Thankyou for the comments. On 08/05/13 16:01, Mark Brown wrote: > On Wed, May 08, 2013 at 04:50:22PM +0200, Arnd Bergmann wrote: > >>> In many cases a single syconf register contains bits related to multiple >>> devices, and therefore it need to be shared across multiple drivers at >>> bit level. The same IP block can have different syscon mappings on >>> different SOCs. >> My feeling is that syscon is the wrong place for this functionality, >> since regmap already handles (some of?) these issues. If you need >> additional synchronization, it's probably best to extend regmap >> as needed so other code besides syscon can take advantage of that >> as well. > This sounds like regmap_update_bits() ought to be all that's needed. Ultimately the syscon_write use the regmap_update_bits, however we really want is the flexibility in using/referring the syscon registers/bits in both device-trees and non-device tree cases. The reason for these APIs, is the extent of syscon usage is very high in ST set-top-box parts. Without these new APIs, its very difficult to pass this information to the drivers. Thanks, srini -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
