[alsa-devel] [PATCH] ASoC: Suppress restore of default register values for rbtree cache sync
lrg at ti.com
Fri Jun 3 18:29:32 CEST 2011
On 03/06/11 16:37, Mark Brown wrote:
> Currently the rbtree code will write out the entire register map when
> doing a cache sync which is wasteful and will slow things down. Check
> to see if the value we're about to write is the default and don't bother
> restoring it if it is, either the value will have been retained or the
> device will have been reset and holds the value already.
> We should really store the defaults in the nodes but this resolves the
> immediate issue.
> Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg at ti.com>
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