linux-kernel - Re: [PATCH v2 0/3] Introduce USB charger support in USB phy

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Message-ID: <CAMz4kuLp6C+ThKh8Y=QaocsPQ_swN7K4sMmebeGnnQA1M89G0w@mail.gmail.com>
Date:   Tue, 18 Jul 2017 15:13:00 +0800
From:   Baolin Wang <baolin.wang@...aro.org>
To:     Felipe Balbi <balbi@...nel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Sebastian Reichel <sre@...nel.org>
Cc:     Jun Li <jun.li@....com>, Peter Chen <peter.chen@...escale.com>,
        Mark Brown <broonie@...nel.org>,
        John Stultz <john.stultz@...aro.org>,
        NeilBrown <neilb@...e.com>, patches@...nsource.wolfsonmicro.com,
        Baolin Wang <baolin.wang@...aro.org>,
        Linux PM list <linux-pm@...r.kernel.org>,
        USB <linux-usb@...r.kernel.org>,
        device-mainlining@...ts.linuxfoundation.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 0/3] Introduce USB charger support in USB phy

Hi,

On 3 July 2017 at 14:07, Baolin Wang <baolin.wang@...aro.org> wrote:
> Currently the Linux kernel does not provide any standard integration of this
> feature that integrates the USB subsystem with the system power regulation
> provided by PMICs meaning that either vendors must add this in their kernels
> or USB gadget devices based on Linux (such as mobile phones) may not behave
> as they should. Thus provide a standard USB charger support in USB phy core
> for doing this in kernel.
>
> Now introduce one user with wm831x_power to support and test the usb charger.
>
> Changes since v1:
>  - Fix building errors.
>
> Baolin Wang (3):
>   include: uapi: usb: Introduce USB charger type and state definition
>   usb: phy: Add USB charger support
>   power: wm831x_power: Support USB charger current limit management

Any suggestion for the USB charger support in USB phy core? Thanks.

>
>  drivers/power/supply/wm831x_power.c |   61 ++++++++
>  drivers/usb/phy/phy.c               |  265 +++++++++++++++++++++++++++++++++++
>  include/linux/usb/phy.h             |   49 +++++++
>  include/uapi/linux/usb/charger.h    |   31 ++++
>  4 files changed, 406 insertions(+)
>  create mode 100644 include/uapi/linux/usb/charger.h
>
> --
> 1.7.9.5
>



-- 
Baolin.wang
Best Regards