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author | Takashi Iwai <tiwai@suse.de> | 2022-05-23 16:03:04 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2022-05-23 16:03:04 +0200 |
commit | 0163717ed5dec4fc3aaf937baa9f66f21ca11c1d (patch) | |
tree | b0618a944385d1d35bd829c9aa09eddb5c9633fa /sound/soc/soc-generic-dmaengine-pcm.c | |
parent | 1693e265e0a5dbe11fba21b48272dd15dbb71ec0 (diff) | |
parent | e5cd20e0d6713138444cc3f3f982712cf9a36143 (diff) | |
download | linux-0163717ed5dec4fc3aaf937baa9f66f21ca11c1d.tar.gz linux-0163717ed5dec4fc3aaf937baa9f66f21ca11c1d.tar.bz2 linux-0163717ed5dec4fc3aaf937baa9f66f21ca11c1d.zip |
Merge tag 'asoc-v5.19' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.19
This is quite a big update, partly due to the addition of some larger
drivers (more of which is to follow since at least the AVS driver is
still a work in progress) and partly due to Charles' work sorting out
our handling of endianness. As has been the case recently it's much
more about drivers than the core.
- Overhaul of endianness specification for data formats, avoiding
needless restrictions due to CODECs.
- Initial stages of Intel AVS driver merge.
- Introduction of v4 IPC mechanism for SOF.
- TDM mode support for AK4613.
- Support for Analog Devices ADAU1361, Cirrus Logic CS35L45, Maxim
MAX98396, MediaTek MT8186, NXP i.MX8 micfil and SAI interfaces,
nVidia Tegra186 ASRC, and Texas Instruments TAS2764 and TAS2780
Diffstat (limited to 'sound/soc/soc-generic-dmaengine-pcm.c')
-rw-r--r-- | sound/soc/soc-generic-dmaengine-pcm.c | 57 |
1 files changed, 25 insertions, 32 deletions
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c index 285441d6aeed..87858462bba9 100644 --- a/sound/soc/soc-generic-dmaengine-pcm.c +++ b/sound/soc/soc-generic-dmaengine-pcm.c @@ -79,29 +79,19 @@ static int dmaengine_pcm_hw_params(struct snd_soc_component *component, { struct dmaengine_pcm *pcm = soc_component_to_pcm(component); struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream); - int (*prepare_slave_config)(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct dma_slave_config *slave_config); struct dma_slave_config slave_config; + int ret; - memset(&slave_config, 0, sizeof(slave_config)); - - if (!pcm->config) - prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config; - else - prepare_slave_config = pcm->config->prepare_slave_config; + if (!pcm->config->prepare_slave_config) + return 0; - if (prepare_slave_config) { - int ret = prepare_slave_config(substream, params, &slave_config); - if (ret) - return ret; + memset(&slave_config, 0, sizeof(slave_config)); - ret = dmaengine_slave_config(chan, &slave_config); - if (ret) - return ret; - } + ret = pcm->config->prepare_slave_config(substream, params, &slave_config); + if (ret) + return ret; - return 0; + return dmaengine_slave_config(chan, &slave_config); } static int @@ -121,7 +111,7 @@ dmaengine_pcm_set_runtime_hwparams(struct snd_soc_component *component, return -EINVAL; } - if (pcm->config && pcm->config->pcm_hardware) + if (pcm->config->pcm_hardware) return snd_soc_set_runtime_hwparams(substream, pcm->config->pcm_hardware); @@ -188,7 +178,6 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel( { struct dmaengine_pcm *pcm = soc_component_to_pcm(component); struct snd_dmaengine_dai_dma_data *dma_data; - dma_filter_fn fn = NULL; if (rtd->num_cpus > 1) { dev_err(rtd->dev, @@ -201,13 +190,11 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel( if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) && pcm->chan[0]) return pcm->chan[0]; - if (pcm->config && pcm->config->compat_request_channel) + if (pcm->config->compat_request_channel) return pcm->config->compat_request_channel(rtd, substream); - if (pcm->config) - fn = pcm->config->compat_filter_fn; - - return snd_dmaengine_pcm_request_channel(fn, dma_data->filter_data); + return snd_dmaengine_pcm_request_channel(pcm->config->compat_filter_fn, + dma_data->filter_data); } static bool dmaengine_pcm_can_report_residue(struct device *dev, @@ -239,12 +226,12 @@ static int dmaengine_pcm_new(struct snd_soc_component *component, size_t max_buffer_size; unsigned int i; - if (config && config->prealloc_buffer_size) + if (config->prealloc_buffer_size) prealloc_buffer_size = config->prealloc_buffer_size; else prealloc_buffer_size = prealloc_buffer_size_kbytes * 1024; - if (config && config->pcm_hardware && config->pcm_hardware->buffer_bytes_max) + if (config->pcm_hardware && config->pcm_hardware->buffer_bytes_max) max_buffer_size = config->pcm_hardware->buffer_bytes_max; else max_buffer_size = SIZE_MAX; @@ -254,7 +241,7 @@ static int dmaengine_pcm_new(struct snd_soc_component *component, if (!substream) continue; - if (!pcm->chan[i] && config && config->chan_names[i]) + if (!pcm->chan[i] && config->chan_names[i]) pcm->chan[i] = dma_request_slave_channel(dev, config->chan_names[i]); @@ -367,10 +354,10 @@ static int dmaengine_pcm_request_chan_of(struct dmaengine_pcm *pcm, struct dma_chan *chan; if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_DT) || (!dev->of_node && - !(config && config->dma_dev && config->dma_dev->of_node))) + !(config->dma_dev && config->dma_dev->of_node))) return 0; - if (config && config->dma_dev) { + if (config->dma_dev) { /* * If this warning is seen, it probably means that your Linux * device structure does not match your HW device structure. @@ -387,7 +374,7 @@ static int dmaengine_pcm_request_chan_of(struct dmaengine_pcm *pcm, name = "rx-tx"; else name = dmaengine_pcm_dma_channel_names[i]; - if (config && config->chan_names[i]) + if (config->chan_names[i]) name = config->chan_names[i]; chan = dma_request_chan(dev, name); if (IS_ERR(chan)) { @@ -425,6 +412,10 @@ static void dmaengine_pcm_release_chan(struct dmaengine_pcm *pcm) } } +static const struct snd_dmaengine_pcm_config snd_dmaengine_pcm_default_config = { + .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, +}; + /** * snd_dmaengine_pcm_register - Register a dmaengine based PCM device * @dev: The parent device for the PCM device @@ -445,6 +436,8 @@ int snd_dmaengine_pcm_register(struct device *dev, #ifdef CONFIG_DEBUG_FS pcm->component.debugfs_prefix = "dma"; #endif + if (!config) + config = &snd_dmaengine_pcm_default_config; pcm->config = config; pcm->flags = flags; @@ -452,7 +445,7 @@ int snd_dmaengine_pcm_register(struct device *dev, if (ret) goto err_free_dma; - if (config && config->process) + if (config->process) driver = &dmaengine_pcm_component_process; else driver = &dmaengine_pcm_component; |