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Fri, 12 Sep 2025 02:16:15 -0700 (PDT) Message-ID: <0aa8bf54-50e4-456d-9f07-a297a34b86c5@linaro.org> Date: Fri, 12 Sep 2025 11:16:12 +0200 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 02/10] dt-bindings: clock: Add required "interconnect-cells" property To: Konrad Dybcio , Luo Jie Cc: Bjorn Andersson , Michael Turquette , Stephen Boyd , Varadarajan Narayanan , Georgi Djakov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Anusha Rao , Manikanta Mylavarapu , Devi Priya , Philipp Zabel , Richard Cochran , Konrad Dybcio , Catalin Marinas , Will Deacon , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, quic_kkumarcs@quicinc.com, quic_linchen@quicinc.com, quic_leiwei@quicinc.com, quic_pavir@quicinc.com, quic_suruchia@quicinc.com References: <20250909-qcom_ipq5424_nsscc-v5-0-332c49a8512b@quicinc.com> <20250909-qcom_ipq5424_nsscc-v5-2-332c49a8512b@quicinc.com> <20250912-nocturnal-horse-of-acumen-5b2cbd@kuoka> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzysztof.kozlowski@linaro.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 12/09/2025 11:13, Konrad Dybcio wrote: > On 9/12/25 9:04 AM, Krzysztof Kozlowski wrote: >> On Tue, Sep 09, 2025 at 09:39:11PM +0800, Luo Jie wrote: >>> The Networking Subsystem (NSS) clock controller acts as both a clock >>> provider and an interconnect provider. The #interconnect-cells property >>> is mandatory in the Device Tree Source (DTS) to ensure that client >>> drivers, such as the PPE driver, can correctly acquire ICC clocks from >>> the NSS ICC provider. >>> >>> Although this property is already present in the NSS CC node of the DTS >>> for CMN PLL for IPQ9574 SoC which is currently supported, it was previously >>> omitted from the list of required properties in the bindings documentation. >>> Adding this as a required property is not expected to break the ABI for >>> currently supported SoC. >>> >>> Marking #interconnect-cells as required to comply with Device Tree (DT) >>> binding requirements for interconnect providers. >> >> DT bindings do not require interconnect-cells, so that's not a correct >> reason. Drop them from required properties. > > "Mark #interconnect-cells as required to allow consuming the provided > interconnect endpoints"? The point is they do not have to be required. Best regards, Krzysztof