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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-06 11:33:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-06 11:33:09 -0800
commitdff6d1c5ef9116a4478908001d72ee67127ecf01 (patch)
tree43c6e7ff8e8059f8fd733efd45b51f84b510d305 /drivers/hwmon/tmp421.c
parent66ce3cf84deba6cc71dcf43c9d56a4278e5f712d (diff)
parenta0a5e3488a51c46f383c5faa86b53828e30ce153 (diff)
downloadop-kernel-dev-dff6d1c5ef9116a4478908001d72ee67127ecf01.zip
op-kernel-dev-dff6d1c5ef9116a4478908001d72ee67127ecf01.tar.gz
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: (23 commits) hwmon: Remove the deprecated adt7473 driver hwmon: Fix off-by-one kind values hwmon: (tmp421) Fix temperature conversions hwmon: (tmp421) Restore missing inputs hwmon: Driver for Andigilog aSC7621 family monitoring chips hwmon: (adt7411) Improve locking hwmon: Add driver for ADT7411 voltage and temperature sensor hwmon: (w83793) Add watchdog functionality hwmon: (g760a) Make rpm_from_cnt static hwmon: (it87) Validate auto pwm settings hwmon: (it87) Add support for old automatic fan speed control hwmon: (it87) Drop dead web links in documentation hwmon: (it87) Add an entry in MAINTAINERS hwmon: (it87) Use strict_strtol instead of simple_strtol hwmon: (it87) Fix many checkpatch errors and warnings hwmon: (it87) Add support for beep on alarm hwmon: (it87) Create vid attributes by group hwmon: (it87) Refactor attributes creation and removal hwmon: (it87) Expose the PWM/temperature mappings hwmon: (it87) Display fan outputs in automatic mode as such ...
Diffstat (limited to 'drivers/hwmon/tmp421.c')
-rw-r--r--drivers/hwmon/tmp421.c24
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c
index 4f7c051..738c472 100644
--- a/drivers/hwmon/tmp421.c
+++ b/drivers/hwmon/tmp421.c
@@ -61,9 +61,9 @@ static const u8 TMP421_TEMP_LSB[4] = { 0x10, 0x11, 0x12, 0x13 };
#define TMP423_DEVICE_ID 0x23
static const struct i2c_device_id tmp421_id[] = {
- { "tmp421", tmp421 },
- { "tmp422", tmp422 },
- { "tmp423", tmp423 },
+ { "tmp421", 2 },
+ { "tmp422", 3 },
+ { "tmp423", 4 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tmp421_id);
@@ -73,21 +73,23 @@ struct tmp421_data {
struct mutex update_lock;
char valid;
unsigned long last_updated;
- int kind;
+ int channels;
u8 config;
s16 temp[4];
};
static int temp_from_s16(s16 reg)
{
- int temp = reg;
+ /* Mask out status bits */
+ int temp = reg & ~0xf;
return (temp * 1000 + 128) / 256;
}
static int temp_from_u16(u16 reg)
{
- int temp = reg;
+ /* Mask out status bits */
+ int temp = reg & ~0xf;
/* Add offset for extended temperature range. */
temp -= 64 * 256;
@@ -107,7 +109,7 @@ static struct tmp421_data *tmp421_update_device(struct device *dev)
data->config = i2c_smbus_read_byte_data(client,
TMP421_CONFIG_REG_1);
- for (i = 0; i <= data->kind; i++) {
+ for (i = 0; i < data->channels; i++) {
data->temp[i] = i2c_smbus_read_byte_data(client,
TMP421_TEMP_MSB[i]) << 8;
data->temp[i] |= i2c_smbus_read_byte_data(client,
@@ -166,7 +168,7 @@ static mode_t tmp421_is_visible(struct kobject *kobj, struct attribute *a,
devattr = container_of(a, struct device_attribute, attr);
index = to_sensor_dev_attr(devattr)->index;
- if (data->kind > index)
+ if (index < data->channels)
return a->mode;
return 0;
@@ -252,9 +254,9 @@ static int tmp421_detect(struct i2c_client *client,
return -ENODEV;
}
- strlcpy(info->type, tmp421_id[kind - 1].name, I2C_NAME_SIZE);
+ strlcpy(info->type, tmp421_id[kind].name, I2C_NAME_SIZE);
dev_info(&adapter->dev, "Detected TI %s chip at 0x%02x\n",
- names[kind - 1], client->addr);
+ names[kind], client->addr);
return 0;
}
@@ -271,7 +273,7 @@ static int tmp421_probe(struct i2c_client *client,
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
- data->kind = id->driver_data;
+ data->channels = id->driver_data;
err = tmp421_init_client(client);
if (err)
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