- if (!present) {
- ata_port_printk(ap, KERN_INFO, "SATA port has no device.\n");
- ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
- return 0;
+ return present_mask;
+}
+
+/**
+ * piix_sata_softreset - reset SATA host port via ATA SRST
+ * @ap: port to reset
+ * @classes: resulting classes of attached devices
+ *
+ * Reset SATA host port via ATA SRST. On controllers with
+ * reliable PCS present bits, the bits are used to determine
+ * device presence.
+ *
+ * LOCKING:
+ * Kernel thread context (may sleep)
+ *
+ * RETURNS:
+ * 0 on success, -errno otherwise.
+ */
+static int piix_sata_softreset(struct ata_port *ap, unsigned int *classes)
+{
+ unsigned int present_mask;
+ int i, rc;
+
+ present_mask = piix_sata_present_mask(ap);
+
+ rc = ata_std_softreset(ap, classes);
+ if (rc)
+ return rc;
+
+ for (i = 0; i < ATA_MAX_DEVICES; i++) {
+ if (!(present_mask & (1 << i)))
+ classes[i] = ATA_DEV_NONE;