Re: [PATCH v9 08/10] serial: sc16is7xx: add call to get rs485 DT flags and properties

[Greg KH]

On Thu, Aug 03, 2023 at 10:38:14AM -0400, Hugo Villeneuve wrote:
> On Mon, 31 Jul 2023 17:59:14 +0200
> Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> 
> > On Tue, Jul 25, 2023 at 10:23:40AM -0400, Hugo Villeneuve wrote:
> > > From: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx>
> > > 
> > > Add call to uart_get_rs485_mode() to probe for RS485 flags and
> > > properties from device tree.
> > 
> > Again, you are saying what you are doing, but not why.  I have no hint
> > as to if this is a bugfix, or a new features, or something else?
> > 
> > thanks,
> > 
> > greg k-h
> 
> Hi Greg,
> I could change the commit message to:
> 
> ---------
> serial: sc16is7xx: add missing support for rs485 devicetree properties
> 
> Retrieve rs485 devicetree properties on registration of sc16is7xx ports
> in case they are attached to an rs485 transceiver.
> ---------
> 
> I don't think that it should be considered as a bug fix, but maybe as a
> missing feature.
> 
> And does it mean that it should also go to older (stable) kernels then?
> If yes, then do I need to add the "Fixes" tag?

Does it fix a problem?  If so, yes, it should go to older kernels.  If
not, then no.

thanks,

greg k-h