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Commit fb4af417 authored by Len Brown's avatar Len Brown
Browse files

Merge branch 'wakeup-etc-rafael' into release

parents 07bf2805 7b330707

drivers/acpi/acpica/evmisc.c

+55 −39
Original line number Diff line number Diff line
@@ -284,41 +284,41 @@ static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context) 
 * RETURN:      ACPI_INTERRUPT_HANDLED

 *

 * DESCRIPTION: Invoked directly from the SCI handler when a global lock

 *              release interrupt occurs. Attempt to acquire the global lock,

 *              if successful, signal the thread waiting for the lock.

 *              release interrupt occurs.  If there's a thread waiting for

 *              the global lock, signal it.

 *

 * NOTE: Assumes that the semaphore can be signaled from interrupt level. If

 * this is not possible for some reason, a separate thread will have to be

 * scheduled to do this.

 *

 ******************************************************************************/

static u8 acpi_ev_global_lock_pending;

static spinlock_t _acpi_ev_global_lock_pending_lock;

#define acpi_ev_global_lock_pending_lock &_acpi_ev_global_lock_pending_lock



static u32 acpi_ev_global_lock_handler(void *context)

{

	u8 acquired = FALSE;

	acpi_status status;

	acpi_cpu_flags flags;



	/*

	 * Attempt to get the lock.

	 *

	 * If we don't get it now, it will be marked pending and we will

	 * take another interrupt when it becomes free.

	 */

	ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired);

	if (acquired) {

	flags = acpi_os_acquire_lock(acpi_ev_global_lock_pending_lock);



		/* Got the lock, now wake all threads waiting for it */

	if (!acpi_ev_global_lock_pending) {

		goto out;

	}



		acpi_gbl_global_lock_acquired = TRUE;

	/* Send a unit to the semaphore */



		if (ACPI_FAILURE

		    (acpi_os_signal_semaphore

		     (acpi_gbl_global_lock_semaphore, 1))) {

			ACPI_ERROR((AE_INFO,

				    "Could not signal Global Lock semaphore"));

		}

	status = acpi_os_signal_semaphore(acpi_gbl_global_lock_semaphore, 1);

	if (ACPI_FAILURE(status)) {

		ACPI_ERROR((AE_INFO, "Could not signal Global Lock semaphore"));

	}



	acpi_ev_global_lock_pending = FALSE;



 out:

	acpi_os_release_lock(acpi_ev_global_lock_pending_lock, flags);



	return (ACPI_INTERRUPT_HANDLED);

}
@@ -415,6 +415,7 @@ static int acpi_ev_global_lock_acquired; 


acpi_status acpi_ev_acquire_global_lock(u16 timeout)

{

	acpi_cpu_flags flags;

	acpi_status status = AE_OK;

	u8 acquired = FALSE;
@@ -467,33 +468,48 @@ acpi_status acpi_ev_acquire_global_lock(u16 timeout) 
		return_ACPI_STATUS(AE_OK);

	}



	flags = acpi_os_acquire_lock(acpi_ev_global_lock_pending_lock);



	do {



		/* Attempt to acquire the actual hardware lock */



		ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired);

		if (acquired) {



		/* We got the lock */

			acpi_gbl_global_lock_acquired = TRUE;



			ACPI_DEBUG_PRINT((ACPI_DB_EXEC,

					  "Acquired hardware Global Lock\n"));



		acpi_gbl_global_lock_acquired = TRUE;

		return_ACPI_STATUS(AE_OK);

			break;

		}



		acpi_ev_global_lock_pending = TRUE;



		acpi_os_release_lock(acpi_ev_global_lock_pending_lock, flags);



		/*

	 * Did not get the lock. The pending bit was set above, and we must now

	 * wait until we get the global lock released interrupt.

		 * Did not get the lock. The pending bit was set above, and we

		 * must wait until we get the global lock released interrupt.

		 */

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Waiting for hardware Global Lock\n"));

		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,

				  "Waiting for hardware Global Lock\n"));



		/*

		 * Wait for handshake with the global lock interrupt handler.

		 * This interface releases the interpreter if we must wait.

		 */

	status = acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore,

		status = acpi_ex_system_wait_semaphore(

						acpi_gbl_global_lock_semaphore,

						ACPI_WAIT_FOREVER);



		flags = acpi_os_acquire_lock(acpi_ev_global_lock_pending_lock);



	} while (ACPI_SUCCESS(status));



	acpi_ev_global_lock_pending = FALSE;



	acpi_os_release_lock(acpi_ev_global_lock_pending_lock, flags);



	return_ACPI_STATUS(status);

}

drivers/acpi/button.c

+7 −2
Original line number Diff line number Diff line
@@ -279,6 +279,9 @@ static int acpi_lid_send_state(struct acpi_device *device) 
	input_report_switch(button->input, SW_LID, !state);

	input_sync(button->input);



	if (state)

		pm_wakeup_event(&device->dev, 0);



	ret = blocking_notifier_call_chain(&acpi_lid_notifier, state, device);

	if (ret == NOTIFY_DONE)

		ret = blocking_notifier_call_chain(&acpi_lid_notifier, state,
@@ -314,6 +317,8 @@ static void acpi_button_notify(struct acpi_device *device, u32 event) 
			input_sync(input);

			input_report_key(input, keycode, 0);

			input_sync(input);



			pm_wakeup_event(&device->dev, 0);

		}



		acpi_bus_generate_proc_event(device, event, ++button->pushed);
@@ -426,7 +431,7 @@ static int acpi_button_add(struct acpi_device *device) 
		acpi_enable_gpe(device->wakeup.gpe_device,

				device->wakeup.gpe_number);

		device->wakeup.run_wake_count++;

		device->wakeup.state.enabled = 1;

		device_set_wakeup_enable(&device->dev, true);

	}



	printk(KERN_INFO PREFIX "%s [%s]\n", name, acpi_device_bid(device));
@@ -449,7 +454,7 @@ static int acpi_button_remove(struct acpi_device *device, int type) 
		acpi_disable_gpe(device->wakeup.gpe_device,

				device->wakeup.gpe_number);

		device->wakeup.run_wake_count--;

		device->wakeup.state.enabled = 0;

		device_set_wakeup_enable(&device->dev, false);

	}



	acpi_button_remove_fs(device);

drivers/acpi/glue.c

+1 −4
Original line number Diff line number Diff line
@@ -167,11 +167,8 @@ static int acpi_bind_one(struct device *dev, acpi_handle handle) 
				"firmware_node");

		ret = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,

				"physical_node");

		if (acpi_dev->wakeup.flags.valid) {

		if (acpi_dev->wakeup.flags.valid)

			device_set_wakeup_capable(dev, true);

			device_set_wakeup_enable(dev,

						acpi_dev->wakeup.state.enabled);

		}

	}



	return 0;

drivers/acpi/proc.c

+12 −29
Original line number Diff line number Diff line
@@ -311,7 +311,9 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset) 
			   dev->pnp.bus_id,

			   (u32) dev->wakeup.sleep_state,

			   dev->wakeup.flags.run_wake ? '*' : ' ',

			   dev->wakeup.state.enabled ? "enabled" : "disabled");

			   (device_may_wakeup(&dev->dev)

			     || (ldev && device_may_wakeup(ldev))) ?

			       "enabled" : "disabled");

		if (ldev)

			seq_printf(seq, "%s:%s",

				   ldev->bus ? ldev->bus->name : "no-bus",
@@ -328,8 +330,10 @@ static void physical_device_enable_wakeup(struct acpi_device *adev) 
{

	struct device *dev = acpi_get_physical_device(adev->handle);



	if (dev && device_can_wakeup(dev))

		device_set_wakeup_enable(dev, adev->wakeup.state.enabled);

	if (dev && device_can_wakeup(dev)) {

		bool enable = !device_may_wakeup(dev);

		device_set_wakeup_enable(dev, enable);

	}

}



static ssize_t
@@ -341,7 +345,6 @@ acpi_system_write_wakeup_device(struct file *file, 
	char strbuf[5];

	char str[5] = "";

	unsigned int len = count;

	struct acpi_device *found_dev = NULL;



	if (len > 4)

		len = 4;
@@ -361,33 +364,13 @@ acpi_system_write_wakeup_device(struct file *file, 
			continue;



		if (!strncmp(dev->pnp.bus_id, str, 4)) {

			dev->wakeup.state.enabled =

			    dev->wakeup.state.enabled ? 0 : 1;

			found_dev = dev;

			break;

		}

	}

	if (found_dev) {

		physical_device_enable_wakeup(found_dev);

		list_for_each_safe(node, next, &acpi_wakeup_device_list) {

			struct acpi_device *dev = container_of(node,

							       struct

							       acpi_device,

							       wakeup_list);



			if ((dev != found_dev) &&

			    (dev->wakeup.gpe_number ==

			     found_dev->wakeup.gpe_number)

			    && (dev->wakeup.gpe_device ==

				found_dev->wakeup.gpe_device)) {

				printk(KERN_WARNING

				       "ACPI: '%s' and '%s' have the same GPE, "

				       "can't disable/enable one separately\n",

				       dev->pnp.bus_id, found_dev->pnp.bus_id);

				dev->wakeup.state.enabled =

				    found_dev->wakeup.state.enabled;

			if (device_can_wakeup(&dev->dev)) {

				bool enable = !device_may_wakeup(&dev->dev);

				device_set_wakeup_enable(&dev->dev, enable);

			} else {

				physical_device_enable_wakeup(dev);

			}

			break;

		}

	}

	mutex_unlock(&acpi_device_lock);

drivers/acpi/scan.c

+1 −1
Original line number Diff line number Diff line
@@ -803,7 +803,7 @@ static void acpi_bus_set_run_wake_flags(struct acpi_device *device) 
	/* Power button, Lid switch always enable wakeup */

	if (!acpi_match_device_ids(device, button_device_ids)) {

		device->wakeup.flags.run_wake = 1;

		device->wakeup.flags.always_enabled = 1;

		device_set_wakeup_capable(&device->dev, true);

		return;

	}