Re: [PATCH 03/10] tty: pxa: configure pin

On Tue, Oct 23, 2012 at 1:58 PM, Mark Brown
[off-list ref] wrote:

One problem
is that we don't have a home for the SoC integration so we're trying to
shove it all into the drivers which just leads to a stack of pointless
boilerplate when the driver isn't actually doing anything beyond the
basic pattern of turning everything off when it goes idle and turning it
on again when it needs to do something.  Having to open code that stuff
in the drivers and then deal with the stubbing and error handling so the
error handling in the drivers is painful.  There's also another axis
where things aren't part of a SoC but are separate devices so you want
to carry things along with the driver rather than have a separate bit of
code which is required to glue things into the platform.

I agree. I'm thinking about the approach of adding helpers into the
PM runtime layer so state handling is centralized, while only the
event trigger goes into the driver. Basically it's just the implicit
triggers from pm_runtime_[get|put][[_sync] that is causing
problems.

Yours,
Linus Walleij