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Message-ID: <3877989d0710161950n3d255330lf55e190dde628277@mail.gmail.com>
Date:	Wed, 17 Oct 2007 10:50:53 +0800
From:	"Luming Yu" <luming.yu@...il.com>
To:	linux-ia64@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: [RFC patch] fallback to "no irq" hack for case of no pnp_irq allocated for 8250_pnp

Hello list,

There is a "ttyS1 irq is -1" problem observed on tiger4 which cause
the serial port broken.
It is because that there is __no__ ACPI IRQ resource assigned for the
serial port. So the value of the IRQ for the port is never changed
since it got initialized to -1. The attached patch falls back to the
"no irq" hack for this case. It works for me. Please review and test.

Thanks,
Luming

Signed-off-by: Yu Luming <luming.yu@...el.com>

 8250_pnp.c |    3 +++
 1 files changed, 3 insertions(+)

Download attachment "8250_pnp.patch" of type "application/octet-stream" (451 bytes)

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