linux-kernel - Re: [PATCH v4 3/5] gadget: Support for the usb charger framework

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Message-ID: <55D47D04.7060104@cogentembedded.com>
Date:	Wed, 19 Aug 2015 15:56:36 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Baolin Wang <baolin.wang@...aro.org>, balbi@...com
Cc:	broonie@...nel.org, linus.walleij@...aro.org,
	linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
	peter.chen@...escale.com, sojka@...ica.cz,
	stern@...land.harvard.edu, r.baldyga@...sung.com,
	yoshihiro.shimoda.uh@...esas.com, linux-usb@...r.kernel.org,
	device-mainlining@...ts.linuxfoundation.org, sre@...nel.org,
	dbaryshkov@...il.com, dwmw2@...radead.org, sameo@...ux.intel.com,
	lee.jones@...aro.org, patches@...nsource.wolfsonmicro.com,
	linux-pm@...r.kernel.org
Subject: Re: [PATCH v4 3/5] gadget: Support for the usb charger framework

Hello.

On 8/19/2015 12:13 PM, Baolin Wang wrote:

> For supporting the usb charger, it adds the usb_charger_init() and
> usb_charger_exit() functions for usb charger initialization and exit.
>
> Introduce a callback 'get_charger_type' which will implemented by
> user for usb gadget operations to get the usb charger type.
>
> Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
[...]

> diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> index 755e8bc..44d82f5 100644
> --- a/include/linux/usb/gadget.h
> +++ b/include/linux/usb/gadget.h
> @@ -537,6 +537,7 @@ struct usb_gadget_ops {
>   	struct usb_ep *(*match_ep)(struct usb_gadget *,
>   			struct usb_endpoint_descriptor *,
>   			struct usb_ss_ep_comp_descriptor *);
> +	enum usb_charger_type	(*get_charger_type)(struct usb_gadget *);
                              ^^^ please use space, not tab here

>   };
>
>   /**
> @@ -611,6 +612,7 @@ struct usb_gadget {
>   	struct usb_otg_caps		*otg_caps;
>   	struct raw_notifier_head	nh;
>   	struct mutex			lock;
> +	struct usb_charger		*uchger;

    Why not simply call the field 'charger'? :-)

[...]

WBR, Sergei

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