Il 24/10/24 11:25, Karl.Li ha scritto:
From: Karl Li <karl.li@xxxxxxxxxxxx> Within the MediaTek APU subsystem, a message passing mechanism is constructed on top of the mailbox system. The mailbox only has limited space for each message. The MTK APU firmware expects the message header from the mailbox, while the message body is passed through some fixed shared memory. The mailbox interrupt also serves as a mutex for the shared memory. Thus the interrupt may only be cleared after the message is handled. Add a new sleepable rx callback for mailbox clients for cases where handling the incoming data needs to sleep. Signed-off-by: Karl Li <karl.li@xxxxxxxxxxxx>
As said in the review of the ADSP MBOX driver, I really don't think that you need an extra callback. Regards, Angelo
