linux-kernel - Re: [PATCH v9 25/33] dt-bindings: crypto: rockchip: convert to new driver bindings

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Date:   Fri, 9 Sep 2022 10:57:01 +0200
From:   LABBE Corentin <clabbe@...libre.com>
To:     Rob Herring <robh@...nel.org>
Cc:     heiko@...ech.de, herbert@...dor.apana.org.au, ardb@...nel.org,
        davem@...emloft.net, krzysztof.kozlowski+dt@...aro.org,
        mturquette@...libre.com, sboyd@...nel.org,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org
Subject: Re: [PATCH v9 25/33] dt-bindings: crypto: rockchip: convert to new
 driver bindings

Le Wed, Sep 07, 2022 at 03:38:53PM -0500, Rob Herring a écrit :
> On Thu, Sep 01, 2022 at 12:57:02PM +0000, Corentin Labbe wrote:
> > The latest addition to the rockchip crypto driver need to update the
> > driver bindings.
> 
> This sounds like you changed the driver, so change the binding. That 
> would be an ABI break. But it looks like you are adding support for new 
> h/w, so say that. Bindings aren't about a driver.
> 

Hello

Ok, I will change the commit log.

> > 
> > Signed-off-by: Corentin Labbe <clabbe@...libre.com>
> > ---
> >  .../crypto/rockchip,rk3288-crypto.yaml        | 79 +++++++++++++++++--
> >  1 file changed, 71 insertions(+), 8 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/crypto/rockchip,rk3288-crypto.yaml b/Documentation/devicetree/bindings/crypto/rockchip,rk3288-crypto.yaml
> > index 8a219d439d02..b7870a4cbdbe 100644
> > --- a/Documentation/devicetree/bindings/crypto/rockchip,rk3288-crypto.yaml
> > +++ b/Documentation/devicetree/bindings/crypto/rockchip,rk3288-crypto.yaml
> > @@ -13,6 +13,8 @@ properties:
> >    compatible:
> >      enum:
> >        - rockchip,rk3288-crypto
> > +      - rockchip,rk3328-crypto
> > +      - rockchip,rk3399-crypto
> >  
> >    reg:
> >      maxItems: 1
> > @@ -21,21 +23,82 @@ properties:
> >      maxItems: 1
> >  
> >    clocks:
> > +    minItems: 3
> >      maxItems: 4
> >  
> >    clock-names:
> > -    items:
> > -      - const: aclk
> > -      - const: hclk
> > -      - const: sclk
> > -      - const: apb_pclk
> > +    minItems: 3
> > +    maxItems: 4
> >  
> >    resets:
> > -    maxItems: 1
> > +    minItems: 1
> > +    maxItems: 3
> >  
> >    reset-names:
> > -    items:
> > -      - const: crypto-rst
> > +    minItems: 1
> > +    maxItems: 3
> > +
> > +allOf:
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            const: rockchip,rk3288-crypto
> > +    then:
> > +      properties:
> > +        clocks:
> > +          minItems: 4
> > +        clock-names:
> > +          items:
> > +            - const: aclk
> > +            - const: hclk
> > +            - const: sclk
> > +            - const: apb_pclk
> > +        resets:
> > +          maxItems: 1
> > +        reset-names:
> > +          items:
> > +            - const: crypto-rst
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            const: rockchip,rk3328-crypto
> > +    then:
> > +      properties:
> > +        clocks:
> > +          maxItems: 3
> > +        clock-names:
> > +          items:
> > +            - const: hclk_master
> > +            - const: hclk_slave
> > +            - const: sclk
> 
> Do we really need new names? Was 'aclk' not the bus master clock?

I follow name convention from dt-bindings/clock/rk3328-cru.h

> 
> If the clocks and resets aren't the same, then maybe these 2 new chips 
> should be their own binding.

I dont understand what you mean ?
You mean having a rk3288-crypto.yaml and a rk3328-crypto.yaml (which will be related to the same driver) ?

> > +        resets:
> > +          maxItems: 1
> > +        reset-names:
> > +          items:
> > +            - const: crypto-rst
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            const: rockchip,rk3399-crypto
> > +    then:
> > +      properties:
> > +        clocks:
> > +          maxItems: 3
> > +        clock-names:
> > +          items:
> > +            - const: hclk_master
> > +            - const: hclk_slave
> > +            - const: sclk
> > +        resets:
> > +          minItems: 3
> > +        reset-names:
> > +          items:
> > +            - const: rst_master
> > +            - const: rst_slave
> 
> 'rst_' is redundant, drop.
> 

I will fix it

Thanks for the review