From 42fea318e1d19c0214ed4336d19f512c5d78cc3b Mon Sep 17 00:00:00 2001 From: Baolin Wang Date: Tue, 29 Jan 2019 16:04:45 +0800 Subject: 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 Signed-off-by: Mark Brown --- sound/soc/sprd/sprd-pcm-dma.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 sound/soc/sprd/sprd-pcm-dma.h (limited to 'sound/soc/sprd/sprd-pcm-dma.h') 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 */ -- cgit v1.2.3