Re: [PATCH v3 1/2] dt-bindings: thermal: imx: Document calibration offset property
From: Conor Dooley <conor@kernel.org>
Date: 2026-07-10 16:43:45
Also in:
imx, linux-arm-kernel, linux-pm, lkml
On Fri, Jul 10, 2026 at 10:50:40AM +0800, HaoNing Cheng via B4 Relay wrote:
From: HaoNing Cheng <redacted> Some boards need a small per-design correction to align the reported CPU temperature with board-level measurements. Document the optional fsl,temp-calibration-offset-millicelsius property, a signed offset in millicelsius that is added to the calculated sensor temperature. The property is optional and the existing behaviour is kept when it is omitted. Update the binding example to show its usage. Signed-off-by: HaoNing Cheng <redacted>
Acked-by: Conor Dooley <conor.dooley@microchip.com> pw-bot: not-applicable
quoted hunk ↗ jump to hunk
--- Documentation/devicetree/bindings/thermal/imx-thermal.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+)diff --git a/Documentation/devicetree/bindings/thermal/imx-thermal.yaml b/Documentation/devicetree/bindings/thermal/imx-thermal.yaml index 949b154856c5..704bf2fa48cf 100644 --- a/Documentation/devicetree/bindings/thermal/imx-thermal.yaml +++ b/Documentation/devicetree/bindings/thermal/imx-thermal.yaml@@ -59,6 +59,15 @@ properties: clocks: maxItems: 1 + fsl,temp-calibration-offset-millicelsius: + maxItems: 1 + description: + A signed calibration offset, in millicelsius, added to the calculated + sensor temperature to compensate for board-level measurement + differences. When absent, no offset is applied. + minimum: -28580 + maximum: 28580 + "#thermal-sensor-cells": const: 0@@ -109,6 +118,7 @@ examples: nvmem-cells = <&tempmon_calib>, <&tempmon_temp_grade>; nvmem-cell-names = "calib", "temp_grade"; clocks = <&clks IMX6SX_CLK_PLL3_USB_OTG>; + fsl,temp-calibration-offset-millicelsius = <(-6400)>; #thermal-sensor-cells = <0>; }; };-- 2.43.0
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