system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-07-22 11:10:46 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

ASoC: dmaengine_pcm: Allow passing component name via config

Browse source 
At the moment we cannot instantiate two dmaengine_pcms with the same
parent device, as the components will be named the same, leading to
conflicts.

Add 'name' field to the snd_dmaengine_pcm_config, and use that (if
defined) as the component name instead of deriving the component name
from the device.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://msgid.link/r/20240319-xilinx-dp-audio-v2-1-92d6d3a7ca7e@ideasonboard.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Tomi Valkeinen 2024-03-19 10:22:36 +02:00 committed by Mark Brown
parent 4cece76496
commit cee28113db
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
3 changed files with 10 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
include/sound/dmaengine_pcm.h
View file

@ -118,6 +118,7 @@ int snd_dmaengine_pcm_refine_runtime_hwparams(
* which do not use devicetree.
* @process: Callback used to apply processing on samples transferred from/to
* user space.
* @name: Component name. If null, dev_name will be used.
* @compat_filter_fn: Will be used as the filter function when requesting a
* channel for platforms which do not use devicetree. The filter parameter
* will be the DAI's DMA data.
@ -143,6 +144,7 @@ struct snd_dmaengine_pcm_config {
int (*process)(struct snd_pcm_substream *substream,
int channel, unsigned long hwoff,
unsigned long bytes);
const char *name;
dma_filter_fn compat_filter_fn;
struct device *dma_dev;
const char *chan_names[SNDRV_PCM_STREAM_LAST + 1];

8
sound/soc/soc-core.c
View file

@ -2796,10 +2796,12 @@ int snd_soc_component_initialize(struct snd_soc_component *component,
INIT_LIST_HEAD(&component->list);
mutex_init(&component->io_mutex);
component->name = fmt_single_name(dev, &component->id);
if (!component->name) {
dev_err(dev, "ASoC: Failed to allocate name\n");
return -ENOMEM;
component->name = fmt_single_name(dev, &component->id);
if (!component->name) {
dev_err(dev, "ASoC: Failed to allocate name\n");
return -ENOMEM;
}
}
component->dev = dev;

3
sound/soc/soc-generic-dmaengine-pcm.c
View file

@ -441,6 +441,9 @@ int snd_dmaengine_pcm_register(struct device *dev,
pcm->config = config;
pcm->flags = flags;
if (config->name)
pcm->component.name = config->name;
ret = dmaengine_pcm_request_chan_of(pcm, dev, config);
if (ret)
goto err_free_dma;