linux-kernel - Re: [PATCH v2] extcon: Split out extcon header file for consumer and provider device

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Date:   Tue, 10 Oct 2017 13:26:44 +0300
From:   Felipe Balbi <balbi@...nel.org>
To:     Chanwoo Choi <cw00.choi@...sung.com>, kishon@...com,
        gregkh@...uxfoundation.org
Cc:     sre@...nel.org, lee.jones@...aro.org, heiko@...ech.de,
        yoshihiro.shimoda.uh@...esas.com, krzk@...nel.org,
        b.zolnierkie@...sung.com, maxime.ripard@...e-electrons.com,
        wens@...e.org, cw00.choi@...sung.com, 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 v2] extcon: Split out extcon header file for consumer and provider device


Hi,

Chanwoo Choi <cw00.choi@...sung.com> writes:
> 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>

Acked-by: Felipe Balbi <felipe.balbi@...ux.intel.com>

-- 
balbi