Harden APL/GLK hardware support about linux HOT 6 CLOSED

This is an enhancement, so change label from bug to 'enhancement', still P2 to get attention.

from linux.

The current driver does not implement all the recommended hardware setups

• 1. firmware download needs to be retried
• 2. power-gating and clock gating needs to be disabled during firmware download
• 3. some bits are not reprogrammed on resume
• 4. watchdog and recovery needed
• 5. delays after programming registers (and/or loops to check status changes)
• 6. set I2S as slave before enabling DSP
• 7. avoid DMA resume capability on capture

Adding a blanket bug to cover all these improvements. Filed as a bug since the current code is not robust enough.
@mengdonglin the ones that I checked are already done

from linux.

@wenqingfu can we get someone assigned to this? We know our programming sequences don't fully follow recommended guidelines, let's fix those known opens, at least the opens 2, 5, 6 and keep watchdog/recovery and DAM resume capability aside.

from linux.

@zhuyingjiang can you clarify what remains to be done for this issue?

from linux.

@plbossart The remains are:
4. watchdog and recovery needed
7. avoid DMA resume capability on capture

The 5. #777 delays after programming registers (and/or loops to check status changes)
is almost been done after my PR #1020 #997 is merged.
Still there may need one more PR for "set DUM bit on device power up"

from linux.

we are not going to support DMA resume, so forking the firmware recovery as a separate issue #1675

from linux.