Hi Linus,

On Fri, May 31, 2013 at 01:55:56PM +0200, Linus Walleij wrote:
[...]

But I find no good examples in the kernel on how to grab a
referenced syscon node and use the regmap API to read/write
registers :-(

Dong: do you have some example to point at for this?

No too much in the upstream kernel.
But i think you can see:
arch/arm/mach-imx/mach-imx6q.c
arch/arm/mach-imx/anatop.c
drivers/regulator/anatop-regulator.c

Regards
Dong Aisheng