X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fhwmon%2Fw83627ehf.c;h=075164dd65a7a6716965538ac56d7b0320e14541;hb=f1b134fdf6d36c975b4a66cf952565cd73aebdba;hp=b15c6a998b7271aeb0f45ce21fa21be75be2cf2f;hpb=df3d80f5a5c74168be42788364d13cf6c83c7b9c;p=linux-2.6

diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index b15c6a998b..075164dd65 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -59,6 +59,10 @@ static const char * w83627ehf_device_names[] = {
 	"w83627dhg",
 };
 
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
 #define DRVNAME "w83627ehf"
 
 /*
@@ -1198,8 +1202,7 @@ static void w83627ehf_device_remove_files(struct device *dev)
 		device_remove_file(dev, &sda_temp[i].dev_attr);
 
 	device_remove_file(dev, &dev_attr_name);
-	if (data->vid != 0x3f)
-		device_remove_file(dev, &dev_attr_cpu0_vid);
+	device_remove_file(dev, &dev_attr_cpu0_vid);
 }
 
 /* Get the monitoring functions started */
@@ -1276,26 +1279,39 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
 
 	data->vrm = vid_which_vrm();
 	superio_enter(sio_data->sioreg);
-	/* Set VID input sensibility if needed. In theory the BIOS should
-	   have set it, but in practice it's not always the case. */
-	en_vrm10 = superio_inb(sio_data->sioreg, SIO_REG_EN_VRM10);
-	if ((en_vrm10 & 0x08) && data->vrm != 100) {
-		dev_warn(dev, "Setting VID input voltage to TTL\n");
-		superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
-			     en_vrm10 & ~0x08);
-	} else if (!(en_vrm10 & 0x08) && data->vrm == 100) {
-		dev_warn(dev, "Setting VID input voltage to VRM10\n");
-		superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
-			     en_vrm10 | 0x08);
-	}
 	/* Read VID value */
 	superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
-	if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80)
-		data->vid = superio_inb(sio_data->sioreg, SIO_REG_VID_DATA) & 0x3f;
-	else {
+	if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) {
+		/* Set VID input sensibility if needed. In theory the BIOS
+		   should have set it, but in practice it's not always the
+		   case. We only do it for the W83627EHF/EHG because the
+		   W83627DHG is more complex in this respect. */
+		if (sio_data->kind == w83627ehf) {
+			en_vrm10 = superio_inb(sio_data->sioreg,
+					       SIO_REG_EN_VRM10);
+			if ((en_vrm10 & 0x08) && data->vrm == 90) {
+				dev_warn(dev, "Setting VID input voltage to "
+					 "TTL\n");
+				superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
+					     en_vrm10 & ~0x08);
+			} else if (!(en_vrm10 & 0x08) && data->vrm == 100) {
+				dev_warn(dev, "Setting VID input voltage to "
+					 "VRM10\n");
+				superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
+					     en_vrm10 | 0x08);
+			}
+		}
+
+		data->vid = superio_inb(sio_data->sioreg, SIO_REG_VID_DATA);
+		if (sio_data->kind == w83627ehf) /* 6 VID pins only */
+			data->vid &= 0x3f;
+
+		err = device_create_file(dev, &dev_attr_cpu0_vid);
+		if (err)
+			goto exit_release;
+	} else {
 		dev_info(dev, "VID pins in output mode, CPU VID not "
 			 "available\n");
-		data->vid = 0x3f;
 	}
 
 	/* fan4 and fan5 share some pins with the GPIO and serial flash */
@@ -1378,12 +1394,6 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
 	if (err)
 		goto exit_remove;
 
-	if (data->vid != 0x3f) {
-		err = device_create_file(dev, &dev_attr_cpu0_vid);
-		if (err)
-			goto exit_remove;
-	}
-
 	data->hwmon_dev = hwmon_device_register(dev);
 	if (IS_ERR(data->hwmon_dev)) {
 		err = PTR_ERR(data->hwmon_dev);
@@ -1437,8 +1447,11 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
 
 	superio_enter(sioaddr);
 
-	val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
-	    | superio_inb(sioaddr, SIO_REG_DEVID + 1);
+	if (force_id)
+		val = force_id;
+	else
+		val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
+		    | superio_inb(sioaddr, SIO_REG_DEVID + 1);
 	switch (val & SIO_ID_MASK) {
 	case SIO_W83627EHF_ID:
 		sio_data->kind = w83627ehf;