Message-ID: <b58fad13-12d5-346b-9452-d345c7bf5327@linaro.org>
Date:   Wed, 15 Feb 2023 21:17:56 +0100
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Subject: Re: [PATCH v4 2/3] dt-bindings: i2c-ast2600: Add support for AST2600
 i2C driver
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To:     Ryan Chen <ryan_chen@aspeedtech.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Joel Stanley <joel@jms.id.au>,
        Andrew Jeffery <andrew@aj.id.au>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        "openbmc@lists.ozlabs.org" <openbmc@lists.ozlabs.org>,
        "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        "linux-aspeed@lists.ozlabs.org" <linux-aspeed@lists.ozlabs.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
References: <20230201103359.1742140-1-ryan_chen@aspeedtech.com>
 <20230201103359.1742140-3-ryan_chen@aspeedtech.com>
 <b0f55494-3a17-4d87-7b8f-5b078503cb53@linaro.org>
 <SEZPR06MB52690A1D06F3CFEAAF1FDBDEF2A39@SEZPR06MB5269.apcprd06.prod.outlook.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <SEZPR06MB52690A1D06F3CFEAAF1FDBDEF2A39@SEZPR06MB5269.apcprd06.prod.outlook.com>
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On 15/02/2023 06:43, Ryan Chen wrote:
>>> +  - $ref: /schemas/i2c/i2c-controller.yaml#
>>> +
>>> +properties:
>>> +  compatible:
>>> +    enum:
>>> +      - aspeed,ast2600-i2c
>>
>> NAK. It's already there. Please do not waste our time in submitting duplicated
>> drivers.
> 
> It is not duplicated, as my description in cover " This series add AST2600 i2c new register set driver"
> So, this will be different driver compatible. 
> The original compatible is 
>       - aspeed,ast2400-i2c-bus
>       - aspeed,ast2500-i2c-bus
>       - aspeed,ast2600-i2c-bus
> So the new register set compatible is "- aspeed,ast2600-i2c", remove "bus".

Bindings are documenting hardware, so I claim - we already have this
hardware described and this is duplicated. Otherwise - what are these
two I2C controllers and what are the differences? Why they do not have
really different name? Bus looks more like a mistake than a
differentiating name.

Best regards,
Krzysztof