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kernel/sound/soc/intel/boards/sof_cs42l42.c

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// SPDX-License-Identifier: GPL-2.0-only
// Copyright(c) 2021 Intel Corporation.
/*
* Intel SOF Machine Driver with Cirrus Logic CS42L42 Codec
* and speaker codec MAX98357A
*/
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.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 <dt-bindings/sound/cs42l42.h>
#include "../../codecs/hdac_hdmi.h"
#include "../common/soc-intel-quirks.h"
#include "hda_dsp_common.h"
#include "sof_maxim_common.h"
#define NAME_SIZE 32
#define SOF_CS42L42_SSP_CODEC(quirk) ((quirk) & GENMASK(2, 0))
#define SOF_CS42L42_SSP_CODEC_MASK (GENMASK(2, 0))
#define SOF_SPEAKER_AMP_PRESENT BIT(3)
#define SOF_CS42L42_SSP_AMP_SHIFT 4
#define SOF_CS42L42_SSP_AMP_MASK (GENMASK(6, 4))
#define SOF_CS42L42_SSP_AMP(quirk) \
(((quirk) << SOF_CS42L42_SSP_AMP_SHIFT) & SOF_CS42L42_SSP_AMP_MASK)
#define SOF_CS42L42_NUM_HDMIDEV_SHIFT 7
#define SOF_CS42L42_NUM_HDMIDEV_MASK (GENMASK(9, 7))
#define SOF_CS42L42_NUM_HDMIDEV(quirk) \
(((quirk) << SOF_CS42L42_NUM_HDMIDEV_SHIFT) & SOF_CS42L42_NUM_HDMIDEV_MASK)
#define SOF_CS42L42_DAILINK_SHIFT 10
#define SOF_CS42L42_DAILINK_MASK (GENMASK(24, 10))
#define SOF_CS42L42_DAILINK(link1, link2, link3, link4, link5) \
((((link1) | ((link2) << 3) | ((link3) << 6) | ((link4) << 9) | ((link5) << 12)) << SOF_CS42L42_DAILINK_SHIFT) & SOF_CS42L42_DAILINK_MASK)
#define SOF_BT_OFFLOAD_PRESENT BIT(25)
#define SOF_CS42L42_SSP_BT_SHIFT 26
#define SOF_CS42L42_SSP_BT_MASK (GENMASK(28, 26))
#define SOF_CS42L42_SSP_BT(quirk) \
(((quirk) << SOF_CS42L42_SSP_BT_SHIFT) & SOF_CS42L42_SSP_BT_MASK)
#define SOF_MAX98357A_SPEAKER_AMP_PRESENT BIT(29)
#define SOF_MAX98360A_SPEAKER_AMP_PRESENT BIT(30)
enum {
LINK_NONE = 0,
LINK_HP = 1,
LINK_SPK = 2,
LINK_DMIC = 3,
LINK_HDMI = 4,
LINK_BT = 5,
};
static struct snd_soc_jack_pin jack_pins[] = {
{
.pin = "Headphone Jack",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
/* Default: SSP2 */
static unsigned long sof_cs42l42_quirk = SOF_CS42L42_SSP_CODEC(2);
struct sof_hdmi_pcm {
struct list_head head;
struct snd_soc_dai *codec_dai;
struct snd_soc_jack hdmi_jack;
int device;
};
struct sof_card_private {
struct snd_soc_jack headset_jack;
struct list_head hdmi_pcm_list;
bool common_hdmi_codec_drv;
};
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 int sof_cs42l42_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 = &ctx->headset_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,
jack,
jack_pins,
ARRAY_SIZE(jack_pins));
if (ret) {
dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
return ret;
}
snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
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_cs42l42_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_cs42l42_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 sysclk for codec */
ret = snd_soc_dai_set_sysclk(codec_dai, 0,
clk_freq, SND_SOC_CLOCK_IN);
if (ret < 0)
dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
return ret;
}
static const struct snd_soc_ops sof_cs42l42_ops = {
.hw_params = sof_cs42l42_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_component *component = NULL;
char jack_name[NAME_SIZE];
struct sof_hdmi_pcm *pcm;
int err;
if (list_empty(&ctx->hdmi_pcm_list))
return -EINVAL;
if (ctx->common_hdmi_codec_drv) {
pcm = list_first_entry(&ctx->hdmi_pcm_list, struct sof_hdmi_pcm,
head);
component = pcm->codec_dai->component;
return hda_dsp_hdmi_build_controls(card, component);
}
list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
component = pcm->codec_dai->component;
snprintf(jack_name, sizeof(jack_name),
"HDMI/DP, pcm=%d Jack", pcm->device);
err = snd_soc_card_jack_new(card, jack_name,
SND_JACK_AVOUT, &pcm->hdmi_jack);
if (err)
return err;
err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
&pcm->hdmi_jack);
if (err < 0)
return err;
}
return hdac_hdmi_jack_port_init(component, &card->dapm);
}
static const struct snd_kcontrol_new sof_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone Jack"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
};
static const struct snd_soc_dapm_widget sof_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Headset Mic", 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, "HP"},
/* other jacks */
{"HS", NULL, "Headset Mic"},
};
static const struct snd_soc_dapm_route dmic_map[] = {
/* digital mics */
{"DMic", NULL, "SoC DMIC"},
};
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 cs42l42 codec */
static struct snd_soc_card sof_audio_card_cs42l42 = {
.name = "cs42l42", /* 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 cs42l42_component[] = {
{
.name = "i2c-10134242:00",
.dai_name = "cs42l42",
}
};
static struct snd_soc_dai_link_component dmic_component[] = {
{
.name = "dmic-codec",
.dai_name = "dmic-hifi",
}
};
static struct snd_soc_dai_link_component dummy_component[] = {
{
.name = "snd-soc-dummy",
.dai_name = "snd-soc-dummy-dai",
}
};
static int create_spk_amp_dai_links(struct device *dev,
struct snd_soc_dai_link *links,
struct snd_soc_dai_link_component *cpus,
int *id, int ssp_amp)
{
int ret = 0;
/* speaker amp */
if (!(sof_cs42l42_quirk & SOF_SPEAKER_AMP_PRESENT))
return 0;
links[*id].name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec",
ssp_amp);
if (!links[*id].name) {
ret = -ENOMEM;
goto devm_err;
}
links[*id].id = *id;
if (sof_cs42l42_quirk & SOF_MAX98357A_SPEAKER_AMP_PRESENT) {
max_98357a_dai_link(&links[*id]);
} else if (sof_cs42l42_quirk & SOF_MAX98360A_SPEAKER_AMP_PRESENT) {
max_98360a_dai_link(&links[*id]);
} else {
dev_err(dev, "no amp defined\n");
ret = -EINVAL;
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) {
ret = -ENOMEM;
goto devm_err;
}
(*id)++;
devm_err:
return ret;
}
static int create_hp_codec_dai_links(struct device *dev,
struct snd_soc_dai_link *links,
struct snd_soc_dai_link_component *cpus,
int *id, int ssp_codec)
{
/* 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 = cs42l42_component;
links[*id].num_codecs = ARRAY_SIZE(cs42l42_component);
links[*id].platforms = platform_component;
links[*id].num_platforms = ARRAY_SIZE(platform_component);
links[*id].init = sof_cs42l42_init;
links[*id].exit = sof_cs42l42_exit;
links[*id].ops = &sof_cs42l42_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)++;
return 0;
devm_err:
return -ENOMEM;
}
static int create_dmic_dai_links(struct device *dev,
struct snd_soc_dai_link *links,
struct snd_soc_dai_link_component *cpus,
int *id, int dmic_be_num)
{
int i;
/* dmic */
if (dmic_be_num <= 0)
return 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)++;
}
return 0;
}
static int create_hdmi_dai_links(struct device *dev,
struct snd_soc_dai_link *links,
struct snd_soc_dai_link_component *cpus,
int *id, int hdmi_num)
{
struct snd_soc_dai_link_component *idisp_components;
int i;
/* HDMI */
if (hdmi_num <= 0)
return 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)++;
}
return 0;
devm_err:
return -ENOMEM;
}
static int create_bt_offload_dai_links(struct device *dev,
struct snd_soc_dai_link *links,
struct snd_soc_dai_link_component *cpus,
int *id, int ssp_bt)
{
/* bt offload */
if (!(sof_cs42l42_quirk & SOF_BT_OFFLOAD_PRESENT))
return 0;
links[*id].name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-BT",
ssp_bt);
if (!links[*id].name)
goto devm_err;
links[*id].id = *id;
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].cpus = &cpus[*id];
links[*id].num_cpus = 1;
links[*id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
"SSP%d Pin",
ssp_bt);
if (!links[*id].cpus->dai_name)
goto devm_err;
(*id)++;
return 0;
devm_err:
return -ENOMEM;
}
static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
int ssp_codec,
int ssp_amp,
int ssp_bt,
int dmic_be_num,
int hdmi_num)
{
struct snd_soc_dai_link_component *cpus;
struct snd_soc_dai_link *links;
int ret, id = 0, link_seq;
links = devm_kcalloc(dev, sof_audio_card_cs42l42.num_links,
sizeof(struct snd_soc_dai_link), GFP_KERNEL);
cpus = devm_kcalloc(dev, sof_audio_card_cs42l42.num_links,
sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
if (!links || !cpus)
goto devm_err;
link_seq = (sof_cs42l42_quirk & SOF_CS42L42_DAILINK_MASK) >> SOF_CS42L42_DAILINK_SHIFT;
while (link_seq) {
int link_type = link_seq & 0x07;
switch (link_type) {
case LINK_HP:
ret = create_hp_codec_dai_links(dev, links, cpus, &id, ssp_codec);
if (ret < 0) {
dev_err(dev, "fail to create hp codec dai links, ret %d\n",
ret);
goto devm_err;
}
break;
case LINK_SPK:
ret = create_spk_amp_dai_links(dev, links, cpus, &id, ssp_amp);
if (ret < 0) {
dev_err(dev, "fail to create spk amp dai links, ret %d\n",
ret);
goto devm_err;
}
break;
case LINK_DMIC:
ret = create_dmic_dai_links(dev, links, cpus, &id, dmic_be_num);
if (ret < 0) {
dev_err(dev, "fail to create dmic dai links, ret %d\n",
ret);
goto devm_err;
}
break;
case LINK_HDMI:
ret = create_hdmi_dai_links(dev, links, cpus, &id, hdmi_num);
if (ret < 0) {
dev_err(dev, "fail to create hdmi dai links, ret %d\n",
ret);
goto devm_err;
}
break;
case LINK_BT:
ret = create_bt_offload_dai_links(dev, links, cpus, &id, ssp_bt);
if (ret < 0) {
dev_err(dev, "fail to create bt offload dai links, ret %d\n",
ret);
goto devm_err;
}
break;
case LINK_NONE:
/* caught here if it's not used as terminator in macro */
default:
dev_err(dev, "invalid link type %d\n", link_type);
goto devm_err;
}
link_seq >>= 3;
}
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_bt, 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_cs42l42_quirk = (unsigned long)pdev->id_entry->driver_data;
mach = pdev->dev.platform_data;
if (soc_intel_is_glk()) {
dmic_be_num = 1;
hdmi_num = 3;
} else {
dmic_be_num = 2;
hdmi_num = (sof_cs42l42_quirk & SOF_CS42L42_NUM_HDMIDEV_MASK) >>
SOF_CS42L42_NUM_HDMIDEV_SHIFT;
/* default number of HDMI DAI's */
if (!hdmi_num)
hdmi_num = 3;
}
dev_dbg(&pdev->dev, "sof_cs42l42_quirk = %lx\n", sof_cs42l42_quirk);
ssp_bt = (sof_cs42l42_quirk & SOF_CS42L42_SSP_BT_MASK) >>
SOF_CS42L42_SSP_BT_SHIFT;
ssp_amp = (sof_cs42l42_quirk & SOF_CS42L42_SSP_AMP_MASK) >>
SOF_CS42L42_SSP_AMP_SHIFT;
ssp_codec = sof_cs42l42_quirk & SOF_CS42L42_SSP_CODEC_MASK;
/* compute number of dai links */
sof_audio_card_cs42l42.num_links = 1 + dmic_be_num + hdmi_num;
if (sof_cs42l42_quirk & SOF_SPEAKER_AMP_PRESENT)
sof_audio_card_cs42l42.num_links++;
if (sof_cs42l42_quirk & SOF_BT_OFFLOAD_PRESENT)
sof_audio_card_cs42l42.num_links++;
dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec, ssp_amp,
ssp_bt, dmic_be_num, hdmi_num);
if (!dai_links)
return -ENOMEM;
sof_audio_card_cs42l42.dai_link = dai_links;
INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
sof_audio_card_cs42l42.dev = &pdev->dev;
/* set platform name for each dailink */
ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_cs42l42,
mach->mach_params.platform);
if (ret)
return ret;
ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv;
snd_soc_card_set_drvdata(&sof_audio_card_cs42l42, ctx);
return devm_snd_soc_register_card(&pdev->dev,
&sof_audio_card_cs42l42);
}
static const struct platform_device_id board_ids[] = {
{
.name = "glk_cs4242_mx98357a",
.driver_data = (kernel_ulong_t)(SOF_CS42L42_SSP_CODEC(2) |
SOF_SPEAKER_AMP_PRESENT |
SOF_MAX98357A_SPEAKER_AMP_PRESENT |
SOF_CS42L42_SSP_AMP(1)) |
SOF_CS42L42_DAILINK(LINK_SPK, LINK_HP, LINK_DMIC, LINK_HDMI, LINK_NONE),
},
{
.name = "jsl_cs4242_mx98360a",
.driver_data = (kernel_ulong_t)(SOF_CS42L42_SSP_CODEC(0) |
SOF_SPEAKER_AMP_PRESENT |
SOF_MAX98360A_SPEAKER_AMP_PRESENT |
SOF_CS42L42_SSP_AMP(1)) |
SOF_CS42L42_DAILINK(LINK_HP, LINK_DMIC, LINK_HDMI, LINK_SPK, LINK_NONE),
},
{
.name = "adl_mx98360a_cs4242",
.driver_data = (kernel_ulong_t)(SOF_CS42L42_SSP_CODEC(0) |
SOF_SPEAKER_AMP_PRESENT |
SOF_MAX98360A_SPEAKER_AMP_PRESENT |
SOF_CS42L42_SSP_AMP(1) |
SOF_CS42L42_NUM_HDMIDEV(4) |
SOF_BT_OFFLOAD_PRESENT |
SOF_CS42L42_SSP_BT(2) |
SOF_CS42L42_DAILINK(LINK_HP, LINK_DMIC, LINK_HDMI, LINK_SPK, LINK_BT)),
},
{ }
};
MODULE_DEVICE_TABLE(platform, board_ids);
static struct platform_driver sof_audio = {
.probe = sof_audio_probe,
.driver = {
.name = "sof_cs42l42",
.pm = &snd_soc_pm_ops,
},
.id_table = board_ids,
};
module_platform_driver(sof_audio)
/* Module information */
MODULE_DESCRIPTION("SOF Audio Machine driver for CS42L42");
MODULE_AUTHOR("Brent Lu <brent.lu@intel.com>");
MODULE_LICENSE("GPL");
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