Messages in this thread | | | Date | Fri, 13 Sep 2013 11:31:52 +0100 | From | Mark Brown <> | Subject | Re: [PATCH v2 1/9] i2c: prepare runtime PM support for I2C client devices |
| |
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. [unhandled content-type:application/pgp-signature] | |