linux-kernel - Re: [PATCH 1/2] hwmon: pmbus: Add support for ltc2971

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Message-ID: <CA+DkFDZmK=YGDWbK7BPZg2TwCQ7p_BYFDSaa0SSEZ=s3hmYU2A@mail.gmail.com>
Date: Sun, 27 Oct 2024 11:52:42 +0100
From: Patryk <pbiel7@...il.com>
To: Guenter Roeck <linux@...ck-us.net>
Cc: Jean Delvare <jdelvare@...e.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Frank Li <Frank.Li@....com>, 
	linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org, 
	devicetree@...r.kernel.org
Subject: Re: [PATCH 1/2] hwmon: pmbus: Add support for ltc2971

Hi,
> Unless I misunderstand the datasheet, the voltage resolution should be 1/1024V
> or 976 uV, and there should be 65,536 voltages. This is from the chip datasheet,
> PMBus Command Description, Note 1: Data Formats, for L16 data.
I really screwed up, I took 4500 (N_ADC 4.5 mV) from datasheet from
ADC characteristics section and mistakenly interpreted it as the
voltage resolution. Should've spent more time on this, please
disregard this patch series and I apologize for the hassle.

Best regards,
Patryk