linux/sound/soc/intel/boards/bytcht_es8316.c
Linus Torvalds bcb46a0e0e sound fixes for 5.2-rc5
you might feel like a deja vu to receive a bulk of changes at rc5,
 and it happens again; we've got a collection of fixes for ASoC.
 Most of fixes are targeted for the newly merged SOF (Sound Open
 Firmware) stuff and the relevant fixes for Intel platforms.
 
 Other than that, there are a few regression fixes for the recent
 ASoC core changes and HD-audio quirk, as well as a couple of
 FireWire fixes and for other ASoC codecs.
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Merge tag 'sound-5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "It might feel like deja vu to receive a bulk of changes at rc5, and it
  happens again; we've got a collection of fixes for ASoC. Most of fixes
  are targeted for the newly merged SOF (Sound Open Firmware) stuff and
  the relevant fixes for Intel platforms.

  Other than that, there are a few regression fixes for the recent ASoC
  core changes and HD-audio quirk, as well as a couple of FireWire fixes
  and for other ASoC codecs"

* tag 'sound-5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (54 commits)
  Revert "ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops"
  ALSA: ice1712: Check correct return value to snd_i2c_sendbytes (EWS/DMX 6Fire)
  ALSA: oxfw: allow PCM capture for Stanton SCS.1m
  ALSA: firewire-motu: fix destruction of data for isochronous resources
  ASoC: Intel: sst: fix kmalloc call with wrong flags
  ASoC: core: Fix deadlock in snd_soc_instantiate_card()
  SoC: rt274: Fix internal jack assignment in set_jack callback
  ALSA: hdac: fix memory release for SST and SOF drivers
  ASoC: SOF: Intel: hda: use the defined ppcap functions
  ASoC: core: move DAI pre-links initiation to snd_soc_instantiate_card
  ASoC: Intel: cht_bsw_rt5672: fix kernel oops with platform_name override
  ASoC: Intel: cht_bsw_nau8824: fix kernel oops with platform_name override
  ASoC: Intel: bytcht_es8316: fix kernel oops with platform_name override
  ASoC: Intel: cht_bsw_max98090: fix kernel oops with platform_name override
  ASoC: sun4i-i2s: Add offset to RX channel select
  ASoC: sun4i-i2s: Fix sun8i tx channel offset mask
  ASoC: max98090: remove 24-bit format support if RJ is 0
  ASoC: da7219: Fix build error without CONFIG_I2C
  ASoC: SOF: Intel: hda: Fix COMPILE_TEST build error
  ASoC: SOF: fix DSP oops definitions in FW ABI
  ...
2019-06-14 05:37:06 -10:00

605 lines
17 KiB
C

// 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 <asm/cpu_device_id.h>
#include <asm/intel-family.h>
#include <asm/platform_sst_audio.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/sst-dsp.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;
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 = runtime->codec_dai->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(runtime->codec_dai, 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(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 const struct snd_soc_pcm_stream byt_cht_es8316_dai_params = {
.formats = SNDRV_PCM_FMTBIT_S24_LE,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
};
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 covert 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(rtd->cpu_dai,
SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS
);
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(rtd->cpu_dai, 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,
};
static struct snd_soc_dai_link byt_cht_es8316_dais[] = {
[MERR_DPCM_AUDIO] = {
.name = "Audio Port",
.stream_name = "Audio",
.cpu_dai_name = "media-cpu-dai",
.codec_dai_name = "snd-soc-dummy-dai",
.codec_name = "snd-soc-dummy",
.platform_name = "sst-mfld-platform",
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.dpcm_capture = 1,
.ops = &byt_cht_es8316_aif1_ops,
},
[MERR_DPCM_DEEP_BUFFER] = {
.name = "Deep-Buffer Audio Port",
.stream_name = "Deep-Buffer Audio",
.cpu_dai_name = "deepbuffer-cpu-dai",
.codec_dai_name = "snd-soc-dummy-dai",
.codec_name = "snd-soc-dummy",
.platform_name = "sst-mfld-platform",
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.ops = &byt_cht_es8316_aif1_ops,
},
/* back ends */
{
/* Only SSP2 has been tested here, so BYT-CR platforms that
* require SSP0 will not work.
*/
.name = "SSP2-Codec",
.id = 0,
.cpu_dai_name = "ssp2-port",
.platform_name = "sst-mfld-platform",
.no_pcm = 1,
.codec_dai_name = "ES8316 HiFi",
.codec_name = "i2c-ESSX8316:00",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS,
.be_hw_params_fixup = byt_cht_es8316_codec_fixup,
.nonatomic = true,
.dpcm_playback = 1,
.dpcm_capture = 1,
.init = byt_cht_es8316_init,
},
};
/* SoC card */
static char codec_name[SND_ACPI_I2C_ID_LEN];
static char long_name[50]; /* = "bytcht-es8316-*-spk-*-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;
}
static struct snd_soc_card byt_cht_es8316_card = {
.name = "bytcht-es8316",
.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 x86_cpu_id baytrail_cpu_ids[] = {
{ X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_SILVERMONT }, /* Valleyview */
{}
};
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[] = {
{ /* 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)
{
static const char * const mic_name[] = { "in1", "in2" };
struct property_entry props[MAX_NO_PROPS] = {};
struct byt_cht_es8316_private *priv;
const struct dmi_system_id *dmi_id;
struct device *dev = &pdev->dev;
struct snd_soc_acpi_mach *mach;
const char *platform_name;
struct acpi_device *adev;
struct device *codec_dev;
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;
mach = dev->platform_data;
/* fix index of codec dai */
for (i = 0; i < ARRAY_SIZE(byt_cht_es8316_dais); i++) {
if (!strcmp(byt_cht_es8316_dais[i].codec_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));
put_device(&adev->dev);
byt_cht_es8316_dais[dai_index].codec_name = codec_name;
}
/* override plaform 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)
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 (x86_match_cpu(baytrail_cpu_ids) &&
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%x => 0x%x\n",
(unsigned int)quirk,
quirk_override);
quirk = quirk_override;
}
log_quirks(dev);
if (quirk & BYT_CHT_ES8316_SSP0)
byt_cht_es8316_dais[dai_index].cpu_dai_name = "ssp0-port";
/* get the clock */
priv->mclk = devm_clk_get(dev, "pmc_plt_clk_3");
if (IS_ERR(priv->mclk)) {
ret = PTR_ERR(priv->mclk);
dev_err(dev, "clk_get pmc_plt_clk_3 failed: %d\n", ret);
return ret;
}
/* get speaker enable GPIO */
codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL, codec_name);
if (!codec_dev)
return -EPROBE_DEFER;
if (quirk & BYT_CHT_ES8316_JD_INVERTED)
props[cnt++] = PROPERTY_ENTRY_BOOL("everest,jack-detect-inverted");
if (cnt) {
ret = device_add_properties(codec_dev, props);
if (ret)
return ret;
}
devm_acpi_dev_add_driver_gpios(codec_dev, byt_cht_es8316_gpios);
priv->speaker_en_gpio =
gpiod_get_index(codec_dev, "speaker-enable", 0,
/* see comment in byt_cht_es8316_resume */
GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE);
put_device(codec_dev);
if (IS_ERR(priv->speaker_en_gpio)) {
ret = PTR_ERR(priv->speaker_en_gpio);
switch (ret) {
case -ENOENT:
priv->speaker_en_gpio = NULL;
break;
default:
dev_err(dev, "get speaker GPIO failed: %d\n", ret);
/* fall through */
case -EPROBE_DEFER:
return ret;
}
}
/* register the soc card */
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;
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);
return ret;
}
platform_set_drvdata(pdev, &byt_cht_es8316_card);
return 0;
}
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);
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");