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([188.163.112.51]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ac2895e7e6asm274697566b.54.2025.03.10.00.57.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Mar 2025 00:57:13 -0700 (PDT) From: Svyatoslav Ryhel To: "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Laxman Dewangan , Svyatoslav Ryhel Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 1/2] dt-bindings: thermal: generic-adc: Add optional io-channel-cells property Date: Mon, 10 Mar 2025 09:56:37 +0200 Message-ID: <20250310075638.6979-2-clamor95@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250310075638.6979-1-clamor95@gmail.com> References: <20250310075638.6979-1-clamor95@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This implements a mechanism to derive temperature values from an existing ADC IIO channel, effectively creating a temperature IIO channel. This approach avoids adding a new sensor and its associated conversion table, while providing IIO-based temperature data for devices that may not utilize hwmon. Signed-off-by: Svyatoslav Ryhel --- .../devicetree/bindings/thermal/generic-adc-thermal.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/thermal/generic-adc-thermal.yaml b/Documentation/devicetree/bindings/thermal/generic-adc-thermal.yaml index 12e6418dc24d..4bc2cff0593c 100644 --- a/Documentation/devicetree/bindings/thermal/generic-adc-thermal.yaml +++ b/Documentation/devicetree/bindings/thermal/generic-adc-thermal.yaml @@ -30,6 +30,9 @@ properties: io-channel-names: const: sensor-channel + '#io-channel-cells': + const: 1 + temperature-lookup-table: description: | Lookup table to map the relation between ADC value and temperature. @@ -60,6 +63,7 @@ examples: #thermal-sensor-cells = <0>; io-channels = <&ads1015 1>; io-channel-names = "sensor-channel"; + #io-channel-cells = <1>; temperature-lookup-table = < (-40000) 2578 (-39000) 2577 -- 2.43.0