linux-kernel - Re: [PATCH] serial: Use real irq on UART0 (IRQ = 0) on PPC4xx systems

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Message-ID: <87odr2mkcr.fsf@sleipner.barco.com>
Date:	Mon, 20 Nov 2006 12:24:36 +0100
From:	Peter Korsgaard <jacmet@...site.dk>
To:	linuxppc-embedded@...abs.org
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] serial: Use real irq on UART0 (IRQ = 0) on PPC4xx systems

>>>>> "Stefan" == Stefan Roese <ml@...fan-roese.de> writes:

Hi,

Stefan> This patch fixes a problem seen on multiple 4xx platforms,
Stefan> where the UART0 interrupt number is 0. The macro
Stefan> "is_real_interrupt" lead on those systems to not use an real
Stefan> interrupt but the timer based implementation.

That's not the proper way to fix this. Instead remap the interrupt
number to make 0 invalid.

I sent a similar patch some months ago and that was the reply I got:

http://marc.theaimsgroup.com/?t=114363521500003&r=1&w=2

-- 
Bye, Peter Korsgaard
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