linux-kernel - Re: [PATCH] drivers: char: hvc: add arm JTAG DCC console support

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Message-ID: <20110114191956.GK4957@atomide.com>
Date:	Fri, 14 Jan 2011 11:19:57 -0800
From:	Tony Lindgren <tony@...mide.com>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	Daniel Walker <dwalker@...eaurora.org>,
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>,
	Nicolas Pitre <nico@...xnic.net>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Mike Frysinger <vapier@...too.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] drivers: char: hvc: add arm JTAG DCC console support

* Stephen Boyd <sboyd@...eaurora.org> [101207 11:00]:
> On 12/01/2010 12:20 PM, Stephen Boyd wrote:
> > Definitely for TX since it seems like a redundant loop, but I agree RX
> > code has changed. Instead of
> >
> > If RX buffer full
> > Poll for RX buffer full
> > Read character from RX buffer
> >
> > we would have
> >
> > If RX buffer full
> > Read character from RX buffer
> >
> > which doesn't seem all that different assuming the RX buffer doesn't go
> > from full to empty between the If and Poll steps. Hopefully Tony knows more.
> >
> 
> Tony, any thoughts?

Sorry for the delay, looks like I'm only 1 month behind with email..
Sounds like it should work to me. I can try it out if you point me
to a patch.

Regards,

Tony
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