Merge ../linux-2.6-watchdog-mm

[linux-drm-fsl-dcu.git] / drivers / acpi / power.c

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 224f729f700e2e6b75f307de2b02c1af76ba70f2..fe67a8af520ecdb715e020511b028c3b6d7f865c 100644 (file)
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -70,7 +70,7 @@ static struct acpi_driver acpi_power_driver = {
 };
 
 struct acpi_power_resource {
-       acpi_handle handle;
+       struct acpi_device * device;
        acpi_bus_id name;
        u32 system_level;
        u32 order;
@@ -80,7 +80,7 @@ struct acpi_power_resource {
 
 static struct list_head acpi_power_resource_list;
 
-static struct file_operations acpi_power_fops = {
+static const struct file_operations acpi_power_fops = {
        .open = acpi_power_open_fs,
        .read = seq_read,
        .llseek = seq_lseek,
@@ -124,7 +124,7 @@ static int acpi_power_get_state(struct acpi_power_resource *resource)
        if (!resource)
                return -EINVAL;
 
-       status = acpi_evaluate_integer(resource->handle, "_STA", NULL, &sta);
+       status = acpi_evaluate_integer(resource->device->handle, "_STA", NULL, &sta);
        if (ACPI_FAILURE(status))
                return -ENODEV;
 
@@ -192,7 +192,7 @@ static int acpi_power_on(acpi_handle handle)
                return 0;
        }
 
-       status = acpi_evaluate_object(resource->handle, "_ON", NULL, NULL);
+       status = acpi_evaluate_object(resource->device->handle, "_ON", NULL, NULL);
        if (ACPI_FAILURE(status))
                return -ENODEV;
 
@@ -203,10 +203,8 @@ static int acpi_power_on(acpi_handle handle)
                return -ENOEXEC;
 
        /* Update the power resource's _device_ power state */
-       result = acpi_bus_get_device(resource->handle, &device);
-       if (result)
-               return result;
-       device->power.state = ACPI_STATE_D0;
+       device = resource->device;
+       resource->device->power.state = ACPI_STATE_D0;
 
        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned on\n",
                          resource->name));
@@ -218,10 +216,8 @@ static int acpi_power_off_device(acpi_handle handle)
 {
        int result = 0;
        acpi_status status = AE_OK;
-       struct acpi_device *device = NULL;
        struct acpi_power_resource *resource = NULL;
 
-
        result = acpi_power_get_context(handle, &resource);
        if (result)
                return result;
@@ -232,17 +228,17 @@ static int acpi_power_off_device(acpi_handle handle)
        if (resource->references) {
                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                                  "Resource [%s] is still in use, dereferencing\n",
-                                 device->pnp.bus_id));
+                                 resource->device->pnp.bus_id));
                return 0;
        }
 
        if (resource->state == ACPI_POWER_RESOURCE_STATE_OFF) {
                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] already off\n",
-                                 device->pnp.bus_id));
+                                 resource->device->pnp.bus_id));
                return 0;
        }
 
-       status = acpi_evaluate_object(resource->handle, "_OFF", NULL, NULL);
+       status = acpi_evaluate_object(resource->device->handle, "_OFF", NULL, NULL);
        if (ACPI_FAILURE(status))
                return -ENODEV;
 
@@ -253,10 +249,7 @@ static int acpi_power_off_device(acpi_handle handle)
                return -ENOEXEC;
 
        /* Update the power resource's _device_ power state */
-       result = acpi_bus_get_device(resource->handle, &device);
-       if (result)
-               return result;
-       device->power.state = ACPI_STATE_D3;
+       resource->device->power.state = ACPI_STATE_D3;
 
        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned off\n",
                          resource->name));
@@ -544,14 +537,14 @@ static int acpi_power_add(struct acpi_device *device)
                return -ENOMEM;
        memset(resource, 0, sizeof(struct acpi_power_resource));
 
-       resource->handle = device->handle;
+       resource->device = device;
        strcpy(resource->name, device->pnp.bus_id);
        strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME);
        strcpy(acpi_device_class(device), ACPI_POWER_CLASS);
        acpi_driver_data(device) = resource;
 
        /* Evalute the object to get the system level and resource order. */
-       status = acpi_evaluate_object(resource->handle, NULL, NULL, &buffer);
+       status = acpi_evaluate_object(device->handle, NULL, NULL, &buffer);
        if (ACPI_FAILURE(status)) {
                result = -ENODEV;
                goto end;