From e42a542ba9cca594897176020445023c54d903d6 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Fri, 7 May 2010 22:49:02 +0400 Subject: 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 Signed-off-by: Jeff Garzik --- drivers/ata/pata_scc.c | 24 ------------------------ 1 file changed, 24 deletions(-) (limited to 'drivers/ata/pata_scc.c') 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 @@ -827,29 +827,6 @@ static unsigned int scc_data_xfer (struct ata_device *dev, unsigned char *buf, return words << 1; } -/** - * 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 @@ -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, -- cgit v1.2.1