UART Route setting

Andrew Jeffery andrew at aj.id.au
Thu Aug 2 13:33:31 AEST 2018


On Thu, 2 Aug 2018, at 12:50, Oskar Senft wrote:
> Interesting suggestion, that looks promising, thank you?
> 
> What's the state of that driver? I.e. where do we expect it to land?

If you think the bmc-misc-ctrl series is useful, please reply to the
upstream thread to outline all of your use-cases. There's a lot of push-
back on using the devicetree to describe these features, and I haven't
had a lot of feedback on the acceptability of the rest (driver itself,
userspace ABI).

The more evidence we have of this being necessary/useful the better.

Cheers,

Andrew

> 
> Thanks
> Oskar.
> 
> On Wed, Aug 1, 2018, 10:12 PM Lei YU <mine260309 at gmail.com> wrote:
> 
> > On Thu, Aug 2, 2018 at 9:55 AM Oskar Senft <osk at google.com> wrote:
> > >
> > > Hi Andrew
> > >
> > > Thanks for the suggestion. I see that the register would map quite
> > nicely to pinmux. However, the ability to change the configuration from
> > user space is critical. How could that be done via pinmux?
> >
> > I believe Andrew Jeffery's [bmc-misc-ctr][1] driver is perfect for this
> > requirement:
> > 1. You can define related registers in dts and expose as sysfs attributes
> > 2. User space is able to read/write the sysfs attributes to do what you
> > need
> >    to configure.
> >
> > [1]: https://patchwork.ozlabs.org/cover/942322/
> >


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