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[86.58.6.171]) by smtp.gmail.com with ESMTPSA id q2-20020a1709060e4200b00a4674ad8ab9sm5809630eji.211.2024.03.27.14.20.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Mar 2024 14:20:51 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: Yangtao Li , Viresh Kumar , Nishanth Menon , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Samuel Holland , "Rafael J . Wysocki" , Andre Przywara Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Brandon Cheo Fusi , Martin Botka , Martin Botka , Chris Morgan , Ryan Walklin Subject: Re: [PATCH v3 5/8] cpufreq: sun50i: Add support for opp_supported_hw Date: Wed, 27 Mar 2024 22:20:50 +0100 Message-ID: <1853595.atdPhlSkOF@jernej-laptop> In-Reply-To: <20240326114743.712167-6-andre.przywara@arm.com> References: <20240326114743.712167-1-andre.przywara@arm.com> <20240326114743.712167-6-andre.przywara@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240327_142054_111100_FD189173 X-CRM114-Status: GOOD ( 12.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Dne torek, 26. marec 2024 ob 12:47:40 CET je Andre Przywara napisal(a): > The opp_supported_hw DT property allows the DT to specify a mask of chip > revisions that a certain OPP is eligible for. This allows for easy > limiting of maximum frequencies, for instance. > > Add support for that in the sun50i-cpufreq-nvmem driver. We support both > the existing opp-microvolt suffix properties as well as the > opp-supported-hw property, the generic code figures out which is needed > automatically. > However if none of the DT OPP nodes contain an opp-supported-hw > property, the core code will ignore all OPPs and the driver will fail > probing. So check the DT's eligibility first before using that feature. > > Signed-off-by: Andre Przywara Reviewed-by: Jernej Skrabec Best regards, Jernej _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel