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dt-bindings: thermal: generic-adc: make lookup-table optional 

Update binding description making lookup-table optional.

Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Jean-Francois Dagenais 2019-04-18 12:37:33 -04:00 committed by Eduardo Valentin
parent d36e2fa025
commit 80d95930dc
1 changed files with 8 additions and 2 deletions
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Documentation/devicetree/bindings/thermal/thermal-generic-adc.txt
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@ -8,16 +8,22 @@ temperature using voltage-temperature lookup table.
Required properties: Required properties:
=================== ===================
- compatible: Must be "generic-adc-thermal". - compatible: Must be "generic-adc-thermal".
- #thermal-sensor-cells: Should be 1. See ./thermal.txt for a description
of this property.
Optional properties:
===================
- temperature-lookup-table: Two dimensional array of Integer; lookup table - temperature-lookup-table: Two dimensional array of Integer; lookup table
to map the relation between ADC value and to map the relation between ADC value and
temperature. When ADC is read, the value is temperature. When ADC is read, the value is
looked up on the table to get the equivalent looked up on the table to get the equivalent
temperature. temperature.
The first value of the each row of array is the The first value of the each row of array is the
temperature in milliCelsius and second value of temperature in milliCelsius and second value of
the each row of array is the ADC read value. the each row of array is the ADC read value.
- #thermal-sensor-cells: Should be 1. See ./thermal.txt for a description
of this property. If not specified, driver assumes the ADC channel
gives milliCelsius directly.
Example : Example :
#include <dt-bindings/thermal/thermal.h> #include <dt-bindings/thermal/thermal.h>