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firmware/br-ext-chip-allwinner/board/v83x/kernel/patches/00000-sound_soc_sunxi_sunxi...

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diff -drupN a/sound/soc/sunxi/sunxi-snddaudio.c b/sound/soc/sunxi/sunxi-snddaudio.c
--- a/sound/soc/sunxi/sunxi-snddaudio.c 1970-01-01 03:00:00.000000000 +0300
+++ b/sound/soc/sunxi/sunxi-snddaudio.c 2022-06-12 05:28:14.000000000 +0300
@@ -0,0 +1,635 @@
+/*
+ * sound\soc\sunxi\sunxi-snddaudio.c
+ * (C) Copyright 2014-2018
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ * Wolfgang Huang <huangjinhui@allwinnertech.com>
+ * yumingfeng <yumingfeng@allwinnertech.com>
+ *
+ * some simple description for this code
+ *
+ * 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.
+ *
+ */
+#define DEBUG
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-dapm.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/debugfs.h>
+#ifdef CONFIG_SND_SUNXI_MAD
+#include "sunxi-mad.h"
+#endif
+#include "sunxi-snddaudio.h"
+
+static atomic_t daudio_count = ATOMIC_INIT(-1);
+
+static int sunxi_snddaudio_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;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_card *card = rtd->card;
+ unsigned int freq, clk_div;
+ int ret;
+#ifdef USE_ASOC_FMT_SETTING
+ struct sunxi_snddaudio_priv *snddaudio_priv =
+ snd_soc_card_get_drvdata(card);
+ struct platform_data *pdata = &(snddaudio_priv->pdata);
+#endif
+
+ switch (params_rate(params)) {
+ case 8000:
+ case 16000:
+ case 32000:
+ case 64000:
+ case 12000:
+ case 24000:
+ case 48000:
+ case 96000:
+ case 192000:
+#if defined(CONFIG_AHUB_FREQ_REQ)
+ freq = 98304000;
+#else
+ freq = 24576000;
+#endif
+ break;
+ case 11025:
+ case 22050:
+ case 44100:
+ case 88200:
+ case 176400:
+#if defined(CONFIG_AHUB_FREQ_REQ)
+ freq = 90316800;
+#else
+ freq = 22579200;
+#endif
+ break;
+ default:
+ dev_err(card->dev, "unsupport params rate:%d\n", freq);
+ return -EINVAL;
+ }
+
+ /* set platform clk source freq and set the mode as daudio or pcm */
+ ret = snd_soc_dai_set_sysclk(cpu_dai, 0, freq, 0);
+ if (ret < 0) {
+ dev_warn(card->dev, "cpu_dai set sysclk failed\n");
+ return ret;
+ }
+
+ /* set codec clk source freq and set the mode as daudio or pcm */
+ ret = snd_soc_dai_set_sysclk(codec_dai, 0, freq, 0);
+ if (ret < 0)
+ dev_warn(card->dev, "codec_dai set sysclk failed\n");
+
+ ret = snd_soc_dai_set_pll(codec_dai, 0, 0, freq, freq);
+ if (ret < 0)
+ dev_warn(card->dev, "codec_dai set set_pll failed.\n");
+
+ /*
+ * SND_SOC_DAIFMT_I2S
+ * SND_SOC_DAIFMT_NB_NF
+ * SND_SOC_DAIFMT_CBS_CFS
+ */
+#ifdef USE_ASOC_FMT_SETTING
+ /* set codec dai fmt */
+ ret = snd_soc_dai_set_fmt(codec_dai, pdata->audio_format
+ | (pdata->signal_inversion << SND_SOC_DAIFMT_SIG_SHIFT)
+ | (pdata->daudio_master << SND_SOC_DAIFMT_MASTER_SHIFT));
+ if (ret < 0)
+ dev_warn(card->dev, "codec dai set fmt failed\n");
+
+ /* set cpu dai fmt */
+ ret = snd_soc_dai_set_fmt(cpu_dai, pdata->audio_format
+ | (pdata->signal_inversion << SND_SOC_DAIFMT_SIG_SHIFT)
+ | (pdata->daudio_master << SND_SOC_DAIFMT_MASTER_SHIFT));
+ if (ret < 0)
+ dev_warn(card->dev, "cpu dai set fmt failed\n");
+#else
+ /* set codec dai fmt */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ dev_warn(card->dev, "codec dai set fmt failed\n");
+#endif
+
+ /* set system clk div */
+ clk_div = freq / params_rate(params);
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, 0, clk_div);
+ if (ret < 0) {
+ dev_warn(card->dev, "cpu_dai set clkdiv failed\n");
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_clkdiv(codec_dai, 0, clk_div);
+ if (ret < 0)
+ dev_warn(card->dev, "codec_dai set clkdiv failed\n");
+
+ return 0;
+}
+
+#ifdef CONFIG_SND_SUNXI_MAD
+static int sunxi_snddaudio_mad_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct sunxi_snddaudio_priv *snddaudio_priv =
+ snd_soc_card_get_drvdata(rtd->card);
+
+ snddaudio_priv->mad_priv.mad_bind = 0;
+ snddaudio_priv->mad_priv.lpsd_chan_sel = 0;
+ snddaudio_priv->mad_priv.mad_standby_chan_sel = 1;
+
+ return 0;
+}
+#endif
+
+static int sunxi_snddaudio_init(struct snd_soc_pcm_runtime *rtd)
+{
+#ifdef CONFIG_SND_SUNXI_MAD
+ sunxi_snddaudio_mad_init(rtd);
+#endif
+
+ return 0;
+}
+
+/* enable the snddaudio suspend */
+#ifdef CONFIG_SND_SUNXI_MAD
+static int sunxi_snddaudio_mad_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct sunxi_snddaudio_priv *snddaudio_priv =
+ snd_soc_card_get_drvdata(rtd->card);
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+ if (snddaudio_priv->mad_priv.mad_bind == 1)
+ rtd->dai_link->ignore_suspend = 1;
+ }
+
+ return 0;
+}
+#endif
+
+static int sunxi_snddaudio_startup(struct snd_pcm_substream *substream)
+{
+#ifdef CONFIG_SND_SUNXI_MAD
+ sunxi_snddaudio_mad_startup(substream);
+#endif
+ return 0;
+}
+
+/* disable the snddaudio suspend */
+#ifdef CONFIG_SND_SUNXI_MAD
+static void sunxi_snddaudio_mad_shutdown(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct sunxi_snddaudio_priv *snddaudio_priv =
+ snd_soc_card_get_drvdata(rtd->card);
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+ if (snddaudio_priv->mad_priv.mad_bind == 1)
+ rtd->dai_link->ignore_suspend = 0;
+ }
+}
+#endif
+
+static void sunxi_snddaudio_shutdown(struct snd_pcm_substream *substream)
+{
+#ifdef CONFIG_SND_SUNXI_MAD
+ sunxi_snddaudio_mad_shutdown(substream);
+#endif
+}
+
+#ifdef CONFIG_SND_SUNXI_MAD
+/* mad_bind config*/
+static int sunxi_snddaudio_set_mad_bind(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+ struct sunxi_snddaudio_priv *snddaudio_priv =
+ snd_soc_card_get_drvdata(card);
+
+ snddaudio_priv->mad_priv.mad_bind = ucontrol->value.integer.value[0];
+
+ return 0;
+}
+
+static int sunxi_snddaudio_get_mad_bind(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+ struct sunxi_snddaudio_priv *snddaudio_priv =
+ snd_soc_card_get_drvdata(card);
+
+ ucontrol->value.integer.value[0] = snddaudio_priv->mad_priv.mad_bind;
+
+ return 0;
+}
+
+static const char *mad_bind_function[] = {"mad_unbind", "mad_bind"};
+
+static const struct soc_enum mad_bind_enum[] = {
+ SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(mad_bind_function),
+ mad_bind_function),
+};
+
+/*lpsd channel sel*/
+static int sunxi_snddaudio_set_lpsd_chan(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+ struct sunxi_snddaudio_priv *snddaudio_priv =
+ snd_soc_card_get_drvdata(card);
+ struct sunxi_mad_priv *mad_priv = &(snddaudio_priv->mad_priv);
+
+ mad_priv->lpsd_chan_sel = ucontrol->value.integer.value[0];
+
+ return 0;
+}
+
+static int sunxi_snddaudio_get_lpsd_chan(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+ struct sunxi_snddaudio_priv *snddaudio_priv =
+ snd_soc_card_get_drvdata(card);
+ struct sunxi_mad_priv *mad_priv = &(snddaudio_priv->mad_priv);
+
+ ucontrol->value.integer.value[0] = mad_priv->lpsd_chan_sel;
+
+ return 0;
+}
+
+static const char *lpsd_chan_sel_function[] = {"0th_chan", "1st_chan", "2nd_chan",
+ "3rd_chan", "4th_chan", "5th_chan", "6th_chan", "7th_chan", "8th_chan"};
+
+static const struct soc_enum lpsd_chan_sel_enum[] = {
+ SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(lpsd_chan_sel_function),
+ lpsd_chan_sel_function),
+};
+
+/*mad_standby channel sel*/
+static int sunxi_snddaudio_set_mad_standby_chan(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+ struct sunxi_snddaudio_priv *snddaudio_priv =
+ snd_soc_card_get_drvdata(card);
+ struct sunxi_mad_priv *mad_priv = &(snddaudio_priv->mad_priv);
+
+ mad_priv->mad_standby_chan_sel = ucontrol->value.integer.value[0];
+ sunxi_mad_standby_chan_sel(mad_priv->mad_standby_chan_sel);
+
+ return 0;
+}
+
+static int sunxi_snddaudio_get_mad_standby_chan(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+ struct sunxi_snddaudio_priv *snddaudio_priv =
+ snd_soc_card_get_drvdata(card);
+ struct sunxi_mad_priv *mad_priv = &(snddaudio_priv->mad_priv);
+
+ ucontrol->value.integer.value[0] = mad_priv->mad_standby_chan_sel;
+
+ return 0;
+}
+
+static const char *mad_standby_chan_sel_function[] = {
+ "Zero_chan", "Two_chan", "Four_chan"};
+
+static const struct soc_enum mad_standby_chan_sel_enum[] = {
+ SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(mad_standby_chan_sel_function),
+ mad_standby_chan_sel_function),
+};
+
+/* daudio machine kcontrols */
+static const struct snd_kcontrol_new sunxi_snddaudio_controls[] = {
+ SOC_ENUM_EXT("daudio bind mad Function", mad_bind_enum[0],
+ sunxi_snddaudio_get_mad_bind, sunxi_snddaudio_set_mad_bind),
+ SOC_ENUM_EXT("lpsd channel sel Function", lpsd_chan_sel_enum[0],
+ sunxi_snddaudio_get_lpsd_chan, sunxi_snddaudio_set_lpsd_chan),
+ SOC_ENUM_EXT("mad_standby channel sel Function",
+ mad_standby_chan_sel_enum[0],
+ sunxi_snddaudio_get_mad_standby_chan,
+ sunxi_snddaudio_set_mad_standby_chan),
+};
+#endif
+
+static struct snd_soc_ops sunxi_snddaudio_ops = {
+ .startup = sunxi_snddaudio_startup,
+ .hw_params = sunxi_snddaudio_hw_params,
+ .shutdown = sunxi_snddaudio_shutdown,
+};
+
+static struct snd_soc_dai_link sunxi_snddaudio_dai_link = {
+ .name = "sysvoice",
+ .stream_name = "SUNXI-AUDIO",
+ .cpu_dai_name = "sunxi-daudio",
+ .platform_name = "sunxi-daudio",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .codec_name = "snd-soc-dummy",
+ .init = sunxi_snddaudio_init,
+ .ops = &sunxi_snddaudio_ops,
+};
+
+static struct snd_soc_card snd_soc_sunxi_snddaudio = {
+ .name = "snddaudio",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_SND_SUNXI_MAD
+ .controls = sunxi_snddaudio_controls,
+ .num_controls = ARRAY_SIZE(sunxi_snddaudio_controls),
+#endif
+};
+
+#ifdef CONFIG_SND_SUNXI_SOC_AHUB
+static int sunxi_snddaudio_dev_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct snd_soc_dai_link *dai_link;
+ struct snd_soc_card *card;
+ char name[30] = "snddaudio";
+ unsigned int temp_val;
+ int ret = 0;
+
+ card = devm_kzalloc(&pdev->dev, sizeof(struct snd_soc_card),
+ GFP_KERNEL);
+ if (!card)
+ return -ENOMEM;
+
+ memcpy(card, &snd_soc_sunxi_snddaudio, sizeof(struct snd_soc_card));
+
+ card->dev = &pdev->dev;
+
+ dai_link = devm_kzalloc(&pdev->dev,
+ sizeof(struct snd_soc_dai_link), GFP_KERNEL);
+ if (!dai_link) {
+ ret = -ENOMEM;
+ goto err_kfree_card;
+ }
+
+ memcpy(dai_link, &sunxi_snddaudio_dai_link,
+ sizeof(struct snd_soc_dai_link));
+ card->dai_link = dai_link;
+ card->num_links = 1;
+
+ dai_link->cpu_dai_name = NULL;
+ dai_link->cpu_of_node = of_parse_phandle(np,
+ "sunxi,cpudai-controller", 0);
+ if (!dai_link->cpu_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'sunxi,cpudai-controller' invalid\n");
+ ret = -EINVAL;
+ goto err_kfree_link;
+ }
+ dai_link->platform_name = "snd-soc-dummy";
+
+ ret = of_property_read_string(np, "sunxi,snddaudio-codec",
+ &dai_link->codec_name);
+ /*
+ * As we setting codec & codec_dai in dtb, we just setting the
+ * codec & codec_dai in the dai_link. But if we just not setting,
+ * we then using the snd-soc-dummy as the codec & codec_dai to
+ * construct the snd-card for audio playback & capture.
+ */
+ if (!ret) {
+ ret = of_property_read_string(np, "sunxi,snddaudio-codec-dai",
+ &dai_link->codec_dai_name);
+ if (ret < 0) {
+ dev_err(card->dev, "codec_dai name invaild in dtb\n");
+ ret = -EINVAL;
+ goto err_kfree_link;
+ }
+ sprintf(name+3, "%s", dai_link->codec_name);
+ } else {
+ if (dai_link->cpu_of_node && of_property_read_u32(
+ dai_link->cpu_of_node, "tdm_num", &temp_val) >= 0)
+ sprintf(name+9, "%u", temp_val);
+ else
+ sprintf(name+9, "%d", atomic_inc_return(&daudio_count));
+ }
+
+ card->name = name;
+ dev_info(card->dev, "codec: %s, codec_dai: %s.\n",
+ dai_link->codec_name,
+ dai_link->codec_dai_name);
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(card->dev, "snd_soc_register_card failed\n");
+ goto err_kfree_link;
+ }
+
+ return ret;
+err_kfree_link:
+ devm_kfree(&pdev->dev, card->dai_link);
+err_kfree_card:
+ devm_kfree(&pdev->dev, card);
+ return ret;
+}
+#else
+static int sunxi_snddaudio_dev_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct snd_soc_dai_link *dai_link;
+ struct snd_soc_card *card;
+ struct sunxi_snddaudio_priv *snddaudio_priv;
+ char name[30] = "snddaudio";
+ unsigned int temp_val;
+ int ret = 0;
+
+ snddaudio_priv = devm_kzalloc(&pdev->dev,
+ sizeof(struct sunxi_snddaudio_priv), GFP_KERNEL);
+ if (!snddaudio_priv) {
+ dev_err(&pdev->dev, "Can't malloc the sunxi_snddaudio_priv!\n");
+ return -ENOMEM;
+ }
+
+ snddaudio_priv->card = devm_kzalloc(&pdev->dev,
+ sizeof(struct snd_soc_card),
+ GFP_KERNEL);
+ if (!snddaudio_priv->card) {
+ dev_err(&pdev->dev, "Can't malloc the snd_soc_card!\n");
+ goto err_kfree_sndaudio_priv;
+ }
+
+ card = snddaudio_priv->card;
+ memcpy(card, &snd_soc_sunxi_snddaudio, sizeof(struct snd_soc_card));
+
+ card->dev = &pdev->dev;
+
+ dai_link = devm_kzalloc(&pdev->dev,
+ sizeof(struct snd_soc_dai_link), GFP_KERNEL);
+ if (!dai_link) {
+ ret = -ENOMEM;
+ goto err_kfree_card;
+ }
+ memcpy(dai_link, &sunxi_snddaudio_dai_link,
+ sizeof(struct snd_soc_dai_link));
+ card->dai_link = dai_link;
+ card->num_links = 1;
+
+ ret = of_property_read_u32(np, "audio_format", &temp_val);
+ if (ret < 0) {
+ dev_warn(&pdev->dev, "audio_format config missing or invalid\n");
+ snddaudio_priv->pdata.audio_format = 1;
+ } else {
+ snddaudio_priv->pdata.audio_format = temp_val;
+ }
+
+ ret = of_property_read_u32(np, "signal_inversion", &temp_val);
+ if (ret < 0) {
+ dev_warn(&pdev->dev, "signal_inversion config missing or invalid\n");
+ snddaudio_priv->pdata.signal_inversion = 1;
+ } else {
+ snddaudio_priv->pdata.signal_inversion = temp_val;
+ }
+
+ ret = of_property_read_u32(np, "daudio_master", &temp_val);
+ if (ret < 0) {
+ dev_warn(&pdev->dev, "daudio_master config missing or invalid\n");
+ /*
+ * default setting SND_SOC_DAIFMT_CBS_CFS mode
+ * codec clk & FRM slave
+ */
+ snddaudio_priv->pdata.daudio_master = 4;
+ } else {
+ snddaudio_priv->pdata.daudio_master = temp_val;
+ }
+
+ dai_link->cpu_dai_name = NULL;
+ dai_link->cpu_of_node = of_parse_phandle(np,
+ "sunxi,daudio0-controller", 0);
+ if (dai_link->cpu_of_node)
+ goto cpu_node_find;
+
+ dai_link->cpu_of_node = of_parse_phandle(np,
+ "sunxi,daudio1-controller", 0);
+ if (dai_link->cpu_of_node)
+ goto cpu_node_find;
+
+ dai_link->cpu_of_node = of_parse_phandle(np,
+ "sunxi,daudio-controller", 0);
+ if (dai_link->cpu_of_node)
+ goto cpu_node_find;
+
+ dev_err(card->dev, "Property 'sunxi,daudio-controller' missing\n");
+
+ goto err_kfree_link;
+
+cpu_node_find:
+ dai_link->cpu_dai_name = NULL;
+ dai_link->platform_name = NULL;
+ dai_link->platform_of_node =
+ dai_link->cpu_of_node;
+
+ ret = of_property_read_string(np, "sunxi,snddaudio-codec",
+ &dai_link->codec_name);
+ /*
+ * As we setting codec & codec_dai in dtb, we just setting the
+ * codec & codec_dai in the dai_link. But if we just not setting,
+ * we then using the snd-soc-dummy as the codec & codec_dai to
+ * construct the snd-card for audio playback & capture.
+ */
+ if (!ret) {
+ ret = of_property_read_string(np, "sunxi,snddaudio-codec-dai",
+ &dai_link->codec_dai_name);
+ if (ret < 0) {
+ dev_err(card->dev, "codec_dai name invaild in dtb\n");
+ ret = -EINVAL;
+ goto err_kfree_link;
+ }
+ sprintf(name+3, "%s", dai_link->codec_name);
+ } else {
+ if (dai_link->cpu_of_node && of_property_read_u32(
+ dai_link->cpu_of_node, "tdm_num", &temp_val) >= 0)
+ sprintf(name+9, "%u", temp_val);
+ else
+ sprintf(name+9, "%d", atomic_inc_return(&daudio_count));
+ }
+
+ card->name = name;
+ dev_info(card->dev, "codec: %s, codec_dai: %s.\n",
+ dai_link->codec_name,
+ dai_link->codec_dai_name);
+
+#ifdef CONFIG_SND_SUNXI_MAD
+ snddaudio_priv->mad_priv.mad_bind = 0;
+#endif
+
+ snd_soc_card_set_drvdata(card, snddaudio_priv);
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(card->dev, "snd_soc_register_card failed\n");
+ goto err_kfree_link;
+ }
+
+ return ret;
+
+err_kfree_link:
+ devm_kfree(&pdev->dev, card->dai_link);
+err_kfree_card:
+ devm_kfree(&pdev->dev, card);
+err_kfree_sndaudio_priv:
+ devm_kfree(&pdev->dev, snddaudio_priv);
+ return ret;
+}
+#endif
+
+static int sunxi_snddaudio_dev_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct sunxi_snddaudio_priv *snddaudio_priv;
+
+ snddaudio_priv = snd_soc_card_get_drvdata(card);
+
+ snd_soc_unregister_card(card);
+ devm_kfree(&pdev->dev, card->dai_link);
+ devm_kfree(&pdev->dev, card);
+ devm_kfree(&pdev->dev, snddaudio_priv);
+
+ return 0;
+}
+
+static const struct of_device_id sunxi_snddaudio_of_match[] = {
+ { .compatible = "allwinner,sunxi-daudio0-machine", },
+ { .compatible = "allwinner,sunxi-daudio1-machine", },
+ { .compatible = "allwinner,sunxi-daudio2-machine", },
+ { .compatible = "allwinner,sunxi-daudio3-machine", },
+ {},
+};
+
+static struct platform_driver sunxi_snddaudio_driver = {
+ .driver = {
+ .name = "snddaudio",
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ .of_match_table = sunxi_snddaudio_of_match,
+ },
+ .probe = sunxi_snddaudio_dev_probe,
+ .remove = sunxi_snddaudio_dev_remove,
+};
+
+static int __init sunxi_snddaudio_driver_init(void)
+{
+ return platform_driver_register(&sunxi_snddaudio_driver);
+}
+late_initcall(sunxi_snddaudio_driver_init);
+
+static void __exit sunxi_snddaudio_driver_exit(void)
+{
+ platform_driver_unregister(&sunxi_snddaudio_driver);
+}
+module_exit(sunxi_snddaudio_driver_exit);
+
+MODULE_AUTHOR("Wolfgang Huang");
+MODULE_DESCRIPTION("SUNXI snddaudio ALSA SoC Audio Card Driver");
+MODULE_LICENSE("GPL");
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