linux-kernel - Re: [PATCH] extcon: Split out extcon header file for consumer and provider device

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Date:   Wed, 4 Oct 2017 11:48:50 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Chanwoo Choi <cw00.choi@...sung.com>
Cc:     balbi@...nel.org, kishon@...com, sre@...nel.org,
        gregkh@...uxfoundation.org, heiko@...ech.de,
        yoshihiro.shimoda.uh@...esas.com, krzk@...nel.org,
        b.zolnierkie@...sung.com, maxime.ripard@...e-electrons.com,
        wens@...e.org, chanwoo@...nel.org, myungjoo.ham@...sung.com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-pm@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org,
        linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH] extcon: Split out extcon header file for consumer and
 provider device

On Fri, 29 Sep 2017, Chanwoo Choi wrote:

> The extcon has two type of extcon devices as following.
> - 'extcon provider deivce' adds new extcon device and detect the
>    state/properties of external connector. Also, it notifies the
>    state/properties to the extcon consumer device.
> - 'extcon consumer device' gets the change state/properties
>    from extcon provider device.
> Prior to that, include/linux/extcon.h contains all exported API for
> both provider and consumer device driver. To clarify the meaning of
> header file and to remove the wrong use-case on consumer device,
> this patch separates into extcon.h and extcon-provider.h.
> 
> [Description for include/linux/{extcon.h|extcon-provider.h}]
> - extcon.h includes the extcon API and data structure for extcon consumer
>   device driver. This header file contains the following APIs:
>   : Register/unregister the notifier to catch the change of extcon device
>   : Get the extcon device instance
>   : Get the extcon device name
>   : Get the state of each external connector
>   : Get the property value of each external connector
>   : Get the property capability of each external connector
> 
> - extcon-provider.h includes the extcon API and data structure for extcon
>   provider device driver. This header file contains the following APIs:
>   : Include 'include/linux/extcon.h'
>   : Allocate the memory for extcon device instance
>   : Register/unregister extcon device
>   : Set the state of each external connector
>   : Set the property value of each external connector
>   : Set the property capability of each external connector
> 
> Cc: Felipe Balbi <balbi@...nel.org>
> Cc: Kishon Vijay Abraham I <kishon@...com>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Sebastian Reichel <sre@...nel.org>
> Cc: Lee Jones <lee.jones@...aro.org>
> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
> ---
>  drivers/extcon/extcon-adc-jack.c              |   2 +-
>  drivers/extcon/extcon-arizona.c               |   2 +-
>  drivers/extcon/extcon-axp288.c                |   2 +-
>  drivers/extcon/extcon-gpio.c                  |   2 +-
>  drivers/extcon/extcon-intel-cht-wc.c          |   2 +-
>  drivers/extcon/extcon-intel-int3496.c         |   2 +-
>  drivers/extcon/extcon-max14577.c              |   2 +-
>  drivers/extcon/extcon-max3355.c               |   2 +-
>  drivers/extcon/extcon-max77693.c              |   2 +-
>  drivers/extcon/extcon-max77843.c              |   2 +-
>  drivers/extcon/extcon-max8997.c               |   2 +-
>  drivers/extcon/extcon-qcom-spmi-misc.c        |   2 +-
>  drivers/extcon/extcon-rt8973a.c               |   2 +-
>  drivers/extcon/extcon-sm5502.c                |   2 +-
>  drivers/extcon/extcon-usb-gpio.c              |   2 +-
>  drivers/extcon/extcon-usbc-cros-ec.c          |   2 +-
>  drivers/extcon/extcon.h                       |   2 +-
>  drivers/phy/allwinner/phy-sun4i-usb.c         |   2 +-
>  drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c     |   2 +-
>  drivers/phy/renesas/phy-rcar-gen3-usb2.c      |   2 +-
>  drivers/phy/rockchip/phy-rockchip-inno-usb2.c |   2 +-
>  drivers/power/supply/qcom_smbb.c              |   2 +-
>  drivers/usb/gadget/udc/renesas_usb3.c         |   2 +-
>  drivers/usb/phy/phy-tahvo.c                   |   2 +-
>  drivers/usb/renesas_usbhs/common.h            |   2 +-
>  include/linux/extcon-provider.h               | 142 ++++++++++++++++++++++++++
>  include/linux/extcon.h                        | 109 +-------------------

>  include/linux/mfd/palmas.h                    |   2 +-

Acked-by: Lee Jones <lee.jones@...aro.org>

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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