Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/g…

…it/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (32 commits)
  ACPI: thermal: show temperature in millidegree Celsius
  thermal: fix generic thermal I/F for hwmon
  acer-wmi: build depends on i8042
  documentation:  Move power-related files to Documentation/power/
  ACPI: buffer array too short in drivers/acpi/system.c
  acer-wmi: Add DMI quirk for mail LED support on Acer Aspire 3610/ 5610
  acer-wmi: Fix DSDT path in documentation
  acer-wmi: Make device detection error messages more descriptive
  laptops: move laptop-mode.txt to Documentation/laptops/
  ACPICA: Warn if packages with invalid references are evaluated
  ACPI: add _PRT quirks to work around broken firmware
  Hibernation: Fix mark_nosave_pages()
  ACPI: Ignore _BQC object when registering backlight device
  ACPI: WMI: Clean up handling of spec violating data blocks
  acer-wmi: Don't warn if mail LED cannot be detected
  acer-wmi: Rename mail LED correctly & remove hardcoded colour
  ACPI: use ACPI_DEBUG_PRINT instead of printk in acpi_processor_hotplug_notify()
  ACPI: button: make real parent for input devices in device tree
  toshiba_acpi: Enable autoloading
  ACPI: EC: Handle IRQ storm on Acer laptops
  ...

Documentation/00-INDEX

@@ -225,8 +225,6 @@ kprobes.txt
 	- documents the kernel probes debugging feature.
 kref.txt
 	- docs on adding reference counters (krefs) to kernel objects.
-laptop-mode.txt
-	- how to conserve battery power using laptop-mode.
 laptops/
 	- directory with laptop related info and laptop driver documentation.
 ldm.txt
@@ -301,12 +299,8 @@ pcmcia/
 	- info on the Linux PCMCIA driver.
 pi-futex.txt
 	- documentation on lightweight PI-futexes.
-pm.txt
-	- info on Linux power management support.
 pnp.txt
 	- Linux Plug and Play documentation.
-power_supply_class.txt
-	- Tells userspace about battery, UPS, AC or DC power supply properties
 power/
 	- directory with info on Linux PCI power management.
 powerpc/

Documentation/filesystems/proc.txt

@@ -1506,13 +1506,13 @@ laptop_mode
 -----------
 
 laptop_mode is a knob that controls "laptop mode". All the things that are
-controlled by this knob are discussed in Documentation/laptop-mode.txt.
+controlled by this knob are discussed in Documentation/laptops/laptop-mode.txt.
 
 block_dump
 ----------
 
 block_dump enables block I/O debugging when set to a nonzero value. More
-information on block I/O debugging is in Documentation/laptop-mode.txt.
+information on block I/O debugging is in Documentation/laptops/laptop-mode.txt.
 
 swap_token_timeout
 ------------------

Documentation/kernel-parameters.txt

@@ -138,7 +138,7 @@ and is between 256 and 4096 characters. It is defined in the file
 			strict -- Be less tolerant of platforms that are not
 				strictly ACPI specification compliant.
 
-			See also Documentation/pm.txt, pci=noacpi
+			See also Documentation/power/pm.txt, pci=noacpi
 
 	acpi_apic_instance=	[ACPI, IOAPIC]
 			Format: <int>

Documentation/laptops/00-INDEX

@@ -2,6 +2,8 @@
 	- This file
 acer-wmi.txt
 	- information on the Acer Laptop WMI Extras driver.
+laptop-mode.txt
+	- how to conserve battery power using laptop-mode.
 sony-laptop.txt
 	- Sony Notebook Control Driver (SNC) Readme.
 sonypi.txt

Documentation/laptops/acer-wmi.txt

@@ -48,7 +48,7 @@ DSDT.
 
 To send me the DSDT, as root/sudo:
 
-cat /sys/firmware/acpi/DSDT > dsdt
+cat /sys/firmware/acpi/tables/DSDT > dsdt
 
 And send me the resulting 'dsdt' file.
 
@@ -169,7 +169,7 @@ can be added to acer-wmi.
 
 The LED is exposed through the LED subsystem, and can be found in:
 
-/sys/devices/platform/acer-wmi/leds/acer-mail:green/
+/sys/devices/platform/acer-wmi/leds/acer-wmi::mail/
 
 The mail LED is autodetected, so if you don't have one, the LED device won't
 be registered.

Documentation/power/00-INDEX

@@ -14,6 +14,12 @@ notifiers.txt
 	- Registering suspend notifiers in device drivers
 pci.txt
 	- How the PCI Subsystem Does Power Management
+pm.txt
+	- info on Linux power management support.
+pm_qos_interface.txt
+	- info on Linux PM Quality of Service interface
+power_supply_class.txt
+	- Tells userspace about battery, UPS, AC or DC power supply properties
 s2ram.txt
 	- How to get suspend to ram working (and debug it when it isn't)
 states.txt

Documentation/pm.txt → Documentation/power/pm.txt

@@ -108,7 +108,7 @@ void pm_unregister_all(pm_callback cback);
  *          EINVAL if the request is not supported
  *          EBUSY if the device is now busy and cannot handle the request
  *          ENOMEM if the device was unable to handle the request due to memory
- *          
+ *
  * Details: The device request callback will be called before the
  *          device/system enters a suspend state (ACPI D1-D3) or
  *          or after the device/system resumes from suspend (ACPI D0).

Documentation/thermal/sysfs-api.txt

@@ -143,10 +143,10 @@ type				Strings which represent the thermal zone type.
 				This is given by thermal zone driver as part of registration.
 				Eg: "ACPI thermal zone" indicates it's a ACPI thermal device
 				RO
-				Optional
+				Required
 
 temp				Current temperature as reported by thermal zone (sensor)
-				Unit: degree Celsius
+				Unit: millidegree Celsius
 				RO
 				Required
 
@@ -163,7 +163,7 @@ mode				One of the predefined values in [kernel, user]
 					  charge of the thermal management.
 
 trip_point_[0-*]_temp		The temperature above which trip point will be fired
-				Unit: degree Celsius
+				Unit: millidegree Celsius
 				RO
 				Optional
 
@@ -193,7 +193,7 @@ type				String which represents the type of device
 				eg. For memory controller device on intel_menlow platform:
 				this should be "Memory controller"
 				RO
-				Optional
+				Required
 
 max_state			The maximum permissible cooling state of this cooling device.
 				RO
@@ -219,16 +219,16 @@ the sys I/F structure will be built like this:
 
 |thermal_zone1:
 	|-----type:			ACPI thermal zone
-	|-----temp:			37
+	|-----temp:			37000
 	|-----mode:			kernel
-	|-----trip_point_0_temp:	100
+	|-----trip_point_0_temp:	100000
 	|-----trip_point_0_type:	critical
-	|-----trip_point_1_temp:	80
+	|-----trip_point_1_temp:	80000
 	|-----trip_point_1_type:	passive
-	|-----trip_point_2_temp:	70
-	|-----trip_point_2_type:	active[0]
-	|-----trip_point_3_temp:	60
-	|-----trip_point_3_type:	active[1]
+	|-----trip_point_2_temp:	70000
+	|-----trip_point_2_type:	active0
+	|-----trip_point_3_temp:	60000
+	|-----trip_point_3_type:	active1
 	|-----cdev0:			--->/sys/class/thermal/cooling_device0
 	|-----cdev0_trip_point:		1	/* cdev0 can be used for passive */
 	|-----cdev1:			--->/sys/class/thermal/cooling_device3

arch/x86/Kconfig

@@ -1259,7 +1259,7 @@ menuconfig APM
 	  machines with more than one CPU.
 
 	  In order to use APM, you will need supporting software. For location
-	  and more information, read <file:Documentation/pm.txt> and the
+	  and more information, read <file:Documentation/power/pm.txt> and the
 	  Battery Powered Linux mini-HOWTO, available from
 	  <http://www.tldp.org/docs.html#howto>.
 

drivers/acpi/Kconfig

@@ -283,24 +283,23 @@ config ACPI_TOSHIBA
 	  If you have a legacy free Toshiba laptop (such as the Libretto L1
 	  series), say Y.
 
-config ACPI_CUSTOM_DSDT
-	bool "Include Custom DSDT"
+config ACPI_CUSTOM_DSDT_FILE
+	string "Custom DSDT Table file to include"
+	default ""
 	depends on !STANDALONE
-	default n 
 	help
 	  This option supports a custom DSDT by linking it into the kernel.
 	  See Documentation/acpi/dsdt-override.txt
 
-	  If unsure, say N.
-
-config ACPI_CUSTOM_DSDT_FILE
-	string "Custom DSDT Table file to include"
-	depends on ACPI_CUSTOM_DSDT
-	default ""
-	help
 	  Enter the full path name to the file which includes the AmlCode
 	  declaration.
 
+	  If unsure, don't enter a file name.
+
+config ACPI_CUSTOM_DSDT
+	bool
+	default ACPI_CUSTOM_DSDT_FILE != ""
+
 config ACPI_CUSTOM_DSDT_INITRD
 	bool "Read Custom DSDT from initramfs"
 	depends on BLK_DEV_INITRD

drivers/acpi/bus.c

@@ -776,7 +776,7 @@ static int __init acpi_init(void)
 
 	acpi_kobj = kobject_create_and_add("acpi", firmware_kobj);
 	if (!acpi_kobj) {
-		printk(KERN_WARNING "%s: kset create error\n", __FUNCTION__);
+		printk(KERN_WARNING "%s: kset create error\n", __func__);
 		acpi_kobj = NULL;
 	}
 

drivers/acpi/button.c

@@ -449,6 +449,7 @@ static int acpi_button_add(struct acpi_device *device)
 	input->phys = button->phys;
 	input->id.bustype = BUS_HOST;
 	input->id.product = button->type;
+	input->dev.parent = &device->dev;
 
 	switch (button->type) {
 	case ACPI_BUTTON_TYPE_POWER:

drivers/acpi/ec.c

@@ -129,6 +129,7 @@ static struct acpi_ec {
 	struct mutex lock;
 	wait_queue_head_t wait;
 	struct list_head list;
+	atomic_t irq_count;
 	u8 handlers_installed;
 } *boot_ec, *first_ec;
 
@@ -181,6 +182,8 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
 {
 	int ret = 0;
 
+	atomic_set(&ec->irq_count, 0);
+
 	if (unlikely(event == ACPI_EC_EVENT_OBF_1 &&
 		     test_bit(EC_FLAGS_NO_OBF1_GPE, &ec->flags)))
 		force_poll = 1;
@@ -227,6 +230,7 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
 		while (time_before(jiffies, delay)) {
 			if (acpi_ec_check_status(ec, event))
 				goto end;
+			msleep(5);
 		}
 	}
 	pr_err(PREFIX "acpi_ec_wait timeout,"
@@ -529,6 +533,13 @@ static u32 acpi_ec_gpe_handler(void *data)
 	struct acpi_ec *ec = data;
 
 	pr_debug(PREFIX "~~~> interrupt\n");
+	atomic_inc(&ec->irq_count);
+	if (atomic_read(&ec->irq_count) > 5) {
+		pr_err(PREFIX "GPE storm detected, disabling EC GPE\n");
+		acpi_disable_gpe(NULL, ec->gpe, ACPI_ISR);
+		clear_bit(EC_FLAGS_GPE_MODE, &ec->flags);
+		return ACPI_INTERRUPT_HANDLED;
+	}
 	clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
 	if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags))
 		wake_up(&ec->wait);
@@ -943,11 +954,7 @@ int __init acpi_ec_ecdt_probe(void)
 		boot_ec->command_addr = ecdt_ptr->control.address;
 		boot_ec->data_addr = ecdt_ptr->data.address;
 		boot_ec->gpe = ecdt_ptr->gpe;
-		if (ACPI_FAILURE(acpi_get_handle(NULL, ecdt_ptr->id,
-				&boot_ec->handle))) {
-			pr_info("Failed to locate handle for boot EC\n");
-			boot_ec->handle = ACPI_ROOT_OBJECT;
-		}
+		boot_ec->handle = ACPI_ROOT_OBJECT;
 	} else {
 		/* This workaround is needed only on some broken machines,
 		 * which require early EC, but fail to provide ECDT */

drivers/acpi/osl.c

@@ -1237,7 +1237,7 @@ int acpi_check_resource_conflict(struct resource *res)
 
 	if (clash) {
 		if (acpi_enforce_resources != ENFORCE_RESOURCES_NO) {
-			printk(KERN_INFO "%sACPI: %s resource %s [0x%llx-0x%llx]"
+			printk("%sACPI: %s resource %s [0x%llx-0x%llx]"
 			       " conflicts with ACPI region %s"
 			       " [0x%llx-0x%llx]\n",
 			       acpi_enforce_resources == ENFORCE_RESOURCES_LAX

drivers/acpi/pci_irq.c

@@ -25,6 +25,7 @@
  */
 
 
+#include <linux/dmi.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -76,6 +77,101 @@ static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(int segment,
 	return NULL;
 }
 
+/* http://bugzilla.kernel.org/show_bug.cgi?id=4773 */
+static struct dmi_system_id medion_md9580[] = {
+	{
+		.ident = "Medion MD9580-F laptop",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "A555"),
+		},
+	},
+	{ }
+};
+
+/* http://bugzilla.kernel.org/show_bug.cgi?id=5044 */
+static struct dmi_system_id dell_optiplex[] = {
+	{
+		.ident = "Dell Optiplex GX1",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX1 600S+"),
+		},
+	},
+	{ }
+};
+
+/* http://bugzilla.kernel.org/show_bug.cgi?id=10138 */
+static struct dmi_system_id hp_t5710[] = {
+	{
+		.ident = "HP t5710",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "hp t5000 series"),
+			DMI_MATCH(DMI_BOARD_NAME, "098Ch"),
+		},
+	},
+	{ }
+};
+
+struct prt_quirk {
+	struct dmi_system_id	*system;
+	unsigned int		segment;
+	unsigned int		bus;
+	unsigned int		device;
+	unsigned char		pin;
+	char			*source;	/* according to BIOS */
+	char			*actual_source;
+};
+
+/*
+ * These systems have incorrect _PRT entries.  The BIOS claims the PCI
+ * interrupt at the listed segment/bus/device/pin is connected to the first
+ * link device, but it is actually connected to the second.
+ */
+static struct prt_quirk prt_quirks[] = {
+	{ medion_md9580, 0, 0, 9, 'A',
+		"\\_SB_.PCI0.ISA.LNKA",
+		"\\_SB_.PCI0.ISA.LNKB"},
+	{ dell_optiplex, 0, 0, 0xd, 'A',
+		"\\_SB_.LNKB",
+		"\\_SB_.LNKA"},
+	{ hp_t5710, 0, 0, 1, 'A',
+		"\\_SB_.PCI0.LNK1",
+		"\\_SB_.PCI0.LNK3"},
+};
+
+static void
+do_prt_fixups(struct acpi_prt_entry *entry, struct acpi_pci_routing_table *prt)
+{
+	int i;
+	struct prt_quirk *quirk;
+
+	for (i = 0; i < ARRAY_SIZE(prt_quirks); i++) {
+		quirk = &prt_quirks[i];
+
+		/* All current quirks involve link devices, not GSIs */
+		if (!prt->source)
+			continue;
+
+		if (dmi_check_system(quirk->system) &&
+		    entry->id.segment == quirk->segment &&
+		    entry->id.bus == quirk->bus &&
+		    entry->id.device == quirk->device &&
+		    entry->pin + 'A' == quirk->pin &&
+		    !strcmp(prt->source, quirk->source) &&
+		    strlen(prt->source) >= strlen(quirk->actual_source)) {
+			printk(KERN_WARNING PREFIX "firmware reports "
+				"%04x:%02x:%02x[%c] connected to %s; "
+				"changing to %s\n",
+				entry->id.segment, entry->id.bus,
+				entry->id.device, 'A' + entry->pin,
+				prt->source, quirk->actual_source);
+			strcpy(prt->source, quirk->actual_source);
+		}
+	}
+}
+
 static int
 acpi_pci_irq_add_entry(acpi_handle handle,
 		       int segment, int bus, struct acpi_pci_routing_table *prt)
@@ -96,6 +192,8 @@ acpi_pci_irq_add_entry(acpi_handle handle,
 	entry->id.function = prt->address & 0xFFFF;
 	entry->pin = prt->pin;
 
+	do_prt_fixups(entry, prt);
+
 	/*
 	 * Type 1: Dynamic
 	 * ---------------

drivers/acpi/pci_root.c

@@ -184,7 +184,7 @@ static void acpi_pci_bridge_scan(struct acpi_device *device)
 		}
 }
 
-static int acpi_pci_root_add(struct acpi_device *device)
+static int __devinit acpi_pci_root_add(struct acpi_device *device)
 {
 	int result = 0;
 	struct acpi_pci_root *root = NULL;