Re: [PATCH] dt-bindings: hwmon: moortec, mr75203: fix multipleOf for coefficients

From: Krzysztof Kozlowski
Date: Wed Jul 12 2023 - 08:08:12 EST


On 12/07/2023 13:58, Farber, Eliav wrote:
> On 7/12/2023 11:11 AM, Krzysztof Kozlowski wrote:
>> Few coefficients use default values multiple of 100, not 1000 (in the
>> example DTS and in the Linux driver):
>>
>>  moortec,mr75203.example.dtb: pvt@e0680000: moortec,ts-coeff-g:0:0:
>> 61400 is not a multiple of 1000
>
> Why isn't multiple of 1000 correct?

61400 is not a multiple of 1000, at least not in integers. 61400 is a
multiple of 100.

> According to the Moortec datasheet for the series 6 of the temperature
> sensor
> the coefficients are:
> G = 57.4 (57.4 * 1000 = 57400)

57.4 is not integer. With that approach 1 is also multiple of 1000, because:

G = 1 * 0.001 * 1000.

> H = 249.4
> For series 5 coefficients are:
> G = 60 (60 * 1000 = 60000)
> H = 200
> J = -0.1

Trim the context of replies. No need to quote entire text below.

Best regards,
Krzysztof