linux-kernel - Re: [PATCH] usb otg: use atomic notifier instead of blocking notifier

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Date:	Thu, 20 Jan 2011 06:01:00 +0200
From:	Felipe Balbi <balbi@...com>
To:	Yang Ruirui <ruirui.r.yang@...to.com>
Cc:	Felipe Balbi <balbi@...com>,
	Yang Ruirui R <ruirui.r.yang@...toenator.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Mian Yousaf Kaukab <mian.yousaf.kaukab@...ricsson.com>,
	Linus Walleij <linus.walleij@...ricsson.com>,
	Felipe Balbi <felipe.balbi@...ia.com>,
	Heikki Krogerus <ext-heikki.krogerus@...ia.com>,
	Tejun Heo <tj@...nel.org>,
	Samuel Ortiz <sameo@...ux.intel.com>, Hema HK <hemahk@...com>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] usb otg: use atomic notifier instead of blocking
 notifier

On Thu, Jan 20, 2011 at 10:06:38AM +0800, Yang Ruirui wrote:
> Actually I does not found where notifiers are used in these files except
> langwell_otg
> 
> For langwell_otg.c there's a wrapper struct named "intel mid_otg_xceiv"
> in include/linux/usb/intel_mid_otg.h, it use an atomic notifier for
> interrupt context.
> 
> So I think we'd better write another patch to make it use general
> otg_transceiver for notifier or just keep current code. What's your opinion?

I'm not the maintainer but I would rather see it using the notifier on
the otg_transceiver structure, and later add the support for the other
transceivers too.

-- 
balbi
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