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[109.252.193.91]) by smtp.gmail.com with ESMTPSA id x4sm2365339lfa.173.2021.05.10.14.11.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 May 2021 14:11:51 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Rob Herring , MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Peter Geis , Matt Merhar Cc: linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v1 4/7] dt-bindings: devfreq: tegra30-actmon: Add cooling-cells Date: Tue, 11 May 2021 00:10:05 +0300 Message-Id: <20210510211008.30300-5-digetx@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210510211008.30300-1-digetx@gmail.com> References: <20210510211008.30300-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The ACTMON watches activity of memory clients. Decisions about a minimum required frequency are made based on the info from ACTMON. We can use ACTMON as a thermal cooling device by limiting the required frequency. Document new cooling-cells property of NVIDIA Tegra ACTMON hardware unit. Signed-off-by: Dmitry Osipenko Reviewed-by: Rob Herring Acked-by: Chanwoo Choi Acked-by: Thierry Reding --- .../devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml index 2a940d5d7ab4..0aa9459b7751 100644 --- a/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml +++ b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml @@ -63,6 +63,9 @@ properties: Should contain freqs and voltages and opp-supported-hw property, which is a bitfield indicating SoC speedo ID mask. + "#cooling-cells": + const: 2 + required: - compatible - reg @@ -74,6 +77,7 @@ required: - interconnects - interconnect-names - operating-points-v2 + - "#cooling-cells" additionalProperties: false @@ -118,4 +122,5 @@ examples: operating-points-v2 = <&dvfs_opp_table>; interconnects = <&mc TEGRA30_MC_MPCORER &emc>; interconnect-names = "cpu-read"; + #cooling-cells = <2>; };