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, 51 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index 8e10db148f1b..200c31a2730e 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -340,6 +340,31 @@ struct platform_device pxa_device_i2s = {
 	.num_resources	= ARRAY_SIZE(pxai2s_resources),
 };
 
+struct platform_device pxa_device_asoc_ssp1 = {
+	.name		= "pxa-ssp-dai",
+	.id		= 0,
+};
+
+struct platform_device pxa_device_asoc_ssp2= {
+	.name		= "pxa-ssp-dai",
+	.id		= 1,
+};
+
+struct platform_device pxa_device_asoc_ssp3 = {
+	.name		= "pxa-ssp-dai",
+	.id		= 2,
+};
+
+struct platform_device pxa_device_asoc_ssp4 = {
+	.name		= "pxa-ssp-dai",
+	.id		= 3,
+};
+
+struct platform_device pxa_device_asoc_platform = {
+	.name		= "pxa-pcm-audio",
+	.id		= -1,
+};
+
 static u64 pxaficp_dmamask = ~(u32)0;
 
 struct platform_device pxa_device_ficp = {
diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h
index 93817d99761e..506fd5753ccc 100644
--- a/arch/arm/mach-pxa/devices.h
+++ b/arch/arm/mach-pxa/devices.h
@@ -37,4 +37,10 @@ extern struct platform_device pxa3xx_device_i2c_power;
 
 extern struct platform_device pxa3xx_device_gcu;
 
+extern struct platform_device pxa_device_asoc_platform;
+extern struct platform_device pxa_device_asoc_ssp1;
+extern struct platform_device pxa_device_asoc_ssp2;
+extern struct platform_device pxa_device_asoc_ssp3;
+extern struct platform_device pxa_device_asoc_ssp4;
+
 void __init pxa_register_device(struct platform_device *dev, void *data);
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 0af36177ff08..465008293a25 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -384,6 +384,10 @@ void __init pxa27x_set_i2c_power_info(struct i2c_pxa_platform_data *info)
 static struct platform_device *devices[] __initdata = {
 	&pxa27x_device_udc,
 	&pxa_device_i2s,
+	&pxa_device_asoc_ssp1,
+	&pxa_device_asoc_ssp2,
+	&pxa_device_asoc_ssp3,
+	&pxa_device_asoc_platform,
 	&sa1100_device_rtc,
 	&pxa_device_rtc,
 	&pxa27x_device_ssp1,
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index f544e58e1536..f7a3b158ca97 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -597,6 +597,11 @@ void __init pxa3xx_set_i2c_power_info(struct i2c_pxa_platform_data *info)
 static struct platform_device *devices[] __initdata = {
 	&pxa27x_device_udc,
 	&pxa_device_i2s,
+	&pxa_device_asoc_ssp1,
+	&pxa_device_asoc_ssp2,
+	&pxa_device_asoc_ssp3,
+	&pxa_device_asoc_ssp4,
+	&pxa_device_asoc_platform,
 	&sa1100_device_rtc,
 	&pxa_device_rtc,
 	&pxa27x_device_ssp1,
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index c479cbecf784..5ba9d99a1bf6 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -45,6 +45,16 @@ int wm9713_irq;
 int lcd_id;
 int lcd_orientation;
 
+struct platform_device pxa_device_wm9713_audio = {
+	.name		= "wm9713-codec",
+	.id		= -1,
+};
+
+static void __init zylonite_init_wm9713_audio(void)
+{
+	platform_device_register(&pxa_device_wm9713_audio);
+}
+
 static struct resource smc91x_resources[] = {
 	[0] = {
 		.start	= ZYLONITE_ETH_PHYS + 0x300,
@@ -408,6 +418,7 @@ static void __init zylonite_init(void)
 	zylonite_init_nand();
 	zylonite_init_leds();
 	zylonite_init_ohci();
+	zylonite_init_wm9713_audio();
 }
 
 MACHINE_START(ZYLONITE, "PXA3xx Platform Development Kit (aka Zylonite)")