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Date: Tue, 20 Jul 2021 12:22:37 +0200 From: Philipp Zabel <p.zabel@...gutronix.de> To: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>, Geert Uytterhoeven <geert+renesas@...der.be>, Rob Herring <robh+dt@...nel.org>, Fabrizio Castro <fabrizio.castro.jz@...esas.com>, Wolfgang Grandegger <wg@...ndegger.com>, Marc Kleine-Budde <mkl@...gutronix.de>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org> Cc: linux-can@...r.kernel.org, netdev@...r.kernel.org, devicetree@...r.kernel.org, linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org, linux-renesas-soc@...r.kernel.org, Prabhakar <prabhakar.csengg@...il.com>, Biju Das <biju.das.jz@...renesas.com> Subject: Re: [PATCH v2 1/5] dt-bindings: net: can: renesas,rcar-canfd: Document RZ/G2L SoC 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@...renesas.com> > Reviewed-by: Biju Das <biju.das.jz@...renesas.com> > --- > .../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. 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. regards Philipp
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