linux-kernel - Re: [PATCH v3 6/6] hwmon: (pmbus/pim4328) Add documentation for the pim4328 PMBus driver

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Date:   Tue, 25 May 2021 21:32:58 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Erik Rosen <erik.rosen@...ormote.com>,
        Jean Delvare <jdelvare@...e.com>,
        Jonathan Corbet <corbet@....net>, linux-hwmon@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 6/6] hwmon: (pmbus/pim4328) Add documentation for the
 pim4328 PMBus driver

On 5/24/21 8:02 AM, Erik Rosen wrote:
> Add documentation and index link for pim4328 PMBus driver.
> 
> Signed-off-by: Erik Rosen <erik.rosen@...ormote.com>
> ---
>   Documentation/hwmon/index.rst   |   1 +
>   Documentation/hwmon/pim4328.rst | 105 ++++++++++++++++++++++++++++++++
>   MAINTAINERS                     |   7 +++
>   3 files changed, 113 insertions(+)
>   create mode 100644 Documentation/hwmon/pim4328.rst
> 
> diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
> index 9ed60fa84cbe..719625f8f755 100644
> --- a/Documentation/hwmon/index.rst
> +++ b/Documentation/hwmon/index.rst
> @@ -150,6 +150,7 @@ Hardware Monitoring Kernel Drivers
>      pc87360
>      pc87427
>      pcf8591
> +   pim4328
>      pm6764tr
>      pmbus
>      powr1220
> diff --git a/Documentation/hwmon/pim4328.rst b/Documentation/hwmon/pim4328.rst
> new file mode 100644
> index 000000000000..70c9e7a6882c
> --- /dev/null
> +++ b/Documentation/hwmon/pim4328.rst
> @@ -0,0 +1,105 @@
> +.. SPDX-License-Identifier: GPL-2.0
> +
> +Kernel driver pim4328
> +=====================
> +
> +Supported chips:
> +
> +  * Flex PIM4328
> +
> +    Prefix: 'pim4328', 'bmr455'
> +
> +    Addresses scanned: -
> +
> +    Datasheet:
> +
> +https://flexpowermodules.com/resources/fpm-techspec-pim4328
> +
> +  * Flex PIM4820
> +
> +    Prefixes: 'pim4820'
> +
> +    Addresses scanned: -
> +
> +    Datasheet: https://flexpowermodules.com/resources/fpm-techspec-pim4820
> +
> +  * Flex PIM4006, PIM4106, PIM4206, PIM4306, PIM4406
> +
> +    Prefixes: 'pim4006', 'pim4106', 'pim4206', 'pim4306', 'pim4406'
> +
> +    Addresses scanned: -
> +
> +    Datasheet: https://flexpowermodules.com/resources/fpm-techspec-pim4006
> +
> +Author: Erik Rosen <erik.rosen@...ormote.com>
> +
> +
> +Description
> +-----------
> +
> +This driver supports hardware monitoring for Flex PIM4328 and
> +compatible digital power interface modules.
> +
> +The driver is a client driver to the core PMBus driver. Please see
> +Documentation/hwmon/pmbus.rst and Documentation.hwmon/pmbus-core for details
> +on PMBus client drivers.
> +
> +
> +Usage Notes
> +-----------
> +
> +This driver does not auto-detect devices. You will have to instantiate the
> +devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
> +details.
> +
> +
> +Platform data support
> +---------------------
> +
> +The driver supports standard PMBus driver platform data.
> +
> +
> +Sysfs entries
> +-------------
> +
> +The following attributes are supported. All attributes are read-only.
> +
> +======================= ========================================================
> +in1_label		"vin"
> +in1_input		Measured input voltage.
> +in1_alarm		Input voltage alarm.
> +
> +in2_label		"vin.0"
> +in2_input		Measured input voltage on input A.
> +
> +			PIM4328 and PIM4X06
> +
> +in3_label		"vin.1"
> +in3_input		Measured input voltage on input B.
> +
> +			PIM4328 and PIM4X06
> +
> +in4_label		"vcap"
> +in4_input		Measured voltage on holdup capacitor.
> +
> +			PIM4328
> +
> +curr1_label		"iin.0"
> +curr1_input		Measured input current on input A.
> +
> +			PIM4X06
> +
> +curr2_label		"iin.1"
> +curr2_input		Measured input current on input B.
> +
> +			PIM4X06
> +
> +currX_label		"iout1"
> +currX_input		Measured output current.
> +currX_alarm		Output current alarm.
> +
> +			X is 1 for PIM4820, 3 otherwise.
> +
> +temp1_input		Measured temperature.
> +temp1_alarm		High temperature alarm.
> +======================= ========================================================
> diff --git a/MAINTAINERS b/MAINTAINERS
> index bd7aff0c120f..378a121d80f6 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -14416,6 +14416,13 @@ K:	(?i)pidfd
>   K:	(?i)clone3
>   K:	\b(clone_args|kernel_clone_args)\b
>   
> +PIM4328 DRIVER
> +M:	Daniel Nilsson <daniel.nilsson@...x.com>

This will require an Ack from Daniel; you can not just nominate someone
else as maintainer.

> +L:	linux-hwmon@...r.kernel.org
> +S:	Maintained
> +F:	Documentation/hwmon/pim4328.rst
> +F:	drivers/hwmon/pmbus/pim4328.c
> +
>   PIN CONTROL SUBSYSTEM
>   M:	Linus Walleij <linus.walleij@...aro.org>
>   L:	linux-gpio@...r.kernel.org
>