linux-kernel - Re: [PATCH] hwmon: (pmbus/bpa-rs600): Handle Vin readings >= 256V

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Message-ID: <20210617112206.GA1579582@roeck-us.net>
Date:   Thu, 17 Jun 2021 04:22:06 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Chris Packham <chris.packham@...iedtelesis.co.nz>
Cc:     Jean Delvare <jdelvare@...e.com>, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] hwmon: (pmbus/bpa-rs600): Handle Vin readings >= 256V

On Wed, Jun 16, 2021 at 03:42:18PM +1200, Chris Packham wrote:
> The BPA-RS600 doesn't follow the PMBus spec for linear data.
> Specifically it treats the mantissa as an unsigned 11-bit value instead
> of a two's complement 11-bit value. At this point it's unclear whether
> this only affects Vin or if Pin/Pout1 are affected as well. Erring on
> the side of caution only Vin is dealt with here.
> 
> Fixes: 15b2703e5e02 ("hwmon: (pmbus) Add driver for BluTek BPA-RS600")
> Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>

Applied.

Thanks,
Guenter