[RFC PATCH] Add bridge driver to connect sensors to CIO2 device via software nodes on ACPI platforms

Andy Shevchenko andriy.shevchenko at linux.intel.com
Fri Sep 18 13:07:39 UTC 2020

On Fri, Sep 18, 2020 at 10:51:57AM +0300, Sakari Ailus wrote:
> On Thu, Sep 17, 2020 at 03:45:14PM +0300, Andy Shevchenko wrote:
> > On Thu, Sep 17, 2020 at 11:52:28AM +0100, Dan Scally wrote:
> > > On 17/09/2020 11:33, Sakari Ailus wrote:
> > > > a module and not enlarge everyone's kernel, and the initialisation would at
> > > > the same time take place before the rest of what the CIO2 driver does in
> > > > probe.
> > > I thought of that as well, but wasn't sure which was preferable. I can
> > > compress it into the CIO2 driver though sure.
> > 
> > Sakari, I tend to agree with Dan and have the board file separated from the
> > driver and even framework.
> And it'll be linked to the kernel binary then I suppose?

Solely depends to your Kconfig dependencies and declaration.

>From code perspective you may do it before enumeration of the certain device or
after with reprobe.

> I don't have a strong opinion either way, just thought that this will
> affect anyone using x86 machines, whether or not they have IPU3. I guess it
> could be compiled in if the ipu3-cio2 driver is enabled?

Of course!

With Best Regards,
Andy Shevchenko

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