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| author | Sergei Shtylyov <sshtylyov@ru.mvista.com> | 2010-05-07 22:49:02 +0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-05-15 01:35:52 +0400 |
| commit | e42a542ba9cca594897176020445023c54d903d6 (patch) | |
| tree | b2a136581d6fcea9a2a6c534888319b70e15c2af /drivers/ata/pata_scc.c | |
| parent | 41dec29bcb05eb8ec396f70ce791c6e3e4ce4712 (diff) | |
| download | linux-e42a542ba9cca594897176020445023c54d903d6.tar.xz | |
libata: make sff_irq_on() method optional
Now, with the introduction of the sff_set_devctl() method, we can
use it in sff_irq_on() method too -- that way its implementations
in 'pata_bf54x' and 'pata_scc' become virtually identical to
ata_sff_irq_on(). The sff_irq_on() method now becomes quite
superfluous, and the only reason not to remove it completely is
the existence of the 'pata_octeon_cf' driver which implements it
as an empty function. Just make the method optional then, with
ata_sff_irq_on() becoming generic taskfile-bound function, still
global for the 'pata_bf54x' driver to be able to call it from its
thaw() and postreset() methods.
While at it, make the sff_irq_on() method and ata_sff_irq_on() return
'void' as the result is always ignored anyway.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/pata_scc.c')
| -rw-r--r-- | drivers/ata/pata_scc.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c index 86b25fef34a9..d3988991ca68 100644 --- a/drivers/ata/pata_scc.c +++ b/drivers/ata/pata_scc.c @@ -828,29 +828,6 @@ static unsigned int scc_data_xfer (struct ata_device *dev, unsigned char *buf, } /** - * scc_irq_on - Enable interrupts on a port. - * @ap: Port on which interrupts are enabled. - * - * Note: Original code is ata_sff_irq_on(). - */ - -static u8 scc_irq_on (struct ata_port *ap) -{ - struct ata_ioports *ioaddr = &ap->ioaddr; - u8 tmp; - - ap->ctl &= ~ATA_NIEN; - ap->last_ctl = ap->ctl; - - out_be32(ioaddr->ctl_addr, ap->ctl); - tmp = ata_wait_idle(ap); - - ap->ops->sff_irq_clear(ap); - - return tmp; -} - -/** * scc_pata_prereset - prepare for reset * @ap: ATA port to be reset * @deadline: deadline jiffies for the operation @@ -977,7 +954,6 @@ static struct ata_port_operations scc_pata_ops = { .post_internal_cmd = scc_bmdma_stop, .sff_irq_clear = scc_irq_clear, - .sff_irq_on = scc_irq_on, .port_start = scc_port_start, .port_stop = scc_port_stop, |