On Tue, Jun 18, 2013 at 05:02:49PM +0200, Linus Walleij wrote: > Nowadays I would do the above with regmap_update_bits(). > > Mutual exclusion for read-modify-write of individual bits in a > register is one of those cases where doing a regmap over > a memory-mapped register range makes a lot of sense. > (drivers/mfd/syscon.c being a nice example) So, for that solution we need to have some kind of global regmap per register or somesuch. Then you run into regmap needing a struct device - well, with a shared register, which struct device do you use, or do you have to invent one? That sounds more heavy-weight than is really necessary. -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
