X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fhwmon%2Fit87.c;h=ad6c8a319903eeb8bf9fcd08950b0b58ddeba605;hb=d8543e7f30fe9306c8d5a16086bf75f71ab79acf;hp=cd741b79c17874c9beac60707ba75158f5ed20f8;hpb=c7f1f7166a83f8f5607cc03c7a6c5f936cde6b0d;p=powerpc.git

diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index cd741b79c1..ad6c8a3199 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -2,6 +2,14 @@
     it87.c - Part of lm_sensors, Linux kernel modules for hardware
              monitoring.
 
+    The IT8705F is an LPC-based Super I/O part that contains UARTs, a
+    parallel port, an IR port, a MIDI port, a floppy controller, etc., in
+    addition to an Environment Controller (Enhanced Hardware Monitor and
+    Fan Controller)
+
+    This driver supports only the Environment Controller in the IT8705F and
+    similar parts.  The other devices are supported by different drivers.
+
     Supports: IT8705F  Super I/O chip w/LPC interface
               IT8712F  Super I/O chip w/LPC interface
               IT8716F  Super I/O chip w/LPC interface
@@ -118,9 +126,15 @@ static int fix_pwm_polarity;
 /* Length of ISA address segment */
 #define IT87_EXTENT 8
 
-/* Where are the ISA address/data registers relative to the base address */
-#define IT87_ADDR_REG_OFFSET 5
-#define IT87_DATA_REG_OFFSET 6
+/* Length of ISA address segment for Environmental Controller */
+#define IT87_EC_EXTENT 2
+
+/* Offset of EC registers from ISA base address */
+#define IT87_EC_OFFSET 5
+
+/* Where are the ISA address/data registers relative to the EC base address */
+#define IT87_ADDR_REG_OFFSET 0
+#define IT87_DATA_REG_OFFSET 1
 
 /*----- The IT87 registers -----*/
 
@@ -765,7 +779,7 @@ static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
 static ssize_t
 show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
 {
-	struct it87_data *data = it87_update_device(dev);
+	struct it87_data *data = dev_get_drvdata(dev);
 	return sprintf(buf, "%u\n", data->vrm);
 }
 static ssize_t
@@ -968,10 +982,10 @@ static int __devinit it87_probe(struct platform_device *pdev)
 	};
 
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
-	if (!request_region(res->start, IT87_EXTENT, DRVNAME)) {
+	if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) {
 		dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
 			(unsigned long)res->start,
-			(unsigned long)(res->start + IT87_EXTENT - 1));
+			(unsigned long)(res->start + IT87_EC_EXTENT - 1));
 		err = -EBUSY;
 		goto ERROR0;
 	}
@@ -1124,7 +1138,7 @@ ERROR2:
 	platform_set_drvdata(pdev, NULL);
 	kfree(data);
 ERROR1:
-	release_region(res->start, IT87_EXTENT);
+	release_region(res->start, IT87_EC_EXTENT);
 ERROR0:
 	return err;
 }
@@ -1137,7 +1151,7 @@ static int __devexit it87_remove(struct platform_device *pdev)
 	sysfs_remove_group(&pdev->dev.kobj, &it87_group);
 	sysfs_remove_group(&pdev->dev.kobj, &it87_group_opt);
 
-	release_region(data->addr, IT87_EXTENT);
+	release_region(data->addr, IT87_EC_EXTENT);
 	platform_set_drvdata(pdev, NULL);
 	kfree(data);
 
@@ -1402,8 +1416,8 @@ static int __init it87_device_add(unsigned short address,
 				  const struct it87_sio_data *sio_data)
 {
 	struct resource res = {
-		.start	= address ,
-		.end	= address + IT87_EXTENT - 1,
+		.start	= address + IT87_EC_OFFSET,
+		.end	= address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1,
 		.name	= DRVNAME,
 		.flags	= IORESOURCE_IO,
 	};