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Message-ID: <277004ed-3b6b-4ee5-39e4-beb75a272e60@linaro.org>
Date:   Thu, 10 Nov 2022 13:11:42 +0100
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Subject: Re: [PATCH v2 1/6] dt-bindings: Document the SYSREG specific
 compatibles found on FSD SoC
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To:     Vivek Yadav <vivek.2311@samsung.com>, rcsekar@samsung.com,
        krzysztof.kozlowski+dt@linaro.org, wg@grandegger.com,
        mkl@pengutronix.de, davem@davemloft.net, edumazet@google.com,
        kuba@kernel.org, pabeni@redhat.com, pankaj.dubey@samsung.com,
        ravi.patel@samsung.com, alim.akhtar@samsung.com,
        linux-fsd@tesla.com, robh+dt@kernel.org
Cc:     linux-can@vger.kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org,
        aswani.reddy@samsung.com, sriranjani.p@samsung.com
References: <20221109100928.109478-1-vivek.2311@samsung.com>
 <CGME20221109100245epcas5p38a01aed025f491d39a09508ebcdcef84@epcas5p3.samsung.com>
 <20221109100928.109478-2-vivek.2311@samsung.com>
 <709daf8b-a58e-9247-c5d8-f3be3e60fe70@linaro.org>
 <000001d8f4f6$1c7e96e0$557bc4a0$@samsung.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <000001d8f4f6$1c7e96e0$557bc4a0$@samsung.com>
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On 10/11/2022 12:18, Vivek Yadav wrote:
>>> +maintainers:
>>> +  - Alim Akhtar <alim.akhtar@samsung.com>
>>> +
>>> +description: |
>>> +  This is a system control registers block, providing multiple low
>>> +level
>>> +  platform functions like board detection and identification,
>>> +software
>>> +  interrupt generation.
>>> +
>>> +properties:
>>> +  compatible:
>>> +    oneOf:
>>
>> No need for oneOf.
>>
> Removing this results into dt_binding_check error, so this is required.

No, this is not required. You do not have more than one condition for oneOf.

>>> +      - items:
>>> +          - enum:
>>> +              - tesla,sysreg_fsys0
>>> +              - tesla,sysreg_peric
>>
>> From where did you get underscores in compatibles?
>>
> I have seen in MCAN Driver <drivers/net/can/m_can/m_can_platform.c> and also too many other yaml files.
> Do you have any ref standard guideline of compatible which says underscore is not allowed.

git grep compatible arch/arm64/boot/dts/exynos/ | grep _
git grep compatible arch/arm/boot/dts/exynos* | grep _

Both give 0 results. For few other SoCs there such cases but that's
really, really exception. Drop underscores.


Best regards,
Krzysztof