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, 28 insertions, 30 deletions

diff --git a/sound/soc/s3c24xx/neo1973_gta02_wm8753.c b/sound/soc/s3c24xx/neo1973_gta02_wm8753.c
index 209c25994c7..c457bfd8297 100644
--- a/sound/soc/s3c24xx/neo1973_gta02_wm8753.c
+++ b/sound/soc/s3c24xx/neo1973_gta02_wm8753.c
@@ -41,8 +41,8 @@ static int neo1973_gta02_hifi_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;
 	unsigned int pll_out = 0, bclk = 0;
 	int ret = 0;
 	unsigned long iis_clkrate;
@@ -130,7 +130,7 @@ static int neo1973_gta02_hifi_hw_params(struct snd_pcm_substream *substream,
 static int neo1973_gta02_hifi_hw_free(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 
 	/* disable the PLL */
 	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
@@ -149,7 +149,7 @@ static int neo1973_gta02_voice_hw_params(
 	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 *codec_dai = rtd->codec_dai;
 	unsigned int pcmdiv = 0;
 	int ret = 0;
 	unsigned long iis_clkrate;
@@ -194,7 +194,7 @@ static int neo1973_gta02_voice_hw_params(
 static int neo1973_gta02_voice_hw_free(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 
 	/* disable the PLL */
 	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
@@ -262,7 +262,7 @@ static int lm4853_event(struct snd_soc_dapm_widget *w,
 			struct snd_kcontrol *k,
 			int event)
 {
-	gpio_set_value(GTA02_GPIO_AMP_SHUT, SND_SOC_DAPM_EVENT_OFF(value));
+	gpio_set_value(GTA02_GPIO_AMP_SHUT, SND_SOC_DAPM_EVENT_OFF(event));
 
 	return 0;
 }
@@ -330,8 +330,9 @@ static const struct snd_kcontrol_new wm8753_neo1973_gta02_controls[] = {
  * This is an example machine initialisation for a wm8753 connected to a
  * neo1973 GTA02.
  */
-static int neo1973_gta02_wm8753_init(struct snd_soc_codec *codec)
+static int neo1973_gta02_wm8753_init(struct snd_soc_pcm_runtime *rtd)
 {
+	struct snd_soc_codec *codec = rtd->codec;
 	int err;
 
 	/* set up NC codec pins */
@@ -378,9 +379,8 @@ static int neo1973_gta02_wm8753_init(struct snd_soc_codec *codec)
 /*
  * BT Codec DAI
  */
-static struct snd_soc_dai bt_dai = {
-	.name = "Bluetooth",
-	.id = 0,
+static struct snd_soc_dai_driver bt_dai = {
+	.name = "bluetooth-dai",
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 1,
@@ -397,32 +397,30 @@ static struct snd_soc_dai_link neo1973_gta02_dai[] = {
 { /* Hifi Playback - for similatious use with voice below */
 	.name = "WM8753",
 	.stream_name = "WM8753 HiFi",
-	.cpu_dai = &s3c24xx_i2s_dai,
-	.codec_dai = &wm8753_dai[WM8753_DAI_HIFI],
+	.cpu_dai_name = "s3c24xx-i2s",
+	.codec_dai_name = "wm8753-hifi",
 	.init = neo1973_gta02_wm8753_init,
+	.platform_name = "s3c24xx-pcm-audio",
+	.codec_name = "wm8753-codec.0-0x1a",
 	.ops = &neo1973_gta02_hifi_ops,
 },
 { /* Voice via BT */
 	.name = "Bluetooth",
 	.stream_name = "Voice",
-	.cpu_dai = &bt_dai,
-	.codec_dai = &wm8753_dai[WM8753_DAI_VOICE],
+	.cpu_dai_name = "bluetooth-dai",
+	.codec_dai_name = "wm8753-voice",
 	.ops = &neo1973_gta02_voice_ops,
+	.codec_name = "wm8753-codec.0-0x1a",
+	.platform_name = "s3c24xx-pcm-audio",
 },
 };
 
 static struct snd_soc_card neo1973_gta02 = {
 	.name = "neo1973-gta02",
-	.platform = &s3c24xx_soc_platform,
 	.dai_link = neo1973_gta02_dai,
 	.num_links = ARRAY_SIZE(neo1973_gta02_dai),
 };
 
-static struct snd_soc_device neo1973_gta02_snd_devdata = {
-	.card = &neo1973_gta02,
-	.codec_dev = &soc_codec_dev_wm8753,
-};
-
 static struct platform_device *neo1973_gta02_snd_device;
 
 static int __init neo1973_gta02_init(void)
@@ -435,18 +433,18 @@ static int __init neo1973_gta02_init(void)
 		return -ENODEV;
 	}
 
-	/* register bluetooth DAI here */
-	ret = snd_soc_register_dai(&bt_dai);
-	if (ret)
-		return ret;
-
 	neo1973_gta02_snd_device = platform_device_alloc("soc-audio", -1);
 	if (!neo1973_gta02_snd_device)
 		return -ENOMEM;
 
-	platform_set_drvdata(neo1973_gta02_snd_device,
-			&neo1973_gta02_snd_devdata);
-	neo1973_gta02_snd_devdata.dev = &neo1973_gta02_snd_device->dev;
+	/* register bluetooth DAI here */
+	ret = snd_soc_register_dai(&neo1973_gta02_snd_device->dev, -1, &bt_dai);
+	if (ret) {
+		platform_device_put(neo1973_gta02_snd_device);
+		return ret;
+	}
+
+	platform_set_drvdata(neo1973_gta02_snd_device, &neo1973_gta02);
 	ret = platform_device_add(neo1973_gta02_snd_device);
 
 	if (ret) {
@@ -461,7 +459,7 @@ static int __init neo1973_gta02_init(void)
 		goto err_unregister_device;
 	}
 
-	ret = gpio_direction_output(GTA02_GPIO_AMP_HP_IN, 1);
+	ret = gpio_direction_output(GTA02_GPIO_HP_IN, 1);
 	if (ret) {
 		pr_err("gta02_wm8753: Failed to configure GPIO %d\n", GTA02_GPIO_HP_IN);
 		goto err_free_gpio_hp_in;
@@ -493,7 +491,7 @@ module_init(neo1973_gta02_init);
 
 static void __exit neo1973_gta02_exit(void)
 {
-	snd_soc_unregister_dai(&bt_dai);
+	snd_soc_unregister_dai(&neo1973_gta02_snd_device->dev, -1);
 	platform_device_unregister(neo1973_gta02_snd_device);
 	gpio_free(GTA02_GPIO_HP_IN);
 	gpio_free(GTA02_GPIO_AMP_SHUT);