snd_soc_dapm_route sof_map[] = { + /* HP jack connectors - unknown if we have jack detection */ + { "Headphone Jack", NULL, "HPOL" }, + { "Headphone Jack", NULL, "HPOR" }, + + /* other jacks */ + { "MIC", NULL, "Headset Mic" }, +}; + +static const struct snd_soc_dapm_route speaker_map[] = { + /* speaker */ + { "Spk", NULL, "Speaker" }, +}; + +static const struct snd_soc_dapm_route dmic_map[] = { + /* digital mics */ + {"DMic", NULL, "SoC DMIC"}, +}; + +static int speaker_codec_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_card *card = rtd->card; + int ret; + + ret = snd_soc_dapm_new_controls(&card->dapm, speaker_widgets, + ARRAY_SIZE(speaker_widgets)); + if (ret) { + dev_err(rtd->dev, "unable to add dapm controls, ret %d\n", ret); + /* Don't need to add routes if widget addition failed */ + return ret; + } + + ret = snd_soc_add_card_controls(card, speaker_controls, + ARRAY_SIZE(speaker_controls)); + if (ret) { + dev_err(rtd->dev, "unable to add card controls, ret %d\n", ret); + return ret; + } + + ret = snd_soc_dapm_add_routes(&card->dapm, speaker_map, + ARRAY_SIZE(speaker_map)); + + if (ret) + dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret); + return ret; +} + +static int dmic_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_card *card = rtd->card; + int ret; + + ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets, + ARRAY_SIZE(dmic_widgets)); + if (ret) { + dev_err(card->dev, "DMic widget addition failed: %d\n", ret); + /* Don't need to add routes if widget addition failed */ + return ret; + } + + ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map, + ARRAY_SIZE(dmic_map)); + + if (ret) + dev_err(card->dev, "DMic map addition failed: %d\n", ret); + + return ret; +} + +/* sof audio machine driver for nau8825 codec */ +static struct snd_soc_card sof_audio_card_nau8825 = { + .name = "nau8825", /* the sof- prefix is added by the core */ + .owner = THIS_MODULE, + .controls = sof_controls, + .num_controls = ARRAY_SIZE(sof_controls), + .dapm_widgets = sof_widgets, + .num_dapm_widgets = ARRAY_SIZE(sof_widgets), + .dapm_routes = sof_map, + .num_dapm_routes = ARRAY_SIZE(sof_map), + .fully_routed = true, + .late_probe = sof_card_late_probe, +}; + +static struct snd_soc_dai_link_component nau8825_component[] = { + { + .name = "i2c-10508825:00", + .dai_name = "nau8825-hifi", + } +}; + +static struct snd_soc_dai_link_component dmic_component[] = { + { + .name = "dmic-codec", + .dai_name = "dmic-hifi", + } +}; + +static struct snd_soc_dai_link_component rt1019p_component[] = { + { + .name = "RTL1019:00", + .dai_name = "HiFi", + } +}; + +static struct snd_soc_dai_link_component dummy_component[] = { + { + .name = "snd-soc-dummy", + .dai_name = "snd-soc-dummy-dai", + } +}; + +static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev, + int ssp_codec, + int ssp_amp, + int dmic_be_num, + int hdmi_num) +{ + struct snd_soc_dai_link_component *idisp_components; + struct snd_soc_dai_link_component *cpus; + struct snd_soc_dai_link *links; + int i, id = 0; + + links = devm_kcalloc(dev, sof_audio_card_nau8825.num_links, + sizeof(struct snd_soc_dai_link), GFP_KERNEL); + cpus = devm_kcalloc(dev, sof_audio_card_nau8825.num_links, + sizeof(struct snd_soc_dai_link_component), GFP_KERNEL); + if (!links || !cpus) + goto devm_err; + + /* codec SSP */ + links[id].name = devm_kasprintf(dev, GFP_KERNEL, + "SSP%d-Codec", ssp_codec); + if (!links[id].name) + goto devm_err; + + links[id].id = id; + links[id].codecs = nau8825_component; + links[id].num_codecs = ARRAY_SIZE(nau8825_component); + links[id].platforms = platform_component; + links[id].num_platforms = ARRAY_SIZE(platform_component); + links[id].init = sof_nau8825_codec_init; + links[id].exit = sof_nau8825_codec_exit; + links[id].ops = &sof_nau8825_ops; + links[id].dpcm_playback = 1; + links[id].dpcm_capture = 1; + links[id].no_pcm = 1; + links[id].cpus = &cpus[id]; + links[id].num_cpus = 1; + + links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, + "SSP%d Pin", + ssp_codec); + if (!links[id].cpus->dai_name) + goto devm_err; + + id++; + + /* dmic */ + if (dmic_be_num > 0) { + /* at least we have dmic01 */ + links[id].name = "dmic01"; + links[id].cpus = &cpus[id]; + links[id].cpus->dai_name = "DMIC01 Pin"; + links[id].init = dmic_init; + if (dmic_be_num > 1) { + /* set up 2 BE links at most */ + links[id + 1].name = "dmic16k"; + links[id + 1].cpus = &cpus[id + 1]; + links[id + 1].cpus->dai_name = "DMIC16k Pin"; + dmic_be_num = 2; + } + } + + for (i = 0; i < dmic_be_num; i++) { + links[id].id = id; + links[id].num_cpus = 1; + links[id].codecs = dmic_component; + links[id].num_codecs = ARRAY_SIZE(dmic_component); + links[id].platforms = platform_component; + links[id].num_platforms = ARRAY_SIZE(platform_component); + links[id].ignore_suspend = 1; + links[id].dpcm_capture = 1; + links[id].no_pcm = 1; + id++; + } + + /* HDMI */ + if (hdmi_num > 0) { + idisp_components = devm_kcalloc(dev, + hdmi_num, + sizeof(struct snd_soc_dai_link_component), + GFP_KERNEL); + if (!idisp_components) + goto devm_err; + } + for (i = 1; i <= hdmi_num; i++) { + links[id].name = devm_kasprintf(dev, GFP_KERNEL, + "iDisp%d", i); + if (!links[id].name) + goto devm_err; + + links[id].id = id; + links[id].cpus = &cpus[id]; + links[id].num_cpus = 1; + links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, + "iDisp%d Pin", i); + if (!links[id].cpus->dai_name) + goto devm_err; + + idisp_components[i - 1].name = "ehdaudio0D2"; + idisp_components[i - 1].dai_name = devm_kasprintf(dev, + GFP_KERNEL, + "intel-hdmi-hifi%d", + i); + if (!idisp_components[i - 1].dai_name) + goto devm_err; + + links[id].codecs = &idisp_components[i - 1]; + links[id].num_codecs = 1; + links[id].platforms = platform_component; + links[id].num_platforms = ARRAY_SIZE(platform_component); + links[id].init = sof_hdmi_init; + links[id].dpcm_playback = 1; + links[id].no_pcm = 1; + id++; + } + + /* speaker amp */ + if (sof_nau8825_quirk & SOF_SPEAKER_AMP_PRESENT) { + links[id].name = devm_kasprintf(dev, GFP_KERNEL, + "SSP%d-Codec", ssp_amp); + if (!links[id].name) + goto devm_err; + + links[id].id = id; + if (sof_nau8825_quirk & SOF_RT1019P_SPEAKER_AMP_PRESENT) { + links[id].codecs = rt1019p_component; + links[id].num_codecs = ARRAY_SIZE(rt1019p_component); + links[id].init = speaker_codec_init; + } else if (sof_nau8825_quirk & + SOF_MAX98373_SPEAKER_AMP_PRESENT) { + links[id].codecs = max_98373_components; + links[id].num_codecs = ARRAY_SIZE(max_98373_components); + links[id].init = max_98373_spk_codec_init; + links[id].ops = &max_98373_ops; + /* feedback stream */ + links[id].dpcm_capture = 1; + } else if (sof_nau8825_quirk & + SOF_MAX98360A_SPEAKER_AMP_PRESENT) { + max_98360a_dai_link(&links[id]); + } else { + goto devm_err; + } + + links[id].platforms = platform_component; + links[id].num_platforms = ARRAY_SIZE(platform_component); + links[id].dpcm_playback = 1; + links[id].no_pcm = 1; + links[id].cpus = &cpus[id]; + links[id].num_cpus = 1; + links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, + "SSP%d Pin", + ssp_amp); + if (!links[id].cpus->dai_name) + goto devm_err; + id++; + } + + /* BT audio offload */ + if (sof_nau8825_quirk & SOF_SSP_BT_OFFLOAD_PRESENT) { + int port = (sof_nau8825_quirk & SOF_BT_OFFLOAD_SSP_MASK) >> + SOF_BT_OFFLOAD_SSP_SHIFT; + + links[id].id = id; + links[id].cpus = &cpus[id]; + links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, + "SSP%d Pin", port); + if (!links[id].cpus->dai_name) + goto devm_err; + links[id].name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-BT", port); + if (!links[id].name) + goto devm_err; + links[id].codecs = dummy_component; + links[id].num_codecs = ARRAY_SIZE(dummy_component); + links[id].platforms = platform_component; + links[id].num_platforms = ARRAY_SIZE(platform_component); + links[id].dpcm_playback = 1; + links[id].dpcm_capture = 1; + links[id].no_pcm = 1; + links[id].num_cpus = 1; + } + + return links; +devm_err: + return NULL; +} + +static int sof_audio_probe(struct platform_device *pdev) +{ + struct snd_soc_dai_link *dai_links; + struct snd_soc_acpi_mach *mach; + struct sof_card_private *ctx; + int dmic_be_num, hdmi_num; + int ret, ssp_amp, ssp_codec; + + ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + if (pdev->id_entry && pdev->id_entry->driver_data) + sof_nau8825_quirk = (unsigned long)pdev->id_entry->driver_data; + + mach = pdev->dev.platform_data; + + /* A speaker amp might not be present when the quirk claims one is. + * Detect this via whether the machine driver match includes quirk_data. + */ + if ((sof_nau8825_quirk & SOF_SPEAKER_AMP_PRESENT) && !mach->quirk_data) + sof_nau8825_quirk &= ~SOF_SPEAKER_AMP_PRESENT; + + dev_dbg(&pdev->dev, "sof_nau8825_quirk = %lx\n", sof_nau8825_quirk); + + /* default number of DMIC DAI's */ + dmic_be_num = 2; + hdmi_num = (sof_nau8825_quirk & SOF_NAU8825_NUM_HDMIDEV_MASK) >> + SOF_NAU8825_NUM_HDMIDEV_SHIFT; + /* default number of HDMI DAI's */ + if (!hdmi_num) + hdmi_num = 3; + + ssp_amp = (sof_nau8825_quirk & SOF_NAU8825_SSP_AMP_MASK) >> + SOF_NAU8825_SSP_AMP_SHIFT; + + ssp_codec = sof_nau8825_quirk & SOF_NAU8825_SSP_CODEC_MASK; + + /* compute number of dai links */ + sof_audio_card_nau8825.num_links = 1 + dmic_be_num + hdmi_num; + + if (sof_nau8825_quirk & SOF_SPEAKER_AMP_PRESENT) + sof_audio_card_nau8825.num_links++; + + if (sof_nau8825_quirk & SOF_MAX98373_SPEAKER_AMP_PRESENT) + max_98373_set_codec_conf(&sof_audio_card_nau8825); + + if (sof_nau8825_quirk & SOF_SSP_BT_OFFLOAD_PRESENT) + sof_audio_card_nau8825.num_links++; + + dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec, ssp_amp, + dmic_be_num, hdmi_num); + if (!dai_links) + return -ENOMEM; + + sof_audio_card_nau8825.dai_link = dai_links; + + INIT_LIST_HEAD(&ctx->hdmi_pcm_list); + + sof_audio_card_nau8825.dev = &pdev->dev; + + /* set platform name for each dailink */ + ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_nau8825, + mach->mach_params.platform); + if (ret) + return ret; + + snd_soc_card_set_drvdata(&sof_audio_card_nau8825, ctx); + + return devm_snd_soc_register_card(&pdev->dev, + &sof_audio_card_nau8825); +} + +static const struct platform_device_id board_ids[] = { + { + .name = "sof_nau8825", + .driver_data = (kernel_ulong_t)(SOF_NAU8825_SSP_CODEC(0) | + SOF_NAU8825_NUM_HDMIDEV(4) | + SOF_BT_OFFLOAD_SSP(2) | + SOF_SSP_BT_OFFLOAD_PRESENT), + + }, + { + .name = "adl_rt1019p_nau8825", + .driver_data = (kernel_ulong_t)(SOF_NAU8825_SSP_CODEC(0) | + SOF_SPEAKER_AMP_PRESENT | + SOF_RT1019P_SPEAKER_AMP_PRESENT | + SOF_NAU8825_SSP_AMP(2) | + SOF_NAU8825_NUM_HDMIDEV(4)), + }, + { + .name = "adl_max98373_nau8825", + .driver_data = (kernel_ulong_t)(SOF_NAU8825_SSP_CODEC(0) | + SOF_SPEAKER_AMP_PRESENT | + SOF_MAX98373_SPEAKER_AMP_PRESENT | + SOF_NAU8825_SSP_AMP(1) | + SOF_NAU8825_NUM_HDMIDEV(4) | + SOF_BT_OFFLOAD_SSP(2) | + SOF_SSP_BT_OFFLOAD_PRESENT), + }, + { + /* The limitation of length of char array, shorten the name */ + .name = "adl_mx98360a_nau8825", + .driver_data = (kernel_ulong_t)(SOF_NAU8825_SSP_CODEC(0) | + SOF_SPEAKER_AMP_PRESENT | + SOF_MAX98360A_SPEAKER_AMP_PRESENT | + SOF_NAU8825_SSP_AMP(1) | + SOF_NAU8825_NUM_HDMIDEV(4) | + SOF_BT_OFFLOAD_SSP(2) | + SOF_SSP_BT_OFFLOAD_PRESENT), + + }, + { } +}; +MODULE_DEVICE_TABLE(platform, board_ids); + +static struct platform_driver sof_audio = { + .probe = sof_audio_probe, + .driver = { + .name = "sof_nau8825", + .pm = &snd_soc_pm_ops, + }, + .id_table = board_ids, +}; +module_platform_driver(sof_audio) + +/* Module information */ +MODULE_DESCRIPTION("SOF Audio Machine driver for NAU8825"); +MODULE_AUTHOR("David Lin <ctlin0@nuvoton.com>"); +MODULE_AUTHOR("Mac Chiang <mac.chiang@intel.com>"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON); +MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_MAXIM_COMMON); |