dai: ALH set burst_elems

The burst length of GP-DMA should align to DMAT setting
in Audio Link Hub, or XRUN will happen. We don't change
DMAT setting since it is also used by cAVS FW.

Signed-off-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>

Author: RanderWang

src/audio/dai.c

@@ -747,6 +747,9 @@ static int dai_config(struct comp_dev *dev, struct sof_ipc_dai_config *config)
 		 */
 		dconfig->frame_fmt = SOF_IPC_FRAME_S32_LE;
 
+		dd->config.burst_elems =
+			dd->dai->plat_data.fifo[dai->direction].depth;
+
 		/* As with HDA, the DMA channel is assigned in runtime,
 		 * not during topology parsing.
 		 */

src/platform/cannonlake/include/platform/drivers/alh.h

@@ -84,6 +84,8 @@ static const uint8_t alh_handshake_map[64] = {
 	-1,	/* 63 - INVALID */
 };
 
+#define ALH_GPDMA_BURST_LENGTH	4
+
 #endif /* __PLATFORM_DRIVERS_ALH__ */
 
 #else

src/platform/icelake/include/platform/drivers/alh.h

@@ -84,6 +84,8 @@ static const uint8_t alh_handshake_map[64] = {
 	-1,	/* 63 - INVALID */
 };
 
+#define ALH_GPDMA_BURST_LENGTH	4
+
 #endif /* __PLATFORM_DRIVERS_ALH__ */
 
 #else

src/platform/intel/cavs/lib/dai.c

@@ -156,6 +156,14 @@ int dai_init(void)
 		alh[i].index = (i / DAI_NUM_ALH_BI_DIR_LINKS_GROUP) << 8 |
 			(i % DAI_NUM_ALH_BI_DIR_LINKS_GROUP);
 		alh[i].drv = &alh_driver;
+
+		/* set burst length to align with DMAT value in the
+		 * Audio Link Hub.
+		 */
+		alh[i].plat_data.fifo[SOF_IPC_STREAM_PLAYBACK].depth =
+			ALH_GPDMA_BURST_LENGTH;
+		alh[i].plat_data.fifo[SOF_IPC_STREAM_CAPTURE].depth =
+			ALH_GPDMA_BURST_LENGTH;
 		spinlock_init(&alh[i].lock);
 	}
 #endif

src/platform/tigerlake/include/platform/drivers/alh.h

@@ -84,6 +84,8 @@ static const uint8_t alh_handshake_map[64] = {
 	-1,	/* 63 - INVALID */
 };
 
+#define ALH_GPDMA_BURST_LENGTH	4
+
 #endif /* __PLATFORM_DRIVERS_ALH__ */
 
 #else