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ASoC: Intel: avs: Block IPC channel on suspend 

To allow for driver's filesystem interfaces e.g.: debugfs, to be touched
even when the device is asleep, mark IPC-channel as blocked when the
device is suspended. This causes any invocation of said interfaces that
do not toggle PM themselves to gracefully fail with "Operation not
permitted" message.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220707124153.1858249-7-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Rojewski 2022-07-07 14:41:47 +02:00 committed by Mark Brown
parent 00566ad4ce
commit daa36bbcd7
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sound/soc/intel/avs/core.c
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@ -556,6 +556,7 @@ static int __maybe_unused avs_suspend_common(struct avs_dev *adev)
return AVS_IPC_RET(ret);
}
avs_ipc_block(adev->ipc);
avs_dsp_op(adev, int_control, false);
snd_hdac_ext_bus_ppcap_int_enable(bus, false);