X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fata%2Flibahci.c;h=acfd0f711069e9da304c95179b14127e20ae1c9c;hb=746919d2668037f297595da9281a22cd558f3d18;hp=a70ff154f586753d6c096b858ae5dbee0ad869c3;hpb=a4883ef6af5e513a1e8c2ab9aab721604aa3a4f5;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index a70ff154f586..acfd0f711069 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -173,6 +173,7 @@ struct ata_port_operations ahci_ops = {
 	.em_store		= ahci_led_store,
 	.sw_activity_show	= ahci_activity_show,
 	.sw_activity_store	= ahci_activity_store,
+	.transmit_led_message	= ahci_transmit_led_message,
 #ifdef CONFIG_PM
 	.port_suspend		= ahci_port_suspend,
 	.port_resume		= ahci_port_resume,
@@ -774,7 +775,7 @@ static void ahci_start_port(struct ata_port *ap)
 
 			/* EM Transmit bit maybe busy during init */
 			for (i = 0; i < EM_MAX_RETRY; i++) {
-				rc = ahci_transmit_led_message(ap,
+				rc = ap->ops->transmit_led_message(ap,
 							       emp->led_state,
 							       4);
 				if (rc == -EBUSY)
@@ -915,7 +916,7 @@ static void ahci_sw_activity_blink(unsigned long arg)
 			led_message |= (1 << 16);
 	}
 	spin_unlock_irqrestore(ap->lock, flags);
-	ahci_transmit_led_message(ap, led_message, 4);
+	ap->ops->transmit_led_message(ap, led_message, 4);
 }
 
 static void ahci_init_sw_activity(struct ata_link *link)
@@ -1044,7 +1045,7 @@ static ssize_t ahci_led_store(struct ata_port *ap, const char *buf,
 	if (emp->blink_policy)
 		state &= ~EM_MSG_LED_VALUE_ACTIVITY;
 
-	return ahci_transmit_led_message(ap, state, size);
+	return ap->ops->transmit_led_message(ap, state, size);
 }
 
 static ssize_t ahci_activity_store(struct ata_device *dev, enum sw_activity val)
@@ -1063,7 +1064,7 @@ static ssize_t ahci_activity_store(struct ata_device *dev, enum sw_activity val)
 		/* set the LED to OFF */
 		port_led_state &= EM_MSG_LED_VALUE_OFF;
 		port_led_state |= (ap->port_no | (link->pmp << 8));
-		ahci_transmit_led_message(ap, port_led_state, 4);
+		ap->ops->transmit_led_message(ap, port_led_state, 4);
 	} else {
 		link->flags |= ATA_LFLAG_SW_ACTIVITY;
 		if (val == BLINK_OFF) {
@@ -1071,7 +1072,7 @@ static ssize_t ahci_activity_store(struct ata_device *dev, enum sw_activity val)
 			port_led_state &= EM_MSG_LED_VALUE_OFF;
 			port_led_state |= (ap->port_no | (link->pmp << 8));
 			port_led_state |= EM_MSG_LED_VALUE_ON; /* check this */
-			ahci_transmit_led_message(ap, port_led_state, 4);
+			ap->ops->transmit_led_message(ap, port_led_state, 4);
 		}
 	}
 	emp->blink_policy = val;
@@ -1412,7 +1413,7 @@ static int ahci_hardreset(struct ata_link *link, unsigned int *class,
 
 	/* clear D2H reception area to properly wait for D2H FIS */
 	ata_tf_init(link->device, &tf);
-	tf.command = 0x80;
+	tf.command = ATA_BUSY;
 	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
 
 	rc = sata_link_hardreset(link, timing, deadline, &online,
@@ -1560,8 +1561,7 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
 		u32 fbs = readl(port_mmio + PORT_FBS);
 		int pmp = fbs >> PORT_FBS_DWE_OFFSET;
 
-		if ((fbs & PORT_FBS_SDE) && (pmp < ap->nr_pmp_links) &&
-		    ata_link_online(&ap->pmp_link[pmp])) {
+		if ((fbs & PORT_FBS_SDE) && (pmp < ap->nr_pmp_links)) {
 			link = &ap->pmp_link[pmp];
 			fbs_need_dec = true;
 		}
@@ -2234,6 +2234,16 @@ static int ahci_port_start(struct ata_port *ap)
 	if (!pp)
 		return -ENOMEM;
 
+	if (ap->host->n_ports > 1) {
+		pp->irq_desc = devm_kzalloc(dev, 8, GFP_KERNEL);
+		if (!pp->irq_desc) {
+			devm_kfree(dev, pp);
+			return -ENOMEM;
+		}
+		snprintf(pp->irq_desc, 8,
+			 "%s%d", dev_driver_string(dev), ap->port_no);
+	}
+
 	/* check FBS capability */
 	if ((hpriv->cap & HOST_CAP_FBS) && sata_pmp_supported(ap)) {
 		void __iomem *port_mmio = ahci_port_base(ap);