Re: [PATCH v2 3/6] arm64: dts: fsd: add sysreg device node

[Sam Protsenko]

Hi Vivek,

On Wed, 9 Nov 2022 at 11:54, Vivek Yadav <vivek.2311@xxxxxxxxxxx> wrote:
>
> From: Sriranjani P <sriranjani.p@xxxxxxxxxxx>
>
> Add SYSREG controller device node, which is available in PERIC and FSYS0
> block of FSD SoC.
>
> Signed-off-by: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>
> Signed-off-by: Pankaj Kumar Dubey <pankaj.dubey@xxxxxxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Signed-off-by: Sriranjani P <sriranjani.p@xxxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/tesla/fsd.dtsi | 10 ++++++++++
>  1 file changed, 10 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/tesla/fsd.dtsi b/arch/arm64/boot/dts/tesla/fsd.dtsi
> index f35bc5a288c2..3d8ebbfc27f4 100644
> --- a/arch/arm64/boot/dts/tesla/fsd.dtsi
> +++ b/arch/arm64/boot/dts/tesla/fsd.dtsi
> @@ -518,6 +518,16 @@
>                                 "dout_cmu_fsys1_shared0div4";
>                 };
>
> +               sysreg_peric: system-controller@14030000 {
> +                       compatible = "tesla,sysreg_peric", "syscon";
> +                       reg = <0x0 0x14030000 0x0 0x1000>;

Probably not related to this particular patch, but does the "reg"
really have to have those extra 0x0s? Why it can't be just:

    reg = <0x14030000 0x1000>;

That comment applies to the whole dts/dtsi. Looks like #address-cells
or #size-cells are bigger than they should be, or I missing something?

> +               };
> +
> +               sysreg_fsys0: system-controller@15030000 {
> +                       compatible = "tesla,sysreg_fsys0", "syscon";
> +                       reg = <0x0 0x15030000 0x0 0x1000>;
> +               };
> +
>                 mdma0: dma-controller@10100000 {
>                         compatible = "arm,pl330", "arm,primecell";
>                         reg = <0x0 0x10100000 0x0 0x1000>;
> --
> 2.17.1
>