Re: [alsa-devel] [PATCH 1/3] ASoC: alc5623: Convert codec->hw_read to regmap_read

On Fri, Oct 14, 2011 at 07:29:33AM +0800, Axel Lin wrote:

I check the regmap code, it seems cache_bypsss is only set if map->cache_type == REGCACHE_NONE or by regcache_cache_bypass().

That's in regmap. Any ASoC drivers which haven't been converted to directly use regmap will still use the ASoC copy of the cache code.

•   regcache_cache_bypass(codec->control_data, true);
  

•   for (i = 0 ; i < codec->driver->reg_cache_size ; i += step) {
  

•           regmap_read(codec->control_data, i, &val);
  

•           cache[i] = val;
  

•   }
  

•   regcache_cache_bypass(codec->control_data, false);
  

This is what a driver which uses regmap directly should do.