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ASoC: Intel: bxtn: Update DSP core state in D0

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In system suspend, firmware needs to be re-downloaded as IMR is cleared.
When firmware is downloaded in D0, core state is not set to running
state causing instability with subsequent D0-D3 cycles.

So set the core state correctly during D0 and check the DSP core state
if not in reset to set the DSP to D3.

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jeeja KP 2017-03-13 22:11:26 +05:30 committed by Mark Brown
parent 5518af9f97
commit 1fb344a33a
2 changed files with 5 additions and 2 deletions
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1
sound/soc/intel/skylake/bxt-sst.c
View File

@ -446,6 +446,7 @@ static int bxt_set_dsp_D0(struct sst_dsp *ctx, unsigned int core_id)
return ret;
}
}
skl->cores.state[core_id] = SKL_DSP_RUNNING;
return ret;
}

6
sound/soc/intel/skylake/skl-sst-dsp.c
View File

@ -355,12 +355,13 @@ int skl_dsp_get_core(struct sst_dsp *ctx, unsigned int core_id)
ret = ctx->fw_ops.set_state_D0(ctx, core_id);
if (ret < 0) {
dev_err(ctx->dev, "unable to get core%d\n", core_id);
return ret;
goto out;
}
}
skl->cores.usage_count[core_id]++;
out:
dev_dbg(ctx->dev, "core id %d state %d usage_count %d\n",
core_id, skl->cores.state[core_id],
skl->cores.usage_count[core_id]);
@ -379,7 +380,8 @@ int skl_dsp_put_core(struct sst_dsp *ctx, unsigned int core_id)
return -EINVAL;
}
if (--skl->cores.usage_count[core_id] == 0) {
if ((--skl->cores.usage_count[core_id] == 0) &&
(skl->cores.state[core_id] != SKL_DSP_RESET)) {
ret = ctx->fw_ops.set_state_D3(ctx, core_id);
if (ret < 0) {
dev_err(ctx->dev, "unable to put core %d: %d\n",