Re: [PATCH v2 0/2] soundwire: Remove redundant zeroing of page registers

On 23-01-23, 16:49, Richard Fitzgerald wrote:

Writing zero to the page registers after each message transaction can add up to a lot of overhead for codecs that need to transfer large amount of data - for example a firmware download.

There's no spec reason I can see for this zeroing. The page registers are only used for a paged address. The bus code uses a non-paged address for registers in page 0. It always writes the page registers at the start of a paged transaction.

If this zeroing was a workaround for anything, let me know and I will re-implement the zeroing as a quirk that can be enabled only when it is necessary.

Applied, thanks