diff options
Diffstat (limited to 'drivers/acpi/bus.c')
| -rw-r--r-- | drivers/acpi/bus.c | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index c26468da4295..e5084ececb6f 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -39,7 +39,7 @@ #include <acpi/acpi_drivers.h> #define _COMPONENT ACPI_BUS_COMPONENT -ACPI_MODULE_NAME("acpi_bus") +ACPI_MODULE_NAME("bus"); #ifdef CONFIG_X86 extern void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger); #endif @@ -103,7 +103,9 @@ int acpi_bus_get_status(struct acpi_device *device) else if (device->parent) device->status = device->parent->status; else - STRUCT_TO_INT(device->status) = 0x0F; + STRUCT_TO_INT(device->status) = + ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | + ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING; if (device->status.functional && !device->status.present) { printk(KERN_WARNING PREFIX "Device [%s] status [%08x]: " @@ -147,7 +149,7 @@ int acpi_bus_get_power(acpi_handle handle, int *state) *state = ACPI_STATE_D0; } else { /* - * Get the device's power state either directly (via _PSC) or + * Get the device's power state either directly (via _PSC) or * indirectly (via power resources). */ if (device->power.flags.explicit_get) { @@ -199,15 +201,14 @@ int acpi_bus_set_power(acpi_handle handle, int state) * Get device's current power state if it's unknown * This means device power state isn't initialized or previous setting failed */ - if (!device->flags.force_power_state) { - if (device->power.state == ACPI_STATE_UNKNOWN) - acpi_bus_get_power(device->handle, &device->power.state); - if (state == device->power.state) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", - state)); - return 0; - } + if ((device->power.state == ACPI_STATE_UNKNOWN) || device->flags.force_power_state) + acpi_bus_get_power(device->handle, &device->power.state); + if ((state == device->power.state) && !device->flags.force_power_state) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", + state)); + return 0; } + if (!device->power.states[state].flags.valid) { printk(KERN_WARNING PREFIX "Device does not support D%d\n", state); return -ENODEV; @@ -462,7 +463,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) "Received BUS CHECK notification for device [%s]\n", device->pnp.bus_id)); result = acpi_bus_check_scope(device); - /* + /* * TBD: We'll need to outsource certain events to non-ACPI * drivers via the device manager (device.c). */ @@ -473,7 +474,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) "Received DEVICE CHECK notification for device [%s]\n", device->pnp.bus_id)); result = acpi_bus_check_device(device, NULL); - /* + /* * TBD: We'll need to outsource certain events to non-ACPI * drivers via the device manager (device.c). */ @@ -543,7 +544,7 @@ static int __init acpi_bus_init_irq(void) char *message = NULL; - /* + /* * Let the system know what interrupt model we are using by * evaluating the \_PIC object, if exists. */ @@ -684,7 +685,7 @@ static int __init acpi_bus_init(void) * the EC device is found in the namespace (i.e. before acpi_initialize_objects() * is called). * - * This is accomplished by looking for the ECDT table, and getting + * This is accomplished by looking for the ECDT table, and getting * the EC parameters out of that. */ status = acpi_ec_ecdt_probe(); @@ -699,6 +700,9 @@ static int __init acpi_bus_init(void) printk(KERN_INFO PREFIX "Interpreter enabled\n"); + /* Initialize sleep structures */ + acpi_sleep_init(); + /* * Get the system interrupt model and evaluate \_PIC. */ |