netdev - Re: [PATCH/RFC v2 net-next 3/4] ravb: Document binding for r8a7795 SoC

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Message-ID: <20150911085311.GA8547@verge.net.au>
Date:	Fri, 11 Sep 2015 17:53:12 +0900
From:	Simon Horman <horms@...ge.net.au>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Linux-sh list <linux-sh@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Magnus Damm <magnus.damm@...il.com>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	Kazuya Mizuguchi <kazuya.mizuguchi.ks@...esas.com>
Subject: Re: [PATCH/RFC v2 net-next 3/4] ravb: Document binding for r8a7795
 SoC

On Fri, Sep 11, 2015 at 10:41:31AM +0200, Geert Uytterhoeven wrote:
> Hi Simon,
> 
> On Fri, Sep 11, 2015 at 10:14 AM, Simon Horman <horms@...ge.net.au> wrote:
> >> > @@ -18,6 +21,9 @@ Required properties:
> >> >  Optional properties:
> >> >  - interrupt-parent: the phandle for the interrupt controller that services
> >> >                     interrupts for this device.
> >> > +- interrupt-names: One entry per interrupt named "ch%u".
> >> > +                  For the R8A7795 SoC this property is mandatory,
> >> > +                  and "ch0" through "ch24" are mandatory.
> >>
> >> This suggests the single multiplexed interrupt on R-Car Gen2 can be called
> >> "ch0". Is that what you want? I know the driver doesn't care.
> >
> > No, its not what I intended.
> >
> > I think its reasonable to allow the multiplexed interrupt to be named,
> > but to what I wonder. The documentation seems to call the interrupt
> > "EthernetAVB", which isn't very exciting.
> 
> Perhaps "mux", like I did for rspi, cfr.
> Documentation/devicetree/bindings/spi/spi-rspi.txt:
> 
>   - interrupts       : A list of interrupt-specifiers, one for each entry in
>                        interrupt-names.
>                        If interrupt-names is not present, an interrupt specifier
>                        for a single muxed interrupt.
>   - interrupt-names  : A list of interrupt names. Should contain (if present):
>                          - "error" for SPEI,
>                          - "rx" for SPRI,
>                          - "tx" to SPTI,
>                          - "mux" for a single muxed interrupt.

Thanks for for that example. "mux" sounds good to me.

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