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Thu, 30 Nov 2023 05:35:40 -0800 (PST) Received: from [192.168.1.20] ([178.197.223.109]) by smtp.gmail.com with ESMTPSA id r19-20020a1709067fd300b009fd50aa6984sm678266ejs.83.2023.11.30.05.35.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 30 Nov 2023 05:35:39 -0800 (PST) Message-ID: <5bc8b7e3-7a4f-48d4-a1fa-9e3cb0b39a3a@linaro.org> Date: Thu, 30 Nov 2023 14:35:36 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 1/3] arm64: dts: qcom: msm8996: Fix 'in-ports' is a required property Content-Language: en-US To: Jinlong Mao , Andy Gross , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Tingwei Zhang , Yuanfang Zhang , Tao Zhang References: <20231129143815.7892-1-quic_jinlmao@quicinc.com> <20231129143815.7892-2-quic_jinlmao@quicinc.com> <3527d540-3e3f-4edb-b5f2-6ac481132c06@linaro.org> <591e1aca-20ca-4d42-809d-12cd12ddadb3@quicinc.com> <35916812-af55-4b2a-99e5-8566e945cb6e@linaro.org> <5ef0372a-2b9d-4a19-bbb4-2c6ce29dbe79@quicinc.com> From: Krzysztof Kozlowski Autocrypt: addr=krzysztof.kozlowski@linaro.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 30/11/2023 14:12, Jinlong Mao wrote: > > > On 11/30/2023 8:06 PM, Krzysztof Kozlowski wrote: >> On 30/11/2023 12:15, Jinlong Mao wrote: >>> >>> >>> On 11/30/2023 4:55 PM, Krzysztof Kozlowski wrote: >>>> On 29/11/2023 15:38, Mao Jinlong wrote: >>>>> The inport of funnel@3023000 connects to a source which is not supported >>>>> in current linux kernel. Remove the device tree node of funnel@3023000 >>>>> to fix the warning. It will be added once the driver support to the >>>>> source is added to linux kernel. >>>> >>>> Thanks for the changes, but that's not correct reason to remove DTS >>>> code. What kernel supports or not, should be irrelevant for the DTS. DTS >>>> for example is used in other projects - did you check if they have the >>>> same issues? Anyway, DTS describes the hardware, so how current kernel >>>> support defines what is and what is not in the hardware? >>>> >>>> >>>> Best regards, >>>> Krzysztof >>> >>> Hi Krzysztof, >>> >>> The funnel dt node must have in-ports node. It is to describe the input >>> connection of funnel HW. But there is no dt_binding doc to describe the >>> DT node of the HW connected to funnel@3023000. So remove the funnel to >>> solve the warning as of now. The funnel will be added back once driver >>> and dt_binding are added for the HW. >>> >>> Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml >> >> Why we cannot add now the binding for the connected hardware? It's not >> really related to the driver. >> >> Best regards, >> Krzysztof > > Do you mean yaml file can be added before the driver code is merged ? Yes, the binding. YAML is only the language. We don't write YAMLs, we write bindings. Best regards, Krzysztof