On Tue, Feb 07, 2012 at 03:39:24PM +0200, Peter Ujfalusi wrote: > In the codec driver I have one 'shadow' register which does not exist on > the HW. I'm going to need to have access to that shadow register's bits > in the future transparently. Alternatively just rewrite the code for that to use a variable in the driver private data. > I was wondering if we could add support to regmap for such SW only > registers. This would only make sens if the cache is enabled. We could > have a callback let's say shadow_reg() in remap_config struct. If it is > a shadow reg we never reach out for the HW and operate only on the cache. > Is this something we can add to regmap? That just sounds far too icky - I'm really not happy that people have been doing that in ASoC TBH, it just makes everything more tricky than it should be. It save a little bit of effort with the control but just pushes that complexity elsewhere where you're not expecting it.
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