diff --git a/Documentation/scsi/link_power_management_policy.txt b/Documentation/scsi/link_power_management_policy.txt
index d18993d..0285601 100644
--- a/Documentation/scsi/link_power_management_policy.txt
+++ b/Documentation/scsi/link_power_management_policy.txt
@@ -1,8 +1,11 @@
 This parameter allows the user to set the link (interface) power management.
-There are 3 possible options:
+There are 4 possible options:
 
 Value			Effect
 ----------------------------------------------------------------------------
+firmware_defaults	Inherit configuration from the state programmed by
+			the firmware during system init.
+
 min_power		Tell the controller to try to make the link use the
 			least possible power when possible.  This may
 			sacrifice some performance due to increased latency
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index f0c7120..fabcff4 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -684,6 +684,7 @@ static int ahci_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 {
 	struct ata_port *ap = link->ap;
 	struct ahci_host_priv *hpriv = ap->host->private_data;
+	struct ahci_port_priv *ppriv = ap->private_data;
 	struct ahci_port_priv *pp = ap->private_data;
 	void __iomem *port_mmio = ahci_port_base(ap);
 
@@ -701,9 +702,9 @@ static int ahci_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 
 	if (hpriv->cap & HOST_CAP_ALPM) {
 		u32 cmd = readl(port_mmio + PORT_CMD);
+		cmd &= ~(PORT_CMD_ASP | PORT_CMD_ALPE);
 
 		if (policy == ATA_LPM_MAX_POWER || !(hints & ATA_LPM_HIPM)) {
-			cmd &= ~(PORT_CMD_ASP | PORT_CMD_ALPE);
 			cmd |= PORT_CMD_ICC_ACTIVE;
 
 			writel(cmd, port_mmio + PORT_CMD);
@@ -711,6 +712,13 @@ static int ahci_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 
 			/* wait 10ms to be sure we've come out of LPM state */
 			ata_msleep(ap, 10);
+		} else if (policy == ATA_LPM_FIRMWARE_DEFAULTS) {
+			if (ppriv->init_alpe)
+				cmd |= PORT_CMD_ALPE;
+			if (ppriv->init_asp)
+				cmd |= PORT_CMD_ASP;
+
+			writel(cmd, port_mmio + PORT_CMD);
 		} else {
 			cmd |= PORT_CMD_ALPE;
 			if (policy == ATA_LPM_MIN_POWER)
@@ -725,10 +733,17 @@ static int ahci_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 	if ((hpriv->cap2 & HOST_CAP2_SDS) &&
 	    (hpriv->cap2 & HOST_CAP2_SADM) &&
 	    (link->device->flags & ATA_DFLAG_DEVSLP)) {
-		if (policy == ATA_LPM_MIN_POWER)
+		switch (policy) {
+		case ATA_LPM_MIN_POWER:
 			ahci_set_aggressive_devslp(ap, true);
-		else
+			break;
+		case ATA_LPM_FIRMWARE_DEFAULTS:
+			ahci_set_aggressive_devslp(ap, ppriv->init_devslp);
+			break;
+		default:
 			ahci_set_aggressive_devslp(ap, false);
+			break;
+		}
 	}
 
 	if (policy == ATA_LPM_MAX_POWER) {
@@ -1995,6 +2010,7 @@ static void ahci_post_internal_cmd(struct ata_queued_cmd *qc)
 static void ahci_set_aggressive_devslp(struct ata_port *ap, bool sleep)
 {
 	struct ahci_host_priv *hpriv = ap->host->private_data;
+	struct ahci_port_priv *ppriv = ap->private_data;
 	void __iomem *port_mmio = ahci_port_base(ap);
 	struct ata_device *dev = ap->link.device;
 	u32 devslp, dm, dito, mdat, deto;
@@ -2030,26 +2046,32 @@ static void ahci_set_aggressive_devslp(struct ata_port *ap, bool sleep)
 	if (rc)
 		return;
 
-	dm = (devslp & PORT_DEVSLP_DM_MASK) >> PORT_DEVSLP_DM_OFFSET;
-	dito = devslp_idle_timeout / (dm + 1);
-	if (dito > 0x3ff)
-		dito = 0x3ff;
+	if (ppriv->init_devslp) {
+		dito = ppriv->init_dito;
+		deto = ppriv->init_deto;
+		mdat = ppriv->init_mdat;
+	} else {
+		dm = (devslp & PORT_DEVSLP_DM_MASK) >> PORT_DEVSLP_DM_OFFSET;
+		dito = devslp_idle_timeout / (dm + 1);
+		if (dito > 0x3ff)
+			dito = 0x3ff;
 
-	/* Use the nominal value 10 ms if the read MDAT is zero,
-	 * the nominal value of DETO is 20 ms.
-	 */
-	if (dev->devslp_timing[ATA_LOG_DEVSLP_VALID] &
-	    ATA_LOG_DEVSLP_VALID_MASK) {
-		mdat = dev->devslp_timing[ATA_LOG_DEVSLP_MDAT] &
-		       ATA_LOG_DEVSLP_MDAT_MASK;
-		if (!mdat)
+		/* Use the nominal value 10 ms if the read MDAT is zero,
+		 * the nominal value of DETO is 20 ms.
+		 */
+		if (dev->devslp_timing[ATA_LOG_DEVSLP_VALID] &
+		    ATA_LOG_DEVSLP_VALID_MASK) {
+			mdat = dev->devslp_timing[ATA_LOG_DEVSLP_MDAT] &
+				ATA_LOG_DEVSLP_MDAT_MASK;
+			if (!mdat)
+				mdat = 10;
+			deto = dev->devslp_timing[ATA_LOG_DEVSLP_DETO];
+			if (!deto)
+				deto = 20;
+		} else {
 			mdat = 10;
-		deto = dev->devslp_timing[ATA_LOG_DEVSLP_DETO];
-		if (!deto)
 			deto = 20;
-	} else {
-		mdat = 10;
-		deto = 20;
+		}
 	}
 
 	devslp |= ((dito << PORT_DEVSLP_DITO_OFFSET) |
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index c037f33..0a78f01 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2024,7 +2024,7 @@ retry:
 		}
 	}
 
-	if (id[79] & SATA_DIPM)
+	if (id[79] & (1 << SATA_DIPM))
 		dev->init_dipm = true;
 
 	*p_class = class;
@@ -3672,6 +3672,11 @@ int sata_link_scr_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 		return rc;
 
 	switch (policy) {
+	case ATA_LPM_FIRMWARE_DEFAULTS:
+		/* use the values we read at probe */
+		scontrol &= ~(0x7 << 8);
+		scontrol |= (link->init_lpm << 8);
+		break;
 	case ATA_LPM_MAX_POWER:
 		/* disable all LPM transitions */
 		scontrol |= (0x7 << 8);
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 07f41be..c36fa56 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -3519,9 +3519,9 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 		return 0;
 
 	/*
-	 * DIPM is enabled only for MIN_POWER as some devices
-	 * misbehave when the host NACKs transition to SLUMBER.  Order
-	 * device and link configurations such that the host always
+	 * DIPM is enabled only for MIN_POWER and FIRMWARE_DEFAULT as some
+	 * devices misbehave when the host NACKs transition to SLUMBER.
+	 * Order device and link configurations such that the host always
 	 * allows DIPM requests.
 	 */
 	ata_for_each_dev(dev, link, ENABLED) {
@@ -3581,10 +3581,13 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 	if (ap && ap->slave_link)
 		ap->slave_link->lpm_policy = policy;
 
-	/* host config updated, enable DIPM if transitioning to MIN_POWER */
+	/* host config updated, enable DIPM if transitioning to MIN_POWER or
+	 * FIRMWARE_DEFAULT when enabled by firmware
+	 */
 	ata_for_each_dev(dev, link, ENABLED) {
-		if (policy == ATA_LPM_MIN_POWER && !no_dipm &&
-		    ata_id_has_dipm(dev->id)) {
+		if ((policy == ATA_LPM_MIN_POWER && !no_dipm &&
+		     ata_id_has_dipm(dev->id)) ||
+		    (policy == ATA_LPM_FIRMWARE_DEFAULTS && dev->init_dipm)) {
 			err_mask = ata_dev_set_feature(dev,
 					SETFEATURES_SATA_ENABLE, SATA_DIPM);
 			if (err_mask && err_mask != AC_ERR_DEV) {
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 3131adc..f1ea052 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -107,6 +107,7 @@ static const u8 def_control_mpage[CONTROL_MPAGE_LEN] = {
 static const char *ata_lpm_policy_names[] = {
 	[ATA_LPM_UNKNOWN]	= "max_performance",
 	[ATA_LPM_MAX_POWER]	= "max_performance",
+	[ATA_LPM_FIRMWARE_DEFAULTS] = "firmware_defaults",
 	[ATA_LPM_MED_POWER]	= "medium_power",
 	[ATA_LPM_MIN_POWER]	= "min_power",
 };
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 31c149b..57b465d 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -507,6 +507,7 @@ enum ata_completion_errors {
 enum ata_lpm_policy {
 	ATA_LPM_UNKNOWN,
 	ATA_LPM_MAX_POWER,
+	ATA_LPM_FIRMWARE_DEFAULTS,
 	ATA_LPM_MED_POWER,
 	ATA_LPM_MIN_POWER,
 };
