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SubjectRe: [PATCH v2 3/3] Documentation: mfd: Add binding document for S2MPA01
On Wed, Feb 12, 2014 at 06:10:43PM +0000, Mark Rutland wrote:
> On Thu, Jan 09, 2014 at 11:22:34AM +0000, Sachin Kamat wrote:

> > +Required properties:
> > +- compatible: Should be "samsung,s2mpa01-pmic".
> > +- reg: Specifies the I2C slave address of the PMIC block. It should be 0x66.

> Is the slave address not per-instance in I2C? If not why must is be 0x66?

I2C devices tend to have a very limited selection of addresses they can
support, a small number selected by pin strapping is common but a single
fixed address is also common. Each device on the bus will have a unique
address but there may not be any selectability.
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