diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ata/libata-core.c | 5 | ||||
| -rw-r--r-- | drivers/ata/libata-sff.c | 8 |
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 7f53ea725bce..47c70392ec4d 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -5681,9 +5681,8 @@ int ata_device_add(const struct ata_probe_ent *ent) ap->ioaddr.bmdma_addr, irq_line); - ata_chk_status(ap); - host->ops->irq_clear(ap); - ata_eh_freeze_port(ap); /* freeze port before requesting IRQ */ + /* freeze port before requesting IRQ */ + ata_eh_freeze_port(ap); } /* obtain irq, that may be shared between channels */ diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 95ff186f0ccd..10ee22ae5c15 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -700,6 +700,14 @@ void ata_bmdma_freeze(struct ata_port *ap) writeb(ap->ctl, (void __iomem *)ioaddr->ctl_addr); else outb(ap->ctl, ioaddr->ctl_addr); + + /* Under certain circumstances, some controllers raise IRQ on + * ATA_NIEN manipulation. Also, many controllers fail to mask + * previously pending IRQ on ATA_NIEN assertion. Clear it. + */ + ata_chk_status(ap); + + ap->ops->irq_clear(ap); } /** |