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Message-ID: <14256f0f-2977-4a54-cf01-ae7e684d10c2@roeck-us.net>
Date: Wed, 27 May 2020 09:58:00 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc: Serge Semin <fancer.lancer@...il.com>,
Jean Delvare <jdelvare@...e.com>,
Jonathan Corbet <corbet@....net>,
Maxim Kaurkin <maxim.kaurkin@...kalelectronics.ru>,
Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
Arnd Bergmann <arnd@...db.de>,
Rob Herring <robh+dt@...nel.org>, linux-mips@...r.kernel.org,
devicetree@...r.kernel.org, linux-hwmon@...r.kernel.org,
linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/3] hwmon: Add Baikal-T1 PVT sensor driver
On 5/27/20 9:52 AM, Serge Semin wrote:
> On Wed, May 27, 2020 at 09:25:49AM -0700, Guenter Roeck wrote:
>> On Tue, May 26, 2020 at 04:38:23PM +0300, Serge Semin wrote:
>
> [nip]
>
>>> +
>>> +=============================== ======= =======================================
>>> +Name Perm Description
>>> +=============================== ======= =======================================
>>> +update_interval RW Measurements update interval per
>>> + sensor.
>>> +temp1_type RO Sensor type (always 1 as CPU embedded
>>> + diode).
>>> +temp1_label RO CPU Core Temperature sensor.
>>> +temp1_input RO Measured temperature in millidegree
>>> + Celsius.
>>> +temp1_min RW Low limit for temp input.
>>> +temp1_max RW High limit for temp input.
>>> +temp1_min_alarm RO Temperature input alarm. Returns 1 if
>>> + temperature input went below min limit,
>>> + 0 otherwise.
>>> +temp1_max_alarm RO Temperature input alarm. Returns 1 if
>>> + temperature input went above max limit,
>>> + 0 otherwise.
>>> +temp1_trim RW Temperature sensor trimming factor in
>>> + millidegree Celsius. It can be used to
>>> + manually adjust the temperature
>>> + measurements within 7.130 degrees
>>> + Celsius.
>>
>> vs. standard ABI:
>>
>> temp[1-*]_offset`
>> Temperature offset which is added to the temperature reading
>> by the chip.
>>
>> Unit: millidegree Celsius
>>
>> If you really think this is necessary, why not use the standard ABI ?
>
> That would have made much more sense.) I'll replace the handwritten temp1_trim
> with the standard temp1_offset attribute in v4 shortly today. Thanks for pointing
> this out.
>
Sorry for not realizing this earlier. The added explanation
made all the difference.
Guenter
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