linux-kernel - Re: how to allow board writers to customize driver behavior (watchdog here)

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Message-Id: <200705240929.51696.rgetz@blackfin.uclinux.org>
Date:	Thu, 24 May 2007 09:29:51 -0400
From:	Robin Getz <rgetz@...ckfin.uclinux.org>
To:	"Paul Mundt" <lethal@...ux-sh.org>
Cc:	"Mike Frysinger" <vapier.adi@...il.com>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Bryan Wu" <Bryan.Wu@...log.com>
Subject: Re: how to allow board writers to customize driver behavior (watchdog here)

On Thu 24 May 2007 01:23, Paul Mundt pondered:
> On Thu, May 24, 2007 at 12:21:47AM -0400, Mike Frysinger wrote:
> > is this completely bad mojo ?  is there some other mechanism that
> > provides what i want and i just dont know about it ?  or do i just
> > make people change the driver to fit their application, thus throwing
> > out the idea of keeping all board-specific details in just the boards
> > file ...
> 
> It sounds like your constraining your driver based on terminology.
> Watchdogs on most embedded platforms support either a 'reset' mode or
> otherwise act as periodic timers, trying to push both of these
> functionalities in to a watchdog driver is rather pointless.
> CONFIG_WATCHDOG implies 'reset' mode by definition.

I understand what you mean - typically - most people think of watchdog == 
reset.

But, calling it a periodic timer, and servicing it with the watchdog user 
space demon is even more confusing - isn't it?

-Robin
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