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@xxxxxxxxx> --- sound/soc/intel/avs/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/intel/avs/core.c b/sound/soc/intel/avs/core.c index 664f87c33e9d..4234adeb3d1c 100644 --- a/sound/soc/intel/avs/core.c +++ b/sound/soc/intel/avs/core.c @@ -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); -- 2.25.1
