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, 12 insertions, 53 deletions

diff --git a/sound/soc/atmel/playpaq_wm8510.c b/sound/soc/atmel/playpaq_wm8510.c
index 9df4c68ef00..5f4e59f4461 100644
--- a/sound/soc/atmel/playpaq_wm8510.c
+++ b/sound/soc/atmel/playpaq_wm8510.c
@@ -83,7 +83,7 @@ static struct ssc_clock_data playpaq_wm8510_calc_ssc_clock(
 	struct snd_pcm_hw_params *params,
 	struct snd_soc_dai *cpu_dai)
 {
-	struct at32_ssc_info *ssc_p = cpu_dai->private_data;
+	struct at32_ssc_info *ssc_p = snd_soc_dai_get_drvdata(cpu_dai);
 	struct ssc_device *ssc = ssc_p->ssc;
 	struct ssc_clock_data cd;
 	unsigned int rate, width_bits, channels;
@@ -131,9 +131,9 @@ static int playpaq_wm8510_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 at32_ssc_info *ssc_p = cpu_dai->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct at32_ssc_info *ssc_p = snd_soc_dai_get_drvdata(cpu_dai);
 	struct ssc_device *ssc = ssc_p->ssc;
 	unsigned int pll_out = 0, bclk = 0, mclk_div = 0;
 	int ret;
@@ -315,8 +315,9 @@ static const struct snd_soc_dapm_route intercon[] = {
 
 
 
-static int playpaq_wm8510_init(struct snd_soc_codec *codec)
+static int playpaq_wm8510_init(struct snd_soc_pcm_runtime *rtd)
 {
+	struct snd_soc_codec *codec = rtd->codec;
 	int i;
 
 	/*
@@ -342,7 +343,7 @@ static int playpaq_wm8510_init(struct snd_soc_codec *codec)
 
 
 	/* Make CSB show PLL rate */
-	snd_soc_dai_set_clkdiv(codec->dai, WM8510_OPCLKDIV,
+	snd_soc_dai_set_clkdiv(rtd->codec_dai, WM8510_OPCLKDIV,
 				       WM8510_OPCLKDIV_1 | 4);
 
 	return 0;
@@ -353,8 +354,10 @@ static int playpaq_wm8510_init(struct snd_soc_codec *codec)
 static struct snd_soc_dai_link playpaq_wm8510_dai = {
 	.name = "WM8510",
 	.stream_name = "WM8510 PCM",
-	.cpu_dai = &at32_ssc_dai[0],
-	.codec_dai = &wm8510_dai,
+	.cpu_dai_name= "atmel-ssc-dai.0",
+	.platform_name = "atmel-pcm-audio",
+	.codec_name = "wm8510-codec.0-0x1a",
+	.codec_dai_name = "wm8510-hifi",
 	.init = playpaq_wm8510_init,
 	.ops = &playpaq_wm8510_ops,
 };
@@ -363,46 +366,16 @@ static struct snd_soc_dai_link playpaq_wm8510_dai = {
 
 static struct snd_soc_card snd_soc_playpaq = {
 	.name = "LRS_PlayPaq_WM8510",
-	.platform = &at32_soc_platform,
 	.dai_link = &playpaq_wm8510_dai,
 	.num_links = 1,
 };
 
-
-
-static struct wm8510_setup_data playpaq_wm8510_setup = {
-	.i2c_bus = 0,
-	.i2c_address = 0x1a,
-};
-
-
-
-static struct snd_soc_device playpaq_wm8510_snd_devdata = {
-	.card = &snd_soc_playpaq,
-	.codec_dev = &soc_codec_dev_wm8510,
-	.codec_data = &playpaq_wm8510_setup,
-};
-
 static struct platform_device *playpaq_snd_device;
 
 
 static int __init playpaq_asoc_init(void)
 {
 	int ret = 0;
-	struct at32_ssc_info *ssc_p = playpaq_wm8510_dai.cpu_dai->private_data;
-	struct ssc_device *ssc = NULL;
-
-
-	/*
-	 * Request SSC device
-	 */
-	ssc = ssc_request(0);
-	if (IS_ERR(ssc)) {
-		ret = PTR_ERR(ssc);
-		goto err_ssc;
-	}
-	ssc_p->ssc = ssc;
-
 
 	/*
 	 * Configure MCLK for WM8510
@@ -439,8 +412,7 @@ static int __init playpaq_asoc_init(void)
 		goto err_device_alloc;
 	}
 
-	platform_set_drvdata(playpaq_snd_device, &playpaq_wm8510_snd_devdata);
-	playpaq_wm8510_snd_devdata.dev = &playpaq_snd_device->dev;
+	platform_set_drvdata(playpaq_snd_device, &snd_soc_playpaq);
 
 	ret = platform_device_add(playpaq_snd_device);
 	if (ret) {
@@ -468,25 +440,12 @@ err_pll0:
 		clk_put(_gclk0);
 		_gclk0 = NULL;
 	}
-err_gclk0:
-	ssc_free(ssc);
-err_ssc:
 	return ret;
 }
 
 
 static void __exit playpaq_asoc_exit(void)
 {
-	struct at32_ssc_info *ssc_p = playpaq_wm8510_dai.cpu_dai->private_data;
-	struct ssc_device *ssc;
-
-	if (ssc_p != NULL) {
-		ssc = ssc_p->ssc;
-		if (ssc != NULL)
-			ssc_free(ssc);
-		ssc_p->ssc = NULL;
-	}
-
 	if (_gclk0 != NULL) {
 		clk_put(_gclk0);
 		_gclk0 = NULL;