diff options
| author | Takashi Iwai <tiwai@suse.de> | 2023-08-15 22:01:33 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-08-18 13:19:18 +0300 |
| commit | 9bebd65443c1379f6643397bf4854d6f80a8358c (patch) | |
| tree | 64ad74dc398ef939b5f45c4bab9250e4064bd93d | |
| parent | 56b00d10ffd4dcd6b068c2290ffabf0ae2d49789 (diff) | |
| download | linux-9bebd65443c1379f6643397bf4854d6f80a8358c.tar.xz | |
ASoC: dmaengine: Use iov_iter for process callback, too
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).
Reviewed-by: Mark Brown <broonie@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: Olivier Moysan <olivier.moysan@foss.st.com>
Cc: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20230815190136.8987-23-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | include/sound/dmaengine_pcm.h | 2 | ||||
| -rw-r--r-- | sound/soc/atmel/mchp-pdmc.c | 2 | ||||
| -rw-r--r-- | sound/soc/soc-generic-dmaengine-pcm.c | 5 | ||||
| -rw-r--r-- | 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 1a069f4cdcda..911bc334b41e 100644 --- a/sound/soc/atmel/mchp-pdmc.c +++ b/sound/soc/atmel/mchp-pdmc.c @@ -954,7 +954,7 @@ 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 f2cb75781566..ff2166525dbc 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) != bytes) 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); |