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From: Rob Herring <robh@kernel.org>
To: Kun Yi <kunyi@google.com>
Cc: linux@roeck-us.net, linux-hwmon@vger.kernel.org,
	jdelvare@suse.com, mark.rutland@arm.com,
	devicetree@vger.kernel.org, rlippert@google.com,
	benjaminfair@google.com, openbmc@lists.ozlabs.org
Subject: Re: [PATCH v2] hwmon: (adm1275): Add device tree param for shunt resistor
Date: Fri, 12 Oct 2018 15:11:28 -0500	[thread overview]
Message-ID: <20181012201128.GA13628@bogus> (raw)
In-Reply-To: <20180928195800.153914-1-kunyi@google.com>

On Fri, Sep 28, 2018 at 12:58:00PM -0700, Kun Yi wrote:
> The ADM series of hotswap controllers support extending
> the current measurement range by using a sensing resistor
> value other than the typical 1 mOhm. For example, using a 0.5 mOhm
> sensing resistor doubles the maximal current can be measured.
> 
> Current driver assumes a shunt resistor value of 1 mOhm in calculation,
> meaning for other resistor values, hwmon will report scaled
> current/power measurements. This patch adds a device tree parameter so
> that individual boards can configure its shunt resistor value.
> 
> Signed-off-by: Kun Yi <kunyi@google.com>
> ---
>  .../devicetree/bindings/hwmon/adm1275.txt     | 25 +++++++++++++++++++

This should be a separate patch. In particular, the subject doesn't 
really reflect that you are adding a new binding.

Otherwise, the binding looks fine.

>  Documentation/hwmon/adm1275                   |  3 +++
>  drivers/hwmon/pmbus/adm1275.c                 | 15 +++++++++--
>  3 files changed, 41 insertions(+), 2 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/hwmon/adm1275.txt

      reply	other threads:[~2018-10-12 20:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-28 19:58 [PATCH v2] hwmon: (adm1275): Add device tree param for shunt resistor Kun Yi
2018-10-12 20:11 ` Rob Herring [this message]

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