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* [PATCH] ahci: remove IRQ mask clearing from init_controller()
@ 2006-08-07  2:39 Tejun Heo
  2006-08-09  3:51 ` Jeff Garzik
  2006-08-09  4:16 ` Jeff Garzik
  0 siblings, 2 replies; 4+ messages in thread
From: Tejun Heo @ 2006-08-07  2:39 UTC (permalink / raw)
  To: Jeff Garzik, linux-ide

Initial IRQ mask clearing is done by libata-core by freezing all ports
prior to requesting IRQ.  Remove redundant IRQ clearing from
init_controller().

Signed-off-by: Tejun Heo <htejun@gmail.com>

---

 drivers/scsi/ahci.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

049892ed973dc00569e26130826fef0000fc7577
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index f5734a9..68fd766 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -662,14 +662,13 @@ #endif
 		VPRINTK("PORT_SCR_ERR 0x%x\n", tmp);
 		writel(tmp, port_mmio + PORT_SCR_ERR);
 
-		/* clear & turn off port IRQ */
+		/* clear port IRQ */
 		tmp = readl(port_mmio + PORT_IRQ_STAT);
 		VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
 		if (tmp)
 			writel(tmp, port_mmio + PORT_IRQ_STAT);
 
 		writel(1 << i, mmio + HOST_IRQ_STAT);
-		writel(0, port_mmio + PORT_IRQ_MASK);
 	}
 
 	tmp = readl(mmio + HOST_CTL);
-- 
1.3.2


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2006-08-09  4:16 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2006-08-07  2:39 [PATCH] ahci: remove IRQ mask clearing from init_controller() Tejun Heo
2006-08-09  3:51 ` Jeff Garzik
2006-08-09  4:01   ` Tejun Heo
2006-08-09  4:16 ` Jeff Garzik

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