linux-kernel - Re: [PATCH] ARM: exynos: add UART3 to DEBUG

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Date:	Wed, 21 Nov 2012 08:58:30 -0800
From:	Doug Anderson <dianders@...omium.org>
To:	Olof Johansson <olof@...om.net>
Cc:	linux-samsung-soc@...r.kernel.org,
	Thomas Abraham <thomas.abraham@...aro.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Russell King <linux@....linux.org.uk>,
	Ben Dooks <ben-linux@...ff.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: exynos: add UART3 to DEBUG_LL ports

On Tue, Nov 20, 2012 at 11:29 PM, Olof Johansson <olof@...om.net> wrote:
>
> On Tue, Nov 20, 2012 at 02:48:58PM -0800, Doug Anderson wrote:
> > From: Olof Johansson <olof@...om.net>
> >
> > UART3 is used for debugging on exynos5250-snow.
> >
> > [dianders: cleaned commit message.]
> >
> > Signed-off-by: Olof Johansson <olof@...om.net>
> > Signed-off-by: Doug Anderson <dianders@...omium.org>
>
> >
> > ---
> >  arch/arm/Kconfig.debug        |   11 +++++++++++
> >  arch/arm/plat-samsung/Kconfig |    1 +
> >  2 files changed, 12 insertions(+), 0 deletions(-)
> >
> > diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> > index 33a8930..35ba7dc 100644
> > --- a/arch/arm/Kconfig.debug
> > +++ b/arch/arm/Kconfig.debug
> > @@ -355,6 +355,17 @@ choice
> >                 The uncompressor code port configuration is now handled
> >                 by CONFIG_S3C_LOWLEVEL_UART_PORT.
> >
> > +     config DEBUG_S3C_UART3
> > +             depends on PLAT_SAMSUNG
>
>
> Sorry, the reason I hadn't re-posted this is that Kukjin had proposed
> to protect users of <= 3 UART platforms to select it. An added "Depends
> on ARCH_EXYNOS4 || ARCH_EXYNOS5" should cover that. Can you add and
> repost, please?

Doh!  I hadn't even noticed that you'd already posted this--I got mine
from the Chrome OS tree directly.  Sorry about that...

I've added an && for ARCH_EXYNOS which seems reasonable.  I left
PLAT_SAMSUNG as a depend though technically ARCH_EXYNOS does select
PLAT_SAMSUNG through a convoluted series of other config options.

-Doug
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