Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  hwmon/applesmc: Handle name file creation error and deletion
  hwmon/applesmc: Simplify dependencies
  hwmon-vid: Don't spam the logs when VRM version is missing
  hwmon/w83627hf: Be quiet when no chip is found
  hwmon/coretemp: Add more safety checks
  hwmon/ds1621: Fix swapped temperature limits

6 files changed, 46 insertions, 11 deletions

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 4d1cb5b855d..13eea47dceb 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -620,7 +620,7 @@ config SENSORS_HDAPS
 
 config SENSORS_APPLESMC
 	tristate "Apple SMC (Motion sensor, light sensor, keyboard backlight)"
-	depends on HWMON && INPUT && X86
+	depends on INPUT && X86
 	select NEW_LEDS
 	select LEDS_CLASS
 	default n
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 366f4a1a2cb..fd1281f4220 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -1206,11 +1206,13 @@ static int __init applesmc_init(void)
 	}
 
 	ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_name.attr);
+	if (ret)
+		goto out_device;
 
 	/* Create key enumeration sysfs files */
 	ret = sysfs_create_group(&pdev->dev.kobj, &key_enumeration_group);
 	if (ret)
-		goto out_device;
+		goto out_name;
 
 	/* create fan files */
 	count = applesmc_get_fan_count();
@@ -1310,6 +1312,8 @@ out_fan_1:
 	sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]);
 out_key_enumeration:
 	sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
+out_name:
+	sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
 out_device:
 	platform_device_unregister(pdev);
 out_driver:
@@ -1335,6 +1339,7 @@ static void __exit applesmc_exit(void)
 	sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]);
 	sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]);
 	sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
+	sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
 	platform_device_unregister(pdev);
 	platform_driver_unregister(&applesmc_driver);
 	release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS);
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 75e3911810a..0328382df8f 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -176,6 +176,22 @@ static int __devinit coretemp_probe(struct platform_device *pdev)
 		goto exit_free;
 	}
 
+	/* Check if we have problem with errata AE18 of Core processors:
+	   Readings might stop update when processor visited too deep sleep,
+	   fixed for stepping D0 (6EC).
+	*/
+
+	if ((c->x86_model == 0xe) && (c->x86_mask < 0xc)) {
+		/* check for microcode update */
+		rdmsr_on_cpu(data->id, MSR_IA32_UCODE_REV, &eax, &edx);
+		if (edx < 0x39) {
+			dev_err(&pdev->dev,
+				"Errata AE18 not fixed, update BIOS or "
+				"microcode of the CPU!\n");
+			goto exit_free;
+		}
+	}
+
 	/* Some processors have Tjmax 85 following magic should detect it
 	   Intel won't disclose the information without signed NDA, but
 	   individuals cannot sign it. Catch(ed) 22.
@@ -193,6 +209,19 @@ static int __devinit coretemp_probe(struct platform_device *pdev)
 		}
 	}
 
+	/* Intel says that above should not work for desktop Core2 processors,
+	   but it seems to work. There is no other way how get the absolute
+	   readings. Warn the user about this. First check if are desktop,
+	   bit 50 of MSR_IA32_PLATFORM_ID should be 0.
+	*/
+
+	rdmsr_safe_on_cpu(data->id, MSR_IA32_PLATFORM_ID, &eax, &edx);
+
+	if ((c->x86_model == 0xf) && (!(edx & 0x00040000))) {
+		dev_warn(&pdev->dev, "Using undocumented features, absolute "
+			 "temperature might be wrong!\n");
+	}
+
 	platform_set_drvdata(pdev, data);
 
 	if ((err = sysfs_create_group(&pdev->dev.kobj, &coretemp_group)))
@@ -330,9 +359,6 @@ static int __init coretemp_init(void)
 	int i, err = -ENODEV;
 	struct pdev_entry *p, *n;
 
-	printk(KERN_NOTICE DRVNAME ": This driver uses undocumented features "
-		"of Core CPU. Temperature might be wrong!\n");
-
 	/* quick check if we run Intel */
 	if (cpu_data[0].x86_vendor != X86_VENDOR_INTEL)
 		goto exit;
diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
index c849c0c6ee9..d5ac422d73b 100644
--- a/drivers/hwmon/ds1621.c
+++ b/drivers/hwmon/ds1621.c
@@ -53,8 +53,8 @@ MODULE_PARM_DESC(polarity, "Output's polarity: 0 = active high, 1 = active low")
 
 /* The DS1621 registers */
 #define DS1621_REG_TEMP			0xAA /* word, RO */
-#define DS1621_REG_TEMP_MIN		0xA1 /* word, RW */
-#define DS1621_REG_TEMP_MAX		0xA2 /* word, RW */
+#define DS1621_REG_TEMP_MIN		0xA2 /* word, RW */
+#define DS1621_REG_TEMP_MAX		0xA1 /* word, RW */
 #define DS1621_REG_CONF			0xAC /* byte, RW */
 #define DS1621_COM_START		0xEE /* no data */
 #define DS1621_COM_STOP			0x22 /* no data */
@@ -328,9 +328,9 @@ static struct ds1621_data *ds1621_update_client(struct device *dev)
 
 		/* reset alarms if necessary */
 		new_conf = data->conf;
-		if (data->temp < data->temp_min)
+		if (data->temp > data->temp_min)
 			new_conf &= ~DS1621_ALARM_TEMP_LOW;
-		if (data->temp > data->temp_max)
+		if (data->temp < data->temp_max)
 			new_conf &= ~DS1621_ALARM_TEMP_HIGH;
 		if (data->conf != new_conf)
 			ds1621_write_value(client, DS1621_REG_CONF,
diff --git a/drivers/hwmon/hwmon-vid.c b/drivers/hwmon/hwmon-vid.c
index 5aab23b93e2..f17e771e42f 100644
--- a/drivers/hwmon/hwmon-vid.c
+++ b/drivers/hwmon/hwmon-vid.c
@@ -132,7 +132,9 @@ int vid_from_reg(int val, u8 vrm)
 		val &= 0x7f;
 		return(val > 0x77 ? 0 : (1500000 - (val * 12500) + 500) / 1000);
 	default:		/* report 0 for unknown */
-		printk(KERN_INFO "hwmon-vid: requested unknown VRM version\n");
+		if (vrm)
+			printk(KERN_WARNING "hwmon-vid: Requested unsupported "
+			       "VRM version (%u)\n", (unsigned int)vrm);
 		return 0;
 	}
 }
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c
index a5b774b07cb..12cb40a975d 100644
--- a/drivers/hwmon/w83627hf.c
+++ b/drivers/hwmon/w83627hf.c
@@ -965,8 +965,10 @@ static int __init w83627hf_find(int sioaddr, unsigned short *addr,
 	case W687THF_DEVID:
 		sio_data->type = w83687thf;
 		break;
+	case 0xff:	/* No device at all */
+		goto exit;
 	default:
-		pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%x)\n", val);
+		pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%02x)\n", val);
 		goto exit;
 	}