From: Bryan Brattlof <[email protected]> commit 0d9ecfae1ec9e1556b8a943dbd9deea94e8d4870 from git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git
commit effe8db0a421480fc4dad0c7bf380b8e245cbb8c upstream Elaborate on the function of this device node as well as some of the properties this node uses. Signed-off-by: Bryan Brattlof <[email protected]> Acked-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Daniel Lezcano <[email protected]> Signed-off-by: Keerthy <[email protected]> Signed-off-by: Vignesh Raghavendra <[email protected]> Signed-off-by: Xulin Sun <[email protected]> --- .../bindings/thermal/ti,j72xx-thermal.yaml | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml b/Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml index c74f124ebfc0..3bb870a26872 100644 --- a/Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml +++ b/Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml @@ -9,6 +9,19 @@ title: Texas Instruments J72XX VTM (DTS) binding maintainers: - Keerthy <[email protected]> +description: | + The TI K3 family of SoCs typically have a Voltage & Thermal + Management (VTM) device to control up to 8 temperature diode + sensors to measure silicon junction temperatures from different + hotspots of the chip as well as provide temperature, interrupt + and alerting information. + + The following polynomial equation can then be used to convert + value returned by this device into a temperature in Celsius + + Temp(C) = (-9.2627e-12) * x^4 + (6.0373e-08) * x^3 + \ + (-1.7058e-04) * x^2 + (3.2512e-01) * x + (-4.9003e+01) + properties: compatible: enum: @@ -19,7 +32,11 @@ properties: items: - description: VTM cfg1 register space - description: VTM cfg2 register space - - description: VTM efuse register space + - description: | + A software trimming method must be applied to some Jacinto + devices to function properly. This eFuse region provides + the information needed for these SoCs to report + temperatures accurately. power-domains: maxItems: 1 -- 2.35.5
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