Re: [PATCH v13 05/25] v4l: fwnode: Support generic parsing of graph endpoints in a device

[Laurent Pinchart <laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org>]

Hi Sakari,

On Tuesday, 19 September 2017 15:11:32 EEST Sakari Ailus wrote:
> On Tue, Sep 19, 2017 at 02:35:01PM +0300, Laurent Pinchart wrote:
> > On Friday, 15 September 2017 17:17:04 EEST Sakari Ailus wrote:
> >> Add two functions for parsing devices graph endpoints:
> >> v4l2_async_notifier_parse_fwnode_endpoints and
> >> v4l2_async_notifier_parse_fwnode_endpoints_by_port. The former iterates
> >> over all endpoints whereas the latter only iterates over the endpoints
> >> in a given port.
> >> 
> >> The former is mostly useful for existing drivers that currently
> >> implement the iteration over all the endpoints themselves whereas the
> >> latter is especially intended for devices with both sinks and sources:
> >> async sub-devices for external devices connected to the device's sources
> >> will have already been set up, or they are part of the master device.
> > 
> > Did you mean s/or they/as they/ ?
> 
> No. There are two options here: either the sub-devices a sub-device is
> connected to (through a graph endpoint) is instantiated through the async
> framework *or* through the master device driver. But not by both of them at
> the same time.

The message is then contradicting itself:

"async sub-devices for external devices connected to the device's sources will 
have already been set up, or they are part of the master device."

They refers to "async sub-devices". If they're part of the master device, 
they're not async sub-devices.

-- 
Regards,

Laurent Pinchart

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