diff options
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/atmel/atmel-pcm-dma.c | 3 | ||||
| -rw-r--r-- | sound/soc/cirrus/ep93xx-pcm.c | 1 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_sai.c | 3 | ||||
| -rw-r--r-- | sound/soc/soc-generic-dmaengine-pcm.c | 25 | ||||
| -rw-r--r-- | sound/soc/ux500/ux500_pcm.c | 1 |
5 files changed, 16 insertions, 17 deletions
diff --git a/sound/soc/atmel/atmel-pcm-dma.c b/sound/soc/atmel/atmel-pcm-dma.c index b6625c8..dd57a9e 100644 --- a/sound/soc/atmel/atmel-pcm-dma.c +++ b/sound/soc/atmel/atmel-pcm-dma.c @@ -124,8 +124,7 @@ static const struct snd_dmaengine_pcm_config atmel_dmaengine_pcm_config = { int atmel_pcm_dma_platform_register(struct device *dev) { - return snd_dmaengine_pcm_register(dev, &atmel_dmaengine_pcm_config, - SND_DMAENGINE_PCM_FLAG_NO_RESIDUE); + return snd_dmaengine_pcm_register(dev, &atmel_dmaengine_pcm_config, 0); } EXPORT_SYMBOL(atmel_pcm_dma_platform_register); diff --git a/sound/soc/cirrus/ep93xx-pcm.c b/sound/soc/cirrus/ep93xx-pcm.c index 5f66447..67a7333 100644 --- a/sound/soc/cirrus/ep93xx-pcm.c +++ b/sound/soc/cirrus/ep93xx-pcm.c @@ -60,7 +60,6 @@ int devm_ep93xx_pcm_platform_register(struct device *dev) { return devm_snd_dmaengine_pcm_register(dev, &ep93xx_dmaengine_pcm_config, - SND_DMAENGINE_PCM_FLAG_NO_RESIDUE | SND_DMAENGINE_PCM_FLAG_NO_DT | SND_DMAENGINE_PCM_FLAG_COMPAT); } diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c index ec79c3d..ee2671b 100644 --- a/sound/soc/fsl/fsl_sai.c +++ b/sound/soc/fsl/fsl_sai.c @@ -664,8 +664,7 @@ static int fsl_sai_probe(struct platform_device *pdev) if (sai->sai_on_imx) return imx_pcm_dma_init(pdev); else - return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, - SND_DMAENGINE_PCM_FLAG_NO_RESIDUE); + return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); } static const struct of_device_id fsl_sai_ids[] = { diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c index c9917ca..6fd1906 100644 --- a/sound/soc/soc-generic-dmaengine-pcm.c +++ b/sound/soc/soc-generic-dmaengine-pcm.c @@ -24,6 +24,12 @@ #include <sound/dmaengine_pcm.h> +/* + * The platforms dmaengine driver does not support reporting the amount of + * bytes that are still left to transfer. + */ +#define SND_DMAENGINE_PCM_FLAG_NO_RESIDUE BIT(31) + struct dmaengine_pcm { struct dma_chan *chan[SNDRV_PCM_STREAM_LAST + 1]; const struct snd_dmaengine_pcm_config *config; @@ -222,14 +228,18 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel( return snd_dmaengine_pcm_request_channel(fn, dma_data->filter_data); } -static bool dmaengine_pcm_can_report_residue(struct dma_chan *chan) +static bool dmaengine_pcm_can_report_residue(struct device *dev, + struct dma_chan *chan) { struct dma_slave_caps dma_caps; int ret; ret = dma_get_slave_caps(chan, &dma_caps); - if (ret != 0) - return true; + if (ret != 0) { + dev_warn(dev, "Failed to get DMA channel capabilities, falling back to period counting: %d\n", + ret); + return false; + } if (dma_caps.residue_granularity == DMA_RESIDUE_GRANULARITY_DESCRIPTOR) return false; @@ -289,14 +299,7 @@ static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd) if (ret) return ret; - /* - * This will only return false if we know for sure that at least - * one channel does not support residue reporting. If the DMA - * driver does not implement the slave_caps API we rely having - * the NO_RESIDUE flag set manually in case residue reporting is - * not supported. - */ - if (!dmaengine_pcm_can_report_residue(pcm->chan[i])) + if (!dmaengine_pcm_can_report_residue(dev, pcm->chan[i])) pcm->flags |= SND_DMAENGINE_PCM_FLAG_NO_RESIDUE; } diff --git a/sound/soc/ux500/ux500_pcm.c b/sound/soc/ux500/ux500_pcm.c index 51a66a8..f12c01d 100644 --- a/sound/soc/ux500/ux500_pcm.c +++ b/sound/soc/ux500/ux500_pcm.c @@ -147,7 +147,6 @@ int ux500_pcm_register_platform(struct platform_device *pdev) pcm_config = &ux500_dmaengine_pcm_config; ret = snd_dmaengine_pcm_register(&pdev->dev, pcm_config, - SND_DMAENGINE_PCM_FLAG_NO_RESIDUE | SND_DMAENGINE_PCM_FLAG_COMPAT); if (ret < 0) { dev_err(&pdev->dev, |
