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>

1 files changed, 34 insertions, 32 deletions

diff --git a/sound/soc/sh/siu_dai.c b/sound/soc/sh/siu_dai.c
index eeed5edd722b..827940a8e248 100644
--- a/sound/soc/sh/siu_dai.c
+++ b/sound/soc/sh/siu_dai.c
@@ -71,6 +71,9 @@ struct port_flag {
 	struct format_flag	capture;
 };
 
+struct siu_info *siu_i2s_data = NULL;
+EXPORT_SYMBOL_GPL(siu_i2s_data);
+
 static struct port_flag siu_flags[SIU_PORT_NUM] = {
 	[SIU_PORT_A] = {
 		.playback = {
@@ -104,13 +107,13 @@ static struct port_flag siu_flags[SIU_PORT_NUM] = {
 
 static void siu_dai_start(struct siu_port *port_info)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = siu_i2s_data;
 	u32 __iomem *base = info->reg;
 
 	dev_dbg(port_info->pcm->card->dev, "%s\n", __func__);
 
 	/* Turn on SIU clock */
-	pm_runtime_get_sync(siu_i2s_dai.dev);
+	pm_runtime_get_sync(port_info->pcm->card->dev);
 
 	/* Issue software reset to siu */
 	siu_write32(base + SIU_SRCTL, 0);
@@ -148,21 +151,21 @@ static void siu_dai_start(struct siu_port *port_info)
 	siu_write32(base + SIU_SBDVCB, port_info->capture.volume);
 }
 
-static void siu_dai_stop(void)
+static void siu_dai_stop(struct siu_port *port_info)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = siu_i2s_data;
 	u32 __iomem *base = info->reg;
 
 	/* SIU software reset */
 	siu_write32(base + SIU_SRCTL, 0);
 
 	/* Turn off SIU clock */
-	pm_runtime_put_sync(siu_i2s_dai.dev);
+	pm_runtime_put_sync(port_info->pcm->card->dev);
 }
 
 static void siu_dai_spbAselect(struct siu_port *port_info)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = siu_i2s_data;
 	struct siu_firmware *fw = &info->fw;
 	u32 *ydef = fw->yram0;
 	u32 idx;
@@ -187,7 +190,7 @@ static void siu_dai_spbAselect(struct siu_port *port_info)
 
 static void siu_dai_spbBselect(struct siu_port *port_info)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = siu_i2s_data;
 	struct siu_firmware *fw = &info->fw;
 	u32 *ydef = fw->yram0;
 	u32 idx;
@@ -207,7 +210,7 @@ static void siu_dai_spbBselect(struct siu_port *port_info)
 
 static void siu_dai_open(struct siu_stream *siu_stream)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = siu_i2s_data;
 	u32 __iomem *base = info->reg;
 	u32 srctl, ifctl;
 
@@ -238,7 +241,7 @@ static void siu_dai_open(struct siu_stream *siu_stream)
  */
 static void siu_dai_pcmdatapack(struct siu_stream *siu_stream)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = siu_i2s_data;
 	u32 __iomem *base = info->reg;
 	u32 dpak;
 
@@ -258,7 +261,7 @@ static void siu_dai_pcmdatapack(struct siu_stream *siu_stream)
 
 static int siu_dai_spbstart(struct siu_port *port_info)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = siu_i2s_data;
 	u32 __iomem *base = info->reg;
 	struct siu_firmware *fw = &info->fw;
 	u32 *ydef = fw->yram0;
@@ -323,7 +326,7 @@ static int siu_dai_spbstart(struct siu_port *port_info)
 
 static void siu_dai_spbstop(struct siu_port *port_info)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = siu_i2s_data;
 	u32 __iomem *base = info->reg;
 
 	siu_write32(base + SIU_SBACTIV, 0);
@@ -402,7 +405,7 @@ static int siu_dai_put_volume(struct snd_kcontrol *kctrl,
 {
 	struct siu_port *port_info = snd_kcontrol_chip(kctrl);
 	struct device *dev = port_info->pcm->card->dev;
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = siu_i2s_data;
 	u32 __iomem *base = info->reg;
 	u32 new_vol;
 	u32 cur_vol;
@@ -510,7 +513,7 @@ void siu_free_port(struct siu_port *port_info)
 static int siu_dai_startup(struct snd_pcm_substream *substream,
 			   struct snd_soc_dai *dai)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = snd_soc_dai_get_drvdata(dai);
 	struct snd_pcm_runtime *rt = substream->runtime;
 	struct siu_port	*port_info = siu_port_info(substream);
 	int ret;
@@ -532,7 +535,7 @@ static int siu_dai_startup(struct snd_pcm_substream *substream,
 static void siu_dai_shutdown(struct snd_pcm_substream *substream,
 			     struct snd_soc_dai *dai)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = snd_soc_dai_get_drvdata(dai);
 	struct siu_port	*port_info = siu_port_info(substream);
 
 	dev_dbg(substream->pcm->card->dev, "%s: port=%d@%p\n", __func__,
@@ -548,7 +551,7 @@ static void siu_dai_shutdown(struct snd_pcm_substream *substream,
 		/* during stmread or stmwrite ? */
 		BUG_ON(port_info->playback.rw_flg || port_info->capture.rw_flg);
 		siu_dai_spbstop(port_info);
-		siu_dai_stop();
+		siu_dai_stop(port_info);
 	}
 }
 
@@ -556,7 +559,7 @@ static void siu_dai_shutdown(struct snd_pcm_substream *substream,
 static int siu_dai_prepare(struct snd_pcm_substream *substream,
 			   struct snd_soc_dai *dai)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = snd_soc_dai_get_drvdata(dai);
 	struct snd_pcm_runtime *rt = substream->runtime;
 	struct siu_port *port_info = siu_port_info(substream);
 	struct siu_stream *siu_stream;
@@ -605,7 +608,7 @@ fail:
 static int siu_dai_set_fmt(struct snd_soc_dai *dai,
 			   unsigned int fmt)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = snd_soc_dai_get_drvdata(dai);
 	u32 __iomem *base = info->reg;
 	u32 ifctl;
 
@@ -671,11 +674,11 @@ static int siu_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
 		return -EINVAL;
 	}
 
-	siu_clk = clk_get(siu_i2s_dai.dev, siu_name);
+	siu_clk = clk_get(dai->dev, siu_name);
 	if (IS_ERR(siu_clk))
 		return PTR_ERR(siu_clk);
 
-	parent_clk = clk_get(siu_i2s_dai.dev, parent_name);
+	parent_clk = clk_get(dai->dev, parent_name);
 	if (!IS_ERR(parent_clk)) {
 		ret = clk_set_parent(siu_clk, parent_clk);
 		if (!ret)
@@ -696,9 +699,8 @@ static struct snd_soc_dai_ops siu_dai_ops = {
 	.set_fmt	= siu_dai_set_fmt,
 };
 
-struct snd_soc_dai siu_i2s_dai = {
-	.name = "sh-siu",
-	.id = 0,
+static struct snd_soc_dai_driver siu_i2s_dai = {
+	.name	= "sui-i2s-dai",
 	.playback = {
 		.channels_min = 2,
 		.channels_max = 2,
@@ -713,7 +715,6 @@ struct snd_soc_dai siu_i2s_dai = {
 	 },
 	.ops = &siu_dai_ops,
 };
-EXPORT_SYMBOL_GPL(siu_i2s_dai);
 
 static int __devinit siu_probe(struct platform_device *pdev)
 {
@@ -725,6 +726,7 @@ static int __devinit siu_probe(struct platform_device *pdev)
 	info = kmalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
+	siu_i2s_data = info;
 
 	ret = request_firmware(&fw_entry, "siu_spb.bin", &pdev->dev);
 	if (ret)
@@ -767,14 +769,14 @@ static int __devinit siu_probe(struct platform_device *pdev)
 	if (!info->reg)
 		goto emapreg;
 
-	siu_i2s_dai.dev = &pdev->dev;
-	siu_i2s_dai.private_data = info;
+	dev_set_drvdata(&pdev->dev, info);
 
-	ret = snd_soc_register_dais(&siu_i2s_dai, 1);
+	/* register using ARRAY version so we can keep dai name */
+	ret = snd_soc_register_dais(&pdev->dev, &siu_i2s_dai, 1);
 	if (ret < 0)
 		goto edaiinit;
 
-	ret = snd_soc_register_platform(&siu_platform);
+	ret = snd_soc_register_platform(&pdev->dev, &siu_platform);
 	if (ret < 0)
 		goto esocregp;
 
@@ -783,7 +785,7 @@ static int __devinit siu_probe(struct platform_device *pdev)
 	return ret;
 
 esocregp:
-	snd_soc_unregister_dais(&siu_i2s_dai, 1);
+	snd_soc_unregister_dai(&pdev->dev);
 edaiinit:
 	iounmap(info->reg);
 emapreg:
@@ -804,13 +806,13 @@ ereqfw:
 
 static int __devexit siu_remove(struct platform_device *pdev)
 {
-	struct siu_info *info = siu_i2s_dai.private_data;
+	struct siu_info *info = dev_get_drvdata(&pdev->dev);
 	struct resource *res;
 
 	pm_runtime_disable(&pdev->dev);
 
-	snd_soc_unregister_platform(&siu_platform);
-	snd_soc_unregister_dais(&siu_i2s_dai, 1);
+	snd_soc_unregister_platform(&pdev->dev);
+	snd_soc_unregister_dai(&pdev->dev);
 
 	iounmap(info->reg);
 	iounmap(info->yram);
@@ -826,7 +828,7 @@ static int __devexit siu_remove(struct platform_device *pdev)
 
 static struct platform_driver siu_driver = {
 	.driver 	= {
-		.name	= "sh_siu",
+		.name	= "siu-pcm-audio",
 	},
 	.probe		= siu_probe,
 	.remove		= __devexit_p(siu_remove),