Harden APL/GLK hardware support

[plbossart]

The current driver does not implement all the recommended hardware setups

• 1. firmware download needs to be retried
• 2. [APL][GLK] harden: power-gating and clock gating needs to be disabled during firmware download #776 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. [APL][GLK] harden: delays after programming registers (and/or loops to check status changes) #777 delays after programming registers (and/or loops to check status changes)
• 6. [APL][GLK] harden: set I2S as slave before enabling DSP #778 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]

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

[ranj063]

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

[plbossart]

@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.