netdev - Re: [PATCH net-next v2 5/5] dt-bindings: net: altera: tse: add an optional pcs register range

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Date:   Tue, 30 Aug 2022 21:18:28 +0200
From:   Maxime Chevallier <maxime.chevallier@...tlin.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     davem@...emloft.net, Rob Herring <robh+dt@...nel.org>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        thomas.petazzoni@...tlin.com, Andrew Lunn <andrew@...n.ch>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org
Subject: Re: [PATCH net-next v2 5/5] dt-bindings: net: altera: tse: add an
 optional pcs register range

On Tue, 30 Aug 2022 20:14:52 +0300
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> wrote:

> On 30/08/2022 12:55, Maxime Chevallier wrote:
> > Some implementations of the TSE have their PCS as an external bloc,
> > exposed at its own register range. Document this, and add a new
> > example showing a case using the pcs and the new phylink conversion
> > to connect an sfp port to a TSE mac.
> > 
> > Signed-off-by: Maxime Chevallier <maxime.chevallier@...tlin.com>
> > ---
> > V1->V2 :
> >  - Fixed example
> > 
> >  .../devicetree/bindings/net/altr,tse.yaml     | 29
> > ++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/net/altr,tse.yaml
> > b/Documentation/devicetree/bindings/net/altr,tse.yaml index
> > 1676e13b8c64..4b314861a831 100644 ---
> > a/Documentation/devicetree/bindings/net/altr,tse.yaml +++
> > b/Documentation/devicetree/bindings/net/altr,tse.yaml @@ -39,6
> > +39,7 @@ allOf: properties:
> >          reg:
> >            minItems: 6
> > +          maxItems: 7
> >          reg-names:
> >            minItems: 6
> >            items:
> > @@ -48,6 +49,7 @@ allOf:
> >              - const: rx_resp
> >              - const: tx_csr
> >              - const: tx_desc
> > +            - const: pcs
> >  
> >  properties:
> >    compatible:
> > @@ -58,7 +60,7 @@ properties:
> >  
> >    reg:
> >      minItems: 4
> > -    maxItems: 6
> > +    maxItems: 7
> >  
> >    reg-names:
> >      minItems: 4
> > @@ -69,6 +71,7 @@ properties:
> >        - const: rx_resp
> >        - const: tx_csr
> >        - const: tx_desc
> > +      - const: pcs
> >        - const: s1
> >    
> 
> So now 8 items?

I'll also remove that. My understanding was that on top of the
allOf:if/then, I was supposed to re-list all possible values. I got
that wrong, so that's not needed at all.

> 
> >    interrupts:
> > @@ -122,6 +125,30 @@ required:
> >  unevaluatedProperties: false
> >  
> >  examples:
> > +  - |
> > +    tse_sub_0: ethernet@...00000 {
> > +        compatible = "altr,tse-msgdma-1.0";
> > +        reg = <0xc0100000 0x00000400>,
> > +              <0xc0101000 0x00000020>,
> > +              <0xc0102000 0x00000020>,
> > +              <0xc0103000 0x00000008>,
> > +              <0xc0104000 0x00000020>,
> > +              <0xc0105000 0x00000020>,
> > +              <0xc0106000 0x00000100>;
> > +        reg-names = "control_port", "rx_csr", "rx_desc",
> > "rx_resp", "tx_csr", "tx_desc", "pcs";
> > +        interrupt-parent = <&intc>;
> > +        interrupts = <0 44 4>,<0 45 4>;
> > +        interrupt-names = "rx_irq","tx_irq";
> > +        rx-fifo-depth = <2048>;
> > +        tx-fifo-depth = <2048>;
> > +        max-frame-size = <1500>;
> > +        local-mac-address = [ 00 0C ED 00 00 02 ];  
> 
> 00 00 00 00 00 00
> (easier to spot that it is invalid)

Ack, thanks !

Best regards,

Maxime

> 
> Best regards,
> Krzysztof