[PATCH] I2C: add i2c driver for TPS6501x

[pandora-kernel.git] / drivers / scsi / libata-core.c

diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 21d194c..36b401f 100644 (file)
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -1295,6 +1295,37 @@ err_out:
        DPRINTK("EXIT, err\n");
 }
 
+
+static inline u8 ata_dev_knobble(struct ata_port *ap)
+{
+       return ((ap->cbl == ATA_CBL_SATA) && (!ata_id_is_sata(ap->device->id)));
+}
+
+/**
+ *     ata_dev_config - Run device specific handlers and check for
+ *                      SATA->PATA bridges
+ *     @ap: Bus 
+ *     @i:  Device
+ *
+ *     LOCKING:
+ */
+ 
+void ata_dev_config(struct ata_port *ap, unsigned int i)
+{
+       /* limit bridge transfers to udma5, 200 sectors */
+       if (ata_dev_knobble(ap)) {
+               printk(KERN_INFO "ata%u(%u): applying bridge limits\n",
+                       ap->id, ap->device->devno);
+               ap->udma_mask &= ATA_UDMA5;
+               ap->host->max_sectors = ATA_MAX_SECTORS;
+               ap->host->hostt->max_sectors = ATA_MAX_SECTORS;
+               ap->device->flags |= ATA_DFLAG_LOCK_SECTORS;
+       }
+
+       if (ap->ops->dev_config)
+               ap->ops->dev_config(ap, &ap->device[i]);
+}
+
 /**
  *     ata_bus_probe - Reset and probe ATA bus
  *     @ap: Bus to probe
@@ -1322,8 +1353,7 @@ static int ata_bus_probe(struct ata_port *ap)
                ata_dev_identify(ap, i);
                if (ata_dev_present(&ap->device[i])) {
                        found = 1;
-                       if (ap->ops->dev_config)
-                               ap->ops->dev_config(ap, &ap->device[i]);
+                       ata_dev_config(ap,i);
                }
        }
 
@@ -2577,7 +2607,6 @@ static void __atapi_pio_bytes(struct ata_queued_cmd *qc, unsigned int bytes)
 next_sg:
        sg = &qc->sg[qc->cursg];
 
-next_page:
        page = sg->page;
        offset = sg->offset + qc->cursg_ofs;
 
@@ -2585,6 +2614,7 @@ next_page:
        page = nth_page(page, (offset >> PAGE_SHIFT));
        offset %= PAGE_SIZE;
 
+       /* don't overrun current sg */
        count = min(sg->length - qc->cursg_ofs, bytes);
 
        /* don't cross page boundaries */
@@ -2609,8 +2639,6 @@ next_page:
        kunmap(page);
 
        if (bytes) {
-               if (qc->cursg_ofs < sg->length)
-                       goto next_page;
                goto next_sg;
        }
 }
@@ -4408,6 +4436,7 @@ EXPORT_SYMBOL_GPL(ata_scsi_release);
 EXPORT_SYMBOL_GPL(ata_host_intr);
 EXPORT_SYMBOL_GPL(ata_dev_classify);
 EXPORT_SYMBOL_GPL(ata_dev_id_string);
+EXPORT_SYMBOL_GPL(ata_dev_config);
 EXPORT_SYMBOL_GPL(ata_scsi_simulate);
 
 #ifdef CONFIG_PCI