[RFC/RFT PATCH] Revert "ASoC: fsl_esai: ETDR and TX0~5 registers are non volatile"

[Mark Brown]

On Thu, Jun 06, 2019 at 04:01:05PM -0700, Nicolin Chen wrote:
> This reverts commit 8973112aa41b8ad956a5b47f2fe17bc2a5cf2645.

Please use subject lines matching the style for the subsystem.  This
makes it easier for people to identify relevant patches.

> 1) Though ETDR and TX0~5 are not volatile but write-only registers,
>    they should not be cached either. According to the definition of
>    "volatile_reg", one should be put in the volatile list if it can
>    not be cached.

There's no problem with caching write only registers, having a cache
allows one to do read/modify/write cycles on them and can help with
debugging.  The original reason we had cache code in ASoC was for write
only devices.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: not available
URL: <http://lists.ozlabs.org/pipermail/linuxppc-dev/attachments/20190607/844cb8e3/attachment.sig>