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-rw-r--r--drivers/hwmon/Kconfig127
-rw-r--r--drivers/hwmon/Makefile13
-rw-r--r--drivers/hwmon/coretemp.c177
-rw-r--r--drivers/hwmon/i5k_amb.c42
-rw-r--r--drivers/hwmon/ibmaem.c15
-rw-r--r--drivers/hwmon/lm90.c65
-rw-r--r--drivers/hwmon/lm95241.c31
-rw-r--r--drivers/hwmon/lm95245.c543
-rw-r--r--drivers/hwmon/max16065.c2
-rw-r--r--drivers/hwmon/max1668.c502
-rw-r--r--drivers/hwmon/ntc_thermistor.c452
-rw-r--r--drivers/hwmon/pmbus/Kconfig100
-rw-r--r--drivers/hwmon/pmbus/Makefile13
-rw-r--r--drivers/hwmon/pmbus/adm1275.c (renamed from drivers/hwmon/adm1275.c)66
-rw-r--r--drivers/hwmon/pmbus/lm25066.c352
-rw-r--r--drivers/hwmon/pmbus/max16064.c (renamed from drivers/hwmon/max16064.c)57
-rw-r--r--drivers/hwmon/pmbus/max34440.c (renamed from drivers/hwmon/max34440.c)81
-rw-r--r--drivers/hwmon/pmbus/max8688.c (renamed from drivers/hwmon/max8688.c)69
-rw-r--r--drivers/hwmon/pmbus/pmbus.c (renamed from drivers/hwmon/pmbus.c)37
-rw-r--r--drivers/hwmon/pmbus/pmbus.h (renamed from drivers/hwmon/pmbus.h)49
-rw-r--r--drivers/hwmon/pmbus/pmbus_core.c (renamed from drivers/hwmon/pmbus_core.c)371
-rw-r--r--drivers/hwmon/pmbus/ucd9000.c (renamed from drivers/hwmon/ucd9000.c)6
-rw-r--r--drivers/hwmon/pmbus/ucd9200.c (renamed from drivers/hwmon/ucd9200.c)6
23 files changed, 2852 insertions, 324 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 0598cd22edf..0b62c3c6b7c 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -623,7 +623,7 @@ config SENSORS_LM90
LM86, LM89 and LM99, Analog Devices ADM1032, ADT7461, and ADT7461A,
Maxim MAX6646, MAX6647, MAX6648, MAX6649, MAX6657, MAX6658, MAX6659,
MAX6680, MAX6681, MAX6692, MAX6695, MAX6696, ON Semiconductor NCT1008,
- and Winbond/Nuvoton W83L771W/G/AWG/ASG sensor chips.
+ Winbond/Nuvoton W83L771W/G/AWG/ASG and Philips SA56004 sensor chips.
This driver can also be built as a module. If so, the module
will be called lm90.
@@ -694,14 +694,24 @@ config SENSORS_LTC4261
be called ltc4261.
config SENSORS_LM95241
- tristate "National Semiconductor LM95241 sensor chip"
+ tristate "National Semiconductor LM95241 and compatibles"
depends on I2C
help
- If you say yes here you get support for LM95241 sensor chip.
+ If you say yes here you get support for LM95231 and LM95241 sensor
+ chips.
This driver can also be built as a module. If so, the module
will be called lm95241.
+config SENSORS_LM95245
+ tristate "National Semiconductor LM95245 sensor chip"
+ depends on I2C && EXPERIMENTAL
+ help
+ If you say yes here you get support for LM95245 sensor chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called lm95245.
+
config SENSORS_MAX1111
tristate "Maxim MAX1111 Multichannel, Serial 8-bit ADC chip"
depends on SPI_MASTER
@@ -736,6 +746,16 @@ config SENSORS_MAX1619
This driver can also be built as a module. If so, the module
will be called max1619.
+config SENSORS_MAX1668
+ tristate "Maxim MAX1668 and compatibles"
+ depends on I2C && EXPERIMENTAL
+ help
+ If you say yes here you get support for MAX1668, MAX1989 and
+ MAX1805 chips.
+
+ This driver can also be built as a module. If so, the module
+ will be called max1668.
+
config SENSORS_MAX6639
tristate "Maxim MAX6639 sensor chip"
depends on I2C && EXPERIMENTAL
@@ -767,6 +787,20 @@ config SENSORS_MAX6650
This driver can also be built as a module. If so, the module
will be called max6650.
+config SENSORS_NTC_THERMISTOR
+ tristate "NTC thermistor support"
+ depends on EXPERIMENTAL
+ help
+ This driver supports NTC thermistors sensor reading and its
+ interpretation. The driver can also monitor the temperature and
+ send notifications about the temperature.
+
+ Currently, this driver supports
+ NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, and NCP15WL333.
+
+ This driver can also be built as a module. If so, the module
+ will be called ntc-thermistor.
+
config SENSORS_PC87360
tristate "National Semiconductor PC87360 family"
select HWMON_VID
@@ -807,92 +841,7 @@ config SENSORS_PCF8591
These devices are hard to detect and rarely found on mainstream
hardware. If unsure, say N.
-config PMBUS
- tristate "PMBus support"
- depends on I2C && EXPERIMENTAL
- default n
- help
- Say yes here if you want to enable PMBus support.
-
- This driver can also be built as a module. If so, the module will
- be called pmbus_core.
-
-if PMBUS
-
-config SENSORS_PMBUS
- tristate "Generic PMBus devices"
- default n
- help
- If you say yes here you get hardware monitoring support for generic
- PMBus devices, including but not limited to BMR450, BMR451, BMR453,
- BMR454, and LTC2978.
-
- This driver can also be built as a module. If so, the module will
- be called pmbus.
-
-config SENSORS_ADM1275
- tristate "Analog Devices ADM1275"
- default n
- help
- If you say yes here you get hardware monitoring support for Analog
- Devices ADM1275 Hot-Swap Controller and Digital Power Monitor.
-
- This driver can also be built as a module. If so, the module will
- be called adm1275.
-
-config SENSORS_MAX16064
- tristate "Maxim MAX16064"
- default n
- help
- If you say yes here you get hardware monitoring support for Maxim
- MAX16064.
-
- This driver can also be built as a module. If so, the module will
- be called max16064.
-
-config SENSORS_MAX34440
- tristate "Maxim MAX34440/MAX34441"
- default n
- help
- If you say yes here you get hardware monitoring support for Maxim
- MAX34440 and MAX34441.
-
- This driver can also be built as a module. If so, the module will
- be called max34440.
-
-config SENSORS_MAX8688
- tristate "Maxim MAX8688"
- default n
- help
- If you say yes here you get hardware monitoring support for Maxim
- MAX8688.
-
- This driver can also be built as a module. If so, the module will
- be called max8688.
-
-config SENSORS_UCD9000
- tristate "TI UCD90120, UCD90124, UCD9090, UCD90910"
- default n
- help
- If you say yes here you get hardware monitoring support for TI
- UCD90120, UCD90124, UCD9090, UCD90910 Sequencer and System Health
- Controllers.
-
- This driver can also be built as a module. If so, the module will
- be called ucd9000.
-
-config SENSORS_UCD9200
- tristate "TI UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, UCD9248"
- default n
- help
- If you say yes here you get hardware monitoring support for TI
- UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and UCD9248
- Digital PWM System Controllers.
-
- This driver can also be built as a module. If so, the module will
- be called ucd9200.
-
-endif # PMBUS
+source drivers/hwmon/pmbus/Kconfig
config SENSORS_SHT15
tristate "Sensiron humidity and temperature sensors. SHT15 and compat."
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index d7995a1d078..3c9ccefea79 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -80,6 +80,7 @@ obj-$(CONFIG_SENSORS_LM90) += lm90.o
obj-$(CONFIG_SENSORS_LM92) += lm92.o
obj-$(CONFIG_SENSORS_LM93) += lm93.o
obj-$(CONFIG_SENSORS_LM95241) += lm95241.o
+obj-$(CONFIG_SENSORS_LM95245) += lm95245.o
obj-$(CONFIG_SENSORS_LTC4151) += ltc4151.o
obj-$(CONFIG_SENSORS_LTC4215) += ltc4215.o
obj-$(CONFIG_SENSORS_LTC4245) += ltc4245.o
@@ -87,10 +88,12 @@ obj-$(CONFIG_SENSORS_LTC4261) += ltc4261.o
obj-$(CONFIG_SENSORS_MAX1111) += max1111.o
obj-$(CONFIG_SENSORS_MAX16065) += max16065.o
obj-$(CONFIG_SENSORS_MAX1619) += max1619.o
+obj-$(CONFIG_SENSORS_MAX1668) += max1668.o
obj-$(CONFIG_SENSORS_MAX6639) += max6639.o
obj-$(CONFIG_SENSORS_MAX6642) += max6642.o
obj-$(CONFIG_SENSORS_MAX6650) += max6650.o
obj-$(CONFIG_SENSORS_MC13783_ADC)+= mc13783-adc.o
+obj-$(CONFIG_SENSORS_NTC_THERMISTOR) += ntc_thermistor.o
obj-$(CONFIG_SENSORS_PC87360) += pc87360.o
obj-$(CONFIG_SENSORS_PC87427) += pc87427.o
obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o
@@ -121,15 +124,7 @@ obj-$(CONFIG_SENSORS_W83L786NG) += w83l786ng.o
obj-$(CONFIG_SENSORS_WM831X) += wm831x-hwmon.o
obj-$(CONFIG_SENSORS_WM8350) += wm8350-hwmon.o
-# PMBus drivers
-obj-$(CONFIG_PMBUS) += pmbus_core.o
-obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o
-obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o
-obj-$(CONFIG_SENSORS_MAX16064) += max16064.o
-obj-$(CONFIG_SENSORS_MAX34440) += max34440.o
-obj-$(CONFIG_SENSORS_MAX8688) += max8688.o
-obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
-obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
+obj-$(CONFIG_PMBUS) += pmbus/
ccflags-$(CONFIG_HWMON_DEBUG_CHIP) := -DDEBUG
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 0070d5476dd..59d83e83da7 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -44,7 +44,9 @@
#define BASE_SYSFS_ATTR_NO 2 /* Sysfs Base attr no for coretemp */
#define NUM_REAL_CORES 16 /* Number of Real cores per cpu */
#define CORETEMP_NAME_LENGTH 17 /* String Length of attrs */
-#define MAX_ATTRS 5 /* Maximum no of per-core attrs */
+#define MAX_CORE_ATTRS 4 /* Maximum no of basic attrs */
+#define MAX_THRESH_ATTRS 3 /* Maximum no of Threshold attrs */
+#define TOTAL_ATTRS (MAX_CORE_ATTRS + MAX_THRESH_ATTRS)
#define MAX_CORE_DATA (NUM_REAL_CORES + BASE_SYSFS_ATTR_NO)
#ifdef CONFIG_SMP
@@ -67,6 +69,9 @@
* This value is passed as "id" field to rdmsr/wrmsr functions.
* @status_reg: One of IA32_THERM_STATUS or IA32_PACKAGE_THERM_STATUS,
* from where the temperature values should be read.
+ * @intrpt_reg: One of IA32_THERM_INTERRUPT or IA32_PACKAGE_THERM_INTERRUPT,
+ * from where the thresholds are read.
+ * @attr_size: Total number of pre-core attrs displayed in the sysfs.
* @is_pkg_data: If this is 1, the temp_data holds pkgtemp data.
* Otherwise, temp_data holds coretemp data.
* @valid: If this is 1, the current temperature is valid.
@@ -74,15 +79,18 @@
struct temp_data {
int temp;
int ttarget;
+ int tmin;
int tjmax;
unsigned long last_updated;
unsigned int cpu;
u32 cpu_core_id;
u32 status_reg;
+ u32 intrpt_reg;
+ int attr_size;
bool is_pkg_data;
bool valid;
- struct sensor_device_attribute sd_attrs[MAX_ATTRS];
- char attr_name[MAX_ATTRS][CORETEMP_NAME_LENGTH];
+ struct sensor_device_attribute sd_attrs[TOTAL_ATTRS];
+ char attr_name[TOTAL_ATTRS][CORETEMP_NAME_LENGTH];
struct mutex update_lock;
};
@@ -135,6 +143,19 @@ static ssize_t show_crit_alarm(struct device *dev,
return sprintf(buf, "%d\n", (eax >> 5) & 1);
}
+static ssize_t show_max_alarm(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ u32 eax, edx;
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct platform_data *pdata = dev_get_drvdata(dev);
+ struct temp_data *tdata = pdata->core_data[attr->index];
+
+ rdmsr_on_cpu(tdata->cpu, tdata->status_reg, &eax, &edx);
+
+ return sprintf(buf, "%d\n", !!(eax & THERM_STATUS_THRESHOLD1));
+}
+
static ssize_t show_tjmax(struct device *dev,
struct device_attribute *devattr, char *buf)
{
@@ -153,6 +174,83 @@ static ssize_t show_ttarget(struct device *dev,
return sprintf(buf, "%d\n", pdata->core_data[attr->index]->ttarget);
}
+static ssize_t store_ttarget(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct platform_data *pdata = dev_get_drvdata(dev);
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct temp_data *tdata = pdata->core_data[attr->index];
+ u32 eax, edx;
+ unsigned long val;
+ int diff;
+
+ if (strict_strtoul(buf, 10, &val))
+ return -EINVAL;
+
+ /*
+ * THERM_MASK_THRESHOLD1 is 7 bits wide. Values are entered in terms
+ * of milli degree celsius. Hence don't accept val > (127 * 1000)
+ */
+ if (val > tdata->tjmax || val > 127000)
+ return -EINVAL;
+
+ diff = (tdata->tjmax - val) / 1000;
+
+ mutex_lock(&tdata->update_lock);
+ rdmsr_on_cpu(tdata->cpu, tdata->intrpt_reg, &eax, &edx);
+ eax = (eax & ~THERM_MASK_THRESHOLD1) |
+ (diff << THERM_SHIFT_THRESHOLD1);
+ wrmsr_on_cpu(tdata->cpu, tdata->intrpt_reg, eax, edx);
+ tdata->ttarget = val;
+ mutex_unlock(&tdata->update_lock);
+
+ return count;
+}
+
+static ssize_t show_tmin(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct platform_data *pdata = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", pdata->core_data[attr->index]->tmin);
+}
+
+static ssize_t store_tmin(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct platform_data *pdata = dev_get_drvdata(dev);
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct temp_data *tdata = pdata->core_data[attr->index];
+ u32 eax, edx;
+ unsigned long val;
+ int diff;
+
+ if (strict_strtoul(buf, 10, &val))
+ return -EINVAL;
+
+ /*
+ * THERM_MASK_THRESHOLD0 is 7 bits wide. Values are entered in terms
+ * of milli degree celsius. Hence don't accept val > (127 * 1000)
+ */
+ if (val > tdata->tjmax || val > 127000)
+ return -EINVAL;
+
+ diff = (tdata->tjmax - val) / 1000;
+
+ mutex_lock(&tdata->update_lock);
+ rdmsr_on_cpu(tdata->cpu, tdata->intrpt_reg, &eax, &edx);
+ eax = (eax & ~THERM_MASK_THRESHOLD0) |
+ (diff << THERM_SHIFT_THRESHOLD0);
+ wrmsr_on_cpu(tdata->cpu, tdata->intrpt_reg, eax, edx);
+ tdata->tmin = val;
+ mutex_unlock(&tdata->update_lock);
+
+ return count;
+}
+
static ssize_t show_temp(struct device *dev,
struct device_attribute *devattr, char *buf)
{
@@ -344,23 +442,31 @@ static int create_core_attrs(struct temp_data *tdata, struct device *dev,
int attr_no)
{
int err, i;
- static ssize_t (*rd_ptr[MAX_ATTRS]) (struct device *dev,
+ static ssize_t (*rd_ptr[TOTAL_ATTRS]) (struct device *dev,
struct device_attribute *devattr, char *buf) = {
- show_label, show_crit_alarm, show_ttarget,
- show_temp, show_tjmax };
- static const char *names[MAX_ATTRS] = {
+ show_label, show_crit_alarm, show_temp, show_tjmax,
+ show_max_alarm, show_ttarget, show_tmin };
+ static ssize_t (*rw_ptr[TOTAL_ATTRS]) (struct device *dev,
+ struct device_attribute *devattr, const char *buf,
+ size_t count) = { NULL, NULL, NULL, NULL, NULL,
+ store_ttarget, store_tmin };
+ static const char *names[TOTAL_ATTRS] = {
"temp%d_label", "temp%d_crit_alarm",
- "temp%d_max", "temp%d_input",
- "temp%d_crit" };
+ "temp%d_input", "temp%d_crit",
+ "temp%d_max_alarm", "temp%d_max",
+ "temp%d_max_hyst" };
- for (i = 0; i < MAX_ATTRS; i++) {
+ for (i = 0; i < tdata->attr_size; i++) {
snprintf(tdata->attr_name[i], CORETEMP_NAME_LENGTH, names[i],
attr_no);
sysfs_attr_init(&tdata->sd_attrs[i].dev_attr.attr);
tdata->sd_attrs[i].dev_attr.attr.name = tdata->attr_name[i];
tdata->sd_attrs[i].dev_attr.attr.mode = S_IRUGO;
+ if (rw_ptr[i]) {
+ tdata->sd_attrs[i].dev_attr.attr.mode |= S_IWUSR;
+ tdata->sd_attrs[i].dev_attr.store = rw_ptr[i];
+ }
tdata->sd_attrs[i].dev_attr.show = rd_ptr[i];
- tdata->sd_attrs[i].dev_attr.store = NULL;
tdata->sd_attrs[i].index = attr_no;
err = device_create_file(dev, &tdata->sd_attrs[i].dev_attr);
if (err)
@@ -374,38 +480,6 @@ exit_free:
return err;
}
-static void update_ttarget(__u8 cpu_model, struct temp_data *tdata,
- struct device *dev)
-{
- int err;
- u32 eax, edx;
-
- /*
- * Initialize ttarget value. Eventually this will be
- * initialized with the value from MSR_IA32_THERM_INTERRUPT
- * register. If IA32_TEMPERATURE_TARGET is supported, this
- * value will be over written below.
- * To Do: Patch to initialize ttarget from MSR_IA32_THERM_INTERRUPT
- */
- tdata->ttarget = tdata->tjmax - 20000;
-
- /*
- * Read the still undocumented IA32_TEMPERATURE_TARGET. It exists
- * on older CPUs but not in this register,
- * Atoms don't have it either.
- */
- if (cpu_model > 0xe && cpu_model != 0x1c) {
- err = rdmsr_safe_on_cpu(tdata->cpu,
- MSR_IA32_TEMPERATURE_TARGET, &eax, &edx);
- if (err) {
- dev_warn(dev,
- "Unable to read IA32_TEMPERATURE_TARGET MSR\n");
- } else {
- tdata->ttarget = tdata->tjmax -
- ((eax >> 8) & 0xff) * 1000;
- }
- }
-}
static int __devinit chk_ucode_version(struct platform_device *pdev)
{
@@ -464,9 +538,12 @@ static struct temp_data *init_temp_data(unsigned int cpu, int pkg_flag)
tdata->status_reg = pkg_flag ? MSR_IA32_PACKAGE_THERM_STATUS :
MSR_IA32_THERM_STATUS;
+ tdata->intrpt_reg = pkg_flag ? MSR_IA32_PACKAGE_THERM_INTERRUPT :
+ MSR_IA32_THERM_INTERRUPT;
tdata->is_pkg_data = pkg_flag;
tdata->cpu = cpu;
tdata->cpu_core_id = TO_CORE_ID(cpu);
+ tdata->attr_size = MAX_CORE_ATTRS;
mutex_init(&tdata->update_lock);
return tdata;
}
@@ -516,7 +593,17 @@ static int create_core_data(struct platform_data *pdata,
else
tdata->tjmax = get_tjmax(c, cpu, &pdev->dev);
- update_ttarget(c->x86_model, tdata, &pdev->dev);
+ /*
+ * Test if we can access the intrpt register. If so, increase the
+ * 'size' enough to have ttarget/tmin/max_alarm interfaces.
+ * Initialize ttarget with bits 16:22 of MSR_IA32_THERM_INTERRUPT
+ */
+ err = rdmsr_safe_on_cpu(cpu, tdata->intrpt_reg, &eax, &edx);
+ if (!err) {
+ tdata->attr_size += MAX_THRESH_ATTRS;
+ tdata->ttarget = tdata->tjmax - ((eax >> 16) & 0x7f) * 1000;
+ }
+
pdata->core_data[attr_no] = tdata;
/* Create sysfs interfaces */
@@ -553,7 +640,7 @@ static void coretemp_remove_core(struct platform_data *pdata,
struct temp_data *tdata = pdata->core_data[indx];
/* Remove the sysfs attributes */
- for (i = 0; i < MAX_ATTRS; i++)
+ for (i = 0; i < tdata->attr_size; i++)
device_remove_file(dev, &tdata->sd_attrs[i].dev_attr);
kfree(pdata->core_data[indx]);
diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c
index c4c40be0edb..d22f241b6a6 100644
--- a/drivers/hwmon/i5k_amb.c
+++ b/drivers/hwmon/i5k_amb.c
@@ -114,7 +114,6 @@ struct i5k_amb_data {
void __iomem *amb_mmio;
struct i5k_device_attribute *attrs;
unsigned int num_attrs;
- unsigned long chipset_id;
};
static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
@@ -444,8 +443,6 @@ static int __devinit i5k_find_amb_registers(struct i5k_amb_data *data,
goto out;
}
- data->chipset_id = devid;
-
res = 0;
out:
pci_dev_put(pcidev);
@@ -478,23 +475,13 @@ out:
return res;
}
-static unsigned long i5k_channel_pci_id(struct i5k_amb_data *data,
- unsigned long channel)
-{
- switch (data->chipset_id) {
- case PCI_DEVICE_ID_INTEL_5000_ERR:
- return PCI_DEVICE_ID_INTEL_5000_FBD0 + channel;
- case PCI_DEVICE_ID_INTEL_5400_ERR:
- return PCI_DEVICE_ID_INTEL_5400_FBD0 + channel;
- default:
- BUG();
- }
-}
-
-static unsigned long chipset_ids[] = {
- PCI_DEVICE_ID_INTEL_5000_ERR,
- PCI_DEVICE_ID_INTEL_5400_ERR,
- 0
+static struct {
+ unsigned long err;
+ unsigned long fbd0;
+} chipset_ids[] __devinitdata = {
+ { PCI_DEVICE_ID_INTEL_5000_ERR, PCI_DEVICE_ID_INTEL_5000_FBD0 },
+ { PCI_DEVICE_ID_INTEL_5400_ERR, PCI_DEVICE_ID_INTEL_5400_FBD0 },
+ { 0, 0 }
};
#ifdef MODULE
@@ -510,8 +497,7 @@ static int __devinit i5k_amb_probe(struct platform_device *pdev)
{
struct i5k_amb_data *data;
struct resource *reso;
- int i;
- int res = -ENODEV;
+ int i, res;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
@@ -520,22 +506,22 @@ static int __devinit i5k_amb_probe(struct platform_device *pdev)
/* Figure out where the AMB registers live */
i = 0;
do {
- res = i5k_find_amb_registers(data, chipset_ids[i]);
+ res = i5k_find_amb_registers(data, chipset_ids[i].err);
+ if (res == 0)
+ break;
i++;
- } while (res && chipset_ids[i]);
+ } while (chipset_ids[i].err);
if (res)
goto err;
/* Copy the DIMM presence map for the first two channels */
- res = i5k_channel_probe(&data->amb_present[0],
- i5k_channel_pci_id(data, 0));
+ res = i5k_channel_probe(&data->amb_present[0], chipset_ids[i].fbd0);
if (res)
goto err;
/* Copy the DIMM presence map for the optional second two channels */
- i5k_channel_probe(&data->amb_present[2],
- i5k_channel_pci_id(data, 1));
+ i5k_channel_probe(&data->amb_present[2], chipset_ids[i].fbd0 + 1);
/* Set up resource regions */
reso = request_mem_region(data->amb_base, data->amb_len, DRVNAME);
diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c
index 1a409c5bc9b..c316294c48b 100644
--- a/drivers/hwmon/ibmaem.c
+++ b/drivers/hwmon/ibmaem.c
@@ -432,13 +432,15 @@ static int aem_read_sensor(struct aem_data *data, u8 elt, u8 reg,
aem_send_message(ipmi);
res = wait_for_completion_timeout(&ipmi->read_complete, IPMI_TIMEOUT);
- if (!res)
- return -ETIMEDOUT;
+ if (!res) {
+ res = -ETIMEDOUT;
+ goto out;
+ }
if (ipmi->rx_result || ipmi->rx_msg_len != rs_size ||
memcmp(&rs_resp->id, &system_x_id, sizeof(system_x_id))) {
- kfree(rs_resp);
- return -ENOENT;
+ res = -ENOENT;
+ goto out;
}
switch (size) {
@@ -463,8 +465,11 @@ static int aem_read_sensor(struct aem_data *data, u8 elt, u8 reg,
break;
}
}
+ res = 0;
- return 0;
+out:
+ kfree(rs_resp);
+ return res;
}
/* Update AEM energy registers */
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 2f94f950480..90ddb877421 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -54,6 +54,9 @@
* and extended mode. They are mostly compatible with LM90 except for a data
* format difference for the temperature value registers.
*
+ * This driver also supports the SA56004 from Philips. This device is
+ * pin-compatible with the LM86, the ED/EDP parts are also address-compatible.
+ *
* Since the LM90 was the first chipset supported by this driver, most
* comments will refer to this chipset, but are actually general and
* concern all supported chipsets, unless mentioned otherwise.
@@ -96,13 +99,15 @@
* MAX6659 can have address 0x4c, 0x4d or 0x4e.
* MAX6680 and MAX6681 can have address 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b,
* 0x4c, 0x4d or 0x4e.
+ * SA56004 can have address 0x48 through 0x4F.
*/
static const unsigned short normal_i2c[] = {
- 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
+ 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x48, 0x49, 0x4a, 0x4b, 0x4c,
+ 0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
- max6646, w83l771, max6696 };
+ max6646, w83l771, max6696, sa56004 };
/*
* The LM90 registers
@@ -152,6 +157,10 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
#define MAX6659_REG_R_LOCAL_EMERG 0x17
#define MAX6659_REG_W_LOCAL_EMERG 0x17
+/* SA56004 registers */
+
+#define SA56004_REG_R_LOCAL_TEMPL 0x22
+
#define LM90_DEF_CONVRATE_RVAL 6 /* Def conversion rate register value */
#define LM90_MAX_CONVRATE_MS 16000 /* Maximum conversion rate in ms */
@@ -161,7 +170,6 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
#define LM90_FLAG_ADT7461_EXT (1 << 0) /* ADT7461 extended mode */
/* Device features */
#define LM90_HAVE_OFFSET (1 << 1) /* temperature offset register */
-#define LM90_HAVE_LOCAL_EXT (1 << 2) /* extended local temperature */
#define LM90_HAVE_REM_LIMIT_EXT (1 << 3) /* extended remote limit */
#define LM90_HAVE_EMERGENCY (1 << 4) /* 3rd upper (emergency) limit */
#define LM90_HAVE_EMERGENCY_ALARM (1 << 5)/* emergency alarm */
@@ -192,6 +200,7 @@ static const struct i2c_device_id lm90_id[] = {
{ "max6696", max6696 },
{ "nct1008", adt7461 },
{ "w83l771", w83l771 },
+ { "sa56004", sa56004 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm90_id);
@@ -204,6 +213,7 @@ struct lm90_params {
u16 alert_alarms; /* Which alarm bits trigger ALERT# */
/* Upper 8 bits for max6695/96 */
u8 max_convrate; /* Maximum conversion rate register value */
+ u8 reg_local_ext; /* Extended local temp register (optional) */
};
static const struct lm90_params lm90_params[] = {
@@ -235,19 +245,20 @@ static const struct lm90_params lm90_params[] = {
.max_convrate = 9,
},
[max6646] = {
- .flags = LM90_HAVE_LOCAL_EXT,
.alert_alarms = 0x7c,
.max_convrate = 6,
+ .reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
},
[max6657] = {
- .flags = LM90_HAVE_LOCAL_EXT,
.alert_alarms = 0x7c,
.max_convrate = 8,
+ .reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
},
[max6659] = {
- .flags = LM90_HAVE_LOCAL_EXT | LM90_HAVE_EMERGENCY,
+ .flags = LM90_HAVE_EMERGENCY,
.alert_alarms = 0x7c,
.max_convrate = 8,
+ .reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
},
[max6680] = {
.flags = LM90_HAVE_OFFSET,
@@ -255,16 +266,23 @@ static const struct lm90_params lm90_params[] = {
.max_convrate = 7,
},
[max6696] = {
- .flags = LM90_HAVE_LOCAL_EXT | LM90_HAVE_EMERGENCY
+ .flags = LM90_HAVE_EMERGENCY
| LM90_HAVE_EMERGENCY_ALARM | LM90_HAVE_TEMP3,
.alert_alarms = 0x187c,
.max_convrate = 6,
+ .reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
},
[w83l771] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
.alert_alarms = 0x7c,
.max_convrate = 8,
},
+ [sa56004] = {
+ .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+ .alert_alarms = 0x7b,
+ .max_convrate = 9,
+ .reg_local_ext = SA56004_REG_R_LOCAL_TEMPL,
+ },
};
/*
@@ -286,6 +304,7 @@ struct lm90_data {
u16 alert_alarms; /* Which alarm bits trigger ALERT# */
/* Upper 8 bits for max6695/96 */
u8 max_convrate; /* Maximum conversion rate */
+ u8 reg_local_ext; /* local extension register offset */
/* registers values */
s8 temp8[8]; /* 0: local low limit
@@ -452,9 +471,9 @@ static struct lm90_data *lm90_update_device(struct device *dev)
lm90_read_reg(client, LM90_REG_R_REMOTE_CRIT, &data->temp8[3]);
lm90_read_reg(client, LM90_REG_R_TCRIT_HYST, &data->temp_hyst);
- if (data->flags & LM90_HAVE_LOCAL_EXT) {
+ if (data->reg_local_ext) {
lm90_read16(client, LM90_REG_R_LOCAL_TEMP,
- MAX6657_REG_R_LOCAL_TEMPL,
+ data->reg_local_ext,
&data->temp11[4]);
} else {
if (lm90_read_reg(client, LM90_REG_R_LOCAL_TEMP,
@@ -1092,7 +1111,7 @@ static int lm90_detect(struct i2c_client *new_client,
struct i2c_adapter *adapter = new_client->adapter;
int address = new_client->addr;
const char *name = NULL;
- int man_id, chip_id, reg_config1, reg_convrate;
+ int man_id, chip_id, reg_config1, reg_config2, reg_convrate;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
@@ -1108,15 +1127,16 @@ static int lm90_detect(struct i2c_client *new_client,
LM90_REG_R_CONVRATE)) < 0)
return -ENODEV;
- if ((address == 0x4C || address == 0x4D)
- && man_id == 0x01) { /* National Semiconductor */
- int reg_config2;
-
+ if (man_id == 0x01 || man_id == 0x5C || man_id == 0x41) {
reg_config2 = i2c_smbus_read_byte_data(new_client,
LM90_REG_R_CONFIG2);
if (reg_config2 < 0)
return -ENODEV;
+ } else
+ reg_config2 = 0; /* Make compiler happy */
+ if ((address == 0x4C || address == 0x4D)
+ && man_id == 0x01) { /* National Semiconductor */
if ((reg_config1 & 0x2A) == 0x00
&& (reg_config2 & 0xF8) == 0x00
&& reg_convrate <= 0x09) {
@@ -1245,13 +1265,6 @@ static int lm90_detect(struct i2c_client *new_client,
} else
if (address == 0x4C
&& man_id == 0x5C) { /* Winbond/Nuvoton */
- int reg_config2;
-
- reg_config2 = i2c_smbus_read_byte_data(new_client,
- LM90_REG_R_CONFIG2);
- if (reg_config2 < 0)
- return -ENODEV;
-
if ((reg_config1 & 0x2A) == 0x00
&& (reg_config2 & 0xF8) == 0x00) {
if (chip_id == 0x01 /* W83L771W/G */
@@ -1263,6 +1276,15 @@ static int lm90_detect(struct i2c_client *new_client,
name = "w83l771";
}
}
+ } else
+ if (address >= 0x48 && address <= 0x4F
+ && man_id == 0xA1) { /* NXP Semiconductor/Philips */
+ if (chip_id == 0x00
+ && (reg_config1 & 0x2A) == 0x00
+ && (reg_config2 & 0xFE) == 0x00
+ && reg_convrate <= 0x09) {
+ name = "sa56004";
+ }
}
if (!name) { /* identification failed */
@@ -1368,6 +1390,7 @@ static int lm90_probe(struct i2c_client *new_client,
/* Set chip capabilities */
data->flags = lm90_params[data->kind].flags;
+ data->reg_local_ext = lm90_params[data->kind].reg_local_ext;
/* Set maximum conversion rate */
data->max_convrate = lm90_params[data->kind].max_convrate;
diff --git a/drivers/hwmon/lm95241.c b/drivers/hwmon/lm95241.c
index d3b464b74ce..513901d592a 100644
--- a/drivers/hwmon/lm95241.c
+++ b/drivers/hwmon/lm95241.c
@@ -74,8 +74,9 @@ static const unsigned short normal_i2c[] = {
#define TT_OFF 0
#define TT_ON 1
#define TT_MASK 7
-#define MANUFACTURER_ID 0x01
-#define DEFAULT_REVISION 0xA4
+#define NATSEMI_MAN_ID 0x01
+#define LM95231_CHIP_ID 0xA1
+#define LM95241_CHIP_ID 0xA4
static const u8 lm95241_reg_address[] = {
LM95241_REG_R_LOCAL_TEMPH,
@@ -338,20 +339,25 @@ static int lm95241_detect(struct i2c_client *new_client,
struct i2c_board_info *info)
{
struct i2c_adapter *adapter = new_client->adapter;
- int address = new_client->addr;
const char *name;
+ int mfg_id, chip_id;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
- if ((i2c_smbus_read_byte_data(new_client, LM95241_REG_R_MAN_ID)
- == MANUFACTURER_ID)
- && (i2c_smbus_read_byte_data(new_client, LM95241_REG_R_CHIP_ID)
- == DEFAULT_REVISION)) {
- name = DEVNAME;
- } else {
- dev_dbg(&adapter->dev, "LM95241 detection failed at 0x%02x\n",
- address);
+ mfg_id = i2c_smbus_read_byte_data(new_client, LM95241_REG_R_MAN_ID);
+ if (mfg_id != NATSEMI_MAN_ID)
+ return -ENODEV;
+
+ chip_id = i2c_smbus_read_byte_data(new_client, LM95241_REG_R_CHIP_ID);
+ switch (chip_id) {
+ case LM95231_CHIP_ID:
+ name = "lm95231";
+ break;
+ case LM95241_CHIP_ID:
+ name = "lm95241";
+ break;
+ default:
return -ENODEV;
}
@@ -431,7 +437,8 @@ static int lm95241_remove(struct i2c_client *client)
/* Driver data (common to all clients) */
static const struct i2c_device_id lm95241_id[] = {
- { DEVNAME, 0 },
+ { "lm95231", 0 },
+ { "lm95241", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm95241_id);
diff --git a/drivers/hwmon/lm95245.c b/drivers/hwmon/lm95245.c
new file mode 100644
index 00000000000..dce9e68241e
--- /dev/null
+++ b/drivers/hwmon/lm95245.c
@@ -0,0 +1,543 @@
+/*
+ * Copyright (C) 2011 Alexander Stein <alexander.stein@systec-electronic.com>
+ *
+ * The LM95245 is a sensor chip made by National Semiconductors.
+ * It reports up to two temperatures (its own plus an external one).
+ * Complete datasheet can be obtained from National's website at:
+ * http://www.national.com/ds.cgi/LM/LM95245.pdf
+ *
+ * This driver is based on lm95241.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+#define DEVNAME "lm95245"
+
+static const unsigned short normal_i2c[] = {
+ 0x18, 0x19, 0x29, 0x4c, 0x4d, I2C_CLIENT_END };
+
+/* LM95245 registers */
+/* general registers */
+#define LM95245_REG_RW_CONFIG1 0x03
+#define LM95245_REG_RW_CONVERS_RATE 0x04
+#define LM95245_REG_W_ONE_SHOT 0x0F
+
+/* diode configuration */
+#define LM95245_REG_RW_CONFIG2 0xBF
+#define LM95245_REG_RW_REMOTE_OFFH 0x11
+#define LM95245_REG_RW_REMOTE_OFFL 0x12
+
+/* status registers */
+#define LM95245_REG_R_STATUS1 0x02
+#define LM95245_REG_R_STATUS2 0x33
+
+/* limit registers */
+#define LM95245_REG_RW_REMOTE_OS_LIMIT 0x07
+#define LM95245_REG_RW_LOCAL_OS_TCRIT_LIMIT 0x20
+#define LM95245_REG_RW_REMOTE_TCRIT_LIMIT 0x19
+#define LM95245_REG_RW_COMMON_HYSTERESIS 0x21
+
+/* temperature signed */
+#define LM95245_REG_R_LOCAL_TEMPH_S 0x00
+#define LM95245_REG_R_LOCAL_TEMPL_S 0x30
+#define LM95245_REG_R_REMOTE_TEMPH_S 0x01
+#define LM95245_REG_R_REMOTE_TEMPL_S 0x10
+/* temperature unsigned */
+#define LM95245_REG_R_REMOTE_TEMPH_U 0x31
+#define LM95245_REG_R_REMOTE_TEMPL_U 0x32
+
+/* id registers */
+#define LM95245_REG_R_MAN_ID 0xFE
+#define LM95245_REG_R_CHIP_ID 0xFF
+
+/* LM95245 specific bitfields */
+#define CFG_STOP 0x40
+#define CFG_REMOTE_TCRIT_MASK 0x10
+#define CFG_REMOTE_OS_MASK 0x08
+#define CFG_LOCAL_TCRIT_MASK 0x04
+#define CFG_LOCAL_OS_MASK 0x02
+
+#define CFG2_OS_A0 0x40
+#define CFG2_DIODE_FAULT_OS 0x20
+#define CFG2_DIODE_FAULT_TCRIT 0x10
+#define CFG2_REMOTE_TT 0x08
+#define CFG2_REMOTE_FILTER_DIS 0x00
+#define CFG2_REMOTE_FILTER_EN 0x06
+
+/* conversation rate in ms */
+#define RATE_CR0063 0x00
+#define RATE_CR0364 0x01
+#define RATE_CR1000 0x02
+#define RATE_CR2500 0x03
+
+#define STATUS1_DIODE_FAULT 0x04
+#define STATUS1_RTCRIT 0x02
+#define STATUS1_LOC 0x01
+
+#define MANUFACTURER_ID 0x01
+#define DEFAULT_REVISION 0xB3
+
+static const u8 lm95245_reg_address[] = {
+ LM95245_REG_R_LOCAL_TEMPH_S,
+ LM95245_REG_R_LOCAL_TEMPL_S,
+ LM95245_REG_R_REMOTE_TEMPH_S,
+ LM95245_REG_R_REMOTE_TEMPL_S,
+ LM95245_REG_R_REMOTE_TEMPH_U,
+ LM95245_REG_R_REMOTE_TEMPL_U,
+ LM95245_REG_RW_LOCAL_OS_TCRIT_LIMIT,
+ LM95245_REG_RW_REMOTE_TCRIT_LIMIT,
+ LM95245_REG_RW_COMMON_HYSTERESIS,
+ LM95245_REG_R_STATUS1,
+};
+
+/* Client data (each client gets its own) */
+struct lm95245_data {
+ struct device *hwmon_dev;
+ struct mutex update_lock;
+ unsigned long last_updated; /* in jiffies */
+ unsigned long interval; /* in msecs */
+ bool valid; /* zero until following fields are valid */
+ /* registers values */
+ u8 regs[ARRAY_SIZE(lm95245_reg_address)];
+ u8 config1, config2;
+};
+
+/* Conversions */
+static int temp_from_reg_unsigned(u8 val_h, u8 val_l)
+{
+ return val_h * 1000 + val_l * 1000 / 256;
+}
+
+static int temp_from_reg_signed(u8 val_h, u8 val_l)
+{
+ if (val_h & 0x80)
+ return (val_h - 0x100) * 1000;
+ return temp_from_reg_unsigned(val_h, val_l);
+}
+
+static struct lm95245_data *lm95245_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm95245_data *data = i2c_get_clientdata(client);
+
+ mutex_lock(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated
+ + msecs_to_jiffies(data->interval)) || !data->valid) {
+ int i;
+
+ dev_dbg(&client->dev, "Updating lm95245 data.\n");
+ for (i = 0; i < ARRAY_SIZE(lm95245_reg_address); i++)
+ data->regs[i]
+ = i2c_smbus_read_byte_data(client,
+ lm95245_reg_address[i]);
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+ return data;
+}
+
+static unsigned long lm95245_read_conversion_rate(struct i2c_client *client)
+{
+ int rate;
+ unsigned long interval;
+
+ rate = i2c_smbus_read_byte_data(client, LM95245_REG_RW_CONVERS_RATE);
+
+ switch (rate) {
+ case RATE_CR0063:
+ interval = 63;
+ break;
+ case RATE_CR0364:
+ interval = 364;
+ break;
+ case RATE_CR1000:
+ interval = 1000;
+ break;
+ case RATE_CR2500:
+ default:
+ interval = 2500;
+ break;
+ }
+
+ return interval;
+}
+
+static unsigned long lm95245_set_conversion_rate(struct i2c_client *client,
+ unsigned long interval)
+{
+ int rate;
+
+ if (interval <= 63) {
+ interval = 63;
+ rate = RATE_CR0063;
+ } else if (interval <= 364) {
+ interval = 364;
+ rate = RATE_CR0364;
+ } else if (interval <= 1000) {
+ interval = 1000;
+ rate = RATE_CR1000;
+ } else {
+ interval = 2500;
+ rate = RATE_CR2500;
+ }
+
+ i2c_smbus_write_byte_data(client, LM95245_REG_RW_CONVERS_RATE, rate);
+
+ return interval;
+}
+
+/* Sysfs stuff */
+static ssize_t show_input(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct lm95245_data *data = lm95245_update_device(dev);
+ int temp;
+ int index = to_sensor_dev_attr(attr)->index;
+
+ /*
+ * Index 0 (Local temp) is always signed
+ * Index 2 (Remote temp) has both signed and unsigned data
+ * use signed calculation for remote if signed bit is set
+ */
+ if (index == 0 || data->regs[index] & 0x80)
+ temp = temp_from_reg_signed(data->regs[index],
+ data->regs[index + 1]);
+ else
+ temp = temp_from_reg_unsigned(data->regs[index + 2],
+ data->regs[index + 3]);
+
+ return snprintf(buf, PAGE_SIZE - 1, "%d\n", temp);
+}
+
+static ssize_t show_limit(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct lm95245_data *data = lm95245_update_device(dev);
+ int index = to_sensor_dev_attr(attr)->index;
+
+ return snprintf(buf, PAGE_SIZE - 1, "%d\n",
+ data->regs[index] * 1000);
+}
+
+static ssize_t set_limit(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm95245_data *data = i2c_get_clientdata(client);
+ int index = to_sensor_dev_attr(attr)->index;
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+
+ val /= 1000;
+
+ val = SENSORS_LIMIT(val, 0, (index == 6 ? 127 : 255));
+
+ mutex_lock(&data->update_lock);
+
+ data->valid = 0;
+
+ i2c_smbus_write_byte_data(client, lm95245_reg_address[index], val);
+
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t set_crit_hyst(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm95245_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+
+ val /= 1000;
+
+ val = SENSORS_LIMIT(val, 0, 31);
+
+ mutex_lock(&data->update_lock);
+
+ data->valid = 0;
+
+ /* shared crit hysteresis */
+ i2c_smbus_write_byte_data(client, LM95245_REG_RW_COMMON_HYSTERESIS,
+ val);
+
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t show_type(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm95245_data *data = i2c_get_clientdata(client);
+
+ return snprintf(buf, PAGE_SIZE - 1,
+ data->config2 & CFG2_REMOTE_TT ? "1\n" : "2\n");
+}
+
+static ssize_t set_type(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm95245_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+ if (val != 1 && val != 2)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+
+ if (val == 1)
+ data->config2 |= CFG2_REMOTE_TT;
+ else
+ data->config2 &= ~CFG2_REMOTE_TT;
+
+ data->valid = 0;
+
+ i2c_smbus_write_byte_data(client, LM95245_REG_RW_CONFIG2,
+ data->config2);
+
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct lm95245_data *data = lm95245_update_device(dev);
+ int index = to_sensor_dev_attr(attr)->index;
+
+ return snprintf(buf, PAGE_SIZE - 1, "%d\n",
+ !!(data->regs[9] & index));
+}
+
+static ssize_t show_interval(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct lm95245_data *data = lm95245_update_device(dev);
+
+ return snprintf(buf, PAGE_SIZE - 1, "%lu\n", data->interval);
+}
+
+static ssize_t set_interval(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm95245_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+
+ data->interval = lm95245_set_conversion_rate(client, val);
+
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_input, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_limit,
+ set_limit, 6);
+static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_limit,
+ set_crit_hyst, 8);
+static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL,
+ STATUS1_LOC);
+
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_input, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_limit,
+ set_limit, 7);
+static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_limit,
+ set_crit_hyst, 8);
+static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL,
+ STATUS1_RTCRIT);
+static SENSOR_DEVICE_ATTR(temp2_type, S_IWUSR | S_IRUGO, show_type,
+ set_type, 0);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL,
+ STATUS1_DIODE_FAULT);
+
+static DEVICE_ATTR(update_interval, S_IWUSR | S_IRUGO, show_interval,
+ set_interval);
+
+static struct attribute *lm95245_attributes[] = {
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_crit.dev_attr.attr,
+ &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_crit.dev_attr.attr,
+ &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_type.dev_attr.attr,
+ &sensor_dev_attr_temp2_fault.dev_attr.attr,
+ &dev_attr_update_interval.attr,
+ NULL
+};
+
+static const struct attribute_group lm95245_group = {
+ .attrs = lm95245_attributes,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm95245_detect(struct i2c_client *new_client,
+ struct i2c_board_info *info)
+{
+ struct i2c_adapter *adapter = new_client->adapter;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+
+ if (i2c_smbus_read_byte_data(new_client, LM95245_REG_R_MAN_ID)
+ != MANUFACTURER_ID
+ || i2c_smbus_read_byte_data(new_client, LM95245_REG_R_CHIP_ID)
+ != DEFAULT_REVISION)
+ return -ENODEV;
+
+ strlcpy(info->type, DEVNAME, I2C_NAME_SIZE);
+ return 0;
+}
+
+static void lm95245_init_client(struct i2c_client *client)
+{
+ struct lm95245_data *data = i2c_get_clientdata(client);
+
+ data->valid = 0;
+ data->interval = lm95245_read_conversion_rate(client);
+
+ data->config1 = i2c_smbus_read_byte_data(client,
+ LM95245_REG_RW_CONFIG1);
+ data->config2 = i2c_smbus_read_byte_data(client,
+ LM95245_REG_RW_CONFIG2);
+
+ if (data->config1 & CFG_STOP) {
+ /* Clear the standby bit */
+ data->config1 &= ~CFG_STOP;
+ i2c_smbus_write_byte_data(client, LM95245_REG_RW_CONFIG1,
+ data->config1);
+ }
+}
+
+static int lm95245_probe(struct i2c_client *new_client,
+ const struct i2c_device_id *id)
+{
+ struct lm95245_data *data;
+ int err;
+
+ data = kzalloc(sizeof(struct lm95245_data), GFP_KERNEL);
+ if (!data) {
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ i2c_set_clientdata(new_client, data);
+ mutex_init(&data->update_lock);
+
+ /* Initialize the LM95245 chip */
+ lm95245_init_client(new_client);
+
+ /* Register sysfs hooks */
+ err = sysfs_create_group(&new_client->dev.kobj, &lm95245_group);
+ if (err)
+ goto exit_free;
+
+ data->hwmon_dev = hwmon_device_register(&new_client->dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ err = PTR_ERR(data->hwmon_dev);
+ goto exit_remove_files;
+ }
+
+ return 0;
+
+exit_remove_files:
+ sysfs_remove_group(&new_client->dev.kobj, &lm95245_group);
+exit_free:
+ kfree(data);
+exit:
+ return err;
+}
+
+static int lm95245_remove(struct i2c_client *client)
+{
+ struct lm95245_data *data = i2c_get_clientdata(client);
+
+ hwmon_device_unregister(data->hwmon_dev);
+ sysfs_remove_group(&client->dev.kobj, &lm95245_group);
+
+ kfree(data);
+ return 0;
+}
+
+/* Driver data (common to all clients) */
+static const struct i2c_device_id lm95245_id[] = {
+ { DEVNAME, 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, lm95245_id);
+
+static struct i2c_driver lm95245_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = DEVNAME,
+ },
+ .probe = lm95245_probe,
+ .remove = lm95245_remove,
+ .id_table = lm95245_id,
+ .detect = lm95245_detect,
+ .address_list = normal_i2c,
+};
+
+static int __init sensors_lm95245_init(void)
+{
+ return i2c_add_driver(&lm95245_driver);
+}
+
+static void __exit sensors_lm95245_exit(void)
+{
+ i2c_del_driver(&lm95245_driver);
+}
+
+MODULE_AUTHOR("Alexander Stein <alexander.stein@systec-electronic.com>");
+MODULE_DESCRIPTION("LM95245 sensor driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm95245_init);
+module_exit(sensors_lm95245_exit);
diff --git a/drivers/hwmon/max16065.c b/drivers/hwmon/max16065.c
index d94a24fdf4b..dd2d7b9620c 100644
--- a/drivers/hwmon/max16065.c
+++ b/drivers/hwmon/max16065.c
@@ -124,7 +124,7 @@ static inline int MV_TO_LIMIT(int mv, int range)
static inline int ADC_TO_CURR(int adc, int gain)
{
- return adc * 1400000 / gain * 255;
+ return adc * 1400000 / (gain * 255);
}
/*
diff --git a/drivers/hwmon/max1668.c b/drivers/hwmon/max1668.c
new file mode 100644
index 00000000000..20d1b2ddffb
--- /dev/null
+++ b/drivers/hwmon/max1668.c
@@ -0,0 +1,502 @@
+/*
+ Copyright (c) 2011 David George <david.george@ska.ac.za>
+
+ based on adm1021.c
+ some credit to Christoph Scheurer, but largely a rewrite
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* Addresses to scan */
+static unsigned short max1668_addr_list[] = {
+ 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
+
+/* max1668 registers */
+
+#define MAX1668_REG_TEMP(nr) (nr)
+#define MAX1668_REG_STAT1 0x05
+#define MAX1668_REG_STAT2 0x06
+#define MAX1668_REG_MAN_ID 0xfe
+#define MAX1668_REG_DEV_ID 0xff
+
+/* limits */
+
+/* write high limits */
+#define MAX1668_REG_LIMH_WR(nr) (0x13 + 2 * (nr))
+/* write low limits */
+#define MAX1668_REG_LIML_WR(nr) (0x14 + 2 * (nr))
+/* read high limits */
+#define MAX1668_REG_LIMH_RD(nr) (0x08 + 2 * (nr))
+/* read low limits */
+#define MAX1668_REG_LIML_RD(nr) (0x09 + 2 * (nr))
+
+/* manufacturer and device ID Constants */
+#define MAN_ID_MAXIM 0x4d
+#define DEV_ID_MAX1668 0x3
+#define DEV_ID_MAX1805 0x5
+#define DEV_ID_MAX1989 0xb
+
+/* read only mode module parameter */
+static int read_only;
+module_param(read_only, bool, 0);
+MODULE_PARM_DESC(read_only, "Don't set any values, read only mode");
+
+enum chips { max1668, max1805, max1989 };
+
+struct max1668_data {
+ struct device *hwmon_dev;
+ enum chips type;
+
+ struct mutex update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ /* 1x local and 4x remote */
+ s8 temp_max[5];
+ s8 temp_min[5];
+ s8 temp[5];
+ u16 alarms;
+};
+
+static struct max1668_data *max1668_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct max1668_data *data = i2c_get_clientdata(client);
+ struct max1668_data *ret = data;
+ s32 val;
+ int i;
+
+ mutex_lock(&data->update_lock);
+
+ if (data->valid && !time_after(jiffies,
+ data->last_updated + HZ + HZ / 2))
+ goto abort;
+
+ for (i = 0; i < 5; i++) {
+ val = i2c_smbus_read_byte_data(client, MAX1668_REG_TEMP(i));
+ if (unlikely(val < 0)) {
+ ret = ERR_PTR(val);
+ goto abort;
+ }
+ data->temp[i] = (s8) val;
+
+ val = i2c_smbus_read_byte_data(client, MAX1668_REG_LIMH_RD(i));
+ if (unlikely(val < 0)) {
+ ret = ERR_PTR(val);
+ goto abort;
+ }
+ data->temp_max[i] = (s8) val;
+
+ val = i2c_smbus_read_byte_data(client, MAX1668_REG_LIML_RD(i));
+ if (unlikely(val < 0)) {
+ ret = ERR_PTR(val);
+ goto abort;
+ }
+ data->temp_min[i] = (s8) val;
+ }
+
+ val = i2c_smbus_read_byte_data(client, MAX1668_REG_STAT1);
+ if (unlikely(val < 0)) {
+ ret = ERR_PTR(val);
+ goto abort;
+ }
+ data->alarms = val << 8;
+
+ val = i2c_smbus_read_byte_data(client, MAX1668_REG_STAT2);
+ if (unlikely(val < 0)) {
+ ret = ERR_PTR(val);
+ goto abort;
+ }
+ data->alarms |= val;
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+abort:
+ mutex_unlock(&data->update_lock);
+
+ return ret;
+}
+
+static ssize_t show_temp(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ struct max1668_data *data = max1668_update_device(dev);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ return sprintf(buf, "%d\n", data->temp[index] * 1000);
+}
+
+static ssize_t show_temp_max(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ struct max1668_data *data = max1668_update_device(dev);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ return sprintf(buf, "%d\n", data->temp_max[index] * 1000);
+}
+
+static ssize_t show_temp_min(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ struct max1668_data *data = max1668_update_device(dev);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ return sprintf(buf, "%d\n", data->temp_min[index] * 1000);
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct max1668_data *data = max1668_update_device(dev);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ return sprintf(buf, "%u\n", (data->alarms >> index) & 0x1);
+}
+
+static ssize_t show_fault(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ struct max1668_data *data = max1668_update_device(dev);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ return sprintf(buf, "%u\n",
+ (data->alarms & (1 << 12)) && data->temp[index] == 127);
+}
+
+static ssize_t set_temp_max(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct max1668_data *data = i2c_get_clientdata(client);
+ long temp;
+ int ret;
+
+ ret = kstrtol(buf, 10, &temp);
+ if (ret < 0)
+ return ret;
+
+ mutex_lock(&data->update_lock);
+ data->temp_max[index] = SENSORS_LIMIT(temp/1000, -128, 127);
+ if (i2c_smbus_write_byte_data(client,
+ MAX1668_REG_LIMH_WR(index),
+ data->temp_max[index]))
+ count = -EIO;
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t set_temp_min(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct max1668_data *data = i2c_get_clientdata(client);
+ long temp;
+ int ret;
+
+ ret = kstrtol(buf, 10, &temp);
+ if (ret < 0)
+ return ret;
+
+ mutex_lock(&data->update_lock);
+ data->temp_min[index] = SENSORS_LIMIT(temp/1000, -128, 127);
+ if (i2c_smbus_write_byte_data(client,
+ MAX1668_REG_LIML_WR(index),
+ data->temp_max[index]))
+ count = -EIO;
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp_max,
+ set_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp_min,
+ set_temp_min, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO, show_temp_max,
+ set_temp_max, 1);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IRUGO, show_temp_min,
+ set_temp_min, 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO, show_temp_max,
+ set_temp_max, 2);
+static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO, show_temp_min,
+ set_temp_min, 2);
+static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO, show_temp_max,
+ set_temp_max, 3);
+static SENSOR_DEVICE_ATTR(temp4_min, S_IRUGO, show_temp_min,
+ set_temp_min, 3);
+static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp5_max, S_IRUGO, show_temp_max,
+ set_temp_max, 4);
+static SENSOR_DEVICE_ATTR(temp5_min, S_IRUGO, show_temp_min,
+ set_temp_min, 4);
+
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 14);
+static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 13);
+static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp4_min_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp4_max_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp5_min_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp5_max_alarm, S_IRUGO, show_alarm, NULL, 0);
+
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_fault, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_fault, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp4_fault, S_IRUGO, show_fault, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp5_fault, S_IRUGO, show_fault, NULL, 4);
+
+/* Attributes common to MAX1668, MAX1989 and MAX1805 */
+static struct attribute *max1668_attribute_common[] = {
+ &sensor_dev_attr_temp1_max.dev_attr.attr,
+ &sensor_dev_attr_temp1_min.dev_attr.attr,
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_max.dev_attr.attr,
+ &sensor_dev_attr_temp2_min.dev_attr.attr,
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_max.dev_attr.attr,
+ &sensor_dev_attr_temp3_min.dev_attr.attr,
+ &sensor_dev_attr_temp3_input.dev_attr.attr,
+
+ &sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
+
+ &sensor_dev_attr_temp2_fault.dev_attr.attr,
+ &sensor_dev_attr_temp3_fault.dev_attr.attr,
+ NULL
+};
+
+/* Attributes not present on MAX1805 */
+static struct attribute *max1668_attribute_unique[] = {
+ &sensor_dev_attr_temp4_max.dev_attr.attr,
+ &sensor_dev_attr_temp4_min.dev_attr.attr,
+ &sensor_dev_attr_temp4_input.dev_attr.attr,
+ &sensor_dev_attr_temp5_max.dev_attr.attr,
+ &sensor_dev_attr_temp5_min.dev_attr.attr,
+ &sensor_dev_attr_temp5_input.dev_attr.attr,
+
+ &sensor_dev_attr_temp4_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp4_min_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp5_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp5_min_alarm.dev_attr.attr,
+
+ &sensor_dev_attr_temp4_fault.dev_attr.attr,
+ &sensor_dev_attr_temp5_fault.dev_attr.attr,
+ NULL
+};
+
+static mode_t max1668_attribute_mode(struct kobject *kobj,
+ struct attribute *attr, int index)
+{
+ int ret = S_IRUGO;
+ if (read_only)
+ return ret;
+ if (attr == &sensor_dev_attr_temp1_max.dev_attr.attr ||
+ attr == &sensor_dev_attr_temp2_max.dev_attr.attr ||
+ attr == &sensor_dev_attr_temp3_max.dev_attr.attr ||
+ attr == &sensor_dev_attr_temp4_max.dev_attr.attr ||
+ attr == &sensor_dev_attr_temp5_max.dev_attr.attr ||
+ attr == &sensor_dev_attr_temp1_min.dev_attr.attr ||
+ attr == &sensor_dev_attr_temp2_min.dev_attr.attr ||
+ attr == &sensor_dev_attr_temp3_min.dev_attr.attr ||
+ attr == &sensor_dev_attr_temp4_min.dev_attr.attr ||
+ attr == &sensor_dev_attr_temp5_min.dev_attr.attr)
+ ret |= S_IWUSR;
+ return ret;
+}
+
+static const struct attribute_group max1668_group_common = {
+ .attrs = max1668_attribute_common,
+ .is_visible = max1668_attribute_mode
+};
+
+static const struct attribute_group max1668_group_unique = {
+ .attrs = max1668_attribute_unique,
+ .is_visible = max1668_attribute_mode
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int max1668_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
+{
+ struct i2c_adapter *adapter = client->adapter;
+ const char *type_name;
+ int man_id, dev_id;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+
+ /* Check for unsupported part */
+ man_id = i2c_smbus_read_byte_data(client, MAX1668_REG_MAN_ID);
+ if (man_id != MAN_ID_MAXIM)
+ return -ENODEV;
+
+ dev_id = i2c_smbus_read_byte_data(client, MAX1668_REG_DEV_ID);
+ if (dev_id < 0)
+ return -ENODEV;
+
+ type_name = NULL;
+ if (dev_id == DEV_ID_MAX1668)
+ type_name = "max1668";
+ else if (dev_id == DEV_ID_MAX1805)
+ type_name = "max1805";
+ else if (dev_id == DEV_ID_MAX1989)
+ type_name = "max1989";
+
+ if (!type_name)
+ return -ENODEV;
+
+ strlcpy(info->type, type_name, I2C_NAME_SIZE);
+
+ return 0;
+}
+
+static int max1668_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct i2c_adapter *adapter = client->adapter;
+ struct max1668_data *data;
+ int err;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+
+ data = kzalloc(sizeof(struct max1668_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, data);
+ data->type = id->driver_data;
+ mutex_init(&data->update_lock);
+
+ /* Register sysfs hooks */
+ err = sysfs_create_group(&client->dev.kobj, &max1668_group_common);
+ if (err)
+ goto error_free;
+
+ if (data->type == max1668 || data->type == max1989) {
+ err = sysfs_create_group(&client->dev.kobj,
+ &max1668_group_unique);
+ if (err)
+ goto error_sysrem0;
+ }
+
+ data->hwmon_dev = hwmon_device_register(&client->dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ err = PTR_ERR(data->hwmon_dev);
+ goto error_sysrem1;
+ }
+
+ return 0;
+
+error_sysrem1:
+ if (data->type == max1668 || data->type == max1989)
+ sysfs_remove_group(&client->dev.kobj, &max1668_group_unique);
+error_sysrem0:
+ sysfs_remove_group(&client->dev.kobj, &max1668_group_common);
+error_free:
+ kfree(data);
+ return err;
+}
+
+static int max1668_remove(struct i2c_client *client)
+{
+ struct max1668_data *data = i2c_get_clientdata(client);
+
+ hwmon_device_unregister(data->hwmon_dev);
+ if (data->type == max1668 || data->type == max1989)
+ sysfs_remove_group(&client->dev.kobj, &max1668_group_unique);
+
+ sysfs_remove_group(&client->dev.kobj, &max1668_group_common);
+
+ kfree(data);
+ return 0;
+}
+
+static const struct i2c_device_id max1668_id[] = {
+ { "max1668", max1668 },
+ { "max1805", max1805 },
+ { "max1989", max1989 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max1668_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver max1668_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "max1668",
+ },
+ .probe = max1668_probe,
+ .remove = max1668_remove,
+ .id_table = max1668_id,
+ .detect = max1668_detect,
+ .address_list = max1668_addr_list,
+};
+
+static int __init sensors_max1668_init(void)
+{
+ return i2c_add_driver(&max1668_driver);
+}
+
+static void __exit sensors_max1668_exit(void)
+{
+ i2c_del_driver(&max1668_driver);
+}
+
+MODULE_AUTHOR("David George <david.george@ska.ac.za>");
+MODULE_DESCRIPTION("MAX1668 remote temperature sensor driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_max1668_init)
+module_exit(sensors_max1668_exit)
diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c
new file mode 100644
index 00000000000..eab11615dce
--- /dev/null
+++ b/drivers/hwmon/ntc_thermistor.c
@@ -0,0 +1,452 @@
+/*
+ * ntc_thermistor.c - NTC Thermistors
+ *
+ * Copyright (C) 2010 Samsung Electronics
+ * MyungJoo Ham <myungjoo.ham@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/math64.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+
+#include <linux/platform_data/ntc_thermistor.h>
+
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+
+struct ntc_compensation {
+ int temp_C;
+ unsigned int ohm;
+};
+
+/*
+ * A compensation table should be sorted by the values of .ohm
+ * in descending order.
+ * The following compensation tables are from the specification of Murata NTC
+ * Thermistors Datasheet
+ */
+const struct ntc_compensation ncpXXwb473[] = {
+ { .temp_C = -40, .ohm = 1747920 },
+ { .temp_C = -35, .ohm = 1245428 },
+ { .temp_C = -30, .ohm = 898485 },
+ { .temp_C = -25, .ohm = 655802 },
+ { .temp_C = -20, .ohm = 483954 },
+ { .temp_C = -15, .ohm = 360850 },
+ { .temp_C = -10, .ohm = 271697 },
+ { .temp_C = -5, .ohm = 206463 },
+ { .temp_C = 0, .ohm = 158214 },
+ { .temp_C = 5, .ohm = 122259 },
+ { .temp_C = 10, .ohm = 95227 },
+ { .temp_C = 15, .ohm = 74730 },
+ { .temp_C = 20, .ohm = 59065 },
+ { .temp_C = 25, .ohm = 47000 },
+ { .temp_C = 30, .ohm = 37643 },
+ { .temp_C = 35, .ohm = 30334 },
+ { .temp_C = 40, .ohm = 24591 },
+ { .temp_C = 45, .ohm = 20048 },
+ { .temp_C = 50, .ohm = 16433 },
+ { .temp_C = 55, .ohm = 13539 },
+ { .temp_C = 60, .ohm = 11209 },
+ { .temp_C = 65, .ohm = 9328 },
+ { .temp_C = 70, .ohm = 7798 },
+ { .temp_C = 75, .ohm = 6544 },
+ { .temp_C = 80, .ohm = 5518 },
+ { .temp_C = 85, .ohm = 4674 },
+ { .temp_C = 90, .ohm = 3972 },
+ { .temp_C = 95, .ohm = 3388 },
+ { .temp_C = 100, .ohm = 2902 },
+ { .temp_C = 105, .ohm = 2494 },
+ { .temp_C = 110, .ohm = 2150 },
+ { .temp_C = 115, .ohm = 1860 },
+ { .temp_C = 120, .ohm = 1615 },
+ { .temp_C = 125, .ohm = 1406 },
+};
+const struct ntc_compensation ncpXXwl333[] = {
+ { .temp_C = -40, .ohm = 1610154 },
+ { .temp_C = -35, .ohm = 1130850 },
+ { .temp_C = -30, .ohm = 802609 },
+ { .temp_C = -25, .ohm = 575385 },
+ { .temp_C = -20, .ohm = 416464 },
+ { .temp_C = -15, .ohm = 304219 },
+ { .temp_C = -10, .ohm = 224193 },
+ { .temp_C = -5, .ohm = 166623 },
+ { .temp_C = 0, .ohm = 124850 },
+ { .temp_C = 5, .ohm = 94287 },
+ { .temp_C = 10, .ohm = 71747 },
+ { .temp_C = 15, .ohm = 54996 },
+ { .temp_C = 20, .ohm = 42455 },
+ { .temp_C = 25, .ohm = 33000 },
+ { .temp_C = 30, .ohm = 25822 },
+ { .temp_C = 35, .ohm = 20335 },
+ { .temp_C = 40, .ohm = 16115 },
+ { .temp_C = 45, .ohm = 12849 },
+ { .temp_C = 50, .ohm = 10306 },
+ { .temp_C = 55, .ohm = 8314 },
+ { .temp_C = 60, .ohm = 6746 },
+ { .temp_C = 65, .ohm = 5503 },
+ { .temp_C = 70, .ohm = 4513 },
+ { .temp_C = 75, .ohm = 3721 },
+ { .temp_C = 80, .ohm = 3084 },
+ { .temp_C = 85, .ohm = 2569 },
+ { .temp_C = 90, .ohm = 2151 },
+ { .temp_C = 95, .ohm = 1809 },
+ { .temp_C = 100, .ohm = 1529 },
+ { .temp_C = 105, .ohm = 1299 },
+ { .temp_C = 110, .ohm = 1108 },
+ { .temp_C = 115, .ohm = 949 },
+ { .temp_C = 120, .ohm = 817 },
+ { .temp_C = 125, .ohm = 707 },
+};
+
+struct ntc_data {
+ struct device *hwmon_dev;
+ struct ntc_thermistor_platform_data *pdata;
+ const struct ntc_compensation *comp;
+ struct device *dev;
+ int n_comp;
+ char name[PLATFORM_NAME_SIZE];
+};
+
+static inline u64 div64_u64_safe(u64 dividend, u64 divisor)
+{
+ if (divisor == 0 && dividend == 0)
+ return 0;
+ if (divisor == 0)
+ return UINT_MAX;
+ return div64_u64(dividend, divisor);
+}
+
+static unsigned int get_ohm_of_thermistor(struct ntc_data *data,
+ unsigned int uV)
+{
+ struct ntc_thermistor_platform_data *pdata = data->pdata;
+ u64 mV = uV / 1000;
+ u64 pmV = pdata->pullup_uV / 1000;
+ u64 N, puO, pdO;
+ puO = pdata->pullup_ohm;
+ pdO = pdata->pulldown_ohm;
+
+ if (mV == 0) {
+ if (pdata->connect == NTC_CONNECTED_POSITIVE)
+ return UINT_MAX;
+ return 0;
+ }
+ if (mV >= pmV)
+ return (pdata->connect == NTC_CONNECTED_POSITIVE) ?
+ 0 : UINT_MAX;
+
+ if (pdata->connect == NTC_CONNECTED_POSITIVE && puO == 0)
+ N = div64_u64_safe(pdO * (pmV - mV), mV);
+ else if (pdata->connect == NTC_CONNECTED_GROUND && pdO == 0)
+ N = div64_u64_safe(puO * mV, pmV - mV);
+ else if (pdata->connect == NTC_CONNECTED_POSITIVE)
+ N = div64_u64_safe(pdO * puO * (pmV - mV),
+ puO * mV - pdO * (pmV - mV));
+ else
+ N = div64_u64_safe(pdO * puO * mV, pdO * (pmV - mV) - puO * mV);
+
+ return (unsigned int) N;
+}
+
+static int lookup_comp(struct ntc_data *data,
+ unsigned int ohm, int *i_low, int *i_high)
+{
+ int start, end, mid = -1;
+
+ /* Do a binary search on compensation table */
+ start = 0;
+ end = data->n_comp;
+
+ while (end > start) {
+ mid = start + (end - start) / 2;
+ if (data->comp[mid].ohm < ohm)
+ end = mid;
+ else if (data->comp[mid].ohm > ohm)
+ start = mid + 1;
+ else
+ break;
+ }
+
+ if (mid == 0) {
+ if (data->comp[mid].ohm > ohm) {
+ *i_high = mid;
+ *i_low = mid + 1;
+ return 0;
+ } else {
+ *i_low = mid;
+ *i_high = -1;
+ return -EINVAL;
+ }
+ }
+ if (mid == (data->n_comp - 1)) {
+ if (data->comp[mid].ohm <= ohm) {
+ *i_low = mid;
+ *i_high = mid - 1;
+ return 0;
+ } else {
+ *i_low = -1;
+ *i_high = mid;
+ return -EINVAL;
+ }
+ }
+
+ if (data->comp[mid].ohm <= ohm) {
+ *i_low = mid;
+ *i_high = mid - 1;
+ } else {
+ *i_low = mid + 1;
+ *i_high = mid;
+ }
+
+ return 0;
+}
+
+static int get_temp_mC(struct ntc_data *data, unsigned int ohm, int *temp)
+{
+ int low, high;
+ int ret;
+
+ ret = lookup_comp(data, ohm, &low, &high);
+ if (ret) {
+ /* Unable to use linear approximation */
+ if (low != -1)
+ *temp = data->comp[low].temp_C * 1000;
+ else if (high != -1)
+ *temp = data->comp[high].temp_C * 1000;
+ else
+ return ret;
+ } else {
+ *temp = data->comp[low].temp_C * 1000 +
+ ((data->comp[high].temp_C - data->comp[low].temp_C) *
+ 1000 * ((int)ohm - (int)data->comp[low].ohm)) /
+ ((int)data->comp[high].ohm - (int)data->comp[low].ohm);
+ }
+
+ return 0;
+}
+
+static int ntc_thermistor_read(struct ntc_data *data, int *temp)
+{
+ int ret;
+ int read_ohm, read_uV;
+ unsigned int ohm = 0;
+
+ if (data->pdata->read_ohm) {
+ read_ohm = data->pdata->read_ohm();
+ if (read_ohm < 0)
+ return read_ohm;
+ ohm = (unsigned int)read_ohm;
+ }
+
+ if (data->pdata->read_uV) {
+ read_uV = data->pdata->read_uV();
+ if (read_uV < 0)
+ return read_uV;
+ ohm = get_ohm_of_thermistor(data, (unsigned int)read_uV);
+ }
+
+ ret = get_temp_mC(data, ohm, temp);
+ if (ret) {
+ dev_dbg(data->dev, "Sensor reading function not available.\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static ssize_t ntc_show_name(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ntc_data *data = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%s\n", data->name);
+}
+
+static ssize_t ntc_show_type(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "4\n");
+}
+
+static ssize_t ntc_show_temp(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ntc_data *data = dev_get_drvdata(dev);
+ int temp, ret;
+
+ ret = ntc_thermistor_read(data, &temp);
+ if (ret)
+ return ret;
+ return sprintf(buf, "%d\n", temp);
+}
+
+static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, ntc_show_type, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, ntc_show_temp, NULL, 0);
+static DEVICE_ATTR(name, S_IRUGO, ntc_show_name, NULL);
+
+static struct attribute *ntc_attributes[] = {
+ &dev_attr_name.attr,
+ &sensor_dev_attr_temp1_type.dev_attr.attr,
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group ntc_attr_group = {
+ .attrs = ntc_attributes,
+};
+
+static int __devinit ntc_thermistor_probe(struct platform_device *pdev)
+{
+ struct ntc_data *data;
+ struct ntc_thermistor_platform_data *pdata = pdev->dev.platform_data;
+ int ret = 0;
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "No platform init data supplied.\n");
+ return -ENODEV;
+ }
+
+ /* Either one of the two is required. */
+ if (!pdata->read_uV && !pdata->read_ohm) {
+ dev_err(&pdev->dev, "Both read_uV and read_ohm missing."
+ "Need either one of the two.\n");
+ return -EINVAL;
+ }
+
+ if (pdata->read_uV && pdata->read_ohm) {
+ dev_warn(&pdev->dev, "Only one of read_uV and read_ohm "
+ "is needed; ignoring read_uV.\n");
+ pdata->read_uV = NULL;
+ }
+
+ if (pdata->read_uV && (pdata->pullup_uV == 0 ||
+ (pdata->pullup_ohm == 0 && pdata->connect ==
+ NTC_CONNECTED_GROUND) ||
+ (pdata->pulldown_ohm == 0 && pdata->connect ==
+ NTC_CONNECTED_POSITIVE) ||
+ (pdata->connect != NTC_CONNECTED_POSITIVE &&
+ pdata->connect != NTC_CONNECTED_GROUND))) {
+ dev_err(&pdev->dev, "Required data to use read_uV not "
+ "supplied.\n");
+ return -EINVAL;
+ }
+
+ data = kzalloc(sizeof(struct ntc_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->dev = &pdev->dev;
+ data->pdata = pdata;
+ strncpy(data->name, pdev->id_entry->name, PLATFORM_NAME_SIZE);
+
+ switch (pdev->id_entry->driver_data) {
+ case TYPE_NCPXXWB473:
+ data->comp = ncpXXwb473;
+ data->n_comp = ARRAY_SIZE(ncpXXwb473);
+ break;
+ case TYPE_NCPXXWL333:
+ data->comp = ncpXXwl333;
+ data->n_comp = ARRAY_SIZE(ncpXXwl333);
+ break;
+ default:
+ dev_err(&pdev->dev, "Unknown device type: %lu(%s)\n",
+ pdev->id_entry->driver_data,
+ pdev->id_entry->name);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ platform_set_drvdata(pdev, data);
+
+ ret = sysfs_create_group(&data->dev->kobj, &ntc_attr_group);
+ if (ret) {
+ dev_err(data->dev, "unable to create sysfs files\n");
+ goto err;
+ }
+
+ data->hwmon_dev = hwmon_device_register(data->dev);
+ if (IS_ERR_OR_NULL(data->hwmon_dev)) {
+ dev_err(data->dev, "unable to register as hwmon device.\n");
+ ret = -EINVAL;
+ goto err_after_sysfs;
+ }
+
+ dev_info(&pdev->dev, "Thermistor %s:%d (type: %s/%lu) successfully probed.\n",
+ pdev->name, pdev->id, pdev->id_entry->name,
+ pdev->id_entry->driver_data);
+ return 0;
+err_after_sysfs:
+ sysfs_remove_group(&data->dev->kobj, &ntc_attr_group);
+err:
+ kfree(data);
+ return ret;
+}
+
+static int __devexit ntc_thermistor_remove(struct platform_device *pdev)
+{
+ struct ntc_data *data = platform_get_drvdata(pdev);
+
+ hwmon_device_unregister(data->hwmon_dev);
+ sysfs_remove_group(&data->dev->kobj, &ntc_attr_group);
+ platform_set_drvdata(pdev, NULL);
+
+ kfree(data);
+
+ return 0;
+}
+
+static const struct platform_device_id ntc_thermistor_id[] = {
+ { "ncp15wb473", TYPE_NCPXXWB473 },
+ { "ncp18wb473", TYPE_NCPXXWB473 },
+ { "ncp21wb473", TYPE_NCPXXWB473 },
+ { "ncp03wb473", TYPE_NCPXXWB473 },
+ { "ncp15wl333", TYPE_NCPXXWL333 },
+ { },
+};
+
+static struct platform_driver ntc_thermistor_driver = {
+ .driver = {
+ .name = "ntc-thermistor",
+ .owner = THIS_MODULE,
+ },
+ .probe = ntc_thermistor_probe,
+ .remove = __devexit_p(ntc_thermistor_remove),
+ .id_table = ntc_thermistor_id,
+};
+
+static int __init ntc_thermistor_init(void)
+{
+ return platform_driver_register(&ntc_thermistor_driver);
+}
+
+module_init(ntc_thermistor_init);
+
+static void __exit ntc_thermistor_cleanup(void)
+{
+ platform_driver_unregister(&ntc_thermistor_driver);
+}
+
+module_exit(ntc_thermistor_cleanup);
+
+MODULE_DESCRIPTION("NTC Thermistor Driver");
+MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ntc-thermistor");
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
new file mode 100644
index 00000000000..c9237b9dcff
--- /dev/null
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -0,0 +1,100 @@
+#
+# PMBus chip drivers configuration
+#
+
+menuconfig PMBUS
+ tristate "PMBus support"
+ depends on I2C && EXPERIMENTAL
+ default n
+ help
+ Say yes here if you want to enable PMBus support.
+
+ This driver can also be built as a module. If so, the module will
+ be called pmbus_core.
+
+if PMBUS
+
+config SENSORS_PMBUS
+ tristate "Generic PMBus devices"
+ default y
+ help
+ If you say yes here you get hardware monitoring support for generic
+ PMBus devices, including but not limited to ADP4000, BMR450, BMR451,
+ BMR453, BMR454, LTC2978, NCP4200, and NCP4208.
+
+ This driver can also be built as a module. If so, the module will
+ be called pmbus.
+
+config SENSORS_ADM1275
+ tristate "Analog Devices ADM1275"
+ default n
+ help
+ If you say yes here you get hardware monitoring support for Analog
+ Devices ADM1275 Hot-Swap Controller and Digital Power Monitor.
+
+ This driver can also be built as a module. If so, the module will
+ be called adm1275.
+
+config SENSORS_LM25066
+ tristate "National Semiconductor LM25066 and compatibles"
+ default n
+ help
+ If you say yes here you get hardware monitoring support for National
+ Semiconductor LM25066, LM5064, and LM5066.
+
+ This driver can also be built as a module. If so, the module will
+ be called lm25066.
+
+config SENSORS_MAX16064
+ tristate "Maxim MAX16064"
+ default n
+ help
+ If you say yes here you get hardware monitoring support for Maxim
+ MAX16064.
+
+ This driver can also be built as a module. If so, the module will
+ be called max16064.
+
+config SENSORS_MAX34440
+ tristate "Maxim MAX34440/MAX34441"
+ default n
+ help
+ If you say yes here you get hardware monitoring support for Maxim
+ MAX34440 and MAX34441.
+
+ This driver can also be built as a module. If so, the module will
+ be called max34440.
+
+config SENSORS_MAX8688
+ tristate "Maxim MAX8688"
+ default n
+ help
+ If you say yes here you get hardware monitoring support for Maxim
+ MAX8688.
+
+ This driver can also be built as a module. If so, the module will
+ be called max8688.
+
+config SENSORS_UCD9000
+ tristate "TI UCD90120, UCD90124, UCD9090, UCD90910"
+ default n
+ help
+ If you say yes here you get hardware monitoring support for TI
+ UCD90120, UCD90124, UCD9090, UCD90910 Sequencer and System Health
+ Controllers.
+
+ This driver can also be built as a module. If so, the module will
+ be called ucd9000.
+
+config SENSORS_UCD9200
+ tristate "TI UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, UCD9248"
+ default n
+ help
+ If you say yes here you get hardware monitoring support for TI
+ UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and UCD9248
+ Digital PWM System Controllers.
+
+ This driver can also be built as a module. If so, the module will
+ be called ucd9200.
+
+endif # PMBUS
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
new file mode 100644
index 00000000000..623eedb1ed9
--- /dev/null
+++ b/drivers/hwmon/pmbus/Makefile
@@ -0,0 +1,13 @@
+#
+# Makefile for PMBus chip drivers.
+#
+
+obj-$(CONFIG_PMBUS) += pmbus_core.o
+obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o
+obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o
+obj-$(CONFIG_SENSORS_LM25066) += lm25066.o
+obj-$(CONFIG_SENSORS_MAX16064) += max16064.o
+obj-$(CONFIG_SENSORS_MAX34440) += max34440.o
+obj-$(CONFIG_SENSORS_MAX8688) += max8688.o
+obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
+obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
diff --git a/drivers/hwmon/adm1275.c b/drivers/hwmon/pmbus/adm1275.c
index 8bc1bd66372..c936e278230 100644
--- a/drivers/hwmon/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -23,11 +23,68 @@
#include <linux/i2c.h>
#include "pmbus.h"
+#define ADM1275_PEAK_IOUT 0xd0
+#define ADM1275_PEAK_VIN 0xd1
+#define ADM1275_PEAK_VOUT 0xd2
#define ADM1275_PMON_CONFIG 0xd4
#define ADM1275_VIN_VOUT_SELECT (1 << 6)
#define ADM1275_VRANGE (1 << 5)
+static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
+{
+ int ret;
+
+ if (page)
+ return -EINVAL;
+
+ switch (reg) {
+ case PMBUS_VIRT_READ_IOUT_MAX:
+ ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_IOUT);
+ break;
+ case PMBUS_VIRT_READ_VOUT_MAX:
+ ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_VOUT);
+ break;
+ case PMBUS_VIRT_READ_VIN_MAX:
+ ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_VIN);
+ break;
+ case PMBUS_VIRT_RESET_IOUT_HISTORY:
+ case PMBUS_VIRT_RESET_VOUT_HISTORY:
+ case PMBUS_VIRT_RESET_VIN_HISTORY:
+ ret = 0;
+ break;
+ default:
+ ret = -ENODATA;
+ break;
+ }
+ return ret;
+}
+
+static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
+ u16 word)
+{
+ int ret;
+
+ if (page)
+ return -EINVAL;
+
+ switch (reg) {
+ case PMBUS_VIRT_RESET_IOUT_HISTORY:
+ ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_IOUT, 0);
+ break;
+ case PMBUS_VIRT_RESET_VOUT_HISTORY:
+ ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VOUT, 0);
+ break;
+ case PMBUS_VIRT_RESET_VIN_HISTORY:
+ ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VIN, 0);
+ break;
+ default:
+ ret = -ENODATA;
+ break;
+ }
+ return ret;
+}
+
static int adm1275_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -50,14 +107,17 @@ static int adm1275_probe(struct i2c_client *client,
}
info->pages = 1;
- info->direct[PSC_VOLTAGE_IN] = true;
- info->direct[PSC_VOLTAGE_OUT] = true;
- info->direct[PSC_CURRENT_OUT] = true;
+ info->format[PSC_VOLTAGE_IN] = direct;
+ info->format[PSC_VOLTAGE_OUT] = direct;
+ info->format[PSC_CURRENT_OUT] = direct;
info->m[PSC_CURRENT_OUT] = 807;
info->b[PSC_CURRENT_OUT] = 20475;
info->R[PSC_CURRENT_OUT] = -1;
info->func[0] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
+ info->read_word_data = adm1275_read_word_data;
+ info->write_word_data = adm1275_write_word_data;
+
if (config & ADM1275_VRANGE) {
info->m[PSC_VOLTAGE_IN] = 19199;
info->b[PSC_VOLTAGE_IN] = 0;
diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c
new file mode 100644
index 00000000000..ac254fba551
--- /dev/null
+++ b/drivers/hwmon/pmbus/lm25066.c
@@ -0,0 +1,352 @@
+/*
+ * Hardware monitoring driver for LM25066 / LM5064 / LM5066
+ *
+ * Copyright (c) 2011 Ericsson AB.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+enum chips { lm25066, lm5064, lm5066 };
+
+#define LM25066_READ_VAUX 0xd0
+#define LM25066_MFR_READ_IIN 0xd1
+#define LM25066_MFR_READ_PIN 0xd2
+#define LM25066_MFR_IIN_OC_WARN_LIMIT 0xd3
+#define LM25066_MFR_PIN_OP_WARN_LIMIT 0xd4
+#define LM25066_READ_PIN_PEAK 0xd5
+#define LM25066_CLEAR_PIN_PEAK 0xd6
+#define LM25066_DEVICE_SETUP 0xd9
+#define LM25066_READ_AVG_VIN 0xdc
+#define LM25066_READ_AVG_VOUT 0xdd
+#define LM25066_READ_AVG_IIN 0xde
+#define LM25066_READ_AVG_PIN 0xdf
+
+#define LM25066_DEV_SETUP_CL (1 << 4) /* Current limit */
+
+struct lm25066_data {
+ int id;
+ struct pmbus_driver_info info;
+};
+
+#define to_lm25066_data(x) container_of(x, struct lm25066_data, info)
+
+static int lm25066_read_word_data(struct i2c_client *client, int page, int reg)
+{
+ const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+ const struct lm25066_data *data = to_lm25066_data(info);
+ int ret;
+
+ if (page > 1)
+ return -EINVAL;
+
+ /* Map READ_VAUX into READ_VOUT register on page 1 */
+ if (page == 1) {
+ switch (reg) {
+ case PMBUS_READ_VOUT:
+ ret = pmbus_read_word_data(client, 0,
+ LM25066_READ_VAUX);
+ if (ret < 0)
+ break;
+ /* Adjust returned value to match VOUT coefficients */
+ switch (data->id) {
+ case lm25066:
+ /* VOUT: 4.54 mV VAUX: 283.2 uV LSB */
+ ret = DIV_ROUND_CLOSEST(ret * 2832, 45400);
+ break;
+ case lm5064:
+ /* VOUT: 4.53 mV VAUX: 700 uV LSB */
+ ret = DIV_ROUND_CLOSEST(ret * 70, 453);
+ break;
+ case lm5066:
+ /* VOUT: 2.18 mV VAUX: 725 uV LSB */
+ ret = DIV_ROUND_CLOSEST(ret * 725, 2180);
+ break;
+ }
+ break;
+ default:
+ /* No other valid registers on page 1 */
+ ret = -EINVAL;
+ break;
+ }
+ goto done;
+ }
+
+ switch (reg) {
+ case PMBUS_READ_IIN:
+ ret = pmbus_read_word_data(client, 0, LM25066_MFR_READ_IIN);
+ break;
+ case PMBUS_READ_PIN:
+ ret = pmbus_read_word_data(client, 0, LM25066_MFR_READ_PIN);
+ break;
+ case PMBUS_IIN_OC_WARN_LIMIT:
+ ret = pmbus_read_word_data(client, 0,
+ LM25066_MFR_IIN_OC_WARN_LIMIT);
+ break;
+ case PMBUS_PIN_OP_WARN_LIMIT:
+ ret = pmbus_read_word_data(client, 0,
+ LM25066_MFR_PIN_OP_WARN_LIMIT);
+ break;
+ case PMBUS_VIRT_READ_VIN_AVG:
+ ret = pmbus_read_word_data(client, 0, LM25066_READ_AVG_VIN);
+ break;
+ case PMBUS_VIRT_READ_VOUT_AVG:
+ ret = pmbus_read_word_data(client, 0, LM25066_READ_AVG_VOUT);
+ break;
+ case PMBUS_VIRT_READ_IIN_AVG:
+ ret = pmbus_read_word_data(client, 0, LM25066_READ_AVG_IIN);
+ break;
+ case PMBUS_VIRT_READ_PIN_AVG:
+ ret = pmbus_read_word_data(client, 0, LM25066_READ_AVG_PIN);
+ break;
+ case PMBUS_VIRT_READ_PIN_MAX:
+ ret = pmbus_read_word_data(client, 0, LM25066_READ_PIN_PEAK);
+ break;
+ case PMBUS_VIRT_RESET_PIN_HISTORY:
+ ret = 0;
+ break;
+ default:
+ ret = -ENODATA;
+ break;
+ }
+done:
+ return ret;
+}
+
+static int lm25066_write_word_data(struct i2c_client *client, int page, int reg,
+ u16 word)
+{
+ int ret;
+
+ if (page > 1)
+ return -EINVAL;
+
+ switch (reg) {
+ case PMBUS_IIN_OC_WARN_LIMIT:
+ ret = pmbus_write_word_data(client, 0,
+ LM25066_MFR_IIN_OC_WARN_LIMIT,
+ word);
+ break;
+ case PMBUS_PIN_OP_WARN_LIMIT:
+ ret = pmbus_write_word_data(client, 0,
+ LM25066_MFR_PIN_OP_WARN_LIMIT,
+ word);
+ break;
+ case PMBUS_VIRT_RESET_PIN_HISTORY:
+ ret = pmbus_write_byte(client, 0, LM25066_CLEAR_PIN_PEAK);
+ break;
+ default:
+ ret = -ENODATA;
+ break;
+ }
+ return ret;
+}
+
+static int lm25066_write_byte(struct i2c_client *client, int page, u8 value)
+{
+ if (page > 1)
+ return -EINVAL;
+
+ if (page == 0)
+ return pmbus_write_byte(client, 0, value);
+
+ return 0;
+}
+
+static int lm25066_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ int config;
+ int ret;
+ struct lm25066_data *data;
+ struct pmbus_driver_info *info;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_READ_BYTE_DATA))
+ return -ENODEV;
+
+ data = kzalloc(sizeof(struct lm25066_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ config = i2c_smbus_read_byte_data(client, LM25066_DEVICE_SETUP);
+ if (config < 0) {
+ ret = config;
+ goto err_mem;
+ }
+
+ data->id = id->driver_data;
+ info = &data->info;
+
+ info->pages = 2;
+ info->format[PSC_VOLTAGE_IN] = direct;
+ info->format[PSC_VOLTAGE_OUT] = direct;
+ info->format[PSC_CURRENT_IN] = direct;
+ info->format[PSC_TEMPERATURE] = direct;
+ info->format[PSC_POWER] = direct;
+
+ info->m[PSC_TEMPERATURE] = 16;
+ info->b[PSC_TEMPERATURE] = 0;
+ info->R[PSC_TEMPERATURE] = 0;
+
+ info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT
+ | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_PIN | PMBUS_HAVE_IIN
+ | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
+ info->func[1] = PMBUS_HAVE_VOUT;
+
+ info->read_word_data = lm25066_read_word_data;
+ info->write_word_data = lm25066_write_word_data;
+ info->write_byte = lm25066_write_byte;
+
+ switch (id->driver_data) {
+ case lm25066:
+ info->m[PSC_VOLTAGE_IN] = 22070;
+ info->b[PSC_VOLTAGE_IN] = 0;
+ info->R[PSC_VOLTAGE_IN] = -2;
+ info->m[PSC_VOLTAGE_OUT] = 22070;
+ info->b[PSC_VOLTAGE_OUT] = 0;
+ info->R[PSC_VOLTAGE_OUT] = -2;
+
+ if (config & LM25066_DEV_SETUP_CL) {
+ info->m[PSC_CURRENT_IN] = 6852;
+ info->b[PSC_CURRENT_IN] = 0;
+ info->R[PSC_CURRENT_IN] = -2;
+ info->m[PSC_POWER] = 369;
+ info->b[PSC_POWER] = 0;
+ info->R[PSC_POWER] = -2;
+ } else {
+ info->m[PSC_CURRENT_IN] = 13661;
+ info->b[PSC_CURRENT_IN] = 0;
+ info->R[PSC_CURRENT_IN] = -2;
+ info->m[PSC_POWER] = 736;
+ info->b[PSC_POWER] = 0;
+ info->R[PSC_POWER] = -2;
+ }
+ break;
+ case lm5064:
+ info->m[PSC_VOLTAGE_IN] = 22075;
+ info->b[PSC_VOLTAGE_IN] = 0;
+ info->R[PSC_VOLTAGE_IN] = -2;
+ info->m[PSC_VOLTAGE_OUT] = 22075;
+ info->b[PSC_VOLTAGE_OUT] = 0;
+ info->R[PSC_VOLTAGE_OUT] = -2;
+
+ if (config & LM25066_DEV_SETUP_CL) {
+ info->m[PSC_CURRENT_IN] = 6713;
+ info->b[PSC_CURRENT_IN] = 0;
+ info->R[PSC_CURRENT_IN] = -2;
+ info->m[PSC_POWER] = 3619;
+ info->b[PSC_POWER] = 0;
+ info->R[PSC_POWER] = -3;
+ } else {
+ info->m[PSC_CURRENT_IN] = 13426;
+ info->b[PSC_CURRENT_IN] = 0;
+ info->R[PSC_CURRENT_IN] = -2;
+ info->m[PSC_POWER] = 7238;
+ info->b[PSC_POWER] = 0;
+ info->R[PSC_POWER] = -3;
+ }
+ break;
+ case lm5066:
+ info->m[PSC_VOLTAGE_IN] = 4587;
+ info->b[PSC_VOLTAGE_IN] = 0;
+ info->R[PSC_VOLTAGE_IN] = -2;
+ info->m[PSC_VOLTAGE_OUT] = 4587;
+ info->b[PSC_VOLTAGE_OUT] = 0;
+ info->R[PSC_VOLTAGE_OUT] = -2;
+
+ if (config & LM25066_DEV_SETUP_CL) {
+ info->m[PSC_CURRENT_IN] = 10753;
+ info->b[PSC_CURRENT_IN] = 0;
+ info->R[PSC_CURRENT_IN] = -2;
+ info->m[PSC_POWER] = 1204;
+ info->b[PSC_POWER] = 0;
+ info->R[PSC_POWER] = -3;
+ } else {
+ info->m[PSC_CURRENT_IN] = 5405;
+ info->b[PSC_CURRENT_IN] = 0;
+ info->R[PSC_CURRENT_IN] = -2;
+ info->m[PSC_POWER] = 605;
+ info->b[PSC_POWER] = 0;
+ info->R[PSC_POWER] = -3;
+ }
+ break;
+ default:
+ ret = -ENODEV;
+ goto err_mem;
+ }
+
+ ret = pmbus_do_probe(client, id, info);
+ if (ret)
+ goto err_mem;
+ return 0;
+
+err_mem:
+ kfree(data);
+ return ret;
+}
+
+static int lm25066_remove(struct i2c_client *client)
+{
+ const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+ const struct lm25066_data *data = to_lm25066_data(info);
+ int ret;
+
+ ret = pmbus_do_remove(client);
+ kfree(data);
+ return ret;
+}
+
+static const struct i2c_device_id lm25066_id[] = {
+ {"lm25066", lm25066},
+ {"lm5064", lm5064},
+ {"lm5066", lm5066},
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, lm25066_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver lm25066_driver = {
+ .driver = {
+ .name = "lm25066",
+ },
+ .probe = lm25066_probe,
+ .remove = lm25066_remove,
+ .id_table = lm25066_id,
+};
+
+static int __init lm25066_init(void)
+{
+ return i2c_add_driver(&lm25066_driver);
+}
+
+static void __exit lm25066_exit(void)
+{
+ i2c_del_driver(&lm25066_driver);
+}
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for LM25066/LM5064/LM5066");
+MODULE_LICENSE("GPL");
+module_init(lm25066_init);
+module_exit(lm25066_exit);
diff --git a/drivers/hwmon/max16064.c b/drivers/hwmon/pmbus/max16064.c
index 1d6d717060d..e50b296e8db 100644
--- a/drivers/hwmon/max16064.c
+++ b/drivers/hwmon/pmbus/max16064.c
@@ -25,11 +25,60 @@
#include <linux/i2c.h>
#include "pmbus.h"
+#define MAX16064_MFR_VOUT_PEAK 0xd4
+#define MAX16064_MFR_TEMPERATURE_PEAK 0xd6
+
+static int max16064_read_word_data(struct i2c_client *client, int page, int reg)
+{
+ int ret;
+
+ switch (reg) {
+ case PMBUS_VIRT_READ_VOUT_MAX:
+ ret = pmbus_read_word_data(client, page,
+ MAX16064_MFR_VOUT_PEAK);
+ break;
+ case PMBUS_VIRT_READ_TEMP_MAX:
+ ret = pmbus_read_word_data(client, page,
+ MAX16064_MFR_TEMPERATURE_PEAK);
+ break;
+ case PMBUS_VIRT_RESET_VOUT_HISTORY:
+ case PMBUS_VIRT_RESET_TEMP_HISTORY:
+ ret = 0;
+ break;
+ default:
+ ret = -ENODATA;
+ break;
+ }
+ return ret;
+}
+
+static int max16064_write_word_data(struct i2c_client *client, int page,
+ int reg, u16 word)
+{
+ int ret;
+
+ switch (reg) {
+ case PMBUS_VIRT_RESET_VOUT_HISTORY:
+ ret = pmbus_write_word_data(client, page,
+ MAX16064_MFR_VOUT_PEAK, 0);
+ break;
+ case PMBUS_VIRT_RESET_TEMP_HISTORY:
+ ret = pmbus_write_word_data(client, page,
+ MAX16064_MFR_TEMPERATURE_PEAK,
+ 0xffff);
+ break;
+ default:
+ ret = -ENODATA;
+ break;
+ }
+ return ret;
+}
+
static struct pmbus_driver_info max16064_info = {
.pages = 4,
- .direct[PSC_VOLTAGE_IN] = true,
- .direct[PSC_VOLTAGE_OUT] = true,
- .direct[PSC_TEMPERATURE] = true,
+ .format[PSC_VOLTAGE_IN] = direct,
+ .format[PSC_VOLTAGE_OUT] = direct,
+ .format[PSC_TEMPERATURE] = direct,
.m[PSC_VOLTAGE_IN] = 19995,
.b[PSC_VOLTAGE_IN] = 0,
.R[PSC_VOLTAGE_IN] = -1,
@@ -44,6 +93,8 @@ static struct pmbus_driver_info max16064_info = {
.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+ .read_word_data = max16064_read_word_data,
+ .write_word_data = max16064_write_word_data,
};
static int max16064_probe(struct i2c_client *client,
diff --git a/drivers/hwmon/max34440.c b/drivers/hwmon/pmbus/max34440.c
index db11e1a175b..fda621d2e45 100644
--- a/drivers/hwmon/max34440.c
+++ b/drivers/hwmon/pmbus/max34440.c
@@ -27,11 +27,70 @@
enum chips { max34440, max34441 };
+#define MAX34440_MFR_VOUT_PEAK 0xd4
+#define MAX34440_MFR_IOUT_PEAK 0xd5
+#define MAX34440_MFR_TEMPERATURE_PEAK 0xd6
+
#define MAX34440_STATUS_OC_WARN (1 << 0)
#define MAX34440_STATUS_OC_FAULT (1 << 1)
#define MAX34440_STATUS_OT_FAULT (1 << 5)
#define MAX34440_STATUS_OT_WARN (1 << 6)
+static int max34440_read_word_data(struct i2c_client *client, int page, int reg)
+{
+ int ret;
+
+ switch (reg) {
+ case PMBUS_VIRT_READ_VOUT_MAX:
+ ret = pmbus_read_word_data(client, page,
+ MAX34440_MFR_VOUT_PEAK);
+ break;
+ case PMBUS_VIRT_READ_IOUT_MAX:
+ ret = pmbus_read_word_data(client, page,
+ MAX34440_MFR_IOUT_PEAK);
+ break;
+ case PMBUS_VIRT_READ_TEMP_MAX:
+ ret = pmbus_read_word_data(client, page,
+ MAX34440_MFR_TEMPERATURE_PEAK);
+ break;
+ case PMBUS_VIRT_RESET_VOUT_HISTORY:
+ case PMBUS_VIRT_RESET_IOUT_HISTORY:
+ case PMBUS_VIRT_RESET_TEMP_HISTORY:
+ ret = 0;
+ break;
+ default:
+ ret = -ENODATA;
+ break;
+ }
+ return ret;
+}
+
+static int max34440_write_word_data(struct i2c_client *client, int page,
+ int reg, u16 word)
+{
+ int ret;
+
+ switch (reg) {
+ case PMBUS_VIRT_RESET_VOUT_HISTORY:
+ ret = pmbus_write_word_data(client, page,
+ MAX34440_MFR_VOUT_PEAK, 0);
+ break;
+ case PMBUS_VIRT_RESET_IOUT_HISTORY:
+ ret = pmbus_write_word_data(client, page,
+ MAX34440_MFR_IOUT_PEAK, 0);
+ break;
+ case PMBUS_VIRT_RESET_TEMP_HISTORY:
+ ret = pmbus_write_word_data(client, page,
+ MAX34440_MFR_TEMPERATURE_PEAK,
+ 0xffff);
+ break;
+ default:
+ ret = -ENODATA;
+ break;
+ }
+ return ret;
+}
+
static int max34440_read_byte_data(struct i2c_client *client, int page, int reg)
{
int ret;
@@ -72,10 +131,10 @@ static int max34440_read_byte_data(struct i2c_client *client, int page, int reg)
static struct pmbus_driver_info max34440_info[] = {
[max34440] = {
.pages = 14,
- .direct[PSC_VOLTAGE_IN] = true,
- .direct[PSC_VOLTAGE_OUT] = true,
- .direct[PSC_TEMPERATURE] = true,
- .direct[PSC_CURRENT_OUT] = true,
+ .format[PSC_VOLTAGE_IN] = direct,
+ .format[PSC_VOLTAGE_OUT] = direct,
+ .format[PSC_TEMPERATURE] = direct,
+ .format[PSC_CURRENT_OUT] = direct,
.m[PSC_VOLTAGE_IN] = 1,
.b[PSC_VOLTAGE_IN] = 0,
.R[PSC_VOLTAGE_IN] = 3, /* R = 0 in datasheet reflects mV */
@@ -109,14 +168,16 @@ static struct pmbus_driver_info max34440_info[] = {
.func[12] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
.func[13] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
.read_byte_data = max34440_read_byte_data,
+ .read_word_data = max34440_read_word_data,
+ .write_word_data = max34440_write_word_data,
},
[max34441] = {
.pages = 12,
- .direct[PSC_VOLTAGE_IN] = true,
- .direct[PSC_VOLTAGE_OUT] = true,
- .direct[PSC_TEMPERATURE] = true,
- .direct[PSC_CURRENT_OUT] = true,
- .direct[PSC_FAN] = true,
+ .format[PSC_VOLTAGE_IN] = direct,
+ .format[PSC_VOLTAGE_OUT] = direct,
+ .format[PSC_TEMPERATURE] = direct,
+ .format[PSC_CURRENT_OUT] = direct,
+ .format[PSC_FAN] = direct,
.m[PSC_VOLTAGE_IN] = 1,
.b[PSC_VOLTAGE_IN] = 0,
.R[PSC_VOLTAGE_IN] = 3,
@@ -150,6 +211,8 @@ static struct pmbus_driver_info max34440_info[] = {
.func[10] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
.func[11] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
.read_byte_data = max34440_read_byte_data,
+ .read_word_data = max34440_read_word_data,
+ .write_word_data = max34440_write_word_data,
},
};
diff --git a/drivers/hwmon/max8688.c b/drivers/hwmon/pmbus/max8688.c
index 7fb93f4e9f2..c3e72f1a3cf 100644
--- a/drivers/hwmon/max8688.c
+++ b/drivers/hwmon/pmbus/max8688.c
@@ -25,6 +25,9 @@
#include <linux/i2c.h>
#include "pmbus.h"
+#define MAX8688_MFR_VOUT_PEAK 0xd4
+#define MAX8688_MFR_IOUT_PEAK 0xd5
+#define MAX8688_MFR_TEMPERATURE_PEAK 0xd6
#define MAX8688_MFG_STATUS 0xd8
#define MAX8688_STATUS_OC_FAULT (1 << 4)
@@ -37,6 +40,62 @@
#define MAX8688_STATUS_OT_FAULT (1 << 13)
#define MAX8688_STATUS_OT_WARNING (1 << 14)
+static int max8688_read_word_data(struct i2c_client *client, int page, int reg)
+{
+ int ret;
+
+ if (page)
+ return -EINVAL;
+
+ switch (reg) {
+ case PMBUS_VIRT_READ_VOUT_MAX:
+ ret = pmbus_read_word_data(client, 0, MAX8688_MFR_VOUT_PEAK);
+ break;
+ case PMBUS_VIRT_READ_IOUT_MAX:
+ ret = pmbus_read_word_data(client, 0, MAX8688_MFR_IOUT_PEAK);
+ break;
+ case PMBUS_VIRT_READ_TEMP_MAX:
+ ret = pmbus_read_word_data(client, 0,
+ MAX8688_MFR_TEMPERATURE_PEAK);
+ break;
+ case PMBUS_VIRT_RESET_VOUT_HISTORY:
+ case PMBUS_VIRT_RESET_IOUT_HISTORY:
+ case PMBUS_VIRT_RESET_TEMP_HISTORY:
+ ret = 0;
+ break;
+ default:
+ ret = -ENODATA;
+ break;
+ }
+ return ret;
+}
+
+static int max8688_write_word_data(struct i2c_client *client, int page, int reg,
+ u16 word)
+{
+ int ret;
+
+ switch (reg) {
+ case PMBUS_VIRT_RESET_VOUT_HISTORY:
+ ret = pmbus_write_word_data(client, 0, MAX8688_MFR_VOUT_PEAK,
+ 0);
+ break;
+ case PMBUS_VIRT_RESET_IOUT_HISTORY:
+ ret = pmbus_write_word_data(client, 0, MAX8688_MFR_IOUT_PEAK,
+ 0);
+ break;
+ case PMBUS_VIRT_RESET_TEMP_HISTORY:
+ ret = pmbus_write_word_data(client, 0,
+ MAX8688_MFR_TEMPERATURE_PEAK,
+ 0xffff);
+ break;
+ default:
+ ret = -ENODATA;
+ break;
+ }
+ return ret;
+}
+
static int max8688_read_byte_data(struct i2c_client *client, int page, int reg)
{
int ret = 0;
@@ -91,10 +150,10 @@ static int max8688_read_byte_data(struct i2c_client *client, int page, int reg)
static struct pmbus_driver_info max8688_info = {
.pages = 1,
- .direct[PSC_VOLTAGE_IN] = true,
- .direct[PSC_VOLTAGE_OUT] = true,
- .direct[PSC_TEMPERATURE] = true,
- .direct[PSC_CURRENT_OUT] = true,
+ .format[PSC_VOLTAGE_IN] = direct,
+ .format[PSC_VOLTAGE_OUT] = direct,
+ .format[PSC_TEMPERATURE] = direct,
+ .format[PSC_CURRENT_OUT] = direct,
.m[PSC_VOLTAGE_IN] = 19995,
.b[PSC_VOLTAGE_IN] = 0,
.R[PSC_VOLTAGE_IN] = -1,
@@ -111,6 +170,8 @@ static struct pmbus_driver_info max8688_info = {
| PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT
| PMBUS_HAVE_STATUS_TEMP,
.read_byte_data = max8688_read_byte_data,
+ .read_word_data = max8688_read_word_data,
+ .write_word_data = max8688_write_word_data,
};
static int max8688_probe(struct i2c_client *client,
diff --git a/drivers/hwmon/pmbus.c b/drivers/hwmon/pmbus/pmbus.c
index 9b1f0c37ef7..73de9f1f319 100644
--- a/drivers/hwmon/pmbus.c
+++ b/drivers/hwmon/pmbus/pmbus.c
@@ -96,6 +96,8 @@ static void pmbus_find_sensor_groups(struct i2c_client *client,
static int pmbus_identify(struct i2c_client *client,
struct pmbus_driver_info *info)
{
+ int ret = 0;
+
if (!info->pages) {
/*
* Check if the PAGE command is supported. If it is,
@@ -117,6 +119,27 @@ static int pmbus_identify(struct i2c_client *client,
}
}
+ if (pmbus_check_byte_register(client, 0, PMBUS_VOUT_MODE)) {
+ int vout_mode;
+
+ vout_mode = pmbus_read_byte_data(client, 0, PMBUS_VOUT_MODE);
+ if (vout_mode >= 0 && vout_mode != 0xff) {
+ switch (vout_mode >> 5) {
+ case 0:
+ break;
+ case 1:
+ info->format[PSC_VOLTAGE_OUT] = vid;
+ break;
+ case 2:
+ info->format[PSC_VOLTAGE_OUT] = direct;
+ break;
+ default:
+ ret = -ENODEV;
+ goto abort;
+ }
+ }
+ }
+
/*
* We should check if the COEFFICIENTS register is supported.
* If it is, and the chip is configured for direct mode, we can read
@@ -125,13 +148,18 @@ static int pmbus_identify(struct i2c_client *client,
*
* To do this, we will need access to a chip which actually supports the
* COEFFICIENTS command, since the command is too complex to implement
- * without testing it.
+ * without testing it. Until then, abort if a chip configured for direct
+ * mode was detected.
*/
+ if (info->format[PSC_VOLTAGE_OUT] == direct) {
+ ret = -ENODEV;
+ goto abort;
+ }
/* Try to find sensor groups */
pmbus_find_sensor_groups(client, info);
-
- return 0;
+abort:
+ return ret;
}
static int pmbus_probe(struct i2c_client *client,
@@ -172,11 +200,14 @@ static int pmbus_remove(struct i2c_client *client)
* Use driver_data to set the number of pages supported by the chip.
*/
static const struct i2c_device_id pmbus_id[] = {
+ {"adp4000", 1},
{"bmr450", 1},
{"bmr451", 1},
{"bmr453", 1},
{"bmr454", 1},
{"ltc2978", 8},
+ {"ncp4200", 1},
+ {"ncp4208", 1},
{"pmbus", 0},
{}
};
diff --git a/drivers/hwmon/pmbus.h b/drivers/hwmon/pmbus/pmbus.h
index 50647ab7235..a6ae20ffef6 100644
--- a/drivers/hwmon/pmbus.h
+++ b/drivers/hwmon/pmbus/pmbus.h
@@ -126,6 +126,42 @@
#define PMBUS_MFR_SERIAL 0x9E
/*
+ * Virtual registers.
+ * Useful to support attributes which are not supported by standard PMBus
+ * registers but exist as manufacturer specific registers on individual chips.
+ * Must be mapped to real registers in device specific code.
+ *
+ * Semantics:
+ * Virtual registers are all word size.
+ * READ registers are read-only; writes are either ignored or return an error.
+ * RESET registers are read/write. Reading returns zero (used for detection),
+ * writing any value causes the associated history to be reset.
+ */
+#define PMBUS_VIRT_BASE 0x100
+#define PMBUS_VIRT_READ_TEMP_MIN (PMBUS_VIRT_BASE + 0)
+#define PMBUS_VIRT_READ_TEMP_MAX (PMBUS_VIRT_BASE + 1)
+#define PMBUS_VIRT_RESET_TEMP_HISTORY (PMBUS_VIRT_BASE + 2)
+#define PMBUS_VIRT_READ_VIN_AVG (PMBUS_VIRT_BASE + 3)
+#define PMBUS_VIRT_READ_VIN_MIN (PMBUS_VIRT_BASE + 4)
+#define PMBUS_VIRT_READ_VIN_MAX (PMBUS_VIRT_BASE + 5)
+#define PMBUS_VIRT_RESET_VIN_HISTORY (PMBUS_VIRT_BASE + 6)
+#define PMBUS_VIRT_READ_IIN_AVG (PMBUS_VIRT_BASE + 7)
+#define PMBUS_VIRT_READ_IIN_MIN (PMBUS_VIRT_BASE + 8)
+#define PMBUS_VIRT_READ_IIN_MAX (PMBUS_VIRT_BASE + 9)
+#define PMBUS_VIRT_RESET_IIN_HISTORY (PMBUS_VIRT_BASE + 10)
+#define PMBUS_VIRT_READ_PIN_AVG (PMBUS_VIRT_BASE + 11)
+#define PMBUS_VIRT_READ_PIN_MAX (PMBUS_VIRT_BASE + 12)
+#define PMBUS_VIRT_RESET_PIN_HISTORY (PMBUS_VIRT_BASE + 13)
+#define PMBUS_VIRT_READ_VOUT_AVG (PMBUS_VIRT_BASE + 14)
+#define PMBUS_VIRT_READ_VOUT_MIN (PMBUS_VIRT_BASE + 15)
+#define PMBUS_VIRT_READ_VOUT_MAX (PMBUS_VIRT_BASE + 16)
+#define PMBUS_VIRT_RESET_VOUT_HISTORY (PMBUS_VIRT_BASE + 17)
+#define PMBUS_VIRT_READ_IOUT_AVG (PMBUS_VIRT_BASE + 18)
+#define PMBUS_VIRT_READ_IOUT_MIN (PMBUS_VIRT_BASE + 19)
+#define PMBUS_VIRT_READ_IOUT_MAX (PMBUS_VIRT_BASE + 20)
+#define PMBUS_VIRT_RESET_IOUT_HISTORY (PMBUS_VIRT_BASE + 21)
+
+/*
* CAPABILITY
*/
#define PB_CAPABILITY_SMBALERT (1<<4)
@@ -266,11 +302,11 @@ enum pmbus_sensor_classes {
#define PMBUS_HAVE_STATUS_FAN12 (1 << 16)
#define PMBUS_HAVE_STATUS_FAN34 (1 << 17)
+enum pmbus_data_format { linear = 0, direct, vid };
+
struct pmbus_driver_info {
int pages; /* Total number of pages */
- bool direct[PSC_NUM_CLASSES];
- /* true if device uses direct data format
- for the given sensor class */
+ enum pmbus_data_format format[PSC_NUM_CLASSES];
/*
* Support one set of coefficients for each sensor type
* Used for chips providing data in direct mode.
@@ -286,6 +322,10 @@ struct pmbus_driver_info {
* necessary.
*/
int (*read_byte_data)(struct i2c_client *client, int page, int reg);
+ int (*read_word_data)(struct i2c_client *client, int page, int reg);
+ int (*write_word_data)(struct i2c_client *client, int page, int reg,
+ u16 word);
+ int (*write_byte)(struct i2c_client *client, int page, u8 value);
/*
* The identify function determines supported PMBus functionality.
* This function is only necessary if a chip driver supports multiple
@@ -299,6 +339,9 @@ struct pmbus_driver_info {
int pmbus_set_page(struct i2c_client *client, u8 page);
int pmbus_read_word_data(struct i2c_client *client, u8 page, u8 reg);
+int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg, u16 word);
+int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg);
+int pmbus_write_byte(struct i2c_client *client, int page, u8 value);
void pmbus_clear_faults(struct i2c_client *client);
bool pmbus_check_byte_register(struct i2c_client *client, int page, int reg);
bool pmbus_check_word_register(struct i2c_client *client, int page, int reg);
diff --git a/drivers/hwmon/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 8e31a8e2c74..a561c3a0e91 100644
--- a/drivers/hwmon/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -33,14 +33,18 @@
/*
* Constants needed to determine number of sensors, booleans, and labels.
*/
-#define PMBUS_MAX_INPUT_SENSORS 11 /* 6*volt, 3*curr, 2*power */
-#define PMBUS_VOUT_SENSORS_PER_PAGE 5 /* input, min, max, lcrit,
- crit */
-#define PMBUS_IOUT_SENSORS_PER_PAGE 4 /* input, min, max, crit */
+#define PMBUS_MAX_INPUT_SENSORS 22 /* 10*volt, 7*curr, 5*power */
+#define PMBUS_VOUT_SENSORS_PER_PAGE 9 /* input, min, max, lcrit,
+ crit, lowest, highest, avg,
+ reset */
+#define PMBUS_IOUT_SENSORS_PER_PAGE 8 /* input, min, max, crit,
+ lowest, highest, avg,
+ reset */
#define PMBUS_POUT_SENSORS_PER_PAGE 4 /* input, cap, max, crit */
#define PMBUS_MAX_SENSORS_PER_FAN 1 /* input */
-#define PMBUS_MAX_SENSORS_PER_TEMP 5 /* input, min, max, lcrit,
- crit */
+#define PMBUS_MAX_SENSORS_PER_TEMP 8 /* input, min, max, lcrit,
+ crit, lowest, highest,
+ reset */
#define PMBUS_MAX_INPUT_BOOLEANS 7 /* v: min_alarm, max_alarm,
lcrit_alarm, crit_alarm;
@@ -74,11 +78,13 @@
#define PB_STATUS_INPUT_BASE (PB_STATUS_FAN34_BASE + PMBUS_PAGES)
#define PB_STATUS_TEMP_BASE (PB_STATUS_INPUT_BASE + 1)
+#define PMBUS_NAME_SIZE 24
+
struct pmbus_sensor {
- char name[I2C_NAME_SIZE]; /* sysfs sensor name */
+ char name[PMBUS_NAME_SIZE]; /* sysfs sensor name */
struct sensor_device_attribute attribute;
u8 page; /* page number */
- u8 reg; /* register */
+ u16 reg; /* register */
enum pmbus_sensor_classes class; /* sensor class */
bool update; /* runtime sensor update needed */
int data; /* Sensor data.
@@ -86,14 +92,14 @@ struct pmbus_sensor {
};
struct pmbus_boolean {
- char name[I2C_NAME_SIZE]; /* sysfs boolean name */
+ char name[PMBUS_NAME_SIZE]; /* sysfs boolean name */
struct sensor_device_attribute attribute;
};
struct pmbus_label {
- char name[I2C_NAME_SIZE]; /* sysfs label name */
+ char name[PMBUS_NAME_SIZE]; /* sysfs label name */
struct sensor_device_attribute attribute;
- char label[I2C_NAME_SIZE]; /* label */
+ char label[PMBUS_NAME_SIZE]; /* label */
};
struct pmbus_data {
@@ -162,19 +168,39 @@ int pmbus_set_page(struct i2c_client *client, u8 page)
}
EXPORT_SYMBOL_GPL(pmbus_set_page);
-static int pmbus_write_byte(struct i2c_client *client, u8 page, u8 value)
+int pmbus_write_byte(struct i2c_client *client, int page, u8 value)
{
int rv;
- rv = pmbus_set_page(client, page);
- if (rv < 0)
- return rv;
+ if (page >= 0) {
+ rv = pmbus_set_page(client, page);
+ if (rv < 0)
+ return rv;
+ }
return i2c_smbus_write_byte(client, value);
}
+EXPORT_SYMBOL_GPL(pmbus_write_byte);
+
+/*
+ * _pmbus_write_byte() is similar to pmbus_write_byte(), but checks if
+ * a device specific mapping funcion exists and calls it if necessary.
+ */
+static int _pmbus_write_byte(struct i2c_client *client, int page, u8 value)
+{
+ struct pmbus_data *data = i2c_get_clientdata(client);
+ const struct pmbus_driver_info *info = data->info;
+ int status;
+
+ if (info->write_byte) {
+ status = info->write_byte(client, page, value);
+ if (status != -ENODATA)
+ return status;
+ }
+ return pmbus_write_byte(client, page, value);
+}
-static int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg,
- u16 word)
+int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg, u16 word)
{
int rv;
@@ -184,6 +210,28 @@ static int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg,
return i2c_smbus_write_word_data(client, reg, word);
}
+EXPORT_SYMBOL_GPL(pmbus_write_word_data);
+
+/*
+ * _pmbus_write_word_data() is similar to pmbus_write_word_data(), but checks if
+ * a device specific mapping function exists and calls it if necessary.
+ */
+static int _pmbus_write_word_data(struct i2c_client *client, int page, int reg,
+ u16 word)
+{
+ struct pmbus_data *data = i2c_get_clientdata(client);
+ const struct pmbus_driver_info *info = data->info;
+ int status;
+
+ if (info->write_word_data) {
+ status = info->write_word_data(client, page, reg, word);
+ if (status != -ENODATA)
+ return status;
+ }
+ if (reg >= PMBUS_VIRT_BASE)
+ return -EINVAL;
+ return pmbus_write_word_data(client, page, reg, word);
+}
int pmbus_read_word_data(struct i2c_client *client, u8 page, u8 reg)
{
@@ -197,20 +245,61 @@ int pmbus_read_word_data(struct i2c_client *client, u8 page, u8 reg)
}
EXPORT_SYMBOL_GPL(pmbus_read_word_data);
-static int pmbus_read_byte_data(struct i2c_client *client, u8 page, u8 reg)
+/*
+ * _pmbus_read_word_data() is similar to pmbus_read_word_data(), but checks if
+ * a device specific mapping function exists and calls it if necessary.
+ */
+static int _pmbus_read_word_data(struct i2c_client *client, int page, int reg)
+{
+ struct pmbus_data *data = i2c_get_clientdata(client);
+ const struct pmbus_driver_info *info = data->info;
+ int status;
+
+ if (info->read_word_data) {
+ status = info->read_word_data(client, page, reg);
+ if (status != -ENODATA)
+ return status;
+ }
+ if (reg >= PMBUS_VIRT_BASE)
+ return -EINVAL;
+ return pmbus_read_word_data(client, page, reg);
+}
+
+int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg)
{
int rv;
- rv = pmbus_set_page(client, page);
- if (rv < 0)
- return rv;
+ if (page >= 0) {
+ rv = pmbus_set_page(client, page);
+ if (rv < 0)
+ return rv;
+ }
return i2c_smbus_read_byte_data(client, reg);
}
+EXPORT_SYMBOL_GPL(pmbus_read_byte_data);
+
+/*
+ * _pmbus_read_byte_data() is similar to pmbus_read_byte_data(), but checks if
+ * a device specific mapping function exists and calls it if necessary.
+ */
+static int _pmbus_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+ struct pmbus_data *data = i2c_get_clientdata(client);
+ const struct pmbus_driver_info *info = data->info;
+ int status;
+
+ if (info->read_byte_data) {
+ status = info->read_byte_data(client, page, reg);
+ if (status != -ENODATA)
+ return status;
+ }
+ return pmbus_read_byte_data(client, page, reg);
+}
static void pmbus_clear_fault_page(struct i2c_client *client, int page)
{
- pmbus_write_byte(client, page, PMBUS_CLEAR_FAULTS);
+ _pmbus_write_byte(client, page, PMBUS_CLEAR_FAULTS);
}
void pmbus_clear_faults(struct i2c_client *client)
@@ -223,13 +312,13 @@ void pmbus_clear_faults(struct i2c_client *client)
}
EXPORT_SYMBOL_GPL(pmbus_clear_faults);
-static int pmbus_check_status_cml(struct i2c_client *client, int page)
+static int pmbus_check_status_cml(struct i2c_client *client)
{
int status, status2;
- status = pmbus_read_byte_data(client, page, PMBUS_STATUS_BYTE);
+ status = pmbus_read_byte_data(client, -1, PMBUS_STATUS_BYTE);
if (status < 0 || (status & PB_STATUS_CML)) {
- status2 = pmbus_read_byte_data(client, page, PMBUS_STATUS_CML);
+ status2 = pmbus_read_byte_data(client, -1, PMBUS_STATUS_CML);
if (status2 < 0 || (status2 & PB_CML_FAULT_INVALID_COMMAND))
return -EINVAL;
}
@@ -241,10 +330,10 @@ bool pmbus_check_byte_register(struct i2c_client *client, int page, int reg)
int rv;
struct pmbus_data *data = i2c_get_clientdata(client);
- rv = pmbus_read_byte_data(client, page, reg);
+ rv = _pmbus_read_byte_data(client, page, reg);
if (rv >= 0 && !(data->flags & PMBUS_SKIP_STATUS_CHECK))
- rv = pmbus_check_status_cml(client, page);
- pmbus_clear_fault_page(client, page);
+ rv = pmbus_check_status_cml(client);
+ pmbus_clear_fault_page(client, -1);
return rv >= 0;
}
EXPORT_SYMBOL_GPL(pmbus_check_byte_register);
@@ -254,10 +343,10 @@ bool pmbus_check_word_register(struct i2c_client *client, int page, int reg)
int rv;
struct pmbus_data *data = i2c_get_clientdata(client);
- rv = pmbus_read_word_data(client, page, reg);
+ rv = _pmbus_read_word_data(client, page, reg);
if (rv >= 0 && !(data->flags & PMBUS_SKIP_STATUS_CHECK))
- rv = pmbus_check_status_cml(client, page);
- pmbus_clear_fault_page(client, page);
+ rv = pmbus_check_status_cml(client);
+ pmbus_clear_fault_page(client, -1);
return rv >= 0;
}
EXPORT_SYMBOL_GPL(pmbus_check_word_register);
@@ -270,24 +359,6 @@ const struct pmbus_driver_info *pmbus_get_driver_info(struct i2c_client *client)
}
EXPORT_SYMBOL_GPL(pmbus_get_driver_info);
-/*
- * _pmbus_read_byte_data() is similar to pmbus_read_byte_data(), but checks if
- * a device specific mapping funcion exists and calls it if necessary.
- */
-static int _pmbus_read_byte_data(struct i2c_client *client, int page, int reg)
-{
- struct pmbus_data *data = i2c_get_clientdata(client);
- const struct pmbus_driver_info *info = data->info;
- int status;
-
- if (info->read_byte_data) {
- status = info->read_byte_data(client, page, reg);
- if (status != -ENODATA)
- return status;
- }
- return pmbus_read_byte_data(client, page, reg);
-}
-
static struct pmbus_data *pmbus_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
@@ -347,8 +418,9 @@ static struct pmbus_data *pmbus_update_device(struct device *dev)
if (!data->valid || sensor->update)
sensor->data
- = pmbus_read_word_data(client, sensor->page,
- sensor->reg);
+ = _pmbus_read_word_data(client,
+ sensor->page,
+ sensor->reg);
}
pmbus_clear_faults(client);
data->last_updated = jiffies;
@@ -443,15 +515,37 @@ static long pmbus_reg2data_direct(struct pmbus_data *data,
return (val - b) / m;
}
+/*
+ * Convert VID sensor values to milli- or micro-units
+ * depending on sensor type.
+ * We currently only support VR11.
+ */
+static long pmbus_reg2data_vid(struct pmbus_data *data,
+ struct pmbus_sensor *sensor)
+{
+ long val = sensor->data;
+
+ if (val < 0x02 || val > 0xb2)
+ return 0;
+ return DIV_ROUND_CLOSEST(160000 - (val - 2) * 625, 100);
+}
+
static long pmbus_reg2data(struct pmbus_data *data, struct pmbus_sensor *sensor)
{
long val;
- if (data->info->direct[sensor->class])
+ switch (data->info->format[sensor->class]) {
+ case direct:
val = pmbus_reg2data_direct(data, sensor);
- else
+ break;
+ case vid:
+ val = pmbus_reg2data_vid(data, sensor);
+ break;
+ case linear:
+ default:
val = pmbus_reg2data_linear(data, sensor);
-
+ break;
+ }
return val;
}
@@ -561,16 +655,31 @@ static u16 pmbus_data2reg_direct(struct pmbus_data *data,
return val;
}
+static u16 pmbus_data2reg_vid(struct pmbus_data *data,
+ enum pmbus_sensor_classes class, long val)
+{
+ val = SENSORS_LIMIT(val, 500, 1600);
+
+ return 2 + DIV_ROUND_CLOSEST((1600 - val) * 100, 625);
+}
+
static u16 pmbus_data2reg(struct pmbus_data *data,
enum pmbus_sensor_classes class, long val)
{
u16 regval;
- if (data->info->direct[class])
+ switch (data->info->format[class]) {
+ case direct:
regval = pmbus_data2reg_direct(data, class, val);
- else
+ break;
+ case vid:
+ regval = pmbus_data2reg_vid(data, class, val);
+ break;
+ case linear:
+ default:
regval = pmbus_data2reg_linear(data, class, val);
-
+ break;
+ }
return regval;
}
@@ -682,7 +791,7 @@ static ssize_t pmbus_set_sensor(struct device *dev,
mutex_lock(&data->update_lock);
regval = pmbus_data2reg(data, sensor->class, val);
- ret = pmbus_write_word_data(client, sensor->page, sensor->reg, regval);
+ ret = _pmbus_write_word_data(client, sensor->page, sensor->reg, regval);
if (ret < 0)
rv = ret;
else
@@ -867,7 +976,8 @@ static void pmbus_find_max_attr(struct i2c_client *client,
* and its associated alarm attribute.
*/
struct pmbus_limit_attr {
- u8 reg; /* Limit register */
+ u16 reg; /* Limit register */
+ bool update; /* True if register needs updates */
const char *attr; /* Attribute name */
const char *alarm; /* Alarm attribute name */
u32 sbit; /* Alarm attribute status bit */
@@ -912,9 +1022,10 @@ static bool pmbus_add_limit_attrs(struct i2c_client *client,
if (pmbus_check_word_register(client, page, l->reg)) {
cindex = data->num_sensors;
pmbus_add_sensor(data, name, l->attr, index, page,
- l->reg, attr->class, attr->update,
+ l->reg, attr->class,
+ attr->update || l->update,
false);
- if (info->func[page] & attr->sfunc) {
+ if (l->sbit && (info->func[page] & attr->sfunc)) {
if (attr->compare) {
pmbus_add_boolean_cmp(data, name,
l->alarm, index,
@@ -953,9 +1064,11 @@ static void pmbus_add_sensor_attrs_one(struct i2c_client *client,
index, page, cbase, attr);
/*
* Add generic alarm attribute only if there are no individual
- * alarm attributes, and if there is a global alarm bit.
+ * alarm attributes, if there is a global alarm bit, and if
+ * the generic status register for this page is accessible.
*/
- if (!have_alarm && attr->gbit)
+ if (!have_alarm && attr->gbit &&
+ pmbus_check_byte_register(client, page, PMBUS_STATUS_BYTE))
pmbus_add_boolean_reg(data, name, "alarm", index,
PB_STATUS_BASE + page,
attr->gbit);
@@ -1008,6 +1121,21 @@ static const struct pmbus_limit_attr vin_limit_attrs[] = {
.attr = "crit",
.alarm = "crit_alarm",
.sbit = PB_VOLTAGE_OV_FAULT,
+ }, {
+ .reg = PMBUS_VIRT_READ_VIN_AVG,
+ .update = true,
+ .attr = "average",
+ }, {
+ .reg = PMBUS_VIRT_READ_VIN_MIN,
+ .update = true,
+ .attr = "lowest",
+ }, {
+ .reg = PMBUS_VIRT_READ_VIN_MAX,
+ .update = true,
+ .attr = "highest",
+ }, {
+ .reg = PMBUS_VIRT_RESET_VIN_HISTORY,
+ .attr = "reset_history",
},
};
@@ -1032,6 +1160,21 @@ static const struct pmbus_limit_attr vout_limit_attrs[] = {
.attr = "crit",
.alarm = "crit_alarm",
.sbit = PB_VOLTAGE_OV_FAULT,
+ }, {
+ .reg = PMBUS_VIRT_READ_VOUT_AVG,
+ .update = true,
+ .attr = "average",
+ }, {
+ .reg = PMBUS_VIRT_READ_VOUT_MIN,
+ .update = true,
+ .attr = "lowest",
+ }, {
+ .reg = PMBUS_VIRT_READ_VOUT_MAX,
+ .update = true,
+ .attr = "highest",
+ }, {
+ .reg = PMBUS_VIRT_RESET_VOUT_HISTORY,
+ .attr = "reset_history",
}
};
@@ -1078,6 +1221,21 @@ static const struct pmbus_limit_attr iin_limit_attrs[] = {
.attr = "crit",
.alarm = "crit_alarm",
.sbit = PB_IIN_OC_FAULT,
+ }, {
+ .reg = PMBUS_VIRT_READ_IIN_AVG,
+ .update = true,
+ .attr = "average",
+ }, {
+ .reg = PMBUS_VIRT_READ_IIN_MIN,
+ .update = true,
+ .attr = "lowest",
+ }, {
+ .reg = PMBUS_VIRT_READ_IIN_MAX,
+ .update = true,
+ .attr = "highest",
+ }, {
+ .reg = PMBUS_VIRT_RESET_IIN_HISTORY,
+ .attr = "reset_history",
}
};
@@ -1097,6 +1255,21 @@ static const struct pmbus_limit_attr iout_limit_attrs[] = {
.attr = "crit",
.alarm = "crit_alarm",
.sbit = PB_IOUT_OC_FAULT,
+ }, {
+ .reg = PMBUS_VIRT_READ_IOUT_AVG,
+ .update = true,
+ .attr = "average",
+ }, {
+ .reg = PMBUS_VIRT_READ_IOUT_MIN,
+ .update = true,
+ .attr = "lowest",
+ }, {
+ .reg = PMBUS_VIRT_READ_IOUT_MAX,
+ .update = true,
+ .attr = "highest",
+ }, {
+ .reg = PMBUS_VIRT_RESET_IOUT_HISTORY,
+ .attr = "reset_history",
}
};
@@ -1132,6 +1305,17 @@ static const struct pmbus_limit_attr pin_limit_attrs[] = {
.attr = "max",
.alarm = "alarm",
.sbit = PB_PIN_OP_WARNING,
+ }, {
+ .reg = PMBUS_VIRT_READ_PIN_AVG,
+ .update = true,
+ .attr = "average",
+ }, {
+ .reg = PMBUS_VIRT_READ_PIN_MAX,
+ .update = true,
+ .attr = "input_highest",
+ }, {
+ .reg = PMBUS_VIRT_RESET_PIN_HISTORY,
+ .attr = "reset_history",
}
};
@@ -1200,6 +1384,39 @@ static const struct pmbus_limit_attr temp_limit_attrs[] = {
.attr = "crit",
.alarm = "crit_alarm",
.sbit = PB_TEMP_OT_FAULT,
+ }, {
+ .reg = PMBUS_VIRT_READ_TEMP_MIN,
+ .attr = "lowest",
+ }, {
+ .reg = PMBUS_VIRT_READ_TEMP_MAX,
+ .attr = "highest",
+ }, {
+ .reg = PMBUS_VIRT_RESET_TEMP_HISTORY,
+ .attr = "reset_history",
+ }
+};
+
+static const struct pmbus_limit_attr temp_limit_attrs23[] = {
+ {
+ .reg = PMBUS_UT_WARN_LIMIT,
+ .attr = "min",
+ .alarm = "min_alarm",
+ .sbit = PB_TEMP_UT_WARNING,
+ }, {
+ .reg = PMBUS_UT_FAULT_LIMIT,
+ .attr = "lcrit",
+ .alarm = "lcrit_alarm",
+ .sbit = PB_TEMP_UT_FAULT,
+ }, {
+ .reg = PMBUS_OT_WARN_LIMIT,
+ .attr = "max",
+ .alarm = "max_alarm",
+ .sbit = PB_TEMP_OT_WARNING,
+ }, {
+ .reg = PMBUS_OT_FAULT_LIMIT,
+ .attr = "crit",
+ .alarm = "crit_alarm",
+ .sbit = PB_TEMP_OT_FAULT,
}
};
@@ -1226,8 +1443,8 @@ static const struct pmbus_sensor_attr temp_attributes[] = {
.sfunc = PMBUS_HAVE_STATUS_TEMP,
.sbase = PB_STATUS_TEMP_BASE,
.gbit = PB_STATUS_TEMPERATURE,
- .limit = temp_limit_attrs,
- .nlimit = ARRAY_SIZE(temp_limit_attrs),
+ .limit = temp_limit_attrs23,
+ .nlimit = ARRAY_SIZE(temp_limit_attrs23),
}, {
.reg = PMBUS_READ_TEMPERATURE_3,
.class = PSC_TEMPERATURE,
@@ -1238,8 +1455,8 @@ static const struct pmbus_sensor_attr temp_attributes[] = {
.sfunc = PMBUS_HAVE_STATUS_TEMP,
.sbase = PB_STATUS_TEMP_BASE,
.gbit = PB_STATUS_TEMPERATURE,
- .limit = temp_limit_attrs,
- .nlimit = ARRAY_SIZE(temp_limit_attrs),
+ .limit = temp_limit_attrs23,
+ .nlimit = ARRAY_SIZE(temp_limit_attrs23),
}
};
@@ -1380,7 +1597,7 @@ static int pmbus_identify_common(struct i2c_client *client,
*/
switch (vout_mode >> 5) {
case 0: /* linear mode */
- if (data->info->direct[PSC_VOLTAGE_OUT])
+ if (data->info->format[PSC_VOLTAGE_OUT] != linear)
return -ENODEV;
exponent = vout_mode & 0x1f;
@@ -1389,8 +1606,12 @@ static int pmbus_identify_common(struct i2c_client *client,
exponent |= ~0x1f;
data->exponent = exponent;
break;
+ case 1: /* VID mode */
+ if (data->info->format[PSC_VOLTAGE_OUT] != vid)
+ return -ENODEV;
+ break;
case 2: /* direct mode */
- if (!data->info->direct[PSC_VOLTAGE_OUT])
+ if (data->info->format[PSC_VOLTAGE_OUT] != direct)
return -ENODEV;
break;
default:
@@ -1457,18 +1678,6 @@ int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id,
ret = -EINVAL;
goto out_data;
}
- /*
- * Bail out if more than one page was configured, but we can not
- * select the highest page. This is an indication that the wrong
- * chip type was selected. Better bail out now than keep
- * returning errors later on.
- */
- if (info->pages > 1 && pmbus_set_page(client, info->pages - 1) < 0) {
- dev_err(&client->dev, "Failed to select page %d\n",
- info->pages - 1);
- ret = -EINVAL;
- goto out_data;
- }
ret = pmbus_identify_common(client, data);
if (ret < 0) {
diff --git a/drivers/hwmon/ucd9000.c b/drivers/hwmon/pmbus/ucd9000.c
index ace1c731973..d0ddb60155c 100644
--- a/drivers/hwmon/ucd9000.c
+++ b/drivers/hwmon/pmbus/ucd9000.c
@@ -141,13 +141,11 @@ static int ucd9000_probe(struct i2c_client *client,
block_buffer[ret] = '\0';
dev_info(&client->dev, "Device ID %s\n", block_buffer);
- mid = NULL;
- for (i = 0; i < ARRAY_SIZE(ucd9000_id); i++) {
- mid = &ucd9000_id[i];
+ for (mid = ucd9000_id; mid->name[0]; mid++) {
if (!strncasecmp(mid->name, block_buffer, strlen(mid->name)))
break;
}
- if (!mid || !strlen(mid->name)) {
+ if (!mid->name[0]) {
dev_err(&client->dev, "Unsupported device\n");
return -ENODEV;
}
diff --git a/drivers/hwmon/ucd9200.c b/drivers/hwmon/pmbus/ucd9200.c
index ffcc1cf3609..c65e9da707c 100644
--- a/drivers/hwmon/ucd9200.c
+++ b/drivers/hwmon/pmbus/ucd9200.c
@@ -68,13 +68,11 @@ static int ucd9200_probe(struct i2c_client *client,
block_buffer[ret] = '\0';
dev_info(&client->dev, "Device ID %s\n", block_buffer);
- mid = NULL;
- for (i = 0; i < ARRAY_SIZE(ucd9200_id); i++) {
- mid = &ucd9200_id[i];
+ for (mid = ucd9200_id; mid->name[0]; mid++) {
if (!strncasecmp(mid->name, block_buffer, strlen(mid->name)))
break;
}
- if (!mid || !strlen(mid->name)) {
+ if (!mid->name[0]) {
dev_err(&client->dev, "Unsupported device\n");
return -ENODEV;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-30 02:55:02 +0000