[PATCH] ata: add some NVIDIA chipset IDs

[powerpc.git] / drivers / acpi / pci_link.c

diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 07bc6df..228bdb6 100644 (file)
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -38,6 +38,7 @@
 #include <linux/spinlock.h>
 #include <linux/pm.h>
 #include <linux/pci.h>
+#include <linux/mutex.h>
 
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
@@ -91,7 +92,7 @@ static struct {
        int count;
        struct list_head entries;
 } acpi_link;
-DECLARE_MUTEX(acpi_link_lock);
+DEFINE_MUTEX(acpi_link_lock);
 
 /* --------------------------------------------------------------------------
                             PCI Link Device Management
@@ -641,19 +642,19 @@ acpi_pci_link_allocate_irq(acpi_handle handle,
                return_VALUE(-1);
        }
 
-       down(&acpi_link_lock);
+       mutex_lock(&acpi_link_lock);
        if (acpi_pci_link_allocate(link)) {
-               up(&acpi_link_lock);
+               mutex_unlock(&acpi_link_lock);
                return_VALUE(-1);
        }
 
        if (!link->irq.active) {
-               up(&acpi_link_lock);
+               mutex_unlock(&acpi_link_lock);
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link active IRQ is 0!\n"));
                return_VALUE(-1);
        }
        link->refcnt++;
-       up(&acpi_link_lock);
+       mutex_unlock(&acpi_link_lock);
 
        if (triggering)
                *triggering = link->irq.triggering;
@@ -691,9 +692,9 @@ int acpi_pci_link_free_irq(acpi_handle handle)
                return_VALUE(-1);
        }
 
-       down(&acpi_link_lock);
+       mutex_lock(&acpi_link_lock);
        if (!link->irq.initialized) {
-               up(&acpi_link_lock);
+               mutex_unlock(&acpi_link_lock);
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link isn't initialized\n"));
                return_VALUE(-1);
        }
@@ -716,7 +717,7 @@ int acpi_pci_link_free_irq(acpi_handle handle)
        if (link->refcnt == 0) {
                acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
        }
-       up(&acpi_link_lock);
+       mutex_unlock(&acpi_link_lock);
        return_VALUE(link->irq.active);
 }
 
@@ -747,7 +748,7 @@ static int acpi_pci_link_add(struct acpi_device *device)
        strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS);
        acpi_driver_data(device) = link;
 
-       down(&acpi_link_lock);
+       mutex_lock(&acpi_link_lock);
        result = acpi_pci_link_get_possible(link);
        if (result)
                goto end;
@@ -782,7 +783,7 @@ static int acpi_pci_link_add(struct acpi_device *device)
       end:
        /* disable all links -- to be activated on use */
        acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
-       up(&acpi_link_lock);
+       mutex_unlock(&acpi_link_lock);
 
        if (result)
                kfree(link);
@@ -812,6 +813,9 @@ static int irqrouter_resume(struct sys_device *dev)
 
        ACPI_FUNCTION_TRACE("irqrouter_resume");
 
+       /* Make sure SCI is enabled again (Apple firmware bug?) */
+       acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1, ACPI_MTX_DO_NOT_LOCK);
+
        acpi_in_resume = 1;
        list_for_each(node, &acpi_link.entries) {
                link = list_entry(node, struct acpi_pci_link, node);
@@ -837,9 +841,9 @@ static int acpi_pci_link_remove(struct acpi_device *device, int type)
 
        link = (struct acpi_pci_link *)acpi_driver_data(device);
 
-       down(&acpi_link_lock);
+       mutex_lock(&acpi_link_lock);
        list_del(&link->node);
-       up(&acpi_link_lock);
+       mutex_unlock(&acpi_link_lock);
 
        kfree(link);