netdev - Re: [PATCH 1/2] dt-bindings: net: rockchip-dwmac: add rk3568 xpcs compatible

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Date:   Tue, 29 Nov 2022 09:51:34 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Chukun Pan <amadeus@....edu.cn>,
        "David S . Miller" <davem@...emloft.net>
Cc:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        David Wu <david.wu@...k-chips.com>,
        Rob Herring <robh+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] dt-bindings: net: rockchip-dwmac: add rk3568 xpcs
 compatible

On 29/11/2022 09:49, Krzysztof Kozlowski wrote:
> On 29/11/2022 08:27, Chukun Pan wrote:
>> The gmac of RK3568 supports RGMII/SGMII/QSGMII interface.
>> This patch adds a compatible string for the required clock.
>>
>> Signed-off-by: Chukun Pan <amadeus@....edu.cn>
>> ---
>>  Documentation/devicetree/bindings/net/rockchip-dwmac.yaml | 6 ++++++
>>  1 file changed, 6 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
>> index 42fb72b6909d..36b1e82212e7 100644
>> --- a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
>> +++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
>> @@ -68,6 +68,7 @@ properties:
>>          - mac_clk_rx
>>          - aclk_mac
>>          - pclk_mac
>> +        - pclk_xpcs
>>          - clk_mac_ref
>>          - clk_mac_refout
>>          - clk_mac_speed
>> @@ -90,6 +91,11 @@ properties:
>>        The phandle of the syscon node for the peripheral general register file.
>>      $ref: /schemas/types.yaml#/definitions/phandle
>>  
>> +  rockchip,xpcs:
>> +    description:
>> +      The phandle of the syscon node for the peripheral general register file.
> 
> You used the same description as above, so no, you cannot have two
> properties which are the same. syscons for GRF are called
> "rockchip,grf", aren't they?

Also:
1. Your commit msg does not explain it at all.
2. Your driver code uses this as some phy? Don't use syscon as
workaround for missing drivers.

Best regards,
Krzysztof