[SCSI] mac_esp: fix for quadras with two esp chips

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On the Quadra 900 and 950 there are two ESP chips sharing one IRQ. Because
the shared IRQ is edge-triggered, we must make sure that an IRQ transition
from one chip doesn't go unnoticed when the shared IRQ is already active
due to the other. This patch prevents interrupts getting lost so that both
SCSI busses may be used simultaneously.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

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Finn Thain 2008-11-17 21:37:45 +01:00 • committed by James Bottomley

parent 09e13e9167

commit da244654c6

1 changed files with 58 additions and 23 deletions

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drivers/scsi/mac_esp.c

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