1 files changed, 134 insertions, 105 deletions

diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index e2be6bb33d9..9b0c57cd1d4 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -27,8 +27,8 @@
 #include <linux/fb.h>
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
-#include <acpi/acpi_drivers.h>
-#include <acpi/acpi_bus.h>
+#include <linux/slab.h>
+#include <linux/acpi.h>
 #include <linux/uaccess.h>
 #include <linux/input.h>
 #include <linux/input/sparse-keymap.h>
@@ -52,7 +52,7 @@ MODULE_LICENSE("GPL");
 
 static bool hotplug_disabled;
 
-module_param(hotplug_disabled, bool, 0644);
+module_param(hotplug_disabled, bool, 0444);
 MODULE_PARM_DESC(hotplug_disabled,
 		 "Disable hotplug for wireless device. "
 		 "If your laptop need that, please report to "
@@ -164,11 +164,10 @@ struct eeepc_laptop {
 	u16 event_count[128];		/* count for each event */
 
 	struct platform_device *platform_device;
-	struct device *hwmon_device;
+	struct acpi_device *device;		/* the device we are in */
 	struct backlight_device *backlight_device;
 
 	struct input_dev *inputdev;
-	struct key_entry *keymap;
 
 	struct rfkill *wlan_rfkill;
 	struct rfkill *bluetooth_rfkill;
@@ -189,16 +188,10 @@ struct eeepc_laptop {
  */
 static int write_acpi_int(acpi_handle handle, const char *method, int val)
 {
-	struct acpi_object_list params;
-	union acpi_object in_obj;
 	acpi_status status;
 
-	params.count = 1;
-	params.pointer = &in_obj;
-	in_obj.type = ACPI_TYPE_INTEGER;
-	in_obj.integer.value = val;
+	status = acpi_execute_simple_method(handle, (char *)method, val);
 
-	status = acpi_evaluate_object(handle, (char *)method, &params, NULL);
 	return (status == AE_OK ? 0 : -1);
 }
 
@@ -227,7 +220,7 @@ static int set_acpi(struct eeepc_laptop *eeepc, int cm, int value)
 		return -ENODEV;
 
 	if (write_acpi_int(eeepc->handle, method, value))
-		pr_warning("Error writing %s\n", method);
+		pr_warn("Error writing %s\n", method);
 	return 0;
 }
 
@@ -242,7 +235,7 @@ static int get_acpi(struct eeepc_laptop *eeepc, int cm)
 		return -ENODEV;
 
 	if (read_acpi_int(eeepc->handle, method, &value))
-		pr_warning("Error reading %s\n", method);
+		pr_warn("Error reading %s\n", method);
 	return value;
 }
 
@@ -260,7 +253,7 @@ static int acpi_setter_handle(struct eeepc_laptop *eeepc, int cm,
 	status = acpi_get_handle(eeepc->handle, (char *)method,
 				 handle);
 	if (status != AE_OK) {
-		pr_warning("Error finding %s\n", method);
+		pr_warn("Error finding %s\n", method);
 		return -ENODEV;
 	}
 	return 0;
@@ -416,7 +409,7 @@ static ssize_t store_cpufv_disabled(struct device *dev,
 	switch (value) {
 	case 0:
 		if (eeepc->cpufv_disabled)
-			pr_warning("cpufv enabled (not officially supported "
+			pr_warn("cpufv enabled (not officially supported "
 				"on this model)\n");
 		eeepc->cpufv_disabled = false;
 		return rv;
@@ -528,6 +521,15 @@ static void tpd_led_set(struct led_classdev *led_cdev,
 	queue_work(eeepc->led_workqueue, &eeepc->tpd_led_work);
 }
 
+static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
+{
+	struct eeepc_laptop *eeepc;
+
+	eeepc = container_of(led_cdev, struct eeepc_laptop, tpd_led);
+
+	return get_acpi(eeepc, CM_ASL_TPD);
+}
+
 static int eeepc_led_init(struct eeepc_laptop *eeepc)
 {
 	int rv;
@@ -542,6 +544,8 @@ static int eeepc_led_init(struct eeepc_laptop *eeepc)
 
 	eeepc->tpd_led.name = "eeepc::touchpad";
 	eeepc->tpd_led.brightness_set = tpd_led_set;
+	if (get_acpi(eeepc, CM_ASL_TPD) >= 0) /* if method is available */
+	  eeepc->tpd_led.brightness_get = tpd_led_get;
 	eeepc->tpd_led.max_brightness = 1;
 
 	rv = led_classdev_register(&eeepc->platform_device->dev,
@@ -556,7 +560,7 @@ static int eeepc_led_init(struct eeepc_laptop *eeepc)
 
 static void eeepc_led_exit(struct eeepc_laptop *eeepc)
 {
-	if (eeepc->tpd_led.dev)
+	if (!IS_ERR_OR_NULL(eeepc->tpd_led.dev))
 		led_classdev_unregister(&eeepc->tpd_led);
 	if (eeepc->led_workqueue)
 		destroy_workqueue(eeepc->led_workqueue);
@@ -573,50 +577,91 @@ static bool eeepc_wlan_rfkill_blocked(struct eeepc_laptop *eeepc)
 	return true;
 }
 
-static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc)
+static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle)
 {
+	struct pci_dev *port;
 	struct pci_dev *dev;
 	struct pci_bus *bus;
 	bool blocked = eeepc_wlan_rfkill_blocked(eeepc);
+	bool absent;
+	u32 l;
 
 	if (eeepc->wlan_rfkill)
 		rfkill_set_sw_state(eeepc->wlan_rfkill, blocked);
 
 	mutex_lock(&eeepc->hotplug_lock);
+	pci_lock_rescan_remove();
 
 	if (eeepc->hotplug_slot) {
-		bus = pci_find_bus(0, 1);
-		if (!bus) {
-			pr_warning("Unable to find PCI bus 1?\n");
+		port = acpi_get_pci_dev(handle);
+		if (!port) {
+			pr_warning("Unable to find port\n");
 			goto out_unlock;
 		}
 
+		bus = port->subordinate;
+
+		if (!bus) {
+			pr_warn("Unable to find PCI bus 1?\n");
+			goto out_put_dev;
+		}
+
+		if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
+			pr_err("Unable to read PCI config space?\n");
+			goto out_put_dev;
+		}
+
+		absent = (l == 0xffffffff);
+
+		if (blocked != absent) {
+			pr_warn("BIOS says wireless lan is %s, "
+				"but the pci device is %s\n",
+				blocked ? "blocked" : "unblocked",
+				absent ? "absent" : "present");
+			pr_warn("skipped wireless hotplug as probably "
+				"inappropriate for this model\n");
+			goto out_put_dev;
+		}
+
 		if (!blocked) {
 			dev = pci_get_slot(bus, 0);
 			if (dev) {
 				/* Device already present */
 				pci_dev_put(dev);
-				goto out_unlock;
+				goto out_put_dev;
 			}
 			dev = pci_scan_single_device(bus, 0);
 			if (dev) {
 				pci_bus_assign_resources(bus);
-				if (pci_bus_add_device(dev))
-					pr_err("Unable to hotplug wifi\n");
+				pci_bus_add_device(dev);
 			}
 		} else {
 			dev = pci_get_slot(bus, 0);
 			if (dev) {
-				pci_remove_bus_device(dev);
+				pci_stop_and_remove_bus_device(dev);
 				pci_dev_put(dev);
 			}
 		}
+out_put_dev:
+		pci_dev_put(port);
 	}
 
 out_unlock:
+	pci_unlock_rescan_remove();
 	mutex_unlock(&eeepc->hotplug_lock);
 }
 
+static void eeepc_rfkill_hotplug_update(struct eeepc_laptop *eeepc, char *node)
+{
+	acpi_status status = AE_OK;
+	acpi_handle handle;
+
+	status = acpi_get_handle(NULL, node, &handle);
+
+	if (ACPI_SUCCESS(status))
+		eeepc_rfkill_hotplug(eeepc, handle);
+}
+
 static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
 {
 	struct eeepc_laptop *eeepc = data;
@@ -624,7 +669,7 @@ static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
 	if (event != ACPI_NOTIFY_BUS_CHECK)
 		return;
 
-	eeepc_rfkill_hotplug(eeepc);
+	eeepc_rfkill_hotplug(eeepc, handle);
 }
 
 static int eeepc_register_rfkill_notifier(struct eeepc_laptop *eeepc,
@@ -641,7 +686,13 @@ static int eeepc_register_rfkill_notifier(struct eeepc_laptop *eeepc,
 						     eeepc_rfkill_notify,
 						     eeepc);
 		if (ACPI_FAILURE(status))
-			pr_warning("Failed to register notify on %s\n", node);
+			pr_warn("Failed to register notify on %s\n", node);
+
+		/*
+		 * Refresh pci hotplug in case the rfkill state was
+		 * changed during setup.
+		 */
+		eeepc_rfkill_hotplug(eeepc, handle);
 	} else
 		return -ENODEV;
 
@@ -663,6 +714,12 @@ static void eeepc_unregister_rfkill_notifier(struct eeepc_laptop *eeepc,
 		if (ACPI_FAILURE(status))
 			pr_err("Error removing rfkill notify handler %s\n",
 				node);
+			/*
+			 * Refresh pci hotplug in case the rfkill
+			 * state was changed after
+			 * eeepc_unregister_rfkill_notifier()
+			 */
+		eeepc_rfkill_hotplug(eeepc, handle);
 	}
 }
 
@@ -786,11 +843,7 @@ static void eeepc_rfkill_exit(struct eeepc_laptop *eeepc)
 		rfkill_destroy(eeepc->wlan_rfkill);
 		eeepc->wlan_rfkill = NULL;
 	}
-	/*
-	 * Refresh pci hotplug in case the rfkill state was changed after
-	 * eeepc_unregister_rfkill_notifier()
-	 */
-	eeepc_rfkill_hotplug(eeepc);
+
 	if (eeepc->hotplug_slot)
 		pci_hp_deregister(eeepc->hotplug_slot);
 
@@ -859,11 +912,6 @@ static int eeepc_rfkill_init(struct eeepc_laptop *eeepc)
 	eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
 	eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
 	eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
-	/*
-	 * Refresh pci hotplug in case the rfkill state was changed during
-	 * setup.
-	 */
-	eeepc_rfkill_hotplug(eeepc);
 
 exit:
 	if (result && result != -ENODEV)
@@ -898,8 +946,11 @@ static int eeepc_hotk_restore(struct device *device)
 	struct eeepc_laptop *eeepc = dev_get_drvdata(device);
 
 	/* Refresh both wlan rfkill state and pci hotplug */
-	if (eeepc->wlan_rfkill)
-		eeepc_rfkill_hotplug(eeepc);
+	if (eeepc->wlan_rfkill) {
+		eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P5");
+		eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P6");
+		eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P7");
+	}
 
 	if (eeepc->bluetooth_rfkill)
 		rfkill_set_sw_state(eeepc->bluetooth_rfkill,
@@ -949,7 +1000,7 @@ static int eeepc_get_fan_pwm(void)
 
 static void eeepc_set_fan_pwm(int value)
 {
-	value = SENSORS_LIMIT(value, 0, 255);
+	value = clamp_val(value, 0, 255);
 	value = value * 100 / 255;
 	ec_write(EEEPC_EC_FAN_PWM, value);
 }
@@ -1015,7 +1066,7 @@ static ssize_t show_sys_hwmon(int (*get)(void), char *buf)
 	{								\
 		return store_sys_hwmon(_get, buf, count);		\
 	}								\
-	static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0);
+	static DEVICE_ATTR(_name, _mode, show_##_name, store_##_name);
 
 EEEPC_CREATE_SENSOR_ATTR(fan1_input, S_IRUGO, eeepc_get_fan_rpm, NULL);
 EEEPC_CREATE_SENSOR_ATTR(pwm1, S_IRUGO | S_IWUSR,
@@ -1023,55 +1074,26 @@ EEEPC_CREATE_SENSOR_ATTR(pwm1, S_IRUGO | S_IWUSR,
 EEEPC_CREATE_SENSOR_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
 			 eeepc_get_fan_ctrl, eeepc_set_fan_ctrl);
 
-static ssize_t
-show_name(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "eeepc\n");
-}
-static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
-
-static struct attribute *hwmon_attributes[] = {
-	&sensor_dev_attr_pwm1.dev_attr.attr,
-	&sensor_dev_attr_fan1_input.dev_attr.attr,
-	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
-	&sensor_dev_attr_name.dev_attr.attr,
+static struct attribute *hwmon_attrs[] = {
+	&dev_attr_pwm1.attr,
+	&dev_attr_fan1_input.attr,
+	&dev_attr_pwm1_enable.attr,
 	NULL
 };
-
-static struct attribute_group hwmon_attribute_group = {
-	.attrs = hwmon_attributes
-};
-
-static void eeepc_hwmon_exit(struct eeepc_laptop *eeepc)
-{
-	struct device *hwmon;
-
-	hwmon = eeepc->hwmon_device;
-	if (!hwmon)
-		return;
-	sysfs_remove_group(&hwmon->kobj,
-			   &hwmon_attribute_group);
-	hwmon_device_unregister(hwmon);
-	eeepc->hwmon_device = NULL;
-}
+ATTRIBUTE_GROUPS(hwmon);
 
 static int eeepc_hwmon_init(struct eeepc_laptop *eeepc)
 {
+	struct device *dev = &eeepc->platform_device->dev;
 	struct device *hwmon;
-	int result;
 
-	hwmon = hwmon_device_register(&eeepc->platform_device->dev);
+	hwmon = devm_hwmon_device_register_with_groups(dev, "eeepc", NULL,
+						       hwmon_groups);
 	if (IS_ERR(hwmon)) {
 		pr_err("Could not register eeepc hwmon device\n");
-		eeepc->hwmon_device = NULL;
 		return PTR_ERR(hwmon);
 	}
-	eeepc->hwmon_device = hwmon;
-	result = sysfs_create_group(&hwmon->kobj,
-				    &hwmon_attribute_group);
-	if (result)
-		eeepc_hwmon_exit(eeepc);
-	return result;
+	return 0;
 }
 
 /*
@@ -1096,7 +1118,7 @@ static int update_bl_status(struct backlight_device *bd)
 	return set_brightness(bd, bd->props.brightness);
 }
 
-static struct backlight_ops eeepcbl_ops = {
+static const struct backlight_ops eeepcbl_ops = {
 	.get_brightness = read_brightness,
 	.update_status = update_bl_status,
 };
@@ -1113,18 +1135,21 @@ static int eeepc_backlight_notify(struct eeepc_laptop *eeepc)
 
 static int eeepc_backlight_init(struct eeepc_laptop *eeepc)
 {
+	struct backlight_properties props;
 	struct backlight_device *bd;
 
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.type = BACKLIGHT_PLATFORM;
+	props.max_brightness = 15;
 	bd = backlight_device_register(EEEPC_LAPTOP_FILE,
-				       &eeepc->platform_device->dev,
-				       eeepc, &eeepcbl_ops);
+				       &eeepc->platform_device->dev, eeepc,
+				       &eeepcbl_ops, &props);
 	if (IS_ERR(bd)) {
 		pr_err("Could not register eeepc backlight device\n");
 		eeepc->backlight_device = NULL;
 		return PTR_ERR(bd);
 	}
 	eeepc->backlight_device = bd;
-	bd->props.max_brightness = 15;
 	bd->props.brightness = read_brightness(bd);
 	bd->props.power = FB_BLANK_UNBLANK;
 	backlight_update_status(bd);
@@ -1148,10 +1173,8 @@ static int eeepc_input_init(struct eeepc_laptop *eeepc)
 	int error;
 
 	input = input_allocate_device();
-	if (!input) {
-		pr_info("Unable to allocate input device\n");
+	if (!input)
 		return -ENOMEM;
-	}
 
 	input->name = "Asus EeePC extra buttons";
 	input->phys = EEEPC_LAPTOP_FILE "/input0";
@@ -1173,9 +1196,9 @@ static int eeepc_input_init(struct eeepc_laptop *eeepc)
 	eeepc->inputdev = input;
 	return 0;
 
- err_free_keymap:
+err_free_keymap:
 	sparse_keymap_free(input);
- err_free_dev:
+err_free_dev:
 	input_free_device(input);
 	return error;
 }
@@ -1183,14 +1206,23 @@ static int eeepc_input_init(struct eeepc_laptop *eeepc)
 static void eeepc_input_exit(struct eeepc_laptop *eeepc)
 {
 	if (eeepc->inputdev) {
+		sparse_keymap_free(eeepc->inputdev);
 		input_unregister_device(eeepc->inputdev);
-		kfree(eeepc->keymap);
 	}
+	eeepc->inputdev = NULL;
 }
 
 /*
  * ACPI driver
  */
+static void eeepc_input_notify(struct eeepc_laptop *eeepc, int event)
+{
+	if (!eeepc->inputdev)
+		return ;
+	if (!sparse_keymap_report_event(eeepc->inputdev, event, 1, true))
+		pr_info("Unknown key %x pressed\n", event);
+}
+
 static void eeepc_acpi_notify(struct acpi_device *device, u32 event)
 {
 	struct eeepc_laptop *eeepc = acpi_driver_data(device);
@@ -1199,7 +1231,6 @@ static void eeepc_acpi_notify(struct acpi_device *device, u32 event)
 	if (event > ACPI_MAX_SYS_NOTIFY)
 		return;
 	count = eeepc->event_count[event % 128]++;
-	acpi_bus_generate_proc_event(device, event, count);
 	acpi_bus_generate_netlink_event(device->pnp.device_class,
 					dev_name(&device->dev), event,
 					count);
@@ -1227,12 +1258,11 @@ static void eeepc_acpi_notify(struct acpi_device *device, u32 event)
 				* event will be desired value (or else ignored)
 				*/
 			}
-			sparse_keymap_report_event(eeepc->inputdev, event,
-						   1, true);
+			eeepc_input_notify(eeepc, event);
 		}
 	} else {
 		/* Everything else is a bona-fide keypress event */
-		sparse_keymap_report_event(eeepc->inputdev, event, 1, true);
+		eeepc_input_notify(eeepc, event);
 	}
 }
 
@@ -1277,7 +1307,8 @@ static void eeepc_dmi_check(struct eeepc_laptop *eeepc)
 	 * hotplug code. In fact, current hotplug code seems to unplug another
 	 * device...
 	 */
-	if (strcmp(model, "1005HA") == 0 || strcmp(model, "1201N") == 0) {
+	if (strcmp(model, "1005HA") == 0 || strcmp(model, "1201N") == 0 ||
+	    strcmp(model, "1005PE") == 0) {
 		eeepc->hotplug_disabled = true;
 		pr_info("wlan hotplug disabled\n");
 	}
@@ -1287,7 +1318,7 @@ static void cmsg_quirk(struct eeepc_laptop *eeepc, int cm, const char *name)
 {
 	int dummy;
 
-	/* Some BIOSes do not report cm although it is avaliable.
+	/* Some BIOSes do not report cm although it is available.
 	   Check if cm_getv[cm] works and, if yes, assume cm should be set. */
 	if (!(eeepc->cm_supported & (1 << cm))
 	    && !read_acpi_int(eeepc->handle, cm_getv[cm], &dummy)) {
@@ -1305,16 +1336,15 @@ static void cmsg_quirks(struct eeepc_laptop *eeepc)
 	cmsg_quirk(eeepc, CM_ASL_TPD, "TPD");
 }
 
-static int eeepc_acpi_init(struct eeepc_laptop *eeepc,
-			   struct acpi_device *device)
+static int eeepc_acpi_init(struct eeepc_laptop *eeepc)
 {
 	unsigned int init_flags;
 	int result;
 
-	result = acpi_bus_get_status(device);
+	result = acpi_bus_get_status(eeepc->device);
 	if (result)
 		return result;
-	if (!device->status.present) {
+	if (!eeepc->device->status.present) {
 		pr_err("Hotkey device not present, aborting\n");
 		return -ENODEV;
 	}
@@ -1338,7 +1368,7 @@ static int eeepc_acpi_init(struct eeepc_laptop *eeepc,
 	return 0;
 }
 
-static void __devinit eeepc_enable_camera(struct eeepc_laptop *eeepc)
+static void eeepc_enable_camera(struct eeepc_laptop *eeepc)
 {
 	/*
 	 * If the following call to set_acpi() fails, it's because there's no
@@ -1350,7 +1380,7 @@ static void __devinit eeepc_enable_camera(struct eeepc_laptop *eeepc)
 
 static bool eeepc_device_present;
 
-static int __devinit eeepc_acpi_add(struct acpi_device *device)
+static int eeepc_acpi_add(struct acpi_device *device)
 {
 	struct eeepc_laptop *eeepc;
 	int result;
@@ -1363,12 +1393,13 @@ static int __devinit eeepc_acpi_add(struct acpi_device *device)
 	strcpy(acpi_device_name(device), EEEPC_ACPI_DEVICE_NAME);
 	strcpy(acpi_device_class(device), EEEPC_ACPI_CLASS);
 	device->driver_data = eeepc;
+	eeepc->device = device;
 
 	eeepc->hotplug_disabled = hotplug_disabled;
 
 	eeepc_dmi_check(eeepc);
 
-	result = eeepc_acpi_init(eeepc, device);
+	result = eeepc_acpi_init(eeepc);
 	if (result)
 		goto fail_platform;
 	eeepc_enable_camera(eeepc);
@@ -1418,7 +1449,6 @@ static int __devinit eeepc_acpi_add(struct acpi_device *device)
 fail_rfkill:
 	eeepc_led_exit(eeepc);
 fail_led:
-	eeepc_hwmon_exit(eeepc);
 fail_hwmon:
 	eeepc_input_exit(eeepc);
 fail_input:
@@ -1431,14 +1461,13 @@ fail_platform:
 	return result;
 }
 
-static int eeepc_acpi_remove(struct acpi_device *device, int type)
+static int eeepc_acpi_remove(struct acpi_device *device)
 {
 	struct eeepc_laptop *eeepc = acpi_driver_data(device);
 
 	eeepc_backlight_exit(eeepc);
 	eeepc_rfkill_exit(eeepc);
 	eeepc_input_exit(eeepc);
-	eeepc_hwmon_exit(eeepc);
 	eeepc_led_exit(eeepc);
 	eeepc_platform_exit(eeepc);