Re: [PATCH 1/6] dt-bindings: arm: renesas: Ignore the schema for RISC-V arch

[Krzysztof Kozlowski]

On 27/07/2022 11:00, Lad, Prabhakar wrote:
> Hi Krzysztof,
> 
> On Wed, Jul 27, 2022 at 9:53 AM Krzysztof Kozlowski
> <krzysztof.kozlowski@xxxxxxxxxx> wrote:
>>
>> On 26/07/2022 20:06, Lad Prabhakar wrote:
>>> Ignore the ARM renesas.yaml schema if the board is RZ/Five SMARC EVK
>>> (RISC-V arch).
>>>
>>> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>>> ---
>>>  Documentation/devicetree/bindings/arm/renesas.yaml | 9 +++++++++
>>>  1 file changed, 9 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/arm/renesas.yaml b/Documentation/devicetree/bindings/arm/renesas.yaml
>>> index ff80152f092f..f646df1a23af 100644
>>> --- a/Documentation/devicetree/bindings/arm/renesas.yaml
>>> +++ b/Documentation/devicetree/bindings/arm/renesas.yaml
>>> @@ -9,6 +9,15 @@ title: Renesas SH-Mobile, R-Mobile, and R-Car Platform Device Tree Bindings
>>>  maintainers:
>>>    - Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
>>>
>>> +# We want to ignore this schema if the board is of RISC-V arch
>>> +select:
>>> +  not:
>>> +    properties:
>>> +      compatible:
>>> +        contains:
>>> +          items:
>>> +            - const: renesas,r9a07g043f01
>>
>> Second issue - why not renesas,r9a07g043?
>>
> We have two R9A07G043 SOC'S one is based on ARM64 and other on RISC-V.
> 
> RZ/G2UL ARM64:
> Type-1 Part Number: R9A07G043U11GBG#BC0
> Type-2 Part Number: R9A07G043U12GBG#BC0
> 
> RZ/Five RISCV:
> 13 x 13 mm Package Part Number: R9A07G043F01GBG#BC0
> 
> So to differentiate in ARM schema I am using  renesas,r9a07g043f01.

What is the point to keep then r9a07g043 fallback? The two SoCs are not
compatible at all, so they must not use the same fallback.

Best regards,
Krzysztof