544 lines
14 KiB
C
544 lines
14 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
// Copyright(c) 2018-19 Canonical Corporation.
|
|
|
|
/*
|
|
* Intel Kabylake I2S Machine Driver with RT5660 Codec
|
|
*
|
|
* Modified from:
|
|
* Intel Kabylake I2S Machine driver supporting MAXIM98357a and
|
|
* DA7219 codecs
|
|
* Also referred to:
|
|
* Intel Broadwell I2S Machine driver supporting RT5677 codec
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/gpio/consumer.h>
|
|
#include <linux/acpi.h>
|
|
#include <sound/core.h>
|
|
#include <sound/jack.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/soc.h>
|
|
|
|
#include "../../codecs/hdac_hdmi.h"
|
|
#include "../../codecs/rt5660.h"
|
|
|
|
#define KBL_RT5660_CODEC_DAI "rt5660-aif1"
|
|
#define DUAL_CHANNEL 2
|
|
|
|
static struct snd_soc_card *kabylake_audio_card;
|
|
static struct snd_soc_jack skylake_hdmi[3];
|
|
static struct snd_soc_jack lineout_jack;
|
|
static struct snd_soc_jack mic_jack;
|
|
|
|
struct kbl_hdmi_pcm {
|
|
struct list_head head;
|
|
struct snd_soc_dai *codec_dai;
|
|
int device;
|
|
};
|
|
|
|
struct kbl_codec_private {
|
|
struct gpio_desc *gpio_lo_mute;
|
|
struct list_head hdmi_pcm_list;
|
|
};
|
|
|
|
enum {
|
|
KBL_DPCM_AUDIO_PB = 0,
|
|
KBL_DPCM_AUDIO_CP,
|
|
KBL_DPCM_AUDIO_HDMI1_PB,
|
|
KBL_DPCM_AUDIO_HDMI2_PB,
|
|
KBL_DPCM_AUDIO_HDMI3_PB,
|
|
};
|
|
|
|
#define GPIO_LINEOUT_MUTE_INDEX 0
|
|
#define GPIO_LINEOUT_DET_INDEX 3
|
|
#define GPIO_LINEIN_DET_INDEX 4
|
|
|
|
static const struct acpi_gpio_params lineout_mute_gpio = { GPIO_LINEOUT_MUTE_INDEX, 0, true };
|
|
static const struct acpi_gpio_params lineout_det_gpio = { GPIO_LINEOUT_DET_INDEX, 0, false };
|
|
static const struct acpi_gpio_params mic_det_gpio = { GPIO_LINEIN_DET_INDEX, 0, false };
|
|
|
|
|
|
static const struct acpi_gpio_mapping acpi_rt5660_gpios[] = {
|
|
{ "lineout-mute-gpios", &lineout_mute_gpio, 1 },
|
|
{ "lineout-det-gpios", &lineout_det_gpio, 1 },
|
|
{ "mic-det-gpios", &mic_det_gpio, 1 },
|
|
{ NULL },
|
|
};
|
|
|
|
static struct snd_soc_jack_pin lineout_jack_pin = {
|
|
.pin = "Line Out",
|
|
.mask = SND_JACK_LINEOUT,
|
|
};
|
|
|
|
static struct snd_soc_jack_pin mic_jack_pin = {
|
|
.pin = "Line In",
|
|
.mask = SND_JACK_MICROPHONE,
|
|
};
|
|
|
|
static struct snd_soc_jack_gpio lineout_jack_gpio = {
|
|
.name = "lineout-det",
|
|
.report = SND_JACK_LINEOUT,
|
|
.debounce_time = 200,
|
|
};
|
|
|
|
static struct snd_soc_jack_gpio mic_jack_gpio = {
|
|
.name = "mic-det",
|
|
.report = SND_JACK_MICROPHONE,
|
|
.debounce_time = 200,
|
|
};
|
|
|
|
static int kabylake_5660_event_lineout(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *k, int event)
|
|
{
|
|
struct snd_soc_dapm_context *dapm = w->dapm;
|
|
struct kbl_codec_private *priv = snd_soc_card_get_drvdata(dapm->card);
|
|
|
|
gpiod_set_value_cansleep(priv->gpio_lo_mute,
|
|
!(SND_SOC_DAPM_EVENT_ON(event)));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_kcontrol_new kabylake_rt5660_controls[] = {
|
|
SOC_DAPM_PIN_SWITCH("Line In"),
|
|
SOC_DAPM_PIN_SWITCH("Line Out"),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_widget kabylake_rt5660_widgets[] = {
|
|
SND_SOC_DAPM_MIC("Line In", NULL),
|
|
SND_SOC_DAPM_LINE("Line Out", kabylake_5660_event_lineout),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route kabylake_rt5660_map[] = {
|
|
/* other jacks */
|
|
{"IN1P", NULL, "Line In"},
|
|
{"IN2P", NULL, "Line In"},
|
|
{"Line Out", NULL, "LOUTR"},
|
|
{"Line Out", NULL, "LOUTL"},
|
|
|
|
/* CODEC BE connections */
|
|
{ "AIF1 Playback", NULL, "ssp0 Tx"},
|
|
{ "ssp0 Tx", NULL, "codec0_out"},
|
|
|
|
{ "codec0_in", NULL, "ssp0 Rx" },
|
|
{ "ssp0 Rx", NULL, "AIF1 Capture" },
|
|
|
|
{ "hifi1", NULL, "iDisp1 Tx"},
|
|
{ "iDisp1 Tx", NULL, "iDisp1_out"},
|
|
{ "hifi2", NULL, "iDisp2 Tx"},
|
|
{ "iDisp2 Tx", NULL, "iDisp2_out"},
|
|
{ "hifi3", NULL, "iDisp3 Tx"},
|
|
{ "iDisp3 Tx", NULL, "iDisp3_out"},
|
|
};
|
|
|
|
static int kabylake_ssp0_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);
|
|
struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
|
|
|
|
/* The ADSP will convert the FE rate to 48k, stereo */
|
|
rate->min = rate->max = 48000;
|
|
channels->min = channels->max = DUAL_CHANNEL;
|
|
|
|
/* set SSP0 to 24 bit */
|
|
snd_mask_none(fmt);
|
|
snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int kabylake_rt5660_codec_init(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
int ret;
|
|
struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(rtd->card);
|
|
struct snd_soc_component *component = rtd->codec_dai->component;
|
|
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
|
|
|
|
ret = devm_acpi_dev_add_driver_gpios(component->dev, acpi_rt5660_gpios);
|
|
if (ret)
|
|
dev_warn(component->dev, "Failed to add driver gpios\n");
|
|
|
|
/* Request rt5660 GPIO for lineout mute control, return if fails */
|
|
ctx->gpio_lo_mute = devm_gpiod_get(component->dev, "lineout-mute",
|
|
GPIOD_OUT_HIGH);
|
|
if (IS_ERR(ctx->gpio_lo_mute)) {
|
|
dev_err(component->dev, "Can't find GPIO_MUTE# gpio\n");
|
|
return PTR_ERR(ctx->gpio_lo_mute);
|
|
}
|
|
|
|
/* Create and initialize headphone jack, this jack is not mandatory, don't return if fails */
|
|
ret = snd_soc_card_jack_new(rtd->card, "Lineout Jack",
|
|
SND_JACK_LINEOUT, &lineout_jack,
|
|
&lineout_jack_pin, 1);
|
|
if (ret)
|
|
dev_warn(component->dev, "Can't create Lineout jack\n");
|
|
else {
|
|
lineout_jack_gpio.gpiod_dev = component->dev;
|
|
ret = snd_soc_jack_add_gpios(&lineout_jack, 1,
|
|
&lineout_jack_gpio);
|
|
if (ret)
|
|
dev_warn(component->dev, "Can't add Lineout jack gpio\n");
|
|
}
|
|
|
|
/* Create and initialize mic jack, this jack is not mandatory, don't return if fails */
|
|
ret = snd_soc_card_jack_new(rtd->card, "Mic Jack",
|
|
SND_JACK_MICROPHONE, &mic_jack,
|
|
&mic_jack_pin, 1);
|
|
if (ret)
|
|
dev_warn(component->dev, "Can't create mic jack\n");
|
|
else {
|
|
mic_jack_gpio.gpiod_dev = component->dev;
|
|
ret = snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio);
|
|
if (ret)
|
|
dev_warn(component->dev, "Can't add mic jack gpio\n");
|
|
}
|
|
|
|
/* Here we enable some dapms in advance to reduce the pop noise for recording via line-in */
|
|
snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
|
|
snd_soc_dapm_force_enable_pin(dapm, "BST1");
|
|
snd_soc_dapm_force_enable_pin(dapm, "BST2");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int kabylake_hdmi_init(struct snd_soc_pcm_runtime *rtd, int device)
|
|
{
|
|
struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(rtd->card);
|
|
struct snd_soc_dai *dai = rtd->codec_dai;
|
|
struct kbl_hdmi_pcm *pcm;
|
|
|
|
pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
|
|
if (!pcm)
|
|
return -ENOMEM;
|
|
|
|
pcm->device = device;
|
|
pcm->codec_dai = dai;
|
|
|
|
list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int kabylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI1_PB);
|
|
}
|
|
|
|
static int kabylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI2_PB);
|
|
}
|
|
|
|
static int kabylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI3_PB);
|
|
}
|
|
|
|
static int kabylake_rt5660_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;
|
|
int ret;
|
|
|
|
ret = snd_soc_dai_set_sysclk(codec_dai,
|
|
RT5660_SCLK_S_PLL1, params_rate(params) * 512,
|
|
SND_SOC_CLOCK_IN);
|
|
if (ret < 0) {
|
|
dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = snd_soc_dai_set_pll(codec_dai, 0,
|
|
RT5660_PLL1_S_BCLK,
|
|
params_rate(params) * 50,
|
|
params_rate(params) * 512);
|
|
if (ret < 0)
|
|
dev_err(codec_dai->dev, "can't set codec pll: %d\n", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct snd_soc_ops kabylake_rt5660_ops = {
|
|
.hw_params = kabylake_rt5660_hw_params,
|
|
};
|
|
|
|
static const unsigned int rates[] = {
|
|
48000,
|
|
};
|
|
|
|
static const struct snd_pcm_hw_constraint_list constraints_rates = {
|
|
.count = ARRAY_SIZE(rates),
|
|
.list = rates,
|
|
.mask = 0,
|
|
};
|
|
|
|
static const unsigned int channels[] = {
|
|
DUAL_CHANNEL,
|
|
};
|
|
|
|
static const struct snd_pcm_hw_constraint_list constraints_channels = {
|
|
.count = ARRAY_SIZE(channels),
|
|
.list = channels,
|
|
.mask = 0,
|
|
};
|
|
|
|
static int kbl_fe_startup(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
|
|
/*
|
|
* On this platform for PCM device we support,
|
|
* 48Khz
|
|
* stereo
|
|
* 16 bit audio
|
|
*/
|
|
|
|
runtime->hw.channels_max = DUAL_CHANNEL;
|
|
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
|
|
&constraints_channels);
|
|
|
|
runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
|
|
snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
|
|
|
|
snd_pcm_hw_constraint_list(runtime, 0,
|
|
SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_ops kabylake_rt5660_fe_ops = {
|
|
.startup = kbl_fe_startup,
|
|
};
|
|
|
|
/* kabylake digital audio interface glue - connects rt5660 codec <--> CPU */
|
|
static struct snd_soc_dai_link kabylake_rt5660_dais[] = {
|
|
/* Front End DAI links */
|
|
[KBL_DPCM_AUDIO_PB] = {
|
|
.name = "Kbl Audio Port",
|
|
.stream_name = "Audio",
|
|
.cpu_dai_name = "System Pin",
|
|
.platform_name = "0000:00:1f.3",
|
|
.dynamic = 1,
|
|
.codec_name = "snd-soc-dummy",
|
|
.codec_dai_name = "snd-soc-dummy-dai",
|
|
.nonatomic = 1,
|
|
.trigger = {
|
|
SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
|
|
.dpcm_playback = 1,
|
|
.ops = &kabylake_rt5660_fe_ops,
|
|
},
|
|
[KBL_DPCM_AUDIO_CP] = {
|
|
.name = "Kbl Audio Capture Port",
|
|
.stream_name = "Audio Record",
|
|
.cpu_dai_name = "System Pin",
|
|
.platform_name = "0000:00:1f.3",
|
|
.dynamic = 1,
|
|
.codec_name = "snd-soc-dummy",
|
|
.codec_dai_name = "snd-soc-dummy-dai",
|
|
.nonatomic = 1,
|
|
.trigger = {
|
|
SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
|
|
.dpcm_capture = 1,
|
|
.ops = &kabylake_rt5660_fe_ops,
|
|
},
|
|
[KBL_DPCM_AUDIO_HDMI1_PB] = {
|
|
.name = "Kbl HDMI Port1",
|
|
.stream_name = "Hdmi1",
|
|
.cpu_dai_name = "HDMI1 Pin",
|
|
.codec_name = "snd-soc-dummy",
|
|
.codec_dai_name = "snd-soc-dummy-dai",
|
|
.platform_name = "0000:00:1f.3",
|
|
.dpcm_playback = 1,
|
|
.init = NULL,
|
|
.trigger = {
|
|
SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
|
|
.nonatomic = 1,
|
|
.dynamic = 1,
|
|
},
|
|
[KBL_DPCM_AUDIO_HDMI2_PB] = {
|
|
.name = "Kbl HDMI Port2",
|
|
.stream_name = "Hdmi2",
|
|
.cpu_dai_name = "HDMI2 Pin",
|
|
.codec_name = "snd-soc-dummy",
|
|
.codec_dai_name = "snd-soc-dummy-dai",
|
|
.platform_name = "0000:00:1f.3",
|
|
.dpcm_playback = 1,
|
|
.init = NULL,
|
|
.trigger = {
|
|
SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
|
|
.nonatomic = 1,
|
|
.dynamic = 1,
|
|
},
|
|
[KBL_DPCM_AUDIO_HDMI3_PB] = {
|
|
.name = "Kbl HDMI Port3",
|
|
.stream_name = "Hdmi3",
|
|
.cpu_dai_name = "HDMI3 Pin",
|
|
.codec_name = "snd-soc-dummy",
|
|
.codec_dai_name = "snd-soc-dummy-dai",
|
|
.platform_name = "0000:00:1f.3",
|
|
.trigger = {
|
|
SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
|
|
.dpcm_playback = 1,
|
|
.init = NULL,
|
|
.nonatomic = 1,
|
|
.dynamic = 1,
|
|
},
|
|
|
|
/* Back End DAI links */
|
|
{
|
|
/* SSP0 - Codec */
|
|
.name = "SSP0-Codec",
|
|
.id = 0,
|
|
.cpu_dai_name = "SSP0 Pin",
|
|
.platform_name = "0000:00:1f.3",
|
|
.no_pcm = 1,
|
|
.codec_name = "i2c-10EC3277:00",
|
|
.codec_dai_name = KBL_RT5660_CODEC_DAI,
|
|
.init = kabylake_rt5660_codec_init,
|
|
.dai_fmt = SND_SOC_DAIFMT_I2S |
|
|
SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBS_CFS,
|
|
.ignore_pmdown_time = 1,
|
|
.be_hw_params_fixup = kabylake_ssp0_fixup,
|
|
.ops = &kabylake_rt5660_ops,
|
|
.dpcm_playback = 1,
|
|
.dpcm_capture = 1,
|
|
},
|
|
{
|
|
.name = "iDisp1",
|
|
.id = 1,
|
|
.cpu_dai_name = "iDisp1 Pin",
|
|
.codec_name = "ehdaudio0D2",
|
|
.codec_dai_name = "intel-hdmi-hifi1",
|
|
.platform_name = "0000:00:1f.3",
|
|
.dpcm_playback = 1,
|
|
.init = kabylake_hdmi1_init,
|
|
.no_pcm = 1,
|
|
},
|
|
{
|
|
.name = "iDisp2",
|
|
.id = 2,
|
|
.cpu_dai_name = "iDisp2 Pin",
|
|
.codec_name = "ehdaudio0D2",
|
|
.codec_dai_name = "intel-hdmi-hifi2",
|
|
.platform_name = "0000:00:1f.3",
|
|
.init = kabylake_hdmi2_init,
|
|
.dpcm_playback = 1,
|
|
.no_pcm = 1,
|
|
},
|
|
{
|
|
.name = "iDisp3",
|
|
.id = 3,
|
|
.cpu_dai_name = "iDisp3 Pin",
|
|
.codec_name = "ehdaudio0D2",
|
|
.codec_dai_name = "intel-hdmi-hifi3",
|
|
.platform_name = "0000:00:1f.3",
|
|
.init = kabylake_hdmi3_init,
|
|
.dpcm_playback = 1,
|
|
.no_pcm = 1,
|
|
},
|
|
};
|
|
|
|
|
|
#define NAME_SIZE 32
|
|
static int kabylake_card_late_probe(struct snd_soc_card *card)
|
|
{
|
|
struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(card);
|
|
struct kbl_hdmi_pcm *pcm;
|
|
struct snd_soc_component *component = NULL;
|
|
int err, i = 0;
|
|
char jack_name[NAME_SIZE];
|
|
|
|
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, &skylake_hdmi[i],
|
|
NULL, 0);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
|
|
&skylake_hdmi[i]);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
i++;
|
|
|
|
}
|
|
|
|
if (!component)
|
|
return -EINVAL;
|
|
|
|
return hdac_hdmi_jack_port_init(component, &card->dapm);
|
|
}
|
|
|
|
/* kabylake audio machine driver for rt5660 */
|
|
static struct snd_soc_card kabylake_audio_card_rt5660 = {
|
|
.name = "kblrt5660",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = kabylake_rt5660_dais,
|
|
.num_links = ARRAY_SIZE(kabylake_rt5660_dais),
|
|
.controls = kabylake_rt5660_controls,
|
|
.num_controls = ARRAY_SIZE(kabylake_rt5660_controls),
|
|
.dapm_widgets = kabylake_rt5660_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(kabylake_rt5660_widgets),
|
|
.dapm_routes = kabylake_rt5660_map,
|
|
.num_dapm_routes = ARRAY_SIZE(kabylake_rt5660_map),
|
|
.fully_routed = true,
|
|
.late_probe = kabylake_card_late_probe,
|
|
};
|
|
|
|
static int kabylake_audio_probe(struct platform_device *pdev)
|
|
{
|
|
struct kbl_codec_private *ctx;
|
|
|
|
ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
|
|
if (!ctx)
|
|
return -ENOMEM;
|
|
|
|
INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
|
|
|
|
kabylake_audio_card =
|
|
(struct snd_soc_card *)pdev->id_entry->driver_data;
|
|
|
|
kabylake_audio_card->dev = &pdev->dev;
|
|
snd_soc_card_set_drvdata(kabylake_audio_card, ctx);
|
|
return devm_snd_soc_register_card(&pdev->dev, kabylake_audio_card);
|
|
}
|
|
|
|
static const struct platform_device_id kbl_board_ids[] = {
|
|
{
|
|
.name = "kbl_rt5660",
|
|
.driver_data =
|
|
(kernel_ulong_t)&kabylake_audio_card_rt5660,
|
|
},
|
|
{ }
|
|
};
|
|
|
|
static struct platform_driver kabylake_audio = {
|
|
.probe = kabylake_audio_probe,
|
|
.driver = {
|
|
.name = "kbl_rt5660",
|
|
.pm = &snd_soc_pm_ops,
|
|
},
|
|
.id_table = kbl_board_ids,
|
|
};
|
|
|
|
module_platform_driver(kabylake_audio)
|
|
|
|
/* Module information */
|
|
MODULE_DESCRIPTION("Audio Machine driver-RT5660 in I2S mode");
|
|
MODULE_AUTHOR("Hui Wang <hui.wang@canonical.com>");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_ALIAS("platform:kbl_rt5660");
|