Re: [PATCH v4 0/3] Introduce USB charger support in USB phy

[Baolin Wang]

Hi Felipe,

On 27 July 2017 at 13:14, Baolin Wang <baolin.wang@xxxxxxxxxx> 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.
> In future we will also cnvert below power drivers:
> drivers/power/supply/axp288_charger.c
> drivers/power/supply/bq24190_charger.c
> drivers/power/supply/charger-manager.c
> drivers/power/supply/qcom_smbb.c
>
> Changes since v3:
>  - Bail out errors when failed to find usb phy for wm831x_power driver.
> Changes since v2:
>  - Add DT binding documentation for wm831x_power driver.
>  - Change 'usb-phy' as one optional property for wm831x_power driver.
> Changes since v1:
>  - Fix building errors.

Do you have any comments about usb charger support in usb phy core? Thanks.

>
> 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
>
>  Documentation/devicetree/bindings/mfd/wm831x.txt |    1 +
>  drivers/power/supply/wm831x_power.c              |   72 ++++++
>  drivers/usb/phy/phy.c                            |  272 ++++++++++++++++++++++
>  include/linux/usb/phy.h                          |   49 ++++
>  include/uapi/linux/usb/charger.h                 |   31 +++
>  5 files changed, 425 insertions(+)
>  create mode 100644 include/uapi/linux/usb/charger.h
>
> --
> 1.7.9.5
>



-- 
Baolin.wang
Best Regards