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-rw-r--r--drivers/hwmon/Kconfig2
-rw-r--r--drivers/hwmon/abituguru.c16
-rw-r--r--drivers/hwmon/abx500.c2
-rw-r--r--drivers/hwmon/iio_hwmon.c8
-rw-r--r--drivers/hwmon/lm75.c92
-rw-r--r--drivers/hwmon/nct6775.c6
-rw-r--r--drivers/hwmon/tmp401.c2
7 files changed, 107 insertions, 21 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 9c333d47143..0428e8a74b1 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -630,7 +630,7 @@ config SENSORS_LM75
temperature sensor chip, with models including:
- Analog Devices ADT75
- - Dallas Semiconductor DS75 and DS1775
+ - Dallas Semiconductor DS75, DS1775 and DS7505
- Maxim MAX6625 and MAX6626
- Microchip MCP980x
- National Semiconductor LM75, LM75A
diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c
index df0b6998791..2ebd6ce4610 100644
--- a/drivers/hwmon/abituguru.c
+++ b/drivers/hwmon/abituguru.c
@@ -1414,14 +1414,18 @@ static int abituguru_probe(struct platform_device *pdev)
pr_info("found Abit uGuru\n");
/* Register sysfs hooks */
- for (i = 0; i < sysfs_attr_i; i++)
- if (device_create_file(&pdev->dev,
- &data->sysfs_attr[i].dev_attr))
+ for (i = 0; i < sysfs_attr_i; i++) {
+ res = device_create_file(&pdev->dev,
+ &data->sysfs_attr[i].dev_attr);
+ if (res)
goto abituguru_probe_error;
- for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++)
- if (device_create_file(&pdev->dev,
- &abituguru_sysfs_attr[i].dev_attr))
+ }
+ for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++) {
+ res = device_create_file(&pdev->dev,
+ &abituguru_sysfs_attr[i].dev_attr);
+ if (res)
goto abituguru_probe_error;
+ }
data->hwmon_dev = hwmon_device_register(&pdev->dev);
if (!IS_ERR(data->hwmon_dev))
diff --git a/drivers/hwmon/abx500.c b/drivers/hwmon/abx500.c
index b4ad87b31a3..eee1134274c 100644
--- a/drivers/hwmon/abx500.c
+++ b/drivers/hwmon/abx500.c
@@ -260,7 +260,7 @@ static ssize_t show_max_alarm(struct device *dev,
return sprintf(buf, "%d\n", data->max_alarm[attr->index]);
}
-static mode_t abx500_attrs_visible(struct kobject *kobj,
+static umode_t abx500_attrs_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
struct device *dev = container_of(kobj, struct device, kobj);
diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c
index aafa4531b96..52b77afebde 100644
--- a/drivers/hwmon/iio_hwmon.c
+++ b/drivers/hwmon/iio_hwmon.c
@@ -84,8 +84,10 @@ static int iio_hwmon_probe(struct platform_device *pdev)
return PTR_ERR(channels);
st = devm_kzalloc(dev, sizeof(*st), GFP_KERNEL);
- if (st == NULL)
- return -ENOMEM;
+ if (st == NULL) {
+ ret = -ENOMEM;
+ goto error_release_channels;
+ }
st->channels = channels;
@@ -159,7 +161,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
error_remove_group:
sysfs_remove_group(&dev->kobj, &st->attr_group);
error_release_channels:
- iio_channel_release_all(st->channels);
+ iio_channel_release_all(channels);
return ret;
}
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index 291edfff55b..c03b490bba8 100644
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -38,6 +38,7 @@ enum lm75_type { /* keep sorted in alphabetical order */
adt75,
ds1775,
ds75,
+ ds7505,
lm75,
lm75a,
max6625,
@@ -71,9 +72,12 @@ struct lm75_data {
struct device *hwmon_dev;
struct mutex update_lock;
u8 orig_conf;
+ u8 resolution; /* In bits, between 9 and 12 */
+ u8 resolution_limits;
char valid; /* !=0 if registers are valid */
unsigned long last_updated; /* In jiffies */
- u16 temp[3]; /* Register values,
+ unsigned long sample_time; /* In jiffies */
+ s16 temp[3]; /* Register values,
0 = input
1 = max
2 = hyst */
@@ -93,12 +97,15 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *da,
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct lm75_data *data = lm75_update_device(dev);
+ long temp;
if (IS_ERR(data))
return PTR_ERR(data);
- return sprintf(buf, "%d\n",
- LM75_TEMP_FROM_REG(data->temp[attr->index]));
+ temp = ((data->temp[attr->index] >> (16 - data->resolution)) * 1000)
+ >> (data->resolution - 8);
+
+ return sprintf(buf, "%ld\n", temp);
}
static ssize_t set_temp(struct device *dev, struct device_attribute *da,
@@ -110,13 +117,25 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
int nr = attr->index;
long temp;
int error;
+ u8 resolution;
error = kstrtol(buf, 10, &temp);
if (error)
return error;
+ /*
+ * Resolution of limit registers is assumed to be the same as the
+ * temperature input register resolution unless given explicitly.
+ */
+ if (attr->index && data->resolution_limits)
+ resolution = data->resolution_limits;
+ else
+ resolution = data->resolution;
+
mutex_lock(&data->update_lock);
- data->temp[nr] = LM75_TEMP_TO_REG(temp);
+ temp = clamp_val(temp, LM75_TEMP_MIN, LM75_TEMP_MAX);
+ data->temp[nr] = DIV_ROUND_CLOSEST(temp << (resolution - 8),
+ 1000) << (16 - resolution);
lm75_write_value(client, LM75_REG_TEMP[nr], data->temp[nr]);
mutex_unlock(&data->update_lock);
return count;
@@ -151,6 +170,7 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
int status;
u8 set_mask, clr_mask;
int new;
+ enum lm75_type kind = id->driver_data;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
@@ -167,8 +187,65 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
* Then tweak to be more precise when appropriate.
*/
set_mask = 0;
- clr_mask = (1 << 0) /* continuous conversions */
- | (1 << 6) | (1 << 5); /* 9-bit mode */
+ clr_mask = LM75_SHUTDOWN; /* continuous conversions */
+
+ switch (kind) {
+ case adt75:
+ clr_mask |= 1 << 5; /* not one-shot mode */
+ data->resolution = 12;
+ data->sample_time = HZ / 8;
+ break;
+ case ds1775:
+ case ds75:
+ case stds75:
+ clr_mask |= 3 << 5;
+ set_mask |= 2 << 5; /* 11-bit mode */
+ data->resolution = 11;
+ data->sample_time = HZ;
+ break;
+ case ds7505:
+ set_mask |= 3 << 5; /* 12-bit mode */
+ data->resolution = 12;
+ data->sample_time = HZ / 4;
+ break;
+ case lm75:
+ case lm75a:
+ data->resolution = 9;
+ data->sample_time = HZ / 2;
+ break;
+ case max6625:
+ data->resolution = 9;
+ data->sample_time = HZ / 4;
+ break;
+ case max6626:
+ data->resolution = 12;
+ data->resolution_limits = 9;
+ data->sample_time = HZ / 4;
+ break;
+ case tcn75:
+ data->resolution = 9;
+ data->sample_time = HZ / 8;
+ break;
+ case mcp980x:
+ data->resolution_limits = 9;
+ /* fall through */
+ case tmp100:
+ case tmp101:
+ set_mask |= 3 << 5; /* 12-bit mode */
+ data->resolution = 12;
+ data->sample_time = HZ;
+ clr_mask |= 1 << 7; /* not one-shot mode */
+ break;
+ case tmp105:
+ case tmp175:
+ case tmp275:
+ case tmp75:
+ set_mask |= 3 << 5; /* 12-bit mode */
+ clr_mask |= 1 << 7; /* not one-shot mode */
+ data->resolution = 12;
+ data->sample_time = HZ / 2;
+ break;
+ }
/* configure as specified */
status = lm75_read_value(client, LM75_REG_CONF);
@@ -218,6 +295,7 @@ static const struct i2c_device_id lm75_ids[] = {
{ "adt75", adt75, },
{ "ds1775", ds1775, },
{ "ds75", ds75, },
+ { "ds7505", ds7505, },
{ "lm75", lm75, },
{ "lm75a", lm75a, },
{ "max6625", max6625, },
@@ -407,7 +485,7 @@ static struct lm75_data *lm75_update_device(struct device *dev)
mutex_lock(&data->update_lock);
- if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ if (time_after(jiffies, data->last_updated + data->sample_time)
|| !data->valid) {
int i;
dev_dbg(&client->dev, "Starting lm75 update\n");
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index f43f5e571db..04638aee903 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -3705,8 +3705,10 @@ static int nct6775_probe(struct platform_device *pdev)
data->have_temp |= 1 << i;
data->have_temp_fixed |= 1 << i;
data->reg_temp[0][i] = reg_temp_alternate[i];
- data->reg_temp[1][i] = reg_temp_over[i];
- data->reg_temp[2][i] = reg_temp_hyst[i];
+ if (i < num_reg_temp) {
+ data->reg_temp[1][i] = reg_temp_over[i];
+ data->reg_temp[2][i] = reg_temp_hyst[i];
+ }
data->temp_src[i] = i + 1;
continue;
}
diff --git a/drivers/hwmon/tmp401.c b/drivers/hwmon/tmp401.c
index a478454f690..dfe6d9527ef 100644
--- a/drivers/hwmon/tmp401.c
+++ b/drivers/hwmon/tmp401.c
@@ -240,7 +240,7 @@ static struct tmp401_data *tmp401_update_device(struct device *dev)
mutex_lock(&data->update_lock);
next_update = data->last_updated +
- msecs_to_jiffies(data->update_interval) + 1;
+ msecs_to_jiffies(data->update_interval);
if (time_after(jiffies, next_update) || !data->valid) {
if (data->kind != tmp432) {
/*
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-23 23:38:53 +0000