pata_sl82c105: implement sff_irq_check() method

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c
index 98548f640c8e..7f5d020ed56c 100644
--- a/drivers/ata/pata_sl82c105.c
+++ b/drivers/ata/pata_sl82c105.c
@@ -227,6 +227,16 @@ static int sl82c105_qc_defer(struct ata_queued_cmd *qc)
         return 0;
 }
 
+static bool sl82c105_sff_irq_check(struct ata_port *ap)
+{
+        struct pci_dev *pdev    = to_pci_dev(ap->host->dev);
+        u32 val, mask           = ap->port_no ? CTRL_IDE_IRQB : CTRL_IDE_IRQA;
+
+        pci_read_config_dword(pdev, 0x40, &val);
+
+        return val & mask;
+}
+
 static struct scsi_host_template sl82c105_sht = {
         ATA_BMDMA_SHT(DRV_NAME),
 };
@@ -239,6 +249,7 @@ static struct ata_port_operations sl82c105_port_ops = {
         .cable_detect   = ata_cable_40wire,
         .set_piomode    = sl82c105_set_piomode,
         .prereset       = sl82c105_pre_reset,
+        .sff_irq_check  = sl82c105_sff_irq_check,
 };
 
 /**