ASoC: davinci: fixes for multi-component

Multi-component commit f0fba2ad broke a few things which this patch should
fix. Tested on the DM355 EVM. I've been as careful as I can, but it would be
good if those with access to other Davinci boards could test.

--

The multi-component commit put the initialisation of
snd_soc_dai.[capture|playback]_dma_data into snd_soc_dai_ops.hw_params of the
McBSP, McASP & VCIF drivers (davinci-i2s.c, davinci-mcasp.c & davinci-vcif.c).
The initialisation had to be moved from the probe function in these drivers
because davinci_*_dai changed from snd_soc_dai to snd_soc_dai_driver.

Unfortunately, the DMA params pointer is needed by davinci_pcm_open (in
davinci-pcm.c) before hw_params is called. I have moved the initialisation to
a new snd_soc_dai_ops.startup function in each of these drivers. This fix
indicates that all platforms that use davinci-pcm must have been broken and
need to test with this fix.

--

The multi-component commit also changed the McBSP driver name from
"davinci-asp" to "davinci-i2s" in davinci-i2s.c without updating the board
level references to the driver name. This change is understandable, as there
is a similarly named "davinci-mcasp" driver in davinci-mcasp.c.

There is probably no 'correct' name for this driver. The DM6446 datasheet
calls it the "ASP" and describes it as a "specialised McBSP". The DM355
datasheet calls it the "ASP" and describes it as a "specialised ASP". The
DM365 datasheet calls it the "McBSP". Rather than fix this problem by
reverting to "davinci-asp", I've elected to avoid future confusion with the
"davinci-mcasp" driver by changing it to "davinci-mcbsp", which is also
consistent with the names of the functions in the driver. There are other
fixes required, so it was never going to be as simple as a revert anyway.

--

The DM365 only has one McBSP port (of the McBSP platforms, only the DM355 has
2 ports), so I've changed the the id of the platform_device from 0 to -1.

--

In davinci-evm.c, the DM6446 EVM can no longer share a snd_soc_dai_link
structure with the DM355 EVM as they use different cpu DAI names (the DM355
has 2 ports and the EVM uses the second port, but the DM6446 only has 1 port).
This also means that the 2 boards need different snd_soc_card structures.

--

The codec_name entries in davinci-evm.c didn't match the i2c ids in the board
files. I have only checked and fixed the details of the names used for the
McBSP based platforms. Someone with a McASP based platform (eg DA8xx) should
check the others.

Signed-off-by: Chris Paulson-Ellis <chris@edesix.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 29 insertions, 11 deletions

diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c
index 2b07b17a6b2d..bc9e6b0b3f6f 100644
--- a/sound/soc/davinci/davinci-evm.c
+++ b/sound/soc/davinci/davinci-evm.c
@@ -157,12 +157,23 @@ static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
 }
 
 /* davinci-evm digital audio interface glue - connects codec <--> CPU */
-static struct snd_soc_dai_link evm_dai = {
+static struct snd_soc_dai_link dm6446_evm_dai = {
         .name = "TLV320AIC3X",
         .stream_name = "AIC3X",
-        .cpu_dai_name = "davinci-mcasp.0",
+        .cpu_dai_name = "davinci-mcbsp",
         .codec_dai_name = "tlv320aic3x-hifi",
-        .codec_name = "tlv320aic3x-codec.0-001a",
+        .codec_name = "tlv320aic3x-codec.1-001b",
+        .platform_name = "davinci-pcm-audio",
+        .init = evm_aic3x_init,
+        .ops = &evm_ops,
+};
+
+static struct snd_soc_dai_link dm355_evm_dai = {
+        .name = "TLV320AIC3X",
+        .stream_name = "AIC3X",
+        .cpu_dai_name = "davinci-mcbsp.1",
+        .codec_dai_name = "tlv320aic3x-hifi",
+        .codec_name = "tlv320aic3x-codec.1-001b",
         .platform_name = "davinci-pcm-audio",
         .init = evm_aic3x_init,
         .ops = &evm_ops,
@@ -172,10 +183,10 @@ static struct snd_soc_dai_link dm365_evm_dai = {
 #ifdef CONFIG_SND_DM365_AIC3X_CODEC
         .name = "TLV320AIC3X",
         .stream_name = "AIC3X",
-        .cpu_dai_name = "davinci-i2s",
+        .cpu_dai_name = "davinci-mcbsp",
         .codec_dai_name = "tlv320aic3x-hifi",
         .init = evm_aic3x_init,
-        .codec_name = "tlv320aic3x-codec.0-001a",
+        .codec_name = "tlv320aic3x-codec.1-0018",
         .ops = &evm_ops,
 #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
         .name = "Voice Codec - CQ93VC",
@@ -219,10 +230,17 @@ static struct snd_soc_dai_link da8xx_evm_dai = {
         .ops = &evm_ops,
 };
 
-/* davinci dm6446, dm355 evm audio machine driver */
-static struct snd_soc_card snd_soc_card_evm = {
-        .name = "DaVinci EVM",
-        .dai_link = &evm_dai,
+/* davinci dm6446 evm audio machine driver */
+static struct snd_soc_card dm6446_snd_soc_card_evm = {
+        .name = "DaVinci DM6446 EVM",
+        .dai_link = &dm6446_evm_dai,
+        .num_links = 1,
+};
+
+/* davinci dm355 evm audio machine driver */
+static struct snd_soc_card dm355_snd_soc_card_evm = {
+        .name = "DaVinci DM355 EVM",
+        .dai_link = &dm355_evm_dai,
         .num_links = 1,
 };
 
@@ -261,10 +279,10 @@ static int __init evm_init(void)
         int ret;
 
         if (machine_is_davinci_evm()) {
-                evm_snd_dev_data = &snd_soc_card_evm;
+                evm_snd_dev_data = &dm6446_snd_soc_card_evm;
                 index = 0;
         } else if (machine_is_davinci_dm355_evm()) {
-                evm_snd_dev_data = &snd_soc_card_evm;
+                evm_snd_dev_data = &dm355_snd_soc_card_evm;
                 index = 1;
         } else if (machine_is_davinci_dm365_evm()) {
                 evm_snd_dev_data = &dm365_snd_soc_card_evm;