[PATCH v3 04/11] ASoC: jz4740-i2s: Handle independent FIFO flush bits

[Aidan MacDonald]

Mark Brown <broonie at kernel.org> writes:

> On Fri, Jul 08, 2022 at 11:42:57AM +0100, Aidan MacDonald wrote:
>> On the JZ4740, there is a single bit that flushes (empties) both
>> the transmit and receive FIFO. Later SoCs have independent flush
>> bits for each FIFO, which allows us to flush the right FIFO when
>> starting up a stream.
>> 
>> This also fixes a bug: since we were only setting the JZ4740's
>> flush bit, which corresponds to the TX FIFO flush bit on other
>> SoCs, other SoCs were not having their RX FIFO flushed at all.
>> 
>> Fixes: 967beb2e8777 ("ASoC: jz4740: Add jz4780 support")
>
> Fixes should generally be at the start of a patch series so they don't
> end up depending on other patches needlessly.

Okay then, I'll refactor it to allow for easier backporting.