Hi Jacopo, Thank you for the patch. On Thu, Apr 15, 2021 at 02:25:59PM +0200, Jacopo Mondi wrote: > Declare port@0 in the csi40 device node and leave it un-connected. > Each board .dts file will connect the port as it requires. > > Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx> The port exists at the hardware level, so including it here sounds good. The DT binding even makes the port mandatory :-) Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > --- > arch/arm64/boot/dts/renesas/r8a77970.dtsi | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi b/arch/arm64/boot/dts/renesas/r8a77970.dtsi > index 5a5d5649332a..e8f6352c3665 100644 > --- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi > +++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi > @@ -1106,6 +1106,10 @@ ports { > #address-cells = <1>; > #size-cells = <0>; > > + port@0 { > + reg = <0>; > + }; > + > port@1 { > #address-cells = <1>; > #size-cells = <0>; -- Regards, Laurent Pinchart