Hi Philipp,
Thank you for the review.
On Tue, Jul 20, 2021 at 11:22 AM Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> wrote:
>
> Hi Lad,
>
> On Mon, 2021-07-19 at 15:38 +0100, Lad Prabhakar wrote:
> > Add CANFD binding documentation for Renesas RZ/G2L SoC.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> > Reviewed-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> > ---
> > .../bindings/net/can/renesas,rcar-canfd.yaml | 66 +++++++++++++++++--
> > 1 file changed, 60 insertions(+), 6 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
> > index 0b33ba9ccb47..4fb6dd370904 100644
> > --- a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
> > +++ b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
> > @@ -30,13 +30,15 @@ properties:
> > - renesas,r8a77995-canfd # R-Car D3
> > - const: renesas,rcar-gen3-canfd # R-Car Gen3 and RZ/G2
> >
> > + - items:
> > + - enum:
> > + - renesas,r9a07g044-canfd # RZ/G2{L,LC}
> > + - const: renesas,rzg2l-canfd # RZ/G2L family
> > +
> > reg:
> > maxItems: 1
> >
> > - interrupts:
> > - items:
> > - - description: Channel interrupt
> > - - description: Global interrupt
> > + interrupts: true
> >
> > clocks:
> > maxItems: 3
> > @@ -50,8 +52,7 @@ properties:
> > power-domains:
> > maxItems: 1
> >
> > - resets:
> > - maxItems: 1
> > + resets: true
> >
> > renesas,no-can-fd:
> > $ref: /schemas/types.yaml#/definitions/flag
> > @@ -91,6 +92,59 @@ required:
> > - channel0
> > - channel1
> >
> > +if:
> > + properties:
> > + compatible:
> > + contains:
> > + enum:
> > + - renesas,rzg2l-canfd
> > +then:
> > + properties:
> > + interrupts:
> > + items:
> > + - description: CAN global error interrupt
> > + - description: CAN receive FIFO interrupt
> > + - description: CAN0 error interrupt
> > + - description: CAN0 transmit interrupt
> > + - description: CAN0 transmit/receive FIFO receive completion interrupt
> > + - description: CAN1 error interrupt
> > + - description: CAN1 transmit interrupt
> > + - description: CAN1 transmit/receive FIFO receive completion interrupt
> > +
> > + interrupt-names:
> > + items:
> > + - const: g_error
> > + - const: g_rx_fifo
> > + - const: can0_error
> > + - const: can0_tx
> > + - const: can0_tx_rx_fifo_receive_completion
> > + - const: can1_error
> > + - const: can1_tx
> > + - const: can1_tx_rx_fifo_receive_completion
> > +
> > + resets:
> > + items:
> > + - description: CANFD_RSTP_N
> > + - description: CANFD_RSTC_N
>
> Do you know what the "P" and "C" stands for? It would be nice if the
> description could tell us what the reset lines are used for.
>
unfortunately the HW manual does not mention anything about "P" and "C" :(
> I would prefer if you used these names (or shortened versions, for
> example "rstp_n", "rstc_n") as "reset-names" and let the driver
> reference the resets by name instead of by index.
>
OK will do that and maxItems:2 for resets.
@Geert, for R-Car Gen3 does "canfd_rst" (as it's a module reset)
sounds good for reset-names? Or do you have any other suggestions?
Cheers,
Prabhakar
