1 files changed, 613 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/kbl_da7219_max98357a.c b/sound/soc/intel/boards/kbl_da7219_max98357a.c
new file mode 100644
index 000000000000..e84baafd5f63
--- /dev/null
+++ b/sound/soc/intel/boards/kbl_da7219_max98357a.c
@@ -0,0 +1,613 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright(c) 2017-18 Intel Corporation.
+
+/*
+ * Intel Kabylake I2S Machine Driver with MAX98357A & DA7219 Codecs
+ *
+ * Modified from:
+ *   Intel Kabylake I2S Machine driver supporting MAXIM98927 and
+ *   RT5663 codecs
+ */
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include "../../codecs/da7219.h"
+#include "../../codecs/hdac_hdmi.h"
+#include "../skylake/skl.h"
+#include "../../codecs/da7219-aad.h"
+
+#define KBL_DIALOG_CODEC_DAI "da7219-hifi"
+#define KBL_MAXIM_CODEC_DAI "HiFi"
+#define MAXIM_DEV0_NAME "MX98357A:00"
+#define DUAL_CHANNEL 2
+#define QUAD_CHANNEL 4
+
+static struct snd_soc_card *kabylake_audio_card;
+static struct snd_soc_jack skylake_hdmi[3];
+
+struct kbl_hdmi_pcm {
+	struct list_head head;
+	struct snd_soc_dai *codec_dai;
+	int device;
+};
+
+struct kbl_codec_private {
+	struct snd_soc_jack kabylake_headset;
+	struct list_head hdmi_pcm_list;
+};
+
+enum {
+	KBL_DPCM_AUDIO_PB = 0,
+	KBL_DPCM_AUDIO_CP,
+	KBL_DPCM_AUDIO_DMIC_CP,
+	KBL_DPCM_AUDIO_HDMI1_PB,
+	KBL_DPCM_AUDIO_HDMI2_PB,
+	KBL_DPCM_AUDIO_HDMI3_PB,
+};
+
+static int platform_clock_control(struct snd_soc_dapm_widget *w,
+					struct snd_kcontrol *k, int  event)
+{
+	struct snd_soc_dapm_context *dapm = w->dapm;
+	struct snd_soc_card *card = dapm->card;
+	struct snd_soc_dai *codec_dai;
+	int ret = 0;
+
+	codec_dai = snd_soc_card_get_codec_dai(card, KBL_DIALOG_CODEC_DAI);
+	if (!codec_dai) {
+		dev_err(card->dev, "Codec dai not found; Unable to set/unset codec pll\n");
+		return -EIO;
+	}
+
+	/* Configure sysclk for codec */
+	ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, 24576000,
+				     SND_SOC_CLOCK_IN);
+	if (ret) {
+		dev_err(card->dev, "can't set codec sysclk configuration\n");
+		return ret;
+	}
+
+	if (SND_SOC_DAPM_EVENT_OFF(event)) {
+		ret = snd_soc_dai_set_pll(codec_dai, 0,
+				     DA7219_SYSCLK_MCLK, 0, 0);
+		if (ret)
+			dev_err(card->dev, "failed to stop PLL: %d\n", ret);
+	} else if (SND_SOC_DAPM_EVENT_ON(event)) {
+		ret = snd_soc_dai_set_pll(codec_dai, 0,	DA7219_SYSCLK_PLL_SRM,
+				     0, DA7219_PLL_FREQ_OUT_98304);
+		if (ret)
+			dev_err(card->dev, "failed to start PLL: %d\n", ret);
+	}
+
+	return ret;
+}
+
+static const struct snd_kcontrol_new kabylake_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Spk"),
+};
+
+static const struct snd_soc_dapm_widget kabylake_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_SPK("Spk", NULL),
+	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
+	SND_SOC_DAPM_SPK("DP", NULL),
+	SND_SOC_DAPM_SPK("HDMI", NULL),
+	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
+			platform_clock_control, SND_SOC_DAPM_PRE_PMU |
+			SND_SOC_DAPM_POST_PMD),
+};
+
+static const struct snd_soc_dapm_route kabylake_map[] = {
+	{ "Headphone Jack", NULL, "HPL" },
+	{ "Headphone Jack", NULL, "HPR" },
+
+	/* speaker */
+	{ "Spk", NULL, "Speaker" },
+
+	/* other jacks */
+	{ "MIC", NULL, "Headset Mic" },
+	{ "DMic", NULL, "SoC DMIC" },
+
+	{ "HDMI", NULL, "hif5 Output" },
+	{ "DP", NULL, "hif6 Output" },
+
+	/* CODEC BE connections */
+	{ "HiFi Playback", NULL, "ssp0 Tx" },
+	{ "ssp0 Tx", NULL, "codec0_out" },
+
+	{ "Playback", NULL, "ssp1 Tx" },
+	{ "ssp1 Tx", NULL, "codec1_out" },
+
+	{ "codec0_in", NULL, "ssp1 Rx" },
+	{ "ssp1 Rx", NULL, "Capture" },
+
+	/* DMIC */
+	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
+	{ "DMIC01 Rx", NULL, "DMIC AIF" },
+
+	{ "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"},
+
+	{ "Headphone Jack", NULL, "Platform Clock" },
+	{ "Headset Mic", NULL, "Platform Clock" },
+};
+
+static int kabylake_ssp_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 SSP to 24 bit */
+	snd_mask_none(fmt);
+	snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);
+
+	return 0;
+}
+
+static int kabylake_da7219_codec_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_component *component = rtd->codec_dai->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(kabylake_audio_card, "Headset Jack",
+			SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+			SND_JACK_BTN_2 | SND_JACK_BTN_3 | SND_JACK_LINEOUT,
+			&ctx->kabylake_headset, NULL, 0);
+	if (ret) {
+		dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
+		return ret;
+	}
+
+	jack = &ctx->kabylake_headset;
+
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA);
+	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);
+	da7219_aad_jack_det(component, &ctx->kabylake_headset);
+
+	ret = snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
+	if (ret)
+		dev_err(rtd->dev, "SoC DMIC - Ignore suspend failed %d\n", ret);
+
+	return ret;
+}
+
+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_da7219_fe_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dapm_context *dapm;
+	struct snd_soc_component *component = rtd->cpu_dai->component;
+
+	dapm = snd_soc_component_get_dapm(component);
+	snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
+
+	return 0;
+}
+
+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 unsigned int channels_quad[] = {
+	QUAD_CHANNEL,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_channels_quad = {
+	.count = ARRAY_SIZE(channels_quad),
+	.list = channels_quad,
+	.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_da7219_fe_ops = {
+	.startup = kbl_fe_startup,
+};
+
+static int kabylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
+		struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *channels = hw_param_interval(params,
+				SNDRV_PCM_HW_PARAM_CHANNELS);
+
+	/*
+	 * set BE channel constraint as user FE channels
+	 */
+
+	if (params_channels(params) == 2)
+		channels->min = channels->max = 2;
+	else
+		channels->min = channels->max = 4;
+
+	return 0;
+}
+
+static int kabylake_dmic_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	runtime->hw.channels_min = runtime->hw.channels_max = QUAD_CHANNEL;
+	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+			&constraints_channels_quad);
+
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+}
+
+static struct snd_soc_ops kabylake_dmic_ops = {
+	.startup = kabylake_dmic_startup,
+};
+
+static const unsigned int rates_16000[] = {
+	16000,
+};
+
+static const struct snd_pcm_hw_constraint_list constraints_16000 = {
+	.count = ARRAY_SIZE(rates_16000),
+	.list  = rates_16000,
+};
+
+static const unsigned int ch_mono[] = {
+	1,
+};
+
+/* kabylake digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link kabylake_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,
+		.init = kabylake_da7219_fe_init,
+		.trigger = {
+			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_playback = 1,
+		.ops = &kabylake_da7219_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,
+	},
+	[KBL_DPCM_AUDIO_DMIC_CP] = {
+		.name = "Kbl Audio DMIC cap",
+		.stream_name = "dmiccap",
+		.cpu_dai_name = "DMIC Pin",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.platform_name = "0000:00:1f.3",
+		.init = NULL,
+		.dpcm_capture = 1,
+		.nonatomic = 1,
+		.dynamic = 1,
+		.ops = &kabylake_dmic_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 = MAXIM_DEV0_NAME,
+		.codec_dai_name = KBL_MAXIM_CODEC_DAI,
+		.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_ssp_fixup,
+		.dpcm_playback = 1,
+	},
+	{
+		/* SSP1 - Codec */
+		.name = "SSP1-Codec",
+		.id = 1,
+		.cpu_dai_name = "SSP1 Pin",
+		.platform_name = "0000:00:1f.3",
+		.no_pcm = 1,
+		.codec_name = "i2c-DLGS7219:00",
+		.codec_dai_name = KBL_DIALOG_CODEC_DAI,
+		.init = kabylake_da7219_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_ssp_fixup,
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+	},
+	{
+		.name = "dmic01",
+		.id = 2,
+		.cpu_dai_name = "DMIC01 Pin",
+		.codec_name = "dmic-codec",
+		.codec_dai_name = "dmic-hifi",
+		.platform_name = "0000:00:1f.3",
+		.be_hw_params_fixup = kabylake_dmic_fixup,
+		.ignore_suspend = 1,
+		.dpcm_capture = 1,
+		.no_pcm = 1,
+	},
+	{
+		.name = "iDisp1",
+		.id = 3,
+		.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 = 4,
+		.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 = 5,
+		.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 SPT + DA7219 */
+static struct snd_soc_card kabylake_audio_card_da7219_m98357a = {
+	.name = "kblda7219max",
+	.owner = THIS_MODULE,
+	.dai_link = kabylake_dais,
+	.num_links = ARRAY_SIZE(kabylake_dais),
+	.controls = kabylake_controls,
+	.num_controls = ARRAY_SIZE(kabylake_controls),
+	.dapm_widgets = kabylake_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(kabylake_widgets),
+	.dapm_routes = kabylake_map,
+	.num_dapm_routes = ARRAY_SIZE(kabylake_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_ATOMIC);
+	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_da7219_max98357a",
+		.driver_data =
+			(kernel_ulong_t)&kabylake_audio_card_da7219_m98357a,
+	},
+	{ }
+};
+
+static struct platform_driver kabylake_audio = {
+	.probe = kabylake_audio_probe,
+	.driver = {
+		.name = "kbl_da7219_max98357a",
+		.pm = &snd_soc_pm_ops,
+	},
+	.id_table = kbl_board_ids,
+};
+
+module_platform_driver(kabylake_audio)
+
+/* Module information */
+MODULE_DESCRIPTION("Audio Machine driver-DA7219 & MAX98357A in I2S mode");
+MODULE_AUTHOR("Naveen Manohar <naveen.m@intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:kbl_da7219_max98357a");