On Fri, Aug 17, 2018 at 02:53:37PM +0100, Kieran Bingham wrote:
> Hi Eugeniu,
>
> Thank you for the patch,
>
> On 12/08/18 14:31, Eugeniu Rosca wrote:
> > According to R-Car Gen3 HW manual rev1.00, R-Car M3-N has two CAN
> > interfaces, similar to H3, M3-W and other SoCs from the same family.
> >
> > Add CAN placeholder nodes to avoid below DTC errors:
> > Error: arch/arm64/boot/dts/renesas/ulcb-kf.dtsi:19.1-6 Label or path can0 not found
> > Error: arch/arm64/boot/dts/renesas/ulcb-kf.dtsi:25.1-6 Label or path can1 not found
> >
> > These errors occur *after* the addition of r8a77965-m3nulcb-kf.dts.
> > Fix them beforehand.
> >
> > CAN support is inspired from below commits:
> > - v4.7 commit 308b7e4ba62e ("arm64: dts: r8a7795: Add CAN support")
> > - v4.11 commit 909c16252415 ("arm64: dts: r8a7796: Add CAN support")
> > - v4.12 commit bec0948e810f ("arm64: dts: r8a7796: Add reset control properties")
> >
> > Signed-off-by: Eugeniu Rosca <erosca@xxxxxxxxxxxxxx>
>
> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
Thanks Eugeniu and Kieran,
I have applied this for v4.20.
> > ---
> > Changes in v2:
> > - [Kieran Bingham] Improved commit description:
> > - Referenced the newer HW manual rev1.00 instead of rev0.55E.
> > - Kept the "true story" behind the patch. Just made it more clear.
> > - [Geert Uytterhoeven] Replaced CAN0 and CAN1 nodes with placeholders
> > (no CAN testing was done to validate the DTS configuration).
> > ---
> > arch/arm64/boot/dts/renesas/r8a77965.dtsi | 16 ++++++++++++++++
> > 1 file changed, 16 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/renesas/r8a77965.dtsi b/arch/arm64/boot/dts/renesas/r8a77965.dtsi
> > index 486aecacb22a..4da479d3c226 100644
> > --- a/arch/arm64/boot/dts/renesas/r8a77965.dtsi
> > +++ b/arch/arm64/boot/dts/renesas/r8a77965.dtsi
> > @@ -656,6 +656,22 @@
> > status = "disabled";
> > };
> >
> > + can0: can@e6c30000 {
> > + compatible = "renesas,can-r8a77965",
> > + "renesas,rcar-gen3-can";
> > + reg = <0 0xe6c30000 0 0x1000>;
> > + /* placeholder */
> > + status = "disabled";
> > + };
>
> This is probably more detail than is needed for a placeholder, but it
> looks correct so I think this is fine.
Agreed.
>
> --
> Kieran
>
>
>
> > +
> > + can1: can@e6c38000 {
> > + compatible = "renesas,can-r8a77965",
> > + "renesas,rcar-gen3-can";
> > + reg = <0 0xe6c38000 0 0x1000>;
> > + /* placeholder */
> > + status = "disabled";
> > + };
> > +
> > pwm0: pwm@e6e30000 {
> > compatible = "renesas,pwm-r8a77965", "renesas,pwm-rcar";
> > reg = <0 0xe6e30000 0 8>;
> >
>
