Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git

17 files changed, 223 insertions, 171 deletions

diff --git a/Documentation/firmware-guide/acpi/osi.rst b/Documentation/firmware-guide/acpi/osi.rst
index 29e9ef79ebc0fd..05869c0045d747 100644
--- a/Documentation/firmware-guide/acpi/osi.rst
+++ b/Documentation/firmware-guide/acpi/osi.rst
@@ -74,7 +74,7 @@ The ACPI BIOS flow would include an evaluation of _OS, and the AML
 interpreter in the kernel would return to it a string identifying the OS:
 
 Windows 98, SE: "Microsoft Windows"
-Windows ME: "Microsoft WindowsME:Millenium Edition"
+Windows ME: "Microsoft WindowsME:Millennium Edition"
 Windows NT: "Microsoft Windows NT"
 
 The idea was on a platform tasked with running multiple OS's,
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 14bcd59bcdee26..5b6d1a95776f08 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -62,6 +62,7 @@ int acpi_fix_pin2_polarity __initdata;
 
 #ifdef CONFIG_X86_LOCAL_APIC
 static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
+static bool acpi_support_online_capable;
 #endif
 
 #ifdef CONFIG_X86_IO_APIC
@@ -138,6 +139,8 @@ static int __init acpi_parse_madt(struct acpi_table_header *table)
 
 		pr_debug("Local APIC address 0x%08x\n", madt->address);
 	}
+	if (madt->header.revision >= 5)
+		acpi_support_online_capable = true;
 
 	default_acpi_madt_oem_check(madt->header.oem_id,
 				    madt->header.oem_table_id);
@@ -239,6 +242,12 @@ acpi_parse_lapic(union acpi_subtable_headers * header, const unsigned long end)
 	if (processor->id == 0xff)
 		return 0;
 
+	/* don't register processors that can not be onlined */
+	if (acpi_support_online_capable &&
+	    !(processor->lapic_flags & ACPI_MADT_ENABLED) &&
+	    !(processor->lapic_flags & ACPI_MADT_ONLINE_CAPABLE))
+		return 0;
+
 	/*
 	 * We need to register disabled CPU as well to permit
 	 * counting disabled CPUs. This allows us to size
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 1da360c51d6625..cdbdf68bd98f5c 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -71,7 +71,7 @@ config ACPI_DEBUGGER
 if ACPI_DEBUGGER
 
 config ACPI_DEBUGGER_USER
-	tristate "Userspace debugger accessiblity"
+	tristate "Userspace debugger accessibility"
 	depends on DEBUG_FS
 	help
 	  Export /sys/kernel/debug/acpi/acpidbg for userspace utilities
diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
index 8f2dc176bb412b..ffdcfcd4a10db1 100644
--- a/drivers/acpi/acpi_pnp.c
+++ b/drivers/acpi/acpi_pnp.c
@@ -156,8 +156,6 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = {
 	{"BRI0A49"},		/* Boca Complete Ofc Communicator 14.4 Data-FAX */
 	{"BRI1400"},		/* Boca Research 33,600 ACF Modem */
 	{"BRI3400"},		/* Boca 33.6 Kbps Internal FD34FSVD */
-	{"BRI0A49"},		/* Boca 33.6 Kbps Internal FD34FSVD */
-	{"BDP3336"},		/* Best Data Products Inc. Smart One 336F PnP Modem */
 	{"CPI4050"},		/* Computer Peripherals Inc. EuroViVa CommCenter-33.6 SP PnP */
 	{"CTL3001"},		/* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
 	{"CTL3011"},		/* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 7a33a6d985f890..17ec6e57c4b766 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -17,6 +17,8 @@
 #include <linux/rwsem.h>
 #include <linux/acpi.h>
 #include <linux/dma-mapping.h>
+#include <linux/pci.h>
+#include <linux/pci-acpi.h>
 #include <linux/platform_device.h>
 
 #include "internal.h"
@@ -287,12 +289,13 @@ EXPORT_SYMBOL_GPL(acpi_unbind_one);
 
 void acpi_device_notify(struct device *dev)
 {
-	struct acpi_bus_type *type = acpi_get_bus_type(dev);
 	struct acpi_device *adev;
 	int ret;
 
 	ret = acpi_bind_one(dev, NULL);
 	if (ret) {
+		struct acpi_bus_type *type = acpi_get_bus_type(dev);
+
 		if (!type)
 			goto err;
 
@@ -304,17 +307,26 @@ void acpi_device_notify(struct device *dev)
 		ret = acpi_bind_one(dev, adev);
 		if (ret)
 			goto err;
-	}
-	adev = ACPI_COMPANION(dev);
 
-	if (dev_is_platform(dev))
-		acpi_configure_pmsi_domain(dev);
+		if (type->setup) {
+			type->setup(dev);
+			goto done;
+		}
+	} else {
+		adev = ACPI_COMPANION(dev);
+
+		if (dev_is_pci(dev)) {
+			pci_acpi_setup(dev, adev);
+			goto done;
+		} else if (dev_is_platform(dev)) {
+			acpi_configure_pmsi_domain(dev);
+		}
+	}
 
-	if (type && type->setup)
-		type->setup(dev);
-	else if (adev->handler && adev->handler->bind)
+	if (adev->handler && adev->handler->bind)
 		adev->handler->bind(dev);
 
+done:
 	acpi_handle_debug(ACPI_HANDLE(dev), "Bound to device %s\n",
 			  dev_name(dev));
 
@@ -327,14 +339,12 @@ err:
 void acpi_device_notify_remove(struct device *dev)
 {
 	struct acpi_device *adev = ACPI_COMPANION(dev);
-	struct acpi_bus_type *type;
 
 	if (!adev)
 		return;
 
-	type = acpi_get_bus_type(dev);
-	if (type && type->cleanup)
-		type->cleanup(dev);
+	if (dev_is_pci(dev))
+		pci_acpi_cleanup(dev, adev);
 	else if (adev->handler && adev->handler->unbind)
 		adev->handler->unbind(dev);
 
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f37fba9e5ba0b2..76ef1bcc884809 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -789,7 +789,8 @@ static int acpi_processor_setup_cstates(struct acpi_processor *pr)
 		state->enter = acpi_idle_enter;
 
 		state->flags = 0;
-		if (cx->type == ACPI_STATE_C1 || cx->type == ACPI_STATE_C2) {
+		if (cx->type == ACPI_STATE_C1 || cx->type == ACPI_STATE_C2 ||
+		    cx->type == ACPI_STATE_C3) {
 			state->enter_dead = acpi_idle_play_dead;
 			drv->safe_state_index = count;
 		}
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index ee78a210c60686..7bf38652e6aca0 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -16,6 +16,7 @@
 #include <linux/ioport.h>
 #include <linux/slab.h>
 #include <linux/irq.h>
+#include <linux/dmi.h>
 
 #ifdef CONFIG_X86
 #define valid_IRQ(i) (((i) != 0) && ((i) != 2))
@@ -380,9 +381,51 @@ unsigned int acpi_dev_get_irq_type(int triggering, int polarity)
 }
 EXPORT_SYMBOL_GPL(acpi_dev_get_irq_type);
 
+static const struct dmi_system_id medion_laptop[] = {
+	{
+		.ident = "MEDION P15651",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
+			DMI_MATCH(DMI_BOARD_NAME, "M15T"),
+		},
+	},
+	{ }
+};
+
+struct irq_override_cmp {
+	const struct dmi_system_id *system;
+	unsigned char irq;
+	unsigned char triggering;
+	unsigned char polarity;
+	unsigned char shareable;
+};
+
+static const struct irq_override_cmp skip_override_table[] = {
+	{ medion_laptop, 1, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0 },
+};
+
+static bool acpi_dev_irq_override(u32 gsi, u8 triggering, u8 polarity,
+				  u8 shareable)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(skip_override_table); i++) {
+		const struct irq_override_cmp *entry = &skip_override_table[i];
+
+		if (dmi_check_system(entry->system) &&
+		    entry->irq == gsi &&
+		    entry->triggering == triggering &&
+		    entry->polarity == polarity &&
+		    entry->shareable == shareable)
+			return false;
+	}
+
+	return true;
+}
+
 static void acpi_dev_get_irqresource(struct resource *res, u32 gsi,
 				     u8 triggering, u8 polarity, u8 shareable,
-				     bool legacy)
+				     bool check_override)
 {
 	int irq, p, t;
 
@@ -401,7 +444,9 @@ static void acpi_dev_get_irqresource(struct resource *res, u32 gsi,
 	 * using extended IRQ descriptors we take the IRQ configuration
 	 * from _CRS directly.
 	 */
-	if (legacy && !acpi_get_override_irq(gsi, &t, &p)) {
+	if (check_override &&
+	    acpi_dev_irq_override(gsi, triggering, polarity, shareable) &&
+	    !acpi_get_override_irq(gsi, &t, &p)) {
 		u8 trig = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
 		u8 pol = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
 
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index e6c543b5ee1dd6..0b66e25c0e2d56 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -89,6 +89,12 @@ static struct cpuidle_state *cpuidle_state_table __initdata;
 static unsigned int mwait_substates __initdata;
 
 /*
+ * Enable interrupts before entering the C-state. On some platforms and for
+ * some C-states, this may measurably decrease interrupt latency.
+ */
+#define CPUIDLE_FLAG_IRQ_ENABLE		BIT(14)
+
+/*
  * Enable this state by default even if the ACPI _CST does not list it.
  */
 #define CPUIDLE_FLAG_ALWAYS_ENABLE	BIT(15)
@@ -127,6 +133,9 @@ static __cpuidle int intel_idle(struct cpuidle_device *dev,
 	unsigned long eax = flg2MWAIT(state->flags);
 	unsigned long ecx = 1; /* break on interrupt flag */
 
+	if (state->flags & CPUIDLE_FLAG_IRQ_ENABLE)
+		local_irq_enable();
+
 	mwait_idle_with_hints(eax, ecx);
 
 	return index;
@@ -698,7 +707,7 @@ static struct cpuidle_state skx_cstates[] __initdata = {
 	{
 		.name = "C1",
 		.desc = "MWAIT 0x00",
-		.flags = MWAIT2flg(0x00),
+		.flags = MWAIT2flg(0x00) | CPUIDLE_FLAG_IRQ_ENABLE,
 		.exit_latency = 2,
 		.target_residency = 2,
 		.enter = &intel_idle,
@@ -727,7 +736,7 @@ static struct cpuidle_state icx_cstates[] __initdata = {
 	{
 		.name = "C1",
 		.desc = "MWAIT 0x00",
-		.flags = MWAIT2flg(0x00),
+		.flags = MWAIT2flg(0x00) | CPUIDLE_FLAG_IRQ_ENABLE,
 		.exit_latency = 1,
 		.target_residency = 1,
 		.enter = &intel_idle,
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 0f40943a9a18a6..9663b13944adaa 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -906,10 +906,13 @@ acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
  *	choose highest power _SxD or any lower power
  */
 
-static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev)
+pci_power_t acpi_pci_choose_state(struct pci_dev *pdev)
 {
 	int acpi_state, d_max;
 
+	if (acpi_pci_disabled)
+		return PCI_POWER_ERROR;
+
 	if (pdev->no_d3cold)
 		d_max = ACPI_STATE_D3_HOT;
 	else
@@ -965,22 +968,20 @@ int pci_dev_acpi_reset(struct pci_dev *dev, bool probe)
 	return 0;
 }
 
-static bool acpi_pci_power_manageable(struct pci_dev *dev)
+bool acpi_pci_power_manageable(struct pci_dev *dev)
 {
 	struct acpi_device *adev = ACPI_COMPANION(&dev->dev);
 
-	if (!adev)
-		return false;
-	return acpi_device_power_manageable(adev);
+	return adev && acpi_device_power_manageable(adev);
 }
 
-static bool acpi_pci_bridge_d3(struct pci_dev *dev)
+bool acpi_pci_bridge_d3(struct pci_dev *dev)
 {
 	const union acpi_object *obj;
 	struct acpi_device *adev;
 	struct pci_dev *rpdev;
 
-	if (!dev->is_hotplug_bridge)
+	if (acpi_pci_disabled || !dev->is_hotplug_bridge)
 		return false;
 
 	/* Assume D3 support if the bridge is power-manageable by ACPI. */
@@ -1008,7 +1009,7 @@ static bool acpi_pci_bridge_d3(struct pci_dev *dev)
 	return obj->integer.value == 1;
 }
 
-static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
+int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 {
 	struct acpi_device *adev = ACPI_COMPANION(&dev->dev);
 	static const u8 state_conv[] = {
@@ -1046,7 +1047,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 	return error;
 }
 
-static pci_power_t acpi_pci_get_power_state(struct pci_dev *dev)
+pci_power_t acpi_pci_get_power_state(struct pci_dev *dev)
 {
 	struct acpi_device *adev = ACPI_COMPANION(&dev->dev);
 	static const pci_power_t state_conv[] = {
@@ -1068,7 +1069,7 @@ static pci_power_t acpi_pci_get_power_state(struct pci_dev *dev)
 	return state_conv[state];
 }
 
-static void acpi_pci_refresh_power_state(struct pci_dev *dev)
+void acpi_pci_refresh_power_state(struct pci_dev *dev)
 {
 	struct acpi_device *adev = ACPI_COMPANION(&dev->dev);
 
@@ -1093,17 +1094,23 @@ static int acpi_pci_propagate_wakeup(struct pci_bus *bus, bool enable)
 	return 0;
 }
 
-static int acpi_pci_wakeup(struct pci_dev *dev, bool enable)
+int acpi_pci_wakeup(struct pci_dev *dev, bool enable)
 {
+	if (acpi_pci_disabled)
+		return 0;
+
 	if (acpi_pm_device_can_wakeup(&dev->dev))
 		return acpi_pm_set_device_wakeup(&dev->dev, enable);
 
 	return acpi_pci_propagate_wakeup(dev->bus, enable);
 }
 
-static bool acpi_pci_need_resume(struct pci_dev *dev)
+bool acpi_pci_need_resume(struct pci_dev *dev)
 {
-	struct acpi_device *adev = ACPI_COMPANION(&dev->dev);
+	struct acpi_device *adev;
+
+	if (acpi_pci_disabled)
+		return false;
 
 	/*
 	 * In some cases (eg. Samsung 305V4A) leaving a bridge in suspend over
@@ -1115,6 +1122,7 @@ static bool acpi_pci_need_resume(struct pci_dev *dev)
 	if (pci_is_bridge(dev) && acpi_target_system_state() != ACPI_STATE_S0)
 		return true;
 
+	adev = ACPI_COMPANION(&dev->dev);
 	if (!adev || !acpi_device_power_manageable(adev))
 		return false;
 
@@ -1128,17 +1136,6 @@ static bool acpi_pci_need_resume(struct pci_dev *dev)
 	return !!adev->power.flags.dsw_present;
 }
 
-static const struct pci_platform_pm_ops acpi_pci_platform_pm = {
-	.bridge_d3 = acpi_pci_bridge_d3,
-	.is_manageable = acpi_pci_power_manageable,
-	.set_state = acpi_pci_set_power_state,
-	.get_state = acpi_pci_get_power_state,
-	.refresh_state = acpi_pci_refresh_power_state,
-	.choose_state = acpi_pci_choose_state,
-	.set_wakeup = acpi_pci_wakeup,
-	.need_resume = acpi_pci_need_resume,
-};
-
 void acpi_pci_add_bus(struct pci_bus *bus)
 {
 	union acpi_object *obj;
@@ -1353,13 +1350,9 @@ static void pci_acpi_set_external_facing(struct pci_dev *dev)
 		dev->external_facing = 1;
 }
 
-static void pci_acpi_setup(struct device *dev)
+void pci_acpi_setup(struct device *dev, struct acpi_device *adev)
 {
 	struct pci_dev *pci_dev = to_pci_dev(dev);
-	struct acpi_device *adev = ACPI_COMPANION(dev);
-
-	if (!adev)
-		return;
 
 	pci_acpi_optimize_delay(pci_dev, adev->handle);
 	pci_acpi_set_external_facing(pci_dev);
@@ -1383,14 +1376,10 @@ static void pci_acpi_setup(struct device *dev)
 	acpi_device_power_add_dependent(adev, dev);
 }
 
-static void pci_acpi_cleanup(struct device *dev)
+void pci_acpi_cleanup(struct device *dev, struct acpi_device *adev)
 {
-	struct acpi_device *adev = ACPI_COMPANION(dev);
 	struct pci_dev *pci_dev = to_pci_dev(dev);
 
-	if (!adev)
-		return;
-
 	pci_acpi_remove_edr_notifier(pci_dev);
 	pci_acpi_remove_pm_notifier(adev);
 	if (adev->wakeup.flags.valid) {
@@ -1402,20 +1391,6 @@ static void pci_acpi_cleanup(struct device *dev)
 	}
 }
 
-static bool pci_acpi_bus_match(struct device *dev)
-{
-	return dev_is_pci(dev);
-}
-
-static struct acpi_bus_type acpi_pci_bus = {
-	.name = "PCI",
-	.match = pci_acpi_bus_match,
-	.find_companion = acpi_pci_find_companion,
-	.setup = pci_acpi_setup,
-	.cleanup = pci_acpi_cleanup,
-};
-
-
 static struct fwnode_handle *(*pci_msi_get_fwnode_cb)(struct device *dev);
 
 /**
@@ -1457,8 +1432,6 @@ struct irq_domain *pci_host_bridge_acpi_msi_domain(struct pci_bus *bus)
 
 static int __init acpi_pci_init(void)
 {
-	int ret;
-
 	if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_MSI) {
 		pr_info("ACPI FADT declares the system doesn't support MSI, so disable it\n");
 		pci_no_msi();
@@ -1469,11 +1442,9 @@ static int __init acpi_pci_init(void)
 		pcie_no_aspm();
 	}
 
-	ret = register_acpi_bus_type(&acpi_pci_bus);
-	if (ret)
+	if (acpi_pci_disabled)
 		return 0;
 
-	pci_set_platform_pm(&acpi_pci_platform_pm);
 	acpi_pci_slot_init();
 	acpiphp_init();
 
diff --git a/drivers/pci/pci-mid.c b/drivers/pci/pci-mid.c
index aafd58da3a896c..fbfd7812712381 100644
--- a/drivers/pci/pci-mid.c
+++ b/drivers/pci/pci-mid.c
@@ -16,45 +16,23 @@
 
 #include "pci.h"
 
-static bool mid_pci_power_manageable(struct pci_dev *dev)
+static bool pci_mid_pm_enabled __read_mostly;
+
+bool pci_use_mid_pm(void)
 {
-	return true;
+	return pci_mid_pm_enabled;
 }
 
-static int mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state)
+int mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state)
 {
 	return intel_mid_pci_set_power_state(pdev, state);
 }
 
-static pci_power_t mid_pci_get_power_state(struct pci_dev *pdev)
+pci_power_t mid_pci_get_power_state(struct pci_dev *pdev)
 {
 	return intel_mid_pci_get_power_state(pdev);
 }
 
-static pci_power_t mid_pci_choose_state(struct pci_dev *pdev)
-{
-	return PCI_D3hot;
-}
-
-static int mid_pci_wakeup(struct pci_dev *dev, bool enable)
-{
-	return 0;
-}
-
-static bool mid_pci_need_resume(struct pci_dev *dev)
-{
-	return false;
-}
-
-static const struct pci_platform_pm_ops mid_pci_platform_pm = {
-	.is_manageable	= mid_pci_power_manageable,
-	.set_state	= mid_pci_set_power_state,
-	.get_state	= mid_pci_get_power_state,
-	.choose_state	= mid_pci_choose_state,
-	.set_wakeup	= mid_pci_wakeup,
-	.need_resume	= mid_pci_need_resume,
-};
-
 /*
  * This table should be in sync with the one in
  * arch/x86/platform/intel-mid/pwr.c.
@@ -71,7 +49,8 @@ static int __init mid_pci_init(void)
 
 	id = x86_match_cpu(lpss_cpu_ids);
 	if (id)
-		pci_set_platform_pm(&mid_pci_platform_pm);
+		pci_mid_pm_enabled = true;
+
 	return 0;
 }
 arch_initcall(mid_pci_init);
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e55d944ff30f17..fdf731e55a9824 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -972,61 +972,67 @@ static void pci_restore_bars(struct pci_dev *dev)
 		pci_update_resource(dev, i);
 }
 
-static const struct pci_platform_pm_ops *pci_platform_pm;
-
-int pci_set_platform_pm(const struct pci_platform_pm_ops *ops)
-{
-	if (!ops->is_manageable || !ops->set_state  || !ops->get_state ||
-	    !ops->choose_state  || !ops->set_wakeup || !ops->need_resume)
-		return -EINVAL;
-	pci_platform_pm = ops;
-	return 0;
-}
-
 static inline bool platform_pci_power_manageable(struct pci_dev *dev)
 {
-	return pci_platform_pm ? pci_platform_pm->is_manageable(dev) : false;
+	if (pci_use_mid_pm())
+		return true;
+
+	return acpi_pci_power_manageable(dev);
 }
 
 static inline int platform_pci_set_power_state(struct pci_dev *dev,
 					       pci_power_t t)
 {
-	return pci_platform_pm ? pci_platform_pm->set_state(dev, t) : -ENOSYS;
+	if (pci_use_mid_pm())
+		return mid_pci_set_power_state(dev, t);
+
+	return acpi_pci_set_power_state(dev, t);
 }
 
 static inline pci_power_t platform_pci_get_power_state(struct pci_dev *dev)
 {
-	return pci_platform_pm ? pci_platform_pm->get_state(dev) : PCI_UNKNOWN;
+	if (pci_use_mid_pm())
+		return mid_pci_get_power_state(dev);
+
+	return acpi_pci_get_power_state(dev);
 }
 
 static inline void platform_pci_refresh_power_state(struct pci_dev *dev)
 {
-	if (pci_platform_pm && pci_platform_pm->refresh_state)
-		pci_platform_pm->refresh_state(dev);
+	if (!pci_use_mid_pm())
+		acpi_pci_refresh_power_state(dev);
 }
 
 static inline pci_power_t platform_pci_choose_state(struct pci_dev *dev)
 {
-	return pci_platform_pm ?
-			pci_platform_pm->choose_state(dev) : PCI_POWER_ERROR;
+	if (pci_use_mid_pm())
+		return PCI_POWER_ERROR;
+
+	return acpi_pci_choose_state(dev);
 }
 
 static inline int platform_pci_set_wakeup(struct pci_dev *dev, bool enable)
 {
-	return pci_platform_pm ?
-			pci_platform_pm->set_wakeup(dev, enable) : -ENODEV;
+	if (pci_use_mid_pm())
+		return PCI_POWER_ERROR;
+
+	return acpi_pci_wakeup(dev, enable);
 }
 
 static inline bool platform_pci_need_resume(struct pci_dev *dev)
 {
-	return pci_platform_pm ? pci_platform_pm->need_resume(dev) : false;
+	if (pci_use_mid_pm())
+		return false;
+
+	return acpi_pci_need_resume(dev);
 }
 
 static inline bool platform_pci_bridge_d3(struct pci_dev *dev)
 {
-	if (pci_platform_pm && pci_platform_pm->bridge_d3)
-		return pci_platform_pm->bridge_d3(dev);
-	return false;
+	if (pci_use_mid_pm())
+		return false;
+
+	return acpi_pci_bridge_d3(dev);
 }
 
 /**
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 1cce56c2aea012..bd39098c57dad1 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -63,45 +63,6 @@ struct pci_cap_saved_state *pci_find_saved_ext_cap(struct pci_dev *dev,
 #define PCI_PM_D3HOT_WAIT       10	/* msec */
 #define PCI_PM_D3COLD_WAIT      100	/* msec */
 
-/**
- * struct pci_platform_pm_ops - Firmware PM callbacks
- *
- * @bridge_d3: Does the bridge allow entering into D3
- *
- * @is_manageable: returns 'true' if given device is power manageable by the
- *		   platform firmware
- *
- * @set_state: invokes the platform firmware to set the device's power state
- *
- * @get_state: queries the platform firmware for a device's current power state
- *
- * @refresh_state: asks the platform to refresh the device's power state data
- *
- * @choose_state: returns PCI power state of given device preferred by the
- *		  platform; to be used during system-wide transitions from a
- *		  sleeping state to the working state and vice versa
- *
- * @set_wakeup: enables/disables wakeup capability for the device
- *
- * @need_resume: returns 'true' if the given device (which is currently
- *		 suspended) needs to be resumed to be configured for system
- *		 wakeup.
- *
- * If given platform is generally capable of power managing PCI devices, all of
- * these callbacks are mandatory.
- */
-struct pci_platform_pm_ops {
-	bool (*bridge_d3)(struct pci_dev *dev);
-	bool (*is_manageable)(struct pci_dev *dev);
-	int (*set_state)(struct pci_dev *dev, pci_power_t state);
-	pci_power_t (*get_state)(struct pci_dev *dev);
-	void (*refresh_state)(struct pci_dev *dev);
-	pci_power_t (*choose_state)(struct pci_dev *dev);
-	int (*set_wakeup)(struct pci_dev *dev, bool enable);
-	bool (*need_resume)(struct pci_dev *dev);
-};
-
-int pci_set_platform_pm(const struct pci_platform_pm_ops *ops);
 void pci_update_current_state(struct pci_dev *dev, pci_power_t state);
 void pci_refresh_power_state(struct pci_dev *dev);
 int pci_power_up(struct pci_dev *dev);
@@ -725,17 +686,53 @@ int pci_acpi_program_hp_params(struct pci_dev *dev);
 extern const struct attribute_group pci_dev_acpi_attr_group;
 void pci_set_acpi_fwnode(struct pci_dev *dev);
 int pci_dev_acpi_reset(struct pci_dev *dev, bool probe);
+bool acpi_pci_power_manageable(struct pci_dev *dev);
+bool acpi_pci_bridge_d3(struct pci_dev *dev);
+int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state);
+pci_power_t acpi_pci_get_power_state(struct pci_dev *dev);
+void acpi_pci_refresh_power_state(struct pci_dev *dev);
+int acpi_pci_wakeup(struct pci_dev *dev, bool enable);
+bool acpi_pci_need_resume(struct pci_dev *dev);
+pci_power_t acpi_pci_choose_state(struct pci_dev *pdev);
 #else
 static inline int pci_dev_acpi_reset(struct pci_dev *dev, bool probe)
 {
 	return -ENOTTY;
 }
-
 static inline void pci_set_acpi_fwnode(struct pci_dev *dev) {}
 static inline int pci_acpi_program_hp_params(struct pci_dev *dev)
 {
 	return -ENODEV;
 }
+static inline bool acpi_pci_power_manageable(struct pci_dev *dev)
+{
+	return false;
+}
+static inline bool acpi_pci_bridge_d3(struct pci_dev *dev)
+{
+	return false;
+}
+static inline int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
+{
+	return -ENODEV;
+}
+static inline pci_power_t acpi_pci_get_power_state(struct pci_dev *dev)
+{
+	return PCI_UNKNOWN;
+}
+static inline void acpi_pci_refresh_power_state(struct pci_dev *dev) {}
+static inline int acpi_pci_wakeup(struct pci_dev *dev, bool enable)
+{
+	return -ENODEV;
+}
+static inline bool acpi_pci_need_resume(struct pci_dev *dev)
+{
+	return false;
+}
+static inline pci_power_t acpi_pci_choose_state(struct pci_dev *pdev)
+{
+	return PCI_POWER_ERROR;
+}
 #endif
 
 #ifdef CONFIG_PCIEASPM
@@ -744,4 +741,23 @@ extern const struct attribute_group aspm_ctrl_attr_group;
 
 extern const struct attribute_group pci_dev_reset_method_attr_group;
 
+#ifdef CONFIG_X86_INTEL_MID
+bool pci_use_mid_pm(void);
+int mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state);
+pci_power_t mid_pci_get_power_state(struct pci_dev *pdev);
+#else
+static inline bool pci_use_mid_pm(void)
+{
+	return false;
+}
+static inline int mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state)
+{
+	return -ENODEV;
+}
+static inline pci_power_t mid_pci_get_power_state(struct pci_dev *pdev)
+{
+	return PCI_UNKNOWN;
+}
+#endif
+
 #endif /* DRIVERS_PCI_H */
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 13d93371790ec9..53b6e9f9de7b42 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -570,7 +570,6 @@ struct acpi_bus_type {
 	bool (*match)(struct device *dev);
 	struct acpi_device * (*find_companion)(struct device *);
 	void (*setup)(struct device *);
-	void (*cleanup)(struct device *);
 };
 int register_acpi_bus_type(struct acpi_bus_type *);
 int unregister_acpi_bus_type(struct acpi_bus_type *);
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index a47b32a5cbdeb1..074449cb11a174 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -978,6 +978,7 @@ struct acpi_madt_multiproc_wakeup_mailbox {
 /* MADT Local APIC flags */
 
 #define ACPI_MADT_ENABLED           (1)	/* 00: Processor is usable if set */
+#define ACPI_MADT_ONLINE_CAPABLE    (2)	/* 01: System HW supports enabling processor at runtime */
 
 /* MADT MPS INTI flags (inti_flags) */
 
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h
index f16de399d2de20..078225b514d484 100644
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -84,6 +84,14 @@ extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
 void acpi_pci_add_bus(struct pci_bus *bus);
 void acpi_pci_remove_bus(struct pci_bus *bus);
 
+#ifdef CONFIG_PCI
+void pci_acpi_setup(struct device *dev, struct acpi_device *adev);
+void pci_acpi_cleanup(struct device *dev, struct acpi_device *adev);
+#else
+static inline void pci_acpi_setup(struct device *dev, struct acpi_device *adev) {}
+static inline void pci_acpi_cleanup(struct device *dev, struct acpi_device *adev) {}
+#endif
+
 #ifdef	CONFIG_ACPI_PCI_SLOT
 void acpi_pci_slot_init(void);
 void acpi_pci_slot_enumerate(struct pci_bus *bus);
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index eb75f394a05901..02e306ad8db8f4 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -171,8 +171,7 @@ static bool valid_state(suspend_state_t state)
 
 void __init pm_states_init(void)
 {
-	/* "mem" and "freeze" are always present in /sys/power/state. */
-	pm_states[PM_SUSPEND_MEM] = pm_labels[PM_SUSPEND_MEM];
+	/* "freeze" is always present in /sys/power/state. */
 	pm_states[PM_SUSPEND_TO_IDLE] = pm_labels[PM_SUSPEND_TO_IDLE];
 	/*
 	 * Suspend-to-idle should be supported even without any suspend_ops,
@@ -214,6 +213,7 @@ void suspend_set_ops(const struct platform_suspend_ops *ops)
 	}
 	if (valid_state(PM_SUSPEND_MEM)) {
 		mem_sleep_states[PM_SUSPEND_MEM] = mem_sleep_labels[PM_SUSPEND_MEM];
+		pm_states[PM_SUSPEND_MEM] = pm_labels[PM_SUSPEND_MEM];
 		if (mem_sleep_default >= PM_SUSPEND_MEM)
 			mem_sleep_current = PM_SUSPEND_MEM;
 	}
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 3cb89baebc796c..9ec4189555566e 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -306,7 +306,7 @@ static blk_status_t hib_wait_io(struct hib_bio_batch *hb)
 	 * a plug will flush the plug list before sleeping.
 	 */
 	wait_event(hb->wait, atomic_read(&hb->count) == 0);
-	return blk_status_to_errno(hb->error);
+	return hb->error;
 }
 
 /*