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authorTejun Heo <htejun@gmail.com>2008-03-25 06:22:47 +0300
committerJeff Garzik <jgarzik@redhat.com>2008-04-17 23:44:16 +0400
commit358f9a77a668660729e705fde9c3cf69f013aa98 (patch)
treea249660fdd9f252925eff9eaac3ed7836c839f91 /drivers/ata/pata_mpc52xx.c
parentc1bc899f5805771926c9198e2ab4d77122c356a1 (diff)
downloadlinux-358f9a77a668660729e705fde9c3cf69f013aa98.tar.xz
libata: implement and use ata_noop_irq_clear()
->irq_clear() is used to clear IRQ bit of a SFF controller and isn't useful for drivers which don't use libata SFF HSM implementation. However, it's a required callback and many drivers implement their own noop version as placeholder. This patch implements ata_noop_irq_clear and use it to replace those custom placeholders. Also, SFF drivers which don't support BMDMA don't need to use ata_bmdma_irq_clear(). It becomes noop if BMDMA address isn't initialized. Convert them to use ata_noop_irq_clear(). Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'drivers/ata/pata_mpc52xx.c')
-rw-r--r--drivers/ata/pata_mpc52xx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index 5413ebfa72e5..d84e0c8ea02f 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -296,7 +296,7 @@ static struct ata_port_operations mpc52xx_ata_port_ops = {
.qc_prep = ata_qc_prep,
.qc_issue = ata_qc_issue_prot,
.data_xfer = ata_data_xfer,
- .irq_clear = ata_bmdma_irq_clear,
+ .irq_clear = ata_noop_irq_clear,
.irq_on = ata_irq_on,
.port_start = ata_port_start,
};