AcoSail/kernel_optimize_test
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[PATCH] sata_sil24: put port into known state before softresetting

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Make sure the controller has no pending commands and ready for command
before issuing SRST.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2006-04-11 22:32:19 +09:00 committed by Jeff Garzik
parent b5bc421c96
commit 2555d6c268
1 changed files with 6 additions and 0 deletions
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6
drivers/scsi/sata_sil24.c
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@ -474,6 +474,12 @@ static int sil24_softreset(struct ata_port *ap, unsigned int *class)
irq_enable = readl(port + PORT_IRQ_ENABLE_SET);
writel(irq_enable, port + PORT_IRQ_ENABLE_CLR);
/* put the port into known state */
if (sil24_init_port(ap)) {
reason ="port not ready";
goto err;
}
/*
* XXX: Not sure whether the following sleep is needed or not.
* The original driver had it. So....