Hi Shawn,
> The dspi3 is used as slave controller on vf610-bk4, and the default
> '#address-cells = <1>;' setting in vfxxx.dtsi causes the following DTC
> warning.
>
> DTC arch/arm/boot/dts/vf610-bk4.dtb
> ../arch/arm/boot/dts/vfxxx.dtsi:550.24-563.6: Warning
> (spi_bus_bridge): /soc/aips-bus@40080000/spi@400ad000: incorrect
> #address-cells for SPI bus also defined
> at ../arch/arm/boot/dts/vf610-bk4.dts:107.8-119.3
> arch/arm/boot/dts/vf610-bk4.dtb: Warning (spi_bus_reg): Failed
> prerequisite 'spi_bus_bridge'
>
> For spi device used as slave controller, '#address-cells' should be 0.
> Let's overwrite the property in vf610-bk4.dts to fix the warning.
>
> Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> Signed-off-by: Shawn Guo <shawnguo@xxxxxxxxxx>
> ---
> arch/arm/boot/dts/vf610-bk4.dts | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/vf610-bk4.dts
> b/arch/arm/boot/dts/vf610-bk4.dts index 689c8930dce3..b08d561d6748
> 100644 --- a/arch/arm/boot/dts/vf610-bk4.dts
> +++ b/arch/arm/boot/dts/vf610-bk4.dts
> @@ -110,11 +110,11 @@
> bus-num = <3>;
> status = "okay";
> spi-slave;
> + #address-cells = <0>;
>
> - slave@0 {
> + slave {
> compatible = "lwn,bk4";
> spi-max-frequency = <30000000>;
> - reg = <0>;
> };
> };
>
Thanks for fixing this problem,
Reviewed-by: Lukasz Majewski <lukma@xxxxxxx>
Best regards,
Lukasz Majewski
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma@xxxxxxx
Attachment:
pgplLFNTqofTa.pgp
Description: OpenPGP digital signature
