linux-kernel - Re: [PATCH v16 0/4] Introduce usb charger framework to deal with the usb gadget power negotation

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Date:   Mon, 29 Aug 2016 17:02:23 +0800
From:   Baolin Wang <baolin.wang@...aro.org>
To:     Felipe Balbi <balbi@...nel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Sebastian Reichel <sre@...nel.org>,
        Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
        David Woodhouse <dwmw2@...radead.org>
Cc:     robh@...nel.org, Jun Li <jun.li@....com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Ruslan Bilovol <ruslan.bilovol@...il.com>,
        Peter Chen <peter.chen@...escale.com>,
        Alan Stern <stern@...land.harvard.edu>, r.baldyga@...sung.com,
        grygorii.strashko@...com,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Lee Jones <lee.jones@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Charles Keepax <ckeepax@...nsource.wolfsonmicro.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 v16 0/4] Introduce usb charger framework to deal with the
 usb gadget power negotation

Hi Felipe,

On 11 August 2016 at 11:14, Baolin Wang <baolin.wang@...aro.org> wrote:
> Hi Felipe,
>
> On 1 August 2016 at 15:09, 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 framework for doing this in kernel.
>>
>> Now introduce one user with wm831x_power to support and test the usb charger,
>> which is pending testing. Moreover there may be other potential users will use
>> it in future.
>
> Could you please apply this patchset into your 'next' branch if you
> have no comments about it? Thank you.

Since there are no other comments about this patchset for a long time,
could you please apply this patchset? Thanks.

>
>>
>> CHanges since v15:
>>  - Add charger state checking to avoid sending out duplicate notifies to users.
>>  - Add one work to notify power users the current has been changed.
>>
>> Changes since v14:
>>  - Add kernel documentation for struct usb_cahrger.
>>  - Remove some redundant WARN() functions.
>>
>> Changes since v13:
>>  - Remove the charger checking in usb_gadget_vbus_draw() function.
>>  - Rename some functions in charger.c file.
>>  - Rebase on git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git tags/usb-for-v4.8
>>
>> Changes since v12:
>>  - Remove the class and device things.
>>  - Link usb charger to udc-core.ko.
>>  - Create one "charger" subdirectory which holds all charger-related attributes.
>>
>> Changes since v11:
>>  - Reviewed and tested by Li Jun.
>>
>> Changes since v10:
>>  - Introduce usb_charger_get_state() function to check charger state.
>>  - Remove the mutex lock in usb_charger_set_cur_limit_by_type() function
>>  in case will be issued in atomic context.
>>
>> Baolin Wang (4):
>>   usb: gadget: Introduce the usb charger framework
>>   usb: gadget: Support for the usb charger framework
>>   usb: gadget: Integrate with the usb gadget supporting for usb charger
>>   power: wm831x_power: Support USB charger current limit management
>>
>>  drivers/power/wm831x_power.c     |   69 ++++
>>  drivers/usb/gadget/Kconfig       |    8 +
>>  drivers/usb/gadget/udc/Makefile  |    1 +
>>  drivers/usb/gadget/udc/charger.c |  780 ++++++++++++++++++++++++++++++++++++++
>>  drivers/usb/gadget/udc/core.c    |   17 +
>>  include/linux/mfd/wm831x/pdata.h |    3 +
>>  include/linux/usb/charger.h      |  186 +++++++++
>>  include/linux/usb/gadget.h       |    3 +
>>  include/uapi/linux/usb/charger.h |   31 ++
>>  9 files changed, 1098 insertions(+)
>>  create mode 100644 drivers/usb/gadget/udc/charger.c
>>  create mode 100644 include/linux/usb/charger.h
>>  create mode 100644 include/uapi/linux/usb/charger.h
>>
>> --
>> 1.7.9.5
>>
>
>
>
> --
> Baolin.wang
> Best Regards



-- 
Baolin.wang
Best Regards