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path: root/drivers/ata/sata_promise.c
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Diffstat (limited to 'drivers/ata/sata_promise.c')
-rw-r--r--drivers/ata/sata_promise.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index 489c81768321..fb0dd87f8893 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -147,6 +147,10 @@ struct pdc_port_priv {
dma_addr_t pkt_dma;
};
+struct pdc_host_priv {
+ spinlock_t hard_reset_lock;
+};
+
static int pdc_sata_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
static int pdc_sata_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
static int pdc_ata_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
@@ -801,9 +805,10 @@ static void pdc_hard_reset_port(struct ata_port *ap)
void __iomem *host_mmio = ap->host->iomap[PDC_MMIO_BAR];
void __iomem *pcictl_b1_mmio = host_mmio + PDC_PCI_CTL + 1;
unsigned int ata_no = pdc_ata_port_to_ata_no(ap);
+ struct pdc_host_priv *hpriv = ap->host->private_data;
u8 tmp;
- spin_lock(&ap->host->lock);
+ spin_lock(&hpriv->hard_reset_lock);
tmp = readb(pcictl_b1_mmio);
tmp &= ~(0x10 << ata_no);
@@ -814,7 +819,7 @@ static void pdc_hard_reset_port(struct ata_port *ap)
writeb(tmp, pcictl_b1_mmio);
readb(pcictl_b1_mmio); /* flush */
- spin_unlock(&ap->host->lock);
+ spin_unlock(&hpriv->hard_reset_lock);
}
static int pdc_sata_hardreset(struct ata_link *link, unsigned int *class,
@@ -1182,6 +1187,7 @@ static int pdc_ata_init_one(struct pci_dev *pdev,
const struct ata_port_info *pi = &pdc_port_info[ent->driver_data];
const struct ata_port_info *ppi[PDC_MAX_PORTS];
struct ata_host *host;
+ struct pdc_host_priv *hpriv;
void __iomem *host_mmio;
int n_ports, i, rc;
int is_sataii_tx4;
@@ -1218,6 +1224,11 @@ static int pdc_ata_init_one(struct pci_dev *pdev,
dev_err(&pdev->dev, "failed to allocate host\n");
return -ENOMEM;
}
+ hpriv = devm_kzalloc(&pdev->dev, sizeof *hpriv, GFP_KERNEL);
+ if (!hpriv)
+ return -ENOMEM;
+ spin_lock_init(&hpriv->hard_reset_lock);
+ host->private_data = hpriv;
host->iomap = pcim_iomap_table(pdev);
is_sataii_tx4 = pdc_is_sataii_tx4(pi->flags);