From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] n2100: support assigning XINT1 to UART
Date: Mon, 28 Sep 2009 11:05:35 +0100 [thread overview]
Message-ID: <20090928100535.GE6715@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20090928095813.GJ1773@mail.wantstofly.org>
On Mon, Sep 28, 2009 at 11:58:13AM +0200, Lennert Buytenhek wrote:
> Can't you detect whether the 8250 IRQ is routed at boot? E.g. cause
> the UART to throw an interrupt, check the XINT, clear the interrupt,
> and check the XINT again, and see if the 8250 interrupt status
> corresponds to the XINT or not? (And then printk the result of the
> detection.)
8250 already has support for auto-probing its interrupt.
next prev parent reply other threads:[~2009-09-28 10:05 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-26 19:53 [PATCH 1/2] n2100: support assigning XINT1 to UART Mikael Pettersson
2009-09-28 6:53 ` Aaro Koskinen
2009-09-28 10:28 ` Mikael Pettersson
2009-09-28 9:58 ` Lennert Buytenhek
2009-09-28 10:05 ` Russell King - ARM Linux [this message]
2009-09-28 11:40 ` Mikael Pettersson
2009-09-28 19:39 ` Mikael Pettersson
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