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ASoC: Intel: Skylake: Fix dma buffer size calculation 

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@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ramesh Babu 2017-06-19 11:59:20 +05:30 committed by Mark Brown
parent 939df3ada7
commit f6e6ab1d16
1 changed files with 25 additions and 4 deletions
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29
sound/soc/intel/skylake/skl-messages.c
View File

@ -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;