Along with the conversion to PCM copy ops, use the iov_iter for the
pointer to be passed to the dmaengine process callback, too. It
avoids the direct reference of iter_iov_addr(), and it can potentially
help for the drivers to access memory properly (although both atmel
and stm drivers don't use the given buffer address at all for now).
Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
Cc: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: Olivier Moysan <olivier.moysan@xxxxxxxxxxx>
Cc: Arnaud Pouliquen <arnaud.pouliquen@xxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
include/sound/dmaengine_pcm.h | 2 +-
sound/soc/atmel/mchp-pdmc.c | 2 +-
sound/soc/soc-generic-dmaengine-pcm.c | 5 ++---
sound/soc/stm/stm32_sai_sub.c | 2 +-
4 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h
index 2df54cf02cb3..c9a8bce9a785 100644
--- a/include/sound/dmaengine_pcm.h
+++ b/include/sound/dmaengine_pcm.h
@@ -142,7 +142,7 @@ struct snd_dmaengine_pcm_config {
struct snd_pcm_substream *substream);
int (*process)(struct snd_pcm_substream *substream,
int channel, unsigned long hwoff,
- void *buf, unsigned long bytes);
+ struct iov_iter *buf, unsigned long bytes);
dma_filter_fn compat_filter_fn;
struct device *dma_dev;
const char *chan_names[SNDRV_PCM_STREAM_LAST + 1];
diff --git a/sound/soc/atmel/mchp-pdmc.c b/sound/soc/atmel/mchp-pdmc.c
index c79c73e6791e..b3afcf25b4a9 100644
--- a/sound/soc/atmel/mchp-pdmc.c
+++ b/sound/soc/atmel/mchp-pdmc.c
@@ -962,7 +962,7 @@ static int mchp_pdmc_dt_init(struct mchp_pdmc *dd)
/* used to clean the channel index found on RHR's MSB */
static int mchp_pdmc_process(struct snd_pcm_substream *substream,
int channel, unsigned long hwoff,
- void *buf, unsigned long bytes)
+ struct iov_iter *buf, unsigned long bytes)
{
struct snd_pcm_runtime *runtime = substream->runtime;
u8 *dma_ptr = runtime->dma_area + hwoff +
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 1a4f000fddb9..6dee033ab9b9 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -296,18 +296,17 @@ static int dmaengine_copy(struct snd_soc_component *component,
struct dmaengine_pcm *pcm = soc_component_to_pcm(component);
int (*process)(struct snd_pcm_substream *substream,
int channel, unsigned long hwoff,
- void *buf, unsigned long bytes) = pcm->config->process;
+ struct iov_iter *buf, unsigned long bytes) = pcm->config->process;
bool is_playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
void *dma_ptr = runtime->dma_area + hwoff +
channel * (runtime->dma_bytes / runtime->channels);
- void *ptr = (void __force *)iter_iov_addr(buf);
if (is_playback)
if (!copy_from_iter(dma_ptr, bytes, buf))
return -EFAULT;
if (process) {
- int ret = process(substream, channel, hwoff, ptr, bytes);
+ int ret = process(substream, channel, hwoff, buf, bytes);
if (ret < 0)
return ret;
}
diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c
index 271ec5b3378d..39f9b4654fa2 100644
--- a/sound/soc/stm/stm32_sai_sub.c
+++ b/sound/soc/stm/stm32_sai_sub.c
@@ -1233,7 +1233,7 @@ static const struct snd_soc_dai_ops stm32_sai_pcm_dai_ops = {
static int stm32_sai_pcm_process_spdif(struct snd_pcm_substream *substream,
int channel, unsigned long hwoff,
- void *buf, unsigned long bytes)
+ struct iov_iter *buf, unsigned long bytes)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
--
2.35.3
