22f0d90a34
Device manufacturers frequently provide register sequences, usually not fully documented, to be run at startup in order to provide better defaults for devices (for example, improving performance in the light of silicon evaluation). Support such updates by allowing drivers to register update sets with the core. These updates will be written to the device immediately and will also be rewritten when the cache is synced. The assumption is that the reason for resyncing the cache will always be that the device has been powered off. If this turns out to not be the case then a separate operation can be provided. Currently the implementation only allows a single set of updates to be specified for a device, this could be extended in future. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> |
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| Kbuild | ||