ASoC: remove unused ep93xx files (2b45e1fa) · Commits · EulixOS / Software / Kernel

sound/soc/cirrus/Kconfig

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		@@ -27,29 +27,6 @@ config SND_EP93XX_SOC_I2S_WATCHDOG

		endif # if SND_EP93XX_SOC_I2S

		config SND_EP93XX_SOC_AC97
		tristate
		select AC97_BUS
		select SND_SOC_AC97_BUS

		config SND_EP93XX_SOC_SNAPPERCL15
		tristate "SoC Audio support for Bluewater Systems Snapper CL15 module"
		depends on SND_EP93XX_SOC && MACH_SNAPPER_CL15 && I2C
		select SND_EP93XX_SOC_I2S
		select SND_SOC_TLV320AIC23_I2C
		help
		Say Y or M here if you want to add support for I2S audio on the
		Bluewater Systems Snapper CL15 module.

		config SND_EP93XX_SOC_SIMONE
		tristate "SoC Audio support for Simplemachines Sim.One board"
		depends on SND_EP93XX_SOC && MACH_SIM_ONE
		select SND_EP93XX_SOC_AC97
		select SND_SOC_AC97_CODEC
		help
		Say Y or M here if you want to add support for AC97 audio on the
		Simplemachines Sim.One board.

		config SND_EP93XX_SOC_EDB93XX
		tristate "SoC Audio support for Cirrus Logic EDB93xx boards"
		depends on SND_EP93XX_SOC && (MACH_EDB9301 \|\| MACH_EDB9302 \|\| MACH_EDB9302A \|\| MACH_EDB9307A \|\| MACH_EDB9315A)

sound/soc/cirrus/Makefile

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		@@ -2,17 +2,11 @@
		# EP93xx Platform Support
		snd-soc-ep93xx-objs := ep93xx-pcm.o
		snd-soc-ep93xx-i2s-objs := ep93xx-i2s.o
		snd-soc-ep93xx-ac97-objs := ep93xx-ac97.o

		obj-$(CONFIG_SND_EP93XX_SOC) += snd-soc-ep93xx.o
		obj-$(CONFIG_SND_EP93XX_SOC_I2S) += snd-soc-ep93xx-i2s.o
		obj-$(CONFIG_SND_EP93XX_SOC_AC97) += snd-soc-ep93xx-ac97.o

		# EP93XX Machine Support
		snd-soc-snappercl15-objs := snappercl15.o
		snd-soc-simone-objs := simone.o
		snd-soc-edb93xx-objs := edb93xx.o

		obj-$(CONFIG_SND_EP93XX_SOC_SNAPPERCL15) += snd-soc-snappercl15.o
		obj-$(CONFIG_SND_EP93XX_SOC_SIMONE) += snd-soc-simone.o
		obj-$(CONFIG_SND_EP93XX_SOC_EDB93XX) += snd-soc-edb93xx.o

sound/soc/cirrus/ep93xx-ac97.c

deleted100644 → 0

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		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* ASoC driver for Cirrus Logic EP93xx AC97 controller.
		*
		* Copyright (c) 2010 Mika Westerberg
		*
		* Based on s3c-ac97 ASoC driver by Jaswinder Singh.
		*/

		#include <linux/delay.h>
		#include <linux/err.h>
		#include <linux/io.h>
		#include <linux/init.h>
		#include <linux/module.h>
		#include <linux/platform_device.h>
		#include <linux/slab.h>

		#include <sound/core.h>
		#include <sound/dmaengine_pcm.h>
		#include <sound/ac97_codec.h>
		#include <sound/soc.h>

		#include <linux/platform_data/dma-ep93xx.h>
		#include <linux/soc/cirrus/ep93xx.h>

		#include "ep93xx-pcm.h"

		/*
		* Per channel (1-4) registers.
		*/
		#define AC97CH(n) (((n) - 1) * 0x20)

		#define AC97DR(n) (AC97CH(n) + 0x0000)

		#define AC97RXCR(n) (AC97CH(n) + 0x0004)
		#define AC97RXCR_REN BIT(0)
		#define AC97RXCR_RX3 BIT(3)
		#define AC97RXCR_RX4 BIT(4)
		#define AC97RXCR_CM BIT(15)

		#define AC97TXCR(n) (AC97CH(n) + 0x0008)
		#define AC97TXCR_TEN BIT(0)
		#define AC97TXCR_TX3 BIT(3)
		#define AC97TXCR_TX4 BIT(4)
		#define AC97TXCR_CM BIT(15)

		#define AC97SR(n) (AC97CH(n) + 0x000c)
		#define AC97SR_TXFE BIT(1)
		#define AC97SR_TXUE BIT(6)

		#define AC97RISR(n) (AC97CH(n) + 0x0010)
		#define AC97ISR(n) (AC97CH(n) + 0x0014)
		#define AC97IE(n) (AC97CH(n) + 0x0018)

		/*
		* Global AC97 controller registers.
		*/
		#define AC97S1DATA 0x0080
		#define AC97S2DATA 0x0084
		#define AC97S12DATA 0x0088

		#define AC97RGIS 0x008c
		#define AC97GIS 0x0090
		#define AC97IM 0x0094
		/*
		* Common bits for RGIS, GIS and IM registers.
		*/
		#define AC97_SLOT2RXVALID BIT(1)
		#define AC97_CODECREADY BIT(5)
		#define AC97_SLOT2TXCOMPLETE BIT(6)

		#define AC97EOI 0x0098
		#define AC97EOI_WINT BIT(0)
		#define AC97EOI_CODECREADY BIT(1)

		#define AC97GCR 0x009c
		#define AC97GCR_AC97IFE BIT(0)

		#define AC97RESET 0x00a0
		#define AC97RESET_TIMEDRESET BIT(0)

		#define AC97SYNC 0x00a4
		#define AC97SYNC_TIMEDSYNC BIT(0)

		#define AC97_TIMEOUT msecs_to_jiffies(5)

		/**
		* struct ep93xx_ac97_info - EP93xx AC97 controller info structure
		* @lock: mutex serializing access to the bus (slot 1 & 2 ops)
		* @dev: pointer to the platform device dev structure
		* @regs: mapped AC97 controller registers
		* @done: bus ops wait here for an interrupt
		*/
		struct ep93xx_ac97_info {
		struct mutex lock;
		struct device *dev;
		void __iomem *regs;
		struct completion done;
		struct snd_dmaengine_dai_dma_data dma_params_rx;
		struct snd_dmaengine_dai_dma_data dma_params_tx;
		};

		/* currently ALSA only supports a single AC97 device */
		static struct ep93xx_ac97_info *ep93xx_ac97_info;

		static struct ep93xx_dma_data ep93xx_ac97_pcm_out = {
		.name = "ac97-pcm-out",
		.port = EP93XX_DMA_AAC1,
		.direction = DMA_MEM_TO_DEV,
		};

		static struct ep93xx_dma_data ep93xx_ac97_pcm_in = {
		.name = "ac97-pcm-in",
		.port = EP93XX_DMA_AAC1,
		.direction = DMA_DEV_TO_MEM,
		};

		static inline unsigned ep93xx_ac97_read_reg(struct ep93xx_ac97_info *info,
		unsigned reg)
		{
		return __raw_readl(info->regs + reg);
		}

		static inline void ep93xx_ac97_write_reg(struct ep93xx_ac97_info *info,
		unsigned reg, unsigned val)
		{
		__raw_writel(val, info->regs + reg);
		}

		static unsigned short ep93xx_ac97_read(struct snd_ac97 *ac97,
		unsigned short reg)
		{
		struct ep93xx_ac97_info *info = ep93xx_ac97_info;
		unsigned short val;

		mutex_lock(&info->lock);

		ep93xx_ac97_write_reg(info, AC97S1DATA, reg);
		ep93xx_ac97_write_reg(info, AC97IM, AC97_SLOT2RXVALID);
		if (!wait_for_completion_timeout(&info->done, AC97_TIMEOUT)) {
		dev_warn(info->dev, "timeout reading register %x\n", reg);
		mutex_unlock(&info->lock);
		return -ETIMEDOUT;
		}
		val = (unsigned short)ep93xx_ac97_read_reg(info, AC97S2DATA);

		mutex_unlock(&info->lock);
		return val;
		}

		static void ep93xx_ac97_write(struct snd_ac97 *ac97,
		unsigned short reg,
		unsigned short val)
		{
		struct ep93xx_ac97_info *info = ep93xx_ac97_info;

		mutex_lock(&info->lock);

		/*
		* Writes to the codec need to be done so that slot 2 is filled in
		* before slot 1.
		*/
		ep93xx_ac97_write_reg(info, AC97S2DATA, val);
		ep93xx_ac97_write_reg(info, AC97S1DATA, reg);

		ep93xx_ac97_write_reg(info, AC97IM, AC97_SLOT2TXCOMPLETE);
		if (!wait_for_completion_timeout(&info->done, AC97_TIMEOUT))
		dev_warn(info->dev, "timeout writing register %x\n", reg);

		mutex_unlock(&info->lock);
		}

		static void ep93xx_ac97_warm_reset(struct snd_ac97 *ac97)
		{
		struct ep93xx_ac97_info *info = ep93xx_ac97_info;

		mutex_lock(&info->lock);

		/*
		* We are assuming that before this functions gets called, the codec
		* BIT_CLK is stopped by forcing the codec into powerdown mode. We can
		* control the SYNC signal directly via AC97SYNC register. Using
		* TIMEDSYNC the controller will keep the SYNC high > 1us.
		*/
		ep93xx_ac97_write_reg(info, AC97SYNC, AC97SYNC_TIMEDSYNC);
		ep93xx_ac97_write_reg(info, AC97IM, AC97_CODECREADY);
		if (!wait_for_completion_timeout(&info->done, AC97_TIMEOUT))
		dev_warn(info->dev, "codec warm reset timeout\n");

		mutex_unlock(&info->lock);
		}

		static void ep93xx_ac97_cold_reset(struct snd_ac97 *ac97)
		{
		struct ep93xx_ac97_info *info = ep93xx_ac97_info;

		mutex_lock(&info->lock);

		/*
		* For doing cold reset, we disable the AC97 controller interface, clear
		* WINT and CODECREADY bits, and finally enable the interface again.
		*/
		ep93xx_ac97_write_reg(info, AC97GCR, 0);
		ep93xx_ac97_write_reg(info, AC97EOI, AC97EOI_CODECREADY \| AC97EOI_WINT);
		ep93xx_ac97_write_reg(info, AC97GCR, AC97GCR_AC97IFE);

		/*
		* Now, assert the reset and wait for the codec to become ready.
		*/
		ep93xx_ac97_write_reg(info, AC97RESET, AC97RESET_TIMEDRESET);
		ep93xx_ac97_write_reg(info, AC97IM, AC97_CODECREADY);
		if (!wait_for_completion_timeout(&info->done, AC97_TIMEOUT))
		dev_warn(info->dev, "codec cold reset timeout\n");

		/*
		* Give the codec some time to come fully out from the reset. This way
		* we ensure that the subsequent reads/writes will work.
		*/
		usleep_range(15000, 20000);

		mutex_unlock(&info->lock);
		}

		static irqreturn_t ep93xx_ac97_interrupt(int irq, void *dev_id)
		{
		struct ep93xx_ac97_info *info = dev_id;
		unsigned status, mask;

		/*
		* Just mask out the interrupt and wake up the waiting thread.
		* Interrupts are cleared via reading/writing to slot 1 & 2 registers by
		* the waiting thread.
		*/
		status = ep93xx_ac97_read_reg(info, AC97GIS);
		mask = ep93xx_ac97_read_reg(info, AC97IM);
		mask &= ~status;
		ep93xx_ac97_write_reg(info, AC97IM, mask);

		complete(&info->done);
		return IRQ_HANDLED;
		}

		static struct snd_ac97_bus_ops ep93xx_ac97_ops = {
		.read = ep93xx_ac97_read,
		.write = ep93xx_ac97_write,
		.reset = ep93xx_ac97_cold_reset,
		.warm_reset = ep93xx_ac97_warm_reset,
		};

		static int ep93xx_ac97_trigger(struct snd_pcm_substream *substream,
		int cmd, struct snd_soc_dai *dai)
		{
		struct ep93xx_ac97_info *info = snd_soc_dai_get_drvdata(dai);
		unsigned v = 0;

		switch (cmd) {
		case SNDRV_PCM_TRIGGER_START:
		case SNDRV_PCM_TRIGGER_RESUME:
		case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		/*
		* Enable compact mode, TX slots 3 & 4, and the TX FIFO
		* itself.
		*/
		v \|= AC97TXCR_CM;
		v \|= AC97TXCR_TX3 \| AC97TXCR_TX4;
		v \|= AC97TXCR_TEN;
		ep93xx_ac97_write_reg(info, AC97TXCR(1), v);
		} else {
		/*
		* Enable compact mode, RX slots 3 & 4, and the RX FIFO
		* itself.
		*/
		v \|= AC97RXCR_CM;
		v \|= AC97RXCR_RX3 \| AC97RXCR_RX4;
		v \|= AC97RXCR_REN;
		ep93xx_ac97_write_reg(info, AC97RXCR(1), v);
		}
		break;

		case SNDRV_PCM_TRIGGER_STOP:
		case SNDRV_PCM_TRIGGER_SUSPEND:
		case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		/*
		* As per Cirrus EP93xx errata described below:
		*
		* https://www.cirrus.com/en/pubs/errata/ER667E2B.pdf
		*
		* we will wait for the TX FIFO to be empty before
		* clearing the TEN bit.
		*/
		unsigned long timeout = jiffies + AC97_TIMEOUT;

		do {
		v = ep93xx_ac97_read_reg(info, AC97SR(1));
		if (time_after(jiffies, timeout)) {
		dev_warn(info->dev, "TX timeout\n");
		break;
		}
		} while (!(v & (AC97SR_TXFE \| AC97SR_TXUE)));

		/* disable the TX FIFO */
		ep93xx_ac97_write_reg(info, AC97TXCR(1), 0);
		} else {
		/* disable the RX FIFO */
		ep93xx_ac97_write_reg(info, AC97RXCR(1), 0);
		}
		break;

		default:
		dev_warn(info->dev, "unknown command %d\n", cmd);
		return -EINVAL;
		}

		return 0;
		}

		static int ep93xx_ac97_dai_probe(struct snd_soc_dai *dai)
		{
		struct ep93xx_ac97_info *info = snd_soc_dai_get_drvdata(dai);

		info->dma_params_tx.filter_data = &ep93xx_ac97_pcm_out;
		info->dma_params_rx.filter_data = &ep93xx_ac97_pcm_in;

		dai->playback_dma_data = &info->dma_params_tx;
		dai->capture_dma_data = &info->dma_params_rx;

		return 0;
		}

		static const struct snd_soc_dai_ops ep93xx_ac97_dai_ops = {
		.trigger = ep93xx_ac97_trigger,
		};

		static struct snd_soc_dai_driver ep93xx_ac97_dai = {
		.name = "ep93xx-ac97",
		.id = 0,
		.probe = ep93xx_ac97_dai_probe,
		.playback = {
		.stream_name = "AC97 Playback",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
		},
		.capture = {
		.stream_name = "AC97 Capture",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
		},
		.ops = &ep93xx_ac97_dai_ops,
		};

		static const struct snd_soc_component_driver ep93xx_ac97_component = {
		.name = "ep93xx-ac97",
		.legacy_dai_naming = 1,
		};

		static int ep93xx_ac97_probe(struct platform_device *pdev)
		{
		struct ep93xx_ac97_info *info;
		int irq;
		int ret;

		info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
		if (!info)
		return -ENOMEM;

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

		irq = platform_get_irq(pdev, 0);
		if (irq <= 0)
		return irq < 0 ? irq : -ENODEV;

		ret = devm_request_irq(&pdev->dev, irq, ep93xx_ac97_interrupt,
		IRQF_TRIGGER_HIGH, pdev->name, info);
		if (ret)
		goto fail;

		dev_set_drvdata(&pdev->dev, info);

		mutex_init(&info->lock);
		init_completion(&info->done);
		info->dev = &pdev->dev;

		ep93xx_ac97_info = info;
		platform_set_drvdata(pdev, info);

		ret = snd_soc_set_ac97_ops(&ep93xx_ac97_ops);
		if (ret)
		goto fail;

		ret = snd_soc_register_component(&pdev->dev, &ep93xx_ac97_component,
		&ep93xx_ac97_dai, 1);
		if (ret)
		goto fail;

		ret = devm_ep93xx_pcm_platform_register(&pdev->dev);
		if (ret)
		goto fail_unregister;

		return 0;

		fail_unregister:
		snd_soc_unregister_component(&pdev->dev);
		fail:
		ep93xx_ac97_info = NULL;
		snd_soc_set_ac97_ops(NULL);
		return ret;
		}

		static int ep93xx_ac97_remove(struct platform_device *pdev)
		{
		struct ep93xx_ac97_info *info = platform_get_drvdata(pdev);

		snd_soc_unregister_component(&pdev->dev);

		/* disable the AC97 controller */
		ep93xx_ac97_write_reg(info, AC97GCR, 0);

		ep93xx_ac97_info = NULL;

		snd_soc_set_ac97_ops(NULL);

		return 0;
		}

		static struct platform_driver ep93xx_ac97_driver = {
		.probe = ep93xx_ac97_probe,
		.remove = ep93xx_ac97_remove,
		.driver = {
		.name = "ep93xx-ac97",
		},
		};

		module_platform_driver(ep93xx_ac97_driver);

		MODULE_DESCRIPTION("EP93xx AC97 ASoC Driver");
		MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
		MODULE_LICENSE("GPL");
		MODULE_ALIAS("platform:ep93xx-ac97");

sound/soc/cirrus/simone.c

deleted100644 → 0

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		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* simone.c -- ASoC audio for Simplemachines Sim.One board
		*
		* Copyright (c) 2010 Mika Westerberg
		*
		* Based on snappercl15 machine driver by Ryan Mallon.
		*/

		#include <linux/init.h>
		#include <linux/module.h>
		#include <linux/platform_device.h>
		#include <linux/soc/cirrus/ep93xx.h>

		#include <sound/core.h>
		#include <sound/pcm.h>
		#include <sound/soc.h>

		#include <asm/mach-types.h>

		SND_SOC_DAILINK_DEFS(hifi,
		DAILINK_COMP_ARRAY(COMP_CPU("ep93xx-ac97")),
		DAILINK_COMP_ARRAY(COMP_CODEC("ac97-codec", "ac97-hifi")),
		DAILINK_COMP_ARRAY(COMP_PLATFORM("ep93xx-ac97")));

		static struct snd_soc_dai_link simone_dai = {
		.name = "AC97",
		.stream_name = "AC97 HiFi",
		SND_SOC_DAILINK_REG(hifi),
		};

		static struct snd_soc_card snd_soc_simone = {
		.name = "Sim.One",
		.owner = THIS_MODULE,
		.dai_link = &simone_dai,
		.num_links = 1,
		};

		static struct platform_device *simone_snd_ac97_device;

		static int simone_probe(struct platform_device *pdev)
		{
		struct snd_soc_card *card = &snd_soc_simone;
		int ret;

		simone_snd_ac97_device = platform_device_register_simple("ac97-codec",
		-1, NULL, 0);
		if (IS_ERR(simone_snd_ac97_device))
		return PTR_ERR(simone_snd_ac97_device);

		card->dev = &pdev->dev;

		ret = snd_soc_register_card(card);
		if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
		ret);
		platform_device_unregister(simone_snd_ac97_device);
		}

		return ret;
		}

		static int simone_remove(struct platform_device *pdev)
		{
		struct snd_soc_card *card = platform_get_drvdata(pdev);

		snd_soc_unregister_card(card);
		platform_device_unregister(simone_snd_ac97_device);

		return 0;
		}

		static struct platform_driver simone_driver = {
		.driver = {
		.name = "simone-audio",
		},
		.probe = simone_probe,
		.remove = simone_remove,
		};

		module_platform_driver(simone_driver);

		MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");
		MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
		MODULE_LICENSE("GPL");
		MODULE_ALIAS("platform:simone-audio");

sound/soc/cirrus/snappercl15.c

deleted100644 → 0

+0 −134

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-or-later
		/*
		* snappercl15.c -- SoC audio for Bluewater Systems Snapper CL15 module
		*
		* Copyright (C) 2008 Bluewater Systems Ltd
		* Author: Ryan Mallon
		*/

		#include <linux/platform_device.h>
		#include <linux/module.h>
		#include <linux/soc/cirrus/ep93xx.h>
		#include <sound/core.h>
		#include <sound/pcm.h>
		#include <sound/soc.h>

		#include <asm/mach-types.h>

		#include "../codecs/tlv320aic23.h"

		#define CODEC_CLOCK 5644800

		static int snappercl15_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *params)
		{
		struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
		struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
		struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
		int err;

		err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK,
		SND_SOC_CLOCK_IN);
		if (err)
		return err;

		err = snd_soc_dai_set_sysclk(cpu_dai, 0, CODEC_CLOCK,
		SND_SOC_CLOCK_OUT);
		if (err)
		return err;

		return 0;
		}

		static const struct snd_soc_ops snappercl15_ops = {
		.hw_params = snappercl15_hw_params,
		};

		static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
		SND_SOC_DAPM_HP("Headphone Jack", NULL),
		SND_SOC_DAPM_LINE("Line In", NULL),
		SND_SOC_DAPM_MIC("Mic Jack", NULL),
		};

		static const struct snd_soc_dapm_route audio_map[] = {
		{"Headphone Jack", NULL, "LHPOUT"},
		{"Headphone Jack", NULL, "RHPOUT"},

		{"LLINEIN", NULL, "Line In"},
		{"RLINEIN", NULL, "Line In"},

		{"MICIN", NULL, "Mic Jack"},
		};

		SND_SOC_DAILINK_DEFS(aic23,
		DAILINK_COMP_ARRAY(COMP_CPU("ep93xx-i2s")),
		DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic23-codec.0-001a",
		"tlv320aic23-hifi")),
		DAILINK_COMP_ARRAY(COMP_PLATFORM("ep93xx-i2s")));

		static struct snd_soc_dai_link snappercl15_dai = {
		.name = "tlv320aic23",
		.stream_name = "AIC23",
		.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
		SND_SOC_DAIFMT_CBC_CFC,
		.ops = &snappercl15_ops,
		SND_SOC_DAILINK_REG(aic23),
		};

		static struct snd_soc_card snd_soc_snappercl15 = {
		.name = "Snapper CL15",
		.owner = THIS_MODULE,
		.dai_link = &snappercl15_dai,
		.num_links = 1,

		.dapm_widgets = tlv320aic23_dapm_widgets,
		.num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
		.dapm_routes = audio_map,
		.num_dapm_routes = ARRAY_SIZE(audio_map),
		};

		static int snappercl15_probe(struct platform_device *pdev)
		{
		struct snd_soc_card *card = &snd_soc_snappercl15;
		int ret;

		ret = ep93xx_i2s_acquire();
		if (ret)
		return ret;

		card->dev = &pdev->dev;

		ret = snd_soc_register_card(card);
		if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
		ret);
		ep93xx_i2s_release();
		}

		return ret;
		}

		static int snappercl15_remove(struct platform_device *pdev)
		{
		struct snd_soc_card *card = platform_get_drvdata(pdev);

		snd_soc_unregister_card(card);
		ep93xx_i2s_release();

		return 0;
		}

		static struct platform_driver snappercl15_driver = {
		.driver = {
		.name = "snappercl15-audio",
		},
		.probe = snappercl15_probe,
		.remove = snappercl15_remove,
		};

		module_platform_driver(snappercl15_driver);

		MODULE_AUTHOR("Ryan Mallon");
		MODULE_DESCRIPTION("ALSA SoC Snapper CL15");
		MODULE_LICENSE("GPL");
		MODULE_ALIAS("platform:snappercl15-audio");