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| author |   Baolin Wang <baolin.wang@linaro.org> | 2019-01-29 16:04:45 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2019-01-29 18:10:12 +0000 |
| commit | 42fea318e1d19c0214ed4336d19f512c5d78cc3b (patch) | |
| tree | b78a1156b2bc5f724182fd5d2d1fc7eacb37d1ed /sound/soc/sprd/sprd-pcm-dma.h | |
| parent | dt-bindings: ASoC: Add Spreadtrum DMA platform documentation (diff) | |
| download | wireguard-linux-42fea318e1d19c0214ed4336d19f512c5d78cc3b.tar.xz wireguard-linux-42fea318e1d19c0214ed4336d19f512c5d78cc3b.zip | |
ASoC: sprd: Add Spreadtrum audio DMA platfrom driver
The Spreadtrum DMA engine uses the link-list mode to support audio playback
or capture, thus this patch adds audio DMA platform support for CPU DAI to
trigger DMA link-list transfer.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sprd/sprd-pcm-dma.h')
| -rw-r--r-- | sound/soc/sprd/sprd-pcm-dma.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sound/soc/sprd/sprd-pcm-dma.h b/sound/soc/sprd/sprd-pcm-dma.h new file mode 100644 index 000000000000..d85a34f1461d --- /dev/null +++ b/sound/soc/sprd/sprd-pcm-dma.h @@ -0,0 +1,15 @@ +// SPDX-License-Identifier: GPL-2.0 + +#ifndef __SPRD_PCM_DMA_H +#define __SPRD_PCM_DMA_H + +#define SPRD_PCM_CHANNEL_MAX 2 + +struct sprd_pcm_dma_params { + dma_addr_t dev_phys[SPRD_PCM_CHANNEL_MAX]; + u32 datawidth[SPRD_PCM_CHANNEL_MAX]; + u32 fragment_len[SPRD_PCM_CHANNEL_MAX]; + const char *chan_name[SPRD_PCM_CHANNEL_MAX]; +}; + +#endif /* __SPRD_PCM_DMA_H */ |