diff options
Diffstat (limited to 'drivers/ata/pata_scc.c')
| -rw-r--r-- | drivers/ata/pata_scc.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c index 63fe99a10cd1..95f04b81352f 100644 --- a/drivers/ata/pata_scc.c +++ b/drivers/ata/pata_scc.c @@ -839,38 +839,6 @@ static u8 scc_irq_on (struct ata_port *ap) } /** - * scc_irq_ack - Acknowledge a device interrupt. - * @ap: Port on which interrupts are enabled. - * - * Note: Original code is ata_irq_ack(). - */ - -static u8 scc_irq_ack (struct ata_port *ap, unsigned int chk_drq) -{ - unsigned int bits = chk_drq ? ATA_BUSY | ATA_DRQ : ATA_BUSY; - u8 host_stat, post_stat, status; - - status = ata_busy_wait(ap, bits, 1000); - if (status & bits) - if (ata_msg_err(ap)) - printk(KERN_ERR "abnormal status 0x%X\n", status); - - /* get controller status; clear intr, err bits */ - host_stat = in_be32(ap->ioaddr.bmdma_addr + SCC_DMA_STATUS); - out_be32(ap->ioaddr.bmdma_addr + SCC_DMA_STATUS, - host_stat | ATA_DMA_INTR | ATA_DMA_ERR); - - post_stat = in_be32(ap->ioaddr.bmdma_addr + SCC_DMA_STATUS); - - if (ata_msg_intr(ap)) - printk(KERN_INFO "%s: irq ack: host_stat 0x%X, new host_stat 0x%X, drv_stat 0x%X\n", - __FUNCTION__, - host_stat, post_stat, status); - - return status; -} - -/** * scc_bmdma_freeze - Freeze BMDMA controller port * @ap: port to freeze * @@ -1047,7 +1015,6 @@ static const struct ata_port_operations scc_pata_ops = { .irq_clear = scc_bmdma_irq_clear, .irq_on = scc_irq_on, - .irq_ack = scc_irq_ack, .port_start = scc_port_start, .port_stop = scc_port_stop, |