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([2a02:810d:15c0:828:5050:151b:e755:1c6]) by smtp.gmail.com with ESMTPSA id e3-20020a170906504300b00930c6c01c9esm7611132ejk.143.2023.03.22.09.29.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 22 Mar 2023 09:29:52 -0700 (PDT) Message-ID: <859ec5d4-4cb6-1d8a-33b6-91df071e07a1@linaro.org> Date: Wed, 22 Mar 2023 17:29:51 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0 Subject: Re: [PATCH V1 2/4] dt-bindings: soc: qcom,mpm-sleep-counter: Add the dtschema Content-Language: en-US To: Souradeep Chowdhury , Andy Gross , Konrad Dybcio , Krzysztof Kozlowski , Bjorn Andersson , Rob Herring Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, Sibi Sankar , Rajendra Nayak References: <576e53a1d0ef218536da976102b4cc207436ec1d.1679403696.git.quic_schowdhu@quicinc.com> From: Krzysztof Kozlowski In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-0.2 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 22/03/2023 14:46, Souradeep Chowdhury wrote: >>> + - const: qcom,mpm2-sleep-counter >> >> SoC specific compatible. >> > > This is a generic Module Power Manager Sleep Counter which is present in > all Qcom Socs, so SoC specific compatible is not given here. Not really a good reason and it is actually very difficult to verify this. If I understand correctly any moment FW can change and this will stop being valid, so no. > >>> + >>> + reg: >>> + items: >>> + - description: MPM Sleep Counter Base >> >> just maxItems: 1 >> > > Ack >>> + >>> + clock-frequency: >>> + description: Frequency for the sleep counter >> >> Since this does not have clocks, what frequency you are setting here? > > Module Power Manager(MPM) Sleep Counter is a clock that starts ticking > from Primary Boot Loader(PBL) Stage. This is usually a 32 Khz clock and > the frequency for the same is stored here. You just said all devices have the same MPM, so I would argue that all devices have the same clock. Anyway, this is a legacy property. Best regards, Krzysztof