[alsa-devel] [PATCH 4/5] ASoC: fsl_ssi: use flat regmap cache

[Mark Brown]

On Thu, Sep 22, 2016 at 05:27:42PM +0200, Marek Vasut wrote:
> On 09/22/2016 04:37 PM, Maciej S. Szmigiero wrote:

> > There are three possible solutions:
> > 1) Go back to RB tree cache (revert patch 4) and debug the lockdep warning,
> > 2) Keep the flat cache introduced by patch 4 but debug the oops at
> > cache init time (while keeping defaults read from hardware),
> > 3) Keep both patches and risk the same issues that were previously
> > caused by hardcoded register defaults in driver.
> > However, Marek says the device works fine for him with the patches.

> I believe switching to flat cache is harmless and it should be a better
> mode for devices with small mmio address spaces. After some discussion
> on IRC, I believe [1] should resolve the RBTREE crash (?).

So, can we get a clear decision on this after testing?  The discussion
here and the discussion on IRC are a bit disjointed and I'd like to make
sure we end up with something that definitely works.
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