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linux-zen-desktop/sound/soc/intel/boards/bytcht_es8316.c

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// SPDX-License-Identifier: GPL-2.0-only
/*
* bytcht_es8316.c - ASoc Machine driver for Intel Baytrail/Cherrytrail
* platforms with Everest ES8316 SoC
*
* Copyright (C) 2017 Endless Mobile, Inc.
* Authors: David Yang <yangxiaohua@everest-semi.com>,
* Daniel Drake <drake@endlessm.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#include <linux/acpi.h>
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/dmi.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include "../atom/sst-atom-controls.h"
#include "../common/soc-intel-quirks.h"
/* jd-inv + terminating entry */
#define MAX_NO_PROPS 2
struct byt_cht_es8316_private {
struct clk *mclk;
struct snd_soc_jack jack;
struct gpio_desc *speaker_en_gpio;
struct device *codec_dev;
bool speaker_en;
};
enum {
BYT_CHT_ES8316_INTMIC_IN1_MAP,
BYT_CHT_ES8316_INTMIC_IN2_MAP,
};
#define BYT_CHT_ES8316_MAP(quirk) ((quirk) & GENMASK(3, 0))
#define BYT_CHT_ES8316_SSP0 BIT(16)
#define BYT_CHT_ES8316_MONO_SPEAKER BIT(17)
#define BYT_CHT_ES8316_JD_INVERTED BIT(18)
static unsigned long quirk;
static int quirk_override = -1;
module_param_named(quirk, quirk_override, int, 0444);
MODULE_PARM_DESC(quirk, "Board-specific quirk override");
static void log_quirks(struct device *dev)
{
if (BYT_CHT_ES8316_MAP(quirk) == BYT_CHT_ES8316_INTMIC_IN1_MAP)
dev_info(dev, "quirk IN1_MAP enabled");
if (BYT_CHT_ES8316_MAP(quirk) == BYT_CHT_ES8316_INTMIC_IN2_MAP)
dev_info(dev, "quirk IN2_MAP enabled");
if (quirk & BYT_CHT_ES8316_SSP0)
dev_info(dev, "quirk SSP0 enabled");
if (quirk & BYT_CHT_ES8316_MONO_SPEAKER)
dev_info(dev, "quirk MONO_SPEAKER enabled\n");
if (quirk & BYT_CHT_ES8316_JD_INVERTED)
dev_info(dev, "quirk JD_INVERTED enabled\n");
}
static int byt_cht_es8316_speaker_power_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_card *card = w->dapm->card;
struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
if (SND_SOC_DAPM_EVENT_ON(event))
priv->speaker_en = true;
else
priv->speaker_en = false;
gpiod_set_value_cansleep(priv->speaker_en_gpio, priv->speaker_en);
return 0;
}
static const struct snd_soc_dapm_widget byt_cht_es8316_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Internal Mic", NULL),
SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0,
byt_cht_es8316_speaker_power_event,
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
};
static const struct snd_soc_dapm_route byt_cht_es8316_audio_map[] = {
{"Headphone", NULL, "HPOL"},
{"Headphone", NULL, "HPOR"},
/*
* There is no separate speaker output instead the speakers are muxed to
* the HP outputs. The mux is controlled by the "Speaker Power" supply.
*/
{"Speaker", NULL, "HPOL"},
{"Speaker", NULL, "HPOR"},
{"Speaker", NULL, "Speaker Power"},
};
static const struct snd_soc_dapm_route byt_cht_es8316_intmic_in1_map[] = {
{"MIC1", NULL, "Internal Mic"},
{"MIC2", NULL, "Headset Mic"},
};
static const struct snd_soc_dapm_route byt_cht_es8316_intmic_in2_map[] = {
{"MIC2", NULL, "Internal Mic"},
{"MIC1", NULL, "Headset Mic"},
};
static const struct snd_soc_dapm_route byt_cht_es8316_ssp0_map[] = {
{"Playback", NULL, "ssp0 Tx"},
{"ssp0 Tx", NULL, "modem_out"},
{"modem_in", NULL, "ssp0 Rx"},
{"ssp0 Rx", NULL, "Capture"},
};
static const struct snd_soc_dapm_route byt_cht_es8316_ssp2_map[] = {
{"Playback", NULL, "ssp2 Tx"},
{"ssp2 Tx", NULL, "codec_out0"},
{"ssp2 Tx", NULL, "codec_out1"},
{"codec_in0", NULL, "ssp2 Rx" },
{"codec_in1", NULL, "ssp2 Rx" },
{"ssp2 Rx", NULL, "Capture"},
};
static const struct snd_kcontrol_new byt_cht_es8316_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Internal Mic"),
};
static struct snd_soc_jack_pin byt_cht_es8316_jack_pins[] = {
{
.pin = "Headphone",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
static int byt_cht_es8316_init(struct snd_soc_pcm_runtime *runtime)
{
struct snd_soc_component *codec = asoc_rtd_to_codec(runtime, 0)->component;
struct snd_soc_card *card = runtime->card;
struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
const struct snd_soc_dapm_route *custom_map;
int num_routes;
int ret;
card->dapm.idle_bias_off = true;
switch (BYT_CHT_ES8316_MAP(quirk)) {
case BYT_CHT_ES8316_INTMIC_IN1_MAP:
default:
custom_map = byt_cht_es8316_intmic_in1_map;
num_routes = ARRAY_SIZE(byt_cht_es8316_intmic_in1_map);
break;
case BYT_CHT_ES8316_INTMIC_IN2_MAP:
custom_map = byt_cht_es8316_intmic_in2_map;
num_routes = ARRAY_SIZE(byt_cht_es8316_intmic_in2_map);
break;
}
ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
if (ret)
return ret;
if (quirk & BYT_CHT_ES8316_SSP0) {
custom_map = byt_cht_es8316_ssp0_map;
num_routes = ARRAY_SIZE(byt_cht_es8316_ssp0_map);
} else {
custom_map = byt_cht_es8316_ssp2_map;
num_routes = ARRAY_SIZE(byt_cht_es8316_ssp2_map);
}
ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
if (ret)
return ret;
/*
* The firmware might enable the clock at boot (this information
* may or may not be reflected in the enable clock register).
* To change the rate we must disable the clock first to cover these
* cases. Due to common clock framework restrictions that do not allow
* to disable a clock that has not been enabled, we need to enable
* the clock first.
*/
ret = clk_prepare_enable(priv->mclk);
if (!ret)
clk_disable_unprepare(priv->mclk);
ret = clk_set_rate(priv->mclk, 19200000);
if (ret)
dev_err(card->dev, "unable to set MCLK rate\n");
ret = clk_prepare_enable(priv->mclk);
if (ret)
dev_err(card->dev, "unable to enable MCLK\n");
ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(runtime, 0), 0, 19200000,
SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(card->dev, "can't set codec clock %d\n", ret);
return ret;
}
ret = snd_soc_card_jack_new_pins(card, "Headset",
SND_JACK_HEADSET | SND_JACK_BTN_0,
&priv->jack, byt_cht_es8316_jack_pins,
ARRAY_SIZE(byt_cht_es8316_jack_pins));
if (ret) {
dev_err(card->dev, "jack creation failed %d\n", ret);
return ret;
}
snd_jack_set_key(priv->jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_soc_component_set_jack(codec, &priv->jack, NULL);
return 0;
}
static int byt_cht_es8316_codec_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
struct snd_interval *rate = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_RATE);
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
int ret, bits;
/* The DSP will convert the FE rate to 48k, stereo */
rate->min = rate->max = 48000;
channels->min = channels->max = 2;
if (quirk & BYT_CHT_ES8316_SSP0) {
/* set SSP0 to 16-bit */
params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
bits = 16;
} else {
/* set SSP2 to 24-bit */
params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
bits = 24;
}
/*
* Default mode for SSP configuration is TDM 4 slot, override config
* with explicit setting to I2S 2ch 24-bit. The word length is set with
* dai_set_tdm_slot() since there is no other API exposed
*/
ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_BP_FP
);
if (ret < 0) {
dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, bits);
if (ret < 0) {
dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
return ret;
}
return 0;
}
static int byt_cht_es8316_aif1_startup(struct snd_pcm_substream *substream)
{
return snd_pcm_hw_constraint_single(substream->runtime,
SNDRV_PCM_HW_PARAM_RATE, 48000);
}
static const struct snd_soc_ops byt_cht_es8316_aif1_ops = {
.startup = byt_cht_es8316_aif1_startup,
};
SND_SOC_DAILINK_DEF(dummy,
DAILINK_COMP_ARRAY(COMP_DUMMY()));
SND_SOC_DAILINK_DEF(media,
DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
SND_SOC_DAILINK_DEF(deepbuffer,
DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
SND_SOC_DAILINK_DEF(ssp2_port,
DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
SND_SOC_DAILINK_DEF(ssp2_codec,
DAILINK_COMP_ARRAY(COMP_CODEC("i2c-ESSX8316:00", "ES8316 HiFi")));
SND_SOC_DAILINK_DEF(platform,
DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
static struct snd_soc_dai_link byt_cht_es8316_dais[] = {
[MERR_DPCM_AUDIO] = {
.name = "Audio Port",
.stream_name = "Audio",
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.dpcm_capture = 1,
.ops = &byt_cht_es8316_aif1_ops,
SND_SOC_DAILINK_REG(media, dummy, platform),
},
[MERR_DPCM_DEEP_BUFFER] = {
.name = "Deep-Buffer Audio Port",
.stream_name = "Deep-Buffer Audio",
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.ops = &byt_cht_es8316_aif1_ops,
SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
},
/* back ends */
{
.name = "SSP2-Codec",
.id = 0,
.no_pcm = 1,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBC_CFC,
.be_hw_params_fixup = byt_cht_es8316_codec_fixup,
.dpcm_playback = 1,
.dpcm_capture = 1,
.init = byt_cht_es8316_init,
SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
},
};
/* SoC card */
static char codec_name[SND_ACPI_I2C_ID_LEN];
#if !IS_ENABLED(CONFIG_SND_SOC_INTEL_USER_FRIENDLY_LONG_NAMES)
static char long_name[50]; /* = "bytcht-es8316-*-spk-*-mic" */
#endif
static char components_string[32]; /* = "cfg-spk:* cfg-mic:* */
static int byt_cht_es8316_suspend(struct snd_soc_card *card)
{
struct snd_soc_component *component;
for_each_card_components(card, component) {
if (!strcmp(component->name, codec_name)) {
dev_dbg(component->dev, "disabling jack detect before suspend\n");
snd_soc_component_set_jack(component, NULL, NULL);
break;
}
}
return 0;
}
static int byt_cht_es8316_resume(struct snd_soc_card *card)
{
struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
struct snd_soc_component *component;
for_each_card_components(card, component) {
if (!strcmp(component->name, codec_name)) {
dev_dbg(component->dev, "re-enabling jack detect after resume\n");
snd_soc_component_set_jack(component, &priv->jack, NULL);
break;
}
}
/*
* Some Cherry Trail boards with an ES8316 codec have a bug in their
* ACPI tables where the MSSL1680 touchscreen's _PS0 and _PS3 methods
* wrongly also set the speaker-enable GPIO to 1/0. Testing has shown
* that this really is a bug and the GPIO has no influence on the
* touchscreen at all.
*
* The silead.c touchscreen driver does not support runtime suspend, so
* the GPIO can only be changed underneath us during a system suspend.
* This resume() function runs from a pm complete() callback, and thus
* is guaranteed to run after the touchscreen driver/ACPI-subsys has
* brought the touchscreen back up again (and thus changed the GPIO).
*
* So to work around this we pass GPIOD_FLAGS_BIT_NONEXCLUSIVE when
* requesting the GPIO and we set its value here to undo any changes
* done by the touchscreen's broken _PS0 ACPI method.
*/
gpiod_set_value_cansleep(priv->speaker_en_gpio, priv->speaker_en);
return 0;
}
/* use space before codec name to simplify card ID, and simplify driver name */
#define SOF_CARD_NAME "bytcht es8316" /* card name will be 'sof-bytcht es8316' */
#define SOF_DRIVER_NAME "SOF"
#define CARD_NAME "bytcht-es8316"
#define DRIVER_NAME NULL /* card name will be used for driver name */
static struct snd_soc_card byt_cht_es8316_card = {
.owner = THIS_MODULE,
.dai_link = byt_cht_es8316_dais,
.num_links = ARRAY_SIZE(byt_cht_es8316_dais),
.dapm_widgets = byt_cht_es8316_widgets,
.num_dapm_widgets = ARRAY_SIZE(byt_cht_es8316_widgets),
.dapm_routes = byt_cht_es8316_audio_map,
.num_dapm_routes = ARRAY_SIZE(byt_cht_es8316_audio_map),
.controls = byt_cht_es8316_controls,
.num_controls = ARRAY_SIZE(byt_cht_es8316_controls),
.fully_routed = true,
.suspend_pre = byt_cht_es8316_suspend,
.resume_post = byt_cht_es8316_resume,
};
static const struct acpi_gpio_params first_gpio = { 0, 0, false };
static const struct acpi_gpio_mapping byt_cht_es8316_gpios[] = {
{ "speaker-enable-gpios", &first_gpio, 1 },
{ },
};
/* Please keep this list alphabetically sorted */
static const struct dmi_system_id byt_cht_es8316_quirk_table[] = {
{ /* Irbis NB41 */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "IRBIS"),
DMI_MATCH(DMI_PRODUCT_NAME, "NB41"),
},
.driver_data = (void *)(BYT_CHT_ES8316_SSP0
| BYT_CHT_ES8316_INTMIC_IN2_MAP
| BYT_CHT_ES8316_JD_INVERTED),
},
{ /* Nanote UMPC-01 */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "RWC CO.,LTD"),
DMI_MATCH(DMI_PRODUCT_NAME, "UMPC-01"),
},
.driver_data = (void *)BYT_CHT_ES8316_INTMIC_IN1_MAP,
},
{ /* Teclast X98 Plus II */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "TECLAST"),
DMI_MATCH(DMI_PRODUCT_NAME, "X98 Plus II"),
},
.driver_data = (void *)(BYT_CHT_ES8316_INTMIC_IN1_MAP
| BYT_CHT_ES8316_JD_INVERTED),
},
{}
};
static int snd_byt_cht_es8316_mc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
static const char * const mic_name[] = { "in1", "in2" };
struct snd_soc_acpi_mach *mach = dev_get_platdata(dev);
struct property_entry props[MAX_NO_PROPS] = {};
struct byt_cht_es8316_private *priv;
const struct dmi_system_id *dmi_id;
struct fwnode_handle *fwnode;
const char *platform_name;
struct acpi_device *adev;
struct device *codec_dev;
bool sof_parent;
unsigned int cnt = 0;
int dai_index = 0;
int i;
int ret = 0;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
/* fix index of codec dai */
for (i = 0; i < ARRAY_SIZE(byt_cht_es8316_dais); i++) {
if (!strcmp(byt_cht_es8316_dais[i].codecs->name,
"i2c-ESSX8316:00")) {
dai_index = i;
break;
}
}
/* fixup codec name based on HID */
adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
if (adev) {
snprintf(codec_name, sizeof(codec_name),
"i2c-%s", acpi_dev_name(adev));
byt_cht_es8316_dais[dai_index].codecs->name = codec_name;
} else {
dev_err(dev, "Error cannot find '%s' dev\n", mach->id);
return -ENXIO;
}
codec_dev = acpi_get_first_physical_node(adev);
acpi_dev_put(adev);
if (!codec_dev)
return -EPROBE_DEFER;
priv->codec_dev = get_device(codec_dev);
/* override platform name, if required */
byt_cht_es8316_card.dev = dev;
platform_name = mach->mach_params.platform;
ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_es8316_card,
platform_name);
if (ret) {
put_device(codec_dev);
return ret;
}
/* Check for BYTCR or other platform and setup quirks */
dmi_id = dmi_first_match(byt_cht_es8316_quirk_table);
if (dmi_id) {
quirk = (unsigned long)dmi_id->driver_data;
} else if (soc_intel_is_byt() &&
mach->mach_params.acpi_ipc_irq_index == 0) {
/* On BYTCR default to SSP0, internal-mic-in2-map, mono-spk */
quirk = BYT_CHT_ES8316_SSP0 | BYT_CHT_ES8316_INTMIC_IN2_MAP |
BYT_CHT_ES8316_MONO_SPEAKER;
} else {
/* Others default to internal-mic-in1-map, mono-speaker */
quirk = BYT_CHT_ES8316_INTMIC_IN1_MAP |
BYT_CHT_ES8316_MONO_SPEAKER;
}
if (quirk_override != -1) {
dev_info(dev, "Overriding quirk 0x%lx => 0x%x\n",
quirk, quirk_override);
quirk = quirk_override;
}
log_quirks(dev);
if (quirk & BYT_CHT_ES8316_SSP0)
byt_cht_es8316_dais[dai_index].cpus->dai_name = "ssp0-port";
/* get the clock */
priv->mclk = devm_clk_get(dev, "pmc_plt_clk_3");
if (IS_ERR(priv->mclk)) {
put_device(codec_dev);
return dev_err_probe(dev, PTR_ERR(priv->mclk), "clk_get pmc_plt_clk_3 failed\n");
}
if (quirk & BYT_CHT_ES8316_JD_INVERTED)
props[cnt++] = PROPERTY_ENTRY_BOOL("everest,jack-detect-inverted");
if (cnt) {
fwnode = fwnode_create_software_node(props, NULL);
if (IS_ERR(fwnode)) {
put_device(codec_dev);
return PTR_ERR(fwnode);
}
ret = device_add_software_node(codec_dev, to_software_node(fwnode));
fwnode_handle_put(fwnode);
if (ret) {
put_device(codec_dev);
return ret;
}
}
/* get speaker enable GPIO */
devm_acpi_dev_add_driver_gpios(codec_dev, byt_cht_es8316_gpios);
priv->speaker_en_gpio =
gpiod_get_optional(codec_dev, "speaker-enable",
/* see comment in byt_cht_es8316_resume() */
GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE);
if (IS_ERR(priv->speaker_en_gpio)) {
ret = dev_err_probe(dev, PTR_ERR(priv->speaker_en_gpio),
"get speaker GPIO failed\n");
goto err_put_codec;
}
snprintf(components_string, sizeof(components_string),
"cfg-spk:%s cfg-mic:%s",
(quirk & BYT_CHT_ES8316_MONO_SPEAKER) ? "1" : "2",
mic_name[BYT_CHT_ES8316_MAP(quirk)]);
byt_cht_es8316_card.components = components_string;
#if !IS_ENABLED(CONFIG_SND_SOC_INTEL_USER_FRIENDLY_LONG_NAMES)
snprintf(long_name, sizeof(long_name), "bytcht-es8316-%s-spk-%s-mic",
(quirk & BYT_CHT_ES8316_MONO_SPEAKER) ? "mono" : "stereo",
mic_name[BYT_CHT_ES8316_MAP(quirk)]);
byt_cht_es8316_card.long_name = long_name;
#endif
sof_parent = snd_soc_acpi_sof_parent(dev);
/* set card and driver name */
if (sof_parent) {
byt_cht_es8316_card.name = SOF_CARD_NAME;
byt_cht_es8316_card.driver_name = SOF_DRIVER_NAME;
} else {
byt_cht_es8316_card.name = CARD_NAME;
byt_cht_es8316_card.driver_name = DRIVER_NAME;
}
/* set pm ops */
if (sof_parent)
dev->driver->pm = &snd_soc_pm_ops;
/* register the soc card */
snd_soc_card_set_drvdata(&byt_cht_es8316_card, priv);
ret = devm_snd_soc_register_card(dev, &byt_cht_es8316_card);
if (ret) {
gpiod_put(priv->speaker_en_gpio);
dev_err(dev, "snd_soc_register_card failed: %d\n", ret);
goto err_put_codec;
}
platform_set_drvdata(pdev, &byt_cht_es8316_card);
return 0;
err_put_codec:
device_remove_software_node(priv->codec_dev);
put_device(priv->codec_dev);
return ret;
}
static int snd_byt_cht_es8316_mc_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
gpiod_put(priv->speaker_en_gpio);
device_remove_software_node(priv->codec_dev);
put_device(priv->codec_dev);
return 0;
}
static struct platform_driver snd_byt_cht_es8316_mc_driver = {
.driver = {
.name = "bytcht_es8316",
},
.probe = snd_byt_cht_es8316_mc_probe,
.remove = snd_byt_cht_es8316_mc_remove,
};
module_platform_driver(snd_byt_cht_es8316_mc_driver);
MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver");
MODULE_AUTHOR("David Yang <yangxiaohua@everest-semi.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:bytcht_es8316");
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