[SPARC64]: Fix virq decomposition.

[linux-2.6-omap-h63xx.git] / drivers / ata / sata_sis.c

diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c
index 33716b00c6b7ec1de843a36772303a035e52ed31..31a2f55aae666c137d8b7bbf8bf556e84978ef0e 100644 (file)
--- a/drivers/ata/sata_sis.c
+++ b/drivers/ata/sata_sis.c
@@ -64,8 +64,8 @@ enum {
 };
 
 static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
-static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg);
-static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
+static int sis_scr_read (struct ata_port *ap, unsigned int sc_reg, u32 *val);
+static int sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
 
 static const struct pci_device_id sis_pci_tbl[] = {
        { PCI_VDEVICE(SI, 0x0180), sis_180 },           /* SiS 964/180 */
@@ -207,36 +207,37 @@ static void sis_scr_cfg_write (struct ata_port *ap, unsigned int sc_reg, u32 val
                pci_write_config_dword(pdev, cfg_addr+0x10, val);
 }
 
-static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg)
+static int sis_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
 {
        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
-       u32 val, val2 = 0;
        u8 pmr;
 
        if (sc_reg > SCR_CONTROL)
-               return 0xffffffffU;
+               return -EINVAL;
 
        if (ap->flags & SIS_FLAG_CFGSCR)
                return sis_scr_cfg_read(ap, sc_reg);
 
        pci_read_config_byte(pdev, SIS_PMR, &pmr);
 
-       val = ioread32(ap->ioaddr.scr_addr + (sc_reg * 4));
+       *val = ioread32(ap->ioaddr.scr_addr + (sc_reg * 4));
 
        if ((pdev->device == 0x0182) || (pdev->device == 0x0183) ||
            (pdev->device == 0x1182) || (pmr & SIS_PMR_COMBINED))
-               val2 = ioread32(ap->ioaddr.scr_addr + (sc_reg * 4) + 0x10);
+               *val |= ioread32(ap->ioaddr.scr_addr + (sc_reg * 4) + 0x10);
+
+       *val &= 0xfffffffb;
 
-       return (val | val2) &  0xfffffffb;
+       return 0;
 }
 
-static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
+static int sis_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val)
 {
        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
        u8 pmr;
 
        if (sc_reg > SCR_CONTROL)
-               return;
+               return -EINVAL;
 
        pci_read_config_byte(pdev, SIS_PMR, &pmr);
 
@@ -248,6 +249,7 @@ static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
                    (pdev->device == 0x1182) || (pmr & SIS_PMR_COMBINED))
                        iowrite32(val, ap->ioaddr.scr_addr + (sc_reg * 4)+0x10);
        }
+       return 0;
 }
 
 static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)