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[RFC patch] fallback to "no irq" hack for case of no pnp_irq allocated for 8250_pnp

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From: Luming Yu <luming.yu@...>
To: <linux-ia64@...>
Cc: <linux-kernel@...>
Subject: [RFC patch] fallback to "no irq" hack for case of no pnp_irq allocated for 8250_pnp
Date: Tuesday, October 16, 2007 - 10:50 pm

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@intel.com>

 8250_pnp.c |    3 +++
 1 files changed, 3 insertions(+)
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Messages in current thread:
[RFC patch] fallback to "no irq" hack for case of no pnp_irq..., Luming Yu, (Tue Oct 16, 10:50 pm)
Re: [RFC patch] fallback to "no irq" hack for case of no pnp..., Alan Cox, (Wed Oct 17, 6:49 am)
Re: [RFC patch] fallback to "no irq" hack for case of no pnp..., Matthew Wilcox, (Wed Oct 17, 12:40 am)