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Mon, 13 Jul 2020 14:07:02 +0000 Received: from sumitg-l4t.nvidia.com (Not Verified[10.24.37.103]) by hqnvemgw03.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Mon, 13 Jul 2020 07:07:02 -0700 From: Sumit Gupta To: , , , , , , , , , , , , , Subject: [TEGRA194_CPUFREQ PATCH v5 1/4] dt-bindings: arm: Add t194 ccplex compatible and bpmp property Date: Mon, 13 Jul 2020 19:36:46 +0530 Message-ID: <1594649209-29394-2-git-send-email-sumitg@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1594649209-29394-1-git-send-email-sumitg@nvidia.com> References: <1594649209-29394-1-git-send-email-sumitg@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1594649211; bh=4OTHJwUV+Bl9p50zsqtzV49JPGwrtnTk2fPNfo/7QAc=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=aEqjLXBKq2oJcUprnXuxl/KBkP/nSm6Aezj1xmk+AUUF1MrWMPXHgbhOZp0GLwX0R HtCTrxuuagnLxS7Hm1Pa2dxujpnj74T4zwzDuz1T/S10pbST38mnlmm1ciOHNMYDEv r9eUS+Nn3qZeRaF+Oh88ExDdS5+5FEF/zbtsijLyNekaPDpn3jXhJ40UmyRLgRFH21 7LzITs/Oc6P3V1TEmKuRJpmiTfcLUm32vBD0m4t3sBl89OuUp4YD+6LsZlolR6QLI9 gvKLatp9JS42jqIw3T64Yr7aKCxH7s9R7Ii9q27wh7cS3F/tKVe1ybG4v7vXuXTxxx imrtknPX/8fjQ== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200713_100704_727095_E090C46F X-CRM114-Status: GOOD ( 11.29 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [216.228.121.65 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sumitg@nvidia.com, bbasu@nvidia.com, mperttunen@nvidia.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org To do frequency scaling on all CPUs within T194 CPU Complex, we need to query BPMP for data on valid operating points. Document a compatible string under 'cpus' node to represent the CPU Complex for binding drivers like cpufreq which don't have their node or CPU Complex node to bind to. Also, document a property to point to the BPMP device that can be queried for all CPUs. Signed-off-by: Sumit Gupta --- Documentation/devicetree/bindings/arm/cpus.yaml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml index a018147..9b328e3 100644 --- a/Documentation/devicetree/bindings/arm/cpus.yaml +++ b/Documentation/devicetree/bindings/arm/cpus.yaml @@ -162,6 +162,7 @@ properties: - nvidia,tegra132-denver - nvidia,tegra186-denver - nvidia,tegra194-carmel + - nvidia,tegra194-ccplex - qcom,krait - qcom,kryo - qcom,kryo260 @@ -255,6 +256,15 @@ properties: where voltage is in V, frequency is in MHz. + nvidia,bpmp: + $ref: '/schemas/types.yaml#/definitions/phandle' + description: | + Specifies the bpmp node that needs to be queried to get + operating point data for all CPUs. + + Optional for systems that have a "compatible" + property value of "nvidia,tegra194-ccplex". + power-domains: $ref: '/schemas/types.yaml#/definitions/phandle-array' description: @@ -340,6 +350,7 @@ required: dependencies: rockchip,pmu: [enable-method] + nvidia,bpmp: [compatible] examples: - |