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authorChris Paulson-Ellis <chris@edesix.com>2010-11-16 15:27:09 +0300
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-11-17 21:36:40 +0300
commitbedad0ca3fb2ba52c347b54a97b78d32e406dd96 (patch)
treed4c5bc3545b11a9c143ee8e0ab107fc71301c4dc /sound/soc/davinci/davinci-vcif.c
parent11e713a07e0c03e2202ad1e87cd91d45842ce3da (diff)
downloadlinux-bedad0ca3fb2ba52c347b54a97b78d32e406dd96.tar.xz
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>
Diffstat (limited to 'sound/soc/davinci/davinci-vcif.c')
-rw-r--r--sound/soc/davinci/davinci-vcif.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/sound/soc/davinci/davinci-vcif.c b/sound/soc/davinci/davinci-vcif.c
index ea232f6a2c21..fb4cc1edf339 100644
--- a/sound/soc/davinci/davinci-vcif.c
+++ b/sound/soc/davinci/davinci-vcif.c
@@ -97,9 +97,6 @@ static int davinci_vcif_hw_params(struct snd_pcm_substream *substream,
&davinci_vcif_dev->dma_params[substream->stream];
u32 w;
- dai->capture_dma_data = davinci_vcif_dev->dma_params;
- dai->playback_dma_data = davinci_vcif_dev->dma_params;
-
/* Restart the codec before setup */
davinci_vcif_stop(substream);
davinci_vcif_start(substream);
@@ -174,9 +171,19 @@ static int davinci_vcif_trigger(struct snd_pcm_substream *substream, int cmd,
return ret;
}
+static int davinci_vcif_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct davinci_vcif_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+ snd_soc_dai_set_dma_data(dai, substream, dev->dma_params);
+ return 0;
+}
+
#define DAVINCI_VCIF_RATES SNDRV_PCM_RATE_8000_48000
static struct snd_soc_dai_ops davinci_vcif_dai_ops = {
+ .startup = davinci_vcif_startup,
.trigger = davinci_vcif_trigger,
.hw_params = davinci_vcif_hw_params,
};