Re: [PATCH v2 1/9] i2c: prepare runtime PM support for I2C clientdevices

[Mark Brown]

On Fri, Sep 13, 2013 at 01:16:11PM +0300, Mika Westerberg wrote:
> On Fri, Sep 13, 2013 at 10:59:50AM +0100, Mark Brown wrote:

> > Accessing the bus isn't an issue for I2C outside of ACPI, the power
> > management of the device is totally disassociated from the bus and the
> > controller is responsible for ensuring it is available during transfers.

> Yes, but since we want to support ACPI as well, we must make sure that the
> adapter (and the associated controller) is available when client ->probe()
> is called.

Right, but this probably needs to be highlighted more since it's a very
surprising thing for I2C and is causing confusion.

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