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authorMark Brown <broonie@kernel.org>2017-02-19 16:35:44 +0000
committerMark Brown <broonie@kernel.org>2017-02-19 16:35:44 +0000
commitc7bb6d8060eec4f3806b88796fbf46db1e73d900 (patch)
treed5cb74ddd14ac57738537fe373fd4faef02a5607
parent4ae8be8ea9f7b46f339b8481c265256ffd412567 (diff)
parent9bfa24e90956cc79362572391657b84cf54a559a (diff)
downloadlinux-c7bb6d8060eec4f3806b88796fbf46db1e73d900.tar.bz2
Merge remote-tracking branch 'asoc/topic/dmaengine' into asoc-next
-rw-r--r--include/sound/dmaengine_pcm.h6
-rw-r--r--sound/soc/samsung/dmaengine.c8
-rw-r--r--sound/soc/samsung/i2s.c3
-rw-r--r--sound/soc/samsung/s3c2412-i2s.c2
-rw-r--r--sound/soc/samsung/s3c24xx-i2s.c2
-rw-r--r--sound/soc/soc-generic-dmaengine-pcm.c12
6 files changed, 30 insertions, 3 deletions
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h
index 1c8f9e1ef2a5..67be2445941a 100644
--- a/include/sound/dmaengine_pcm.h
+++ b/include/sound/dmaengine_pcm.h
@@ -71,6 +71,7 @@ struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream)
* @slave_id: Slave requester id for the DMA channel.
* @filter_data: Custom DMA channel filter data, this will usually be used when
* requesting the DMA channel.
+ * @chan_name: Custom channel name to use when requesting DMA channel.
* @fifo_size: FIFO size of the DAI controller in bytes
* @flags: PCM_DAI flags, only SND_DMAENGINE_PCM_DAI_FLAG_PACK for now
*/
@@ -80,6 +81,7 @@ struct snd_dmaengine_dai_dma_data {
u32 maxburst;
unsigned int slave_id;
void *filter_data;
+ const char *chan_name;
unsigned int fifo_size;
unsigned int flags;
};
@@ -105,6 +107,10 @@ void snd_dmaengine_pcm_set_config_from_dai_data(
* playback.
*/
#define SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX BIT(3)
+/*
+ * The PCM streams have custom channel names specified.
+ */
+#define SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME BIT(4)
/**
* struct snd_dmaengine_pcm_config - Configuration data for dmaengine based PCM
diff --git a/sound/soc/samsung/dmaengine.c b/sound/soc/samsung/dmaengine.c
index cda656e4afc6..9104c98deeb7 100644
--- a/sound/soc/samsung/dmaengine.c
+++ b/sound/soc/samsung/dmaengine.c
@@ -37,8 +37,12 @@ int samsung_asoc_dma_platform_register(struct device *dev, dma_filter_fn filter,
pcm_conf->prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;
pcm_conf->compat_filter_fn = filter;
- pcm_conf->chan_names[SNDRV_PCM_STREAM_PLAYBACK] = tx;
- pcm_conf->chan_names[SNDRV_PCM_STREAM_CAPTURE] = rx;
+ if (dev->of_node) {
+ pcm_conf->chan_names[SNDRV_PCM_STREAM_PLAYBACK] = tx;
+ pcm_conf->chan_names[SNDRV_PCM_STREAM_CAPTURE] = rx;
+ } else {
+ flags |= SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME;
+ }
return devm_snd_dmaengine_pcm_register(dev, pcm_conf, flags);
}
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index e00974bc5616..85324e61cbd5 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -1305,6 +1305,8 @@ static int samsung_i2s_probe(struct platform_device *pdev)
}
pri_dai->dma_playback.addr = regs_base + I2STXD;
pri_dai->dma_capture.addr = regs_base + I2SRXD;
+ pri_dai->dma_playback.chan_name = "tx";
+ pri_dai->dma_capture.chan_name = "rx";
pri_dai->dma_playback.addr_width = 4;
pri_dai->dma_capture.addr_width = 4;
pri_dai->quirks = quirks;
@@ -1329,6 +1331,7 @@ static int samsung_i2s_probe(struct platform_device *pdev)
sec_dai->lock = &pri_dai->spinlock;
sec_dai->variant_regs = pri_dai->variant_regs;
sec_dai->dma_playback.addr = regs_base + I2STXDS;
+ sec_dai->dma_playback.chan_name = "tx-sec";
if (!np) {
sec_dai->dma_playback.filter_data = i2s_pdata->dma_play_sec;
diff --git a/sound/soc/samsung/s3c2412-i2s.c b/sound/soc/samsung/s3c2412-i2s.c
index 6d0b8897fa6c..0a4718207e6e 100644
--- a/sound/soc/samsung/s3c2412-i2s.c
+++ b/sound/soc/samsung/s3c2412-i2s.c
@@ -35,10 +35,12 @@
#include <linux/platform_data/asoc-s3c.h>
static struct snd_dmaengine_dai_dma_data s3c2412_i2s_pcm_stereo_out = {
+ .chan_name = "tx",
.addr_width = 4,
};
static struct snd_dmaengine_dai_dma_data s3c2412_i2s_pcm_stereo_in = {
+ .chan_name = "rx",
.addr_width = 4,
};
diff --git a/sound/soc/samsung/s3c24xx-i2s.c b/sound/soc/samsung/s3c24xx-i2s.c
index 07f5091b33e8..91e6871e5413 100644
--- a/sound/soc/samsung/s3c24xx-i2s.c
+++ b/sound/soc/samsung/s3c24xx-i2s.c
@@ -31,10 +31,12 @@
#include "s3c24xx-i2s.h"
static struct snd_dmaengine_dai_dma_data s3c24xx_i2s_pcm_stereo_out = {
+ .chan_name = "tx",
.addr_width = 2,
};
static struct snd_dmaengine_dai_dma_data s3c24xx_i2s_pcm_stereo_in = {
+ .chan_name = "rx",
.addr_width = 2,
};
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 17eb14935577..d53786498b61 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -263,6 +263,7 @@ static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd)
struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform);
const struct snd_dmaengine_pcm_config *config = pcm->config;
struct device *dev = rtd->platform->dev;
+ struct snd_dmaengine_dai_dma_data *dma_data;
struct snd_pcm_substream *substream;
size_t prealloc_buffer_size;
size_t max_buffer_size;
@@ -282,6 +283,13 @@ static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd)
if (!substream)
continue;
+ dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+
+ if (!pcm->chan[i] &&
+ (pcm->flags & SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME))
+ pcm->chan[i] = dma_request_slave_channel(dev,
+ dma_data->chan_name);
+
if (!pcm->chan[i] && (pcm->flags & SND_DMAENGINE_PCM_FLAG_COMPAT)) {
pcm->chan[i] = dmaengine_pcm_compat_request_channel(rtd,
substream);
@@ -350,7 +358,9 @@ static int dmaengine_pcm_request_chan_of(struct dmaengine_pcm *pcm,
const char *name;
struct dma_chan *chan;
- if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_DT) || !dev->of_node)
+ if ((pcm->flags & (SND_DMAENGINE_PCM_FLAG_NO_DT |
+ SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME)) ||
+ !dev->of_node)
return 0;
if (config && config->dma_dev) {