pata_sil680: 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, 12 insertions, 0 deletions

diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c
index 6cd52594a357..00eefbd84b33 100644
--- a/drivers/ata/pata_sil680.c
+++ b/drivers/ata/pata_sil680.c
@@ -210,6 +210,17 @@ static void sil680_sff_exec_command(struct ata_port *ap,
         ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
 }
 
+static bool sil680_sff_irq_check(struct ata_port *ap)
+{
+        struct pci_dev *pdev    = to_pci_dev(ap->host->dev);
+        unsigned long addr      = sil680_selreg(ap, 1);
+        u8 val;
+
+        pci_read_config_byte(pdev, addr, &val);
+
+        return val & 0x08;
+}
+
 static struct scsi_host_template sil680_sht = {
         ATA_BMDMA_SHT(DRV_NAME),
 };
@@ -218,6 +229,7 @@ static struct scsi_host_template sil680_sht = {
 static struct ata_port_operations sil680_port_ops = {
         .inherits               = &ata_bmdma32_port_ops,
         .sff_exec_command       = sil680_sff_exec_command,
+        .sff_irq_check          = sil680_sff_irq_check,
         .cable_detect           = sil680_cable_detect,
         .set_piomode            = sil680_set_piomode,
         .set_dmamode            = sil680_set_dmamode,