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Date: Mon, 22 Jan 2024 14:21:04 +0000
From: Conor Dooley <conor@kernel.org>
To: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: linux-riscv@lists.infradead.org,
	Conor Dooley <conor.dooley@microchip.com>,
	Daire McNamara <daire.mcnamara@microchip.com>,
	Wolfgang Grandegger <wg@grandegger.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>, linux-can@vger.kernel.org,
	netdev@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org
Subject: Re: [PATCH v2 2/7] dt-bindings: can: mpfs: add missing required clock
Message-ID: <20240122-cruelly-dainty-002081f0beb2@spud>
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On Mon, Jan 22, 2024 at 02:13:16PM +0100, Marc Kleine-Budde wrote:
> On 22.01.2024 12:19:50, Conor Dooley wrote:
> > From: Conor Dooley <conor.dooley@microchip.com>
> >=20
> > 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.
> >=20
> > Cautionary tale in adding bindings without having implemented a real
> > user for them perhaps.
> >=20
> > Fixes: c878d518d7b6 ("dt-bindings: can: mpfs: document the mpfs CAN con=
troller")
> > Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
> > ---
> >  .../devicetree/bindings/net/can/microchip,mpfs-can.yaml     | 6 ++++--
> >  1 file changed, 4 insertions(+), 2 deletions(-)
> >=20
> > diff --git a/Documentation/devicetree/bindings/net/can/microchip,mpfs-c=
an.yaml b/Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml
> > index 45aa3de7cf01..01e4d4a54df6 100644
> > --- a/Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml
> > +++ b/Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml
> > @@ -24,7 +24,9 @@ properties:
> >      maxItems: 1
> > =20
> >    clocks:
> > -    maxItems: 1
> > +    items:
> > +      - description: AHB peripheral clock
> > +      - description: CAN bus clock
>=20
> What about adding clock-names, so that the order can be checked
> automatically?

I don't personally care for doing so, but if your heart is set on having
them, then sure.

Cheers,
Conor.

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