Merge tag 'ata-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata

Pull ATA updates from Damien Le Moal:

 - Modify the AHCI driver to print the link power management policy used
   on scan, to help with debugging issues (Niklas)

 - Add support for the ASM2116 series adapters to the AHCI driver
   (Szuying)

 - Prepare libata for the coming gcc and Clang __counted_by attribute
   (Kees)

 - Following the recent estensive fixing of libata suspend/resume
   handling, several patches further cleanup and improve disk power
   state management (me)

 - Reduce the verbosity of some error messages for non-fatal temporary
   errors, e.g. slow response to device reset when scanning a port, and
   warning messages that are in fact normal, e.g. disabling a device on
   suspend or when removing it (me)

 - Cleanup DMA helper functions (me)

 - Fix sata_mv drive handling of potential errors durring probe (Ma)

 - Cleanup the xgene and imx drivers using the functions
   of_device_get_match_data() and device_get_match_data() (Rob)

 - Improve the tegra driver device tree (Rob)

* tag 'ata-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: (22 commits)
  dt-bindings: ata: tegra: Disallow undefined properties
  ata: libata-core: Improve ata_dev_power_set_active()
  ata: libata-eh: Spinup disk on resume after revalidation
  ata: imx: Use device_get_match_data()
  ata: xgene: Use of_device_get_match_data()
  ata: sata_mv: aspeed: fix value check in mv_platform_probe()
  ata: ahci: Add Intel Alder Lake-P AHCI controller to low power chipsets list
  ata: libata: Cleanup inline DMA helper functions
  ata: libata-eh: Reduce "disable device" message verbosity
  ata: libata-eh: Improve reset error messages
  ata: libata-sata: Improve ata_sas_slave_configure()
  ata: libata-core: Do not resume runtime suspended ports
  ata: libata-core: Do not poweroff runtime suspended ports
  ata: libata-core: Remove ata_port_resume_async()
  ata: libata-core: Remove ata_port_suspend_async()
  ata: libata-core: Detach a port devices on shutdown
  ata: libata-core: Synchronize ata_port_detach() with hotplug
  ata: libata-scsi: Cleanup ata_scsi_start_stop_xlat()
  scsi: Remove scsi device no_start_on_resume flag
  ata: libata: Annotate struct ata_cpr_log with __counted_by
  ...

16 files changed, 201 insertions, 185 deletions

diff --git a/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml b/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
index 3c7a2425f3e6..a17297cbefcb 100644
--- a/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
+++ b/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
@@ -151,7 +151,7 @@ allOf:
         - interconnects
         - power-domains
 
-additionalProperties: true
+additionalProperties: false
 
 examples:
   - |
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 08745e7db820..3a5f3255f51b 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -423,6 +423,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_low_power }, /* Comet Lake PCH RAID */
 	/* Elkhart Lake IDs 0x4b60 & 0x4b62 https://sata-io.org/product/8803 not tested yet */
 	{ PCI_VDEVICE(INTEL, 0x4b63), board_ahci_low_power }, /* Elkhart Lake AHCI */
+	{ PCI_VDEVICE(INTEL, 0x7ae2), board_ahci_low_power }, /* Alder Lake-P AHCI */
 
 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
@@ -604,6 +605,11 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci },   /* ASM1061R */
 	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci },   /* ASM1062R */
 	{ PCI_VDEVICE(ASMEDIA, 0x0624), board_ahci },   /* ASM1062+JMB575 */
+	{ PCI_VDEVICE(ASMEDIA, 0x1062), board_ahci },	/* ASM1062A */
+	{ PCI_VDEVICE(ASMEDIA, 0x1064), board_ahci },	/* ASM1064 */
+	{ PCI_VDEVICE(ASMEDIA, 0x1164), board_ahci },   /* ASM1164 */
+	{ PCI_VDEVICE(ASMEDIA, 0x1165), board_ahci },   /* ASM1165 */
+	{ PCI_VDEVICE(ASMEDIA, 0x1166), board_ahci },   /* ASM1166 */
 
 	/*
 	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
diff --git a/drivers/ata/ahci_imx.c b/drivers/ata/ahci_imx.c
index 9fa005965f3b..cb768f66f0a7 100644
--- a/drivers/ata/ahci_imx.c
+++ b/drivers/ata/ahci_imx.c
@@ -9,10 +9,11 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/ahci_platform.h>
 #include <linux/gpio/consumer.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/mfd/syscon.h>
 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
 #include <linux/libata.h>
@@ -1050,16 +1051,11 @@ static int imx8_sata_probe(struct device *dev, struct imx_ahci_priv *imxpriv)
 static int imx_ahci_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	const struct of_device_id *of_id;
 	struct ahci_host_priv *hpriv;
 	struct imx_ahci_priv *imxpriv;
 	unsigned int reg_val;
 	int ret;
 
-	of_id = of_match_device(imx_ahci_of_match, dev);
-	if (!of_id)
-		return -EINVAL;
-
 	imxpriv = devm_kzalloc(dev, sizeof(*imxpriv), GFP_KERNEL);
 	if (!imxpriv)
 		return -ENOMEM;
@@ -1067,7 +1063,7 @@ static int imx_ahci_probe(struct platform_device *pdev)
 	imxpriv->ahci_pdev = pdev;
 	imxpriv->no_device = false;
 	imxpriv->first_time = true;
-	imxpriv->type = (unsigned long)of_id->data;
+	imxpriv->type = (enum ahci_imx_type)device_get_match_data(dev);
 
 	imxpriv->sata_clk = devm_clk_get(dev, "sata");
 	if (IS_ERR(imxpriv->sata_clk)) {
diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index ccef5e63bdf9..81a1d838c0fc 100644
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -13,9 +13,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/ahci_platform.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
-#include <linux/of_irq.h>
+#include <linux/of.h>
 #include <linux/phy/phy.h>
 #include "ahci.h"
 
@@ -735,7 +733,6 @@ static int xgene_ahci_probe(struct platform_device *pdev)
 	struct ahci_host_priv *hpriv;
 	struct xgene_ahci_context *ctx;
 	struct resource *res;
-	const struct of_device_id *of_devid;
 	enum xgene_ahci_version version = XGENE_AHCI_V1;
 	const struct ata_port_info *ppi[] = { &xgene_ahci_v1_port_info,
 					      &xgene_ahci_v2_port_info };
@@ -778,10 +775,8 @@ static int xgene_ahci_probe(struct platform_device *pdev)
 		ctx->csr_mux = csr;
 	}
 
-	of_devid = of_match_device(xgene_ahci_of_match, dev);
-	if (of_devid) {
-		if (of_devid->data)
-			version = (unsigned long) of_devid->data;
+	if (dev->of_node) {
+		version = (enum xgene_ahci_version)of_device_get_match_data(dev);
 	}
 #ifdef CONFIG_ACPI
 	else {
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index f1263364fa97..1a63200ea437 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -2730,7 +2730,7 @@ static int ahci_host_activate_multi_irqs(struct ata_host *host,
 
 		if (rc)
 			return rc;
-		ata_port_desc(host->ports[i], "irq %d", irq);
+		ata_port_desc_misc(host->ports[i], irq);
 	}
 
 	return ata_host_register(host, sht);
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index d8cc1e27a125..6fb4e8dc8c3c 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1972,6 +1972,35 @@ retry:
 	return rc;
 }
 
+bool ata_dev_power_init_tf(struct ata_device *dev, struct ata_taskfile *tf,
+			   bool set_active)
+{
+	/* Only applies to ATA and ZAC devices */
+	if (dev->class != ATA_DEV_ATA && dev->class != ATA_DEV_ZAC)
+		return false;
+
+	ata_tf_init(dev, tf);
+	tf->flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR;
+	tf->protocol = ATA_PROT_NODATA;
+
+	if (set_active) {
+		/* VERIFY for 1 sector at lba=0 */
+		tf->command = ATA_CMD_VERIFY;
+		tf->nsect = 1;
+		if (dev->flags & ATA_DFLAG_LBA) {
+			tf->flags |= ATA_TFLAG_LBA;
+			tf->device |= ATA_LBA;
+		} else {
+			/* CHS */
+			tf->lbal = 0x1; /* sect */
+		}
+	} else {
+		tf->command = ATA_CMD_STANDBYNOW1;
+	}
+
+	return true;
+}
+
 /**
  *	ata_dev_power_set_standby - Set a device power mode to standby
  *	@dev: target device
@@ -1988,10 +2017,6 @@ void ata_dev_power_set_standby(struct ata_device *dev)
 	struct ata_taskfile tf;
 	unsigned int err_mask;
 
-	/* Issue STANDBY IMMEDIATE command only if supported by the device */
-	if (dev->class != ATA_DEV_ATA && dev->class != ATA_DEV_ZAC)
-		return;
-
 	/*
 	 * Some odd clown BIOSes issue spindown on power off (ACPI S4 or S5)
 	 * causing some drives to spin up and down again. For these, do nothing
@@ -2005,10 +2030,9 @@ void ata_dev_power_set_standby(struct ata_device *dev)
 	    system_entering_hibernation())
 		return;
 
-	ata_tf_init(dev, &tf);
-	tf.flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR;
-	tf.protocol = ATA_PROT_NODATA;
-	tf.command = ATA_CMD_STANDBYNOW1;
+	/* Issue STANDBY IMMEDIATE command only if supported by the device */
+	if (!ata_dev_power_init_tf(dev, &tf, false))
+		return;
 
 	ata_dev_notice(dev, "Entering standby power mode\n");
 
@@ -2018,6 +2042,33 @@ void ata_dev_power_set_standby(struct ata_device *dev)
 			    err_mask);
 }
 
+static bool ata_dev_power_is_active(struct ata_device *dev)
+{
+	struct ata_taskfile tf;
+	unsigned int err_mask;
+
+	ata_tf_init(dev, &tf);
+	tf.flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR;
+	tf.protocol = ATA_PROT_NODATA;
+	tf.command = ATA_CMD_CHK_POWER;
+
+	err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0, 0);
+	if (err_mask) {
+		ata_dev_err(dev, "Check power mode failed (err_mask=0x%x)\n",
+			    err_mask);
+		/*
+		 * Assume we are in standby mode so that we always force a
+		 * spinup in ata_dev_power_set_active().
+		 */
+		return false;
+	}
+
+	ata_dev_dbg(dev, "Power mode: 0x%02x\n", tf.nsect);
+
+	/* Active or idle */
+	return tf.nsect == 0xff;
+}
+
 /**
  *	ata_dev_power_set_active -  Set a device power mode to active
  *	@dev: target device
@@ -2038,21 +2089,15 @@ void ata_dev_power_set_active(struct ata_device *dev)
 	 * Issue READ VERIFY SECTORS command for 1 sector at lba=0 only
 	 * if supported by the device.
 	 */
-	if (dev->class != ATA_DEV_ATA && dev->class != ATA_DEV_ZAC)
+	if (!ata_dev_power_init_tf(dev, &tf, true))
 		return;
 
-	ata_tf_init(dev, &tf);
-	tf.flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR;
-	tf.protocol = ATA_PROT_NODATA;
-	tf.command = ATA_CMD_VERIFY;
-	tf.nsect = 1;
-	if (dev->flags & ATA_DFLAG_LBA) {
-		tf.flags |= ATA_TFLAG_LBA;
-		tf.device |= ATA_LBA;
-	} else {
-		/* CHS */
-		tf.lbal = 0x1; /* sect */
-	}
+	/*
+	 * Check the device power state & condition and force a spinup with
+	 * VERIFY command only if the drive is not already ACTIVE or IDLE.
+	 */
+	if (ata_dev_power_is_active(dev))
+		return;
 
 	ata_dev_notice(dev, "Entering active power mode\n");
 
@@ -5155,18 +5200,8 @@ static void ata_port_request_pm(struct ata_port *ap, pm_message_t mesg,
 		ata_port_wait_eh(ap);
 }
 
-/*
- * On some hardware, device fails to respond after spun down for suspend.  As
- * the device won't be used before being resumed, we don't need to touch the
- * device.  Ask EH to skip the usual stuff and proceed directly to suspend.
- *
- * http://thread.gmane.org/gmane.linux.ide/46764
- */
-static const unsigned int ata_port_suspend_ehi = ATA_EHI_QUIET
-						 | ATA_EHI_NO_AUTOPSY
-						 | ATA_EHI_NO_RECOVERY;
-
-static void ata_port_suspend(struct ata_port *ap, pm_message_t mesg)
+static void ata_port_suspend(struct ata_port *ap, pm_message_t mesg,
+			     bool async)
 {
 	/*
 	 * We are about to suspend the port, so we do not care about
@@ -5176,20 +5211,18 @@ static void ata_port_suspend(struct ata_port *ap, pm_message_t mesg)
 	 */
 	cancel_delayed_work_sync(&ap->scsi_rescan_task);
 
-	ata_port_request_pm(ap, mesg, 0, ata_port_suspend_ehi, false);
-}
-
-static void ata_port_suspend_async(struct ata_port *ap, pm_message_t mesg)
-{
 	/*
-	 * We are about to suspend the port, so we do not care about
-	 * scsi_rescan_device() calls scheduled by previous resume operations.
-	 * The next resume will schedule the rescan again. So cancel any rescan
-	 * that is not done yet.
+	 * On some hardware, device fails to respond after spun down for
+	 * suspend. As the device will not be used until being resumed, we
+	 * do not need to touch the device. Ask EH to skip the usual stuff
+	 * and proceed directly to suspend.
+	 *
+	 * http://thread.gmane.org/gmane.linux.ide/46764
 	 */
-	cancel_delayed_work_sync(&ap->scsi_rescan_task);
-
-	ata_port_request_pm(ap, mesg, 0, ata_port_suspend_ehi, true);
+	ata_port_request_pm(ap, mesg, 0,
+			    ATA_EHI_QUIET | ATA_EHI_NO_AUTOPSY |
+			    ATA_EHI_NO_RECOVERY,
+			    async);
 }
 
 static int ata_port_pm_suspend(struct device *dev)
@@ -5199,7 +5232,7 @@ static int ata_port_pm_suspend(struct device *dev)
 	if (pm_runtime_suspended(dev))
 		return 0;
 
-	ata_port_suspend(ap, PMSG_SUSPEND);
+	ata_port_suspend(ap, PMSG_SUSPEND, false);
 	return 0;
 }
 
@@ -5210,35 +5243,29 @@ static int ata_port_pm_freeze(struct device *dev)
 	if (pm_runtime_suspended(dev))
 		return 0;
 
-	ata_port_suspend(ap, PMSG_FREEZE);
+	ata_port_suspend(ap, PMSG_FREEZE, false);
 	return 0;
 }
 
 static int ata_port_pm_poweroff(struct device *dev)
 {
-	ata_port_suspend(to_ata_port(dev), PMSG_HIBERNATE);
+	if (!pm_runtime_suspended(dev))
+		ata_port_suspend(to_ata_port(dev), PMSG_HIBERNATE, false);
 	return 0;
 }
 
-static const unsigned int ata_port_resume_ehi = ATA_EHI_NO_AUTOPSY
-						| ATA_EHI_QUIET;
-
-static void ata_port_resume(struct ata_port *ap, pm_message_t mesg)
-{
-	ata_port_request_pm(ap, mesg, ATA_EH_RESET, ata_port_resume_ehi, false);
-}
-
-static void ata_port_resume_async(struct ata_port *ap, pm_message_t mesg)
+static void ata_port_resume(struct ata_port *ap, pm_message_t mesg,
+			    bool async)
 {
-	ata_port_request_pm(ap, mesg, ATA_EH_RESET, ata_port_resume_ehi, true);
+	ata_port_request_pm(ap, mesg, ATA_EH_RESET,
+			    ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET,
+			    async);
 }
 
 static int ata_port_pm_resume(struct device *dev)
 {
-	ata_port_resume_async(to_ata_port(dev), PMSG_RESUME);
-	pm_runtime_disable(dev);
-	pm_runtime_set_active(dev);
-	pm_runtime_enable(dev);
+	if (!pm_runtime_suspended(dev))
+		ata_port_resume(to_ata_port(dev), PMSG_RESUME, true);
 	return 0;
 }
 
@@ -5268,13 +5295,13 @@ static int ata_port_runtime_idle(struct device *dev)
 
 static int ata_port_runtime_suspend(struct device *dev)
 {
-	ata_port_suspend(to_ata_port(dev), PMSG_AUTO_SUSPEND);
+	ata_port_suspend(to_ata_port(dev), PMSG_AUTO_SUSPEND, false);
 	return 0;
 }
 
 static int ata_port_runtime_resume(struct device *dev)
 {
-	ata_port_resume(to_ata_port(dev), PMSG_AUTO_RESUME);
+	ata_port_resume(to_ata_port(dev), PMSG_AUTO_RESUME, false);
 	return 0;
 }
 
@@ -5298,13 +5325,13 @@ static const struct dev_pm_ops ata_port_pm_ops = {
  */
 void ata_sas_port_suspend(struct ata_port *ap)
 {
-	ata_port_suspend_async(ap, PMSG_SUSPEND);
+	ata_port_suspend(ap, PMSG_SUSPEND, true);
 }
 EXPORT_SYMBOL_GPL(ata_sas_port_suspend);
 
 void ata_sas_port_resume(struct ata_port *ap)
 {
-	ata_port_resume_async(ap, PMSG_RESUME);
+	ata_port_resume(ap, PMSG_RESUME, true);
 }
 EXPORT_SYMBOL_GPL(ata_sas_port_resume);
 
@@ -6026,7 +6053,7 @@ int ata_host_activate(struct ata_host *host, int irq,
 		return rc;
 
 	for (i = 0; i < host->n_ports; i++)
-		ata_port_desc(host->ports[i], "irq %d", irq);
+		ata_port_desc_misc(host->ports[i], irq);
 
 	rc = ata_host_register(host, sht);
 	/* if failed, just free the IRQ and leave ports alone */
@@ -6054,6 +6081,9 @@ static void ata_port_detach(struct ata_port *ap)
 	struct ata_link *link;
 	struct ata_device *dev;
 
+	/* Ensure ata_port probe has completed */
+	async_synchronize_cookie(ap->cookie + 1);
+
 	/* Wait for any ongoing EH */
 	ata_port_wait_eh(ap);
 
@@ -6118,11 +6148,8 @@ void ata_host_detach(struct ata_host *host)
 {
 	int i;
 
-	for (i = 0; i < host->n_ports; i++) {
-		/* Ensure ata_port probe has completed */
-		async_synchronize_cookie(host->ports[i]->cookie + 1);
+	for (i = 0; i < host->n_ports; i++)
 		ata_port_detach(host->ports[i]);
-	}
 
 	/* the host is dead now, dissociate ACPI */
 	ata_acpi_dissociate(host);
@@ -6153,10 +6180,24 @@ EXPORT_SYMBOL_GPL(ata_pci_remove_one);
 void ata_pci_shutdown_one(struct pci_dev *pdev)
 {
 	struct ata_host *host = pci_get_drvdata(pdev);
+	struct ata_port *ap;
+	unsigned long flags;
 	int i;
 
+	/* Tell EH to disable all devices */
 	for (i = 0; i < host->n_ports; i++) {
-		struct ata_port *ap = host->ports[i];
+		ap = host->ports[i];
+		spin_lock_irqsave(ap->lock, flags);
+		ap->pflags |= ATA_PFLAG_UNLOADING;
+		ata_port_schedule_eh(ap);
+		spin_unlock_irqrestore(ap->lock, flags);
+	}
+
+	for (i = 0; i < host->n_ports; i++) {
+		ap = host->ports[i];
+
+		/* Wait for EH to complete before freezing the port */
+		ata_port_wait_eh(ap);
 
 		ap->pflags |= ATA_PFLAG_FROZEN;
 
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 5686353e442c..b0d6e69c4a5b 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -494,6 +494,18 @@ void ata_eh_release(struct ata_port *ap)
 	mutex_unlock(&ap->host->eh_mutex);
 }
 
+static void ata_eh_dev_disable(struct ata_device *dev)
+{
+	ata_acpi_on_disable(dev);
+	ata_down_xfermask_limit(dev, ATA_DNXFER_FORCE_PIO0 | ATA_DNXFER_QUIET);
+	dev->class++;
+
+	/* From now till the next successful probe, ering is used to
+	 * track probe failures.  Clear accumulated device error info.
+	 */
+	ata_ering_clear(&dev->ering);
+}
+
 static void ata_eh_unload(struct ata_port *ap)
 {
 	struct ata_link *link;
@@ -517,8 +529,8 @@ static void ata_eh_unload(struct ata_port *ap)
 	 */
 	ata_for_each_link(link, ap, PMP_FIRST) {
 		sata_scr_write(link, SCR_CONTROL, link->saved_scontrol & 0xff0);
-		ata_for_each_dev(dev, link, ALL)
-			ata_dev_disable(dev);
+		ata_for_each_dev(dev, link, ENABLED)
+			ata_eh_dev_disable(dev);
 	}
 
 	/* freeze and set UNLOADED */
@@ -1211,14 +1223,8 @@ void ata_dev_disable(struct ata_device *dev)
 		return;
 
 	ata_dev_warn(dev, "disable device\n");
-	ata_acpi_on_disable(dev);
-	ata_down_xfermask_limit(dev, ATA_DNXFER_FORCE_PIO0 | ATA_DNXFER_QUIET);
-	dev->class++;
 
-	/* From now till the next successful probe, ering is used to
-	 * track probe failures.  Clear accumulated device error info.
-	 */
-	ata_ering_clear(&dev->ering);
+	ata_eh_dev_disable(dev);
 }
 EXPORT_SYMBOL_GPL(ata_dev_disable);
 
@@ -1240,12 +1246,12 @@ void ata_eh_detach_dev(struct ata_device *dev)
 
 	/*
 	 * If the device is still enabled, transition it to standby power mode
-	 * (i.e. spin down HDDs).
+	 * (i.e. spin down HDDs) and disable it.
 	 */
-	if (ata_dev_enabled(dev))
+	if (ata_dev_enabled(dev)) {
 		ata_dev_power_set_standby(dev);
-
-	ata_dev_disable(dev);
+		ata_eh_dev_disable(dev);
+	}
 
 	spin_lock_irqsave(ap->lock, flags);
 
@@ -2909,6 +2915,8 @@ int ata_eh_reset(struct ata_link *link, int classify,
 		 */
 		if (ata_is_host_link(link))
 			ata_eh_thaw_port(ap);
+		ata_link_warn(link, "%s failed\n",
+			      reset == hardreset ? "hardreset" : "softreset");
 		goto out;
 	}
 
@@ -3043,15 +3051,6 @@ static int ata_eh_revalidate_and_attach(struct ata_link *link,
 		if (ehc->i.flags & ATA_EHI_DID_RESET)
 			readid_flags |= ATA_READID_POSTRESET;
 
-		/*
-		 * When resuming, before executing any command, make sure to
-		 * transition the device to the active power mode.
-		 */
-		if ((action & ATA_EH_SET_ACTIVE) && ata_dev_enabled(dev)) {
-			ata_dev_power_set_active(dev);
-			ata_eh_done(link, dev, ATA_EH_SET_ACTIVE);
-		}
-
 		if ((action & ATA_EH_REVALIDATE) && ata_dev_enabled(dev)) {
 			WARN_ON(dev->class == ATA_DEV_PMP);
 
@@ -3848,6 +3847,17 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
 			}
 		}
 
+		/*
+		 * Make sure to transition devices to the active power mode
+		 * if needed (e.g. if we were scheduled on system resume).
+		 */
+		ata_for_each_dev(dev, link, ENABLED) {
+			if (ehc->i.dev_action[dev->devno] & ATA_EH_SET_ACTIVE) {
+				ata_dev_power_set_active(dev);
+				ata_eh_done(link, dev, ATA_EH_SET_ACTIVE);
+			}
+		}
+
 		/* retry flush if necessary */
 		ata_for_each_dev(dev, link, ALL) {
 			if (dev->class != ATA_DEV_ATA &&
diff --git a/drivers/ata/libata-sata.c b/drivers/ata/libata-sata.c
index a701e1538482..b6656c287175 100644
--- a/drivers/ata/libata-sata.c
+++ b/drivers/ata/libata-sata.c
@@ -621,7 +621,6 @@ int sata_link_hardreset(struct ata_link *link, const unsigned int *timing,
 		/* online is set iff link is online && reset succeeded */
 		if (online)
 			*online = false;
-		ata_link_err(link, "COMRESET failed (errno=%d)\n", rc);
 	}
 	return rc;
 }
@@ -1182,8 +1181,8 @@ EXPORT_SYMBOL_GPL(ata_sas_tport_delete);
 int ata_sas_slave_configure(struct scsi_device *sdev, struct ata_port *ap)
 {
 	ata_scsi_sdev_config(sdev);
-	ata_scsi_dev_config(sdev, ap->link.device);
-	return 0;
+
+	return ata_scsi_dev_config(sdev, ap->link.device);
 }
 EXPORT_SYMBOL_GPL(ata_sas_slave_configure);
 
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 3a957c4da409..c10ff8985203 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1203,7 +1203,6 @@ EXPORT_SYMBOL_GPL(ata_scsi_slave_destroy);
 static unsigned int ata_scsi_start_stop_xlat(struct ata_queued_cmd *qc)
 {
 	struct scsi_cmnd *scmd = qc->scsicmd;
-	struct ata_taskfile *tf = &qc->tf;
 	const u8 *cdb = scmd->cmnd;
 	u16 fp;
 	u8 bp = 0xff;
@@ -1213,54 +1212,24 @@ static unsigned int ata_scsi_start_stop_xlat(struct ata_queued_cmd *qc)
 		goto invalid_fld;
 	}
 
-	tf->flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR;
-	tf->protocol = ATA_PROT_NODATA;
-	if (cdb[1] & 0x1) {
-		;	/* ignore IMMED bit, violates sat-r05 */
-	}
+	/* LOEJ bit set not supported */
 	if (cdb[4] & 0x2) {
 		fp = 4;
 		bp = 1;
-		goto invalid_fld;       /* LOEJ bit set not supported */
+		goto invalid_fld;
 	}
+
+	/* Power conditions not supported */
 	if (((cdb[4] >> 4) & 0xf) != 0) {
 		fp = 4;
 		bp = 3;
-		goto invalid_fld;       /* power conditions not supported */
+		goto invalid_fld;
 	}
 
-	if (cdb[4] & 0x1) {
-		tf->nsect = 1;  /* 1 sector, lba=0 */
-
-		if (qc->dev->flags & ATA_DFLAG_LBA) {
-			tf->flags |= ATA_TFLAG_LBA;
-
-			tf->lbah = 0x0;
-			tf->lbam = 0x0;
-			tf->lbal = 0x0;
-			tf->device |= ATA_LBA;
-		} else {
-			/* CHS */
-			tf->lbal = 0x1; /* sect */
-			tf->lbam = 0x0; /* cyl low */
-			tf->lbah = 0x0; /* cyl high */
-		}
-
-		tf->command = ATA_CMD_VERIFY;   /* READ VERIFY */
-	} else {
-		/* Some odd clown BIOSen issue spindown on power off (ACPI S4
-		 * or S5) causing some drives to spin up and down again.
-		 */
-		if ((qc->ap->flags & ATA_FLAG_NO_POWEROFF_SPINDOWN) &&
-		    system_state == SYSTEM_POWER_OFF)
-			goto skip;
-
-		if ((qc->ap->flags & ATA_FLAG_NO_HIBERNATE_SPINDOWN) &&
-		    system_entering_hibernation())
-			goto skip;
-
-		/* Issue ATA STANDBY IMMEDIATE command */
-		tf->command = ATA_CMD_STANDBYNOW1;
+	/* Ignore IMMED bit (cdb[1] & 0x1), violates sat-r05 */
+	if (!ata_dev_power_init_tf(qc->dev, &qc->tf, cdb[4] & 0x1)) {
+		ata_scsi_set_sense(qc->dev, scmd, ABORTED_COMMAND, 0, 0);
+		return 1;
 	}
 
 	/*
@@ -1275,12 +1244,8 @@ static unsigned int ata_scsi_start_stop_xlat(struct ata_queued_cmd *qc)
  invalid_fld:
 	ata_scsi_set_invalid_field(qc->dev, scmd, fp, bp);
 	return 1;
- skip:
-	scmd->result = SAM_STAT_GOOD;
-	return 1;
 }
 
-
 /**
  *	ata_scsi_flush_xlat - Translate SCSI SYNCHRONIZE CACHE command
  *	@qc: Storage for translated ATA taskfile
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 8fcc622fcb3d..95a19c4ef2a1 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -2316,7 +2316,7 @@ int ata_pci_sff_activate_host(struct ata_host *host,
 		for (i = 0; i < 2; i++) {
 			if (ata_port_is_dummy(host->ports[i]))
 				continue;
-			ata_port_desc(host->ports[i], "irq %d", pdev->irq);
+			ata_port_desc_misc(host->ports[i], pdev->irq);
 		}
 	} else if (legacy_mode) {
 		if (!ata_port_is_dummy(host->ports[0])) {
@@ -2326,8 +2326,8 @@ int ata_pci_sff_activate_host(struct ata_host *host,
 			if (rc)
 				goto out;
 
-			ata_port_desc(host->ports[0], "irq %d",
-				      ATA_PRIMARY_IRQ(pdev));
+			ata_port_desc_misc(host->ports[0],
+					   ATA_PRIMARY_IRQ(pdev));
 		}
 
 		if (!ata_port_is_dummy(host->ports[1])) {
@@ -2337,8 +2337,8 @@ int ata_pci_sff_activate_host(struct ata_host *host,
 			if (rc)
 				goto out;
 
-			ata_port_desc(host->ports[1], "irq %d",
-				      ATA_SECONDARY_IRQ(pdev));
+			ata_port_desc_misc(host->ports[1],
+					   ATA_SECONDARY_IRQ(pdev));
 		}
 	}
 
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 05ac80da8ebc..5c685bb1939e 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -62,6 +62,8 @@ extern int ata_dev_reread_id(struct ata_device *dev, unsigned int readid_flags);
 extern int ata_dev_revalidate(struct ata_device *dev, unsigned int new_class,
 			      unsigned int readid_flags);
 extern int ata_dev_configure(struct ata_device *dev);
+extern bool ata_dev_power_init_tf(struct ata_device *dev,
+				  struct ata_taskfile *tf, bool set_active);
 extern void ata_dev_power_set_standby(struct ata_device *dev);
 extern void ata_dev_power_set_active(struct ata_device *dev);
 extern int sata_down_spd_limit(struct ata_link *link, u32 spd_limit);
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index 422d42761a1d..38795508c2e9 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -212,7 +212,7 @@ static int cs5520_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 		if (rc)
 			return rc;
 
-		ata_port_desc(ap, "irq %d", irq[i]);
+		ata_port_desc_misc(ap, irq[i]);
 	}
 
 	return ata_host_register(host, &cs5520_sht);
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 45e48d653c60..e82786c63fbd 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -4123,10 +4123,13 @@ static int mv_platform_probe(struct platform_device *pdev)
 	hpriv->base -= SATAHC0_REG_BASE;
 
 	hpriv->clk = clk_get(&pdev->dev, NULL);
-	if (IS_ERR(hpriv->clk))
+	if (IS_ERR(hpriv->clk)) {
 		dev_notice(&pdev->dev, "cannot get optional clkdev\n");
-	else
-		clk_prepare_enable(hpriv->clk);
+	} else {
+		rc = clk_prepare_enable(hpriv->clk);
+		if (rc)
+			goto err;
+	}
 
 	for (port = 0; port < n_ports; port++) {
 		char port_number[16];
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 6effa13039f3..f4a49623ee3b 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3928,7 +3928,7 @@ static int sd_suspend_runtime(struct device *dev)
 static int sd_resume(struct device *dev, bool runtime)
 {
 	struct scsi_disk *sdkp = dev_get_drvdata(dev);
-	int ret = 0;
+	int ret;
 
 	if (!sdkp)	/* E.g.: runtime resume at the start of sd_probe() */
 		return 0;
@@ -3938,11 +3938,8 @@ static int sd_resume(struct device *dev, bool runtime)
 		return 0;
 	}
 
-	if (!sdkp->device->no_start_on_resume) {
-		sd_printk(KERN_NOTICE, sdkp, "Starting disk\n");
-		ret = sd_start_stop_device(sdkp, 1);
-	}
-
+	sd_printk(KERN_NOTICE, sdkp, "Starting disk\n");
+	ret = sd_start_stop_device(sdkp, 1);
 	if (!ret) {
 		opal_unlock_from_suspend(sdkp->opal_dev);
 		sdkp->suspended = false;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 2a7d2af0ed80..1dbb14daccfa 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -656,7 +656,7 @@ struct ata_cpr {
 
 struct ata_cpr_log {
 	u8			nr_cpr;
-	struct ata_cpr		cpr[];
+	struct ata_cpr		cpr[] __counted_by(nr_cpr);
 };
 
 struct ata_device {
@@ -1561,6 +1561,11 @@ void ata_port_desc(struct ata_port *ap, const char *fmt, ...);
 extern void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset,
 			       const char *name);
 #endif
+static inline void ata_port_desc_misc(struct ata_port *ap, int irq)
+{
+	ata_port_desc(ap, "irq %d", irq);
+	ata_port_desc(ap, "lpm-pol %d", ap->target_lpm_policy);
+}
 
 static inline bool ata_tag_internal(unsigned int tag)
 {
@@ -1881,23 +1886,21 @@ static inline unsigned long ata_deadline(unsigned long from_jiffies,
    change in future hardware and specs, secondly 0xFF means 'no DMA' but is
    > UDMA_0. Dyma ddreigiau */
 
-static inline int ata_using_mwdma(struct ata_device *adev)
+static inline bool ata_using_mwdma(struct ata_device *adev)
 {
-	if (adev->dma_mode >= XFER_MW_DMA_0 && adev->dma_mode <= XFER_MW_DMA_4)
-		return 1;
-	return 0;
+	return adev->dma_mode >= XFER_MW_DMA_0 &&
+		adev->dma_mode <= XFER_MW_DMA_4;
 }
 
-static inline int ata_using_udma(struct ata_device *adev)
+static inline bool ata_using_udma(struct ata_device *adev)
 {
-	if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7)
-		return 1;
-	return 0;
+	return adev->dma_mode >= XFER_UDMA_0 &&
+		adev->dma_mode <= XFER_UDMA_7;
 }
 
-static inline int ata_dma_enabled(struct ata_device *adev)
+static inline bool ata_dma_enabled(struct ata_device *adev)
 {
-	return (adev->dma_mode == 0xFF ? 0 : 1);
+	return adev->dma_mode != 0xFF;
 }
 
 /**************************************************************************
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 65e49fae8da7..10480eb582b2 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -213,7 +213,6 @@ struct scsi_device {
 	unsigned use_192_bytes_for_3f:1; /* ask for 192 bytes from page 0x3f */
 	unsigned no_start_on_add:1;	/* do not issue start on add */
 	unsigned allow_restart:1; /* issue START_UNIT in error handler */
-	unsigned no_start_on_resume:1; /* Do not issue START_STOP_UNIT on resume */
 	unsigned start_stop_pwr_cond:1;	/* Set power cond. in START_STOP_UNIT */
 	unsigned no_uld_attach:1; /* disable connecting to upper level drivers */
 	unsigned select_no_atn:1;