On Wed, Jan 12, 2022 at 3:43 AM allen-kh.cheng <allen-kh.cheng@xxxxxxxxxxxx> wrote: > > From: Allen-KH Cheng <Allen-KH.Cheng@xxxxxxxxxxxx> > > Some of mediatek processors contain > the Tensilica HiFix DSP for audio processing. > > The communication between Host CPU and DSP firmware is > taking place using a shared memory area for message passing. > > ADSP IPC protocol offers (send/recv) interfaces using > mediatek-mailbox APIs. > > We use two mbox channels to implement a request-reply protocol. > > Reviewed-by: Tzung-Bi Shih <tzungbi@xxxxxxxxxx> > Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@xxxxxxxxxxxx> Reviewed-by: Curtis Malainey <cujomalainey@xxxxxxxxxxxx>