Re: [PATCH] Documentation: ACPI: fix port numbering example

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On 20-03-10 10:23, Sakari Ailus wrote:
> Marco,
> 
> On Tue, Mar 10, 2020 at 07:14:58AM +0100, Marco Felsch wrote:
> > Hi Sakari,
> > 
> > On 20-03-09 15:37, Sakari Ailus wrote:
> > > Hi Marco,
> > > 
> > > Thanks for the patch.
> > > 
> > > On Thu, Mar 05, 2020 at 03:56:01PM +0100, Marco Felsch wrote:
> > > > If I understood it right the ports should be numbered using the "port"
> > > > property and not the "reg" property. I stumbled over it during
> > > > extending the v4l2_fwnode_parse_link() helper which also use the "port"
> > > > property.
> > > > 
> > > > Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
> > > > ---
> > > > Hi,
> > > > 
> > > > I don't know if this is right since I'm not a ACPI guy *sorry*
> > > > Anyway reading the doc description and the v4l2_fwnode_parse_link() code
> > > > give me a 2/3 chance.
> > > 
> > > Looking at the documentation, this indeed seems to be a bug in the
> > > documentation. The code is right, as is the example. As the property was
> > > previously called "port", there is no actual harm even if someone just read
> > > the documentation, and not the examples or the code parsing this.
> > > 
> > > The buggy patch is a4138e7c12287268348cc2dcad414a62c515d77a .
> > > 
> > > Could you use this instead?
> > 
> > Of course, thanks for the clarification. It seems that we need to update the
> > v4l2_fwnode_parse_link() too?
> 
> Well, yes. This has escaped me because there have been no ACPI users of
> that function. In fact, there are only two users in total. That suggests it
> may not be that useful after all as other drivers do the same job without.

3 with the _new_ v4l2-fwnode-connectors ;-)

> Feel free to write a patch. :-)

K, I will do so.

Regards,
  Marco



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