Re: platform/i2c busses: pm runtime and system sleep

[Rafael J. Wysocki]

On Friday, December 17, 2010, Mark Brown wrote:
> On Thu, Dec 16, 2010 at 11:56:57PM +0530, Rabin Vincent wrote:
> 
> > There seem to be some differences between the generic ops and the i2c
> > and platform busses' implementations of the interaction between runtime
> > PM and system sleep:
> 
> >   (1) The platform bus does not implement the
> >       don't-call-pm->suspend()-if pm_runtime_suspended()-returns-true
> >       functionality implemented by the generic ops and i2c.
> 
> This is platform lagging behind I2C in implementation - both originally 
> did what platform does and then I2C was updated and platform wasn't.
> 
> It'd be really good if this could all be factored out into the PM core,
> we're going to have to do the same thing for at least SPI as well and
> possibly some other buses :/

So how exactly the PM core is supposed to include those things?

There certainly are other buses that don't want to do them.

Thanks,
Rafael
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