Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c09c5184a26158da32801e89d5849d774605f0dd
Commit: c09c5184a26158da32801e89d5849d774605f0dd
Parent: 07584c762541672e35735b52af031183ca17a5a2
Author: Jean Delvare <[EMAIL PROTECTED]>
AuthorDate: Fri Oct 12 21:53:07 2007 +0200
Committer: Mark M. Hoffman <[EMAIL PROTECTED]>
CommitDate: Sat Oct 13 12:48:11 2007 -0400
hwmon: (w83627hf) Fix setting fan min right after driver load
We need to read the fan clock dividers at initialization time,
otherwise the code in store_fan_min() may use uninitialized values.
That's pretty much the same bug and same fix as for the w83627ehf
driver last month.
Signed-off-by: Jean Delvare <[EMAIL PROTECTED]>
Signed-off-by: Mark M. Hoffman <[EMAIL PROTECTED]>
---
drivers/hwmon/w83627hf.c | 34 ++++++++++++++++++++++------------
1 files changed, 22 insertions(+), 12 deletions(-)
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c
index 996fc1c..2169d8c 100644
--- a/drivers/hwmon/w83627hf.c
+++ b/drivers/hwmon/w83627hf.c
@@ -389,6 +389,7 @@ static int __devexit w83627hf_remove(struct platform_device
*pdev);
static int w83627hf_read_value(struct w83627hf_data *data, u16 reg);
static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16
value);
+static void w83627hf_update_fan_div(struct w83627hf_data *data);
static struct w83627hf_data *w83627hf_update_device(struct device *dev);
static void w83627hf_init_device(struct platform_device *pdev);
@@ -1206,6 +1207,7 @@ static int __devinit w83627hf_probe(struct
platform_device *pdev)
data->fan_min[0] = w83627hf_read_value(data, W83781D_REG_FAN_MIN(1));
data->fan_min[1] = w83627hf_read_value(data, W83781D_REG_FAN_MIN(2));
data->fan_min[2] = w83627hf_read_value(data, W83781D_REG_FAN_MIN(3));
+ w83627hf_update_fan_div(data);
/* Register common device attributes */
if ((err = sysfs_create_group(&dev->kobj, &w83627hf_group)))
@@ -1540,6 +1542,24 @@ static void __devinit w83627hf_init_device(struct
platform_device *pdev)
| 0x01);
}
+static void w83627hf_update_fan_div(struct w83627hf_data *data)
+{
+ int reg;
+
+ reg = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
+ data->fan_div[0] = (reg >> 4) & 0x03;
+ data->fan_div[1] = (reg >> 6) & 0x03;
+ if (data->type != w83697hf) {
+ data->fan_div[2] = (w83627hf_read_value(data,
+ W83781D_REG_PIN) >> 6) & 0x03;
+ }
+ reg = w83627hf_read_value(data, W83781D_REG_VBAT);
+ data->fan_div[0] |= (reg >> 3) & 0x04;
+ data->fan_div[1] |= (reg >> 4) & 0x04;
+ if (data->type != w83697hf)
+ data->fan_div[2] |= (reg >> 5) & 0x04;
+}
+
static struct w83627hf_data *w83627hf_update_device(struct device *dev)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
@@ -1617,18 +1637,8 @@ static struct w83627hf_data
*w83627hf_update_device(struct device *dev)
w83627hf_read_value(data, W83781D_REG_TEMP_HYST(3));
}
- i = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
- data->fan_div[0] = (i >> 4) & 0x03;
- data->fan_div[1] = (i >> 6) & 0x03;
- if (data->type != w83697hf) {
- data->fan_div[2] = (w83627hf_read_value(data,
- W83781D_REG_PIN) >> 6) & 0x03;
- }
- i = w83627hf_read_value(data, W83781D_REG_VBAT);
- data->fan_div[0] |= (i >> 3) & 0x04;
- data->fan_div[1] |= (i >> 4) & 0x04;
- if (data->type != w83697hf)
- data->fan_div[2] |= (i >> 5) & 0x04;
+ w83627hf_update_fan_div(data);
+
data->alarms =
w83627hf_read_value(data, W83781D_REG_ALARM1) |
(w83627hf_read_value(data, W83781D_REG_ALARM2) << 8) |
-
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