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ASoC: Intel: Skylake: Add MCLK configuration

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The SoC has MCLK output which is typically required by codecs.
The MCLK is controlled by DSP FW, so driver can configure that by
sending DMA_CONTROL IPC. The configuration for MCLK is present
in the endpoint blob.

So if block has this configuration, send IPC to DSP for MCLK
configuration. This is done by new function skl_dsp_set_dma_control()
which is invoked by BE prepare.

Signed-off-by: Dharageswari R <dharageswari.r@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Dharageswari.R
2016-02-05 12:19:07 +05:30
committed by Mark Brown
parent 718a42b5ea
commit c115fa5ec0
3 changed files with 83 additions and 0 deletions
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40
sound/soc/intel/skylake/skl-messages.c
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@@ -317,6 +317,46 @@ static void skl_setup_cpr_gateway_cfg(struct skl_sst *ctx,
skl_copy_copier_caps(mconfig, cpr_mconfig);
}
#define DMA_CONTROL_ID 5
int skl_dsp_set_dma_control(struct skl_sst *ctx, struct skl_module_cfg *mconfig)
{
struct skl_dma_control *dma_ctrl;
struct skl_i2s_config_blob config_blob;
struct skl_ipc_large_config_msg msg = {0};
int err = 0;
/*
* if blob size is same as capablity size, then no dma control
* present so return
*/
if (mconfig->formats_config.caps_size == sizeof(config_blob))
return 0;
msg.large_param_id = DMA_CONTROL_ID;
msg.param_data_size = sizeof(struct skl_dma_control) +
mconfig->formats_config.caps_size;
dma_ctrl = kzalloc(msg.param_data_size, GFP_KERNEL);
if (dma_ctrl == NULL)
return -ENOMEM;
dma_ctrl->node_id = skl_get_node_id(ctx, mconfig);
/* size in dwords */
dma_ctrl->config_length = sizeof(config_blob) / 4;
memcpy(dma_ctrl->config_data, mconfig->formats_config.caps,
mconfig->formats_config.caps_size);
err = skl_ipc_set_large_config(&ctx->ipc, &msg, (u32 *)dma_ctrl);
kfree(dma_ctrl);
return err;
}
static void skl_setup_out_format(struct skl_sst *ctx,
struct skl_module_cfg *mconfig,
struct skl_audio_data_format *out_fmt)