ASoC: multi-component - ASoC Multi-Component Support

This patch extends the ASoC API to allow sound cards to have more than one
CODEC and more than one platform DMA controller. This is achieved by dividing
some current ASoC structures that contain both driver data and device data into
structures that only either contain device data or driver data. i.e.

 struct snd_soc_codec    --->  struct snd_soc_codec (device data)
                          +->  struct snd_soc_codec_driver (driver data)

 struct snd_soc_platform --->  struct snd_soc_platform (device data)
                          +->  struct snd_soc_platform_driver (driver data)

 struct snd_soc_dai      --->  struct snd_soc_dai (device data)
                          +->  struct snd_soc_dai_driver (driver data)

 struct snd_soc_device   --->  deleted

This now allows ASoC to be more tightly aligned with the Linux driver model and
also means that every ASoC codec, platform and (platform) DAI is a kernel
device. ASoC component private data is now stored as device private data.

The ASoC sound card struct snd_soc_card has also been updated to store lists
of it's components rather than a pointer to a codec and platform. The PCM
runtime struct soc_pcm_runtime now has pointers to all its components.

This patch adds DAPM support for ASoC multi-component and removes struct
snd_soc_socdev from DAPM core. All DAPM calls are now made on a card, codec
or runtime PCM level basis rather than using snd_soc_socdev.

Other notable multi-component changes:-

 * Stream operations now de-reference less structures.
 * close_delayed work() now runs on a DAI basis rather than looping all DAIs
   in a card.
 * PM suspend()/resume() operations can now handle N CODECs and Platforms
   per sound card.
 * Added soc_bind_dai_link() to bind the component devices to the sound card.
 * Added soc_dai_link_probe() and soc_dai_link_remove() to probe and remove
   DAI link components.
 * sysfs entries can now be registered per component per card.
 * snd_soc_new_pcms() functionailty rolled into dai_link_probe().
 * snd_soc_register_codec() now does all the codec list and mutex init.

This patch changes the probe() and remove() of the CODEC drivers as follows:-

 o Make CODEC driver a platform driver
 o Moved all struct snd_soc_codec list, mutex, etc initialiasation to core.
 o Removed all static codec pointers (drivers now support > 1 codec dev)
 o snd_soc_register_pcms() now done by core.
 o snd_soc_register_dai() folded into snd_soc_register_codec().

CS4270 portions:
Acked-by: Timur Tabi <timur@freescale.com>

Some TLV320aic23 and Cirrus platform fixes.
Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>

TI CODEC and OMAP fixes
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>

Samsung platform and misc fixes :-
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Seungwhan Youn <sw.youn@samsung.com>

MPC8610 and PPC fixes.
Signed-off-by: Timur Tabi <timur@freescale.com>

i.MX fixes and some core fixes.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

J4740 platform fixes:-
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>

CC: Tony Lindgren <tony@atomide.com>
CC: Nicolas Ferre <nicolas.ferre@atmel.com>
CC: Kevin Hilman <khilman@deeprootsystems.com>
CC: Sascha Hauer <s.hauer@pengutronix.de>
CC: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
CC: Kuninori Morimoto <morimoto.kuninori@renesas.com>
CC: Daniel Gloeckner <dg@emlix.com>
CC: Manuel Lauss <mano@roarinelk.homelinux.net>
CC: Mike Frysinger <vapier.adi@gmail.com>
CC: Arnaud Patard <apatard@mandriva.com>
CC: Wan ZongShun <mcuos.com@gmail.com>

Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

9 files changed, 203 insertions, 151 deletions

diff --git a/sound/soc/imx/Kconfig b/sound/soc/imx/Kconfig
index 52dac5e..66ba263 100644
--- a/sound/soc/imx/Kconfig
+++ b/sound/soc/imx/Kconfig
@@ -8,12 +8,24 @@ menuconfig SND_IMX_SOC
 	  Say Y or M if you want to add support for codecs attached to
 	  the i.MX SSI interface.
 
+
 if SND_IMX_SOC
 
+config SND_MXC_SOC_SSI
+	tristate
+
+config SND_MXC_SOC_FIQ
+	tristate
+
+config SND_MXC_SOC_MX2
+	tristate
+
 config SND_MXC_SOC_WM1133_EV1
 	tristate "Audio on the the i.MX31ADS with WM1133-EV1 fitted"
 	depends on MACH_MX31ADS_WM1133_EV1 && EXPERIMENTAL
 	select SND_SOC_WM8350
+	select SND_MXC_SOC_SSI
+	select SND_MXC_SOC_FIQ
 	help
 	  Enable support for audio on the i.MX31ADS with the WM1133-EV1
 	  PMIC board with WM8835x fitted.
@@ -22,6 +34,8 @@ config SND_SOC_PHYCORE_AC97
 	tristate "SoC Audio support for Phytec phyCORE (and phyCARD) boards"
 	depends on MACH_PCM043 || MACH_PCA100
 	select SND_SOC_WM9712
+	select SND_MXC_SOC_SSI
+	select SND_MXC_SOC_FIQ
 	help
 	  Say Y if you want to add support for SoC audio on Phytec phyCORE
 	  and phyCARD boards in AC97 mode
@@ -30,6 +44,8 @@ config SND_SOC_EUKREA_TLV320
 	tristate "Eukrea TLV320"
 	depends on MACH_EUKREA_MBIMX27_BASEBOARD || MACH_EUKREA_MBIMXSD_BASEBOARD
 	select SND_SOC_TLV320AIC23
+	select SND_MXC_SOC_SSI
+	select SND_MXC_SOC_FIQ
 	help
 	  Enable I2S based access to the TLV320AIC23B codec attached
 	  to the SSI interface
diff --git a/sound/soc/imx/Makefile b/sound/soc/imx/Makefile
index 7bc57ba..b67fc02 100644
--- a/sound/soc/imx/Makefile
+++ b/sound/soc/imx/Makefile
@@ -1,11 +1,11 @@
 # i.MX Platform Support
-snd-soc-imx-objs := imx-ssi.o imx-pcm-fiq.o
-
-ifdef CONFIG_MACH_MX27
-snd-soc-imx-objs += imx-pcm-dma-mx2.o
-endif
+snd-soc-imx-objs := imx-ssi.o
+snd-soc-imx-fiq-objs := imx-pcm-fiq.o
+snd-soc-imx-mx2-objs := imx-pcm-dma-mx2.o
 
 obj-$(CONFIG_SND_IMX_SOC) += snd-soc-imx.o
+obj-$(CONFIG_SND_MXC_SOC_FIQ) += snd-soc-imx-fiq.o
+obj-$(CONFIG_SND_MXC_SOC_MX2) += snd-soc-imx-mx2.o
 
 # i.MX Machine Support
 snd-soc-eukrea-tlv320-objs := eukrea-tlv320.o
diff --git a/sound/soc/imx/eukrea-tlv320.c b/sound/soc/imx/eukrea-tlv320.c
index f15dfbd..807f736 100644
--- a/sound/soc/imx/eukrea-tlv320.c
+++ b/sound/soc/imx/eukrea-tlv320.c
@@ -79,22 +79,19 @@ static struct snd_soc_ops eukrea_tlv320_snd_ops = {
 static struct snd_soc_dai_link eukrea_tlv320_dai = {
 	.name		= "tlv320aic23",
 	.stream_name	= "TLV320AIC23",
-	.codec_dai	= &tlv320aic23_dai,
+	.codec_dai	= "tlv320aic23-hifi",
+	.platform_name	= "imx-pcm-audio.0",
+	.codec_name	= "tlv320aic23-codec.0-001a",
+	.cpu_dai = "imx-ssi-dai.0",
 	.ops		= &eukrea_tlv320_snd_ops,
 };
 
 static struct snd_soc_card eukrea_tlv320 = {
 	.name		= "cpuimx-audio",
-	.platform	= &imx_soc_platform,
 	.dai_link	= &eukrea_tlv320_dai,
 	.num_links	= 1,
 };
 
-static struct snd_soc_device eukrea_tlv320_snd_devdata = {
-	.card		= &eukrea_tlv320,
-	.codec_dev	= &soc_codec_dev_tlv320aic23,
-};
-
 static struct platform_device *eukrea_tlv320_snd_device;
 
 static int __init eukrea_tlv320_init(void)
@@ -110,10 +107,7 @@ static int __init eukrea_tlv320_init(void)
 	if (!eukrea_tlv320_snd_device)
 		return -ENOMEM;
 
-	eukrea_tlv320_dai.cpu_dai = &imx_ssi_pcm_dai[0];
-
-	platform_set_drvdata(eukrea_tlv320_snd_device, &eukrea_tlv320_snd_devdata);
-	eukrea_tlv320_snd_devdata.dev = &eukrea_tlv320_snd_device->dev;
+	platform_set_drvdata(eukrea_tlv320_snd_device, &eukrea_tlv320);
 	ret = platform_device_add(eukrea_tlv320_snd_device);
 
 	if (ret) {
diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
index 0a595da..fd493ee 100644
--- a/sound/soc/imx/imx-pcm-dma-mx2.c
+++ b/sound/soc/imx/imx-pcm-dma-mx2.c
@@ -103,7 +103,7 @@ static int imx_ssi_dma_alloc(struct snd_pcm_substream *substream)
 	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
 	int ret;
 
-	dma_params = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
+	dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
 
 	iprtd->dma = imx_dma_request_by_prio(DRV_NAME, DMA_PRIO_HIGH);
 	if (iprtd->dma < 0) {
@@ -213,7 +213,7 @@ static int snd_imx_pcm_prepare(struct snd_pcm_substream *substream)
 	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
 	int err;
 
-	dma_params = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
+	dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
 
 	iprtd->substream = substream;
 	iprtd->buf = (unsigned int *)substream->dma_buffer.area;
@@ -318,19 +318,42 @@ static struct snd_pcm_ops imx_pcm_ops = {
 	.mmap		= snd_imx_pcm_mmap,
 };
 
-static struct snd_soc_platform imx_soc_platform_dma = {
-	.name		= "imx-audio",
-	.pcm_ops 	= &imx_pcm_ops,
+static struct snd_soc_platform_driver imx_soc_platform_mx2 = {
+	.ops		= &imx_pcm_ops,
 	.pcm_new	= imx_pcm_new,
 	.pcm_free	= imx_pcm_free,
 };
 
-struct snd_soc_platform *imx_ssi_dma_mx2_init(struct platform_device *pdev,
-		struct imx_ssi *ssi)
+static int __devinit imx_soc_platform_probe(struct platform_device *pdev)
 {
-	ssi->dma_params_tx.burstsize = DMA_TXFIFO_BURST;
-	ssi->dma_params_rx.burstsize = DMA_RXFIFO_BURST;
+	return snd_soc_register_platform(&pdev->dev, &imx_soc_platform_mx2);
+}
+
+static int __devexit imx_soc_platform_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_platform(&pdev->dev);
+	return 0;
+}
+
+static struct platform_driver imx_pcm_driver = {
+	.driver = {
+			.name = "imx-pcm-audio",
+			.owner = THIS_MODULE,
+	},
 
-	return &imx_soc_platform_dma;
+	.probe = imx_soc_platform_probe,
+	.remove = __devexit_p(imx_soc_platform_remove),
+};
+
+static int __init snd_imx_pcm_init(void)
+{
+	return platform_driver_register(&imx_pcm_driver);
+}
+module_init(snd_imx_pcm_init);
+
+static void __exit snd_imx_pcm_exit(void)
+{
+	platform_driver_unregister(&imx_pcm_driver);
 }
+module_exit(snd_imx_pcm_exit);
 
diff --git a/sound/soc/imx/imx-pcm-fiq.c b/sound/soc/imx/imx-pcm-fiq.c
index b2bf272..413b78d 100644
--- a/sound/soc/imx/imx-pcm-fiq.c
+++ b/sound/soc/imx/imx-pcm-fiq.c
@@ -236,6 +236,8 @@ static struct snd_pcm_ops imx_pcm_ops = {
 	.mmap		= snd_imx_pcm_mmap,
 };
 
+static int ssi_irq = 0;
+
 static int imx_pcm_fiq_new(struct snd_card *card, struct snd_soc_dai *dai,
 	struct snd_pcm *pcm)
 {
@@ -245,7 +247,7 @@ static int imx_pcm_fiq_new(struct snd_card *card, struct snd_soc_dai *dai,
 	if (ret)
 		return ret;
 
-	if (dai->playback.channels_min) {
+	if (dai->driver->playback.channels_min) {
 		struct snd_pcm_substream *substream =
 			pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 		struct snd_dma_buffer *buf = &substream->dma_buffer;
@@ -253,7 +255,7 @@ static int imx_pcm_fiq_new(struct snd_card *card, struct snd_soc_dai *dai,
 		imx_ssi_fiq_tx_buffer = (unsigned long)buf->area;
 	}
 
-	if (dai->capture.channels_min) {
+	if (dai->driver->capture.channels_min) {
 		struct snd_pcm_substream *substream =
 			pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 		struct snd_dma_buffer *buf = &substream->dma_buffer;
@@ -267,24 +269,32 @@ static int imx_pcm_fiq_new(struct snd_card *card, struct snd_soc_dai *dai,
 	return 0;
 }
 
-static struct snd_soc_platform imx_soc_platform_fiq = {
-	.pcm_ops 	= &imx_pcm_ops,
+static void imx_pcm_fiq_free(struct snd_pcm *pcm)
+{
+	mxc_set_irq_fiq(ssi_irq, 0);
+	release_fiq(&fh);
+	imx_pcm_free(pcm);
+}
+
+static struct snd_soc_platform_driver imx_soc_platform_fiq = {
+	.ops		= &imx_pcm_ops,
 	.pcm_new	= imx_pcm_fiq_new,
-	.pcm_free	= imx_pcm_free,
+	.pcm_free	= imx_pcm_fiq_free,
 };
 
-struct snd_soc_platform *imx_ssi_fiq_init(struct platform_device *pdev,
-		struct imx_ssi *ssi)
+static int __devinit imx_soc_platform_probe(struct platform_device *pdev)
 {
-	int ret = 0;
+	struct imx_ssi *ssi = platform_get_drvdata(pdev);
+	int ret;
 
 	ret = claim_fiq(&fh);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to claim fiq: %d", ret);
-		return ERR_PTR(ret);
+		return ret;
 	}
 
 	mxc_set_irq_fiq(ssi->irq, 1);
+	ssi_irq = ssi->irq;
 
 	imx_pcm_fiq = ssi->irq;
 
@@ -293,13 +303,43 @@ struct snd_soc_platform *imx_ssi_fiq_init(struct platform_device *pdev,
 	ssi->dma_params_tx.burstsize = 4;
 	ssi->dma_params_rx.burstsize = 6;
 
-	return &imx_soc_platform_fiq;
+	ret = snd_soc_register_platform(&pdev->dev, &imx_soc_platform_fiq);
+	if (ret)
+		goto failed_register;
+
+	return 0;
+
+failed_register:
+	mxc_set_irq_fiq(ssi_irq, 0);
+	release_fiq(&fh);
+
+	return ret;
 }
 
-void imx_ssi_fiq_exit(struct platform_device *pdev,
-		struct imx_ssi *ssi)
+static int __devexit imx_soc_platform_remove(struct platform_device *pdev)
 {
-	mxc_set_irq_fiq(ssi->irq, 0);
-	release_fiq(&fh);
+	snd_soc_unregister_platform(&pdev->dev);
+	return 0;
 }
 
+static struct platform_driver imx_pcm_driver = {
+	.driver = {
+			.name = "imx-fiq-pcm-audio",
+			.owner = THIS_MODULE,
+	},
+
+	.probe = imx_soc_platform_probe,
+	.remove = __devexit_p(imx_soc_platform_remove),
+};
+
+static int __init snd_imx_pcm_init(void)
+{
+	return platform_driver_register(&imx_pcm_driver);
+}
+module_init(snd_imx_pcm_init);
+
+static void __exit snd_imx_pcm_exit(void)
+{
+	platform_driver_unregister(&imx_pcm_driver);
+}
+module_exit(snd_imx_pcm_exit);
diff --git a/sound/soc/imx/imx-ssi.c b/sound/soc/imx/imx-ssi.c
index 50f5162..02a3e7c 100644
--- a/sound/soc/imx/imx-ssi.c
+++ b/sound/soc/imx/imx-ssi.c
@@ -61,7 +61,7 @@
 static int imx_ssi_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai,
 	unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
 {
-	struct imx_ssi *ssi = cpu_dai->private_data;
+	struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
 	u32 sccr;
 
 	sccr = readl(ssi->base + SSI_STCCR);
@@ -86,7 +86,7 @@ static int imx_ssi_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai,
  */
 static int imx_ssi_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt)
 {
-	struct imx_ssi *ssi = cpu_dai->private_data;
+	struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
 	u32 strcr = 0, scr;
 
 	scr = readl(ssi->base + SSI_SCR) & ~(SSI_SCR_SYN | SSI_SCR_NET);
@@ -164,7 +164,7 @@ static int imx_ssi_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt)
 static int imx_ssi_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
 				  int clk_id, unsigned int freq, int dir)
 {
-	struct imx_ssi *ssi = cpu_dai->private_data;
+	struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
 	u32 scr;
 
 	scr = readl(ssi->base + SSI_SCR);
@@ -192,7 +192,7 @@ static int imx_ssi_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
 static int imx_ssi_set_dai_clkdiv(struct snd_soc_dai *cpu_dai,
 				  int div_id, int div)
 {
-	struct imx_ssi *ssi = cpu_dai->private_data;
+	struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
 	u32 stccr, srccr;
 
 	stccr = readl(ssi->base + SSI_STCCR);
@@ -241,7 +241,7 @@ static int imx_ssi_hw_params(struct snd_pcm_substream *substream,
 			     struct snd_pcm_hw_params *params,
 			     struct snd_soc_dai *cpu_dai)
 {
-	struct imx_ssi *ssi = cpu_dai->private_data;
+	struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
 	struct imx_pcm_dma_params *dma_data;
 	u32 reg, sccr;
 
@@ -279,9 +279,7 @@ static int imx_ssi_hw_params(struct snd_pcm_substream *substream,
 static int imx_ssi_trigger(struct snd_pcm_substream *substream, int cmd,
 		struct snd_soc_dai *dai)
 {
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
-	struct imx_ssi *ssi = cpu_dai->private_data;
+	struct imx_ssi *ssi = snd_soc_dai_get_drvdata(dai);
 	unsigned int sier_bits, sier;
 	unsigned int scr;
 
@@ -350,22 +348,6 @@ static struct snd_soc_dai_ops imx_ssi_pcm_dai_ops = {
 	.trigger	= imx_ssi_trigger,
 };
 
-static struct snd_soc_dai imx_ssi_dai = {
-	.playback = {
-		.channels_min = 2,
-		.channels_max = 2,
-		.rates = SNDRV_PCM_RATE_8000_96000,
-		.formats = SNDRV_PCM_FMTBIT_S16_LE,
-	},
-	.capture = {
-		.channels_min = 2,
-		.channels_max = 2,
-		.rates = SNDRV_PCM_RATE_8000_96000,
-		.formats = SNDRV_PCM_FMTBIT_S16_LE,
-	},
-	.ops = &imx_ssi_pcm_dai_ops,
-};
-
 int snd_imx_pcm_mmap(struct snd_pcm_substream *substream,
 		struct vm_area_struct *vma)
 {
@@ -381,6 +363,7 @@ int snd_imx_pcm_mmap(struct snd_pcm_substream *substream,
 			runtime->dma_bytes);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(snd_imx_pcm_mmap);
 
 static int imx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
 {
@@ -412,14 +395,14 @@ int imx_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
 		card->dev->dma_mask = &imx_pcm_dmamask;
 	if (!card->dev->coherent_dma_mask)
 		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
-	if (dai->playback.channels_min) {
+	if (dai->driver->playback.channels_min) {
 		ret = imx_pcm_preallocate_dma_buffer(pcm,
 			SNDRV_PCM_STREAM_PLAYBACK);
 		if (ret)
 			goto out;
 	}
 
-	if (dai->capture.channels_min) {
+	if (dai->driver->capture.channels_min) {
 		ret = imx_pcm_preallocate_dma_buffer(pcm,
 			SNDRV_PCM_STREAM_CAPTURE);
 		if (ret)
@@ -429,6 +412,7 @@ int imx_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
 out:
 	return ret;
 }
+EXPORT_SYMBOL_GPL(imx_pcm_new);
 
 void imx_pcm_free(struct snd_pcm *pcm)
 {
@@ -450,14 +434,40 @@ void imx_pcm_free(struct snd_pcm *pcm)
 		buf->area = NULL;
 	}
 }
+EXPORT_SYMBOL_GPL(imx_pcm_free);
 
-struct snd_soc_platform imx_soc_platform = {
-	.name		= "imx-audio",
+static struct snd_soc_dai_driver imx_ssi_dai = {
+	.playback = {
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_96000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+	.capture = {
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_96000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+	.ops = &imx_ssi_pcm_dai_ops,
 };
-EXPORT_SYMBOL_GPL(imx_soc_platform);
 
-static struct snd_soc_dai imx_ac97_dai = {
-	.name = "AC97",
+static int imx_ssi_dai_probe(struct snd_soc_dai *dai)
+{
+	struct imx_ssi *ssi = dev_get_drvdata(dai->dev);
+	uint32_t val;
+
+	snd_soc_dai_set_drvdata(dai, ssi);
+
+	val = SSI_SFCSR_TFWM0(ssi->dma_params_tx.burstsize) |
+		SSI_SFCSR_RFWM0(ssi->dma_params_rx.burstsize);
+	writel(val, ssi->base + SSI_SFCSR);
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver imx_ac97_dai = {
+	.probe = imx_ssi_dai_probe,
 	.ac97_control = 1,
 	.playback = {
 		.stream_name = "AC97 Playback",
@@ -577,25 +587,18 @@ struct snd_ac97_bus_ops soc_ac97_ops = {
 };
 EXPORT_SYMBOL_GPL(soc_ac97_ops);
 
-struct snd_soc_dai imx_ssi_pcm_dai[2];
-EXPORT_SYMBOL_GPL(imx_ssi_pcm_dai);
-
 static int imx_ssi_probe(struct platform_device *pdev)
 {
 	struct resource *res;
 	struct imx_ssi *ssi;
 	struct imx_ssi_platform_data *pdata = pdev->dev.platform_data;
-	struct snd_soc_platform *platform;
 	int ret = 0;
-	unsigned int val;
-	struct snd_soc_dai *dai = &imx_ssi_pcm_dai[pdev->id];
-
-	if (dai->id >= ARRAY_SIZE(imx_ssi_pcm_dai))
-		return -EINVAL;
+	struct snd_soc_dai_driver *dai;
 
 	ssi = kzalloc(sizeof(*ssi), GFP_KERNEL);
 	if (!ssi)
 		return -ENOMEM;
+	dev_set_drvdata(&pdev->dev, ssi);
 
 	if (pdata) {
 		ssi->ac97_reset = pdata->ac97_reset;
@@ -640,9 +643,9 @@ static int imx_ssi_probe(struct platform_device *pdev)
 		}
 		ac97_ssi = ssi;
 		setup_channel_to_ac97(ssi);
-		memcpy(dai, &imx_ac97_dai, sizeof(imx_ac97_dai));
+		dai = &imx_ac97_dai;
 	} else
-		memcpy(dai, &imx_ssi_dai, sizeof(imx_ssi_dai));
+		dai = &imx_ssi_dai;
 
 	writel(0x0, ssi->base + SSI_SIER);
 
@@ -657,37 +660,36 @@ static int imx_ssi_probe(struct platform_device *pdev)
 	if (res)
 		ssi->dma_params_rx.dma = res->start;
 
-	dai->id = pdev->id;
-	dai->dev = &pdev->dev;
-	dai->name = kasprintf(GFP_KERNEL, "imx-ssi.%d", pdev->id);
-	dai->private_data = ssi;
-
 	if ((cpu_is_mx27() || cpu_is_mx21()) &&
 			!(ssi->flags & IMX_SSI_USE_AC97) &&
 			(ssi->flags & IMX_SSI_DMA)) {
 		ssi->flags |= IMX_SSI_DMA;
-		platform = imx_ssi_dma_mx2_init(pdev, ssi);
-	} else
-		platform = imx_ssi_fiq_init(pdev, ssi);
-
-	imx_soc_platform.pcm_ops = platform->pcm_ops;
-	imx_soc_platform.pcm_new = platform->pcm_new;
-	imx_soc_platform.pcm_free = platform->pcm_free;
+	}
 
-	val = SSI_SFCSR_TFWM0(ssi->dma_params_tx.burstsize) |
-		SSI_SFCSR_RFWM0(ssi->dma_params_rx.burstsize);
-	writel(val, ssi->base + SSI_SFCSR);
+	platform_set_drvdata(pdev, ssi);
 
-	ret = snd_soc_register_dai(dai);
+	ret = snd_soc_register_dai(&pdev->dev, dai);
 	if (ret) {
 		dev_err(&pdev->dev, "register DAI failed\n");
 		goto failed_register;
 	}
 
-	platform_set_drvdata(pdev, ssi);
+	ssi->soc_platform_pdev = platform_device_alloc("imx-fiq-pcm-audio", pdev->id);
+	if (!ssi->soc_platform_pdev)
+		goto failed_pdev_alloc;
+	platform_set_drvdata(ssi->soc_platform_pdev, ssi);
+	ret = platform_device_add(ssi->soc_platform_pdev);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to add platform device\n");
+		goto failed_pdev_add;
+	}
 
 	return 0;
 
+failed_pdev_add:
+	platform_device_put(ssi->soc_platform_pdev);
+failed_pdev_alloc:
+	snd_soc_unregister_dai(&pdev->dev);
 failed_register:
 failed_ac97:
 	iounmap(ssi->base);
@@ -706,16 +708,15 @@ static int __devexit imx_ssi_remove(struct platform_device *pdev)
 {
 	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct imx_ssi *ssi = platform_get_drvdata(pdev);
-	struct snd_soc_dai *dai = &imx_ssi_pcm_dai[pdev->id];
 
-	snd_soc_unregister_dai(dai);
+	platform_device_del(ssi->soc_platform_pdev);
+	platform_device_put(ssi->soc_platform_pdev);
+
+	snd_soc_unregister_dai(&pdev->dev);
 
 	if (ssi->flags & IMX_SSI_USE_AC97)
 		ac97_ssi = NULL;
 
-	if (!(ssi->flags & IMX_SSI_DMA))
-		imx_ssi_fiq_exit(pdev, ssi);
-
 	iounmap(ssi->base);
 	release_mem_region(res->start, resource_size(res));
 	clk_disable(ssi->clk);
@@ -730,34 +731,19 @@ static struct platform_driver imx_ssi_driver = {
 	.remove = __devexit_p(imx_ssi_remove),
 
 	.driver = {
-		.name = DRV_NAME,
+		.name = "imx-ssi-dai",
 		.owner = THIS_MODULE,
 	},
 };
 
 static int __init imx_ssi_init(void)
 {
-	int ret;
-
-	ret = snd_soc_register_platform(&imx_soc_platform);
-	if (ret) {
-		pr_err("failed to register soc platform: %d\n", ret);
-		return ret;
-	}
-
-	ret = platform_driver_register(&imx_ssi_driver);
-	if (ret) {
-		snd_soc_unregister_platform(&imx_soc_platform);
-		return ret;
-	}
-
-	return 0;
+	return platform_driver_register(&imx_ssi_driver);
 }
 
 static void __exit imx_ssi_exit(void)
 {
 	platform_driver_unregister(&imx_ssi_driver);
-	snd_soc_unregister_platform(&imx_soc_platform);
 }
 
 module_init(imx_ssi_init);
diff --git a/sound/soc/imx/imx-ssi.h b/sound/soc/imx/imx-ssi.h
index 55f26eb..53b780d 100644
--- a/sound/soc/imx/imx-ssi.h
+++ b/sound/soc/imx/imx-ssi.h
@@ -183,9 +183,6 @@
 #define IMX_SSI_RX_DIV_PSR	4
 #define IMX_SSI_RX_DIV_PM	5
 
-extern struct snd_soc_dai imx_ssi_pcm_dai[2];
-extern struct snd_soc_platform imx_soc_platform;
-
 #define DRV_NAME "imx-ssi"
 
 struct imx_pcm_dma_params {
@@ -197,7 +194,7 @@ struct imx_pcm_dma_params {
 struct imx_ssi {
 	struct platform_device *ac97_dev;
 
-	struct snd_soc_device imx_ac97;
+	struct snd_soc_dai *imx_ac97;
 	struct clk *clk;
 	void __iomem *base;
 	int irq;
@@ -213,6 +210,8 @@ struct imx_ssi {
 	struct imx_pcm_dma_params	dma_params_tx;
 
 	int enabled;
+
+	struct platform_device *soc_platform_pdev;
 };
 
 struct snd_soc_platform *imx_ssi_fiq_init(struct platform_device *pdev,
diff --git a/sound/soc/imx/phycore-ac97.c b/sound/soc/imx/phycore-ac97.c
index a8307d5..65f0f99 100644
--- a/sound/soc/imx/phycore-ac97.c
+++ b/sound/soc/imx/phycore-ac97.c
@@ -32,23 +32,20 @@ static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
 	{
 		.name		= "HiFi",
 		.stream_name	= "HiFi",
-		.codec_dai	= &wm9712_dai[WM9712_DAI_AC97_HIFI],
+		.codec_dai_name		= "wm9712-hifi",
+		.codec_name	= "wm9712-codec",
+		.cpu_dai_name	= "imx-ssi-dai.0",
+		.platform_name	= "imx-fiq-pcm-audio.0",
 		.ops		= &imx_phycore_hifi_ops,
 	},
 };
 
 static struct snd_soc_card imx_phycore = {
 	.name		= "PhyCORE-audio",
-	.platform	= &imx_soc_platform,
 	.dai_link	= imx_phycore_dai_ac97,
 	.num_links	= ARRAY_SIZE(imx_phycore_dai_ac97),
 };
 
-static struct snd_soc_device imx_phycore_snd_devdata = {
-	.card		= &imx_phycore,
-	.codec_dev	= &soc_codec_dev_wm9712,
-};
-
 static struct platform_device *imx_phycore_snd_device;
 
 static int __init imx_phycore_init(void)
@@ -63,10 +60,12 @@ static int __init imx_phycore_init(void)
 	if (!imx_phycore_snd_device)
 		return -ENOMEM;
 
-	imx_phycore_dai_ac97[0].cpu_dai = &imx_ssi_pcm_dai[0];
+	platform_set_drvdata(imx_phycore_snd_device, &imx_phycore);
+	ret = platform_device_add(imx_phycore_snd_device);
 
-	platform_set_drvdata(imx_phycore_snd_device, &imx_phycore_snd_devdata);
-	imx_phycore_snd_devdata.dev = &imx_phycore_snd_device->dev;
+	imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);
+	if (!imx_phycore_snd_device)
+		return -ENOMEM;
 	ret = platform_device_add(imx_phycore_snd_device);
 
 	if (ret) {
diff --git a/sound/soc/imx/wm1133-ev1.c b/sound/soc/imx/wm1133-ev1.c
index a6e7d94..7406863 100644
--- a/sound/soc/imx/wm1133-ev1.c
+++ b/sound/soc/imx/wm1133-ev1.c
@@ -82,8 +82,8 @@ static int wm1133_ev1_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->dai->codec_dai;
-	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	int i, found = 0;
 	snd_pcm_format_t format = params_format(params);
 	unsigned int rate = params_rate(params);
@@ -210,9 +210,9 @@ static struct snd_soc_jack_pin mic_jack_pins[] = {
 	{ .pin = "Mic2 Jack", .mask = SND_JACK_MICROPHONE },
 };
 
-static int wm1133_ev1_init(struct snd_soc_codec *codec)
+static int wm1133_ev1_init(struct snd_soc_pcm_runtime *rtd)
 {
-	struct snd_soc_card *card = codec->socdev->card;
+	struct snd_soc_codec *codec = rtd->codec;
 
 	snd_soc_dapm_new_controls(codec, wm1133_ev1_widgets,
 				  ARRAY_SIZE(wm1133_ev1_widgets));
@@ -221,13 +221,13 @@ static int wm1133_ev1_init(struct snd_soc_codec *codec)
 				ARRAY_SIZE(wm1133_ev1_map));
 
 	/* Headphone jack detection */
-	snd_soc_jack_new(card, "Headphone", SND_JACK_HEADPHONE, &hp_jack);
+	snd_soc_jack_new(codec, "Headphone", SND_JACK_HEADPHONE, &hp_jack);
 	snd_soc_jack_add_pins(&hp_jack, ARRAY_SIZE(hp_jack_pins),
 			      hp_jack_pins);
 	wm8350_hp_jack_detect(codec, WM8350_JDR, &hp_jack, SND_JACK_HEADPHONE);
 
 	/* Microphone jack detection */
-	snd_soc_jack_new(card, "Microphone",
+	snd_soc_jack_new(codec, "Microphone",
 			 SND_JACK_MICROPHONE | SND_JACK_BTN_0, &mic_jack);
 	snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
 			      mic_jack_pins);
@@ -243,8 +243,10 @@ static int wm1133_ev1_init(struct snd_soc_codec *codec)
 static struct snd_soc_dai_link wm1133_ev1_dai = {
 	.name = "WM1133-EV1",
 	.stream_name = "Audio",
-	.cpu_dai = &imx_ssi_pcm_dai[0],
-	.codec_dai = &wm8350_dai,
+	.cpu_dai_name = "imx-ssi-dai.0",
+	.codec_dai_name = "wm8350-hifi",
+	.platform_name = "imx-fiq-pcm-audio.0",
+	.codec_name = "wm8350-codec.0-0x1a",
 	.init = wm1133_ev1_init,
 	.ops = &wm1133_ev1_ops,
 	.symmetric_rates = 1,
@@ -252,16 +254,10 @@ static struct snd_soc_dai_link wm1133_ev1_dai = {
 
 static struct snd_soc_card wm1133_ev1 = {
 	.name = "WM1133-EV1",
-	.platform = &imx_soc_platform,
 	.dai_link = &wm1133_ev1_dai,
 	.num_links = 1,
 };
 
-static struct snd_soc_device wm1133_ev1_snd_devdata = {
-	.card = &wm1133_ev1,
-	.codec_dev = &soc_codec_dev_wm8350,
-};
-
 static struct platform_device *wm1133_ev1_snd_device;
 
 static int __init wm1133_ev1_audio_init(void)
@@ -286,8 +282,7 @@ static int __init wm1133_ev1_audio_init(void)
 	if (!wm1133_ev1_snd_device)
 		return -ENOMEM;
 
-	platform_set_drvdata(wm1133_ev1_snd_device, &wm1133_ev1_snd_devdata);
-	wm1133_ev1_snd_devdata.dev = &wm1133_ev1_snd_device->dev;
+	platform_set_drvdata(wm1133_ev1_snd_device, &wm1133_ev1);
 	ret = platform_device_add(wm1133_ev1_snd_device);
 
 	if (ret)