From: Ramesh Babu <ramesh.babu@xxxxxxxxx>
DMA buffer size for gateway copier will be calculated based on:
For host DMA copier:
Input buffer size (ibs) for output direction (playback)
Output buffer size (obs) for input direction (capture)
For link DMA copier:
IBS for input direction (capture)
OBS for output direction (playback)
Update the driver to use the above.
Signed-off-by: Ramesh Babu <ramesh.babu@xxxxxxxxx>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@xxxxxxxxx>
---
sound/soc/intel/skylake/skl-messages.c | 29 +++++++++++++++++++++++++----
1 file changed, 25 insertions(+), 4 deletions(-)
diff --git a/sound/soc/intel/skylake/skl-messages.c b/sound/soc/intel/skylake/skl-messages.c
index ab1adc0c9cc3..7063b451b109 100644
--- a/sound/soc/intel/skylake/skl-messages.c
+++ b/sound/soc/intel/skylake/skl-messages.c
@@ -507,6 +507,8 @@ static void skl_setup_cpr_gateway_cfg(struct skl_sst *ctx,
struct skl_module_cfg *mconfig,
struct skl_cpr_cfg *cpr_mconfig)
{
+ u32 dma_io_buf;
+
cpr_mconfig->gtw_cfg.node_id = skl_get_node_id(ctx, mconfig);
if (cpr_mconfig->gtw_cfg.node_id == SKL_NON_GATEWAY_CPR_NODE_ID) {
@@ -514,10 +516,29 @@ static void skl_setup_cpr_gateway_cfg(struct skl_sst *ctx,
return;
}
- if (SKL_CONN_SOURCE == mconfig->hw_conn_type)
- cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * mconfig->obs;
- else
- cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * mconfig->ibs;
+ switch (mconfig->hw_conn_type) {
+ case SKL_CONN_SOURCE:
+ if (mconfig->dev_type == SKL_DEVICE_HDAHOST)
+ dma_io_buf = mconfig->ibs;
+ else
+ dma_io_buf = mconfig->obs;
+ break;
+
+ case SKL_CONN_SINK:
+ if (mconfig->dev_type == SKL_DEVICE_HDAHOST)
+ dma_io_buf = mconfig->obs;
+ else
+ dma_io_buf = mconfig->ibs;
+ break;
+
+ default:
+ dev_warn(ctx->dev, "wrong connection type: %d\n",
+ mconfig->hw_conn_type);
+ return;
+ }
+
+ cpr_mconfig->gtw_cfg.dma_buffer_size =
+ mconfig->dma_buffer_size * dma_io_buf;
cpr_mconfig->cpr_feature_mask = 0;
cpr_mconfig->gtw_cfg.config_length = 0;
--
1.9.1
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