linux-kernel - Re: [PATCH 1/2] acpi/dptf: document sysfs atttributes

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Date:   Fri, 9 Feb 2018 11:31:35 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Aishwarya Pant <aishpant@...il.com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>,
        Greg KH <gregkh@...uxfoundation.org>,
        Julia Lawall <julia.lawall@...6.fr>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: Re: [PATCH 1/2] acpi/dptf: document sysfs atttributes

On Wed, Feb 7, 2018 at 2:18 PM, Aishwarya Pant <aishpant@...il.com> wrote:
> The descriptions have been collected from git commit logs and reading
> through code.
>
> Signed-off-by: Aishwarya Pant <aishpant@...il.com>
> ---
>  Documentation/ABI/testing/sysfs-platform-dptf | 30 +++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
>  create mode 100644 Documentation/ABI/testing/sysfs-platform-dptf
>
> diff --git a/Documentation/ABI/testing/sysfs-platform-dptf b/Documentation/ABI/testing/sysfs-platform-dptf
> new file mode 100644
> index 000000000000..e8168e5198d7
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-platform-dptf
> @@ -0,0 +1,30 @@
> +sysfs interface for ACPI DPTF platform power driver
> +---------------------------------------------------

The header isn't necessary.

> +
> +What:          /sys/bus/platform/devices/INT3407:00/dptf_power/charger_type
> +What:          /sys/bus/platform/devices/INT3407:00/dptf_power/adapter_rating_mw
> +What:          /sys/bus/platform/devices/INT3407:00/dptf_power/max_platform_power_mw
> +What:          /sys/bus/platform/devices/INT3407:00/dptf_power/platform_power_source
> +What:          /sys/bus/platform/devices/INT3407:00/dptf_power/battery_steady_power

There should be one entry per attribute AFAICS.

Also I need Srinivas to tell me whether or not the descriptions are
accurate enough.

> +Date:          Jul, 2016
> +KernelVersion: v4.10
> +Contact:       linux-acpi@...r.kernel.org
> +Description:
> +               charger_type:           (RO) The charger type- Traditional,
> +                                       Hybrid or NVDC.
> +
> +               adapter_rating_mw:      (RO) Adapter rating in milliwatts (the
> +                                       maximum Adapter power). Must be 0 if no
> +                                       AC Adaptor is plugged in.
> +
> +               max_platform_power_mw:  (RO) Maximum platform power that can be
> +                                       supported by the battery in milliwatts.
> +
> +               platform_power_source:  (RO) Display the platform power source
> +                                       0x00 = DC
> +                                       0x01 = AC
> +                                       0x02 = USB
> +                                       0x03 = Wireless Charger
> +
> +               battery_steady_power_mw:(RO) The maximum sustained power for
> +                                       battery in milliwatts.
> --