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path: root/drivers/hwmon/lm85.c
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Diffstat (limited to 'drivers/hwmon/lm85.c')
-rw-r--r--drivers/hwmon/lm85.c29
1 files changed, 23 insertions, 6 deletions
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index c323c2b89808..3a84dc863df0 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -5,6 +5,7 @@
Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de>
Copyright (c) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
+ Copyright (C) 2007, 2008 Jean Delvare <khali@linux-fr.org>
Chip details at <http://www.national.com/ds/LM/LM85.pdf>
@@ -192,20 +193,27 @@ static int RANGE_TO_REG(int range)
/* These are the PWM frequency encodings */
static const int lm85_freq_map[8] = { /* 1 Hz */
- 10, 15, 23, 30, 38, 47, 62, 94
+ 10, 15, 23, 30, 38, 47, 61, 94
+};
+static const int adm1027_freq_map[8] = { /* 1 Hz */
+ 11, 15, 22, 29, 35, 44, 59, 88
};
-static int FREQ_TO_REG(int freq)
+static int FREQ_TO_REG(const int *map, int freq)
{
int i;
/* Find the closest match */
for (i = 0; i < 7; ++i)
- if (freq <= (lm85_freq_map[i] + lm85_freq_map[i + 1]) / 2)
+ if (freq <= (map[i] + map[i + 1]) / 2)
break;
return i;
}
-#define FREQ_FROM_REG(val) lm85_freq_map[(val) & 0x07]
+
+static int FREQ_FROM_REG(const int *map, u8 reg)
+{
+ return map[reg & 0x07];
+}
/* Since we can't use strings, I'm abusing these numbers
* to stand in for the following meanings:
@@ -283,6 +291,7 @@ struct lm85_autofan {
struct lm85_data {
struct i2c_client client;
struct device *hwmon_dev;
+ const int *freq_map;
enum chips type;
struct mutex update_lock;
@@ -532,7 +541,8 @@ static ssize_t show_pwm_freq(struct device *dev,
{
int nr = to_sensor_dev_attr(attr)->index;
struct lm85_data *data = lm85_update_device(dev);
- return sprintf(buf, "%d\n", FREQ_FROM_REG(data->pwm_freq[nr]));
+ return sprintf(buf, "%d\n", FREQ_FROM_REG(data->freq_map,
+ data->pwm_freq[nr]));
}
static ssize_t set_pwm_freq(struct device *dev,
@@ -544,7 +554,7 @@ static ssize_t set_pwm_freq(struct device *dev,
long val = simple_strtol(buf, NULL, 10);
mutex_lock(&data->update_lock);
- data->pwm_freq[nr] = FREQ_TO_REG(val);
+ data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val);
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
(data->zone[nr].range << 4)
| data->pwm_freq[nr]);
@@ -1184,24 +1194,31 @@ static int lm85_detect(struct i2c_adapter *adapter, int address,
switch (kind) {
case lm85b:
type_name = "lm85b";
+ data->freq_map = lm85_freq_map;
break;
case lm85c:
type_name = "lm85c";
+ data->freq_map = lm85_freq_map;
break;
case adm1027:
type_name = "adm1027";
+ data->freq_map = adm1027_freq_map;
break;
case adt7463:
type_name = "adt7463";
+ data->freq_map = adm1027_freq_map;
break;
case emc6d100:
type_name = "emc6d100";
+ data->freq_map = adm1027_freq_map;
break;
case emc6d102:
type_name = "emc6d102";
+ data->freq_map = adm1027_freq_map;
break;
default:
type_name = "lm85";
+ data->freq_map = lm85_freq_map;
}
strlcpy(client->name, type_name, I2C_NAME_SIZE);