linux-kernel - Re: [EXTERNAL] Re: Potential issue with smb word operations for tmp461 device in tmp401 driver

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Message-ID: <20211028162012.GA470146@roeck-us.net>
Date:   Thu, 28 Oct 2021 09:20:12 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     "Wilson, David T. (GSFC-5870)" <david.wilson@...a.gov>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-hwmon@...r.kernel.org" <linux-hwmon@...r.kernel.org>
Subject: Re: [EXTERNAL] Re: Potential issue with smb word operations for
 tmp461 device in tmp401 driver

Hi David,

On Thu, Oct 28, 2021 at 01:54:01AM +0000, Wilson, David T. (GSFC-5870) wrote:
> Hi Guenter,
> 
> Like last time, I updated several files in my platform's v5.4 files and applied your three patches. 
> From what I can tell, I'm having no problems with the tmp461's basic support in the modified lm90 driver.
> 
> Thanks again for looking into this,

I ordered an evaluation board from TI to be able to test improved support
for TMP461 in the lm90 driver (actual chips are all but impossible to get,
unless I am willing to wait for 9+ months). There are still some issues
with negative temperatures in standard mode and, as you noticed, with
resolution. I do have a board with TMP451 (which doesn't support negative
temperatures in standard mode), but that doesn't help with the TMP461
specifics. I'll keep you posted.

Guenter