ASoC: SOF: Extend ChainDMA and DSPless mode to LNL+

Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>:

For both ChainDMA and DSPless mode the requirement is that the link must
be serviced by HD-DMA.
On pre Lunar Lake platforms this was only valid for HDAudio links but with
Lunar Lake all link types now serviced by HD-DMA.

This allows us to enable ChainDMA and DSPless mode for SoundWire links as
well.

1 files changed, 9 insertions, 0 deletions

diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index 5755c997a9de..d453a4ce3b21 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -157,6 +157,13 @@ struct sof_firmware {
 	u32 payload_offset;
 };
 
+enum sof_dai_access {
+	SOF_DAI_DSP_ACCESS,	/* access from DSP only */
+	SOF_DAI_HOST_ACCESS,	/* access from host only */
+
+	SOF_DAI_ACCESS_NUM
+};
+
 /*
  * SOF DSP HW abstraction operations.
  * Used to abstract DSP HW architecture and any IO busses between host CPU
@@ -338,6 +345,8 @@ struct snd_sof_dsp_ops {
 	struct snd_soc_dai_driver *drv;
 	int num_drv;
 
+	bool (*is_chain_dma_supported)(struct snd_sof_dev *sdev, u32 dai_type); /* optional */
+
 	/* ALSA HW info flags, will be stored in snd_pcm_runtime.hw.info */
 	u32 hw_info;