sound/soc/meson/aiu.c - third_party/kernel - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 //
 // Copyright (c) 2020 BayLibre, SAS.
 // Author: Jerome Brunet <jbrunet@baylibre.com>

 #include <linux/bitfield.h>
 #include <linux/clk.h>
 #include <linux/module.h>
 #include <linux/of_platform.h>
 #include <linux/regmap.h>
 #include <linux/reset.h>
 #include <sound/soc.h>
 #include <sound/soc-dai.h>

 #include <dt-bindings/sound/meson-aiu.h>
 #include "aiu.h"
 #include "aiu-fifo.h"

 #define AIU_I2S_MISC_958_SRC_SHIFT 3

 static const char * const aiu_spdif_encode_sel_texts[] = {
 	"SPDIF", "I2S",
 };

 static SOC_ENUM_SINGLE_DECL(aiu_spdif_encode_sel_enum, AIU_I2S_MISC,
 			    AIU_I2S_MISC_958_SRC_SHIFT,
 			    aiu_spdif_encode_sel_texts);

 static const struct snd_kcontrol_new aiu_spdif_encode_mux =
 	SOC_DAPM_ENUM("SPDIF Buffer Src", aiu_spdif_encode_sel_enum);

 static const struct snd_soc_dapm_widget aiu_cpu_dapm_widgets[] = {
 	SND_SOC_DAPM_MUX("SPDIF SRC SEL", SND_SOC_NOPM, 0, 0,
 			 &aiu_spdif_encode_mux),
 };

 static const struct snd_soc_dapm_route aiu_cpu_dapm_routes[] = {
 	{ "I2S Encoder Playback", NULL, "I2S FIFO Playback" },
 	{ "SPDIF SRC SEL", "SPDIF", "SPDIF FIFO Playback" },
 	{ "SPDIF SRC SEL", "I2S", "I2S FIFO Playback" },
 	{ "SPDIF Encoder Playback", NULL, "SPDIF SRC SEL" },
 };

 int aiu_of_xlate_dai_name(struct snd_soc_component *component,
 			  const struct of_phandle_args *args,
 			  const char **dai_name,
 			  unsigned int component_id)
 {
 	struct snd_soc_dai *dai;
 	int id;

 	if (args->args_count != 2)
 		return -EINVAL;

 	if (args->args[0] != component_id)
 		return -EINVAL;

 	id = args->args[1];

 	if (id < 0 || id >= component->num_dai)
 		return -EINVAL;

 	for_each_component_dais(component, dai) {
 		if (id == 0)
 			break;
 		id--;
 	}

 	*dai_name = dai->driver->name;

 	return 0;
 }

 static int aiu_cpu_of_xlate_dai_name(struct snd_soc_component *component,
 				     const struct of_phandle_args *args,
 				     const char **dai_name)
 {
 	return aiu_of_xlate_dai_name(component, args, dai_name, AIU_CPU);
 }

 static int aiu_cpu_component_probe(struct snd_soc_component *component)
 {
 	struct aiu *aiu = snd_soc_component_get_drvdata(component);

 	/* Required for the SPDIF Source control operation */
 	return clk_prepare_enable(aiu->i2s.clks[PCLK].clk);
 }

 static void aiu_cpu_component_remove(struct snd_soc_component *component)
 {
 	struct aiu *aiu = snd_soc_component_get_drvdata(component);

 	clk_disable_unprepare(aiu->i2s.clks[PCLK].clk);
 }

 static const struct snd_soc_component_driver aiu_cpu_component = {
 	.name			= "AIU CPU",
 	.dapm_widgets		= aiu_cpu_dapm_widgets,
 	.num_dapm_widgets	= ARRAY_SIZE(aiu_cpu_dapm_widgets),
 	.dapm_routes		= aiu_cpu_dapm_routes,
 	.num_dapm_routes	= ARRAY_SIZE(aiu_cpu_dapm_routes),
 	.of_xlate_dai_name	= aiu_cpu_of_xlate_dai_name,
 	.pointer		= aiu_fifo_pointer,
 	.probe			= aiu_cpu_component_probe,
 	.remove			= aiu_cpu_component_remove,
 };

 static struct snd_soc_dai_driver aiu_cpu_dai_drv[] = {
 	[CPU_I2S_FIFO] = {
 		.name = "I2S FIFO",
 		.playback = {
 			.stream_name	= "I2S FIFO Playback",
 			.channels_min	= 2,
 			.channels_max	= 8,
 			.rates		= SNDRV_PCM_RATE_CONTINUOUS,
 			.rate_min	= 5512,
 			.rate_max	= 192000,
 			.formats	= AIU_FORMATS,
 		},
 		.ops		= &aiu_fifo_i2s_dai_ops,
 		.pcm_new	= aiu_fifo_pcm_new,
 		.probe		= aiu_fifo_i2s_dai_probe,
 		.remove		= aiu_fifo_dai_remove,
 	},
 	[CPU_SPDIF_FIFO] = {
 		.name = "SPDIF FIFO",
 		.playback = {
 			.stream_name	= "SPDIF FIFO Playback",
 			.channels_min	= 2,
 			.channels_max	= 2,
 			.rates		= SNDRV_PCM_RATE_CONTINUOUS,
 			.rate_min	= 5512,
 			.rate_max	= 192000,
 			.formats	= AIU_FORMATS,
 		},
 		.ops		= &aiu_fifo_spdif_dai_ops,
 		.pcm_new	= aiu_fifo_pcm_new,
 		.probe		= aiu_fifo_spdif_dai_probe,
 		.remove		= aiu_fifo_dai_remove,
 	},
 	[CPU_I2S_ENCODER] = {
 		.name = "I2S Encoder",
 		.playback = {
 			.stream_name = "I2S Encoder Playback",
 			.channels_min = 2,
 			.channels_max = 8,
 			.rates = SNDRV_PCM_RATE_8000_192000,
 			.formats = AIU_FORMATS,
 		},
 		.ops = &aiu_encoder_i2s_dai_ops,
 	},
 	[CPU_SPDIF_ENCODER] = {
 		.name = "SPDIF Encoder",
 		.playback = {
 			.stream_name = "SPDIF Encoder Playback",
 			.channels_min = 2,
 			.channels_max = 2,
 			.rates = (SNDRV_PCM_RATE_32000  |
 				  SNDRV_PCM_RATE_44100  |
 				  SNDRV_PCM_RATE_48000  |
 				  SNDRV_PCM_RATE_88200  |
 				  SNDRV_PCM_RATE_96000  |
 				  SNDRV_PCM_RATE_176400 |
 				  SNDRV_PCM_RATE_192000),
 			.formats = AIU_FORMATS,
 		},
 		.ops = &aiu_encoder_spdif_dai_ops,
 	}
 };

 static const struct regmap_config aiu_regmap_cfg = {
 	.reg_bits	= 32,
 	.val_bits	= 32,
 	.reg_stride	= 4,
 	.max_register	= 0x2ac,
 };

 static int aiu_clk_bulk_get(struct device *dev,
 			    const char * const *ids,
 			    unsigned int num,
 			    struct aiu_interface *interface)
 {
 	struct clk_bulk_data *clks;
 	int i, ret;

 	clks = devm_kcalloc(dev, num, sizeof(*clks), GFP_KERNEL);
 	if (!clks)
 		return -ENOMEM;

 	for (i = 0; i < num; i++)
 		clks[i].id = ids[i];

 	ret = devm_clk_bulk_get(dev, num, clks);
 	if (ret < 0)
 		return ret;

 	interface->clks = clks;
 	interface->clk_num = num;
 	return 0;
 }

 static const char * const aiu_i2s_ids[] = {
 	[PCLK]	= "i2s_pclk",
 	[AOCLK]	= "i2s_aoclk",
 	[MCLK]	= "i2s_mclk",
 	[MIXER]	= "i2s_mixer",
 };

 static const char * const aiu_spdif_ids[] = {
 	[PCLK]	= "spdif_pclk",
 	[AOCLK]	= "spdif_aoclk",
 	[MCLK]	= "spdif_mclk_sel"
 };

 static int aiu_clk_get(struct device *dev)
 {
 	struct aiu *aiu = dev_get_drvdata(dev);
 	int ret;

 	aiu->pclk = devm_clk_get(dev, "pclk");
 	if (IS_ERR(aiu->pclk)) {
 		if (PTR_ERR(aiu->pclk) != -EPROBE_DEFER)
 			dev_err(dev, "Can't get the aiu pclk\n");
 		return PTR_ERR(aiu->pclk);
 	}

 	aiu->spdif_mclk = devm_clk_get(dev, "spdif_mclk");
 	if (IS_ERR(aiu->spdif_mclk)) {
 		if (PTR_ERR(aiu->spdif_mclk) != -EPROBE_DEFER)
 			dev_err(dev, "Can't get the aiu spdif master clock\n");
 		return PTR_ERR(aiu->spdif_mclk);
 	}

 	ret = aiu_clk_bulk_get(dev, aiu_i2s_ids, ARRAY_SIZE(aiu_i2s_ids),
 			       &aiu->i2s);
 	if (ret) {
 		if (ret != -EPROBE_DEFER)
 			dev_err(dev, "Can't get the i2s clocks\n");
 		return ret;
 	}

 	ret = aiu_clk_bulk_get(dev, aiu_spdif_ids, ARRAY_SIZE(aiu_spdif_ids),
 			       &aiu->spdif);
 	if (ret) {
 		if (ret != -EPROBE_DEFER)
 			dev_err(dev, "Can't get the spdif clocks\n");
 		return ret;
 	}

 	ret = clk_prepare_enable(aiu->pclk);
 	if (ret) {
 		dev_err(dev, "peripheral clock enable failed\n");
 		return ret;
 	}

 	ret = devm_add_action_or_reset(dev,
 				       (void(*)(void *))clk_disable_unprepare,
 				       aiu->pclk);
 	if (ret)
 		dev_err(dev, "failed to add reset action on pclk");

 	return ret;
 }

 static int aiu_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	void __iomem *regs;
 	struct regmap *map;
 	struct aiu *aiu;
 	int ret;

 	aiu = devm_kzalloc(dev, sizeof(*aiu), GFP_KERNEL);
 	if (!aiu)
 		return -ENOMEM;

 	aiu->platform = device_get_match_data(dev);
 	if (!aiu->platform)
 		return -ENODEV;

 	platform_set_drvdata(pdev, aiu);

 	ret = device_reset(dev);
 	if (ret) {
 		if (ret != -EPROBE_DEFER)
 			dev_err(dev, "Failed to reset device\n");
 		return ret;
 	}

 	regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);

 	map = devm_regmap_init_mmio(dev, regs, &aiu_regmap_cfg);
 	if (IS_ERR(map)) {
 		dev_err(dev, "failed to init regmap: %ld\n",
 			PTR_ERR(map));
 		return PTR_ERR(map);
 	}

 	aiu->i2s.irq = platform_get_irq_byname(pdev, "i2s");
 	if (aiu->i2s.irq < 0)
 		return aiu->i2s.irq;

 	aiu->spdif.irq = platform_get_irq_byname(pdev, "spdif");
 	if (aiu->spdif.irq < 0)
 		return aiu->spdif.irq;

 	ret = aiu_clk_get(dev);
 	if (ret)
 		return ret;

 	/* Register the cpu component of the aiu */
 	ret = snd_soc_register_component(dev, &aiu_cpu_component,
 					 aiu_cpu_dai_drv,
 					 ARRAY_SIZE(aiu_cpu_dai_drv));
 	if (ret) {
 		dev_err(dev, "Failed to register cpu component\n");
 		return ret;
 	}

 	/* Register the hdmi codec control component */
 	ret = aiu_hdmi_ctrl_register_component(dev);
 	if (ret) {
 		dev_err(dev, "Failed to register hdmi control component\n");
 		goto err;
 	}

 	/* Register the internal dac control component on gxl */
 	if (aiu->platform->has_acodec) {
 		ret = aiu_acodec_ctrl_register_component(dev);
 		if (ret) {
 			dev_err(dev,
 			    "Failed to register acodec control component\n");
 			goto err;
 		}
 	}

 	return 0;
 err:
 	snd_soc_unregister_component(dev);
 	return ret;
 }

 static int aiu_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_component(&pdev->dev);

 	return 0;
 }

 static const struct aiu_platform_data aiu_gxbb_pdata = {
 	.has_acodec = false,
 	.has_clk_ctrl_more_i2s_div = true,
 };

 static const struct aiu_platform_data aiu_gxl_pdata = {
 	.has_acodec = true,
 	.has_clk_ctrl_more_i2s_div = true,
 };

 static const struct aiu_platform_data aiu_meson8_pdata = {
 	.has_acodec = false,
 	.has_clk_ctrl_more_i2s_div = false,
 };

 static const struct of_device_id aiu_of_match[] = {
 	{ .compatible = "amlogic,aiu-gxbb", .data = &aiu_gxbb_pdata },
 	{ .compatible = "amlogic,aiu-gxl", .data = &aiu_gxl_pdata },
 	{ .compatible = "amlogic,aiu-meson8", .data = &aiu_meson8_pdata },
 	{ .compatible = "amlogic,aiu-meson8b", .data = &aiu_meson8_pdata },
 	{}
 };
 MODULE_DEVICE_TABLE(of, aiu_of_match);

 static struct platform_driver aiu_pdrv = {
 	.probe = aiu_probe,
 	.remove = aiu_remove,
 	.driver = {
 		.name = "meson-aiu",
 		.of_match_table = aiu_of_match,
 	},
 };
 module_platform_driver(aiu_pdrv);

 MODULE_DESCRIPTION("Meson AIU Driver");
 MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
 MODULE_LICENSE("GPL v2");
	// SPDX-License-Identifier: GPL-2.0
	//
	// Copyright (c) 2020 BayLibre, SAS.
	// Author: Jerome Brunet <jbrunet@baylibre.com>

	#include <linux/bitfield.h>
	#include <linux/clk.h>
	#include <linux/module.h>
	#include <linux/of_platform.h>
	#include <linux/regmap.h>
	#include <linux/reset.h>
	#include <sound/soc.h>
	#include <sound/soc-dai.h>

	#include <dt-bindings/sound/meson-aiu.h>
	#include "aiu.h"
	#include "aiu-fifo.h"

	#define AIU_I2S_MISC_958_SRC_SHIFT 3

	static const char * const aiu_spdif_encode_sel_texts[] = {
	"SPDIF", "I2S",
	};

	static SOC_ENUM_SINGLE_DECL(aiu_spdif_encode_sel_enum, AIU_I2S_MISC,
	AIU_I2S_MISC_958_SRC_SHIFT,
	aiu_spdif_encode_sel_texts);

	static const struct snd_kcontrol_new aiu_spdif_encode_mux =
	SOC_DAPM_ENUM("SPDIF Buffer Src", aiu_spdif_encode_sel_enum);

	static const struct snd_soc_dapm_widget aiu_cpu_dapm_widgets[] = {
	SND_SOC_DAPM_MUX("SPDIF SRC SEL", SND_SOC_NOPM, 0, 0,
	&aiu_spdif_encode_mux),
	};

	static const struct snd_soc_dapm_route aiu_cpu_dapm_routes[] = {
	{ "I2S Encoder Playback", NULL, "I2S FIFO Playback" },
	{ "SPDIF SRC SEL", "SPDIF", "SPDIF FIFO Playback" },
	{ "SPDIF SRC SEL", "I2S", "I2S FIFO Playback" },
	{ "SPDIF Encoder Playback", NULL, "SPDIF SRC SEL" },
	};

	int aiu_of_xlate_dai_name(struct snd_soc_component *component,
	const struct of_phandle_args *args,
	const char **dai_name,
	unsigned int component_id)
	{
	struct snd_soc_dai *dai;
	int id;

	if (args->args_count != 2)
	return -EINVAL;

	if (args->args[0] != component_id)
	return -EINVAL;

	id = args->args[1];

	if (id < 0 \|\| id >= component->num_dai)
	return -EINVAL;

	for_each_component_dais(component, dai) {
	if (id == 0)
	break;
	id--;
	}

	*dai_name = dai->driver->name;

	return 0;
	}

	static int aiu_cpu_of_xlate_dai_name(struct snd_soc_component *component,
	const struct of_phandle_args *args,
	const char **dai_name)
	{
	return aiu_of_xlate_dai_name(component, args, dai_name, AIU_CPU);
	}

	static int aiu_cpu_component_probe(struct snd_soc_component *component)
	{
	struct aiu *aiu = snd_soc_component_get_drvdata(component);

	/* Required for the SPDIF Source control operation */
	return clk_prepare_enable(aiu->i2s.clks[PCLK].clk);
	}

	static void aiu_cpu_component_remove(struct snd_soc_component *component)
	{
	struct aiu *aiu = snd_soc_component_get_drvdata(component);

	clk_disable_unprepare(aiu->i2s.clks[PCLK].clk);
	}

	static const struct snd_soc_component_driver aiu_cpu_component = {
	.name = "AIU CPU",
	.dapm_widgets = aiu_cpu_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(aiu_cpu_dapm_widgets),
	.dapm_routes = aiu_cpu_dapm_routes,
	.num_dapm_routes = ARRAY_SIZE(aiu_cpu_dapm_routes),
	.of_xlate_dai_name = aiu_cpu_of_xlate_dai_name,
	.pointer = aiu_fifo_pointer,
	.probe = aiu_cpu_component_probe,
	.remove = aiu_cpu_component_remove,
	};

	static struct snd_soc_dai_driver aiu_cpu_dai_drv[] = {
	[CPU_I2S_FIFO] = {
	.name = "I2S FIFO",
	.playback = {
	.stream_name = "I2S FIFO Playback",
	.channels_min = 2,
	.channels_max = 8,
	.rates = SNDRV_PCM_RATE_CONTINUOUS,
	.rate_min = 5512,
	.rate_max = 192000,
	.formats = AIU_FORMATS,
	},
	.ops = &aiu_fifo_i2s_dai_ops,
	.pcm_new = aiu_fifo_pcm_new,
	.probe = aiu_fifo_i2s_dai_probe,
	.remove = aiu_fifo_dai_remove,
	},
	[CPU_SPDIF_FIFO] = {
	.name = "SPDIF FIFO",
	.playback = {
	.stream_name = "SPDIF FIFO Playback",
	.channels_min = 2,
	.channels_max = 2,
	.rates = SNDRV_PCM_RATE_CONTINUOUS,
	.rate_min = 5512,
	.rate_max = 192000,
	.formats = AIU_FORMATS,
	},
	.ops = &aiu_fifo_spdif_dai_ops,
	.pcm_new = aiu_fifo_pcm_new,
	.probe = aiu_fifo_spdif_dai_probe,
	.remove = aiu_fifo_dai_remove,
	},
	[CPU_I2S_ENCODER] = {
	.name = "I2S Encoder",
	.playback = {
	.stream_name = "I2S Encoder Playback",
	.channels_min = 2,
	.channels_max = 8,
	.rates = SNDRV_PCM_RATE_8000_192000,
	.formats = AIU_FORMATS,
	},
	.ops = &aiu_encoder_i2s_dai_ops,
	},
	[CPU_SPDIF_ENCODER] = {
	.name = "SPDIF Encoder",
	.playback = {
	.stream_name = "SPDIF Encoder Playback",
	.channels_min = 2,
	.channels_max = 2,
	.rates = (SNDRV_PCM_RATE_32000 \|
	SNDRV_PCM_RATE_44100 \|
	SNDRV_PCM_RATE_48000 \|
	SNDRV_PCM_RATE_88200 \|
	SNDRV_PCM_RATE_96000 \|
	SNDRV_PCM_RATE_176400 \|
	SNDRV_PCM_RATE_192000),
	.formats = AIU_FORMATS,
	},
	.ops = &aiu_encoder_spdif_dai_ops,
	}
	};

	static const struct regmap_config aiu_regmap_cfg = {
	.reg_bits = 32,
	.val_bits = 32,
	.reg_stride = 4,
	.max_register = 0x2ac,
	};

	static int aiu_clk_bulk_get(struct device *dev,
	const char * const *ids,
	unsigned int num,
	struct aiu_interface *interface)
	{
	struct clk_bulk_data *clks;
	int i, ret;

	clks = devm_kcalloc(dev, num, sizeof(*clks), GFP_KERNEL);
	if (!clks)
	return -ENOMEM;

	for (i = 0; i < num; i++)
	clks[i].id = ids[i];

	ret = devm_clk_bulk_get(dev, num, clks);
	if (ret < 0)
	return ret;

	interface->clks = clks;
	interface->clk_num = num;
	return 0;
	}

	static const char * const aiu_i2s_ids[] = {
	[PCLK] = "i2s_pclk",
	[AOCLK] = "i2s_aoclk",
	[MCLK] = "i2s_mclk",
	[MIXER] = "i2s_mixer",
	};

	static const char * const aiu_spdif_ids[] = {
	[PCLK] = "spdif_pclk",
	[AOCLK] = "spdif_aoclk",
	[MCLK] = "spdif_mclk_sel"
	};

	static int aiu_clk_get(struct device *dev)
	{
	struct aiu *aiu = dev_get_drvdata(dev);
	int ret;

	aiu->pclk = devm_clk_get(dev, "pclk");
	if (IS_ERR(aiu->pclk)) {
	if (PTR_ERR(aiu->pclk) != -EPROBE_DEFER)
	dev_err(dev, "Can't get the aiu pclk\n");
	return PTR_ERR(aiu->pclk);
	}

	aiu->spdif_mclk = devm_clk_get(dev, "spdif_mclk");
	if (IS_ERR(aiu->spdif_mclk)) {
	if (PTR_ERR(aiu->spdif_mclk) != -EPROBE_DEFER)
	dev_err(dev, "Can't get the aiu spdif master clock\n");
	return PTR_ERR(aiu->spdif_mclk);
	}

	ret = aiu_clk_bulk_get(dev, aiu_i2s_ids, ARRAY_SIZE(aiu_i2s_ids),
	&aiu->i2s);
	if (ret) {
	if (ret != -EPROBE_DEFER)
	dev_err(dev, "Can't get the i2s clocks\n");
	return ret;
	}

	ret = aiu_clk_bulk_get(dev, aiu_spdif_ids, ARRAY_SIZE(aiu_spdif_ids),
	&aiu->spdif);
	if (ret) {
	if (ret != -EPROBE_DEFER)
	dev_err(dev, "Can't get the spdif clocks\n");
	return ret;
	}

	ret = clk_prepare_enable(aiu->pclk);
	if (ret) {
	dev_err(dev, "peripheral clock enable failed\n");
	return ret;
	}

	ret = devm_add_action_or_reset(dev,
	(void()(void ))clk_disable_unprepare,
	aiu->pclk);
	if (ret)
	dev_err(dev, "failed to add reset action on pclk");

	return ret;
	}

	static int aiu_probe(struct platform_device *pdev)
	{
	struct device *dev = &pdev->dev;
	void __iomem *regs;
	struct regmap *map;
	struct aiu *aiu;
	int ret;

	aiu = devm_kzalloc(dev, sizeof(*aiu), GFP_KERNEL);
	if (!aiu)
	return -ENOMEM;

	aiu->platform = device_get_match_data(dev);
	if (!aiu->platform)
	return -ENODEV;

	platform_set_drvdata(pdev, aiu);

	ret = device_reset(dev);
	if (ret) {
	if (ret != -EPROBE_DEFER)
	dev_err(dev, "Failed to reset device\n");
	return ret;
	}

	regs = devm_platform_ioremap_resource(pdev, 0);
	if (IS_ERR(regs))
	return PTR_ERR(regs);

	map = devm_regmap_init_mmio(dev, regs, &aiu_regmap_cfg);
	if (IS_ERR(map)) {
	dev_err(dev, "failed to init regmap: %ld\n",
	PTR_ERR(map));
	return PTR_ERR(map);
	}

	aiu->i2s.irq = platform_get_irq_byname(pdev, "i2s");
	if (aiu->i2s.irq < 0)
	return aiu->i2s.irq;

	aiu->spdif.irq = platform_get_irq_byname(pdev, "spdif");
	if (aiu->spdif.irq < 0)
	return aiu->spdif.irq;

	ret = aiu_clk_get(dev);
	if (ret)
	return ret;

	/* Register the cpu component of the aiu */
	ret = snd_soc_register_component(dev, &aiu_cpu_component,
	aiu_cpu_dai_drv,
	ARRAY_SIZE(aiu_cpu_dai_drv));
	if (ret) {
	dev_err(dev, "Failed to register cpu component\n");
	return ret;
	}

	/* Register the hdmi codec control component */
	ret = aiu_hdmi_ctrl_register_component(dev);
	if (ret) {
	dev_err(dev, "Failed to register hdmi control component\n");
	goto err;
	}

	/* Register the internal dac control component on gxl */
	if (aiu->platform->has_acodec) {
	ret = aiu_acodec_ctrl_register_component(dev);
	if (ret) {
	dev_err(dev,
	"Failed to register acodec control component\n");
	goto err;
	}
	}

	return 0;
	err:
	snd_soc_unregister_component(dev);
	return ret;
	}

	static int aiu_remove(struct platform_device *pdev)
	{
	snd_soc_unregister_component(&pdev->dev);

	return 0;
	}

	static const struct aiu_platform_data aiu_gxbb_pdata = {
	.has_acodec = false,
	.has_clk_ctrl_more_i2s_div = true,
	};

	static const struct aiu_platform_data aiu_gxl_pdata = {
	.has_acodec = true,
	.has_clk_ctrl_more_i2s_div = true,
	};

	static const struct aiu_platform_data aiu_meson8_pdata = {
	.has_acodec = false,
	.has_clk_ctrl_more_i2s_div = false,
	};

	static const struct of_device_id aiu_of_match[] = {
	{ .compatible = "amlogic,aiu-gxbb", .data = &aiu_gxbb_pdata },
	{ .compatible = "amlogic,aiu-gxl", .data = &aiu_gxl_pdata },
	{ .compatible = "amlogic,aiu-meson8", .data = &aiu_meson8_pdata },
	{ .compatible = "amlogic,aiu-meson8b", .data = &aiu_meson8_pdata },
	{}
	};
	MODULE_DEVICE_TABLE(of, aiu_of_match);

	static struct platform_driver aiu_pdrv = {
	.probe = aiu_probe,
	.remove = aiu_remove,
	.driver = {
	.name = "meson-aiu",
	.of_match_table = aiu_of_match,
	},
	};
	module_platform_driver(aiu_pdrv);

	MODULE_DESCRIPTION("Meson AIU Driver");
	MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
	MODULE_LICENSE("GPL v2");