linux-kernel - Re: [PATCH v5 4/4] power: supply: core: property to control reverse charge

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Date:   Tue, 21 Jul 2020 18:40:08 +0800
From:   ivan <yanziily@...il.com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     sre@...nel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, jiangfei1@...omi.com,
        Qiwu Huang <huangqiwu@...omi.com>
Subject: Re: [PATCH v5 4/4] power: supply: core: property to control reverse charge

On Tue, Jul 21, 2020 at 4:21 PM Greg KH <gregkh@...uxfoundation.org> wrote:
>
> On Tue, Jul 21, 2020 at 01:59:37PM +0800, Qiwu Huang wrote:
> > From: Qiwu Huang <huangqiwu@...omi.com>
> >
> > Interface to control wireless reverse charge.
> > Supply reverse charge function when enabled.
> >
> > Signed-off-by: Qiwu Huang <huangqiwu@...omi.com>
> > ---
> >  Documentation/ABI/testing/sysfs-class-power | 12 ++++++++++++
> >  drivers/power/supply/power_supply_sysfs.c   |  1 +
> >  include/linux/power_supply.h                |  1 +
> >  3 files changed, 14 insertions(+)
> >
> > diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
> > index 75ec7de2fe78..54647d6995d3 100644
> > --- a/Documentation/ABI/testing/sysfs-class-power
> > +++ b/Documentation/ABI/testing/sysfs-class-power
> > @@ -767,3 +767,15 @@ Description:
> >
> >               Access: Read-Only
> >               Valid values: 0 - 100
> > +
> > +What:                /sys/class/power_supply/<supply_name>/reverse_chg_mode
> > +Date:                Jul 2020
> > +Contact:     Fei Jiang <jiangfei1@...omi.com>
> > +Description:
> > +             Some phones support wireless reverse charge function which charge other phones.
>
> Replace "phones" with "devices"?

 Yes,  devices better than phones

>
> And shouldn't these lines be wrapped properly at 72 colums or so?

Sorry, I will modify the format  to match this standard.


>
> > +             The property supply interface to control wireless reverse charge.
>
> I can't understand this sentance.

The property provider interface to enable/disable wireless reverse charge.

>
> > +             If enabled, start TX mode and detect RX. Disabled when timeout or manual setting.
>
> Can this be set, or is it just something to be read?

Sorry,I forgot the permission statement

Access: Read, Write




>
> thanks,
>
> greg k-h



--
Thanks

Qiwu