[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/soc/codecs/ad73311.c b/src/kernel/linux/v4.14/sound/soc/codecs/ad73311.c
new file mode 100644
index 0000000..d8d86a0
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/soc/codecs/ad73311.c
@@ -0,0 +1,91 @@
+/*
+ * ad73311.c  --  ALSA Soc AD73311 codec support
+ *
+ * Copyright:	Analog Device Inc.
+ * Author:	Cliff Cai <cliff.cai@analog.com>
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include "ad73311.h"
+
+static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("VINP"),
+SND_SOC_DAPM_INPUT("VINN"),
+SND_SOC_DAPM_OUTPUT("VOUTN"),
+SND_SOC_DAPM_OUTPUT("VOUTP"),
+};
+
+static const struct snd_soc_dapm_route ad73311_dapm_routes[] = {
+	{ "Capture", NULL, "VINP" },
+	{ "Capture", NULL, "VINN" },
+
+	{ "VOUTN", NULL, "Playback" },
+	{ "VOUTP", NULL, "Playback" },
+};
+
+static struct snd_soc_dai_driver ad73311_dai = {
+	.name = "ad73311-hifi",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 1,
+		.channels_max = 1,
+		.rates = SNDRV_PCM_RATE_8000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE, },
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 1,
+		.rates = SNDRV_PCM_RATE_8000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE, },
+};
+
+static const struct snd_soc_codec_driver soc_codec_dev_ad73311 = {
+	.component_driver = {
+		.dapm_widgets		= ad73311_dapm_widgets,
+		.num_dapm_widgets	= ARRAY_SIZE(ad73311_dapm_widgets),
+		.dapm_routes		= ad73311_dapm_routes,
+		.num_dapm_routes	= ARRAY_SIZE(ad73311_dapm_routes),
+	},
+};
+
+static int ad73311_probe(struct platform_device *pdev)
+{
+	return snd_soc_register_codec(&pdev->dev,
+			&soc_codec_dev_ad73311, &ad73311_dai, 1);
+}
+
+static int ad73311_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_codec(&pdev->dev);
+	return 0;
+}
+
+static struct platform_driver ad73311_codec_driver = {
+	.driver = {
+			.name = "ad73311",
+	},
+
+	.probe = ad73311_probe,
+	.remove = ad73311_remove,
+};
+
+module_platform_driver(ad73311_codec_driver);
+
+MODULE_DESCRIPTION("ASoC ad73311 driver");
+MODULE_AUTHOR("Cliff Cai ");
+MODULE_LICENSE("GPL");