linux-kernel - Re: [PATCH v8 05/10] dt-bindings: sc16is7xx: Add property to change GPIO function

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Date:   Wed, 7 Jun 2023 10:41:00 -0400
From:   Hugo Villeneuve <hugo@...ovil.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     gregkh@...uxfoundation.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        jirislaby@...nel.org, jringle@...dpoint.com,
        jesse.sung@...onical.com, isaac.true@...onical.com,
        l.perczak@...lintechnologies.com, tomasz.mon@...lingroup.com,
        linux-serial@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        Hugo Villeneuve <hvilleneuve@...onoff.com>,
        stable@...r.kernel.org, Conor Dooley <conor.dooley@...rochip.com>,
        Lech Perczak <lech.perczak@...lingroup.com>
Subject: Re: [PATCH v8 05/10] dt-bindings: sc16is7xx: Add property to change
 GPIO function

On Wed, 7 Jun 2023 16:30:26 +0200
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> wrote:

> On 07/06/2023 16:05, Hugo Villeneuve wrote:
> > From: Hugo Villeneuve <hvilleneuve@...onoff.com>
> > 
> > Some variants in this series of UART controllers have GPIO pins that
> > are shared between GPIO and modem control lines.
> > 
> > The pin mux mode (GPIO or modem control lines) can be set for each
> > ports (channels) supported by the variant.
> > 
> > This adds a property to the device tree to set the GPIO pin mux to
> > modem control lines on selected ports if needed.
> > 
> > Cc: <stable@...r.kernel.org> # 6.1.x
> > Signed-off-by: Hugo Villeneuve <hvilleneuve@...onoff.com>
> > Acked-by: Conor Dooley <conor.dooley@...rochip.com>
> > Reviewed-by: Lech Perczak <lech.perczak@...lingroup.com>
> > ---
> >  .../bindings/serial/nxp,sc16is7xx.txt         | 46 +++++++++++++++++++
> >  1 file changed, 46 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
> > index 0fa8e3e43bf8..1a7e4bff0456 100644
> > --- a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
> > +++ b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
> > @@ -23,6 +23,9 @@ Optional properties:
> >      1 = active low.
> >  - irda-mode-ports: An array that lists the indices of the port that
> >  		   should operate in IrDA mode.
> > +- nxp,modem-control-line-ports: An array that lists the indices of the port that
> > +				should have shared GPIO lines configured as
> > +				modem control lines.
> >  
> >  Example:
> >          sc16is750: sc16is750@51 {
> > @@ -35,6 +38,26 @@ Example:
> >                  #gpio-cells = <2>;
> >          };
> >  
> > +	sc16is752: sc16is752@53 {
> 
> Since you keep sending new versions, fix the names. nNode names should
> be generic. See also explanation and list of examples in DT specification:
> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation

Hi,
by the way, I do not "keep sending new versions" just for the fun of
it...

Even after reading your link, I cannot see what is wrong with that
name.

You are the first one since V1 to think it is inappropriate.

Please suggest what the name should be.

Hugo.