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ASoC: Intel: Skylake: Reset DSP pipe when host/link DMA is reset

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In case of XRUN recovery PCM prepare will be called. In this case
Host/Link DMAs are reset and reconfigured, hence the corresponding
FE/BE pipe needs to be reset in order to get to a clean state.

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jeeja KP
2016-06-03 18:29:34 +05:30
committed by Mark Brown
parent de15996eab
commit 2004432f94
3 changed files with 44 additions and 1 deletions
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23
sound/soc/intel/skylake/skl-messages.c
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@@ -1130,6 +1130,29 @@ int skl_stop_pipe(struct skl_sst *ctx, struct skl_pipe *pipe)
return 0;
}
/*
* Reset the pipeline by sending set pipe state IPC this will reset the DMA
* from the DSP side
*/
int skl_reset_pipe(struct skl_sst *ctx, struct skl_pipe *pipe)
{
int ret;
/* If pipe was not created in FW, do not try to pause or delete */
if (pipe->state < SKL_PIPE_PAUSED)
return 0;
ret = skl_set_pipe_state(ctx, pipe, PPL_RESET);
if (ret < 0) {
dev_dbg(ctx->dev, "Failed to reset pipe ret=%d\n", ret);
return ret;
}
pipe->state = SKL_PIPE_RESET;
return 0;
}
/* Algo parameter set helper function */
int skl_set_module_params(struct skl_sst *ctx, u32 *params, int size,
u32 param_id, struct skl_module_cfg *mcfg)