linux-kernel - Re: [PATCH RESEND v1 2/7] dt-bindings: can: mpfs: add missing required clock

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Date:   Fri, 8 Dec 2023 15:42:30 -0600
From:   Rob Herring <robh@...nel.org>
To:     Conor Dooley <conor@...nel.org>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Jakub Kicinski <kuba@...nel.org>, linux-can@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org,
        Daire McNamara <daire.mcnamara@...rochip.com>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        linux-riscv@...ts.infradead.org,
        Eric Dumazet <edumazet@...gle.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paolo Abeni <pabeni@...hat.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH RESEND v1 2/7] dt-bindings: can: mpfs: add missing
 required clock

On Fri, Dec 08, 2023 at 07:25:39PM +0000, Conor Dooley wrote:
> On Fri, Dec 08, 2023 at 12:31:00PM -0600, Rob Herring wrote:
> > 
> > On Fri, 08 Dec 2023 17:12:24 +0000, Conor Dooley wrote:
> > > From: Conor Dooley <conor.dooley@...rochip.com>
> > > 
> > > The CAN controller on PolarFire SoC has an AHB peripheral clock _and_ a
> > > CAN bus clock. The bus clock was omitted when the binding was written,
> > > but is required for operation. Make up for lost time and add it.
> > > 
> > > Cautionary tale in adding bindings without having implemented a real
> > > user for them perhaps.
> > > 
> > > Fixes: c878d518d7b6 ("dt-bindings: can: mpfs: document the mpfs CAN controller")
> > > Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
> > > ---
> > >  .../devicetree/bindings/net/can/microchip,mpfs-can.yaml    | 7 +++++--
> > >  1 file changed, 5 insertions(+), 2 deletions(-)
> > > 
> > 
> > My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> > on your patch (DT_CHECKER_FLAGS is new in v5.13):
> > 
> > yamllint warnings/errors:
> > 
> > dtschema/dtc warnings/errors:
> > /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml: properties:clocks: {'maxItems': 2, 'items': [{'description': 'AHB peripheral clock'}, {'description': 'CAN bus clock'}]} should not be valid under {'required': ['maxItems']}
> > 	hint: "maxItems" is not needed with an "items" list
> > 	from schema $id: http://devicetree.org/meta-schemas/items.yaml#
> 
> 
> Oh dear, me of all people.

Happens to the best of us. :)