---

yaml
---
r: 63952
b: refs/heads/master
c: d8dd3cb
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0b5bfa1cbefdc6e4c60f30ed545389b5ffe0f75f
+refs/heads/master: d8dd3cbcf1b30c315a28f65cb719bb2d7105a317

trunk/Documentation/kernel-parameters.txt

@@ -163,6 +163,8 @@ and is between 256 and 4096 characters. It is defined in the file
 	acpi_irq_isa=	[HW,ACPI] If irq_balance, mark listed IRQs used by ISA
 			Format: <irq>,<irq>...
 
+	acpi_no_auto_ssdt	[HW,ACPI] Disable automatic loading of SSDT
+
 	acpi_os_name=	[HW,ACPI] Tell ACPI BIOS the name of the OS
 			Format: To spoof as Windows 98: ="Microsoft Windows"
 

trunk/Documentation/thinkpad-acpi.txt

@@ -105,10 +105,10 @@ The version of thinkpad-acpi's sysfs interface is exported by the driver
 as a driver attribute (see below).
 
 Sysfs driver attributes are on the driver's sysfs attribute space,
-for 2.6.20 this is /sys/bus/platform/drivers/thinkpad-acpi/.
+for 2.6.20 this is /sys/bus/platform/drivers/thinkpad_acpi/.
 
 Sysfs device attributes are on the driver's sysfs attribute space,
-for 2.6.20 this is /sys/devices/platform/thinkpad-acpi/.
+for 2.6.20 this is /sys/devices/platform/thinkpad_acpi/.
 
 Driver version
 --------------

trunk/drivers/acpi/asus_acpi.c

@@ -1192,6 +1192,7 @@ static int asus_hotk_get_info(void)
 			break;
 		default:
 			kfree(model);
+			model = NULL;
 			break;
 		}
 	}

trunk/drivers/acpi/battery.c

@@ -113,7 +113,7 @@ struct acpi_battery_info {
 	acpi_string oem_info;
 };
 
-enum acpi_battery_files{
+enum acpi_battery_files {
 	ACPI_BATTERY_INFO = 0,
 	ACPI_BATTERY_STATE,
 	ACPI_BATTERY_ALARM,
@@ -129,13 +129,14 @@ struct acpi_battery_flags {
 };
 
 struct acpi_battery {
-	struct mutex mutex;
 	struct acpi_device *device;
 	struct acpi_battery_flags flags;
 	struct acpi_buffer bif_data;
 	struct acpi_buffer bst_data;
+	struct mutex lock;
 	unsigned long alarm;
 	unsigned long update_time[ACPI_BATTERY_NUMFILES];
+
 };
 
 inline int acpi_battery_present(struct acpi_battery *battery)
@@ -235,10 +236,10 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
 		return 0;
 
 	/* Evaluate _BIF */
-
-	status =
-	    acpi_evaluate_object(acpi_battery_handle(battery), "_BIF", NULL,
-				 &buffer);
+	mutex_lock(&battery->lock);
+	status = acpi_evaluate_object(acpi_battery_handle(battery), "_BIF",
+				      NULL, &buffer);
+	mutex_unlock(&battery->lock);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
 		return -ENODEV;
@@ -285,10 +286,10 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
 		return 0;
 
 	/* Evaluate _BST */
-
-	status =
-	    acpi_evaluate_object(acpi_battery_handle(battery), "_BST", NULL,
-				 &buffer);
+	mutex_lock(&battery->lock);
+	status = acpi_evaluate_object(acpi_battery_handle(battery), "_BST",
+				      NULL, &buffer);
+	mutex_unlock(&battery->lock);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
 		return -ENODEV;
@@ -336,9 +337,10 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
 
 	arg0.integer.value = alarm;
 
-	status =
-	    acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
+	mutex_lock(&battery->lock);
+	status = acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
 				 &arg_list, NULL);
+	mutex_unlock(&battery->lock);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
@@ -658,8 +660,6 @@ acpi_battery_write_alarm(struct file *file,
 	if (!battery || (count > sizeof(alarm_string) - 1))
 		return -EINVAL;
 
-	mutex_lock(&battery->mutex);
-
 	result = acpi_battery_update(battery, 1, &update_result);
 	if (result) {
 		result = -ENODEV;
@@ -688,9 +688,7 @@ acpi_battery_write_alarm(struct file *file,
 	acpi_battery_check_result(battery, result);
 
 	if (!result)
-		result = count;
-
-	mutex_unlock(&battery->mutex);
+		return count;
 
 	return result;
 }
@@ -714,8 +712,6 @@ static int acpi_battery_read(int fid, struct seq_file *seq)
 	int update_result = ACPI_BATTERY_NONE_UPDATE;
 	int update = 0;
 
-	mutex_lock(&battery->mutex);
-
 	update = (get_seconds() - battery->update_time[fid] >= update_time);
 	update = (update | battery->flags.update[fid]);
 
@@ -733,7 +729,6 @@ static int acpi_battery_read(int fid, struct seq_file *seq)
 	result = acpi_read_funcs[fid].print(seq, result);
 	acpi_battery_check_result(battery, result);
 	battery->flags.update[fid] = result;
-	mutex_unlock(&battery->mutex);
 	return result;
 }
 
@@ -897,10 +892,7 @@ static int acpi_battery_add(struct acpi_device *device)
 	if (!battery)
 		return -ENOMEM;
 
-	mutex_init(&battery->mutex);
-
-	mutex_lock(&battery->mutex);
-
+	mutex_init(&battery->lock);
 	battery->device = device;
 	strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
 	strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
@@ -936,7 +928,6 @@ static int acpi_battery_add(struct acpi_device *device)
 		kfree(battery);
 	}
 
-	mutex_unlock(&battery->mutex);
 
 	return result;
 }
@@ -951,8 +942,6 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 
 	battery = acpi_driver_data(device);
 
-	mutex_lock(&battery->mutex);
-
 	status = acpi_remove_notify_handler(device->handle,
 					    ACPI_ALL_NOTIFY,
 					    acpi_battery_notify);
@@ -963,9 +952,7 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 
 	kfree(battery->bst_data.pointer);
 
-	mutex_unlock(&battery->mutex);
-
-	mutex_destroy(&battery->mutex);
+	mutex_destroy(&battery->lock);
 
 	kfree(battery);
 

trunk/drivers/acpi/tables/tbxface.c

@@ -52,6 +52,8 @@ ACPI_MODULE_NAME("tbxface")
 /* Local prototypes */
 static acpi_status acpi_tb_load_namespace(void);
 
+static int no_auto_ssdt;
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_allocate_root_table
@@ -536,6 +538,10 @@ static acpi_status acpi_tb_load_namespace(void)
 
 		ACPI_INFO((AE_INFO, "Table DSDT replaced by host OS"));
 		acpi_tb_print_table_header(0, table);
+
+		if (no_auto_ssdt == 0) {
+			printk(KERN_WARNING "ACPI: DSDT override uses original SSDTs unless \"acpi_no_auto_ssdt\"");
+		}
 	}
 
 	status =
@@ -577,6 +583,11 @@ static acpi_status acpi_tb_load_namespace(void)
 			continue;
 		}
 
+		if (no_auto_ssdt) {
+			printk(KERN_WARNING "ACPI: SSDT ignored due to \"acpi_no_auto_ssdt\"\n");
+			continue;
+		}
+
 		/* Ignore errors while loading tables, get as many as possible */
 
 		(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
@@ -622,3 +633,15 @@ acpi_status acpi_load_tables(void)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_load_tables)
+
+
+static int __init acpi_no_auto_ssdt_setup(char *s) {
+
+        printk(KERN_NOTICE "ACPI: SSDT auto-load disabled\n");
+
+        no_auto_ssdt = 1;
+
+        return 1;
+}
+
+__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup);

trunk/drivers/char/sonypi.c

@@ -1147,10 +1147,15 @@ static int sonypi_acpi_remove(struct acpi_device *device, int type)
 	return 0;
 }
 
+const static struct acpi_device_id sonypi_device_ids[] = {
+	{"SNY6001", 0},
+	{"", 0},
+};
+
 static struct acpi_driver sonypi_acpi_driver = {
 	.name           = "sonypi",
 	.class          = "hkey",
-	.ids            = "SNY6001",
+	.ids            = sonypi_device_ids,
 	.ops            = {
 		           .add = sonypi_acpi_add,
 			   .remove = sonypi_acpi_remove,

trunk/drivers/misc/Kconfig

@@ -200,14 +200,22 @@ config THINKPAD_ACPI_BAY
 config THINKPAD_ACPI_INPUT_ENABLED
 	bool "Enable input layer support by default"
 	depends on THINKPAD_ACPI
-	default y
+	default n
 	---help---
-	  Enables hot key handling over the input layer by default.  If unset,
-	  the driver does not enable any hot key handling by default, and also
-	  starts up with a mostly empty keymap.
-
-	  If you are not sure, say Y here.  Say N to retain the deprecated
-	  behavior of ibm-acpi, and thinkpad-acpi for kernels up to 2.6.21.
+	  This option enables thinkpad-acpi hot key handling over the input
+	  layer at driver load time.  When it is unset, the driver does not
+	  enable hot key handling by default, and also starts up with a mostly
+	  empty keymap.
+
+	  This option should be enabled if you have a new enough HAL or other
+	  userspace support that properly handles the thinkpad-acpi event
+	  device.  It auto-tunes the hot key support to those reported by the
+	  firmware and enables it automatically.
+
+	  If unsure, say N here to retain the old behaviour of ibm-acpi, and
+	  thinkpad-acpi up to kernel 2.6.21: userspace will have to enable and
+	  set up the thinkpad-acpi hot key handling using the sysfs interace
+	  after loading the driver.
 
 
 endif # MISC_DEVICES

trunk/drivers/misc/sony-laptop.c

@@ -845,7 +845,7 @@ static struct sony_nc_event sony_C_events[] = {
 };
 
 /* SNC-only model map */
-struct dmi_system_id sony_nc_ids[] = {
+static struct dmi_system_id sony_nc_ids[] = {
 		{
 			.ident = "Sony Vaio FE Series",
 			.callback = sony_nc_C_enable,
@@ -942,6 +942,11 @@ static int sony_nc_resume(struct acpi_device *device)
 		}
 	}
 
+	/* set the last requested brightness level */
+	if (sony_backlight_device &&
+			!sony_backlight_update_status(sony_backlight_device))
+		printk(KERN_WARNING DRV_PFX "unable to restore brightness level");
+
 	/* re-initialize models with specific requirements */
 	dmi_check_system(sony_nc_ids);
 

trunk/drivers/misc/thinkpad_acpi.c

@@ -4668,12 +4668,15 @@ static int __init thinkpad_acpi_module_init(void)
 		thinkpad_acpi_module_exit();
 		return ret;
 	}
+	tp_features.platform_drv_registered = 1;
+
 	ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver);
 	if (ret) {
 		printk(IBM_ERR "unable to create sysfs driver attributes\n");
 		thinkpad_acpi_module_exit();
 		return ret;
 	}
+	tp_features.platform_drv_attrs_registered = 1;
 
 
 	/* Device initialization */
@@ -4756,8 +4759,11 @@ static void thinkpad_acpi_module_exit(void)
 	if (tpacpi_pdev)
 		platform_device_unregister(tpacpi_pdev);
 
-	tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver);
-	platform_driver_unregister(&tpacpi_pdriver);
+	if (tp_features.platform_drv_attrs_registered)
+		tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver);
+
+	if (tp_features.platform_drv_registered)
+		platform_driver_unregister(&tpacpi_pdriver);
 
 	if (proc_dir)
 		remove_proc_entry(IBM_PROC_DIR, acpi_root_dir);

trunk/drivers/misc/thinkpad_acpi.h

@@ -246,6 +246,8 @@ static struct {
 	u16 wan:1;
 	u16 fan_ctrl_status_undef:1;
 	u16 input_device_registered:1;
+	u16 platform_drv_registered:1;
+	u16 platform_drv_attrs_registered:1;
 } tp_features;
 
 struct thinkpad_id_data {