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>

5 files changed, 67 insertions, 79 deletions

diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c
index eb518f0c5e0..f3cffd18340 100644
--- a/sound/soc/jz4740/jz4740-i2s.c
+++ b/sound/soc/jz4740/jz4740-i2s.c
@@ -106,15 +106,10 @@ static inline void jz4740_i2s_write(const struct jz4740_i2s *i2s,
 	writel(value, i2s->base + reg);
 }
 
-static inline struct jz4740_i2s *jz4740_dai_to_i2s(struct snd_soc_dai *dai)
-{
-	return dai->private_data;
-}
-
 static int jz4740_i2s_startup(struct snd_pcm_substream *substream,
 	struct snd_soc_dai *dai)
 {
-	struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 	uint32_t conf, ctrl;
 
 	if (dai->active)
@@ -136,7 +131,7 @@ static int jz4740_i2s_startup(struct snd_pcm_substream *substream,
 static void jz4740_i2s_shutdown(struct snd_pcm_substream *substream,
 	struct snd_soc_dai *dai)
 {
-	struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 	uint32_t conf;
 
 	if (!dai->active)
@@ -152,7 +147,7 @@ static void jz4740_i2s_shutdown(struct snd_pcm_substream *substream,
 static int jz4740_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
 	struct snd_soc_dai *dai)
 {
-	struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 
 	uint32_t ctrl;
 	uint32_t mask;
@@ -186,7 +181,7 @@ static int jz4740_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
 
 static int jz4740_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 {
-	struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 
 	uint32_t format = 0;
 	uint32_t conf;
@@ -238,7 +233,7 @@ static int jz4740_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
 {
-	struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 	enum jz4740_dma_width dma_width;
 	struct jz4740_pcm_config *pcm_config;
 	unsigned int sample_size;
@@ -288,7 +283,7 @@ static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream,
 static int jz4740_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id,
 	unsigned int freq, int dir)
 {
-	struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 	struct clk *parent;
 	int ret = 0;
 
@@ -312,7 +307,7 @@ static int jz4740_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id,
 
 static int jz4740_i2s_suspend(struct snd_soc_dai *dai)
 {
-	struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 	uint32_t conf;
 
 	if (dai->active) {
@@ -330,7 +325,7 @@ static int jz4740_i2s_suspend(struct snd_soc_dai *dai)
 
 static int jz4740_i2s_resume(struct snd_soc_dai *dai)
 {
-	struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 	uint32_t conf;
 
 	clk_enable(i2s->clk_aic);
@@ -346,11 +341,38 @@ static int jz4740_i2s_resume(struct snd_soc_dai *dai)
 	return 0;
 }
 
-static int jz4740_i2s_probe(struct platform_device *pdev, struct snd_soc_dai *dai)
+static void jz4740_i2c_init_pcm_config(struct jz4740_i2s *i2s)
 {
-	struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+	struct jz4740_dma_config *dma_config;
+
+	/* Playback */
+	dma_config = &i2s->pcm_config_playback.dma_config;
+	dma_config->src_width = JZ4740_DMA_WIDTH_32BIT,
+	dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
+	dma_config->request_type = JZ4740_DMA_TYPE_AIC_TRANSMIT;
+	dma_config->flags = JZ4740_DMA_SRC_AUTOINC;
+	dma_config->mode = JZ4740_DMA_MODE_SINGLE;
+	i2s->pcm_config_playback.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO;
+
+	/* Capture */
+	dma_config = &i2s->pcm_config_capture.dma_config;
+	dma_config->dst_width = JZ4740_DMA_WIDTH_32BIT,
+	dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
+	dma_config->request_type = JZ4740_DMA_TYPE_AIC_RECEIVE;
+	dma_config->flags = JZ4740_DMA_DST_AUTOINC;
+	dma_config->mode = JZ4740_DMA_MODE_SINGLE;
+	i2s->pcm_config_capture.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO;
+}
+
+static int jz4740_i2s_dai_probe(struct snd_soc_dai *dai)
+{
+	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 	uint32_t conf;
 
+	clk_enable(i2s->clk_aic);
+
+	jz4740_i2c_init_pcm_config(i2s);
+
 	conf = (7 << JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET) |
 		(8 << JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET) |
 		JZ_AIC_CONF_OVERFLOW_PLAY_LAST |
@@ -363,6 +385,14 @@ static int jz4740_i2s_probe(struct platform_device *pdev, struct snd_soc_dai *da
 	return 0;
 }
 
+static int jz4740_i2s_dai_remove(struct snd_soc_dai *dai)
+{
+	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+
+	clk_disable(i2s->clk_aic);
+	return 0;
+}
+
 static struct snd_soc_dai_ops jz4740_i2s_dai_ops = {
 	.startup = jz4740_i2s_startup,
 	.shutdown = jz4740_i2s_shutdown,
@@ -375,9 +405,9 @@ static struct snd_soc_dai_ops jz4740_i2s_dai_ops = {
 #define JZ4740_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | \
 		SNDRV_PCM_FMTBIT_S16_LE)
 
-struct snd_soc_dai jz4740_i2s_dai = {
-	.name = "jz4740-i2s",
-	.probe = jz4740_i2s_probe,
+static struct snd_soc_dai_driver jz4740_i2s_dai = {
+	.probe = jz4740_i2s_dai_probe,
+	.remove = jz4740_i2s_dai_remove,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 2,
@@ -395,30 +425,6 @@ struct snd_soc_dai jz4740_i2s_dai = {
 	.suspend = jz4740_i2s_suspend,
 	.resume = jz4740_i2s_resume,
 };
-EXPORT_SYMBOL_GPL(jz4740_i2s_dai);
-
-static void __devinit jz4740_i2c_init_pcm_config(struct jz4740_i2s *i2s)
-{
-	struct jz4740_dma_config *dma_config;
-
-	/* Playback */
-	dma_config = &i2s->pcm_config_playback.dma_config;
-	dma_config->src_width = JZ4740_DMA_WIDTH_32BIT,
-	dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
-	dma_config->request_type = JZ4740_DMA_TYPE_AIC_TRANSMIT;
-	dma_config->flags = JZ4740_DMA_SRC_AUTOINC;
-	dma_config->mode = JZ4740_DMA_MODE_SINGLE;
-	i2s->pcm_config_playback.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO;
-
-	/* Capture */
-	dma_config = &i2s->pcm_config_capture.dma_config;
-	dma_config->dst_width = JZ4740_DMA_WIDTH_32BIT,
-	dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
-	dma_config->request_type = JZ4740_DMA_TYPE_AIC_RECEIVE;
-	dma_config->flags = JZ4740_DMA_DST_AUTOINC;
-	dma_config->mode = JZ4740_DMA_MODE_SINGLE;
-	i2s->pcm_config_capture.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO;
-}
 
 static int __devinit jz4740_i2s_dev_probe(struct platform_device *pdev)
 {
@@ -463,24 +469,17 @@ static int __devinit jz4740_i2s_dev_probe(struct platform_device *pdev)
 		goto err_clk_put_aic;
 	}
 
-	clk_enable(i2s->clk_aic);
-
-	jz4740_i2c_init_pcm_config(i2s);
-
-	jz4740_i2s_dai.private_data = i2s;
-	ret = snd_soc_register_dai(&jz4740_i2s_dai);
+	platform_set_drvdata(pdev, i2s);
+	ret = snd_soc_register_dai(&pdev->dev, &jz4740_i2s_dai);
 
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to register DAI\n");
 		goto err_clk_put_i2s;
 	}
 
-	platform_set_drvdata(pdev, i2s);
-
 	return 0;
 
 err_clk_put_i2s:
-	clk_disable(i2s->clk_aic);
 	clk_put(i2s->clk_i2s);
 err_clk_put_aic:
 	clk_put(i2s->clk_aic);
@@ -498,9 +497,8 @@ static int __devexit jz4740_i2s_dev_remove(struct platform_device *pdev)
 {
 	struct jz4740_i2s *i2s = platform_get_drvdata(pdev);
 
-	snd_soc_unregister_dai(&jz4740_i2s_dai);
+	snd_soc_unregister_dai(&pdev->dev);
 
-	clk_disable(i2s->clk_aic);
 	clk_put(i2s->clk_i2s);
 	clk_put(i2s->clk_aic);
 
diff --git a/sound/soc/jz4740/jz4740-i2s.h b/sound/soc/jz4740/jz4740-i2s.h
index da22ed88a58..5e49339d8b9 100644
--- a/sound/soc/jz4740/jz4740-i2s.h
+++ b/sound/soc/jz4740/jz4740-i2s.h
@@ -13,6 +13,4 @@
 
 #define JZ4740_I2S_BIT_CLK		0
 
-extern struct snd_soc_dai jz4740_i2s_dai;
-
 #endif
diff --git a/sound/soc/jz4740/jz4740-pcm.c b/sound/soc/jz4740/jz4740-pcm.c
index ee68d850c8d..fb1483f7c96 100644
--- a/sound/soc/jz4740/jz4740-pcm.c
+++ b/sound/soc/jz4740/jz4740-pcm.c
@@ -109,7 +109,7 @@ static int jz4740_pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct jz4740_pcm_config *config;
 
-	config = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
+	config = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
 
 	if (!config)
 		return 0;
@@ -310,14 +310,14 @@ int jz4740_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
 	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 = jz4740_pcm_preallocate_dma_buffer(pcm,
 			SNDRV_PCM_STREAM_PLAYBACK);
 		if (ret)
 			goto err;
 	}
 
-	if (dai->capture.channels_min) {
+	if (dai->driver->capture.channels_min) {
 		ret = jz4740_pcm_preallocate_dma_buffer(pcm,
 			SNDRV_PCM_STREAM_CAPTURE);
 		if (ret)
@@ -328,22 +328,20 @@ err:
 	return ret;
 }
 
-struct snd_soc_platform jz4740_soc_platform = {
-		.name		= "jz4740-pcm",
-		.pcm_ops	= &jz4740_pcm_ops,
+static struct snd_soc_platform_driver jz4740_soc_platform = {
+		.ops		= &jz4740_pcm_ops,
 		.pcm_new	= jz4740_pcm_new,
 		.pcm_free	= jz4740_pcm_free,
 };
-EXPORT_SYMBOL_GPL(jz4740_soc_platform);
 
 static int __devinit jz4740_pcm_probe(struct platform_device *pdev)
 {
-	return snd_soc_register_platform(&jz4740_soc_platform);
+	return snd_soc_register_platform(&pdev->dev, &jz4740_soc_platform);
 }
 
 static int __devexit jz4740_pcm_remove(struct platform_device *pdev)
 {
-	snd_soc_unregister_platform(&jz4740_soc_platform);
+	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
 }
 
@@ -351,7 +349,7 @@ static struct platform_driver jz4740_pcm_driver = {
 	.probe = jz4740_pcm_probe,
 	.remove = __devexit_p(jz4740_pcm_remove),
 	.driver = {
-		.name = "jz4740-pcm",
+		.name = "jz4740-pcm-audio",
 		.owner = THIS_MODULE,
 	},
 };
diff --git a/sound/soc/jz4740/jz4740-pcm.h b/sound/soc/jz4740/jz4740-pcm.h
index e3f221e2779..1220cbb4382 100644
--- a/sound/soc/jz4740/jz4740-pcm.h
+++ b/sound/soc/jz4740/jz4740-pcm.h
@@ -11,8 +11,6 @@
 #include <linux/dma-mapping.h>
 #include <asm/mach-jz4740/dma.h>
 
-/* platform data */
-extern struct snd_soc_platform jz4740_soc_platform;
 
 struct jz4740_pcm_config {
 	struct jz4740_dma_config dma_config;
diff --git a/sound/soc/jz4740/qi_lb60.c b/sound/soc/jz4740/qi_lb60.c
index f15f4918f15..78dabebe8fd 100644
--- a/sound/soc/jz4740/qi_lb60.c
+++ b/sound/soc/jz4740/qi_lb60.c
@@ -60,10 +60,11 @@ static const struct snd_soc_dapm_route qi_lb60_routes[] = {
 			SND_SOC_DAIFMT_NB_NF | \
 			SND_SOC_DAIFMT_CBM_CFM)
 
-static int qi_lb60_codec_init(struct snd_soc_codec *codec)
+static int qi_lb60_codec_init(struct snd_soc_pcm_runtime *rtd)
 {
+	struct snd_soc_codec *codec = rtd->codec;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	int ret;
-	struct snd_soc_dai *cpu_dai = codec->socdev->card->dai_link->cpu_dai;
 
 	snd_soc_dapm_nc_pin(codec, "LIN");
 	snd_soc_dapm_nc_pin(codec, "RIN");
@@ -84,8 +85,10 @@ static int qi_lb60_codec_init(struct snd_soc_codec *codec)
 static struct snd_soc_dai_link qi_lb60_dai = {
 	.name = "jz4740",
 	.stream_name = "jz4740",
-	.cpu_dai = &jz4740_i2s_dai,
-	.codec_dai = &jz4740_codec_dai,
+	.cpu_dai_name = "jz4740-i2s",
+	.platform_name = "jz4740-pmc-audio",
+	.codec_dai_name = "jz4740-hifi",
+	.codec_name = "jz4740-codec",
 	.init = qi_lb60_codec_init,
 };
 
@@ -93,12 +96,6 @@ static struct snd_soc_card qi_lb60 = {
 	.name = "QI LB60",
 	.dai_link = &qi_lb60_dai,
 	.num_links = 1,
-	.platform = &jz4740_soc_platform,
-};
-
-static struct snd_soc_device qi_lb60_snd_devdata = {
-	.card = &qi_lb60,
-	.codec_dev = &soc_codec_dev_jz4740_codec,
 };
 
 static struct platform_device *qi_lb60_snd_device;
@@ -129,8 +126,7 @@ static int __init qi_lb60_init(void)
 	gpio_direction_output(QI_LB60_SND_GPIO, 0);
 	gpio_direction_output(QI_LB60_AMP_GPIO, 0);
 
-	platform_set_drvdata(qi_lb60_snd_device, &qi_lb60_snd_devdata);
-	qi_lb60_snd_devdata.dev = &qi_lb60_snd_device->dev;
+	platform_set_drvdata(qi_lb60_snd_device, &qi_lb60);
 
 	ret = platform_device_add(qi_lb60_snd_device);
 	if (ret) {