From: Guenter Roeck <linux@roeck-us.net>
To: "Farber, Eliav" <farbere@amazon.com>
Cc: jdelvare@suse.com, robh+dt@kernel.org, mark.rutland@arm.com,
linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, talel@amazon.com,
hhhawa@amazon.com, jonnyc@amazon.com, hanochu@amazon.com,
ronenk@amazon.com, itamark@amazon.com, shellykz@amazon.com,
shorer@amazon.com, amitlavi@amazon.com, almogbs@amazon.com,
dwmw@amazon.co.uk, rtanwar@maxlinear.com
Subject: Re: [PATCH v2 14/16] hwmon: (mr75203) parse thermal coefficients from device-tree
Date: Fri, 19 Aug 2022 04:36:44 -0700 [thread overview]
Message-ID: <20220819113644.GC3106213@roeck-us.net> (raw)
In-Reply-To: <e0b133e7-ac81-acf4-3783-44edf58d6426@amazon.com>
On Fri, Aug 19, 2022 at 10:57:58AM +0300, Farber, Eliav wrote:
> On 8/18/2022 11:28 PM, Guenter Roeck wrote:
> > The calculation was just changed to use new defaults in a previous
> > patch. This patch makes it quite clear that the coefficients
> > are implementation (?) dependent. So the previous patch just changes
> > the defaults to (presumably) the coefficients used in your system.
> > That is inappropriate. Adding non-default corefficients is ok
> > and makes sense is supported by the chip, but changing defaults
> > isn't.
> The calculation was changed in previous patch to match series 5 of the
> Moortec Embedded Temperature Sensor (METS) datasheet.
> In our SOC we use series 6 which has a slightly different equation and
> different coefficients.
> I did the changes in steps.
> With this last change, both series 5 and 6 are supported, in addition to
> calibrated vs. non-calibrated modes.
> In addition the data sheet just recommends default values but they also
> specifically mention that actual values might vary from product to product.
>
Please mention all this in the commit description.
Guenter
> --
> Regards, Eliav
next prev parent reply other threads:[~2022-08-19 11:36 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-17 5:43 [PATCH v2 00/16] Variety of fixes and new features for mr75203 driver Eliav Farber
2022-08-17 5:43 ` [PATCH v2 01/16] hwmon: (mr75203) fix VM sensor allocation when "intel,vm-map" not defined Eliav Farber
2022-08-18 19:40 ` Guenter Roeck
2022-08-18 20:01 ` [PATCH v2 01/16] hwmon: (mr75203) fix VM sensor allocation when "intel, vm-map" " Farber, Eliav
2022-08-17 5:43 ` [PATCH v2 02/16] hwmon: (mr75203) update pvt->v_num to the actual number of used sensors Eliav Farber
2022-08-18 19:44 ` Guenter Roeck
2022-08-17 5:43 ` [PATCH v2 03/16] hwmon: (mr75203) update Moortec PVT controller intel,vm-map property Eliav Farber
2022-08-18 19:47 ` Guenter Roeck
2022-08-18 20:20 ` [PATCH v2 03/16] hwmon: (mr75203) update Moortec PVT controller intel, vm-map property Farber, Eliav
2022-08-17 5:43 ` [PATCH v2 04/16] hwmon: (mr75203) add Moortec PVT controller reset-control-skip property Eliav Farber
2022-08-18 20:01 ` Guenter Roeck
2022-08-22 11:54 ` Farber, Eliav
2022-08-17 5:43 ` [PATCH v2 05/16] hwmon: (mr75203) add option to skip reset controller Eliav Farber
2022-08-17 5:43 ` [PATCH v2 06/16] hwmon: (mr75203) fix multi-channel voltage reading Eliav Farber
2022-08-18 20:03 ` Guenter Roeck
2022-08-22 12:37 ` Farber, Eliav
2022-08-17 5:43 ` [PATCH v2 07/16] hwmon: (mr75203) add VM active channels property for Moortec PVT controller Eliav Farber
2022-08-18 20:07 ` Guenter Roeck
2022-08-17 5:43 ` [PATCH v2 08/16] hwmon: (mr75203) add VM active channel support Eliav Farber
2022-08-17 5:43 ` [PATCH v2 09/16] hwmon: (mr75203) add VM pre-scalar property for Moortec PVT controller Eliav Farber
2022-08-18 20:11 ` Guenter Roeck
2022-08-19 7:13 ` Farber, Eliav
2022-08-17 5:43 ` [PATCH v2 10/16] hwmon: (mr75203) add VM pre-scalar support Eliav Farber
2022-08-17 5:43 ` [PATCH v2 11/16] hwmon: (mr75203) add protection for negative voltage value Eliav Farber
2022-08-18 20:13 ` Guenter Roeck
2022-08-17 5:43 ` [PATCH v2 12/16] hwmon: (mr75203) modify the temperature equation Eliav Farber
2022-08-18 20:23 ` Guenter Roeck
2022-08-19 7:44 ` Farber, Eliav
2022-08-19 11:35 ` Guenter Roeck
2022-08-17 5:43 ` [PATCH v2 13/16] hwmon: (mr75203) add thermal coefficient properties for Moortec PVT controller Eliav Farber
2022-08-18 20:25 ` Guenter Roeck
2022-08-22 13:24 ` Farber, Eliav
2022-08-22 16:25 ` Guenter Roeck
2022-08-29 18:46 ` Farber, Eliav
2022-08-17 5:43 ` [PATCH v2 14/16] hwmon: (mr75203) parse thermal coefficients from device-tree Eliav Farber
2022-08-18 20:28 ` Guenter Roeck
2022-08-19 7:57 ` Farber, Eliav
2022-08-19 11:36 ` Guenter Roeck [this message]
2022-08-19 11:38 ` Guenter Roeck
2022-08-22 13:41 ` Farber, Eliav
2022-08-22 16:31 ` Guenter Roeck
2022-08-29 18:59 ` Farber, Eliav
2022-08-17 5:43 ` [PATCH v2 15/16] hwmon: (mr75203) fix coding style space errors Eliav Farber
2022-08-17 5:43 ` [PATCH v2 16/16] hwmon: (mr75203) add debugfs to read and write temperature coefficients Eliav Farber
2022-08-18 23:11 ` Guenter Roeck
2022-08-22 13:59 ` Farber, Eliav
2022-08-22 16:28 ` Guenter Roeck
2022-08-29 18:41 ` Farber, Eliav
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