On Tue, Dec 12, 2023 at 09:49:41PM +0100, Marc Kleine-Budde wrote:
> On 08.12.2023 17:12:24, Conor Dooley wrote:
> > From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
> >
> > 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@xxxxxxxxxxxxx>
> > ---
> > .../devicetree/bindings/net/can/microchip,mpfs-can.yaml | 7 +++++--
> > 1 file changed, 5 insertions(+), 2 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml b/Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml
> > index 45aa3de7cf01..05f680f15b17 100644
> > --- a/Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml
> > +++ b/Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml
> > @@ -24,7 +24,10 @@ properties:
> > maxItems: 1
> >
> > clocks:
> > - maxItems: 1
> > + maxItems: 2
> > + items:
> > + - description: AHB peripheral clock
> > + - description: CAN bus clock
>
> Do we we want to have a "clock-names" property, as we need the clock
> rate of the CAN bus clock.
We should not need the clock-names property to be able to get both of
the clocks. clk_bulk_get_all() for example should be usable here.
Cheers,
Conor.
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