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Tue, 11 Aug 2026 23:58:38 -0700 (PDT) X-Received: by 2002:a17:90b:28cf:b0:37f:bfa2:1887 with SMTP id 98e67ed59e1d1-393012af827mr3137220a91.8.1786517917524; Tue, 11 Aug 2026 23:58:37 -0700 (PDT) Received: from [10.217.219.92] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-392f94d30b9sm2391336a91.13.2026.08.11.23.58.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 11 Aug 2026 23:58:37 -0700 (PDT) Message-ID: <61eb40e1-1eae-45a3-af65-62eaaf27edc4@oss.qualcomm.com> Date: Wed, 12 Aug 2026 12:28:29 +0530 Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/7] pmdomain: arm: Fix -EINVAL from scmi_pd_set_perf_state() on state 0 To: Praveen Talari , konrad.dybcio@oss.qualcomm.com, Sudeep Holla , Cristian Marussi , Ulf Hansson , Bjorn Andersson , Konrad Dybcio , Greg Kroah-Hartman , Jiri Slaby , Mark Brown , Viken Dadhaniya , Andi Shyti Cc: chandana.chiluveru@oss.qualcomm.com, arm-scmi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, linux-spi@vger.kernel.org, linux-i2c@vger.kernel.org References: <20260805-derive_clk_perf_tbl_from_perf_domain_opp_table-v1-0-61171ab1cdce@oss.qualcomm.com> <20260805-derive_clk_perf_tbl_from_perf_domain_opp_table-v1-1-61171ab1cdce@oss.qualcomm.com> Content-Language: en-US From: Mukesh Savaliya In-Reply-To: <20260805-derive_clk_perf_tbl_from_perf_domain_opp_table-v1-1-61171ab1cdce@oss.qualcomm.com> Content-Type: text/plain; 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As a result, devices attached to SCMI > performance domains can report failures when relinquishing their > performance vote. > > The OPP framework use performance state 0 to indicate that no performance > vote is required. For example, dev_pm_opp_set_rate(dev, 0) is commonly > used (by firmware or linux) when a device is runtime suspended. > > A zero performance state does not require any SCMI performance request > to be sent. Treat it as a no-op and return success instead of reporting > an error. > > Signed-off-by: Praveen Talari > --- Acked-by : Mukesh Savaliya