Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <09264520-15fc-fd35-c1d6-9e9d0230ea4a@linaro.org>
Date:   Mon, 8 Aug 2022 09:20:47 +0300
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101
 Thunderbird/91.12.0
Subject: Re: [PATCH v2] dt-binding: ipmi: add fallback to npcm845 compatible
Content-Language: en-US
To:     minyard@acm.org, Tomer Maimon <tmaimon77@gmail.com>
Cc:     avifishman70@gmail.com, tali.perry1@gmail.com, joel@jms.id.au,
        venture@google.com, yuenn@google.com, benjaminfair@google.com,
        jic23@kernel.org, robh+dt@kernel.org,
        krzysztof.kozlowski+dt@linaro.org, openbmc@lists.ozlabs.org,
        openipmi-developer@lists.sourceforge.net,
        linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
References: <20220804181800.235368-1-tmaimon77@gmail.com>
 <20220805115827.GG3834@minyard.net>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <20220805115827.GG3834@minyard.net>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 05/08/2022 13:58, Corey Minyard wrote:
> On Thu, Aug 04, 2022 at 09:18:00PM +0300, Tomer Maimon wrote:
>> Add to npcm845 KCS compatible string a fallback to npcm750 KCS compatible
>> string becuase NPCM845 and NPCM750 BMCs are using identical KCS modules.
>>
>> Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
>> ---
>>  Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt b/Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt
>> index cbc10a68ddef..4fda76e63396 100644
>> --- a/Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt
>> +++ b/Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt
>> @@ -7,7 +7,7 @@ used to perform in-band IPMI communication with their host.
>>  Required properties:
>>  - compatible : should be one of
>>      "nuvoton,npcm750-kcs-bmc"
>> -    "nuvoton,npcm845-kcs-bmc"
>> +    "nuvoton,npcm845-kcs-bmc", "nuvoton,npcm750-kcs-bmc"
> 
> This is just wrong.  The compatible is supposed to identify the device,
> not the board the device is on.  I think compatible here should be
> "npcm7xx-kcs-bmc", and just use that everywhere.  It's fine if that is

No, because you propose to use wildcards as compatible which is not
correct. Compatibles must be specific.

Best regards,
Krzysztof