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From: Michele Sorcinelli <michelesr@autistici.org>
To: "Pali Rohár" <pali.rohar@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>, linux-hwmon@vger.kernel.org
Subject: Re: [PATCH] dell-smm-hwmon.c: Additional temperature sensors
Date: Fri, 14 Jun 2019 22:38:52 +0100
Message-ID: <305ec8ed-a04d-054a-0684-e5461da117ee@autistici.org> (raw)
In-Reply-To: <20190207124010.zfqyn2vzgwkatima@pali>

Looks like they've broken the SMM method for XPS 9560 too in a recent firmware upgrade.
Have you thought about the possibility to fall back to i8k_get_temp() when the label
method fails, or when the user decides to explicitly enable it as an alternative with
a module option?

Looks like Dell decided to change the API so future firmwares will stop supporting
that method anyway, so I think action must be taken in the driver to address the problem.

Kind regards,
Michele.

On 2/7/19 12:40 PM, Pali Rohár wrote:
> Do you have definite response from Dell support that they are not going
> to fix it? Then it is pity :-(
> 
> On Thursday 07 February 2019 12:16:06 Michele Sorcinelli wrote:
>> As far as I know Dell won't help with fixing the SMM layer, they probably
>> changed something starting with firmware version 1.3.0 and they don't
>> wanna release information about it.
>>
>> https://www.hwinfo.com/forum/Thread-Dell-XPS-15-9570-temperatures-not-named-anymore
>>
>> I wonder if something can be done to force the discovery of the sensors in the driver,
>> maybe adding a module option to use i8k_get_temp() as probe method as a workaround,
>> or maybe just forcing that method for this specific model?
>>
>> Let me know your thoughts.
>>
>> Thanks,
>> Michele.

  parent reply index

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-27 23:06 [PATCH] dell-smm-hwmon.c: Add XPS 9570 to supported devices list Michele Sorcinelli
2018-11-28  8:14 ` Pali Rohár
2018-11-28 12:30 ` Michele Sorcinelli
2018-11-28 12:56   ` Pali Rohár
2018-11-28 13:01     ` Michele Sorcinelli
2018-11-28 23:23       ` Michele Sorcinelli
2018-11-29  9:48         ` Pali Rohár
2018-11-29 21:42           ` Michele Sorcinelli
2018-12-05  9:15             ` Pali Rohár
2018-12-07 20:29               ` [PATCH] dell-smm-hwmon.c: Add support for additional temperature sensors Michele Sorcinelli
2018-12-08  0:52                 ` Michele Sorcinelli
2018-12-08  0:56                 ` [PATCH] dell-smm-hwmon.c: Additional " Michele Sorcinelli
2018-12-08  4:24                   ` Guenter Roeck
2018-12-08 15:34                     ` Michele Sorcinelli
2018-12-08 15:43                       ` Michele Sorcinelli
2018-12-08 16:52                       ` Guenter Roeck
2018-12-10 10:58                     ` Pali Rohár
2018-12-10 11:53                       ` Michele Sorcinelli
2018-12-10 12:03                         ` Pali Rohár
2019-02-07 12:16                       ` Michele Sorcinelli
2019-02-07 12:40                         ` Pali Rohár
2019-04-21 17:00                           ` Michele Sorcinelli
2019-06-14 21:38                           ` Michele Sorcinelli [this message]
2018-12-08 17:02               ` [PATCH v2] " Michele Sorcinelli
2018-12-14 23:57               ` [PATCH v3] " Michele Sorcinelli
2018-12-21 23:40                 ` Guenter Roeck
2018-12-22 12:50                   ` Pali Rohár
2018-12-22 14:18                     ` [PATCH v3.1] " Michele Sorcinelli
2018-12-23 22:59                       ` Michele Sorcinelli
2018-12-24  1:16                         ` Guenter Roeck

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