diff options
Diffstat (limited to 'drivers/hwmon')
71 files changed, 4888 insertions, 2752 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 9afa70f877cc..079620dd4286 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -324,7 +324,7 @@ config SENSORS_K8TEMP config SENSORS_K10TEMP tristate "AMD Family 10h+ temperature sensor" - depends on X86 && PCI && AMD_NB + depends on X86 && PCI && AMD_NODE help If you say yes here you get support for the temperature sensor(s) inside your CPU. Supported are later revisions of @@ -335,6 +335,26 @@ config SENSORS_K10TEMP This driver can also be built as a module. If so, the module will be called k10temp. +config SENSORS_KBATT + tristate "KEBA battery controller support" + depends on KEBA_CP500 + help + This driver supports the battery monitoring controller found in + KEBA system FPGA devices. + + This driver can also be built as a module. If so, the module + will be called kbatt. + +config SENSORS_KFAN + tristate "KEBA fan controller support" + depends on KEBA_CP500 + help + This driver supports the fan controller found in KEBA system + FPGA devices. + + This driver can also be built as a module. If so, the module + will be called kfan. + config SENSORS_FAM15H_POWER tristate "AMD Family 15h processor power" depends on X86 && PCI && CPU_SUP_AMD @@ -463,6 +483,16 @@ config SENSORS_BT1_PVT_ALARMS the data conversion will be periodically performed and the data will be saved in the internal driver cache. +config SENSORS_CGBC + tristate "Congatec Board Controller Sensors" + depends on MFD_CGBC + help + Enable sensors support for the Congatec Board Controller. It has + temperature, voltage, current and fan sensors. + + This driver can also be built as a module. If so, the module will be + called cgbc-hwmon. + config SENSORS_CHIPCAP2 tristate "Amphenol ChipCap 2 relative humidity and temperature sensor" depends on I2C @@ -789,6 +819,17 @@ config SENSORS_HS3001 This driver can also be built as a module. If so, the module will be called hs3001. +config SENSORS_HTU31 + tristate "Measurement Specialties HTU31 humidity and temperature sensor" + depends on I2C + select CRC8 + help + If you say yes here you get support for the HTU31 humidity + and temperature sensors. + + This driver can also be built as a module. If so, the module + will be called htu31. + config SENSORS_IBMAEM tristate "IBM Active Energy Manager temperature/power sensors and control" select IPMI_SI @@ -1287,6 +1328,15 @@ config SENSORS_MAX31790 This driver can also be built as a module. If so, the module will be called max31790. +config SENSORS_MAX77705 + tristate "MAX77705 current and voltage sensor" + depends on MFD_MAX77705 + help + If you say yes here you get support for MAX77705 sensors connected with I2C. + + This driver can also be built as a module. If so, the module + will be called max77705-hwmon. + config SENSORS_MC34VR500 tristate "NXP MC34VR500 hardware monitoring driver" depends on I2C @@ -1412,7 +1462,9 @@ config SENSORS_LM73 config SENSORS_LM75 tristate "National Semiconductor LM75 and compatibles" depends on I2C + depends on I3C || !I3C select REGMAP_I2C + select REGMAP_I3C if I3C help If you say yes here you get support for one common type of temperature sensor chip, with models including: @@ -1517,7 +1569,7 @@ config SENSORS_LM90 MAX6657, MAX6658, MAX6659, MAX6680, MAX6681, MAX6692, MAX6695, MAX6696, ON Semiconductor NCT1008, NCT210, NCT72, NCT214, NCT218, - Winbond/Nuvoton W83L771W/G/AWG/ASG, + Winbond/Nuvoton W83L771W/G/AWG/ASG, NCT7716, NCT7717 and NCT7718, Philips NE1618, SA56004, GMT G781, Texas Instruments TMP451 and TMP461 sensor chips. @@ -1623,7 +1675,7 @@ config SENSORS_NTC_THERMISTOR B57891S0103 from EPCOS. This driver can also be built as a module. If so, the module - will be called ntc-thermistor. + will be called ntc_thermistor. config SENSORS_NCT6683 tristate "Nuvoton NCT6683D" @@ -1772,17 +1824,6 @@ config SENSORS_NZXT_SMART2 source "drivers/hwmon/occ/Kconfig" -config SENSORS_OXP - tristate "OneXPlayer EC fan control" - depends on ACPI_EC - depends on X86 - help - If you say yes here you get support for fan readings and control over - OneXPlayer handheld devices. Only OneXPlayer mini AMD handheld variant - boards are supported. - - Can also be built as a module. In that case it will be called oxp-sensors. - config SENSORS_PCF8591 tristate "Philips PCF8591 ADC/DAC" depends on I2C @@ -1822,6 +1863,18 @@ config SENSORS_PWM_FAN This driver can also be built as a module. If so, the module will be called pwm-fan. +config SENSORS_QNAP_MCU_HWMON + tristate "QNAP MCU hardware monitoring" + depends on MFD_QNAP_MCU + depends on THERMAL || THERMAL=n + help + Say yes here to enable support for fan and temperature sensor + connected to a QNAP MCU, as found in a number of QNAP network + attached storage devices. + + This driver can also be built as a module. If so, the module + will be called qnap-mcu-hwmon. + config SENSORS_RASPBERRYPI_HWMON tristate "Raspberry Pi voltage monitor" depends on RASPBERRYPI_FIRMWARE || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) @@ -1852,16 +1905,6 @@ config SENSORS_SBTSI This driver can also be built as a module. If so, the module will be called sbtsi_temp. -config SENSORS_SBRMI - tristate "Emulated SB-RMI sensor" - depends on I2C - help - If you say yes here you get support for emulated RMI - sensors on AMD SoCs with APML interface connected to a BMC device. - - This driver can also be built as a module. If so, the module will - be called sbrmi. - config SENSORS_SHT15 tristate "Sensiron humidity and temperature sensors. SHT15 and compat." depends on GPIOLIB || COMPILE_TEST diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index b827b92f2a78..48e5866c0c9a 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -59,6 +59,7 @@ obj-$(CONFIG_SENSORS_ASUS_ROG_RYUJIN) += asus_rog_ryujin.o obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o obj-$(CONFIG_SENSORS_AXI_FAN_CONTROL) += axi-fan-control.o obj-$(CONFIG_SENSORS_BT1_PVT) += bt1-pvt.o +obj-$(CONFIG_SENSORS_CGBC) += cgbc-hwmon.o obj-$(CONFIG_SENSORS_CHIPCAP2) += chipcap2.o obj-$(CONFIG_SENSORS_CORETEMP) += coretemp.o obj-$(CONFIG_SENSORS_CORSAIR_CPRO) += corsair-cpro.o @@ -91,6 +92,7 @@ obj-$(CONFIG_SENSORS_GPIO_FAN) += gpio-fan.o obj-$(CONFIG_SENSORS_GXP_FAN_CTRL) += gxp-fan-ctrl.o obj-$(CONFIG_SENSORS_HIH6130) += hih6130.o obj-$(CONFIG_SENSORS_HS3001) += hs3001.o +obj-$(CONFIG_SENSORS_HTU31) += htu31.o obj-$(CONFIG_SENSORS_ULTRA45) += ultra45_env.o obj-$(CONFIG_SENSORS_I5500) += i5500_temp.o obj-$(CONFIG_SENSORS_I5K_AMB) += i5k_amb.o @@ -108,6 +110,8 @@ obj-$(CONFIG_SENSORS_IT87) += it87.o obj-$(CONFIG_SENSORS_JC42) += jc42.o obj-$(CONFIG_SENSORS_K8TEMP) += k8temp.o obj-$(CONFIG_SENSORS_K10TEMP) += k10temp.o +obj-$(CONFIG_SENSORS_KBATT) += kbatt.o +obj-$(CONFIG_SENSORS_KFAN) += kfan.o obj-$(CONFIG_SENSORS_LAN966X) += lan966x-hwmon.o obj-$(CONFIG_SENSORS_LENOVO_EC) += lenovo-ec-sensors.o obj-$(CONFIG_SENSORS_LINEAGE) += lineage-pem.o @@ -159,6 +163,7 @@ obj-$(CONFIG_SENSORS_MAX6650) += max6650.o obj-$(CONFIG_SENSORS_MAX6697) += max6697.o obj-$(CONFIG_SENSORS_MAX31790) += max31790.o obj-$(CONFIG_MAX31827) += max31827.o +obj-$(CONFIG_SENSORS_MAX77705) += max77705-hwmon.o obj-$(CONFIG_SENSORS_MC13783_ADC)+= mc13783-adc.o obj-$(CONFIG_SENSORS_MC34VR500) += mc34vr500.o obj-$(CONFIG_SENSORS_MCP3021) += mcp3021.o @@ -181,7 +186,6 @@ obj-$(CONFIG_SENSORS_NTC_THERMISTOR) += ntc_thermistor.o obj-$(CONFIG_SENSORS_NZXT_KRAKEN2) += nzxt-kraken2.o obj-$(CONFIG_SENSORS_NZXT_KRAKEN3) += nzxt-kraken3.o obj-$(CONFIG_SENSORS_NZXT_SMART2) += nzxt-smart2.o -obj-$(CONFIG_SENSORS_OXP) += oxp-sensors.o obj-$(CONFIG_SENSORS_PC87360) += pc87360.o obj-$(CONFIG_SENSORS_PC87427) += pc87427.o obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o @@ -189,6 +193,7 @@ obj-$(CONFIG_SENSORS_POWERZ) += powerz.o obj-$(CONFIG_SENSORS_POWR1220) += powr1220.o obj-$(CONFIG_SENSORS_PT5161L) += pt5161l.o obj-$(CONFIG_SENSORS_PWM_FAN) += pwm-fan.o +obj-$(CONFIG_SENSORS_QNAP_MCU_HWMON) += qnap-mcu-hwmon.o obj-$(CONFIG_SENSORS_RASPBERRYPI_HWMON) += raspberrypi-hwmon.o obj-$(CONFIG_SENSORS_SBTSI) += sbtsi_temp.o obj-$(CONFIG_SENSORS_SBRMI) += sbrmi.o diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c index 3db1b9d09c32..29ccdc2fb7ff 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -84,27 +84,17 @@ struct acpi_power_meter_resource { u64 power; u64 cap; u64 avg_interval; + bool power_alarm; int sensors_valid; unsigned long sensors_last_updated; - struct sensor_device_attribute sensors[NUM_SENSORS]; - int num_sensors; +#define POWER_METER_TRIP_AVERAGE_MIN_IDX 0 +#define POWER_METER_TRIP_AVERAGE_MAX_IDX 1 s64 trip[2]; int num_domain_devices; struct acpi_device **domain_devices; struct kobject *holders_dir; }; -struct sensor_template { - char *label; - ssize_t (*show)(struct device *dev, - struct device_attribute *devattr, - char *buf); - ssize_t (*set)(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count); - int index; -}; - /* Averaging interval */ static int update_avg_interval(struct acpi_power_meter_resource *resource) { @@ -123,62 +113,6 @@ static int update_avg_interval(struct acpi_power_meter_resource *resource) return 0; } -static ssize_t show_avg_interval(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - - mutex_lock(&resource->lock); - update_avg_interval(resource); - mutex_unlock(&resource->lock); - - return sprintf(buf, "%llu\n", resource->avg_interval); -} - -static ssize_t set_avg_interval(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - union acpi_object arg0 = { ACPI_TYPE_INTEGER }; - struct acpi_object_list args = { 1, &arg0 }; - int res; - unsigned long temp; - unsigned long long data; - acpi_status status; - - res = kstrtoul(buf, 10, &temp); - if (res) - return res; - - if (temp > resource->caps.max_avg_interval || - temp < resource->caps.min_avg_interval) - return -EINVAL; - arg0.integer.value = temp; - - mutex_lock(&resource->lock); - status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PAI", - &args, &data); - if (ACPI_SUCCESS(status)) - resource->avg_interval = temp; - mutex_unlock(&resource->lock); - - if (ACPI_FAILURE(status)) { - acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PAI", - status); - return -EINVAL; - } - - /* _PAI returns 0 on success, nonzero otherwise */ - if (data) - return -EINVAL; - - return count; -} - /* Cap functions */ static int update_cap(struct acpi_power_meter_resource *resource) { @@ -197,61 +131,6 @@ static int update_cap(struct acpi_power_meter_resource *resource) return 0; } -static ssize_t show_cap(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - - mutex_lock(&resource->lock); - update_cap(resource); - mutex_unlock(&resource->lock); - - return sprintf(buf, "%llu\n", resource->cap * 1000); -} - -static ssize_t set_cap(struct device *dev, struct device_attribute *devattr, - const char *buf, size_t count) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - union acpi_object arg0 = { ACPI_TYPE_INTEGER }; - struct acpi_object_list args = { 1, &arg0 }; - int res; - unsigned long temp; - unsigned long long data; - acpi_status status; - - res = kstrtoul(buf, 10, &temp); - if (res) - return res; - - temp = DIV_ROUND_CLOSEST(temp, 1000); - if (temp > resource->caps.max_cap || temp < resource->caps.min_cap) - return -EINVAL; - arg0.integer.value = temp; - - mutex_lock(&resource->lock); - status = acpi_evaluate_integer(resource->acpi_dev->handle, "_SHL", - &args, &data); - if (ACPI_SUCCESS(status)) - resource->cap = temp; - mutex_unlock(&resource->lock); - - if (ACPI_FAILURE(status)) { - acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_SHL", - status); - return -EINVAL; - } - - /* _SHL returns 0 on success, nonzero otherwise */ - if (data) - return -EINVAL; - - return count; -} - /* Power meter trip points */ static int set_acpi_trip(struct acpi_power_meter_resource *resource) { @@ -286,32 +165,6 @@ static int set_acpi_trip(struct acpi_power_meter_resource *resource) return 0; } -static ssize_t set_trip(struct device *dev, struct device_attribute *devattr, - const char *buf, size_t count) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - int res; - unsigned long temp; - - res = kstrtoul(buf, 10, &temp); - if (res) - return res; - - temp = DIV_ROUND_CLOSEST(temp, 1000); - - mutex_lock(&resource->lock); - resource->trip[attr->index - 7] = temp; - res = set_acpi_trip(resource); - mutex_unlock(&resource->lock); - - if (res) - return res; - - return count; -} - /* Power meter */ static int update_meter(struct acpi_power_meter_resource *resource) { @@ -338,192 +191,6 @@ static int update_meter(struct acpi_power_meter_resource *resource) return 0; } -static ssize_t show_power(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - - mutex_lock(&resource->lock); - update_meter(resource); - mutex_unlock(&resource->lock); - - if (resource->power == UNKNOWN_POWER) - return -ENODATA; - - return sprintf(buf, "%llu\n", resource->power * 1000); -} - -/* Miscellaneous */ -static ssize_t show_str(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - acpi_string val; - int ret; - - mutex_lock(&resource->lock); - switch (attr->index) { - case 0: - val = resource->model_number; - break; - case 1: - val = resource->serial_number; - break; - case 2: - val = resource->oem_info; - break; - default: - WARN(1, "Implementation error: unexpected attribute index %d\n", - attr->index); - val = ""; - break; - } - ret = sprintf(buf, "%s\n", val); - mutex_unlock(&resource->lock); - return ret; -} - -static ssize_t show_val(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - u64 val = 0; - - switch (attr->index) { - case 0: - val = resource->caps.min_avg_interval; - break; - case 1: - val = resource->caps.max_avg_interval; - break; - case 2: - val = resource->caps.min_cap * 1000; - break; - case 3: - val = resource->caps.max_cap * 1000; - break; - case 4: - if (resource->caps.hysteresis == UNKNOWN_HYSTERESIS) - return sprintf(buf, "unknown\n"); - - val = resource->caps.hysteresis * 1000; - break; - case 5: - if (resource->caps.flags & POWER_METER_IS_BATTERY) - val = 1; - else - val = 0; - break; - case 6: - if (resource->power > resource->cap) - val = 1; - else - val = 0; - break; - case 7: - case 8: - if (resource->trip[attr->index - 7] < 0) - return sprintf(buf, "unknown\n"); - - val = resource->trip[attr->index - 7] * 1000; - break; - default: - WARN(1, "Implementation error: unexpected attribute index %d\n", - attr->index); - break; - } - - return sprintf(buf, "%llu\n", val); -} - -static ssize_t show_accuracy(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - unsigned int acc = resource->caps.accuracy; - - return sprintf(buf, "%u.%u%%\n", acc / 1000, acc % 1000); -} - -static ssize_t show_name(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - return sprintf(buf, "%s\n", ACPI_POWER_METER_NAME); -} - -#define RO_SENSOR_TEMPLATE(_label, _show, _index) \ - { \ - .label = _label, \ - .show = _show, \ - .index = _index, \ - } - -#define RW_SENSOR_TEMPLATE(_label, _show, _set, _index) \ - { \ - .label = _label, \ - .show = _show, \ - .set = _set, \ - .index = _index, \ - } - -/* Sensor descriptions. If you add a sensor, update NUM_SENSORS above! */ -static struct sensor_template meter_attrs[] = { - RO_SENSOR_TEMPLATE(POWER_AVERAGE_NAME, show_power, 0), - RO_SENSOR_TEMPLATE("power1_accuracy", show_accuracy, 0), - RO_SENSOR_TEMPLATE("power1_average_interval_min", show_val, 0), - RO_SENSOR_TEMPLATE("power1_average_interval_max", show_val, 1), - RO_SENSOR_TEMPLATE("power1_is_battery", show_val, 5), - RW_SENSOR_TEMPLATE(POWER_AVG_INTERVAL_NAME, show_avg_interval, - set_avg_interval, 0), - {}, -}; - -static struct sensor_template misc_cap_attrs[] = { - RO_SENSOR_TEMPLATE("power1_cap_min", show_val, 2), - RO_SENSOR_TEMPLATE("power1_cap_max", show_val, 3), - RO_SENSOR_TEMPLATE("power1_cap_hyst", show_val, 4), - RO_SENSOR_TEMPLATE(POWER_ALARM_NAME, show_val, 6), - {}, -}; - -static struct sensor_template ro_cap_attrs[] = { - RO_SENSOR_TEMPLATE(POWER_CAP_NAME, show_cap, 0), - {}, -}; - -static struct sensor_template rw_cap_attrs[] = { - RW_SENSOR_TEMPLATE(POWER_CAP_NAME, show_cap, set_cap, 0), - {}, -}; - -static struct sensor_template trip_attrs[] = { - RW_SENSOR_TEMPLATE("power1_average_min", show_val, set_trip, 7), - RW_SENSOR_TEMPLATE("power1_average_max", show_val, set_trip, 8), - {}, -}; - -static struct sensor_template misc_attrs[] = { - RO_SENSOR_TEMPLATE("name", show_name, 0), - RO_SENSOR_TEMPLATE("power1_model_number", show_str, 0), - RO_SENSOR_TEMPLATE("power1_oem_info", show_str, 2), - RO_SENSOR_TEMPLATE("power1_serial_number", show_str, 1), - {}, -}; - -#undef RO_SENSOR_TEMPLATE -#undef RW_SENSOR_TEMPLATE - /* Read power domain data */ static void remove_domain_devices(struct acpi_power_meter_resource *resource) { @@ -625,109 +292,434 @@ end: return res; } -/* Registration and deregistration */ -static int register_attrs(struct acpi_power_meter_resource *resource, - struct sensor_template *attrs) +static int set_trip(struct acpi_power_meter_resource *resource, u16 trip_idx, + unsigned long trip) { - struct device *dev = &resource->acpi_dev->dev; - struct sensor_device_attribute *sensors = - &resource->sensors[resource->num_sensors]; - int res = 0; + unsigned long trip_bk; + int ret; - while (attrs->label) { - sensors->dev_attr.attr.name = attrs->label; - sensors->dev_attr.attr.mode = 0444; - sensors->dev_attr.show = attrs->show; - sensors->index = attrs->index; + trip = DIV_ROUND_CLOSEST(trip, 1000); + trip_bk = resource->trip[trip_idx]; - if (attrs->set) { - sensors->dev_attr.attr.mode |= 0200; - sensors->dev_attr.store = attrs->set; - } - - sysfs_attr_init(&sensors->dev_attr.attr); - res = device_create_file(dev, &sensors->dev_attr); - if (res) { - sensors->dev_attr.attr.name = NULL; - goto error; - } - sensors++; - resource->num_sensors++; - attrs++; + resource->trip[trip_idx] = trip; + ret = set_acpi_trip(resource); + if (ret) { + dev_err(&resource->acpi_dev->dev, "set %s failed.\n", + (trip_idx == POWER_METER_TRIP_AVERAGE_MIN_IDX) ? + "power1_average_min" : "power1_average_max"); + resource->trip[trip_idx] = trip_bk; } -error: - return res; + return ret; } -static void remove_attrs(struct acpi_power_meter_resource *resource) +static int set_cap(struct acpi_power_meter_resource *resource, + unsigned long cap) { - int i; + union acpi_object arg0 = { ACPI_TYPE_INTEGER }; + struct acpi_object_list args = { 1, &arg0 }; + unsigned long long data; + acpi_status status; - for (i = 0; i < resource->num_sensors; i++) { - if (!resource->sensors[i].dev_attr.attr.name) - continue; - device_remove_file(&resource->acpi_dev->dev, - &resource->sensors[i].dev_attr); + cap = DIV_ROUND_CLOSEST(cap, 1000); + if (cap > resource->caps.max_cap || cap < resource->caps.min_cap) + return -EINVAL; + + arg0.integer.value = cap; + status = acpi_evaluate_integer(resource->acpi_dev->handle, "_SHL", + &args, &data); + if (ACPI_FAILURE(status)) { + acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_SHL", + status); + return -EINVAL; } + resource->cap = cap; - remove_domain_devices(resource); + /* _SHL returns 0 on success, nonzero otherwise */ + if (data) + return -EINVAL; - resource->num_sensors = 0; + return 0; } -static int setup_attrs(struct acpi_power_meter_resource *resource) +static int set_avg_interval(struct acpi_power_meter_resource *resource, + unsigned long val) { - int res = 0; + union acpi_object arg0 = { ACPI_TYPE_INTEGER }; + struct acpi_object_list args = { 1, &arg0 }; + unsigned long long data; + acpi_status status; - /* _PMD method is optional. */ - res = read_domain_devices(resource); - if (res && res != -ENODEV) - return res; + if (val > resource->caps.max_avg_interval || + val < resource->caps.min_avg_interval) + return -EINVAL; - if (resource->caps.flags & POWER_METER_CAN_MEASURE) { - res = register_attrs(resource, meter_attrs); - if (res) - goto error; + arg0.integer.value = val; + status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PAI", + &args, &data); + if (ACPI_FAILURE(status)) { + acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PAI", + status); + return -EINVAL; } + resource->avg_interval = val; - if (resource->caps.flags & POWER_METER_CAN_CAP) { - if (!can_cap_in_hardware()) { - dev_warn(&resource->acpi_dev->dev, - "Ignoring unsafe software power cap!\n"); - goto skip_unsafe_cap; + /* _PAI returns 0 on success, nonzero otherwise */ + if (data) + return -EINVAL; + + return 0; +} + +static int get_power_alarm_state(struct acpi_power_meter_resource *resource, + long *val) +{ + int ret; + + ret = update_meter(resource); + if (ret) + return ret; + + /* need to update cap if not to support the notification. */ + if (!(resource->caps.flags & POWER_METER_CAN_NOTIFY)) { + ret = update_cap(resource); + if (ret) + return ret; + resource->power_alarm = resource->power > resource->cap; + *val = resource->power_alarm; + } else { + *val = resource->power_alarm || resource->power > resource->cap; + resource->power_alarm = resource->power > resource->cap; + } + + return 0; +} + +static umode_t power_meter_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + const struct acpi_power_meter_resource *res = data; + + if (type != hwmon_power) + return 0; + + switch (attr) { + case hwmon_power_average: + case hwmon_power_average_interval_min: + case hwmon_power_average_interval_max: + if (res->caps.flags & POWER_METER_CAN_MEASURE) + return 0444; + break; + case hwmon_power_average_interval: + if (res->caps.flags & POWER_METER_CAN_MEASURE) + return 0644; + break; + case hwmon_power_cap_min: + case hwmon_power_cap_max: + case hwmon_power_alarm: + if (res->caps.flags & POWER_METER_CAN_CAP && can_cap_in_hardware()) + return 0444; + break; + case hwmon_power_cap: + if (res->caps.flags & POWER_METER_CAN_CAP && can_cap_in_hardware()) { + if (res->caps.configurable_cap) + return 0644; + else + return 0444; } + break; + default: + break; + } + + return 0; +} - if (resource->caps.configurable_cap) - res = register_attrs(resource, rw_cap_attrs); - else - res = register_attrs(resource, ro_cap_attrs); +static int power_meter_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + int ret = 0; - if (res) - goto error; + if (type != hwmon_power) + return -EINVAL; - res = register_attrs(resource, misc_cap_attrs); - if (res) - goto error; + guard(mutex)(&res->lock); + + switch (attr) { + case hwmon_power_average: + ret = update_meter(res); + if (ret) + return ret; + if (res->power == UNKNOWN_POWER) + return -ENODATA; + *val = res->power * 1000; + break; + case hwmon_power_average_interval_min: + *val = res->caps.min_avg_interval; + break; + case hwmon_power_average_interval_max: + *val = res->caps.max_avg_interval; + break; + case hwmon_power_average_interval: + ret = update_avg_interval(res); + if (ret) + return ret; + *val = (res)->avg_interval; + break; + case hwmon_power_cap_min: + *val = res->caps.min_cap * 1000; + break; + case hwmon_power_cap_max: + *val = res->caps.max_cap * 1000; + break; + case hwmon_power_alarm: + ret = get_power_alarm_state(res, val); + if (ret) + return ret; + break; + case hwmon_power_cap: + ret = update_cap(res); + if (ret) + return ret; + *val = res->cap * 1000; + break; + default: + break; } -skip_unsafe_cap: - if (resource->caps.flags & POWER_METER_CAN_TRIP) { - res = register_attrs(resource, trip_attrs); - if (res) - goto error; + return 0; +} + +static int power_meter_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + int ret; + + if (type != hwmon_power) + return -EINVAL; + + guard(mutex)(&res->lock); + switch (attr) { + case hwmon_power_cap: + ret = set_cap(res, val); + break; + case hwmon_power_average_interval: + ret = set_avg_interval(res, val); + break; + default: + ret = -EOPNOTSUPP; } - res = register_attrs(resource, misc_attrs); - if (res) - goto error; + return ret; +} - return res; -error: - remove_attrs(resource); - return res; +static const struct hwmon_channel_info * const power_meter_info[] = { + HWMON_CHANNEL_INFO(power, HWMON_P_AVERAGE | + HWMON_P_AVERAGE_INTERVAL | HWMON_P_AVERAGE_INTERVAL_MIN | + HWMON_P_AVERAGE_INTERVAL_MAX | HWMON_P_CAP | HWMON_P_CAP_MIN | + HWMON_P_CAP_MAX | HWMON_P_ALARM), + NULL +}; + +static const struct hwmon_ops power_meter_ops = { + .is_visible = power_meter_is_visible, + .read = power_meter_read, + .write = power_meter_write, +}; + +static const struct hwmon_chip_info power_meter_chip_info = { + .ops = &power_meter_ops, + .info = power_meter_info, +}; + +static ssize_t power1_average_max_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + unsigned long trip; + int ret; + + ret = kstrtoul(buf, 10, &trip); + if (ret) + return ret; + + mutex_lock(&res->lock); + ret = set_trip(res, POWER_METER_TRIP_AVERAGE_MAX_IDX, trip); + mutex_unlock(&res->lock); + + return ret == 0 ? count : ret; +} + +static ssize_t power1_average_min_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + unsigned long trip; + int ret; + + ret = kstrtoul(buf, 10, &trip); + if (ret) + return ret; + + mutex_lock(&res->lock); + ret = set_trip(res, POWER_METER_TRIP_AVERAGE_MIN_IDX, trip); + mutex_unlock(&res->lock); + + return ret == 0 ? count : ret; +} + +static ssize_t power1_average_min_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + if (res->trip[POWER_METER_TRIP_AVERAGE_MIN_IDX] < 0) + return sysfs_emit(buf, "unknown\n"); + + return sysfs_emit(buf, "%lld\n", + res->trip[POWER_METER_TRIP_AVERAGE_MIN_IDX] * 1000); +} + +static ssize_t power1_average_max_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + if (res->trip[POWER_METER_TRIP_AVERAGE_MAX_IDX] < 0) + return sysfs_emit(buf, "unknown\n"); + + return sysfs_emit(buf, "%lld\n", + res->trip[POWER_METER_TRIP_AVERAGE_MAX_IDX] * 1000); +} + +static ssize_t power1_cap_hyst_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + if (res->caps.hysteresis == UNKNOWN_HYSTERESIS) + return sysfs_emit(buf, "unknown\n"); + + return sysfs_emit(buf, "%llu\n", res->caps.hysteresis * 1000); +} + +static ssize_t power1_accuracy_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + unsigned int acc = res->caps.accuracy; + + return sysfs_emit(buf, "%u.%u%%\n", acc / 1000, acc % 1000); } +static ssize_t power1_is_battery_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%u\n", + res->caps.flags & POWER_METER_IS_BATTERY ? 1 : 0); +} + +static ssize_t power1_model_number_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%s\n", res->model_number); +} + +static ssize_t power1_oem_info_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%s\n", res->oem_info); +} + +static ssize_t power1_serial_number_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%s\n", res->serial_number); +} + +/* depend on POWER_METER_CAN_TRIP */ +static DEVICE_ATTR_RW(power1_average_max); +static DEVICE_ATTR_RW(power1_average_min); + +/* depend on POWER_METER_CAN_CAP */ +static DEVICE_ATTR_RO(power1_cap_hyst); + +/* depend on POWER_METER_CAN_MEASURE */ +static DEVICE_ATTR_RO(power1_accuracy); +static DEVICE_ATTR_RO(power1_is_battery); + +static DEVICE_ATTR_RO(power1_model_number); +static DEVICE_ATTR_RO(power1_oem_info); +static DEVICE_ATTR_RO(power1_serial_number); + +static umode_t power_extra_is_visible(struct kobject *kobj, + struct attribute *attr, int idx) +{ + struct device *dev = kobj_to_dev(kobj); + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + if (attr == &dev_attr_power1_is_battery.attr || + attr == &dev_attr_power1_accuracy.attr) { + if ((res->caps.flags & POWER_METER_CAN_MEASURE) == 0) + return 0; + } + + if (attr == &dev_attr_power1_cap_hyst.attr) { + if ((res->caps.flags & POWER_METER_CAN_CAP) == 0) { + return 0; + } else if (!can_cap_in_hardware()) { + dev_warn(&res->acpi_dev->dev, + "Ignoring unsafe software power cap!\n"); + return 0; + } + } + + if (attr == &dev_attr_power1_average_max.attr || + attr == &dev_attr_power1_average_min.attr) { + if ((res->caps.flags & POWER_METER_CAN_TRIP) == 0) + return 0; + } + + return attr->mode; +} + +static struct attribute *power_extra_attrs[] = { + &dev_attr_power1_average_max.attr, + &dev_attr_power1_average_min.attr, + &dev_attr_power1_cap_hyst.attr, + &dev_attr_power1_accuracy.attr, + &dev_attr_power1_is_battery.attr, + &dev_attr_power1_model_number.attr, + &dev_attr_power1_oem_info.attr, + &dev_attr_power1_serial_number.attr, + NULL +}; + +static const struct attribute_group power_extra_group = { + .attrs = power_extra_attrs, + .is_visible = power_extra_is_visible, +}; + +__ATTRIBUTE_GROUPS(power_extra); + static void free_capabilities(struct acpi_power_meter_resource *resource) { acpi_string *str; @@ -835,24 +827,42 @@ static void acpi_power_meter_notify(struct acpi_device *device, u32 event) case METER_NOTIFY_CONFIG: mutex_lock(&resource->lock); free_capabilities(resource); + remove_domain_devices(resource); + hwmon_device_unregister(resource->hwmon_dev); res = read_capabilities(resource); - mutex_unlock(&resource->lock); if (res) - break; - - remove_attrs(resource); - setup_attrs(resource); + dev_err_once(&device->dev, "read capabilities failed.\n"); + res = read_domain_devices(resource); + if (res && res != -ENODEV) + dev_err_once(&device->dev, "read domain devices failed.\n"); + resource->hwmon_dev = + hwmon_device_register_with_info(&device->dev, + ACPI_POWER_METER_NAME, + resource, + &power_meter_chip_info, + power_extra_groups); + if (IS_ERR(resource->hwmon_dev)) + dev_err_once(&device->dev, "register hwmon device failed.\n"); + mutex_unlock(&resource->lock); break; case METER_NOTIFY_TRIP: sysfs_notify(&device->dev.kobj, NULL, POWER_AVERAGE_NAME); break; case METER_NOTIFY_CAP: + mutex_lock(&resource->lock); + res = update_cap(resource); + if (res) + dev_err_once(&device->dev, "update cap failed when capping value is changed.\n"); + mutex_unlock(&resource->lock); sysfs_notify(&device->dev.kobj, NULL, POWER_CAP_NAME); break; case METER_NOTIFY_INTERVAL: sysfs_notify(&device->dev.kobj, NULL, POWER_AVG_INTERVAL_NAME); break; case METER_NOTIFY_CAPPING: + mutex_lock(&resource->lock); + resource->power_alarm = true; + mutex_unlock(&resource->lock); sysfs_notify(&device->dev.kobj, NULL, POWER_ALARM_NAME); dev_info(&device->dev, "Capping in progress.\n"); break; @@ -895,7 +905,7 @@ static int acpi_power_meter_add(struct acpi_device *device) struct acpi_device *ipi_device = acpi_dev_get_first_match_dev("IPI0001", NULL, -1); if (ipi_device && acpi_wait_for_acpi_ipmi()) - dev_warn(&device->dev, "Waiting for ACPI IPMI timeout"); + dev_warn(&device->dev, "Waiting for ACPI IPMI timeout"); acpi_dev_put(ipi_device); } #endif @@ -907,11 +917,16 @@ static int acpi_power_meter_add(struct acpi_device *device) resource->trip[0] = -1; resource->trip[1] = -1; - res = setup_attrs(resource); - if (res) + /* _PMD method is optional. */ + res = read_domain_devices(resource); + if (res && res != -ENODEV) goto exit_free_capability; - resource->hwmon_dev = hwmon_device_register(&device->dev); + resource->hwmon_dev = + hwmon_device_register_with_info(&device->dev, + ACPI_POWER_METER_NAME, resource, + &power_meter_chip_info, + power_extra_groups); if (IS_ERR(resource->hwmon_dev)) { res = PTR_ERR(resource->hwmon_dev); goto exit_remove; @@ -921,7 +936,7 @@ static int acpi_power_meter_add(struct acpi_device *device) goto exit; exit_remove: - remove_attrs(resource); + remove_domain_devices(resource); exit_free_capability: free_capabilities(resource); exit_free: @@ -940,7 +955,7 @@ static void acpi_power_meter_remove(struct acpi_device *device) resource = acpi_driver_data(device); hwmon_device_unregister(resource->hwmon_dev); - remove_attrs(resource); + remove_domain_devices(resource); free_capabilities(resource); kfree(resource); diff --git a/drivers/hwmon/aht10.c b/drivers/hwmon/aht10.c index 312ef3e98754..d1c55e2eb479 100644 --- a/drivers/hwmon/aht10.c +++ b/drivers/hwmon/aht10.c @@ -94,7 +94,7 @@ struct aht10_data { unsigned int meas_size; }; -/** +/* * aht10_init() - Initialize an AHT10/AHT20 chip * @data: the data associated with this AHT10/AHT20 chip * Return: 0 if successful, 1 if not @@ -124,7 +124,7 @@ static int aht10_init(struct aht10_data *data) return 0; } -/** +/* * aht10_polltime_expired() - check if the minimum poll interval has * expired * @data: the data containing the time to compare @@ -140,7 +140,7 @@ static int aht10_polltime_expired(struct aht10_data *data) DECLARE_CRC8_TABLE(crc8_table); -/** +/* * crc8_check() - check crc of the sensor's measurements * @raw_data: data frame received from sensor(including crc as the last byte) * @count: size of the data frame @@ -155,7 +155,7 @@ static int crc8_check(u8 *raw_data, int count) return crc8(crc8_table, raw_data, count, CRC8_INIT_VALUE); } -/** +/* * aht10_read_values() - read and parse the raw data from the AHT10/AHT20 * @data: the struct aht10_data to use for the lock * Return: 0 if successful, 1 if not @@ -214,7 +214,7 @@ static int aht10_read_values(struct aht10_data *data) return 0; } -/** +/* * aht10_interval_write() - store the given minimum poll interval. * Return: 0 on success, -EINVAL if a value lower than the * AHT10_MIN_POLL_INTERVAL is given @@ -226,7 +226,7 @@ static ssize_t aht10_interval_write(struct aht10_data *data, return 0; } -/** +/* * aht10_interval_read() - read the minimum poll interval * in milliseconds */ @@ -237,7 +237,7 @@ static ssize_t aht10_interval_read(struct aht10_data *data, return 0; } -/** +/* * aht10_temperature1_read() - read the temperature in millidegrees */ static int aht10_temperature1_read(struct aht10_data *data, long *val) @@ -252,7 +252,7 @@ static int aht10_temperature1_read(struct aht10_data *data, long *val) return 0; } -/** +/* * aht10_humidity1_read() - read the relative humidity in millipercent */ static int aht10_humidity1_read(struct aht10_data *data, long *val) diff --git a/drivers/hwmon/amc6821.c b/drivers/hwmon/amc6821.c index 1e3c6acd8974..13a789cc85d2 100644 --- a/drivers/hwmon/amc6821.c +++ b/drivers/hwmon/amc6821.c @@ -23,9 +23,12 @@ #include <linux/module.h> #include <linux/mutex.h> #include <linux/of_platform.h> +#include <linux/pwm.h> #include <linux/regmap.h> #include <linux/slab.h> +#include <dt-bindings/pwm/pwm.h> + /* * Addresses to scan. */ @@ -37,7 +40,7 @@ static const unsigned short normal_i2c[] = {0x18, 0x19, 0x1a, 0x2c, 0x2d, 0x2e, * Insmod parameters */ -static int pwminv; /*Inverted PWM output. */ +static int pwminv = -1; /*Inverted PWM output. */ module_param(pwminv, int, 0444); static int init = 1; /*Power-on initialization.*/ @@ -845,9 +848,43 @@ static int amc6821_detect(struct i2c_client *client, struct i2c_board_info *info return 0; } -static int amc6821_init_client(struct amc6821_data *data) +static enum pwm_polarity amc6821_pwm_polarity(struct i2c_client *client) +{ + enum pwm_polarity polarity = PWM_POLARITY_NORMAL; + struct of_phandle_args args; + struct device_node *fan_np; + + /* + * For backward compatibility, the pwminv module parameter takes + * always the precedence over any other device description + */ + if (pwminv == 0) + return PWM_POLARITY_NORMAL; + if (pwminv > 0) + return PWM_POLARITY_INVERSED; + + fan_np = of_get_child_by_name(client->dev.of_node, "fan"); + if (!fan_np) + return PWM_POLARITY_NORMAL; + + if (of_parse_phandle_with_args(fan_np, "pwms", "#pwm-cells", 0, &args)) + goto out; + of_node_put(args.np); + + if (args.args_count != 2) + goto out; + + if (args.args[1] & PWM_POLARITY_INVERTED) + polarity = PWM_POLARITY_INVERSED; +out: + of_node_put(fan_np); + return polarity; +} + +static int amc6821_init_client(struct i2c_client *client, struct amc6821_data *data) { struct regmap *regmap = data->regmap; + u32 regval; int err; if (init) { @@ -864,11 +901,14 @@ static int amc6821_init_client(struct amc6821_data *data) if (err) return err; + regval = AMC6821_CONF1_START; + if (amc6821_pwm_polarity(client) == PWM_POLARITY_INVERSED) + regval |= AMC6821_CONF1_PWMINV; + err = regmap_update_bits(regmap, AMC6821_REG_CONF1, AMC6821_CONF1_THERMOVIE | AMC6821_CONF1_FANIE | AMC6821_CONF1_START | AMC6821_CONF1_PWMINV, - AMC6821_CONF1_START | - (pwminv ? AMC6821_CONF1_PWMINV : 0)); + regval); if (err) return err; } @@ -916,7 +956,7 @@ static int amc6821_probe(struct i2c_client *client) "Failed to initialize regmap\n"); data->regmap = regmap; - err = amc6821_init_client(data); + err = amc6821_init_client(client, data); if (err) return err; diff --git a/drivers/hwmon/asus-ec-sensors.c b/drivers/hwmon/asus-ec-sensors.c index 9555366aeaf0..e0a95197c71b 100644 --- a/drivers/hwmon/asus-ec-sensors.c +++ b/drivers/hwmon/asus-ec-sensors.c @@ -169,7 +169,11 @@ enum board_family { family_intel_600_series }; -/* All the known sensors for ASUS EC controllers */ +/* + * All the known sensors for ASUS EC controllers. These arrays have to be sorted + * by the full ((bank << 8) + index) register index (see asus_ec_block_read() as + * to why). + */ static const struct ec_sensor_info sensors_family_amd_400[] = { [ec_sensor_temp_chipset] = EC_SENSOR("Chipset", hwmon_temp, 1, 0x00, 0x3a), @@ -183,10 +187,10 @@ static const struct ec_sensor_info sensors_family_amd_400[] = { EC_SENSOR("VRM", hwmon_temp, 1, 0x00, 0x3e), [ec_sensor_in_cpu_core] = EC_SENSOR("CPU Core", hwmon_in, 2, 0x00, 0xa2), - [ec_sensor_fan_cpu_opt] = - EC_SENSOR("CPU_Opt", hwmon_fan, 2, 0x00, 0xbc), [ec_sensor_fan_vrm_hs] = EC_SENSOR("VRM HS", hwmon_fan, 2, 0x00, 0xb2), + [ec_sensor_fan_cpu_opt] = + EC_SENSOR("CPU_Opt", hwmon_fan, 2, 0x00, 0xbc), [ec_sensor_fan_chipset] = /* no chipset fans in this generation */ EC_SENSOR("Chipset", hwmon_fan, 0, 0x00, 0x00), @@ -194,10 +198,10 @@ static const struct ec_sensor_info sensors_family_amd_400[] = { EC_SENSOR("Water_Flow", hwmon_fan, 2, 0x00, 0xb4), [ec_sensor_curr_cpu] = EC_SENSOR("CPU", hwmon_curr, 1, 0x00, 0xf4), - [ec_sensor_temp_water_in] = - EC_SENSOR("Water_In", hwmon_temp, 1, 0x01, 0x0d), [ec_sensor_temp_water_out] = EC_SENSOR("Water_Out", hwmon_temp, 1, 0x01, 0x0b), + [ec_sensor_temp_water_in] = + EC_SENSOR("Water_In", hwmon_temp, 1, 0x01, 0x0d), }; static const struct ec_sensor_info sensors_family_amd_500[] = { @@ -239,13 +243,16 @@ static const struct ec_sensor_info sensors_family_amd_500[] = { static const struct ec_sensor_info sensors_family_amd_600[] = { [ec_sensor_temp_cpu] = EC_SENSOR("CPU", hwmon_temp, 1, 0x00, 0x30), - [ec_sensor_temp_cpu_package] = EC_SENSOR("CPU Package", hwmon_temp, 1, 0x00, 0x31), + [ec_sensor_temp_cpu_package] = + EC_SENSOR("CPU Package", hwmon_temp, 1, 0x00, 0x31), [ec_sensor_temp_mb] = EC_SENSOR("Motherboard", hwmon_temp, 1, 0x00, 0x32), [ec_sensor_temp_vrm] = EC_SENSOR("VRM", hwmon_temp, 1, 0x00, 0x33), [ec_sensor_temp_t_sensor] = EC_SENSOR("T_Sensor", hwmon_temp, 1, 0x00, 0x36), + [ec_sensor_fan_cpu_opt] = + EC_SENSOR("CPU_Opt", hwmon_fan, 2, 0x00, 0xb0), [ec_sensor_temp_water_in] = EC_SENSOR("Water_In", hwmon_temp, 1, 0x01, 0x00), [ec_sensor_temp_water_out] = @@ -276,6 +283,14 @@ static const struct ec_sensor_info sensors_family_intel_600[] = { [ec_sensor_temp_t_sensor] = EC_SENSOR("T_Sensor", hwmon_temp, 1, 0x00, 0x3d), [ec_sensor_temp_vrm] = EC_SENSOR("VRM", hwmon_temp, 1, 0x00, 0x3e), + [ec_sensor_fan_water_flow] = + EC_SENSOR("Water_Flow", hwmon_fan, 2, 0x00, 0xbe), + [ec_sensor_temp_water_in] = + EC_SENSOR("Water_In", hwmon_temp, 1, 0x01, 0x00), + [ec_sensor_temp_water_out] = + EC_SENSOR("Water_Out", hwmon_temp, 1, 0x01, 0x01), + [ec_sensor_temp_water_block_in] = + EC_SENSOR("Water_Block_In", hwmon_temp, 1, 0x01, 0x02), }; /* Shortcuts for common combinations */ @@ -298,6 +313,15 @@ struct ec_board_info { enum board_family family; }; +static const struct ec_board_info board_info_maximus_vi_hero = { + .sensors = SENSOR_SET_TEMP_CHIPSET_CPU_MB | + SENSOR_TEMP_T_SENSOR | + SENSOR_TEMP_VRM | SENSOR_SET_TEMP_WATER | + SENSOR_FAN_CPU_OPT | SENSOR_FAN_WATER_FLOW, + .mutex_path = ACPI_GLOBAL_LOCK_PSEUDO_PATH, + .family = family_intel_300_series, +}; + static const struct ec_board_info board_info_prime_x470_pro = { .sensors = SENSOR_SET_TEMP_CHIPSET_CPU_MB | SENSOR_TEMP_T_SENSOR | SENSOR_TEMP_VRM | @@ -314,6 +338,14 @@ static const struct ec_board_info board_info_prime_x570_pro = { .family = family_amd_500_series, }; +static const struct ec_board_info board_info_prime_x670e_pro_wifi = { + .sensors = SENSOR_TEMP_CPU | SENSOR_TEMP_CPU_PACKAGE | + SENSOR_TEMP_MB | SENSOR_TEMP_VRM | + SENSOR_TEMP_T_SENSOR | SENSOR_FAN_CPU_OPT, + .mutex_path = ACPI_GLOBAL_LOCK_PSEUDO_PATH, + .family = family_amd_600_series, +}; + static const struct ec_board_info board_info_pro_art_x570_creator_wifi = { .sensors = SENSOR_SET_TEMP_CHIPSET_CPU_MB | SENSOR_TEMP_VRM | SENSOR_TEMP_T_SENSOR | SENSOR_FAN_CPU_OPT | @@ -392,6 +424,13 @@ static const struct ec_board_info board_info_maximus_xi_hero = { .family = family_intel_300_series, }; +static const struct ec_board_info board_info_maximus_z690_formula = { + .sensors = SENSOR_TEMP_T_SENSOR | SENSOR_TEMP_VRM | + SENSOR_SET_TEMP_WATER | SENSOR_FAN_WATER_FLOW, + .mutex_path = ASUS_HW_ACCESS_MUTEX_RMTW_ASMX, + .family = family_intel_600_series, +}; + static const struct ec_board_info board_info_crosshair_viii_impact = { .sensors = SENSOR_SET_TEMP_CHIPSET_CPU_MB | SENSOR_TEMP_T_SENSOR | SENSOR_TEMP_VRM | @@ -477,6 +516,15 @@ static const struct ec_board_info board_info_zenith_ii_extreme = { .family = family_amd_500_series, }; +static const struct ec_board_info board_info_tuf_gaming_x670e_plus = { + .sensors = SENSOR_TEMP_CPU | SENSOR_TEMP_CPU_PACKAGE | + SENSOR_TEMP_MB | SENSOR_TEMP_VRM | + SENSOR_TEMP_WATER_IN | SENSOR_TEMP_WATER_OUT | + SENSOR_FAN_CPU_OPT, + .mutex_path = ACPI_GLOBAL_LOCK_PSEUDO_PATH, + .family = family_amd_600_series, +}; + #define DMI_EXACT_MATCH_ASUS_BOARD_NAME(name, board_info) \ { \ .matches = { \ @@ -488,10 +536,14 @@ static const struct ec_board_info board_info_zenith_ii_extreme = { } static const struct dmi_system_id dmi_table[] = { + DMI_EXACT_MATCH_ASUS_BOARD_NAME("MAXIMUS VI HERO", + &board_info_maximus_vi_hero), DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME X470-PRO", &board_info_prime_x470_pro), DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME X570-PRO", &board_info_prime_x570_pro), + DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME X670E-PRO WIFI", + &board_info_prime_x670e_pro_wifi), DMI_EXACT_MATCH_ASUS_BOARD_NAME("ProArt X570-CREATOR WIFI", &board_info_pro_art_x570_creator_wifi), DMI_EXACT_MATCH_ASUS_BOARD_NAME("ProArt X670E-CREATOR WIFI", @@ -516,6 +568,8 @@ static const struct dmi_system_id dmi_table[] = { &board_info_maximus_xi_hero), DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG MAXIMUS XI HERO (WI-FI)", &board_info_maximus_xi_hero), + DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG MAXIMUS Z690 FORMULA", + &board_info_maximus_z690_formula), DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VIII IMPACT", &board_info_crosshair_viii_impact), DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX B550-E GAMING", @@ -538,6 +592,8 @@ static const struct dmi_system_id dmi_table[] = { &board_info_zenith_ii_extreme), DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG ZENITH II EXTREME ALPHA", &board_info_zenith_ii_extreme), + DMI_EXACT_MATCH_ASUS_BOARD_NAME("TUF GAMING X670E-PLUS", + &board_info_tuf_gaming_x670e_plus), {}, }; @@ -910,6 +966,10 @@ static int asus_ec_hwmon_read_string(struct device *dev, { struct ec_sensors_data *state = dev_get_drvdata(dev); int sensor_index = find_ec_sensor_index(state, type, channel); + + if (sensor_index < 0) + return sensor_index; + *str = get_sensor_info(state, sensor_index)->label; return 0; diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c index 1dc7e24fe4c5..c80350e499e9 100644 --- a/drivers/hwmon/asus_atk0110.c +++ b/drivers/hwmon/asus_atk0110.c @@ -17,6 +17,7 @@ #include <linux/jiffies.h> #include <linux/err.h> #include <linux/acpi.h> +#include <linux/string_choices.h> #define ATK_HID "ATK0110" @@ -441,7 +442,7 @@ static void atk_print_sensor(struct atk_data *data, union acpi_object *obj) flags->integer.value, name->string.pointer, limit1->integer.value, limit2->integer.value, - enable->integer.value ? "enabled" : "disabled"); + str_enabled_disabled(enable->integer.value)); #endif } @@ -1074,8 +1075,7 @@ static int atk_ec_enabled(struct atk_data *data) err = -EIO; } else { err = (buf->value != 0); - dev_dbg(dev, "EC is %sabled\n", - err ? "en" : "dis"); + dev_dbg(dev, "EC is %s\n", str_enabled_disabled(err)); } ACPI_FREE(obj); @@ -1096,18 +1096,15 @@ static int atk_ec_ctl(struct atk_data *data, int enable) obj = atk_sitm(data, &sitm); if (IS_ERR(obj)) { - dev_err(dev, "Failed to %sable the EC\n", - enable ? "en" : "dis"); + dev_err(dev, "Failed to %s the EC\n", str_enable_disable(enable)); return PTR_ERR(obj); } ec_ret = (struct atk_acpi_ret_buffer *)obj->buffer.pointer; if (ec_ret->flags == 0) { - dev_err(dev, "Failed to %sable the EC\n", - enable ? "en" : "dis"); + dev_err(dev, "Failed to %s the EC\n", str_enable_disable(enable)); err = -EIO; } else { - dev_info(dev, "EC %sabled\n", - enable ? "en" : "dis"); + dev_info(dev, "EC %s\n", str_enabled_disabled(enable)); } ACPI_FREE(obj); diff --git a/drivers/hwmon/cgbc-hwmon.c b/drivers/hwmon/cgbc-hwmon.c new file mode 100644 index 000000000000..772f44d56ccf --- /dev/null +++ b/drivers/hwmon/cgbc-hwmon.c @@ -0,0 +1,304 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * cgbc-hwmon - Congatec Board Controller hardware monitoring driver + * + * Copyright (C) 2024 Thomas Richard <thomas.richard@bootlin.com> + */ + +#include <linux/bitfield.h> +#include <linux/device.h> +#include <linux/hwmon.h> +#include <linux/mfd/cgbc.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#define CGBC_HWMON_CMD_SENSOR 0x77 +#define CGBC_HWMON_CMD_SENSOR_DATA_SIZE 0x05 + +#define CGBC_HWMON_TYPE_MASK GENMASK(6, 5) +#define CGBC_HWMON_ID_MASK GENMASK(4, 0) +#define CGBC_HWMON_ACTIVE_BIT BIT(7) + +struct cgbc_hwmon_sensor { + enum hwmon_sensor_types type; + bool active; + unsigned int index; + unsigned int channel; + const char *label; +}; + +struct cgbc_hwmon_data { + struct cgbc_device_data *cgbc; + unsigned int nb_sensors; + struct cgbc_hwmon_sensor *sensors; +}; + +enum cgbc_sensor_types { + CGBC_HWMON_TYPE_TEMP = 1, + CGBC_HWMON_TYPE_IN, + CGBC_HWMON_TYPE_FAN +}; + +static const char * const cgbc_hwmon_labels_temp[] = { + "CPU Temperature", + "Box Temperature", + "Ambient Temperature", + "Board Temperature", + "Carrier Temperature", + "Chipset Temperature", + "Video Temperature", + "Other Temperature", + "TOPDIM Temperature", + "BOTTOMDIM Temperature", +}; + +static const struct { + enum hwmon_sensor_types type; + const char *label; +} cgbc_hwmon_labels_in[] = { + { hwmon_in, "CPU Voltage" }, + { hwmon_in, "DC Runtime Voltage" }, + { hwmon_in, "DC Standby Voltage" }, + { hwmon_in, "CMOS Battery Voltage" }, + { hwmon_in, "Battery Voltage" }, + { hwmon_in, "AC Voltage" }, + { hwmon_in, "Other Voltage" }, + { hwmon_in, "5V Voltage" }, + { hwmon_in, "5V Standby Voltage" }, + { hwmon_in, "3V3 Voltage" }, + { hwmon_in, "3V3 Standby Voltage" }, + { hwmon_in, "VCore A Voltage" }, + { hwmon_in, "VCore B Voltage" }, + { hwmon_in, "12V Voltage" }, + { hwmon_curr, "DC Current" }, + { hwmon_curr, "5V Current" }, + { hwmon_curr, "12V Current" }, +}; + +#define CGBC_HWMON_NB_IN_SENSORS 14 + +static const char * const cgbc_hwmon_labels_fan[] = { + "CPU Fan", + "Box Fan", + "Ambient Fan", + "Chipset Fan", + "Video Fan", + "Other Fan", +}; + +static int cgbc_hwmon_cmd(struct cgbc_device_data *cgbc, u8 index, u8 *data) +{ + u8 cmd[2] = {CGBC_HWMON_CMD_SENSOR, index}; + + return cgbc_command(cgbc, cmd, sizeof(cmd), data, CGBC_HWMON_CMD_SENSOR_DATA_SIZE, NULL); +} + +static int cgbc_hwmon_probe_sensors(struct device *dev, struct cgbc_hwmon_data *hwmon) +{ + struct cgbc_device_data *cgbc = hwmon->cgbc; + struct cgbc_hwmon_sensor *sensor = hwmon->sensors; + u8 data[CGBC_HWMON_CMD_SENSOR_DATA_SIZE], nb_sensors, i; + int ret; + + ret = cgbc_hwmon_cmd(cgbc, 0, &data[0]); + if (ret) + return ret; + + nb_sensors = data[0]; + + hwmon->sensors = devm_kzalloc(dev, sizeof(*hwmon->sensors) * nb_sensors, GFP_KERNEL); + sensor = hwmon->sensors; + + for (i = 0; i < nb_sensors; i++) { + enum cgbc_sensor_types type; + unsigned int channel; + + /* + * No need to request data for the first sensor. + * We got data for the first sensor when we ask the number of sensors to the Board + * Controller. + */ + if (i) { + ret = cgbc_hwmon_cmd(cgbc, i, &data[0]); + if (ret) + return ret; + } + + type = FIELD_GET(CGBC_HWMON_TYPE_MASK, data[1]); + channel = FIELD_GET(CGBC_HWMON_ID_MASK, data[1]) - 1; + + if (type == CGBC_HWMON_TYPE_TEMP && channel < ARRAY_SIZE(cgbc_hwmon_labels_temp)) { + sensor->type = hwmon_temp; + sensor->label = cgbc_hwmon_labels_temp[channel]; + } else if (type == CGBC_HWMON_TYPE_IN && + channel < ARRAY_SIZE(cgbc_hwmon_labels_in)) { + /* + * The Board Controller doesn't differentiate current and voltage sensors. + * Get the sensor type from cgbc_hwmon_labels_in[channel].type instead. + */ + sensor->type = cgbc_hwmon_labels_in[channel].type; + sensor->label = cgbc_hwmon_labels_in[channel].label; + } else if (type == CGBC_HWMON_TYPE_FAN && + channel < ARRAY_SIZE(cgbc_hwmon_labels_fan)) { + sensor->type = hwmon_fan; + sensor->label = cgbc_hwmon_labels_fan[channel]; + } else { + dev_warn(dev, "Board Controller returned an unknown sensor (type=%d, channel=%d), ignore it", + type, channel); + continue; + } + + sensor->active = FIELD_GET(CGBC_HWMON_ACTIVE_BIT, data[1]); + sensor->channel = channel; + sensor->index = i; + sensor++; + hwmon->nb_sensors++; + } + + return 0; +} + +static struct cgbc_hwmon_sensor *cgbc_hwmon_find_sensor(struct cgbc_hwmon_data *hwmon, + enum hwmon_sensor_types type, int channel) +{ + struct cgbc_hwmon_sensor *sensor = NULL; + int i; + + /* + * The Board Controller doesn't differentiate current and voltage sensors. + * The channel value (from the Board Controller point of view) shall be computed for current + * sensors. + */ + if (type == hwmon_curr) + channel += CGBC_HWMON_NB_IN_SENSORS; + + for (i = 0; i < hwmon->nb_sensors; i++) { + if (hwmon->sensors[i].type == type && hwmon->sensors[i].channel == channel) { + sensor = &hwmon->sensors[i]; + break; + } + } + + return sensor; +} + +static int cgbc_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, + long *val) +{ + struct cgbc_hwmon_data *hwmon = dev_get_drvdata(dev); + struct cgbc_hwmon_sensor *sensor = cgbc_hwmon_find_sensor(hwmon, type, channel); + struct cgbc_device_data *cgbc = hwmon->cgbc; + u8 data[CGBC_HWMON_CMD_SENSOR_DATA_SIZE]; + int ret; + + ret = cgbc_hwmon_cmd(cgbc, sensor->index, &data[0]); + if (ret) + return ret; + + *val = (data[3] << 8) | data[2]; + + /* + * For the Board Controller 1lsb = 0.1 degree centigrade. + * Other units are as expected. + */ + if (sensor->type == hwmon_temp) + *val *= 100; + + return 0; +} + +static umode_t cgbc_hwmon_is_visible(const void *_data, enum hwmon_sensor_types type, u32 attr, + int channel) +{ + struct cgbc_hwmon_data *data = (struct cgbc_hwmon_data *)_data; + struct cgbc_hwmon_sensor *sensor; + + sensor = cgbc_hwmon_find_sensor(data, type, channel); + if (!sensor) + return 0; + + return sensor->active ? 0444 : 0; +} + +static int cgbc_hwmon_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr, + int channel, const char **str) +{ + struct cgbc_hwmon_data *hwmon = dev_get_drvdata(dev); + struct cgbc_hwmon_sensor *sensor = cgbc_hwmon_find_sensor(hwmon, type, channel); + + *str = sensor->label; + + return 0; +} + +static const struct hwmon_channel_info * const cgbc_hwmon_info[] = { + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_LABEL, HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, HWMON_T_INPUT | HWMON_T_LABEL), + HWMON_CHANNEL_INFO(in, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL), + HWMON_CHANNEL_INFO(curr, + HWMON_C_INPUT | HWMON_C_LABEL, HWMON_C_INPUT | HWMON_C_LABEL, + HWMON_C_INPUT | HWMON_C_LABEL), + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT | HWMON_F_LABEL, HWMON_F_INPUT | HWMON_F_LABEL, + HWMON_F_INPUT | HWMON_F_LABEL, HWMON_F_INPUT | HWMON_F_LABEL, + HWMON_F_INPUT | HWMON_F_LABEL, HWMON_F_INPUT | HWMON_F_LABEL), + NULL +}; + +static const struct hwmon_ops cgbc_hwmon_ops = { + .is_visible = cgbc_hwmon_is_visible, + .read = cgbc_hwmon_read, + .read_string = cgbc_hwmon_read_string, +}; + +static const struct hwmon_chip_info cgbc_chip_info = { + .ops = &cgbc_hwmon_ops, + .info = cgbc_hwmon_info, +}; + +static int cgbc_hwmon_probe(struct platform_device *pdev) +{ + struct cgbc_device_data *cgbc = dev_get_drvdata(pdev->dev.parent); + struct device *dev = &pdev->dev; + struct cgbc_hwmon_data *data; + struct device *hwmon_dev; + int ret; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->cgbc = cgbc; + + ret = cgbc_hwmon_probe_sensors(dev, data); + if (ret) + return dev_err_probe(dev, ret, "Failed to probe sensors"); + + hwmon_dev = devm_hwmon_device_register_with_info(dev, "cgbc_hwmon", data, &cgbc_chip_info, + NULL); + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static struct platform_driver cgbc_hwmon_driver = { + .driver = { + .name = "cgbc-hwmon", + }, + .probe = cgbc_hwmon_probe, +}; + +module_platform_driver(cgbc_hwmon_driver); + +MODULE_AUTHOR("Thomas Richard <thomas.richard@bootlin.com>"); +MODULE_DESCRIPTION("Congatec Board Controller Hardware Monitoring Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/chipcap2.c b/drivers/hwmon/chipcap2.c index edf454474f11..9d071f7ca9d2 100644 --- a/drivers/hwmon/chipcap2.c +++ b/drivers/hwmon/chipcap2.c @@ -13,6 +13,7 @@ #include <linux/bitfield.h> #include <linux/bits.h> +#include <linux/cleanup.h> #include <linux/completion.h> #include <linux/delay.h> #include <linux/hwmon.h> @@ -556,55 +557,40 @@ static int cc2_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *val) { struct cc2_data *data = dev_get_drvdata(dev); - int ret = 0; - mutex_lock(&data->dev_access_lock); + guard(mutex)(&data->dev_access_lock); switch (type) { case hwmon_temp: - ret = cc2_measurement(data, type, val); - break; + return cc2_measurement(data, type, val); case hwmon_humidity: switch (attr) { case hwmon_humidity_input: - ret = cc2_measurement(data, type, val); - break; + return cc2_measurement(data, type, val); case hwmon_humidity_min: - ret = cc2_get_reg_val(data, CC2_R_ALARM_L_ON, val); - break; + return cc2_get_reg_val(data, CC2_R_ALARM_L_ON, val); case hwmon_humidity_min_hyst: - ret = cc2_get_reg_val(data, CC2_R_ALARM_L_OFF, val); - break; + return cc2_get_reg_val(data, CC2_R_ALARM_L_OFF, val); case hwmon_humidity_max: - ret = cc2_get_reg_val(data, CC2_R_ALARM_H_ON, val); - break; + return cc2_get_reg_val(data, CC2_R_ALARM_H_ON, val); case hwmon_humidity_max_hyst: - ret = cc2_get_reg_val(data, CC2_R_ALARM_H_OFF, val); - break; + return cc2_get_reg_val(data, CC2_R_ALARM_H_OFF, val); case hwmon_humidity_min_alarm: - ret = cc2_humidity_min_alarm_status(data, val); - break; + return cc2_humidity_min_alarm_status(data, val); case hwmon_humidity_max_alarm: - ret = cc2_humidity_max_alarm_status(data, val); - break; + return cc2_humidity_max_alarm_status(data, val); default: - ret = -EOPNOTSUPP; + return -EOPNOTSUPP; } - break; default: - ret = -EOPNOTSUPP; + return -EOPNOTSUPP; } - - mutex_unlock(&data->dev_access_lock); - - return ret; } static int cc2_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long val) { struct cc2_data *data = dev_get_drvdata(dev); - int ret; u16 arg; u8 cmd; @@ -614,41 +600,28 @@ static int cc2_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, if (val < 0 || val > CC2_RH_MAX) return -EINVAL; - mutex_lock(&data->dev_access_lock); + guard(mutex)(&data->dev_access_lock); switch (attr) { case hwmon_humidity_min: cmd = CC2_W_ALARM_L_ON; arg = cc2_rh_to_reg(val); - ret = cc2_write_reg(data, cmd, arg); - break; - + return cc2_write_reg(data, cmd, arg); case hwmon_humidity_min_hyst: cmd = CC2_W_ALARM_L_OFF; arg = cc2_rh_to_reg(val); - ret = cc2_write_reg(data, cmd, arg); - break; - + return cc2_write_reg(data, cmd, arg); case hwmon_humidity_max: cmd = CC2_W_ALARM_H_ON; arg = cc2_rh_to_reg(val); - ret = cc2_write_reg(data, cmd, arg); - break; - + return cc2_write_reg(data, cmd, arg); case hwmon_humidity_max_hyst: cmd = CC2_W_ALARM_H_OFF; arg = cc2_rh_to_reg(val); - ret = cc2_write_reg(data, cmd, arg); - break; - + return cc2_write_reg(data, cmd, arg); default: - ret = -EOPNOTSUPP; - break; + return -EOPNOTSUPP; } - - mutex_unlock(&data->dev_access_lock); - - return ret; } static int cc2_request_ready_irq(struct cc2_data *data, struct device *dev) diff --git a/drivers/hwmon/corsair-cpro.c b/drivers/hwmon/corsair-cpro.c index e1a7f7aa7f80..b7b911f8359c 100644 --- a/drivers/hwmon/corsair-cpro.c +++ b/drivers/hwmon/corsair-cpro.c @@ -89,6 +89,7 @@ struct ccp_device { struct mutex mutex; /* whenever buffer is used, lock before send_usb_cmd */ u8 *cmd_buffer; u8 *buffer; + int buffer_recv_size; /* number of received bytes in buffer */ int target[6]; DECLARE_BITMAP(temp_cnct, NUM_TEMP_SENSORS); DECLARE_BITMAP(fan_cnct, NUM_FANS); @@ -146,6 +147,9 @@ static int send_usb_cmd(struct ccp_device *ccp, u8 command, u8 byte1, u8 byte2, if (!t) return -ETIMEDOUT; + if (ccp->buffer_recv_size != IN_BUFFER_SIZE) + return -EPROTO; + return ccp_get_errno(ccp); } @@ -157,6 +161,7 @@ static int ccp_raw_event(struct hid_device *hdev, struct hid_report *report, u8 spin_lock(&ccp->wait_input_report_lock); if (!completion_done(&ccp->wait_input_report)) { memcpy(ccp->buffer, data, min(IN_BUFFER_SIZE, size)); + ccp->buffer_recv_size = size; complete_all(&ccp->wait_input_report); } spin_unlock(&ccp->wait_input_report_lock); diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c index f5bdf842040e..1e2c8e284001 100644 --- a/drivers/hwmon/dell-smm-hwmon.c +++ b/drivers/hwmon/dell-smm-hwmon.c @@ -73,7 +73,7 @@ #define DELL_SMM_LEGACY_EXECUTE 0x1 #define DELL_SMM_NO_TEMP 10 -#define DELL_SMM_NO_FANS 3 +#define DELL_SMM_NO_FANS 4 struct smm_regs { unsigned int eax; @@ -1074,11 +1074,14 @@ static const struct hwmon_channel_info * const dell_smm_info[] = { HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MIN | HWMON_F_MAX | HWMON_F_TARGET, HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MIN | HWMON_F_MAX | + HWMON_F_TARGET, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MIN | HWMON_F_MAX | HWMON_F_TARGET ), HWMON_CHANNEL_INFO(pwm, HWMON_PWM_INPUT | HWMON_PWM_ENABLE, HWMON_PWM_INPUT, + HWMON_PWM_INPUT, HWMON_PWM_INPUT ), NULL @@ -1271,6 +1274,13 @@ static const struct dmi_system_id i8k_dmi_table[] __initconst = { }, }, { + .ident = "Dell OptiPlex 7050", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "OptiPlex 7050"), + }, + }, + { .ident = "Dell Precision", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), @@ -1545,6 +1555,14 @@ static const struct dmi_system_id i8k_whitelist_fan_control[] __initconst = { .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3], }, { + .ident = "Dell XPS 13 9370", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "XPS 13 9370"), + }, + .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_30A3_31A3], + }, + { .ident = "Dell Optiplex 7000", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), diff --git a/drivers/hwmon/emc2305.c b/drivers/hwmon/emc2305.c index 4d39fbd83769..1dbe3f26467d 100644 --- a/drivers/hwmon/emc2305.c +++ b/drivers/hwmon/emc2305.c @@ -112,8 +112,6 @@ static char *emc2305_fan_name[] = { "emc2305_fan5", }; -static void emc2305_unset_tz(struct device *dev); - static int emc2305_get_max_channel(const struct emc2305_data *data) { return data->pwm_num; @@ -293,13 +291,20 @@ static int emc2305_set_single_tz(struct device *dev, int idx) pwm = data->pwm_min[cdev_idx]; data->cdev_data[cdev_idx].cdev = - thermal_cooling_device_register(emc2305_fan_name[idx], data, - &emc2305_cooling_ops); + devm_thermal_of_cooling_device_register(dev, dev->of_node, + emc2305_fan_name[idx], data, + &emc2305_cooling_ops); if (IS_ERR(data->cdev_data[cdev_idx].cdev)) { dev_err(dev, "Failed to register cooling device %s\n", emc2305_fan_name[idx]); return PTR_ERR(data->cdev_data[cdev_idx].cdev); } + + if (data->cdev_data[cdev_idx].cur_state > 0) + /* Update pwm when temperature is above trips */ + pwm = EMC2305_PWM_STATE2DUTY(data->cdev_data[cdev_idx].cur_state, + data->max_state, EMC2305_FAN_MAX); + /* Set minimal PWM speed. */ if (data->pwm_separate) { ret = emc2305_set_pwm(dev, pwm, cdev_idx); @@ -313,10 +318,10 @@ static int emc2305_set_single_tz(struct device *dev, int idx) } } data->cdev_data[cdev_idx].cur_state = - EMC2305_PWM_DUTY2STATE(data->pwm_min[cdev_idx], data->max_state, + EMC2305_PWM_DUTY2STATE(pwm, data->max_state, EMC2305_FAN_MAX); data->cdev_data[cdev_idx].last_hwmon_state = - EMC2305_PWM_DUTY2STATE(data->pwm_min[cdev_idx], data->max_state, + EMC2305_PWM_DUTY2STATE(pwm, data->max_state, EMC2305_FAN_MAX); return 0; } @@ -332,24 +337,9 @@ static int emc2305_set_tz(struct device *dev) for (i = 0; i < data->pwm_num; i++) { ret = emc2305_set_single_tz(dev, i + 1); if (ret) - goto thermal_cooling_device_register_fail; + return ret; } return 0; - -thermal_cooling_device_register_fail: - emc2305_unset_tz(dev); - return ret; -} - -static void emc2305_unset_tz(struct device *dev) -{ - struct emc2305_data *data = dev_get_drvdata(dev); - int i; - - /* Unregister cooling device. */ - for (i = 0; i < EMC2305_PWM_MAX; i++) - if (data->cdev_data[i].cdev) - thermal_cooling_device_unregister(data->cdev_data[i].cdev); } static umode_t @@ -599,20 +589,18 @@ static int emc2305_probe(struct i2c_client *client) return 0; } -static void emc2305_remove(struct i2c_client *client) -{ - struct device *dev = &client->dev; - - if (IS_REACHABLE(CONFIG_THERMAL)) - emc2305_unset_tz(dev); -} +static const struct of_device_id of_emc2305_match_table[] = { + { .compatible = "microchip,emc2305", }, + {}, +}; +MODULE_DEVICE_TABLE(of, of_emc2305_match_table); static struct i2c_driver emc2305_driver = { .driver = { .name = "emc2305", + .of_match_table = of_emc2305_match_table, }, .probe = emc2305_probe, - .remove = emc2305_remove, .id_table = emc2305_ids, }; diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index 9ed2c4b6734e..8ecebea53651 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -143,8 +143,8 @@ static void do_read_registers_on_cu(void *_data) */ cu = topology_core_id(smp_processor_id()); - rdmsrl_safe(MSR_F15H_CU_PWR_ACCUMULATOR, &data->cu_acc_power[cu]); - rdmsrl_safe(MSR_F15H_PTSC, &data->cpu_sw_pwr_ptsc[cu]); + rdmsrq_safe(MSR_F15H_CU_PWR_ACCUMULATOR, &data->cu_acc_power[cu]); + rdmsrq_safe(MSR_F15H_PTSC, &data->cpu_sw_pwr_ptsc[cu]); data->cu_on[cu] = 1; } @@ -424,7 +424,7 @@ static int fam15h_power_init_data(struct pci_dev *f4, */ data->cpu_pwr_sample_ratio = cpuid_ecx(0x80000007); - if (rdmsrl_safe(MSR_F15H_CU_MAX_PWR_ACCUMULATOR, &tmp)) { + if (rdmsrq_safe(MSR_F15H_CU_MAX_PWR_ACCUMULATOR, &tmp)) { pr_err("Failed to read max compute unit power accumulator MSR\n"); return -ENODEV; } diff --git a/drivers/hwmon/ftsteutates.c b/drivers/hwmon/ftsteutates.c index a3a07662e491..8aeec16a7a90 100644 --- a/drivers/hwmon/ftsteutates.c +++ b/drivers/hwmon/ftsteutates.c @@ -423,13 +423,16 @@ static int fts_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, break; case hwmon_pwm: switch (attr) { - case hwmon_pwm_auto_channels_temp: - if (data->fan_source[channel] == FTS_FAN_SOURCE_INVALID) + case hwmon_pwm_auto_channels_temp: { + u8 fan_source = data->fan_source[channel]; + + if (fan_source == FTS_FAN_SOURCE_INVALID || fan_source >= BITS_PER_LONG) *val = 0; else - *val = BIT(data->fan_source[channel]); + *val = BIT(fan_source); return 0; + } default: break; } diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c index d92c536be9af..516c34bb61c9 100644 --- a/drivers/hwmon/gpio-fan.c +++ b/drivers/hwmon/gpio-fan.c @@ -20,6 +20,9 @@ #include <linux/gpio/consumer.h> #include <linux/of.h> #include <linux/of_platform.h> +#include <linux/pm.h> +#include <linux/pm_runtime.h> +#include <linux/regulator/consumer.h> #include <linux/thermal.h> struct gpio_fan_speed { @@ -42,6 +45,7 @@ struct gpio_fan_data { bool pwm_enable; struct gpio_desc *alarm_gpio; struct work_struct alarm_work; + struct regulator *supply; }; /* @@ -125,13 +129,32 @@ static int __get_fan_ctrl(struct gpio_fan_data *fan_data) } /* Must be called with fan_data->lock held, except during initialization. */ -static void set_fan_speed(struct gpio_fan_data *fan_data, int speed_index) +static int set_fan_speed(struct gpio_fan_data *fan_data, int speed_index) { if (fan_data->speed_index == speed_index) - return; + return 0; + + if (fan_data->speed_index == 0 && speed_index > 0) { + int ret; + + ret = pm_runtime_resume_and_get(fan_data->dev); + if (ret < 0) + return ret; + } __set_fan_ctrl(fan_data, fan_data->speed[speed_index].ctrl_val); + + if (fan_data->speed_index > 0 && speed_index == 0) { + int ret; + + ret = pm_runtime_put_sync(fan_data->dev); + if (ret < 0) + return ret; + } + fan_data->speed_index = speed_index; + + return 0; } static int get_fan_speed_index(struct gpio_fan_data *fan_data) @@ -176,7 +199,7 @@ static ssize_t pwm1_store(struct device *dev, struct device_attribute *attr, struct gpio_fan_data *fan_data = dev_get_drvdata(dev); unsigned long pwm; int speed_index; - int ret = count; + int ret; if (kstrtoul(buf, 10, &pwm) || pwm > 255) return -EINVAL; @@ -189,12 +212,12 @@ static ssize_t pwm1_store(struct device *dev, struct device_attribute *attr, } speed_index = DIV_ROUND_UP(pwm * (fan_data->num_speed - 1), 255); - set_fan_speed(fan_data, speed_index); + ret = set_fan_speed(fan_data, speed_index); exit_unlock: mutex_unlock(&fan_data->lock); - return ret; + return ret ? ret : count; } static ssize_t pwm1_enable_show(struct device *dev, @@ -211,6 +234,7 @@ static ssize_t pwm1_enable_store(struct device *dev, { struct gpio_fan_data *fan_data = dev_get_drvdata(dev); unsigned long val; + int ret = 0; if (kstrtoul(buf, 10, &val) || val > 1) return -EINVAL; @@ -224,11 +248,11 @@ static ssize_t pwm1_enable_store(struct device *dev, /* Disable manual control mode: set fan at full speed. */ if (val == 0) - set_fan_speed(fan_data, fan_data->num_speed - 1); + ret = set_fan_speed(fan_data, fan_data->num_speed - 1); mutex_unlock(&fan_data->lock); - return count; + return ret ? ret : count; } static ssize_t pwm1_mode_show(struct device *dev, @@ -279,7 +303,7 @@ static ssize_t set_rpm(struct device *dev, struct device_attribute *attr, goto exit_unlock; } - set_fan_speed(fan_data, rpm_to_speed_index(fan_data, rpm)); + ret = set_fan_speed(fan_data, rpm_to_speed_index(fan_data, rpm)); exit_unlock: mutex_unlock(&fan_data->lock); @@ -386,6 +410,7 @@ static int gpio_fan_set_cur_state(struct thermal_cooling_device *cdev, unsigned long state) { struct gpio_fan_data *fan_data = cdev->devdata; + int ret; if (!fan_data) return -EINVAL; @@ -393,8 +418,13 @@ static int gpio_fan_set_cur_state(struct thermal_cooling_device *cdev, if (state >= fan_data->num_speed) return -EINVAL; - set_fan_speed(fan_data, state); - return 0; + mutex_lock(&fan_data->lock); + + ret = set_fan_speed(fan_data, state); + + mutex_unlock(&fan_data->lock); + + return ret; } static const struct thermal_cooling_device_ops gpio_fan_cool_ops = { @@ -489,7 +519,13 @@ MODULE_DEVICE_TABLE(of, of_gpio_fan_match); static void gpio_fan_stop(void *data) { + struct gpio_fan_data *fan_data = data; + + mutex_lock(&fan_data->lock); set_fan_speed(data, 0); + mutex_unlock(&fan_data->lock); + + pm_runtime_disable(fan_data->dev); } static int gpio_fan_probe(struct platform_device *pdev) @@ -512,6 +548,11 @@ static int gpio_fan_probe(struct platform_device *pdev) platform_set_drvdata(pdev, fan_data); mutex_init(&fan_data->lock); + fan_data->supply = devm_regulator_get(dev, "fan"); + if (IS_ERR(fan_data->supply)) + return dev_err_probe(dev, PTR_ERR(fan_data->supply), + "Failed to get fan-supply"); + /* Configure control GPIOs if available. */ if (fan_data->gpios && fan_data->num_gpios > 0) { if (!fan_data->speed || fan_data->num_speed <= 1) @@ -539,6 +580,17 @@ static int gpio_fan_probe(struct platform_device *pdev) return err; } + pm_runtime_set_suspended(&pdev->dev); + pm_runtime_enable(&pdev->dev); + /* If current GPIO state is active, mark RPM as active as well */ + if (fan_data->speed_index > 0) { + int ret; + + ret = pm_runtime_resume_and_get(&pdev->dev); + if (ret) + return ret; + } + /* Optional cooling device register for Device tree platforms */ fan_data->cdev = devm_thermal_of_cooling_device_register(dev, np, "gpio-fan", fan_data, &gpio_fan_cool_ops); @@ -556,36 +608,69 @@ static void gpio_fan_shutdown(struct platform_device *pdev) set_fan_speed(fan_data, 0); } +static int gpio_fan_runtime_suspend(struct device *dev) +{ + struct gpio_fan_data *fan_data = dev_get_drvdata(dev); + int ret = 0; + + if (fan_data->supply) + ret = regulator_disable(fan_data->supply); + + return ret; +} + +static int gpio_fan_runtime_resume(struct device *dev) +{ + struct gpio_fan_data *fan_data = dev_get_drvdata(dev); + int ret = 0; + + if (fan_data->supply) + ret = regulator_enable(fan_data->supply); + + return ret; +} + static int gpio_fan_suspend(struct device *dev) { struct gpio_fan_data *fan_data = dev_get_drvdata(dev); + int ret = 0; if (fan_data->gpios) { fan_data->resume_speed = fan_data->speed_index; - set_fan_speed(fan_data, 0); + mutex_lock(&fan_data->lock); + ret = set_fan_speed(fan_data, 0); + mutex_unlock(&fan_data->lock); } - return 0; + return ret; } static int gpio_fan_resume(struct device *dev) { struct gpio_fan_data *fan_data = dev_get_drvdata(dev); + int ret = 0; - if (fan_data->gpios) - set_fan_speed(fan_data, fan_data->resume_speed); + if (fan_data->gpios) { + mutex_lock(&fan_data->lock); + ret = set_fan_speed(fan_data, fan_data->resume_speed); + mutex_unlock(&fan_data->lock); + } - return 0; + return ret; } -static DEFINE_SIMPLE_DEV_PM_OPS(gpio_fan_pm, gpio_fan_suspend, gpio_fan_resume); +static const struct dev_pm_ops gpio_fan_pm = { + RUNTIME_PM_OPS(gpio_fan_runtime_suspend, + gpio_fan_runtime_resume, NULL) + SYSTEM_SLEEP_PM_OPS(gpio_fan_suspend, gpio_fan_resume) +}; static struct platform_driver gpio_fan_driver = { .probe = gpio_fan_probe, .shutdown = gpio_fan_shutdown, .driver = { .name = "gpio-fan", - .pm = pm_sleep_ptr(&gpio_fan_pm), + .pm = pm_ptr(&gpio_fan_pm), .of_match_table = of_gpio_fan_match, }, }; diff --git a/drivers/hwmon/gsc-hwmon.c b/drivers/hwmon/gsc-hwmon.c index 14a6385cd7cc..0f9af82cebec 100644 --- a/drivers/hwmon/gsc-hwmon.c +++ b/drivers/hwmon/gsc-hwmon.c @@ -47,7 +47,6 @@ static const struct regmap_bus gsc_hwmon_regmap_bus = { static const struct regmap_config gsc_hwmon_regmap_config = { .reg_bits = 8, .val_bits = 8, - .cache_type = REGCACHE_NONE, }; static ssize_t pwm_auto_point_temp_show(struct device *dev, diff --git a/drivers/hwmon/hp-wmi-sensors.c b/drivers/hwmon/hp-wmi-sensors.c index d6bdad26feb1..03c684ba83bd 100644 --- a/drivers/hwmon/hp-wmi-sensors.c +++ b/drivers/hwmon/hp-wmi-sensors.c @@ -1197,7 +1197,7 @@ static int hp_wmi_update_info(struct hp_wmi_sensors *state, if (time_after(jiffies, info->last_updated + HZ)) { mutex_lock(&state->lock); - wobj = hp_wmi_get_wobj(HP_WMI_NUMERIC_SENSOR_GUID, instance); + wobj = wmidev_block_query(state->wdev, instance); if (!wobj) { ret = -EIO; goto out_unlock; @@ -1745,7 +1745,7 @@ static int init_numeric_sensors(struct hp_wmi_sensors *state, return -ENOMEM; for (i = 0, info = info_arr; i < icount; i++, info++) { - wobj = hp_wmi_get_wobj(HP_WMI_NUMERIC_SENSOR_GUID, i); + wobj = wmidev_block_query(state->wdev, i); if (!wobj) return -EIO; diff --git a/drivers/hwmon/htu31.c b/drivers/hwmon/htu31.c new file mode 100644 index 000000000000..7521a371aa6c --- /dev/null +++ b/drivers/hwmon/htu31.c @@ -0,0 +1,350 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * The driver for Measurement Specialties HTU31 Temperature and Humidity sensor. + * + * Copyright (C) 2025 + * Author: Andrei Lalaev <andrey.lalaev@gmail.com> + */ + +#include <linux/array_size.h> +#include <linux/cleanup.h> +#include <linux/crc8.h> +#include <linux/debugfs.h> +#include <linux/delay.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/module.h> + +#define HTU31_READ_TEMP_HUM_CMD 0x00 +#define HTU31_READ_SERIAL_CMD 0x0a +#define HTU31_CONVERSION_CMD 0x5e +#define HTU31_HEATER_OFF_CMD 0x02 +#define HTU31_HEATER_ON_CMD 0x04 + +#define HTU31_TEMP_HUM_LEN 6 + +/* Conversion time for the highest resolution */ +#define HTU31_HUMIDITY_CONV_TIME 10000 /* us */ +#define HTU31_TEMPERATURE_CONV_TIME 15000 /* us */ + +#define HTU31_SERIAL_NUMBER_LEN 3 +#define HTU31_SERIAL_NUMBER_CRC_LEN 1 +#define HTU31_SERIAL_NUMBER_CRC_OFFSET 3 + +#define HTU31_CRC8_INIT_VAL 0 +#define HTU31_CRC8_POLYNOMIAL 0x31 +DECLARE_CRC8_TABLE(htu31_crc8_table); + +/** + * struct htu31_data - all the data required to operate a HTU31 chip + * @client: the i2c client associated with the HTU31 + * @lock: a mutex to prevent parallel access to the data + * @wait_time: the time needed by sensor to convert values + * @temperature: the latest temperature value in millidegrees + * @humidity: the latest relative humidity value in millipercent + * @serial_number: the serial number of the sensor + * @heater_enable: the internal state of the heater + */ +struct htu31_data { + struct i2c_client *client; + struct mutex lock; /* Used to protect against parallel data updates */ + long wait_time; + long temperature; + long humidity; + u8 serial_number[HTU31_SERIAL_NUMBER_LEN]; + bool heater_enable; +}; + +static long htu31_temp_to_millicelsius(u16 val) +{ + return -40000 + DIV_ROUND_CLOSEST_ULL(165000ULL * val, 65535); +} + +static long htu31_relative_humidity(u16 val) +{ + return DIV_ROUND_CLOSEST_ULL(100000ULL * val, 65535); +} + +static int htu31_data_fetch_command(struct htu31_data *data) +{ + struct i2c_client *client = data->client; + u8 conversion_on = HTU31_CONVERSION_CMD; + u8 read_data_cmd = HTU31_READ_TEMP_HUM_CMD; + u8 t_h_buf[HTU31_TEMP_HUM_LEN] = {}; + struct i2c_msg msgs[] = { + { + .addr = client->addr, + .flags = 0, + .len = 1, + .buf = &read_data_cmd, + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = sizeof(t_h_buf), + .buf = t_h_buf, + }, + }; + int ret; + u8 crc; + + guard(mutex)(&data->lock); + + ret = i2c_master_send(client, &conversion_on, 1); + if (ret != 1) { + ret = ret < 0 ? ret : -EIO; + dev_err(&client->dev, + "Conversion command is failed. Error code: %d\n", ret); + return ret; + } + + fsleep(data->wait_time); + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret != ARRAY_SIZE(msgs)) { + ret = ret < 0 ? ret : -EIO; + dev_err(&client->dev, + "T&H command is failed. Error code: %d\n", ret); + return ret; + } + + crc = crc8(htu31_crc8_table, &t_h_buf[0], 2, HTU31_CRC8_INIT_VAL); + if (crc != t_h_buf[2]) { + dev_err(&client->dev, "Temperature CRC mismatch\n"); + return -EIO; + } + + crc = crc8(htu31_crc8_table, &t_h_buf[3], 2, HTU31_CRC8_INIT_VAL); + if (crc != t_h_buf[5]) { + dev_err(&client->dev, "Humidity CRC mismatch\n"); + return -EIO; + } + + data->temperature = htu31_temp_to_millicelsius(be16_to_cpup((__be16 *)&t_h_buf[0])); + data->humidity = htu31_relative_humidity(be16_to_cpup((__be16 *)&t_h_buf[3])); + + return 0; +} + +static umode_t htu31_is_visible(const void *data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_temp: + case hwmon_humidity: + return 0444; + default: + return 0; + } +} + +static int htu31_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct htu31_data *data = dev_get_drvdata(dev); + int ret; + + ret = htu31_data_fetch_command(data); + if (ret < 0) + return ret; + + switch (type) { + case hwmon_temp: + if (attr != hwmon_temp_input) + return -EINVAL; + + *val = data->temperature; + break; + case hwmon_humidity: + if (attr != hwmon_humidity_input) + return -EINVAL; + + *val = data->humidity; + break; + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static int htu31_read_serial_number(struct htu31_data *data) +{ + struct i2c_client *client = data->client; + u8 read_sn_cmd = HTU31_READ_SERIAL_CMD; + u8 sn_buf[HTU31_SERIAL_NUMBER_LEN + HTU31_SERIAL_NUMBER_CRC_LEN]; + struct i2c_msg msgs[] = { + { + .addr = client->addr, + .flags = 0, + .len = 1, + .buf = &read_sn_cmd, + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = sizeof(sn_buf), + .buf = sn_buf, + }, + }; + int ret; + u8 crc; + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret < 0) + return ret; + + crc = crc8(htu31_crc8_table, sn_buf, HTU31_SERIAL_NUMBER_LEN, HTU31_CRC8_INIT_VAL); + if (crc != sn_buf[HTU31_SERIAL_NUMBER_CRC_OFFSET]) { + dev_err(&client->dev, "Serial number CRC mismatch\n"); + return -EIO; + } + + memcpy(data->serial_number, sn_buf, HTU31_SERIAL_NUMBER_LEN); + + return 0; +} + +static ssize_t heater_enable_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct htu31_data *data = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%d\n", data->heater_enable); +} + +static ssize_t heater_enable_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct htu31_data *data = dev_get_drvdata(dev); + u8 heater_cmd; + bool status; + int ret; + + ret = kstrtobool(buf, &status); + if (ret) + return ret; + + heater_cmd = status ? HTU31_HEATER_ON_CMD : HTU31_HEATER_OFF_CMD; + + guard(mutex)(&data->lock); + + ret = i2c_master_send(data->client, &heater_cmd, 1); + if (ret < 0) + return ret; + + data->heater_enable = status; + + return count; +} + +static DEVICE_ATTR_RW(heater_enable); + +static int serial_number_show(struct seq_file *seq_file, + void *unused) +{ + struct htu31_data *data = seq_file->private; + + seq_printf(seq_file, "%X%X%X\n", data->serial_number[0], + data->serial_number[1], data->serial_number[2]); + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(serial_number); + +static struct attribute *htu31_attrs[] = { + &dev_attr_heater_enable.attr, + NULL +}; + +ATTRIBUTE_GROUPS(htu31); + +static const struct hwmon_channel_info * const htu31_info[] = { + HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT), + HWMON_CHANNEL_INFO(humidity, HWMON_H_INPUT), + NULL +}; + +static const struct hwmon_ops htu31_hwmon_ops = { + .is_visible = htu31_is_visible, + .read = htu31_read, +}; + +static const struct hwmon_chip_info htu31_chip_info = { + .info = htu31_info, + .ops = &htu31_hwmon_ops, +}; + +static int htu31_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct device *hwmon_dev; + struct htu31_data *data; + int ret; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->client = client; + data->wait_time = HTU31_TEMPERATURE_CONV_TIME + HTU31_HUMIDITY_CONV_TIME; + + ret = devm_mutex_init(dev, &data->lock); + if (ret) + return ret; + + crc8_populate_msb(htu31_crc8_table, HTU31_CRC8_POLYNOMIAL); + + ret = htu31_read_serial_number(data); + if (ret) { + dev_err(dev, "Failed to read serial number\n"); + return ret; + } + + debugfs_create_file("serial_number", + 0444, + client->debugfs, + data, + &serial_number_fops); + + hwmon_dev = devm_hwmon_device_register_with_info(dev, + client->name, + data, + &htu31_chip_info, + htu31_groups); + + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static const struct i2c_device_id htu31_id[] = { + { "htu31" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, htu31_id); + +#if IS_ENABLED(CONFIG_OF) +static const struct of_device_id htu31_of_match[] = { + { .compatible = "meas,htu31" }, + { } +}; +MODULE_DEVICE_TABLE(of, htu31_of_match); +#endif + +static struct i2c_driver htu31_driver = { + .driver = { + .name = "htu31", + .of_match_table = of_match_ptr(htu31_of_match), + }, + .probe = htu31_probe, + .id_table = htu31_id, +}; +module_i2c_driver(htu31_driver); + +MODULE_AUTHOR("Andrei Lalaev <andrey.lalaev@gmail.com>"); +MODULE_DESCRIPTION("HTU31 Temperature and Humidity sensor driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/hwmon-vid.c b/drivers/hwmon/hwmon-vid.c index 6d1175a51832..2df4956296ed 100644 --- a/drivers/hwmon/hwmon-vid.c +++ b/drivers/hwmon/hwmon-vid.c @@ -15,6 +15,10 @@ #include <linux/kernel.h> #include <linux/hwmon-vid.h> +#ifdef CONFIG_X86 +#include <asm/msr.h> +#endif + /* * Common code for decoding VID pins. * diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c index bbb9cc44e29f..1688c210888a 100644 --- a/drivers/hwmon/hwmon.c +++ b/drivers/hwmon/hwmon.c @@ -158,11 +158,6 @@ static umode_t hwmon_is_visible(const struct hwmon_ops *ops, /* Thermal zone handling */ -/* - * The complex conditional is necessary to avoid a cyclic dependency - * between hwmon and thermal_sys modules. - */ -#ifdef CONFIG_THERMAL_OF static int hwmon_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { struct hwmon_thermal_data *tdata = thermal_zone_device_priv(tz); @@ -268,6 +263,9 @@ static int hwmon_thermal_register_sensors(struct device *dev) void *drvdata = dev_get_drvdata(dev); int i; + if (!IS_ENABLED(CONFIG_THERMAL_OF)) + return 0; + for (i = 1; info[i]; i++) { int j; @@ -296,6 +294,9 @@ static void hwmon_thermal_notify(struct device *dev, int index) struct hwmon_device *hwdev = to_hwmon_device(dev); struct hwmon_thermal_data *tzdata; + if (!IS_ENABLED(CONFIG_THERMAL_OF)) + return; + list_for_each_entry(tzdata, &hwdev->tzdata, node) { if (tzdata->index == index) { thermal_zone_device_update(tzdata->tzd, @@ -304,16 +305,6 @@ static void hwmon_thermal_notify(struct device *dev, int index) } } -#else -static int hwmon_thermal_register_sensors(struct device *dev) -{ - return 0; -} - -static void hwmon_thermal_notify(struct device *dev, int index) { } - -#endif /* IS_REACHABLE(CONFIG_THERMAL) && ... */ - static int hwmon_attr_base(enum hwmon_sensor_types type) { if (type == hwmon_in || type == hwmon_intrusion) @@ -341,7 +332,7 @@ static int hwmon_attr_base(enum hwmon_sensor_types type) static DEFINE_MUTEX(hwmon_pec_mutex); -static int hwmon_match_device(struct device *dev, void *data) +static int hwmon_match_device(struct device *dev, const void *data) { return dev->class == &hwmon_class; } @@ -655,8 +646,8 @@ static const char * const hwmon_power_attr_templates[] = { [hwmon_power_enable] = "power%d_enable", [hwmon_power_average] = "power%d_average", [hwmon_power_average_interval] = "power%d_average_interval", - [hwmon_power_average_interval_max] = "power%d_interval_max", - [hwmon_power_average_interval_min] = "power%d_interval_min", + [hwmon_power_average_interval_max] = "power%d_average_interval_max", + [hwmon_power_average_interval_min] = "power%d_average_interval_min", [hwmon_power_average_highest] = "power%d_average_highest", [hwmon_power_average_lowest] = "power%d_average_lowest", [hwmon_power_average_max] = "power%d_average_max", @@ -1179,6 +1170,12 @@ devm_hwmon_device_register_with_info(struct device *dev, const char *name, if (!dev) return ERR_PTR(-EINVAL); + if (!name) { + name = devm_hwmon_sanitize_name(dev, dev_name(dev)); + if (IS_ERR(name)) + return ERR_CAST(name); + } + ptr = devres_alloc(devm_hwmon_release, sizeof(*ptr), GFP_KERNEL); if (!ptr) return ERR_PTR(-ENOMEM); diff --git a/drivers/hwmon/ina238.c b/drivers/hwmon/ina238.c index 2d9f12f68d50..9a5fd16a4ec2 100644 --- a/drivers/hwmon/ina238.c +++ b/drivers/hwmon/ina238.c @@ -21,11 +21,14 @@ #define INA238_CONFIG 0x0 #define INA238_ADC_CONFIG 0x1 #define INA238_SHUNT_CALIBRATION 0x2 +#define SQ52206_SHUNT_TEMPCO 0x3 #define INA238_SHUNT_VOLTAGE 0x4 #define INA238_BUS_VOLTAGE 0x5 #define INA238_DIE_TEMP 0x6 #define INA238_CURRENT 0x7 #define INA238_POWER 0x8 +#define SQ52206_ENERGY 0x9 +#define SQ52206_CHARGE 0xa #define INA238_DIAG_ALERT 0xb #define INA238_SHUNT_OVER_VOLTAGE 0xc #define INA238_SHUNT_UNDER_VOLTAGE 0xd @@ -33,9 +36,12 @@ #define INA238_BUS_UNDER_VOLTAGE 0xf #define INA238_TEMP_LIMIT 0x10 #define INA238_POWER_LIMIT 0x11 +#define SQ52206_POWER_PEAK 0x20 #define INA238_DEVICE_ID 0x3f /* not available on INA237 */ #define INA238_CONFIG_ADCRANGE BIT(4) +#define SQ52206_CONFIG_ADCRANGE_HIGH BIT(4) +#define SQ52206_CONFIG_ADCRANGE_LOW BIT(3) #define INA238_DIAG_ALERT_TMPOL BIT(7) #define INA238_DIAG_ALERT_SHNTOL BIT(6) @@ -44,12 +50,13 @@ #define INA238_DIAG_ALERT_BUSUL BIT(3) #define INA238_DIAG_ALERT_POL BIT(2) -#define INA238_REGISTERS 0x11 +#define INA238_REGISTERS 0x20 #define INA238_RSHUNT_DEFAULT 10000 /* uOhm */ /* Default configuration of device on reset. */ #define INA238_CONFIG_DEFAULT 0 +#define SQ52206_CONFIG_DEFAULT 0x0005 /* 16 sample averaging, 1052us conversion time, continuous mode */ #define INA238_ADC_CONFIG_DEFAULT 0xfb6a /* Configure alerts to be based on averaged value (SLOWALERT) */ @@ -87,14 +94,19 @@ * shunt = 0x4000 / (819.2 * 10^6) / 0.001 = 20000 uOhms (with 1mA/lsb) * * Current (mA) = register value * 20000 / rshunt / 4 * gain - * Power (W) = 0.2 * register value * 20000 / rshunt / 4 * gain + * Power (mW) = 0.2 * register value * 20000 / rshunt / 4 * gain + * (Specific for SQ52206) + * Power (mW) = 0.24 * register value * 20000 / rshunt / 4 * gain + * Energy (uJ) = 16 * 0.24 * register value * 20000 / rshunt / 4 * gain * 1000 */ #define INA238_CALIBRATION_VALUE 16384 #define INA238_FIXED_SHUNT 20000 #define INA238_SHUNT_VOLTAGE_LSB 5 /* 5 uV/lsb */ #define INA238_BUS_VOLTAGE_LSB 3125 /* 3.125 mV/lsb */ -#define INA238_DIE_TEMP_LSB 125 /* 125 mC/lsb */ +#define INA238_DIE_TEMP_LSB 1250000 /* 125.0000 mC/lsb */ +#define SQ52206_BUS_VOLTAGE_LSB 3750 /* 3.75 mV/lsb */ +#define SQ52206_DIE_TEMP_LSB 78125 /* 7.8125 mC/lsb */ static const struct regmap_config ina238_regmap_config = { .max_register = INA238_REGISTERS, @@ -102,7 +114,20 @@ static const struct regmap_config ina238_regmap_config = { .val_bits = 16, }; +enum ina238_ids { ina238, ina237, sq52206 }; + +struct ina238_config { + bool has_power_highest; /* chip detection power peak */ + bool has_energy; /* chip detection energy */ + u8 temp_shift; /* fixed parameters for temp calculate */ + u32 power_calculate_factor; /* fixed parameters for power calculate */ + u16 config_default; /* Power-on default state */ + int bus_voltage_lsb; /* use for temperature calculate, uV/lsb */ + int temp_lsb; /* use for temperature calculate */ +}; + struct ina238_data { + const struct ina238_config *config; struct i2c_client *client; struct mutex config_lock; struct regmap *regmap; @@ -110,6 +135,36 @@ struct ina238_data { int gain; }; +static const struct ina238_config ina238_config[] = { + [ina238] = { + .has_energy = false, + .has_power_highest = false, + .temp_shift = 4, + .power_calculate_factor = 20, + .config_default = INA238_CONFIG_DEFAULT, + .bus_voltage_lsb = INA238_BUS_VOLTAGE_LSB, + .temp_lsb = INA238_DIE_TEMP_LSB, + }, + [ina237] = { + .has_energy = false, + .has_power_highest = false, + .temp_shift = 4, + .power_calculate_factor = 20, + .config_default = INA238_CONFIG_DEFAULT, + .bus_voltage_lsb = INA238_BUS_VOLTAGE_LSB, + .temp_lsb = INA238_DIE_TEMP_LSB, + }, + [sq52206] = { + .has_energy = true, + .has_power_highest = true, + .temp_shift = 0, + .power_calculate_factor = 24, + .config_default = SQ52206_CONFIG_DEFAULT, + .bus_voltage_lsb = SQ52206_BUS_VOLTAGE_LSB, + .temp_lsb = SQ52206_DIE_TEMP_LSB, + }, +}; + static int ina238_read_reg24(const struct i2c_client *client, u8 reg, u32 *val) { u8 data[3]; @@ -126,6 +181,24 @@ static int ina238_read_reg24(const struct i2c_client *client, u8 reg, u32 *val) return 0; } +static int ina238_read_reg40(const struct i2c_client *client, u8 reg, u64 *val) +{ + u8 data[5]; + u32 low; + int err; + + /* 40-bit register read */ + err = i2c_smbus_read_i2c_block_data(client, reg, 5, data); + if (err < 0) + return err; + if (err != 5) + return -EIO; + low = (data[1] << 24) | (data[2] << 16) | (data[3] << 8) | data[4]; + *val = ((long long)data[0] << 32) | low; + + return 0; +} + static int ina238_read_in(struct device *dev, u32 attr, int channel, long *val) { @@ -197,10 +270,10 @@ static int ina238_read_in(struct device *dev, u32 attr, int channel, regval = (s16)regval; if (channel == 0) /* gain of 1 -> LSB / 4 */ - *val = (regval * INA238_SHUNT_VOLTAGE_LSB) / - (1000 * (4 - data->gain + 1)); + *val = (regval * INA238_SHUNT_VOLTAGE_LSB) * + data->gain / (1000 * 4); else - *val = (regval * INA238_BUS_VOLTAGE_LSB) / 1000; + *val = (regval * data->config->bus_voltage_lsb) / 1000; break; case hwmon_in_max_alarm: case hwmon_in_min_alarm: @@ -225,8 +298,8 @@ static int ina238_write_in(struct device *dev, u32 attr, int channel, case 0: /* signed value, clamp to max range +/-163 mV */ regval = clamp_val(val, -163, 163); - regval = (regval * 1000 * (4 - data->gain + 1)) / - INA238_SHUNT_VOLTAGE_LSB; + regval = (regval * 1000 * 4) / + (INA238_SHUNT_VOLTAGE_LSB * data->gain); regval = clamp_val(regval, S16_MIN, S16_MAX); switch (attr) { @@ -242,7 +315,7 @@ static int ina238_write_in(struct device *dev, u32 attr, int channel, case 1: /* signed value, positive values only. Clamp to max 102.396 V */ regval = clamp_val(val, 0, 102396); - regval = (regval * 1000) / INA238_BUS_VOLTAGE_LSB; + regval = (regval * 1000) / data->config->bus_voltage_lsb; regval = clamp_val(regval, 0, S16_MAX); switch (attr) { @@ -297,8 +370,19 @@ static int ina238_read_power(struct device *dev, u32 attr, long *val) return err; /* Fixed 1mA lsb, scaled by 1000000 to have result in uW */ - power = div_u64(regval * 1000ULL * INA238_FIXED_SHUNT * - data->gain, 20 * data->rshunt); + power = div_u64(regval * 1000ULL * INA238_FIXED_SHUNT * data->gain * + data->config->power_calculate_factor, 4 * 100 * data->rshunt); + /* Clamp value to maximum value of long */ + *val = clamp_val(power, 0, LONG_MAX); + break; + case hwmon_power_input_highest: + err = ina238_read_reg24(data->client, SQ52206_POWER_PEAK, ®val); + if (err) + return err; + + /* Fixed 1mA lsb, scaled by 1000000 to have result in uW */ + power = div_u64(regval * 1000ULL * INA238_FIXED_SHUNT * data->gain * + data->config->power_calculate_factor, 4 * 100 * data->rshunt); /* Clamp value to maximum value of long */ *val = clamp_val(power, 0, LONG_MAX); break; @@ -311,8 +395,8 @@ static int ina238_read_power(struct device *dev, u32 attr, long *val) * Truncated 24-bit compare register, lower 8-bits are * truncated. Same conversion to/from uW as POWER register. */ - power = div_u64((regval << 8) * 1000ULL * INA238_FIXED_SHUNT * - data->gain, 20 * data->rshunt); + power = div_u64((regval << 8) * 1000ULL * INA238_FIXED_SHUNT * data->gain * + data->config->power_calculate_factor, 4 * 100 * data->rshunt); /* Clamp value to maximum value of long */ *val = clamp_val(power, 0, LONG_MAX); break; @@ -344,8 +428,8 @@ static int ina238_write_power(struct device *dev, u32 attr, long val) * register. */ regval = clamp_val(val, 0, LONG_MAX); - regval = div_u64(val * 20ULL * data->rshunt, - 1000ULL * INA238_FIXED_SHUNT * data->gain); + regval = div_u64(val * 4 * 100 * data->rshunt, data->config->power_calculate_factor * + 1000ULL * INA238_FIXED_SHUNT * data->gain); regval = clamp_val(regval >> 8, 0, U16_MAX); return regmap_write(data->regmap, INA238_POWER_LIMIT, regval); @@ -362,17 +446,17 @@ static int ina238_read_temp(struct device *dev, u32 attr, long *val) err = regmap_read(data->regmap, INA238_DIE_TEMP, ®val); if (err) return err; - - /* Signed, bits 15-4 of register, result in mC */ - *val = ((s16)regval >> 4) * INA238_DIE_TEMP_LSB; + /* Signed, result in mC */ + *val = div_s64(((s64)((s16)regval) >> data->config->temp_shift) * + (s64)data->config->temp_lsb, 10000); break; case hwmon_temp_max: err = regmap_read(data->regmap, INA238_TEMP_LIMIT, ®val); if (err) return err; - - /* Signed, bits 15-4 of register, result in mC */ - *val = ((s16)regval >> 4) * INA238_DIE_TEMP_LSB; + /* Signed, result in mC */ + *val = div_s64(((s64)((s16)regval) >> data->config->temp_shift) * + (s64)data->config->temp_lsb, 10000); break; case hwmon_temp_max_alarm: err = regmap_read(data->regmap, INA238_DIAG_ALERT, ®val); @@ -396,13 +480,33 @@ static int ina238_write_temp(struct device *dev, u32 attr, long val) if (attr != hwmon_temp_max) return -EOPNOTSUPP; - /* Signed, bits 15-4 of register */ - regval = (val / INA238_DIE_TEMP_LSB) << 4; - regval = clamp_val(regval, S16_MIN, S16_MAX) & 0xfff0; + /* Signed */ + regval = clamp_val(val, -40000, 125000); + regval = div_s64(val * 10000, data->config->temp_lsb) << data->config->temp_shift; + regval = clamp_val(regval, S16_MIN, S16_MAX) & (0xffff << data->config->temp_shift); return regmap_write(data->regmap, INA238_TEMP_LIMIT, regval); } +static ssize_t energy1_input_show(struct device *dev, + struct device_attribute *da, char *buf) +{ + struct ina238_data *data = dev_get_drvdata(dev); + int ret; + u64 regval; + u64 energy; + + ret = ina238_read_reg40(data->client, SQ52206_ENERGY, ®val); + if (ret) + return ret; + + /* result in uJ */ + energy = div_u64(regval * INA238_FIXED_SHUNT * data->gain * 16 * 10 * + data->config->power_calculate_factor, 4 * data->rshunt); + + return sysfs_emit(buf, "%llu\n", energy); +} + static int ina238_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *val) { @@ -422,7 +526,7 @@ static int ina238_read(struct device *dev, enum hwmon_sensor_types type, } static int ina238_write(struct device *dev, enum hwmon_sensor_types type, - u32 attr, int channel, long val) + u32 attr, int channel, long val) { struct ina238_data *data = dev_get_drvdata(dev); int err; @@ -452,6 +556,9 @@ static umode_t ina238_is_visible(const void *drvdata, enum hwmon_sensor_types type, u32 attr, int channel) { + const struct ina238_data *data = drvdata; + bool has_power_highest = data->config->has_power_highest; + switch (type) { case hwmon_in: switch (attr) { @@ -479,6 +586,10 @@ static umode_t ina238_is_visible(const void *drvdata, return 0444; case hwmon_power_max: return 0644; + case hwmon_power_input_highest: + if (has_power_highest) + return 0444; + return 0; default: return 0; } @@ -512,7 +623,8 @@ static const struct hwmon_channel_info * const ina238_info[] = { HWMON_C_INPUT), HWMON_CHANNEL_INFO(power, /* 0: power */ - HWMON_P_INPUT | HWMON_P_MAX | HWMON_P_MAX_ALARM), + HWMON_P_INPUT | HWMON_P_MAX | + HWMON_P_MAX_ALARM | HWMON_P_INPUT_HIGHEST), HWMON_CHANNEL_INFO(temp, /* 0: die temperature */ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_ALARM), @@ -530,20 +642,35 @@ static const struct hwmon_chip_info ina238_chip_info = { .info = ina238_info, }; +/* energy attributes are 5 bytes wide so we need u64 */ +static DEVICE_ATTR_RO(energy1_input); + +static struct attribute *ina238_attrs[] = { + &dev_attr_energy1_input.attr, + NULL, +}; +ATTRIBUTE_GROUPS(ina238); + static int ina238_probe(struct i2c_client *client) { struct ina2xx_platform_data *pdata = dev_get_platdata(&client->dev); struct device *dev = &client->dev; struct device *hwmon_dev; struct ina238_data *data; + enum ina238_ids chip; int config; int ret; + chip = (uintptr_t)i2c_get_match_data(client); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; data->client = client; + /* set the device type */ + data->config = &ina238_config[chip]; + mutex_init(&data->config_lock); data->regmap = devm_regmap_init_i2c(client, &ina238_regmap_config); @@ -564,15 +691,21 @@ static int ina238_probe(struct i2c_client *client) /* load shunt gain value */ if (device_property_read_u32(dev, "ti,shunt-gain", &data->gain) < 0) data->gain = 4; /* Default of ADCRANGE = 0 */ - if (data->gain != 1 && data->gain != 4) { + if (data->gain != 1 && data->gain != 2 && data->gain != 4) { dev_err(dev, "invalid shunt gain value %u\n", data->gain); return -EINVAL; } /* Setup CONFIG register */ - config = INA238_CONFIG_DEFAULT; - if (data->gain == 1) + config = data->config->config_default; + if (chip == sq52206) { + if (data->gain == 1) + config |= SQ52206_CONFIG_ADCRANGE_HIGH; /* ADCRANGE = 10/11 is /1 */ + else if (data->gain == 2) + config |= SQ52206_CONFIG_ADCRANGE_LOW; /* ADCRANGE = 01 is /2 */ + } else if (data->gain == 1) { config |= INA238_CONFIG_ADCRANGE; /* ADCRANGE = 1 is /1 */ + } ret = regmap_write(data->regmap, INA238_CONFIG, config); if (ret < 0) { dev_err(dev, "error configuring the device: %d\n", ret); @@ -605,7 +738,8 @@ static int ina238_probe(struct i2c_client *client) hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, &ina238_chip_info, - NULL); + data->config->has_energy ? + ina238_groups : NULL); if (IS_ERR(hwmon_dev)) return PTR_ERR(hwmon_dev); @@ -616,15 +750,27 @@ static int ina238_probe(struct i2c_client *client) } static const struct i2c_device_id ina238_id[] = { - { "ina238" }, + { "ina237", ina237 }, + { "ina238", ina238 }, + { "sq52206", sq52206 }, { } }; MODULE_DEVICE_TABLE(i2c, ina238_id); static const struct of_device_id __maybe_unused ina238_of_match[] = { - { .compatible = "ti,ina237" }, - { .compatible = "ti,ina238" }, - { }, + { + .compatible = "ti,ina237", + .data = (void *)ina237 + }, + { + .compatible = "ti,ina238", + .data = (void *)ina238 + }, + { + .compatible = "silergy,sq52206", + .data = (void *)sq52206 + }, + { } }; MODULE_DEVICE_TABLE(of, ina238_of_match); diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index 345fe7db9de9..bc3c1f7314b3 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -959,8 +959,12 @@ static int ina2xx_probe(struct i2c_client *client) return PTR_ERR(data->regmap); } - ret = devm_regulator_get_enable(dev, "vs"); - if (ret) + /* + * Regulator core returns -ENODEV if the 'vs' is not available. + * Hence the check for -ENODEV return code is necessary. + */ + ret = devm_regulator_get_enable_optional(dev, "vs"); + if (ret < 0 && ret != -ENODEV) return dev_err_probe(dev, ret, "failed to enable vs regulator\n"); ret = ina2xx_init(dev, data); diff --git a/drivers/hwmon/ina3221.c b/drivers/hwmon/ina3221.c index 1bf479a0f793..ce0e3f214f5b 100644 --- a/drivers/hwmon/ina3221.c +++ b/drivers/hwmon/ina3221.c @@ -116,7 +116,6 @@ struct ina3221_input { * @fields: Register fields of the device * @inputs: Array of channel input source specific structures * @lock: mutex lock to serialize sysfs attribute accesses - * @debugfs: Pointer to debugfs entry for device * @reg_config: Register value of INA3221_CONFIG * @summation_shunt_resistor: equivalent shunt resistor value for summation * @summation_channel_control: Value written to SCC field in INA3221_MASK_ENABLE @@ -128,7 +127,6 @@ struct ina3221_data { struct regmap_field *fields[F_MAX_FIELDS]; struct ina3221_input inputs[INA3221_NUM_CHANNELS]; struct mutex lock; - struct dentry *debugfs; u32 reg_config; int summation_shunt_resistor; u32 summation_channel_control; @@ -913,12 +911,9 @@ static int ina3221_probe(struct i2c_client *client) goto fail; } - scnprintf(name, sizeof(name), "%s-%s", INA3221_DRIVER_NAME, dev_name(dev)); - ina->debugfs = debugfs_create_dir(name, NULL); - for (i = 0; i < INA3221_NUM_CHANNELS; i++) { scnprintf(name, sizeof(name), "in%d_summation_disable", i); - debugfs_create_bool(name, 0400, ina->debugfs, + debugfs_create_bool(name, 0400, client->debugfs, &ina->inputs[i].summation_disable); } @@ -940,8 +935,6 @@ static void ina3221_remove(struct i2c_client *client) struct ina3221_data *ina = dev_get_drvdata(&client->dev); int i; - debugfs_remove_recursive(ina->debugfs); - pm_runtime_disable(ina->pm_dev); pm_runtime_set_suspended(ina->pm_dev); diff --git a/drivers/hwmon/isl28022.c b/drivers/hwmon/isl28022.c index f9edcfd164c2..c2e559dde63f 100644 --- a/drivers/hwmon/isl28022.c +++ b/drivers/hwmon/isl28022.c @@ -154,6 +154,7 @@ static int isl28022_read_current(struct device *dev, u32 attr, long *val) struct isl28022_data *data = dev_get_drvdata(dev); unsigned int regval; int err; + u16 sign_bit; switch (attr) { case hwmon_curr_input: @@ -161,8 +162,9 @@ static int isl28022_read_current(struct device *dev, u32 attr, long *val) ISL28022_REG_CURRENT, ®val); if (err < 0) return err; - *val = ((long)regval * 1250L * (long)data->gain) / - (long)data->shunt; + sign_bit = (regval >> 15) & 0x01; + *val = (((long)(((u16)regval) & 0x7FFF) - (sign_bit * 32768)) * + 1250L * (long)data->gain) / (long)data->shunt; break; default: return -EOPNOTSUPP; @@ -301,7 +303,7 @@ static const struct regmap_config isl28022_regmap_config = { .writeable_reg = isl28022_is_writeable_reg, .volatile_reg = isl28022_is_volatile_reg, .val_format_endian = REGMAP_ENDIAN_BIG, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .use_single_read = true, .use_single_write = true, }; @@ -324,26 +326,6 @@ static int shunt_voltage_show(struct seq_file *seqf, void *unused) } DEFINE_SHOW_ATTRIBUTE(shunt_voltage); -static struct dentry *isl28022_debugfs_root; - -static void isl28022_debugfs_remove(void *res) -{ - debugfs_remove_recursive(res); -} - -static void isl28022_debugfs_init(struct i2c_client *client, struct isl28022_data *data) -{ - char name[16]; - struct dentry *debugfs; - - scnprintf(name, sizeof(name), "%d-%04hx", client->adapter->nr, client->addr); - - debugfs = debugfs_create_dir(name, isl28022_debugfs_root); - debugfs_create_file("shunt_voltage", 0444, debugfs, data, &shunt_voltage_fops); - - devm_add_action_or_reset(&client->dev, isl28022_debugfs_remove, debugfs); -} - /* * read property values and make consistency checks. * @@ -475,7 +457,7 @@ static int isl28022_probe(struct i2c_client *client) if (err) return err; - isl28022_debugfs_init(client, data); + debugfs_create_file("shunt_voltage", 0444, client->debugfs, data, &shunt_voltage_fops); hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, &isl28022_chip_info, NULL); @@ -486,7 +468,7 @@ static int isl28022_probe(struct i2c_client *client) } static const struct i2c_device_id isl28022_ids[] = { - { "isl28022", 0}, + { "isl28022" }, { /* LIST END */ } }; MODULE_DEVICE_TABLE(i2c, isl28022_ids); @@ -505,30 +487,7 @@ static struct i2c_driver isl28022_driver = { .probe = isl28022_probe, .id_table = isl28022_ids, }; - -static int __init -isl28022_init(void) -{ - int err; - - isl28022_debugfs_root = debugfs_create_dir("isl28022", NULL); - err = i2c_add_driver(&isl28022_driver); - if (!err) - return 0; - - debugfs_remove_recursive(isl28022_debugfs_root); - return err; -} - -static void __exit -isl28022_exit(void) -{ - i2c_del_driver(&isl28022_driver); - debugfs_remove_recursive(isl28022_debugfs_root); -} - -module_init(isl28022_init); -module_exit(isl28022_exit); +module_i2c_driver(isl28022_driver); MODULE_AUTHOR("Carsten Spieß <mail@carsten-spiess.de>"); MODULE_DESCRIPTION("ISL28022 driver"); diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c index 7dc19c5d62ac..babf2413d666 100644 --- a/drivers/hwmon/k10temp.c +++ b/drivers/hwmon/k10temp.c @@ -20,7 +20,7 @@ #include <linux/module.h> #include <linux/pci.h> #include <linux/pci_ids.h> -#include <asm/amd_nb.h> +#include <asm/amd/node.h> #include <asm/processor.h> MODULE_DESCRIPTION("AMD Family 10h+ CPU core temperature monitor"); @@ -150,6 +150,11 @@ static void read_tempreg_nb_f15(struct pci_dev *pdev, u32 *regval) F15H_M60H_REPORTED_TEMP_CTRL_OFFSET, regval); } +static u16 amd_pci_dev_to_node_id(struct pci_dev *pdev) +{ + return PCI_SLOT(pdev->devfn) - AMD_NODE0_PCI_SLOT; +} + static void read_tempreg_nb_zen(struct pci_dev *pdev, u32 *regval) { if (amd_smn_read(amd_pci_dev_to_node_id(pdev), @@ -462,6 +467,7 @@ static int k10temp_probe(struct pci_dev *pdev, const struct pci_device_id *id) k10temp_get_ccd_support(data, 4); break; case 0x31: /* Zen2 Threadripper */ + case 0x47: /* Cyan Skillfish */ case 0x60: /* Renoir */ case 0x68: /* Lucienne */ case 0x71: /* Zen2 */ @@ -497,6 +503,13 @@ static int k10temp_probe(struct pci_dev *pdev, const struct pci_device_id *id) k10temp_get_ccd_support(data, 12); break; } + } else if (boot_cpu_data.x86 == 0x1a) { + switch (boot_cpu_data.x86_model) { + case 0x40 ... 0x4f: /* Zen5 Ryzen Desktop */ + data->ccd_offset = 0x308; + k10temp_get_ccd_support(data, 8); + break; + } } for (i = 0; i < ARRAY_SIZE(tctl_offset_table); i++) { @@ -530,6 +543,7 @@ static const struct pci_device_id k10temp_id_table[] = { { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M10H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M30H_DF_F3) }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M40H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M60H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_MA0H_DF_F3) }, diff --git a/drivers/hwmon/kbatt.c b/drivers/hwmon/kbatt.c new file mode 100644 index 000000000000..501b8f4ded33 --- /dev/null +++ b/drivers/hwmon/kbatt.c @@ -0,0 +1,147 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2025 KEBA Industrial Automation GmbH + * + * Driver for KEBA battery monitoring controller FPGA IP core + */ + +#include <linux/hwmon.h> +#include <linux/io.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/auxiliary_bus.h> +#include <linux/misc/keba.h> +#include <linux/mutex.h> + +#define KBATT "kbatt" + +#define KBATT_CONTROL_REG 0x4 +#define KBATT_CONTROL_BAT_TEST 0x01 + +#define KBATT_STATUS_REG 0x8 +#define KBATT_STATUS_BAT_OK 0x01 + +#define KBATT_MAX_UPD_INTERVAL (10 * HZ) +#define KBATT_SETTLE_TIME_US (100 * USEC_PER_MSEC) + +struct kbatt { + /* update lock */ + struct mutex lock; + void __iomem *base; + + unsigned long next_update; /* in jiffies */ + bool alarm; +}; + +static bool kbatt_alarm(struct kbatt *kbatt) +{ + mutex_lock(&kbatt->lock); + + if (!kbatt->next_update || time_after(jiffies, kbatt->next_update)) { + /* switch load on */ + iowrite8(KBATT_CONTROL_BAT_TEST, + kbatt->base + KBATT_CONTROL_REG); + + /* wait some time to let things settle */ + fsleep(KBATT_SETTLE_TIME_US); + + /* check battery state */ + if (ioread8(kbatt->base + KBATT_STATUS_REG) & + KBATT_STATUS_BAT_OK) + kbatt->alarm = false; + else + kbatt->alarm = true; + + /* switch load off */ + iowrite8(0, kbatt->base + KBATT_CONTROL_REG); + + kbatt->next_update = jiffies + KBATT_MAX_UPD_INTERVAL; + } + + mutex_unlock(&kbatt->lock); + + return kbatt->alarm; +} + +static int kbatt_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct kbatt *kbatt = dev_get_drvdata(dev); + + *val = kbatt_alarm(kbatt) ? 1 : 0; + + return 0; +} + +static umode_t kbatt_is_visible(const void *data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + if (channel == 0 && attr == hwmon_in_min_alarm) + return 0444; + + return 0; +} + +static const struct hwmon_channel_info *kbatt_info[] = { + HWMON_CHANNEL_INFO(in, + /* 0: input minimum alarm channel */ + HWMON_I_MIN_ALARM), + NULL +}; + +static const struct hwmon_ops kbatt_hwmon_ops = { + .is_visible = kbatt_is_visible, + .read = kbatt_read, +}; + +static const struct hwmon_chip_info kbatt_chip_info = { + .ops = &kbatt_hwmon_ops, + .info = kbatt_info, +}; + +static int kbatt_probe(struct auxiliary_device *auxdev, + const struct auxiliary_device_id *id) +{ + struct keba_batt_auxdev *kbatt_auxdev = + container_of(auxdev, struct keba_batt_auxdev, auxdev); + struct device *dev = &auxdev->dev; + struct device *hwmon_dev; + struct kbatt *kbatt; + int retval; + + kbatt = devm_kzalloc(dev, sizeof(*kbatt), GFP_KERNEL); + if (!kbatt) + return -ENOMEM; + + retval = devm_mutex_init(dev, &kbatt->lock); + if (retval) + return retval; + + kbatt->base = devm_ioremap_resource(dev, &kbatt_auxdev->io); + if (IS_ERR(kbatt->base)) + return PTR_ERR(kbatt->base); + + hwmon_dev = devm_hwmon_device_register_with_info(dev, KBATT, kbatt, + &kbatt_chip_info, + NULL); + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static const struct auxiliary_device_id kbatt_devtype_aux[] = { + { .name = "keba.batt" }, + {} +}; +MODULE_DEVICE_TABLE(auxiliary, kbatt_devtype_aux); + +static struct auxiliary_driver kbatt_driver_aux = { + .name = KBATT, + .id_table = kbatt_devtype_aux, + .probe = kbatt_probe, +}; +module_auxiliary_driver(kbatt_driver_aux); + +MODULE_AUTHOR("Petar Bojanic <boja@keba.com>"); +MODULE_AUTHOR("Gerhard Engleder <eg@keba.com>"); +MODULE_DESCRIPTION("KEBA battery monitoring controller driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/kfan.c b/drivers/hwmon/kfan.c new file mode 100644 index 000000000000..f353acb66749 --- /dev/null +++ b/drivers/hwmon/kfan.c @@ -0,0 +1,246 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2025 KEBA Industrial Automation GmbH + * + * Driver for KEBA fan controller FPGA IP core + * + */ + +#include <linux/hwmon.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/auxiliary_bus.h> +#include <linux/misc/keba.h> + +#define KFAN "kfan" + +#define KFAN_CONTROL_REG 0x04 + +#define KFAN_STATUS_REG 0x08 +#define KFAN_STATUS_PRESENT 0x01 +#define KFAN_STATUS_REGULABLE 0x02 +#define KFAN_STATUS_TACHO 0x04 +#define KFAN_STATUS_BLOCKED 0x08 + +#define KFAN_TACHO_REG 0x0c + +#define KFAN_DEFAULT_DIV 2 + +struct kfan { + void __iomem *base; + bool tacho; + bool regulable; + + /* hwmon API configuration */ + u32 fan_channel_config[2]; + struct hwmon_channel_info fan_info; + u32 pwm_channel_config[2]; + struct hwmon_channel_info pwm_info; + const struct hwmon_channel_info *info[3]; + struct hwmon_chip_info chip; +}; + +static bool kfan_get_fault(struct kfan *kfan) +{ + u8 status = ioread8(kfan->base + KFAN_STATUS_REG); + + if (!(status & KFAN_STATUS_PRESENT)) + return true; + + if (!kfan->tacho && (status & KFAN_STATUS_BLOCKED)) + return true; + + return false; +} + +static unsigned int kfan_count_to_rpm(u16 count) +{ + if (count == 0 || count == 0xffff) + return 0; + + return 5000000UL / (KFAN_DEFAULT_DIV * count); +} + +static unsigned int kfan_get_rpm(struct kfan *kfan) +{ + unsigned int rpm; + u16 count; + + count = ioread16(kfan->base + KFAN_TACHO_REG); + rpm = kfan_count_to_rpm(count); + + return rpm; +} + +static unsigned int kfan_get_pwm(struct kfan *kfan) +{ + return ioread8(kfan->base + KFAN_CONTROL_REG); +} + +static int kfan_set_pwm(struct kfan *kfan, long val) +{ + if (val < 0 || val > 0xff) + return -EINVAL; + + /* if none-regulable, then only 0 or 0xff can be written */ + if (!kfan->regulable && val > 0) + val = 0xff; + + iowrite8(val, kfan->base + KFAN_CONTROL_REG); + + return 0; +} + +static int kfan_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + struct kfan *kfan = dev_get_drvdata(dev); + + switch (type) { + case hwmon_pwm: + switch (attr) { + case hwmon_pwm_input: + return kfan_set_pwm(kfan, val); + default: + break; + } + break; + default: + break; + } + + return -EOPNOTSUPP; +} + +static int kfan_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct kfan *kfan = dev_get_drvdata(dev); + + switch (type) { + case hwmon_fan: + switch (attr) { + case hwmon_fan_fault: + *val = kfan_get_fault(kfan); + return 0; + case hwmon_fan_input: + *val = kfan_get_rpm(kfan); + return 0; + default: + break; + } + break; + case hwmon_pwm: + switch (attr) { + case hwmon_pwm_input: + *val = kfan_get_pwm(kfan); + return 0; + default: + break; + } + break; + default: + break; + } + + return -EOPNOTSUPP; +} + +static umode_t kfan_is_visible(const void *data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_fan: + switch (attr) { + case hwmon_fan_input: + return 0444; + case hwmon_fan_fault: + return 0444; + default: + break; + } + break; + case hwmon_pwm: + switch (attr) { + case hwmon_pwm_input: + return 0644; + default: + break; + } + break; + default: + break; + } + + return 0; +} + +static const struct hwmon_ops kfan_hwmon_ops = { + .is_visible = kfan_is_visible, + .read = kfan_read, + .write = kfan_write, +}; + +static int kfan_probe(struct auxiliary_device *auxdev, + const struct auxiliary_device_id *id) +{ + struct keba_fan_auxdev *kfan_auxdev = + container_of(auxdev, struct keba_fan_auxdev, auxdev); + struct device *dev = &auxdev->dev; + struct device *hwmon_dev; + struct kfan *kfan; + u8 status; + + kfan = devm_kzalloc(dev, sizeof(*kfan), GFP_KERNEL); + if (!kfan) + return -ENOMEM; + + kfan->base = devm_ioremap_resource(dev, &kfan_auxdev->io); + if (IS_ERR(kfan->base)) + return PTR_ERR(kfan->base); + + status = ioread8(kfan->base + KFAN_STATUS_REG); + if (status & KFAN_STATUS_REGULABLE) + kfan->regulable = true; + if (status & KFAN_STATUS_TACHO) + kfan->tacho = true; + + /* fan */ + kfan->fan_channel_config[0] = HWMON_F_FAULT; + if (kfan->tacho) + kfan->fan_channel_config[0] |= HWMON_F_INPUT; + kfan->fan_info.type = hwmon_fan; + kfan->fan_info.config = kfan->fan_channel_config; + kfan->info[0] = &kfan->fan_info; + + /* PWM */ + kfan->pwm_channel_config[0] = HWMON_PWM_INPUT; + kfan->pwm_info.type = hwmon_pwm; + kfan->pwm_info.config = kfan->pwm_channel_config; + kfan->info[1] = &kfan->pwm_info; + + kfan->chip.ops = &kfan_hwmon_ops; + kfan->chip.info = kfan->info; + hwmon_dev = devm_hwmon_device_register_with_info(dev, KFAN, kfan, + &kfan->chip, NULL); + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static const struct auxiliary_device_id kfan_devtype_aux[] = { + { .name = "keba.fan" }, + {} +}; +MODULE_DEVICE_TABLE(auxiliary, kfan_devtype_aux); + +static struct auxiliary_driver kfan_driver_aux = { + .name = KFAN, + .id_table = kfan_devtype_aux, + .probe = kfan_probe, +}; +module_auxiliary_driver(kfan_driver_aux); + +MODULE_AUTHOR("Petar Bojanic <boja@keba.com>"); +MODULE_AUTHOR("Gerhard Engleder <eg@keba.com>"); +MODULE_DESCRIPTION("KEBA fan controller driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index 2c2205aec7d4..9b4875e2fd8d 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -11,6 +11,7 @@ #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> +#include <linux/i3c/device.h> #include <linux/hwmon.h> #include <linux/err.h> #include <linux/of.h> @@ -38,6 +39,7 @@ enum lm75_type { /* keep sorted in alphabetical order */ max6626, max31725, mcp980x, + p3t1755, pct2075, stds75, stlm75, @@ -104,17 +106,15 @@ static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c, #define LM75_REG_MAX 0x03 #define PCT2075_REG_IDLE 0x04 -/* Each client has this additional data */ struct lm75_data { - struct i2c_client *client; struct regmap *regmap; - struct regulator *vs; u16 orig_conf; - u16 current_conf; u8 resolution; /* In bits, 9 to 16 */ unsigned int sample_time; /* In ms */ enum lm75_type kind; const struct lm75_params *params; + u8 reg_buf[1]; + u8 val_buf[3]; }; /*-----------------------------------------------------------------------*/ @@ -222,6 +222,13 @@ static const struct lm75_params device_params[] = { .default_resolution = 9, .default_sample_time = MSEC_PER_SEC / 18, }, + [p3t1755] = { + .clr_mask = 1 << 1 | 1 << 7, /* disable SMBAlert and one-shot */ + .default_resolution = 12, + .default_sample_time = 55, + .num_sample_times = 4, + .sample_times = (unsigned int []){ 28, 55, 110, 220 }, + }, [pct2075] = { .default_resolution = 11, .default_sample_time = MSEC_PER_SEC / 10, @@ -276,6 +283,7 @@ static const struct lm75_params device_params[] = { .default_sample_time = 125, .num_sample_times = 4, .sample_times = (unsigned int []){ 125, 250, 1000, 4000 }, + .alarm = true, }, [tmp175] = { .set_mask = 3 << 5, /* 12-bit mode */ @@ -332,41 +340,11 @@ static inline long lm75_reg_to_mc(s16 temp, u8 resolution) return ((temp >> (16 - resolution)) * 1000) >> (resolution - 8); } -static int lm75_write_config(struct lm75_data *data, u16 set_mask, - u16 clr_mask) -{ - unsigned int value; - - clr_mask |= LM75_SHUTDOWN << (8 * data->params->config_reg_16bits); - value = data->current_conf & ~clr_mask; - value |= set_mask; - - if (data->current_conf != value) { - s32 err; - if (data->params->config_reg_16bits) - err = regmap_write(data->regmap, LM75_REG_CONF, value); - else - err = i2c_smbus_write_byte_data(data->client, - LM75_REG_CONF, - value); - if (err) - return err; - data->current_conf = value; - } - return 0; -} - -static int lm75_read_config(struct lm75_data *data) +static inline int lm75_write_config(struct lm75_data *data, u16 set_mask, + u16 clr_mask) { - int ret; - unsigned int status; - - if (data->params->config_reg_16bits) { - ret = regmap_read(data->regmap, LM75_REG_CONF, &status); - return ret ? ret : status; - } - - return i2c_smbus_read_byte_data(data->client, LM75_REG_CONF); + return regmap_update_bits(data->regmap, LM75_REG_CONF, + clr_mask | LM75_SHUTDOWN, set_mask); } static irqreturn_t lm75_alarm_handler(int irq, void *private) @@ -418,7 +396,8 @@ static int lm75_read(struct device *dev, enum hwmon_sensor_types type, if (attr == hwmon_temp_alarm) { switch (data->kind) { case as6200: - *val = (regval >> 5) & 0x1; + case tmp112: + *val = (regval >> 13) & 0x1; break; default: return -EINVAL; @@ -469,7 +448,6 @@ static int lm75_write_temp(struct device *dev, u32 attr, long temp) static int lm75_update_interval(struct device *dev, long val) { struct lm75_data *data = dev_get_drvdata(dev); - unsigned int reg; u8 index; s32 err; @@ -489,19 +467,14 @@ static int lm75_update_interval(struct device *dev, long val) break; case tmp112: case as6200: - err = regmap_read(data->regmap, LM75_REG_CONF, ®); - if (err < 0) - return err; - reg &= ~0x00c0; - reg |= (3 - index) << 6; - err = regmap_write(data->regmap, LM75_REG_CONF, reg); + err = regmap_update_bits(data->regmap, LM75_REG_CONF, + 0xc000, (3 - index) << 14); if (err < 0) return err; data->sample_time = data->params->sample_times[index]; break; case pct2075: - err = i2c_smbus_write_byte_data(data->client, PCT2075_REG_IDLE, - index + 1); + err = regmap_write(data->regmap, PCT2075_REG_IDLE, index + 1); if (err) return err; data->sample_time = data->params->sample_times[index]; @@ -598,6 +571,115 @@ static bool lm75_is_volatile_reg(struct device *dev, unsigned int reg) return reg == LM75_REG_TEMP || reg == LM75_REG_CONF; } +static int lm75_i2c_reg_read(void *context, unsigned int reg, unsigned int *val) +{ + struct i2c_client *client = context; + struct lm75_data *data = i2c_get_clientdata(client); + int ret; + + if (reg == LM75_REG_CONF) { + if (!data->params->config_reg_16bits) + ret = i2c_smbus_read_byte_data(client, LM75_REG_CONF); + else + ret = i2c_smbus_read_word_data(client, LM75_REG_CONF); + } else { + ret = i2c_smbus_read_word_swapped(client, reg); + } + if (ret < 0) + return ret; + *val = ret; + return 0; +} + +static int lm75_i2c_reg_write(void *context, unsigned int reg, unsigned int val) +{ + struct i2c_client *client = context; + struct lm75_data *data = i2c_get_clientdata(client); + + if (reg == PCT2075_REG_IDLE || + (reg == LM75_REG_CONF && !data->params->config_reg_16bits)) + return i2c_smbus_write_byte_data(client, reg, val); + else if (reg == LM75_REG_CONF) + return i2c_smbus_write_word_data(client, reg, val); + return i2c_smbus_write_word_swapped(client, reg, val); +} + +static const struct regmap_bus lm75_i2c_regmap_bus = { + .reg_read = lm75_i2c_reg_read, + .reg_write = lm75_i2c_reg_write, +}; + +static int lm75_i3c_reg_read(void *context, unsigned int reg, unsigned int *val) +{ + struct i3c_device *i3cdev = context; + struct lm75_data *data = i3cdev_get_drvdata(i3cdev); + struct i3c_priv_xfer xfers[] = { + { + .rnw = false, + .len = 1, + .data.out = data->reg_buf, + }, + { + .rnw = true, + .len = 2, + .data.in = data->val_buf, + }, + }; + int ret; + + data->reg_buf[0] = reg; + + if (reg == LM75_REG_CONF && !data->params->config_reg_16bits) + xfers[1].len--; + + ret = i3c_device_do_priv_xfers(i3cdev, xfers, 2); + if (ret < 0) + return ret; + + if (reg == LM75_REG_CONF && !data->params->config_reg_16bits) + *val = data->val_buf[0]; + else if (reg == LM75_REG_CONF) + *val = data->val_buf[0] | (data->val_buf[1] << 8); + else + *val = data->val_buf[1] | (data->val_buf[0] << 8); + + return 0; +} + +static int lm75_i3c_reg_write(void *context, unsigned int reg, unsigned int val) +{ + struct i3c_device *i3cdev = context; + struct lm75_data *data = i3cdev_get_drvdata(i3cdev); + struct i3c_priv_xfer xfers[] = { + { + .rnw = false, + .len = 3, + .data.out = data->val_buf, + }, + }; + + data->val_buf[0] = reg; + + if (reg == PCT2075_REG_IDLE || + (reg == LM75_REG_CONF && !data->params->config_reg_16bits)) { + xfers[0].len--; + data->val_buf[1] = val & 0xff; + } else if (reg == LM75_REG_CONF) { + data->val_buf[1] = val & 0xff; + data->val_buf[2] = (val >> 8) & 0xff; + } else { + data->val_buf[1] = (val >> 8) & 0xff; + data->val_buf[2] = val & 0xff; + } + + return i3c_device_do_priv_xfers(i3cdev, xfers, 1); +} + +static const struct regmap_bus lm75_i3c_regmap_bus = { + .reg_read = lm75_i3c_reg_read, + .reg_write = lm75_i3c_reg_write, +}; + static const struct regmap_config lm75_regmap_config = { .reg_bits = 8, .val_bits = 16, @@ -610,46 +692,33 @@ static const struct regmap_config lm75_regmap_config = { .use_single_write = true, }; -static void lm75_disable_regulator(void *data) -{ - struct lm75_data *lm75 = data; - - regulator_disable(lm75->vs); -} - static void lm75_remove(void *data) { struct lm75_data *lm75 = data; - struct i2c_client *client = lm75->client; - i2c_smbus_write_byte_data(client, LM75_REG_CONF, lm75->orig_conf); + regmap_write(lm75->regmap, LM75_REG_CONF, lm75->orig_conf); } -static int lm75_probe(struct i2c_client *client) +static int lm75_generic_probe(struct device *dev, const char *name, + enum lm75_type kind, int irq, struct regmap *regmap) { - struct device *dev = &client->dev; struct device *hwmon_dev; struct lm75_data *data; int status, err; - if (!i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) - return -EIO; - data = devm_kzalloc(dev, sizeof(struct lm75_data), GFP_KERNEL); if (!data) return -ENOMEM; - data->client = client; - data->kind = (uintptr_t)i2c_get_match_data(client); + /* needed by custom regmap callbacks */ + dev_set_drvdata(dev, data); - data->vs = devm_regulator_get(dev, "vs"); - if (IS_ERR(data->vs)) - return PTR_ERR(data->vs); + data->kind = kind; + data->regmap = regmap; - data->regmap = devm_regmap_init_i2c(client, &lm75_regmap_config); - if (IS_ERR(data->regmap)) - return PTR_ERR(data->regmap); + err = devm_regulator_get_enable(dev, "vs"); + if (err) + return err; /* Set to LM75 resolution (9 bits, 1/2 degree C) and range. * Then tweak to be more precise when appropriate. @@ -661,25 +730,11 @@ static int lm75_probe(struct i2c_client *client) data->sample_time = data->params->default_sample_time; data->resolution = data->params->default_resolution; - /* Enable the power */ - err = regulator_enable(data->vs); - if (err) { - dev_err(dev, "failed to enable regulator: %d\n", err); - return err; - } - - err = devm_add_action_or_reset(dev, lm75_disable_regulator, data); + /* Cache original configuration */ + err = regmap_read(data->regmap, LM75_REG_CONF, &status); if (err) return err; - - /* Cache original configuration */ - status = lm75_read_config(data); - if (status < 0) { - dev_dbg(dev, "Can't read config? %d\n", status); - return status; - } data->orig_conf = status; - data->current_conf = status; err = lm75_write_config(data, data->params->set_mask, data->params->clr_mask); @@ -690,20 +745,19 @@ static int lm75_probe(struct i2c_client *client) if (err) return err; - hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, - data, &lm75_chip_info, - NULL); + hwmon_dev = devm_hwmon_device_register_with_info(dev, name, data, + &lm75_chip_info, NULL); if (IS_ERR(hwmon_dev)) return PTR_ERR(hwmon_dev); - if (client->irq) { + if (irq) { if (data->params->alarm) { err = devm_request_threaded_irq(dev, - client->irq, + irq, NULL, &lm75_alarm_handler, IRQF_ONESHOT, - client->name, + name, hwmon_dev); if (err) return err; @@ -713,12 +767,29 @@ static int lm75_probe(struct i2c_client *client) } } - dev_info(dev, "%s: sensor '%s'\n", dev_name(hwmon_dev), client->name); + dev_info(dev, "%s: sensor '%s'\n", dev_name(hwmon_dev), name); return 0; } -static const struct i2c_device_id lm75_ids[] = { +static int lm75_i2c_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct regmap *regmap; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) + return -EOPNOTSUPP; + + regmap = devm_regmap_init(dev, &lm75_i2c_regmap_bus, client, &lm75_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + return lm75_generic_probe(dev, client->name, (uintptr_t)i2c_get_match_data(client), + client->irq, regmap); +} + +static const struct i2c_device_id lm75_i2c_ids[] = { { "adt75", adt75, }, { "as6200", as6200, }, { "at30ts74", at30ts74, }, @@ -734,6 +805,7 @@ static const struct i2c_device_id lm75_ids[] = { { "max31725", max31725, }, { "max31726", max31725, }, { "mcp980x", mcp980x, }, + { "p3t1755", p3t1755, }, { "pct2075", pct2075, }, { "stds75", stds75, }, { "stlm75", stlm75, }, @@ -750,7 +822,38 @@ static const struct i2c_device_id lm75_ids[] = { { "tmp1075", tmp1075, }, { /* LIST END */ } }; -MODULE_DEVICE_TABLE(i2c, lm75_ids); +MODULE_DEVICE_TABLE(i2c, lm75_i2c_ids); + +struct lm75_i3c_device { + enum lm75_type type; + const char *name; +}; + +static const struct lm75_i3c_device lm75_i3c_p3t1755 = { + .name = "p3t1755", + .type = p3t1755, +}; + +static const struct i3c_device_id lm75_i3c_ids[] = { + I3C_DEVICE(0x011b, 0x152a, &lm75_i3c_p3t1755), + { /* LIST END */ } +}; +MODULE_DEVICE_TABLE(i3c, lm75_i3c_ids); + +static int lm75_i3c_probe(struct i3c_device *i3cdev) +{ + struct device *dev = i3cdev_to_dev(i3cdev); + const struct lm75_i3c_device *id_data; + struct regmap *regmap; + + regmap = devm_regmap_init(dev, &lm75_i3c_regmap_bus, i3cdev, &lm75_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + id_data = i3c_device_match_id(i3cdev, lm75_i3c_ids)->data; + + return lm75_generic_probe(dev, id_data->name, id_data->type, 0, regmap); +} static const struct of_device_id __maybe_unused lm75_of_match[] = { { @@ -814,6 +917,10 @@ static const struct of_device_id __maybe_unused lm75_of_match[] = { .data = (void *)mcp980x }, { + .compatible = "nxp,p3t1755", + .data = (void *)p3t1755 + }, + { .compatible = "nxp,pct2075", .data = (void *)pct2075 }, @@ -972,32 +1079,16 @@ static int lm75_detect(struct i2c_client *new_client, #ifdef CONFIG_PM static int lm75_suspend(struct device *dev) { - int status; - struct i2c_client *client = to_i2c_client(dev); + struct lm75_data *data = dev_get_drvdata(dev); - status = i2c_smbus_read_byte_data(client, LM75_REG_CONF); - if (status < 0) { - dev_dbg(&client->dev, "Can't read config? %d\n", status); - return status; - } - status = status | LM75_SHUTDOWN; - i2c_smbus_write_byte_data(client, LM75_REG_CONF, status); - return 0; + return regmap_update_bits(data->regmap, LM75_REG_CONF, LM75_SHUTDOWN, LM75_SHUTDOWN); } static int lm75_resume(struct device *dev) { - int status; - struct i2c_client *client = to_i2c_client(dev); + struct lm75_data *data = dev_get_drvdata(dev); - status = i2c_smbus_read_byte_data(client, LM75_REG_CONF); - if (status < 0) { - dev_dbg(&client->dev, "Can't read config? %d\n", status); - return status; - } - status = status & ~LM75_SHUTDOWN; - i2c_smbus_write_byte_data(client, LM75_REG_CONF, status); - return 0; + return regmap_update_bits(data->regmap, LM75_REG_CONF, LM75_SHUTDOWN, 0); } static const struct dev_pm_ops lm75_dev_pm_ops = { @@ -1009,20 +1100,28 @@ static const struct dev_pm_ops lm75_dev_pm_ops = { #define LM75_DEV_PM_OPS NULL #endif /* CONFIG_PM */ -static struct i2c_driver lm75_driver = { +static struct i2c_driver lm75_i2c_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "lm75", .of_match_table = of_match_ptr(lm75_of_match), .pm = LM75_DEV_PM_OPS, }, - .probe = lm75_probe, - .id_table = lm75_ids, + .probe = lm75_i2c_probe, + .id_table = lm75_i2c_ids, .detect = lm75_detect, .address_list = normal_i2c, }; -module_i2c_driver(lm75_driver); +static struct i3c_driver lm75_i3c_driver = { + .driver = { + .name = "lm75_i3c", + }, + .probe = lm75_i3c_probe, + .id_table = lm75_i3c_ids, +}; + +module_i3c_i2c_driver(lm75_i3c_driver, &lm75_i2c_driver) MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>"); MODULE_DESCRIPTION("LM75 driver"); diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index 511d95a0efb3..c1f528e292f3 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -90,6 +90,9 @@ * This driver also supports NE1618 from Philips. It is similar to NE1617 * but supports 11 bit external temperature values. * + * This driver also supports NCT7716, NCT7717 and NCT7718 from Nuvoton. + * The NCT7716 is similar to NCT7717 but has one more address support. + * * 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. @@ -119,13 +122,15 @@ * Address is fully defined internally and cannot be changed except for * MAX6659, MAX6680 and MAX6681. * LM86, LM89, LM90, LM99, ADM1032, ADM1032-1, ADT7461, ADT7461A, MAX6649, - * MAX6657, MAX6658, NCT1008 and W83L771 have address 0x4c. + * MAX6657, MAX6658, NCT1008, NCT7718 and W83L771 have address 0x4c. * ADM1032-2, ADT7461-2, ADT7461A-2, LM89-1, LM99-1, MAX6646, and NCT1008D * have address 0x4d. * MAX6647 has address 0x4e. * MAX6659 can have address 0x4c, 0x4d or 0x4e. * MAX6654, MAX6680, and MAX6681 can have address 0x18, 0x19, 0x1a, 0x29, * 0x2a, 0x2b, 0x4c, 0x4d or 0x4e. + * NCT7716 can have address 0x48 or 0x49. + * NCT7717 has address 0x48. * SA56004 can have address 0x48 through 0x4F. */ @@ -136,7 +141,7 @@ static const unsigned short normal_i2c[] = { enum chips { adm1023, adm1032, adt7461, adt7461a, adt7481, g781, lm84, lm90, lm99, max1617, max6642, max6646, max6648, max6654, max6657, max6659, max6680, max6696, - nct210, nct72, ne1618, sa56004, tmp451, tmp461, w83l771, + nct210, nct72, nct7716, nct7717, nct7718, ne1618, sa56004, tmp451, tmp461, w83l771, }; /* @@ -191,6 +196,9 @@ enum chips { adm1023, adm1032, adt7461, adt7461a, adt7481, #define ADT7481_REG_MAN_ID 0x3e #define ADT7481_REG_CHIP_ID 0x3d +/* NCT7716/7717/7718 registers */ +#define NCT7716_REG_CHIP_ID 0xFD + /* Device features */ #define LM90_HAVE_EXTENDED_TEMP BIT(0) /* extended temperature support */ #define LM90_HAVE_OFFSET BIT(1) /* temperature offset register */ @@ -275,6 +283,9 @@ static const struct i2c_device_id lm90_id[] = { { "nct214", nct72 }, { "nct218", nct72 }, { "nct72", nct72 }, + { "nct7716", nct7716 }, + { "nct7717", nct7717 }, + { "nct7718", nct7718 }, { "ne1618", ne1618 }, { "w83l771", w83l771 }, { "sa56004", sa56004 }, @@ -383,6 +394,18 @@ static const struct of_device_id __maybe_unused lm90_of_match[] = { .data = (void *)nct72 }, { + .compatible = "nuvoton,nct7716", + .data = (void *)nct7716 + }, + { + .compatible = "nuvoton,nct7717", + .data = (void *)nct7717 + }, + { + .compatible = "nuvoton,nct7718", + .data = (void *)nct7718 + }, + { .compatible = "winbond,w83l771", .data = (void *)w83l771 }, @@ -601,6 +624,26 @@ static const struct lm90_params lm90_params[] = { .resolution = 11, .max_convrate = 7, }, + [nct7716] = { + .flags = LM90_HAVE_ALARMS | LM90_HAVE_CONVRATE, + .alert_alarms = 0x40, + .resolution = 8, + .max_convrate = 8, + }, + [nct7717] = { + .flags = LM90_HAVE_ALARMS | LM90_HAVE_CONVRATE, + .alert_alarms = 0x40, + .resolution = 8, + .max_convrate = 8, + }, + [nct7718] = { + .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT | LM90_HAVE_CRIT + | LM90_HAVE_ALARMS | LM90_HAVE_LOW | LM90_HAVE_CONVRATE + | LM90_HAVE_REMOTE_EXT, + .alert_alarms = 0x7c, + .resolution = 11, + .max_convrate = 8, + }, [ne1618] = { .flags = LM90_PAUSE_FOR_CONFIG | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_LOW | LM90_HAVE_CONVRATE | LM90_HAVE_REMOTE_EXT, @@ -1192,7 +1235,7 @@ static int lm90_update_alarms(struct lm90_data *data, bool force) static void lm90_alert_work(struct work_struct *__work) { - struct delayed_work *delayed_work = container_of(__work, struct delayed_work, work); + struct delayed_work *delayed_work = to_delayed_work(__work); struct lm90_data *data = container_of(delayed_work, struct lm90_data, alert_work); /* Nothing to do if alerts are enabled */ @@ -2300,6 +2343,38 @@ static const char *lm90_detect_nuvoton(struct i2c_client *client, int chip_id, return name; } +static const char *lm90_detect_nuvoton_50(struct i2c_client *client, int chip_id, + int config1, int convrate) +{ + int chip_id2 = i2c_smbus_read_byte_data(client, NCT7716_REG_CHIP_ID); + int config2 = i2c_smbus_read_byte_data(client, LM90_REG_CONFIG2); + int address = client->addr; + const char *name = NULL; + + if (chip_id2 < 0 || config2 < 0) + return NULL; + + if (chip_id2 != 0x50 || convrate > 0x08) + return NULL; + + switch (chip_id) { + case 0x90: + if (address == 0x48 && !(config1 & 0x3e) && !(config2 & 0xfe)) + name = "nct7717"; + break; + case 0x91: + if ((address == 0x48 || address == 0x49) && !(config1 & 0x3e) && + !(config2 & 0xfe)) + name = "nct7716"; + else if (address == 0x4c && !(config1 & 0x38) && !(config2 & 0xf8)) + name = "nct7718"; + break; + default: + break; + } + return name; +} + static const char *lm90_detect_nxp(struct i2c_client *client, bool common_address, int chip_id, int config1, int convrate) { @@ -2484,6 +2559,9 @@ static int lm90_detect(struct i2c_client *client, struct i2c_board_info *info) name = lm90_detect_maxim(client, common_address, chip_id, config1, convrate); break; + case 0x50: + name = lm90_detect_nuvoton_50(client, chip_id, config1, convrate); + break; case 0x54: /* ON MC1066, Microchip TC1068, TCM1617 (originally TelCom) */ if (common_address && !(config1 & 0x3f) && !(convrate & 0xf8)) name = "mc1066"; diff --git a/drivers/hwmon/ltc2992.c b/drivers/hwmon/ltc2992.c index 541fa09dc6e7..a07e2eb93c71 100644 --- a/drivers/hwmon/ltc2992.c +++ b/drivers/hwmon/ltc2992.c @@ -256,33 +256,38 @@ static int ltc2992_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask return 0; } -static void ltc2992_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) +static int ltc2992_gpio_set(struct gpio_chip *chip, unsigned int offset, + int value) { struct ltc2992_state *st = gpiochip_get_data(chip); unsigned long gpio_ctrl; - int reg; + int reg, ret; mutex_lock(&st->gpio_mutex); reg = ltc2992_read_reg(st, ltc2992_gpio_addr_map[offset].ctrl, 1); if (reg < 0) { mutex_unlock(&st->gpio_mutex); - return; + return reg; } gpio_ctrl = reg; assign_bit(ltc2992_gpio_addr_map[offset].ctrl_bit, &gpio_ctrl, value); - ltc2992_write_reg(st, ltc2992_gpio_addr_map[offset].ctrl, 1, gpio_ctrl); + ret = ltc2992_write_reg(st, ltc2992_gpio_addr_map[offset].ctrl, 1, + gpio_ctrl); mutex_unlock(&st->gpio_mutex); + + return ret; } -static void ltc2992_gpio_set_multiple(struct gpio_chip *chip, unsigned long *mask, - unsigned long *bits) +static int ltc2992_gpio_set_multiple(struct gpio_chip *chip, unsigned long *mask, + unsigned long *bits) { struct ltc2992_state *st = gpiochip_get_data(chip); unsigned long gpio_ctrl_io = 0; unsigned long gpio_ctrl = 0; unsigned int gpio_nr; + int ret; for_each_set_bit(gpio_nr, mask, LTC2992_GPIO_NR) { if (gpio_nr < 3) @@ -293,9 +298,14 @@ static void ltc2992_gpio_set_multiple(struct gpio_chip *chip, unsigned long *mas } mutex_lock(&st->gpio_mutex); - ltc2992_write_reg(st, LTC2992_GPIO_IO_CTRL, 1, gpio_ctrl_io); - ltc2992_write_reg(st, LTC2992_GPIO_CTRL, 1, gpio_ctrl); + ret = ltc2992_write_reg(st, LTC2992_GPIO_IO_CTRL, 1, gpio_ctrl_io); + if (ret) + goto out; + + ret = ltc2992_write_reg(st, LTC2992_GPIO_CTRL, 1, gpio_ctrl); +out: mutex_unlock(&st->gpio_mutex); + return ret; } static int ltc2992_config_gpio(struct ltc2992_state *st) @@ -329,8 +339,8 @@ static int ltc2992_config_gpio(struct ltc2992_state *st) st->gc.ngpio = ARRAY_SIZE(st->gpio_names); st->gc.get = ltc2992_gpio_get; st->gc.get_multiple = ltc2992_gpio_get_multiple; - st->gc.set = ltc2992_gpio_set; - st->gc.set_multiple = ltc2992_gpio_set_multiple; + st->gc.set_rv = ltc2992_gpio_set; + st->gc.set_multiple_rv = ltc2992_gpio_set_multiple; ret = devm_gpiochip_add_data(&st->client->dev, &st->gc, st); if (ret) diff --git a/drivers/hwmon/ltc4282.c b/drivers/hwmon/ltc4282.c index 4f608a3790fb..f607fe8f7937 100644 --- a/drivers/hwmon/ltc4282.c +++ b/drivers/hwmon/ltc4282.c @@ -1512,13 +1512,6 @@ static int ltc4282_setup(struct ltc4282_state *st, struct device *dev) } if (device_property_read_bool(dev, "adi,fault-log-enable")) { - ret = regmap_set_bits(st->map, LTC4282_ADC_CTRL, - LTC4282_FAULT_LOG_EN_MASK); - if (ret) - return ret; - } - - if (device_property_read_bool(dev, "adi,fault-log-enable")) { ret = regmap_set_bits(st->map, LTC4282_ADC_CTRL, LTC4282_FAULT_LOG_EN_MASK); if (ret) return ret; @@ -1674,47 +1667,19 @@ static int ltc4282_show_power1_bad_fault_log(void *arg, u64 *val) DEFINE_DEBUGFS_ATTRIBUTE(ltc4282_power1_bad_fault_log, ltc4282_show_power1_bad_fault_log, NULL, "%llu\n"); -static void ltc4282_debugfs_remove(void *dir) -{ - debugfs_remove_recursive(dir); -} - -static void ltc4282_debugfs_init(struct ltc4282_state *st, - struct i2c_client *i2c, - const struct device *hwmon) +static void ltc4282_debugfs_init(struct ltc4282_state *st, struct i2c_client *i2c) { - const char *debugfs_name; - struct dentry *dentry; - int ret; - - if (!IS_ENABLED(CONFIG_DEBUG_FS)) - return; - - debugfs_name = devm_kasprintf(&i2c->dev, GFP_KERNEL, "ltc4282-%s", - dev_name(hwmon)); - if (!debugfs_name) - return; - - dentry = debugfs_create_dir(debugfs_name, NULL); - if (IS_ERR(dentry)) - return; - - ret = devm_add_action_or_reset(&i2c->dev, ltc4282_debugfs_remove, - dentry); - if (ret) - return; - - debugfs_create_file_unsafe("power1_bad_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("power1_bad_fault_log", 0400, i2c->debugfs, st, <c4282_power1_bad_fault_log); - debugfs_create_file_unsafe("in0_fet_short_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("in0_fet_short_fault_log", 0400, i2c->debugfs, st, <c4282_fet_short_fault_log); - debugfs_create_file_unsafe("in0_fet_bad_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("in0_fet_bad_fault_log", 0400, i2c->debugfs, st, <c4282_fet_bad_fault_log); - debugfs_create_file_unsafe("in1_crit_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("in1_crit_fault_log", 0400, i2c->debugfs, st, <c4282_in1_crit_fault_log); - debugfs_create_file_unsafe("in1_lcrit_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("in1_lcrit_fault_log", 0400, i2c->debugfs, st, <c4282_in1_lcrit_fault_log); - debugfs_create_file_unsafe("curr1_crit_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("curr1_crit_fault_log", 0400, i2c->debugfs, st, <c4282_curr1_crit_fault_log); } @@ -1757,7 +1722,7 @@ static int ltc4282_probe(struct i2c_client *i2c) if (IS_ERR(hwmon)) return PTR_ERR(hwmon); - ltc4282_debugfs_init(st, i2c, hwmon); + ltc4282_debugfs_init(st, i2c); return 0; } diff --git a/drivers/hwmon/max6639.c b/drivers/hwmon/max6639.c index 32b4d54b2076..a06346496e1d 100644 --- a/drivers/hwmon/max6639.c +++ b/drivers/hwmon/max6639.c @@ -80,6 +80,7 @@ struct max6639_data { /* Register values initialized only once */ u8 ppr[MAX6639_NUM_CHANNELS]; /* Pulses per rotation 0..3 for 1..4 ppr */ u8 rpm_range[MAX6639_NUM_CHANNELS]; /* Index in above rpm_ranges table */ + u32 target_rpm[MAX6639_NUM_CHANNELS]; /* Optional regulator for FAN supply */ struct regulator *reg; @@ -563,6 +564,10 @@ static int max6639_probe_child_from_dt(struct i2c_client *client, if (!err) data->rpm_range[i] = rpm_range_to_reg(val); + err = of_property_read_u32(child, "target-rpm", &val); + if (!err) + data->target_rpm[i] = val; + return 0; } @@ -573,6 +578,7 @@ static int max6639_init_client(struct i2c_client *client, const struct device_node *np = dev->of_node; struct device_node *child; int i, err; + u8 target_duty; /* Reset chip to default values, see below for GCONFIG setup */ err = regmap_write(data->regmap, MAX6639_REG_GCONFIG, MAX6639_GCONFIG_POR); @@ -586,6 +592,8 @@ static int max6639_init_client(struct i2c_client *client, /* default: 4000 RPM */ data->rpm_range[0] = 1; data->rpm_range[1] = 1; + data->target_rpm[0] = 4000; + data->target_rpm[1] = 4000; for_each_child_of_node(np, child) { if (strcmp(child->name, "fan")) @@ -639,8 +647,12 @@ static int max6639_init_client(struct i2c_client *client, if (err) return err; - /* PWM 120/120 (i.e. 100%) */ - err = regmap_write(data->regmap, MAX6639_REG_TARGTDUTY(i), 120); + /* Set PWM based on target RPM if specified */ + if (data->target_rpm[i] > rpm_ranges[data->rpm_range[i]]) + data->target_rpm[i] = rpm_ranges[data->rpm_range[i]]; + + target_duty = 120 * data->target_rpm[i] / rpm_ranges[data->rpm_range[i]]; + err = regmap_write(data->regmap, MAX6639_REG_TARGTDUTY(i), target_duty); if (err) return err; } diff --git a/drivers/hwmon/max77705-hwmon.c b/drivers/hwmon/max77705-hwmon.c new file mode 100644 index 000000000000..990023e6474e --- /dev/null +++ b/drivers/hwmon/max77705-hwmon.c @@ -0,0 +1,221 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * MAX77705 voltage and current hwmon driver. + * + * Copyright (C) 2025 Dzmitry Sankouski <dsankouski@gmail.com> + */ + +#include <linux/err.h> +#include <linux/hwmon-sysfs.h> +#include <linux/hwmon.h> +#include <linux/kernel.h> +#include <linux/mfd/max77705-private.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> + +struct channel_desc { + u8 reg; + u8 avg_reg; + const char *const label; + // register resolution. nano Volts for voltage, nano Amperes for current + u32 resolution; +}; + +static const struct channel_desc current_channel_desc[] = { + { + .reg = IIN_REG, + .label = "IIN_REG", + .resolution = 125000 + }, + { + .reg = ISYS_REG, + .avg_reg = AVGISYS_REG, + .label = "ISYS_REG", + .resolution = 312500 + } +}; + +static const struct channel_desc voltage_channel_desc[] = { + { + .reg = VBYP_REG, + .label = "VBYP_REG", + .resolution = 427246 + }, + { + .reg = VSYS_REG, + .label = "VSYS_REG", + .resolution = 156250 + } +}; + +static int max77705_read_and_convert(struct regmap *regmap, u8 reg, u32 res, + bool is_signed, long *val) +{ + int ret; + u32 regval; + + ret = regmap_read(regmap, reg, ®val); + if (ret < 0) + return ret; + + if (is_signed) + *val = mult_frac((long)sign_extend32(regval, 15), res, 1000000); + else + *val = mult_frac((long)regval, res, 1000000); + + return 0; +} + +static umode_t max77705_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_in: + switch (attr) { + case hwmon_in_input: + case hwmon_in_label: + return 0444; + default: + break; + } + break; + case hwmon_curr: + switch (attr) { + case hwmon_curr_input: + case hwmon_in_label: + return 0444; + case hwmon_curr_average: + if (current_channel_desc[channel].avg_reg) + return 0444; + break; + default: + break; + } + break; + default: + break; + } + return 0; +} + +static int max77705_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr, + int channel, const char **buf) +{ + switch (type) { + case hwmon_curr: + switch (attr) { + case hwmon_in_label: + *buf = current_channel_desc[channel].label; + return 0; + default: + return -EOPNOTSUPP; + } + + case hwmon_in: + switch (attr) { + case hwmon_in_label: + *buf = voltage_channel_desc[channel].label; + return 0; + default: + return -EOPNOTSUPP; + } + default: + return -EOPNOTSUPP; + } +} + +static int max77705_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct regmap *regmap = dev_get_drvdata(dev); + u8 reg; + u32 res; + + switch (type) { + case hwmon_curr: + switch (attr) { + case hwmon_curr_input: + reg = current_channel_desc[channel].reg; + res = current_channel_desc[channel].resolution; + + return max77705_read_and_convert(regmap, reg, res, true, val); + case hwmon_curr_average: + reg = current_channel_desc[channel].avg_reg; + res = current_channel_desc[channel].resolution; + + return max77705_read_and_convert(regmap, reg, res, true, val); + default: + return -EOPNOTSUPP; + } + + case hwmon_in: + switch (attr) { + case hwmon_in_input: + reg = voltage_channel_desc[channel].reg; + res = voltage_channel_desc[channel].resolution; + + return max77705_read_and_convert(regmap, reg, res, false, val); + default: + return -EOPNOTSUPP; + } + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static const struct hwmon_ops max77705_hwmon_ops = { + .is_visible = max77705_is_visible, + .read = max77705_read, + .read_string = max77705_read_string, +}; + +static const struct hwmon_channel_info *max77705_info[] = { + HWMON_CHANNEL_INFO(in, + HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL + ), + HWMON_CHANNEL_INFO(curr, + HWMON_C_INPUT | HWMON_C_LABEL, + HWMON_C_INPUT | HWMON_C_AVERAGE | HWMON_C_LABEL + ), + NULL +}; + +static const struct hwmon_chip_info max77705_chip_info = { + .ops = &max77705_hwmon_ops, + .info = max77705_info, +}; + +static int max77705_hwmon_probe(struct platform_device *pdev) +{ + struct device *hwmon_dev; + struct regmap *regmap; + + regmap = dev_get_regmap(pdev->dev.parent, NULL); + if (!regmap) + return -ENODEV; + + hwmon_dev = devm_hwmon_device_register_with_info(&pdev->dev, "max77705", regmap, + &max77705_chip_info, NULL); + if (IS_ERR(hwmon_dev)) + return dev_err_probe(&pdev->dev, PTR_ERR(hwmon_dev), + "Unable to register hwmon device\n"); + + return 0; +}; + +static struct platform_driver max77705_hwmon_driver = { + .driver = { + .name = "max77705-hwmon", + }, + .probe = max77705_hwmon_probe, +}; + +module_platform_driver(max77705_hwmon_driver); + +MODULE_AUTHOR("Dzmitry Sankouski <dsankouski@gmail.com>"); +MODULE_DESCRIPTION("MAX77705 monitor driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/nct6683.c b/drivers/hwmon/nct6683.c index f71615e06a8f..6cda35388b24 100644 --- a/drivers/hwmon/nct6683.c +++ b/drivers/hwmon/nct6683.c @@ -175,9 +175,12 @@ superio_exit(int ioreg) #define NCT6683_CUSTOMER_ID_MSI 0x201 #define NCT6683_CUSTOMER_ID_MSI2 0x200 #define NCT6683_CUSTOMER_ID_MSI3 0x207 +#define NCT6683_CUSTOMER_ID_MSI4 0x20d +#define NCT6683_CUSTOMER_ID_AMD 0x162b #define NCT6683_CUSTOMER_ID_ASROCK 0xe2c #define NCT6683_CUSTOMER_ID_ASROCK2 0xe1b #define NCT6683_CUSTOMER_ID_ASROCK3 0x1631 +#define NCT6683_CUSTOMER_ID_ASROCK4 0x163e #define NCT6683_REG_BUILD_YEAR 0x604 #define NCT6683_REG_BUILD_MONTH 0x605 @@ -1227,12 +1230,18 @@ static int nct6683_probe(struct platform_device *pdev) break; case NCT6683_CUSTOMER_ID_MSI3: break; + case NCT6683_CUSTOMER_ID_MSI4: + break; + case NCT6683_CUSTOMER_ID_AMD: + break; case NCT6683_CUSTOMER_ID_ASROCK: break; case NCT6683_CUSTOMER_ID_ASROCK2: break; case NCT6683_CUSTOMER_ID_ASROCK3: break; + case NCT6683_CUSTOMER_ID_ASROCK4: + break; default: if (!force) return -ENODEV; diff --git a/drivers/hwmon/nct6775-core.c b/drivers/hwmon/nct6775-core.c index fa3351351825..79bc67ffb998 100644 --- a/drivers/hwmon/nct6775-core.c +++ b/drivers/hwmon/nct6775-core.c @@ -273,8 +273,8 @@ static const s8 NCT6776_BEEP_BITS[NUM_BEEP_BITS] = { static const u16 NCT6776_REG_TOLERANCE_H[] = { 0x10c, 0x20c, 0x30c, 0x80c, 0x90c, 0xa0c, 0xb0c }; -static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0, 0, 0, 0 }; -static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0 }; +static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0, 0, 0, 0, 0 }; +static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0, 0 }; static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642, 0x64a, 0x64c }; diff --git a/drivers/hwmon/nct7363.c b/drivers/hwmon/nct7363.c index be7bf32f6e68..e13ab918b1ab 100644 --- a/drivers/hwmon/nct7363.c +++ b/drivers/hwmon/nct7363.c @@ -391,7 +391,7 @@ static const struct regmap_config nct7363_regmap_config = { .val_bits = 8, .use_single_read = true, .use_single_write = true, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .volatile_reg = nct7363_regmap_is_volatile, }; diff --git a/drivers/hwmon/npcm750-pwm-fan.c b/drivers/hwmon/npcm750-pwm-fan.c index db3b551828eb..802c73def428 100644 --- a/drivers/hwmon/npcm750-pwm-fan.c +++ b/drivers/hwmon/npcm750-pwm-fan.c @@ -331,7 +331,7 @@ static void npcm7xx_fan_polling(struct timer_list *t) struct npcm7xx_pwm_fan_data *data; int i; - data = from_timer(data, t, fan_timer); + data = timer_container_of(data, t, fan_timer); /* * Polling two module per one round, diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c index 0d29c8f97ba7..d21f7266c411 100644 --- a/drivers/hwmon/ntc_thermistor.c +++ b/drivers/hwmon/ntc_thermistor.c @@ -387,12 +387,9 @@ static int get_ohm_of_thermistor(struct ntc_data *data, unsigned int uv) puo = data->pullup_ohm; pdo = data->pulldown_ohm; - if (uv == 0) - return (data->connect == NTC_CONNECTED_POSITIVE) ? - INT_MAX : 0; - if (uv >= puv) - return (data->connect == NTC_CONNECTED_POSITIVE) ? - 0 : INT_MAX; + /* faulty adc value */ + if (uv == 0 || uv >= puv) + return -ENODATA; if (data->connect == NTC_CONNECTED_POSITIVE && puo == 0) n = div_u64(pdo * (puv - uv), uv); @@ -404,8 +401,10 @@ static int get_ohm_of_thermistor(struct ntc_data *data, unsigned int uv) else n = div64_u64_safe(pdo * puo * uv, pdo * (puv - uv) - puo * uv); - if (n > INT_MAX) - n = INT_MAX; + /* sensor out of bounds */ + if (n > data->comp[0].ohm || n < data->comp[data->n_comp - 1].ohm) + return -ENODATA; + return n; } diff --git a/drivers/hwmon/occ/common.c b/drivers/hwmon/occ/common.c index 9486db249c64..b3694a4209b9 100644 --- a/drivers/hwmon/occ/common.c +++ b/drivers/hwmon/occ/common.c @@ -459,12 +459,10 @@ static ssize_t occ_show_power_1(struct device *dev, return sysfs_emit(buf, "%llu\n", val); } -static u64 occ_get_powr_avg(u64 *accum, u32 *samples) +static u64 occ_get_powr_avg(u64 accum, u32 samples) { - u64 divisor = get_unaligned_be32(samples); - - return (divisor == 0) ? 0 : - div64_u64(get_unaligned_be64(accum) * 1000000ULL, divisor); + return (samples == 0) ? 0 : + mul_u64_u32_div(accum, 1000000UL, samples); } static ssize_t occ_show_power_2(struct device *dev, @@ -489,8 +487,8 @@ static ssize_t occ_show_power_2(struct device *dev, get_unaligned_be32(&power->sensor_id), power->function_id, power->apss_channel); case 1: - val = occ_get_powr_avg(&power->accumulator, - &power->update_tag); + val = occ_get_powr_avg(get_unaligned_be64(&power->accumulator), + get_unaligned_be32(&power->update_tag)); break; case 2: val = (u64)get_unaligned_be32(&power->update_tag) * @@ -527,8 +525,8 @@ static ssize_t occ_show_power_a0(struct device *dev, return sysfs_emit(buf, "%u_system\n", get_unaligned_be32(&power->sensor_id)); case 1: - val = occ_get_powr_avg(&power->system.accumulator, - &power->system.update_tag); + val = occ_get_powr_avg(get_unaligned_be64(&power->system.accumulator), + get_unaligned_be32(&power->system.update_tag)); break; case 2: val = (u64)get_unaligned_be32(&power->system.update_tag) * @@ -541,8 +539,8 @@ static ssize_t occ_show_power_a0(struct device *dev, return sysfs_emit(buf, "%u_proc\n", get_unaligned_be32(&power->sensor_id)); case 5: - val = occ_get_powr_avg(&power->proc.accumulator, - &power->proc.update_tag); + val = occ_get_powr_avg(get_unaligned_be64(&power->proc.accumulator), + get_unaligned_be32(&power->proc.update_tag)); break; case 6: val = (u64)get_unaligned_be32(&power->proc.update_tag) * @@ -555,8 +553,8 @@ static ssize_t occ_show_power_a0(struct device *dev, return sysfs_emit(buf, "%u_vdd\n", get_unaligned_be32(&power->sensor_id)); case 9: - val = occ_get_powr_avg(&power->vdd.accumulator, - &power->vdd.update_tag); + val = occ_get_powr_avg(get_unaligned_be64(&power->vdd.accumulator), + get_unaligned_be32(&power->vdd.update_tag)); break; case 10: val = (u64)get_unaligned_be32(&power->vdd.update_tag) * @@ -569,8 +567,8 @@ static ssize_t occ_show_power_a0(struct device *dev, return sysfs_emit(buf, "%u_vdn\n", get_unaligned_be32(&power->sensor_id)); case 13: - val = occ_get_powr_avg(&power->vdn.accumulator, - &power->vdn.update_tag); + val = occ_get_powr_avg(get_unaligned_be64(&power->vdn.accumulator), + get_unaligned_be32(&power->vdn.update_tag)); break; case 14: val = (u64)get_unaligned_be32(&power->vdn.update_tag) * @@ -747,29 +745,30 @@ static ssize_t occ_show_extended(struct device *dev, } /* - * Some helper macros to make it easier to define an occ_attribute. Since these - * are dynamically allocated, we shouldn't use the existing kernel macros which + * A helper to make it easier to define an occ_attribute. Since these + * are dynamically allocated, we cannot use the existing kernel macros which * stringify the name argument. */ -#define ATTR_OCC(_name, _mode, _show, _store) { \ - .attr = { \ - .name = _name, \ - .mode = VERIFY_OCTAL_PERMISSIONS(_mode), \ - }, \ - .show = _show, \ - .store = _store, \ -} - -#define SENSOR_ATTR_OCC(_name, _mode, _show, _store, _nr, _index) { \ - .dev_attr = ATTR_OCC(_name, _mode, _show, _store), \ - .index = _index, \ - .nr = _nr, \ +static void occ_init_attribute(struct occ_attribute *attr, int mode, + ssize_t (*show)(struct device *dev, struct device_attribute *attr, char *buf), + ssize_t (*store)(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count), + int nr, int index, const char *fmt, ...) +{ + va_list args; + + va_start(args, fmt); + vsnprintf(attr->name, sizeof(attr->name), fmt, args); + va_end(args); + + attr->sensor.dev_attr.attr.name = attr->name; + attr->sensor.dev_attr.attr.mode = mode; + attr->sensor.dev_attr.show = show; + attr->sensor.dev_attr.store = store; + attr->sensor.index = index; + attr->sensor.nr = nr; } -#define OCC_INIT_ATTR(_name, _mode, _show, _store, _nr, _index) \ - ((struct sensor_device_attribute_2) \ - SENSOR_ATTR_OCC(_name, _mode, _show, _store, _nr, _index)) - /* * Allocate and instatiate sensor_device_attribute_2s. It's most efficient to * use our own instead of the built-in hwmon attribute types. @@ -855,14 +854,15 @@ static int occ_setup_sensor_attrs(struct occ *occ) sensors->extended.num_sensors = 0; } - occ->attrs = devm_kzalloc(dev, sizeof(*occ->attrs) * num_attrs, + occ->attrs = devm_kcalloc(dev, num_attrs, sizeof(*occ->attrs), GFP_KERNEL); if (!occ->attrs) return -ENOMEM; /* null-terminated list */ - occ->group.attrs = devm_kzalloc(dev, sizeof(*occ->group.attrs) * - num_attrs + 1, GFP_KERNEL); + occ->group.attrs = devm_kcalloc(dev, num_attrs + 1, + sizeof(*occ->group.attrs), + GFP_KERNEL); if (!occ->group.attrs) return -ENOMEM; @@ -872,43 +872,33 @@ static int occ_setup_sensor_attrs(struct occ *occ) s = i + 1; temp = ((struct temp_sensor_2 *)sensors->temp.data) + i; - snprintf(attr->name, sizeof(attr->name), "temp%d_label", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_temp, NULL, - 0, i); + occ_init_attribute(attr, 0444, show_temp, NULL, + 0, i, "temp%d_label", s); attr++; if (sensors->temp.version == 2 && temp->fru_type == OCC_FRU_TYPE_VRM) { - snprintf(attr->name, sizeof(attr->name), - "temp%d_alarm", s); + occ_init_attribute(attr, 0444, show_temp, NULL, + 1, i, "temp%d_alarm", s); } else { - snprintf(attr->name, sizeof(attr->name), - "temp%d_input", s); + occ_init_attribute(attr, 0444, show_temp, NULL, + 1, i, "temp%d_input", s); } - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_temp, NULL, - 1, i); attr++; if (sensors->temp.version > 1) { - snprintf(attr->name, sizeof(attr->name), - "temp%d_fru_type", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_temp, NULL, 2, i); + occ_init_attribute(attr, 0444, show_temp, NULL, + 2, i, "temp%d_fru_type", s); attr++; - snprintf(attr->name, sizeof(attr->name), - "temp%d_fault", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_temp, NULL, 3, i); + occ_init_attribute(attr, 0444, show_temp, NULL, + 3, i, "temp%d_fault", s); attr++; if (sensors->temp.version == 0x10) { - snprintf(attr->name, sizeof(attr->name), - "temp%d_max", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_temp, NULL, - 4, i); + occ_init_attribute(attr, 0444, show_temp, NULL, + 4, i, "temp%d_max", s); attr++; } } @@ -917,14 +907,12 @@ static int occ_setup_sensor_attrs(struct occ *occ) for (i = 0; i < sensors->freq.num_sensors; ++i) { s = i + 1; - snprintf(attr->name, sizeof(attr->name), "freq%d_label", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_freq, NULL, - 0, i); + occ_init_attribute(attr, 0444, show_freq, NULL, + 0, i, "freq%d_label", s); attr++; - snprintf(attr->name, sizeof(attr->name), "freq%d_input", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_freq, NULL, - 1, i); + occ_init_attribute(attr, 0444, show_freq, NULL, + 1, i, "freq%d_input", s); attr++; } @@ -940,32 +928,24 @@ static int occ_setup_sensor_attrs(struct occ *occ) s = (i * 4) + 1; for (j = 0; j < 4; ++j) { - snprintf(attr->name, sizeof(attr->name), - "power%d_label", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_power, NULL, - nr++, i); + occ_init_attribute(attr, 0444, show_power, + NULL, nr++, i, + "power%d_label", s); attr++; - snprintf(attr->name, sizeof(attr->name), - "power%d_average", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_power, NULL, - nr++, i); + occ_init_attribute(attr, 0444, show_power, + NULL, nr++, i, + "power%d_average", s); attr++; - snprintf(attr->name, sizeof(attr->name), - "power%d_average_interval", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_power, NULL, - nr++, i); + occ_init_attribute(attr, 0444, show_power, + NULL, nr++, i, + "power%d_average_interval", s); attr++; - snprintf(attr->name, sizeof(attr->name), - "power%d_input", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_power, NULL, - nr++, i); + occ_init_attribute(attr, 0444, show_power, + NULL, nr++, i, + "power%d_input", s); attr++; s++; @@ -977,28 +957,20 @@ static int occ_setup_sensor_attrs(struct occ *occ) for (i = 0; i < sensors->power.num_sensors; ++i) { s = i + 1; - snprintf(attr->name, sizeof(attr->name), - "power%d_label", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_power, NULL, 0, i); + occ_init_attribute(attr, 0444, show_power, NULL, + 0, i, "power%d_label", s); attr++; - snprintf(attr->name, sizeof(attr->name), - "power%d_average", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_power, NULL, 1, i); + occ_init_attribute(attr, 0444, show_power, NULL, + 1, i, "power%d_average", s); attr++; - snprintf(attr->name, sizeof(attr->name), - "power%d_average_interval", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_power, NULL, 2, i); + occ_init_attribute(attr, 0444, show_power, NULL, + 2, i, "power%d_average_interval", s); attr++; - snprintf(attr->name, sizeof(attr->name), - "power%d_input", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_power, NULL, 3, i); + occ_init_attribute(attr, 0444, show_power, NULL, + 3, i, "power%d_input", s); attr++; } @@ -1006,56 +978,43 @@ static int occ_setup_sensor_attrs(struct occ *occ) } if (sensors->caps.num_sensors >= 1) { - snprintf(attr->name, sizeof(attr->name), "power%d_label", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL, - 0, 0); + occ_init_attribute(attr, 0444, show_caps, NULL, + 0, 0, "power%d_label", s); attr++; - snprintf(attr->name, sizeof(attr->name), "power%d_cap", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL, - 1, 0); + occ_init_attribute(attr, 0444, show_caps, NULL, + 1, 0, "power%d_cap", s); attr++; - snprintf(attr->name, sizeof(attr->name), "power%d_input", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL, - 2, 0); + occ_init_attribute(attr, 0444, show_caps, NULL, + 2, 0, "power%d_input", s); attr++; - snprintf(attr->name, sizeof(attr->name), - "power%d_cap_not_redundant", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL, - 3, 0); + occ_init_attribute(attr, 0444, show_caps, NULL, + 3, 0, "power%d_cap_not_redundant", s); attr++; - snprintf(attr->name, sizeof(attr->name), "power%d_cap_max", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL, - 4, 0); + occ_init_attribute(attr, 0444, show_caps, NULL, + 4, 0, "power%d_cap_max", s); attr++; - snprintf(attr->name, sizeof(attr->name), "power%d_cap_min", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, show_caps, NULL, - 5, 0); + occ_init_attribute(attr, 0444, show_caps, NULL, + 5, 0, "power%d_cap_min", s); attr++; - snprintf(attr->name, sizeof(attr->name), "power%d_cap_user", - s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0644, show_caps, - occ_store_caps_user, 6, 0); + occ_init_attribute(attr, 0644, show_caps, occ_store_caps_user, + 6, 0, "power%d_cap_user", s); attr++; if (sensors->caps.version > 1) { - snprintf(attr->name, sizeof(attr->name), - "power%d_cap_user_source", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_caps, NULL, 7, 0); + occ_init_attribute(attr, 0444, show_caps, NULL, + 7, 0, "power%d_cap_user_source", s); attr++; if (sensors->caps.version > 2) { - snprintf(attr->name, sizeof(attr->name), - "power%d_cap_min_soft", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - show_caps, NULL, - 8, 0); + occ_init_attribute(attr, 0444, show_caps, NULL, + 8, 0, + "power%d_cap_min_soft", s); attr++; } } @@ -1064,19 +1023,16 @@ static int occ_setup_sensor_attrs(struct occ *occ) for (i = 0; i < sensors->extended.num_sensors; ++i) { s = i + 1; - snprintf(attr->name, sizeof(attr->name), "extn%d_label", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - occ_show_extended, NULL, 0, i); + occ_init_attribute(attr, 0444, occ_show_extended, NULL, + 0, i, "extn%d_label", s); attr++; - snprintf(attr->name, sizeof(attr->name), "extn%d_flags", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - occ_show_extended, NULL, 1, i); + occ_init_attribute(attr, 0444, occ_show_extended, NULL, + 1, i, "extn%d_flags", s); attr++; - snprintf(attr->name, sizeof(attr->name), "extn%d_input", s); - attr->sensor = OCC_INIT_ATTR(attr->name, 0444, - occ_show_extended, NULL, 2, i); + occ_init_attribute(attr, 0444, occ_show_extended, NULL, + 2, i, "extn%d_input", s); attr++; } diff --git a/drivers/hwmon/occ/p9_sbe.c b/drivers/hwmon/occ/p9_sbe.c index 89761a9c8892..1e3749dfa598 100644 --- a/drivers/hwmon/occ/p9_sbe.c +++ b/drivers/hwmon/occ/p9_sbe.c @@ -30,7 +30,7 @@ struct p9_sbe_occ { #define to_p9_sbe_occ(x) container_of((x), struct p9_sbe_occ, occ) static ssize_t ffdc_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *battr, char *buf, loff_t pos, + const struct bin_attribute *battr, char *buf, loff_t pos, size_t count) { ssize_t rc = 0; @@ -48,7 +48,7 @@ static ssize_t ffdc_read(struct file *filp, struct kobject *kobj, return rc; } -static BIN_ATTR_RO(ffdc, OCC_MAX_RESP_WORDS * 4); +static const BIN_ATTR_RO(ffdc, OCC_MAX_RESP_WORDS * 4); static bool p9_sbe_occ_save_ffdc(struct p9_sbe_occ *ctx, const void *resp, size_t resp_len) diff --git a/drivers/hwmon/oxp-sensors.c b/drivers/hwmon/oxp-sensors.c deleted file mode 100644 index 83730d931824..000000000000 --- a/drivers/hwmon/oxp-sensors.c +++ /dev/null @@ -1,716 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Platform driver for OneXPlayer, AOKZOE, AYANEO, and OrangePi Handhelds - * that expose fan reading and control via hwmon sysfs. - * - * Old OXP boards have the same DMI strings and they are told apart by - * the boot cpu vendor (Intel/AMD). Of these older models only AMD is - * supported. - * - * Fan control is provided via pwm interface in the range [0-255]. - * Old AMD boards use [0-100] as range in the EC, the written value is - * scaled to accommodate for that. Newer boards like the mini PRO and - * AOKZOE are not scaled but have the same EC layout. Newer models - * like the 2 and X1 are [0-184] and are scaled to 0-255. OrangePi - * are [1-244] and scaled to 0-255. - * - * Copyright (C) 2022 Joaquín I. Aramendía <samsagax@gmail.com> - * Copyright (C) 2024 Derek J. Clark <derekjohn.clark@gmail.com> - */ - -#include <linux/acpi.h> -#include <linux/dmi.h> -#include <linux/hwmon.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/processor.h> - -/* Handle ACPI lock mechanism */ -static u32 oxp_mutex; - -#define ACPI_LOCK_DELAY_MS 500 - -static bool lock_global_acpi_lock(void) -{ - return ACPI_SUCCESS(acpi_acquire_global_lock(ACPI_LOCK_DELAY_MS, &oxp_mutex)); -} - -static bool unlock_global_acpi_lock(void) -{ - return ACPI_SUCCESS(acpi_release_global_lock(oxp_mutex)); -} - -enum oxp_board { - aok_zoe_a1 = 1, - aya_neo_2, - aya_neo_air, - aya_neo_air_1s, - aya_neo_air_plus_mendo, - aya_neo_air_pro, - aya_neo_flip, - aya_neo_geek, - aya_neo_kun, - orange_pi_neo, - oxp_2, - oxp_fly, - oxp_mini_amd, - oxp_mini_amd_a07, - oxp_mini_amd_pro, - oxp_x1, -}; - -static enum oxp_board board; - -/* Fan reading and PWM */ -#define OXP_SENSOR_FAN_REG 0x76 /* Fan reading is 2 registers long */ -#define OXP_2_SENSOR_FAN_REG 0x58 /* Fan reading is 2 registers long */ -#define OXP_SENSOR_PWM_ENABLE_REG 0x4A /* PWM enable is 1 register long */ -#define OXP_SENSOR_PWM_REG 0x4B /* PWM reading is 1 register long */ -#define PWM_MODE_AUTO 0x00 -#define PWM_MODE_MANUAL 0x01 - -/* OrangePi fan reading and PWM */ -#define ORANGEPI_SENSOR_FAN_REG 0x78 /* Fan reading is 2 registers long */ -#define ORANGEPI_SENSOR_PWM_ENABLE_REG 0x40 /* PWM enable is 1 register long */ -#define ORANGEPI_SENSOR_PWM_REG 0x38 /* PWM reading is 1 register long */ - -/* Turbo button takeover function - * Different boards have different values and EC registers - * for the same function - */ -#define OXP_TURBO_SWITCH_REG 0xF1 /* Mini Pro, OneXFly, AOKZOE */ -#define OXP_2_TURBO_SWITCH_REG 0xEB /* OXP2 and X1 */ -#define OXP_MINI_TURBO_SWITCH_REG 0x1E /* Mini AO7 */ - -#define OXP_MINI_TURBO_TAKE_VAL 0x01 /* Mini AO7 */ -#define OXP_TURBO_TAKE_VAL 0x40 /* All other models */ - -#define OXP_TURBO_RETURN_VAL 0x00 /* Common return val */ - -static const struct dmi_system_id dmi_table[] = { - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AOKZOE"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AOKZOE A1 AR07"), - }, - .driver_data = (void *)aok_zoe_a1, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AOKZOE"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AOKZOE A1 Pro"), - }, - .driver_data = (void *)aok_zoe_a1, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_MATCH(DMI_BOARD_NAME, "AYANEO 2"), - }, - .driver_data = (void *)aya_neo_2, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AIR"), - }, - .driver_data = (void *)aya_neo_air, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AIR 1S"), - }, - .driver_data = (void *)aya_neo_air_1s, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AB05-Mendocino"), - }, - .driver_data = (void *)aya_neo_air_plus_mendo, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AIR Pro"), - }, - .driver_data = (void *)aya_neo_air_pro, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_MATCH(DMI_BOARD_NAME, "FLIP"), - }, - .driver_data = (void *)aya_neo_flip, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_MATCH(DMI_BOARD_NAME, "GEEK"), - }, - .driver_data = (void *)aya_neo_geek, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "KUN"), - }, - .driver_data = (void *)aya_neo_kun, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "OrangePi"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "NEO-01"), - }, - .driver_data = (void *)orange_pi_neo, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONE XPLAYER"), - }, - .driver_data = (void *)oxp_mini_amd, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"), - DMI_MATCH(DMI_BOARD_NAME, "ONEXPLAYER 2"), - }, - .driver_data = (void *)oxp_2, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONEXPLAYER F1"), - }, - .driver_data = (void *)oxp_fly, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONEXPLAYER mini A07"), - }, - .driver_data = (void *)oxp_mini_amd_a07, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONEXPLAYER Mini Pro"), - }, - .driver_data = (void *)oxp_mini_amd_pro, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"), - DMI_MATCH(DMI_BOARD_NAME, "ONEXPLAYER X1"), - }, - .driver_data = (void *)oxp_x1, - }, - {}, -}; - -/* Helper functions to handle EC read/write */ -static int read_from_ec(u8 reg, int size, long *val) -{ - int i; - int ret; - u8 buffer; - - if (!lock_global_acpi_lock()) - return -EBUSY; - - *val = 0; - for (i = 0; i < size; i++) { - ret = ec_read(reg + i, &buffer); - if (ret) - return ret; - *val <<= i * 8; - *val += buffer; - } - - if (!unlock_global_acpi_lock()) - return -EBUSY; - - return 0; -} - -static int write_to_ec(u8 reg, u8 value) -{ - int ret; - - if (!lock_global_acpi_lock()) - return -EBUSY; - - ret = ec_write(reg, value); - - if (!unlock_global_acpi_lock()) - return -EBUSY; - - return ret; -} - -/* Turbo button toggle functions */ -static int tt_toggle_enable(void) -{ - u8 reg; - u8 val; - - switch (board) { - case oxp_mini_amd_a07: - reg = OXP_MINI_TURBO_SWITCH_REG; - val = OXP_MINI_TURBO_TAKE_VAL; - break; - case aok_zoe_a1: - case oxp_fly: - case oxp_mini_amd_pro: - reg = OXP_TURBO_SWITCH_REG; - val = OXP_TURBO_TAKE_VAL; - break; - case oxp_2: - case oxp_x1: - reg = OXP_2_TURBO_SWITCH_REG; - val = OXP_TURBO_TAKE_VAL; - break; - default: - return -EINVAL; - } - return write_to_ec(reg, val); -} - -static int tt_toggle_disable(void) -{ - u8 reg; - u8 val; - - switch (board) { - case oxp_mini_amd_a07: - reg = OXP_MINI_TURBO_SWITCH_REG; - val = OXP_TURBO_RETURN_VAL; - break; - case aok_zoe_a1: - case oxp_fly: - case oxp_mini_amd_pro: - reg = OXP_TURBO_SWITCH_REG; - val = OXP_TURBO_RETURN_VAL; - break; - case oxp_2: - case oxp_x1: - reg = OXP_2_TURBO_SWITCH_REG; - val = OXP_TURBO_RETURN_VAL; - break; - default: - return -EINVAL; - } - return write_to_ec(reg, val); -} - -/* Callbacks for turbo toggle attribute */ -static umode_t tt_toggle_is_visible(struct kobject *kobj, - struct attribute *attr, int n) -{ - switch (board) { - case aok_zoe_a1: - case oxp_2: - case oxp_fly: - case oxp_mini_amd_a07: - case oxp_mini_amd_pro: - case oxp_x1: - return attr->mode; - default: - break; - } - return 0; -} - -static ssize_t tt_toggle_store(struct device *dev, - struct device_attribute *attr, const char *buf, - size_t count) -{ - int rval; - bool value; - - rval = kstrtobool(buf, &value); - if (rval) - return rval; - - if (value) { - rval = tt_toggle_enable(); - } else { - rval = tt_toggle_disable(); - } - if (rval) - return rval; - - return count; -} - -static ssize_t tt_toggle_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - int retval; - u8 reg; - long val; - - switch (board) { - case oxp_mini_amd_a07: - reg = OXP_MINI_TURBO_SWITCH_REG; - break; - case aok_zoe_a1: - case oxp_fly: - case oxp_mini_amd_pro: - reg = OXP_TURBO_SWITCH_REG; - break; - case oxp_2: - case oxp_x1: - reg = OXP_2_TURBO_SWITCH_REG; - break; - default: - return -EINVAL; - } - - retval = read_from_ec(reg, 1, &val); - if (retval) - return retval; - - return sysfs_emit(buf, "%d\n", !!val); -} - -static DEVICE_ATTR_RW(tt_toggle); - -/* PWM enable/disable functions */ -static int oxp_pwm_enable(void) -{ - switch (board) { - case orange_pi_neo: - return write_to_ec(ORANGEPI_SENSOR_PWM_ENABLE_REG, PWM_MODE_MANUAL); - case aok_zoe_a1: - case aya_neo_2: - case aya_neo_air: - case aya_neo_air_plus_mendo: - case aya_neo_air_pro: - case aya_neo_flip: - case aya_neo_geek: - case aya_neo_kun: - case oxp_2: - case oxp_fly: - case oxp_mini_amd: - case oxp_mini_amd_a07: - case oxp_mini_amd_pro: - case oxp_x1: - return write_to_ec(OXP_SENSOR_PWM_ENABLE_REG, PWM_MODE_MANUAL); - default: - return -EINVAL; - } -} - -static int oxp_pwm_disable(void) -{ - switch (board) { - case orange_pi_neo: - return write_to_ec(ORANGEPI_SENSOR_PWM_ENABLE_REG, PWM_MODE_AUTO); - case aok_zoe_a1: - case aya_neo_2: - case aya_neo_air: - case aya_neo_air_1s: - case aya_neo_air_plus_mendo: - case aya_neo_air_pro: - case aya_neo_flip: - case aya_neo_geek: - case aya_neo_kun: - case oxp_2: - case oxp_fly: - case oxp_mini_amd: - case oxp_mini_amd_a07: - case oxp_mini_amd_pro: - case oxp_x1: - return write_to_ec(OXP_SENSOR_PWM_ENABLE_REG, PWM_MODE_AUTO); - default: - return -EINVAL; - } -} - -/* Callbacks for hwmon interface */ -static umode_t oxp_ec_hwmon_is_visible(const void *drvdata, - enum hwmon_sensor_types type, u32 attr, int channel) -{ - switch (type) { - case hwmon_fan: - return 0444; - case hwmon_pwm: - return 0644; - default: - return 0; - } -} - -static int oxp_platform_read(struct device *dev, enum hwmon_sensor_types type, - u32 attr, int channel, long *val) -{ - int ret; - - switch (type) { - case hwmon_fan: - switch (attr) { - case hwmon_fan_input: - switch (board) { - case orange_pi_neo: - return read_from_ec(ORANGEPI_SENSOR_FAN_REG, 2, val); - case oxp_2: - case oxp_x1: - return read_from_ec(OXP_2_SENSOR_FAN_REG, 2, val); - case aok_zoe_a1: - case aya_neo_2: - case aya_neo_air: - case aya_neo_air_1s: - case aya_neo_air_plus_mendo: - case aya_neo_air_pro: - case aya_neo_flip: - case aya_neo_geek: - case aya_neo_kun: - case oxp_fly: - case oxp_mini_amd: - case oxp_mini_amd_a07: - case oxp_mini_amd_pro: - return read_from_ec(OXP_SENSOR_FAN_REG, 2, val); - default: - break; - } - break; - default: - break; - } - break; - case hwmon_pwm: - switch (attr) { - case hwmon_pwm_input: - switch (board) { - case orange_pi_neo: - ret = read_from_ec(ORANGEPI_SENSOR_PWM_REG, 1, val); - if (ret) - return ret; - /* scale from range [1-244] */ - *val = ((*val - 1) * 254 / 243) + 1; - break; - case oxp_2: - case oxp_x1: - ret = read_from_ec(OXP_SENSOR_PWM_REG, 1, val); - if (ret) - return ret; - /* scale from range [0-184] */ - *val = (*val * 255) / 184; - break; - case aya_neo_2: - case aya_neo_air: - case aya_neo_air_1s: - case aya_neo_air_plus_mendo: - case aya_neo_air_pro: - case aya_neo_flip: - case aya_neo_geek: - case aya_neo_kun: - case oxp_mini_amd: - case oxp_mini_amd_a07: - ret = read_from_ec(OXP_SENSOR_PWM_REG, 1, val); - if (ret) - return ret; - /* scale from range [0-100] */ - *val = (*val * 255) / 100; - break; - case aok_zoe_a1: - case oxp_fly: - case oxp_mini_amd_pro: - default: - ret = read_from_ec(OXP_SENSOR_PWM_REG, 1, val); - if (ret) - return ret; - break; - } - return 0; - case hwmon_pwm_enable: - switch (board) { - case orange_pi_neo: - return read_from_ec(ORANGEPI_SENSOR_PWM_ENABLE_REG, 1, val); - case aok_zoe_a1: - case aya_neo_2: - case aya_neo_air: - case aya_neo_air_1s: - case aya_neo_air_plus_mendo: - case aya_neo_air_pro: - case aya_neo_flip: - case aya_neo_geek: - case aya_neo_kun: - case oxp_2: - case oxp_fly: - case oxp_mini_amd: - case oxp_mini_amd_a07: - case oxp_mini_amd_pro: - case oxp_x1: - return read_from_ec(OXP_SENSOR_PWM_ENABLE_REG, 1, val); - default: - break; - } - break; - default: - break; - } - break; - default: - break; - } - return -EOPNOTSUPP; -} - -static int oxp_platform_write(struct device *dev, enum hwmon_sensor_types type, - u32 attr, int channel, long val) -{ - switch (type) { - case hwmon_pwm: - switch (attr) { - case hwmon_pwm_enable: - if (val == 1) - return oxp_pwm_enable(); - else if (val == 0) - return oxp_pwm_disable(); - return -EINVAL; - case hwmon_pwm_input: - if (val < 0 || val > 255) - return -EINVAL; - switch (board) { - case orange_pi_neo: - /* scale to range [1-244] */ - val = ((val - 1) * 243 / 254) + 1; - return write_to_ec(ORANGEPI_SENSOR_PWM_REG, val); - case oxp_2: - case oxp_x1: - /* scale to range [0-184] */ - val = (val * 184) / 255; - return write_to_ec(OXP_SENSOR_PWM_REG, val); - case aya_neo_2: - case aya_neo_air: - case aya_neo_air_1s: - case aya_neo_air_plus_mendo: - case aya_neo_air_pro: - case aya_neo_flip: - case aya_neo_geek: - case aya_neo_kun: - case oxp_mini_amd: - case oxp_mini_amd_a07: - /* scale to range [0-100] */ - val = (val * 100) / 255; - return write_to_ec(OXP_SENSOR_PWM_REG, val); - case aok_zoe_a1: - case oxp_fly: - case oxp_mini_amd_pro: - return write_to_ec(OXP_SENSOR_PWM_REG, val); - default: - break; - } - break; - default: - break; - } - break; - default: - break; - } - return -EOPNOTSUPP; -} - -/* Known sensors in the OXP EC controllers */ -static const struct hwmon_channel_info * const oxp_platform_sensors[] = { - HWMON_CHANNEL_INFO(fan, - HWMON_F_INPUT), - HWMON_CHANNEL_INFO(pwm, - HWMON_PWM_INPUT | HWMON_PWM_ENABLE), - NULL, -}; - -static struct attribute *oxp_ec_attrs[] = { - &dev_attr_tt_toggle.attr, - NULL -}; - -static struct attribute_group oxp_ec_attribute_group = { - .is_visible = tt_toggle_is_visible, - .attrs = oxp_ec_attrs, -}; - -static const struct attribute_group *oxp_ec_groups[] = { - &oxp_ec_attribute_group, - NULL -}; - -static const struct hwmon_ops oxp_ec_hwmon_ops = { - .is_visible = oxp_ec_hwmon_is_visible, - .read = oxp_platform_read, - .write = oxp_platform_write, -}; - -static const struct hwmon_chip_info oxp_ec_chip_info = { - .ops = &oxp_ec_hwmon_ops, - .info = oxp_platform_sensors, -}; - -/* Initialization logic */ -static int oxp_platform_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct device *hwdev; - - hwdev = devm_hwmon_device_register_with_info(dev, "oxpec", NULL, - &oxp_ec_chip_info, NULL); - - return PTR_ERR_OR_ZERO(hwdev); -} - -static struct platform_driver oxp_platform_driver = { - .driver = { - .name = "oxp-platform", - .dev_groups = oxp_ec_groups, - }, - .probe = oxp_platform_probe, -}; - -static struct platform_device *oxp_platform_device; - -static int __init oxp_platform_init(void) -{ - const struct dmi_system_id *dmi_entry; - - dmi_entry = dmi_first_match(dmi_table); - if (!dmi_entry) - return -ENODEV; - - board = (enum oxp_board)(unsigned long)dmi_entry->driver_data; - - /* - * Have to check for AMD processor here because DMI strings are the same - * between Intel and AMD boards on older OneXPlayer devices, the only way - * to tell them apart is the CPU. Old Intel boards have an unsupported EC. - */ - if (board == oxp_mini_amd && boot_cpu_data.x86_vendor != X86_VENDOR_AMD) - return -ENODEV; - - oxp_platform_device = - platform_create_bundle(&oxp_platform_driver, - oxp_platform_probe, NULL, 0, NULL, 0); - - return PTR_ERR_OR_ZERO(oxp_platform_device); -} - -static void __exit oxp_platform_exit(void) -{ - platform_device_unregister(oxp_platform_device); - platform_driver_unregister(&oxp_platform_driver); -} - -MODULE_DEVICE_TABLE(dmi, dmi_table); - -module_init(oxp_platform_init); -module_exit(oxp_platform_exit); - -MODULE_AUTHOR("Joaquín Ignacio Aramendía <samsagax@gmail.com>"); -MODULE_DESCRIPTION("Platform driver that handles EC sensors of OneXPlayer devices"); -MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index f6d352841953..441f984a859d 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -51,7 +51,7 @@ config SENSORS_ADM1275 tristate "Analog Devices ADM1275 and compatibles" help If you say yes here you get hardware monitoring support for Analog - Devices ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1281, + Devices ADM1075, ADM1272, ADM1273, ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, and ADM1294 Hot-Swap Controller and Digital Power Monitors. This driver can also be built as a module. If so, the module will @@ -85,6 +85,15 @@ config SENSORS_BPA_RS600 This driver can also be built as a module. If so, the module will be called bpa-rs600. +config SENSORS_CRPS + tristate "Intel Common Redundant Power Supply" + help + If you say yes here you get hardware monitoring support for the Intel + Common Redundant Power Supply. + + This driver can also be built as a module. If so, the module will + be called crps. + config SENSORS_DELTA_AHE50DC_FAN tristate "Delta AHE-50DC fan control module" help @@ -124,6 +133,15 @@ config SENSORS_DPS920AB This driver can also be built as a module. If so, the module will be called dps920ab. +config SENSORS_INA233 + tristate "Texas Instruments INA233 and compatibles" + help + If you say yes here you get hardware monitoring support for Texas + Instruments INA233. + + This driver can also be built as a module. If so, the module will + be called ina233. + config SENSORS_INSPUR_IPSPS tristate "INSPUR Power System Power Supply" help @@ -200,6 +218,24 @@ config SENSORS_LM25066_REGULATOR If you say yes here you get regulator support for National Semiconductor LM25066, LM5064, and LM5066. +config SENSORS_LT3074 + tristate "Analog Devices LT3074" + help + If you say yes here you get hardware monitoring support for Analog + Devices LT3074. + + This driver can also be built as a module. If so, the module will + be called lt3074. + +config SENSORS_LT3074_REGULATOR + tristate "Regulator support for LT3074" + depends on SENSORS_LT3074 && REGULATOR + help + If you say yes here you get regulator support for Analog Devices + LT3074. The LT3074 is a low voltage, ultralow noise, high PSRR, + dropout linear regulator. The device supplies up to 3A with a + typical dropout voltage of 45mV. + config SENSORS_LT7182S tristate "Analog Devices LT7182S" help @@ -224,9 +260,9 @@ config SENSORS_LTC2978_REGULATOR depends on SENSORS_LTC2978 && REGULATOR help If you say yes here you get regulator support for Linear Technology - LTC3880, LTC3883, LTC3884, LTC3886, LTC3887, LTC3889, LTC7841, - LTC7880, LTM4644, LTM4675, LTM4676, LTM4677, LTM4678, LTM4680, - LTM4686, and LTM4700. + LT7170, LT7171, LTC3880, LTC3883, LTC3884, LTC3886, LTC3887, LTC3889, + LTC7841, LTC7880, LTM4644, LTM4673, LTM4675, LTM4676, LTM4677, + LTM4678, LTM4680, LTM4686, and LTM4700. config SENSORS_LTC3815 tristate "Linear Technologies LTC3815" @@ -251,7 +287,7 @@ config SENSORS_MAX15301 tristate "Maxim MAX15301" help If you say yes here you get hardware monitoring support for Maxim - MAX15301, as well as for Flex BMR461. + MAX15301, MAX15303, as well as for Flex BMR461. This driver can also be built as a module. If so, the module will be called max15301. @@ -510,6 +546,23 @@ config SENSORS_TDA38640_REGULATOR If you say yes here you get regulator support for Infineon TDA38640 as regulator. +config SENSORS_TPS25990 + tristate "TI TPS25990" + help + If you say yes here you get hardware monitoring support for TI + TPS25990. + + This driver can also be built as a module. If so, the module will + be called tps25990. + +config SENSORS_TPS25990_REGULATOR + bool "Regulator support for TPS25990 and compatibles" + depends on SENSORS_TPS25990 && REGULATOR + default SENSORS_TPS25990 + help + If you say yes here you get regulator support for Texas Instruments + TPS25990. + config SENSORS_TPS40422 tristate "TI TPS40422" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index d00bcc758b97..29cd8a3317d2 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -15,6 +15,7 @@ obj-$(CONFIG_SENSORS_DELTA_AHE50DC_FAN) += delta-ahe50dc-fan.o obj-$(CONFIG_SENSORS_FSP_3Y) += fsp-3y.o obj-$(CONFIG_SENSORS_IBM_CFFPS) += ibm-cffps.o obj-$(CONFIG_SENSORS_DPS920AB) += dps920ab.o +obj-$(CONFIG_SENSORS_INA233) += ina233.o obj-$(CONFIG_SENSORS_INSPUR_IPSPS) += inspur-ipsps.o obj-$(CONFIG_SENSORS_IR35221) += ir35221.o obj-$(CONFIG_SENSORS_IR36021) += ir36021.o @@ -22,6 +23,7 @@ obj-$(CONFIG_SENSORS_IR38064) += ir38064.o obj-$(CONFIG_SENSORS_IRPS5401) += irps5401.o obj-$(CONFIG_SENSORS_ISL68137) += isl68137.o obj-$(CONFIG_SENSORS_LM25066) += lm25066.o +obj-$(CONFIG_SENSORS_LT3074) += lt3074.o obj-$(CONFIG_SENSORS_LT7182S) += lt7182s.o obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o obj-$(CONFIG_SENSORS_LTC3815) += ltc3815.o @@ -51,6 +53,7 @@ obj-$(CONFIG_SENSORS_PXE1610) += pxe1610.o obj-$(CONFIG_SENSORS_Q54SJ108A2) += q54sj108a2.o obj-$(CONFIG_SENSORS_STPDDC60) += stpddc60.o obj-$(CONFIG_SENSORS_TDA38640) += tda38640.o +obj-$(CONFIG_SENSORS_TPS25990) += tps25990.o obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o obj-$(CONFIG_SENSORS_TPS546D24) += tps546d24.o @@ -61,3 +64,4 @@ obj-$(CONFIG_SENSORS_XDPE122) += xdpe12284.o obj-$(CONFIG_SENSORS_XDPE152) += xdpe152c4.o obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o obj-$(CONFIG_SENSORS_PIM4328) += pim4328.o +obj-$(CONFIG_SENSORS_CRPS) += crps.o diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c index 127593e10a03..7d175baa5de2 100644 --- a/drivers/hwmon/pmbus/adm1275.c +++ b/drivers/hwmon/pmbus/adm1275.c @@ -18,7 +18,7 @@ #include <linux/log2.h> #include "pmbus.h" -enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1281, adm1293, adm1294 }; +enum chips { adm1075, adm1272, adm1273, adm1275, adm1276, adm1278, adm1281, adm1293, adm1294 }; #define ADM1275_MFR_STATUS_IOUT_WARN2 BIT(0) #define ADM1293_MFR_STATUS_VAUX_UV_WARN BIT(5) @@ -479,6 +479,7 @@ static int adm1275_read_byte_data(struct i2c_client *client, int page, int reg) static const struct i2c_device_id adm1275_id[] = { { "adm1075", adm1075 }, { "adm1272", adm1272 }, + { "adm1273", adm1273 }, { "adm1275", adm1275 }, { "adm1276", adm1276 }, { "adm1278", adm1278 }, @@ -555,9 +556,9 @@ static int adm1275_probe(struct i2c_client *client) "Device mismatch: Configured %s, detected %s\n", client->name, mid->name); - if (mid->driver_data == adm1272 || mid->driver_data == adm1278 || - mid->driver_data == adm1281 || mid->driver_data == adm1293 || - mid->driver_data == adm1294) + if (mid->driver_data == adm1272 || mid->driver_data == adm1273 || + mid->driver_data == adm1278 || mid->driver_data == adm1281 || + mid->driver_data == adm1293 || mid->driver_data == adm1294) config_read_fn = i2c_smbus_read_word_data; else config_read_fn = i2c_smbus_read_byte_data; @@ -630,6 +631,7 @@ static int adm1275_probe(struct i2c_client *client) PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; break; case adm1272: + case adm1273: data->have_vout = true; data->have_pin_max = true; data->have_temp_max = true; diff --git a/drivers/hwmon/pmbus/crps.c b/drivers/hwmon/pmbus/crps.c new file mode 100644 index 000000000000..164b33fed312 --- /dev/null +++ b/drivers/hwmon/pmbus/crps.c @@ -0,0 +1,74 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright 2024 IBM Corp. + */ + +#include <linux/i2c.h> +#include <linux/of.h> +#include <linux/pmbus.h> + +#include "pmbus.h" + +static const struct i2c_device_id crps_id[] = { + { "intel_crps185" }, + {} +}; +MODULE_DEVICE_TABLE(i2c, crps_id); + +static struct pmbus_driver_info crps_info = { + .pages = 1, + /* PSU uses default linear data format. */ + .func[0] = PMBUS_HAVE_PIN | PMBUS_HAVE_IOUT | + PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_IIN | + PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT | + PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | + PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 | + PMBUS_HAVE_STATUS_TEMP | + PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12, +}; + +static int crps_probe(struct i2c_client *client) +{ + int rc; + struct device *dev = &client->dev; + char buf[I2C_SMBUS_BLOCK_MAX + 2] = { 0 }; + + rc = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf); + if (rc < 0) + return dev_err_probe(dev, rc, "Failed to read PMBUS_MFR_MODEL\n"); + + if (rc != 7 || strncmp(buf, "03NK260", 7)) { + buf[rc] = '\0'; + return dev_err_probe(dev, -ENODEV, "Model '%s' not supported\n", buf); + } + + rc = pmbus_do_probe(client, &crps_info); + if (rc) + return dev_err_probe(dev, rc, "Failed to probe\n"); + + return 0; +} + +static const struct of_device_id crps_of_match[] = { + { + .compatible = "intel,crps185", + }, + {} +}; +MODULE_DEVICE_TABLE(of, crps_of_match); + +static struct i2c_driver crps_driver = { + .driver = { + .name = "crps", + .of_match_table = crps_of_match, + }, + .probe = crps_probe, + .id_table = crps_id, +}; + +module_i2c_driver(crps_driver); + +MODULE_AUTHOR("Ninad Palsule"); +MODULE_DESCRIPTION("PMBus driver for Intel Common Redundant power supplies"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/dps920ab.c b/drivers/hwmon/pmbus/dps920ab.c index cc5aac9dfdb3..325111a955e6 100644 --- a/drivers/hwmon/pmbus/dps920ab.c +++ b/drivers/hwmon/pmbus/dps920ab.c @@ -190,12 +190,19 @@ static const struct of_device_id __maybe_unused dps920ab_of_match[] = { MODULE_DEVICE_TABLE(of, dps920ab_of_match); +static const struct i2c_device_id dps920ab_device_id[] = { + { "dps920ab" }, + {} +}; +MODULE_DEVICE_TABLE(i2c, dps920ab_device_id); + static struct i2c_driver dps920ab_driver = { .driver = { .name = "dps920ab", .of_match_table = of_match_ptr(dps920ab_of_match), }, .probe = dps920ab_probe, + .id_table = dps920ab_device_id, }; module_i2c_driver(dps920ab_driver); diff --git a/drivers/hwmon/pmbus/ina233.c b/drivers/hwmon/pmbus/ina233.c new file mode 100644 index 000000000000..dde1e1678394 --- /dev/null +++ b/drivers/hwmon/pmbus/ina233.c @@ -0,0 +1,191 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Hardware monitoring driver for ina233 + * + * Copyright (c) 2025 Leo Yang + */ + +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include "pmbus.h" + +#define MFR_READ_VSHUNT 0xd1 +#define MFR_CALIBRATION 0xd4 + +#define INA233_MAX_CURRENT_DEFAULT 32768000 /* uA */ +#define INA233_RSHUNT_DEFAULT 2000 /* uOhm */ + +#define MAX_M_VAL 32767 + +static void calculate_coef(int *m, int *R, u32 current_lsb, int power_coef) +{ + u64 scaled_m; + int scale_factor = 0; + int scale_coef = 1; + + /* + * 1000000 from Current_LSB A->uA . + * scale_coef is for scaling up to minimize rounding errors, + * If there is no decimal information, no need to scale. + */ + if (1000000 % current_lsb) { + /* Scaling to keep integer precision */ + scale_factor = -3; + scale_coef = 1000; + } + + /* + * Unit Conversion (Current_LSB A->uA) and use scaling(scale_factor) + * to keep integer precision. + * Formulae referenced from spec. + */ + scaled_m = div64_u64(1000000 * scale_coef, (u64)current_lsb * power_coef); + + /* Maximize while keeping it bounded.*/ + while (scaled_m > MAX_M_VAL) { + scaled_m = div_u64(scaled_m, 10); + scale_factor++; + } + /* Scale up only if fractional part exists. */ + while (scaled_m * 10 < MAX_M_VAL && scale_coef != 1) { + scaled_m *= 10; + scale_factor--; + } + + *m = scaled_m; + *R = scale_factor; +} + +static int ina233_read_word_data(struct i2c_client *client, int page, + int phase, int reg) +{ + int ret; + + switch (reg) { + case PMBUS_VIRT_READ_VMON: + ret = pmbus_read_word_data(client, 0, 0xff, MFR_READ_VSHUNT); + + /* Adjust returned value to match VIN coefficients */ + /* VIN: 1.25 mV VSHUNT: 2.5 uV LSB */ + ret = DIV_ROUND_CLOSEST(ret * 25, 12500); + break; + default: + ret = -ENODATA; + break; + } + return ret; +} + +static int ina233_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + int ret, m, R; + u32 rshunt; + u32 max_current; + u32 current_lsb; + u16 calibration; + struct pmbus_driver_info *info; + + info = devm_kzalloc(dev, sizeof(struct pmbus_driver_info), + GFP_KERNEL); + if (!info) + return -ENOMEM; + + info->pages = 1; + info->format[PSC_VOLTAGE_IN] = direct; + info->format[PSC_VOLTAGE_OUT] = direct; + info->format[PSC_CURRENT_OUT] = direct; + info->format[PSC_POWER] = direct; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT + | PMBUS_HAVE_POUT + | PMBUS_HAVE_VMON | PMBUS_HAVE_STATUS_VMON; + info->m[PSC_VOLTAGE_IN] = 8; + info->R[PSC_VOLTAGE_IN] = 2; + info->m[PSC_VOLTAGE_OUT] = 8; + info->R[PSC_VOLTAGE_OUT] = 2; + info->read_word_data = ina233_read_word_data; + + /* If INA233 skips current/power, shunt-resistor and current-lsb aren't needed. */ + /* read rshunt value (uOhm) */ + ret = device_property_read_u32(dev, "shunt-resistor", &rshunt); + if (ret) { + if (ret != -EINVAL) + return dev_err_probe(dev, ret, "Shunt resistor property read fail.\n"); + rshunt = INA233_RSHUNT_DEFAULT; + } + if (!rshunt) + return dev_err_probe(dev, -EINVAL, + "Shunt resistor cannot be zero.\n"); + + /* read Maximum expected current value (uA) */ + ret = device_property_read_u32(dev, "ti,maximum-expected-current-microamp", &max_current); + if (ret) { + if (ret != -EINVAL) + return dev_err_probe(dev, ret, + "Maximum expected current property read fail.\n"); + max_current = INA233_MAX_CURRENT_DEFAULT; + } + if (max_current < 32768) + return dev_err_probe(dev, -EINVAL, + "Maximum expected current cannot less then 32768.\n"); + + /* Calculate Current_LSB according to the spec formula */ + current_lsb = max_current / 32768; + + /* calculate current coefficient */ + calculate_coef(&m, &R, current_lsb, 1); + info->m[PSC_CURRENT_OUT] = m; + info->R[PSC_CURRENT_OUT] = R; + + /* calculate power coefficient */ + calculate_coef(&m, &R, current_lsb, 25); + info->m[PSC_POWER] = m; + info->R[PSC_POWER] = R; + + /* write MFR_CALIBRATION register, Apply formula from spec with unit scaling. */ + calibration = div64_u64(5120000000ULL, (u64)rshunt * current_lsb); + if (calibration > 0x7FFF) + return dev_err_probe(dev, -EINVAL, + "Product of Current_LSB %u and shunt resistor %u too small, MFR_CALIBRATION reg exceeds 0x7FFF.\n", + current_lsb, rshunt); + ret = i2c_smbus_write_word_data(client, MFR_CALIBRATION, calibration); + if (ret < 0) + return dev_err_probe(dev, ret, "Unable to write calibration.\n"); + + dev_dbg(dev, "power monitor %s (Rshunt = %u uOhm, Current_LSB = %u uA/bit)\n", + client->name, rshunt, current_lsb); + + return pmbus_do_probe(client, info); +} + +static const struct i2c_device_id ina233_id[] = { + {"ina233", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, ina233_id); + +static const struct of_device_id __maybe_unused ina233_of_match[] = { + { .compatible = "ti,ina233" }, + {} +}; +MODULE_DEVICE_TABLE(of, ina233_of_match); + +static struct i2c_driver ina233_driver = { + .driver = { + .name = "ina233", + .of_match_table = of_match_ptr(ina233_of_match), + }, + .probe = ina233_probe, + .id_table = ina233_id, +}; + +module_i2c_driver(ina233_driver); + +MODULE_AUTHOR("Leo Yang <leo.yang.sy0@gmail.com>"); +MODULE_DESCRIPTION("PMBus driver for INA233 and compatible chips"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c index 40b0dda32ea6..dd7275a67a0a 100644 --- a/drivers/hwmon/pmbus/lm25066.c +++ b/drivers/hwmon/pmbus/lm25066.c @@ -437,7 +437,7 @@ static int lm25066_write_word_data(struct i2c_client *client, int page, int reg, #if IS_ENABLED(CONFIG_SENSORS_LM25066_REGULATOR) static const struct regulator_desc lm25066_reg_desc[] = { - PMBUS_REGULATOR_ONE("vout"), + PMBUS_REGULATOR_ONE_NODE("vout"), }; #endif diff --git a/drivers/hwmon/pmbus/lt3074.c b/drivers/hwmon/pmbus/lt3074.c new file mode 100644 index 000000000000..3704dbe7b54a --- /dev/null +++ b/drivers/hwmon/pmbus/lt3074.c @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Hardware monitoring driver for Analog Devices LT3074 + * + * Copyright (C) 2025 Analog Devices, Inc. + */ +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> + +#include "pmbus.h" + +#define LT3074_MFR_READ_VBIAS 0xc6 +#define LT3074_MFR_BIAS_OV_WARN_LIMIT 0xc7 +#define LT3074_MFR_BIAS_UV_WARN_LIMIT 0xc8 +#define LT3074_MFR_SPECIAL_ID 0xe7 + +#define LT3074_SPECIAL_ID_VALUE 0x1c1d + +static const struct regulator_desc __maybe_unused lt3074_reg_desc[] = { + PMBUS_REGULATOR_ONE("regulator"), +}; + +static int lt3074_read_word_data(struct i2c_client *client, int page, + int phase, int reg) +{ + switch (reg) { + case PMBUS_VIRT_READ_VMON: + return pmbus_read_word_data(client, page, phase, + LT3074_MFR_READ_VBIAS); + case PMBUS_VIRT_VMON_UV_WARN_LIMIT: + return pmbus_read_word_data(client, page, phase, + LT3074_MFR_BIAS_UV_WARN_LIMIT); + case PMBUS_VIRT_VMON_OV_WARN_LIMIT: + return pmbus_read_word_data(client, page, phase, + LT3074_MFR_BIAS_OV_WARN_LIMIT); + default: + return -ENODATA; + } +} + +static int lt3074_write_word_data(struct i2c_client *client, int page, + int reg, u16 word) +{ + switch (reg) { + case PMBUS_VIRT_VMON_UV_WARN_LIMIT: + return pmbus_write_word_data(client, 0, + LT3074_MFR_BIAS_UV_WARN_LIMIT, + word); + case PMBUS_VIRT_VMON_OV_WARN_LIMIT: + return pmbus_write_word_data(client, 0, + LT3074_MFR_BIAS_OV_WARN_LIMIT, + word); + default: + return -ENODATA; + } +} + +static struct pmbus_driver_info lt3074_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = linear, + .format[PSC_VOLTAGE_OUT] = linear, + .format[PSC_CURRENT_OUT] = linear, + .format[PSC_TEMPERATURE] = linear, + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT | + PMBUS_HAVE_TEMP | PMBUS_HAVE_VMON | + PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT | + PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP, + .read_word_data = lt3074_read_word_data, + .write_word_data = lt3074_write_word_data, +#if IS_ENABLED(CONFIG_SENSORS_LT3074_REGULATOR) + .num_regulators = 1, + .reg_desc = lt3074_reg_desc, +#endif +}; + +static int lt3074_probe(struct i2c_client *client) +{ + int ret; + struct device *dev = &client->dev; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_READ_WORD_DATA)) + return -ENODEV; + + ret = i2c_smbus_read_word_data(client, LT3074_MFR_SPECIAL_ID); + if (ret < 0) + return dev_err_probe(dev, ret, "Failed to read ID\n"); + + if (ret != LT3074_SPECIAL_ID_VALUE) + return dev_err_probe(dev, -ENODEV, "ID mismatch\n"); + + return pmbus_do_probe(client, <3074_info); +} + +static const struct i2c_device_id lt3074_id[] = { + { "lt3074", 0 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, lt3074_id); + +static const struct of_device_id __maybe_unused lt3074_of_match[] = { + { .compatible = "adi,lt3074" }, + {} +}; +MODULE_DEVICE_TABLE(of, lt3074_of_match); + +static struct i2c_driver lt3074_driver = { + .driver = { + .name = "lt3074", + .of_match_table = of_match_ptr(lt3074_of_match), + }, + .probe = lt3074_probe, + .id_table = lt3074_id, +}; +module_i2c_driver(lt3074_driver); + +MODULE_AUTHOR("Cedric Encarnacion <cedricjustine.encarnacion@analog.com>"); +MODULE_DESCRIPTION("PMBus driver for Analog Devices LT3074"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c index 4c306943383a..8f5be520a15d 100644 --- a/drivers/hwmon/pmbus/ltc2978.c +++ b/drivers/hwmon/pmbus/ltc2978.c @@ -23,11 +23,11 @@ enum chips { /* Managers */ ltc2972, ltc2974, ltc2975, ltc2977, ltc2978, ltc2979, ltc2980, /* Controllers */ - ltc3880, ltc3882, ltc3883, ltc3884, ltc3886, ltc3887, ltc3889, ltc7132, - ltc7841, ltc7880, + lt7170, lt7171, ltc3880, ltc3882, ltc3883, ltc3884, ltc3886, ltc3887, + ltc3889, ltc7132, ltc7841, ltc7880, /* Modules */ - ltm2987, ltm4664, ltm4675, ltm4676, ltm4677, ltm4678, ltm4680, ltm4686, - ltm4700, + ltm2987, ltm4664, ltm4673, ltm4675, ltm4676, ltm4677, ltm4678, ltm4680, + ltm4686, ltm4700, }; /* Common for all chips */ @@ -62,6 +62,7 @@ enum chips { #define LTC2978_ID_MASK 0xfff0 +#define LT7170_ID 0x1C10 #define LTC2972_ID 0x0310 #define LTC2974_ID 0x0210 #define LTC2975_ID 0x0220 @@ -86,6 +87,8 @@ enum chips { #define LTM2987_ID_A 0x8010 /* A/B for two die IDs */ #define LTM2987_ID_B 0x8020 #define LTM4664_ID 0x4120 +#define LTM4673_ID_REV1 0x0230 +#define LTM4673_ID 0x4480 #define LTM4675_ID 0x47a0 #define LTM4676_ID_REV1 0x4400 #define LTM4676_ID_REV2 0x4480 @@ -535,6 +538,8 @@ static int ltc2978_write_word_data(struct i2c_client *client, int page, } static const struct i2c_device_id ltc2978_id[] = { + {"lt7170", lt7170}, + {"lt7171", lt7171}, {"ltc2972", ltc2972}, {"ltc2974", ltc2974}, {"ltc2975", ltc2975}, @@ -554,6 +559,7 @@ static const struct i2c_device_id ltc2978_id[] = { {"ltc7880", ltc7880}, {"ltm2987", ltm2987}, {"ltm4664", ltm4664}, + {"ltm4673", ltm4673}, {"ltm4675", ltm4675}, {"ltm4676", ltm4676}, {"ltm4677", ltm4677}, @@ -612,7 +618,7 @@ static int ltc2978_get_id(struct i2c_client *client) ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, buf); if (ret < 0) return ret; - if (ret < 3 || strncmp(buf, "LTC", 3)) + if (ret < 3 || (strncmp(buf, "LTC", 3) && strncmp(buf, "ADI", 3))) return -ENODEV; ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf); @@ -627,6 +633,25 @@ static int ltc2978_get_id(struct i2c_client *client) chip_id &= LTC2978_ID_MASK; + if (chip_id == LT7170_ID) { + u8 buf[I2C_SMBUS_BLOCK_MAX]; + int ret; + + ret = i2c_smbus_read_i2c_block_data(client, PMBUS_IC_DEVICE_ID, + sizeof(buf), buf); + if (ret < 0) + return ret; + + if (!strncmp(buf + 1, "LT7170", 6) || + !strncmp(buf + 1, "LT7170-1", 8)) + return lt7170; + if (!strncmp(buf + 1, "LT7171", 6) || + !strncmp(buf + 1, "LT7171-1", 8)) + return lt7171; + + return -ENODEV; + } + if (chip_id == LTC2972_ID) return ltc2972; else if (chip_id == LTC2974_ID) @@ -665,6 +690,8 @@ static int ltc2978_get_id(struct i2c_client *client) return ltm2987; else if (chip_id == LTM4664_ID) return ltm4664; + else if (chip_id == LTM4673_ID || chip_id == LTM4673_ID_REV1) + return ltm4673; else if (chip_id == LTM4675_ID) return ltm4675; else if (chip_id == LTM4676_ID_REV1 || chip_id == LTM4676_ID_REV2 || @@ -736,6 +763,20 @@ static int ltc2978_probe(struct i2c_client *client) data->temp2_max = 0x7c00; switch (data->id) { + case lt7170: + case lt7171: + data->features |= FEAT_CLEAR_PEAKS | FEAT_NEEDS_POLLING; + info->read_word_data = ltc3883_read_word_data; + info->pages = LTC3883_NUM_PAGES; + info->format[PSC_VOLTAGE_IN] = ieee754; + info->format[PSC_VOLTAGE_OUT] = ieee754; + info->format[PSC_CURRENT_OUT] = ieee754; + info->format[PSC_TEMPERATURE] = ieee754; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; + break; case ltc2972: info->read_word_data = ltc2975_read_word_data; info->pages = LTC2972_NUM_PAGES; @@ -869,6 +910,21 @@ static int ltc2978_probe(struct i2c_client *client) | PMBUS_HAVE_IOUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; break; + case ltm4673: + data->features |= FEAT_NEEDS_POLLING; + info->read_word_data = ltc2975_read_word_data; + info->pages = LTC2974_NUM_PAGES; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_TEMP2; + for (i = 0; i < info->pages; i++) { + info->func[i] |= PMBUS_HAVE_IIN + | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT + | PMBUS_HAVE_PIN + | PMBUS_HAVE_POUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; + } + break; default: return -ENODEV; } @@ -907,6 +963,8 @@ static int ltc2978_probe(struct i2c_client *client) #ifdef CONFIG_OF static const struct of_device_id ltc2978_of_match[] = { + { .compatible = "lltc,lt7170" }, + { .compatible = "lltc,lt7171" }, { .compatible = "lltc,ltc2972" }, { .compatible = "lltc,ltc2974" }, { .compatible = "lltc,ltc2975" }, @@ -926,6 +984,7 @@ static const struct of_device_id ltc2978_of_match[] = { { .compatible = "lltc,ltc7880" }, { .compatible = "lltc,ltm2987" }, { .compatible = "lltc,ltm4664" }, + { .compatible = "lltc,ltm4673" }, { .compatible = "lltc,ltm4675" }, { .compatible = "lltc,ltm4676" }, { .compatible = "lltc,ltm4677" }, diff --git a/drivers/hwmon/pmbus/max15301.c b/drivers/hwmon/pmbus/max15301.c index 50dfd477772f..d5810b88ea8d 100644 --- a/drivers/hwmon/pmbus/max15301.c +++ b/drivers/hwmon/pmbus/max15301.c @@ -25,6 +25,7 @@ static const struct i2c_device_id max15301_id[] = { { "bmr461" }, { "max15301" }, + { "max15303" }, {} }; MODULE_DEVICE_TABLE(i2c, max15301_id); diff --git a/drivers/hwmon/pmbus/max34440.c b/drivers/hwmon/pmbus/max34440.c index c9dda33831ff..56834d26f8ef 100644 --- a/drivers/hwmon/pmbus/max34440.c +++ b/drivers/hwmon/pmbus/max34440.c @@ -12,9 +12,26 @@ #include <linux/init.h> #include <linux/err.h> #include <linux/i2c.h> +#include <linux/delay.h> #include "pmbus.h" -enum chips { max34440, max34441, max34446, max34451, max34460, max34461 }; +enum chips { + adpm12160, + max34440, + max34441, + max34446, + max34451, + max34460, + max34461, +}; + +/* + * Firmware is sometimes not ready if we try and read the + * data from the page immediately after setting. Maxim + * recommends 50us delay due to the chip failing to clock + * stretch long enough here. + */ +#define MAX34440_PAGE_CHANGE_DELAY 50 #define MAX34440_MFR_VOUT_PEAK 0xd4 #define MAX34440_MFR_IOUT_PEAK 0xd5 @@ -34,16 +51,21 @@ enum chips { max34440, max34441, max34446, max34451, max34460, max34461 }; /* * The whole max344* family have IOUT_OC_WARN_LIMIT and IOUT_OC_FAULT_LIMIT * swapped from the standard pmbus spec addresses. + * For max34451, version MAX34451ETNA6+ and later has this issue fixed. */ #define MAX34440_IOUT_OC_WARN_LIMIT 0x46 #define MAX34440_IOUT_OC_FAULT_LIMIT 0x4A +#define MAX34451ETNA6_MFR_REV 0x0012 + #define MAX34451_MFR_CHANNEL_CONFIG 0xe4 #define MAX34451_MFR_CHANNEL_CONFIG_SEL_MASK 0x3f struct max34440_data { int id; struct pmbus_driver_info info; + u8 iout_oc_warn_limit; + u8 iout_oc_fault_limit; }; #define to_max34440_data(x) container_of(x, struct max34440_data, info) @@ -60,11 +82,11 @@ static int max34440_read_word_data(struct i2c_client *client, int page, switch (reg) { case PMBUS_IOUT_OC_FAULT_LIMIT: ret = pmbus_read_word_data(client, page, phase, - MAX34440_IOUT_OC_FAULT_LIMIT); + data->iout_oc_fault_limit); break; case PMBUS_IOUT_OC_WARN_LIMIT: ret = pmbus_read_word_data(client, page, phase, - MAX34440_IOUT_OC_WARN_LIMIT); + data->iout_oc_warn_limit); break; case PMBUS_VIRT_READ_VOUT_MIN: ret = pmbus_read_word_data(client, page, phase, @@ -75,7 +97,8 @@ static int max34440_read_word_data(struct i2c_client *client, int page, MAX34440_MFR_VOUT_PEAK); break; case PMBUS_VIRT_READ_IOUT_AVG: - if (data->id != max34446 && data->id != max34451) + if (data->id != max34446 && data->id != max34451 && + data->id != adpm12160) return -ENXIO; ret = pmbus_read_word_data(client, page, phase, MAX34446_MFR_IOUT_AVG); @@ -133,11 +156,11 @@ static int max34440_write_word_data(struct i2c_client *client, int page, switch (reg) { case PMBUS_IOUT_OC_FAULT_LIMIT: - ret = pmbus_write_word_data(client, page, MAX34440_IOUT_OC_FAULT_LIMIT, + ret = pmbus_write_word_data(client, page, data->iout_oc_fault_limit, word); break; case PMBUS_IOUT_OC_WARN_LIMIT: - ret = pmbus_write_word_data(client, page, MAX34440_IOUT_OC_WARN_LIMIT, + ret = pmbus_write_word_data(client, page, data->iout_oc_warn_limit, word); break; case PMBUS_VIRT_RESET_POUT_HISTORY: @@ -159,7 +182,8 @@ static int max34440_write_word_data(struct i2c_client *client, int page, case PMBUS_VIRT_RESET_IOUT_HISTORY: ret = pmbus_write_word_data(client, page, MAX34440_MFR_IOUT_PEAK, 0); - if (!ret && (data->id == max34446 || data->id == max34451)) + if (!ret && (data->id == max34446 || data->id == max34451 || + data->id == adpm12160)) ret = pmbus_write_word_data(client, page, MAX34446_MFR_IOUT_AVG, 0); @@ -235,9 +259,29 @@ static int max34451_set_supported_funcs(struct i2c_client *client, */ int page, rv; + bool max34451_na6 = false; + + rv = i2c_smbus_read_word_data(client, PMBUS_MFR_REVISION); + if (rv < 0) + return rv; + + if (rv >= MAX34451ETNA6_MFR_REV) { + max34451_na6 = true; + data->info.format[PSC_VOLTAGE_IN] = direct; + data->info.format[PSC_CURRENT_IN] = direct; + data->info.m[PSC_VOLTAGE_IN] = 1; + data->info.b[PSC_VOLTAGE_IN] = 0; + data->info.R[PSC_VOLTAGE_IN] = 3; + data->info.m[PSC_CURRENT_IN] = 1; + data->info.b[PSC_CURRENT_IN] = 0; + data->info.R[PSC_CURRENT_IN] = 2; + data->iout_oc_fault_limit = PMBUS_IOUT_OC_FAULT_LIMIT; + data->iout_oc_warn_limit = PMBUS_IOUT_OC_WARN_LIMIT; + } for (page = 0; page < 16; page++) { rv = i2c_smbus_write_byte_data(client, PMBUS_PAGE, page); + fsleep(MAX34440_PAGE_CHANGE_DELAY); if (rv < 0) return rv; @@ -251,16 +295,30 @@ static int max34451_set_supported_funcs(struct i2c_client *client, case 0x20: data->info.func[page] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; + + if (max34451_na6) + data->info.func[page] |= PMBUS_HAVE_VIN | + PMBUS_HAVE_STATUS_INPUT; break; case 0x21: data->info.func[page] = PMBUS_HAVE_VOUT; + + if (max34451_na6) + data->info.func[page] |= PMBUS_HAVE_VIN; break; case 0x22: data->info.func[page] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT; + + if (max34451_na6) + data->info.func[page] |= PMBUS_HAVE_IIN | + PMBUS_HAVE_STATUS_INPUT; break; case 0x23: data->info.func[page] = PMBUS_HAVE_IOUT; + + if (max34451_na6) + data->info.func[page] |= PMBUS_HAVE_IIN; break; default: break; @@ -271,6 +329,41 @@ static int max34451_set_supported_funcs(struct i2c_client *client, } static struct pmbus_driver_info max34440_info[] = { + [adpm12160] = { + .pages = 19, + .format[PSC_VOLTAGE_IN] = direct, + .format[PSC_VOLTAGE_OUT] = direct, + .format[PSC_CURRENT_IN] = direct, + .format[PSC_CURRENT_OUT] = direct, + .format[PSC_TEMPERATURE] = direct, + .m[PSC_VOLTAGE_IN] = 1, + .b[PSC_VOLTAGE_IN] = 0, + .R[PSC_VOLTAGE_IN] = 0, + .m[PSC_VOLTAGE_OUT] = 1, + .b[PSC_VOLTAGE_OUT] = 0, + .R[PSC_VOLTAGE_OUT] = 0, + .m[PSC_CURRENT_IN] = 1, + .b[PSC_CURRENT_IN] = 0, + .R[PSC_CURRENT_IN] = 2, + .m[PSC_CURRENT_OUT] = 1, + .b[PSC_CURRENT_OUT] = 0, + .R[PSC_CURRENT_OUT] = 2, + .m[PSC_TEMPERATURE] = 1, + .b[PSC_TEMPERATURE] = 0, + .R[PSC_TEMPERATURE] = 2, + /* absent func below [18] are not for monitoring */ + .func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT, + .func[4] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, + .func[5] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, + .func[6] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, + .func[7] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, + .func[8] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, + .func[9] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT, + .func[10] = PMBUS_HAVE_IIN | PMBUS_HAVE_STATUS_INPUT, + .func[18] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, + .read_word_data = max34440_read_word_data, + .write_word_data = max34440_write_word_data, + }, [max34440] = { .pages = 14, .format[PSC_VOLTAGE_IN] = direct, @@ -312,6 +405,7 @@ static struct pmbus_driver_info max34440_info[] = { .read_byte_data = max34440_read_byte_data, .read_word_data = max34440_read_word_data, .write_word_data = max34440_write_word_data, + .page_change_delay = MAX34440_PAGE_CHANGE_DELAY, }, [max34441] = { .pages = 12, @@ -355,6 +449,7 @@ static struct pmbus_driver_info max34440_info[] = { .read_byte_data = max34440_read_byte_data, .read_word_data = max34440_read_word_data, .write_word_data = max34440_write_word_data, + .page_change_delay = MAX34440_PAGE_CHANGE_DELAY, }, [max34446] = { .pages = 7, @@ -392,6 +487,7 @@ static struct pmbus_driver_info max34440_info[] = { .read_byte_data = max34440_read_byte_data, .read_word_data = max34440_read_word_data, .write_word_data = max34440_write_word_data, + .page_change_delay = MAX34440_PAGE_CHANGE_DELAY, }, [max34451] = { .pages = 21, @@ -415,6 +511,7 @@ static struct pmbus_driver_info max34440_info[] = { .func[20] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, .read_word_data = max34440_read_word_data, .write_word_data = max34440_write_word_data, + .page_change_delay = MAX34440_PAGE_CHANGE_DELAY, }, [max34460] = { .pages = 18, @@ -445,6 +542,7 @@ static struct pmbus_driver_info max34440_info[] = { .func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, .read_word_data = max34440_read_word_data, .write_word_data = max34440_write_word_data, + .page_change_delay = MAX34440_PAGE_CHANGE_DELAY, }, [max34461] = { .pages = 23, @@ -480,6 +578,7 @@ static struct pmbus_driver_info max34440_info[] = { .func[21] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, .read_word_data = max34440_read_word_data, .write_word_data = max34440_write_word_data, + .page_change_delay = MAX34440_PAGE_CHANGE_DELAY, }, }; @@ -494,17 +593,23 @@ static int max34440_probe(struct i2c_client *client) return -ENOMEM; data->id = i2c_match_id(max34440_id, client)->driver_data; data->info = max34440_info[data->id]; + data->iout_oc_fault_limit = MAX34440_IOUT_OC_FAULT_LIMIT; + data->iout_oc_warn_limit = MAX34440_IOUT_OC_WARN_LIMIT; if (data->id == max34451) { rv = max34451_set_supported_funcs(client, data); if (rv) return rv; + } else if (data->id == adpm12160) { + data->iout_oc_fault_limit = PMBUS_IOUT_OC_FAULT_LIMIT; + data->iout_oc_warn_limit = PMBUS_IOUT_OC_WARN_LIMIT; } return pmbus_do_probe(client, &data->info); } static const struct i2c_device_id max34440_id[] = { + {"adpm12160", adpm12160}, {"max34440", max34440}, {"max34441", max34441}, {"max34446", max34446}, diff --git a/drivers/hwmon/pmbus/mpq7932.c b/drivers/hwmon/pmbus/mpq7932.c index c1e2d0cb2fd0..8f10e37a7a76 100644 --- a/drivers/hwmon/pmbus/mpq7932.c +++ b/drivers/hwmon/pmbus/mpq7932.c @@ -51,8 +51,8 @@ static const struct regulator_desc mpq7932_regulators_desc[] = { }; static const struct regulator_desc mpq7932_regulators_desc_one[] = { - PMBUS_REGULATOR_STEP_ONE("buck", MPQ7932_N_VOLTAGES, - MPQ7932_UV_STEP, MPQ7932_BUCK_UV_MIN), + PMBUS_REGULATOR_STEP_ONE_NODE("buck", MPQ7932_N_VOLTAGES, + MPQ7932_UV_STEP, MPQ7932_BUCK_UV_MIN), }; #endif diff --git a/drivers/hwmon/pmbus/mpq8785.c b/drivers/hwmon/pmbus/mpq8785.c index 331c274ca892..1f56aaf4dde8 100644 --- a/drivers/hwmon/pmbus/mpq8785.c +++ b/drivers/hwmon/pmbus/mpq8785.c @@ -4,10 +4,23 @@ */ #include <linux/i2c.h> +#include <linux/bitops.h> #include <linux/module.h> +#include <linux/property.h> #include <linux/of_device.h> #include "pmbus.h" +#define MPM82504_READ_TEMPERATURE_1_SIGN_POS 9 + +enum chips { mpm3695, mpm3695_25, mpm82504, mpq8785 }; + +static u16 voltage_scale_loop_max_val[] = { + [mpm3695] = GENMASK(9, 0), + [mpm3695_25] = GENMASK(11, 0), + [mpm82504] = GENMASK(9, 0), + [mpq8785] = GENMASK(10, 0), +}; + static int mpq8785_identify(struct i2c_client *client, struct pmbus_driver_info *info) { @@ -34,6 +47,20 @@ static int mpq8785_identify(struct i2c_client *client, return 0; }; +static int mpm82504_read_word_data(struct i2c_client *client, int page, + int phase, int reg) +{ + int ret; + + ret = pmbus_read_word_data(client, page, phase, reg); + + if (ret < 0 || reg != PMBUS_READ_TEMPERATURE_1) + return ret; + + /* Fix PMBUS_READ_TEMPERATURE_1 signedness */ + return sign_extend32(ret, MPM82504_READ_TEMPERATURE_1_SIGN_POS) & 0xffff; +} + static struct pmbus_driver_info mpq8785_info = { .pages = 1, .format[PSC_VOLTAGE_IN] = direct, @@ -53,26 +80,74 @@ static struct pmbus_driver_info mpq8785_info = { PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, - .identify = mpq8785_identify, -}; - -static int mpq8785_probe(struct i2c_client *client) -{ - return pmbus_do_probe(client, &mpq8785_info); }; static const struct i2c_device_id mpq8785_id[] = { - { "mpq8785" }, + { "mpm3695", mpm3695 }, + { "mpm3695-25", mpm3695_25 }, + { "mpm82504", mpm82504 }, + { "mpq8785", mpq8785 }, { }, }; MODULE_DEVICE_TABLE(i2c, mpq8785_id); static const struct of_device_id __maybe_unused mpq8785_of_match[] = { - { .compatible = "mps,mpq8785" }, + { .compatible = "mps,mpm3695", .data = (void *)mpm3695 }, + { .compatible = "mps,mpm3695-25", .data = (void *)mpm3695_25 }, + { .compatible = "mps,mpm82504", .data = (void *)mpm82504 }, + { .compatible = "mps,mpq8785", .data = (void *)mpq8785 }, {} }; MODULE_DEVICE_TABLE(of, mpq8785_of_match); +static int mpq8785_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct pmbus_driver_info *info; + enum chips chip_id; + u32 voltage_scale; + int ret; + + info = devm_kmemdup(dev, &mpq8785_info, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + if (dev->of_node) + chip_id = (kernel_ulong_t)of_device_get_match_data(dev); + else + chip_id = (kernel_ulong_t)i2c_get_match_data(client); + + switch (chip_id) { + case mpm3695: + case mpm3695_25: + case mpm82504: + info->format[PSC_VOLTAGE_OUT] = direct; + info->m[PSC_VOLTAGE_OUT] = 8; + info->b[PSC_VOLTAGE_OUT] = 0; + info->R[PSC_VOLTAGE_OUT] = 2; + info->read_word_data = mpm82504_read_word_data; + break; + case mpq8785: + info->identify = mpq8785_identify; + break; + default: + return -ENODEV; + } + + if (!device_property_read_u32(dev, "mps,vout-fb-divider-ratio-permille", + &voltage_scale)) { + if (voltage_scale > voltage_scale_loop_max_val[chip_id]) + return -EINVAL; + + ret = i2c_smbus_write_word_data(client, PMBUS_VOUT_SCALE_LOOP, + voltage_scale); + if (ret) + return ret; + } + + return pmbus_do_probe(client, info); +}; + static struct i2c_driver mpq8785_driver = { .driver = { .name = "mpq8785", diff --git a/drivers/hwmon/pmbus/pmbus.h b/drivers/hwmon/pmbus/pmbus.h index d605412a3173..d2e9bfb5320f 100644 --- a/drivers/hwmon/pmbus/pmbus.h +++ b/drivers/hwmon/pmbus/pmbus.h @@ -482,11 +482,14 @@ struct pmbus_driver_info { */ int access_delay; /* in microseconds */ int write_delay; /* in microseconds */ + int page_change_delay; /* in microseconds */ }; /* Regulator ops */ extern const struct regulator_ops pmbus_regulator_ops; +int pmbus_regulator_init_cb(struct regulator_dev *rdev, + struct regulator_config *config); /* Macros for filling in array of struct regulator_desc */ #define PMBUS_REGULATOR_STEP(_name, _id, _voltages, _step, _min_uV) \ @@ -501,24 +504,38 @@ extern const struct regulator_ops pmbus_regulator_ops; .n_voltages = _voltages, \ .uV_step = _step, \ .min_uV = _min_uV, \ + .init_cb = pmbus_regulator_init_cb, \ } #define PMBUS_REGULATOR(_name, _id) PMBUS_REGULATOR_STEP(_name, _id, 0, 0, 0) -#define PMBUS_REGULATOR_STEP_ONE(_name, _voltages, _step, _min_uV) \ +#define __PMBUS_REGULATOR_STEP_ONE(_name, _node, _voltages, _step, _min_uV) \ { \ .name = (_name), \ .of_match = of_match_ptr(_name), \ - .regulators_node = of_match_ptr("regulators"), \ + .regulators_node = of_match_ptr(_node), \ .ops = &pmbus_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ .n_voltages = _voltages, \ .uV_step = _step, \ .min_uV = _min_uV, \ + .init_cb = pmbus_regulator_init_cb, \ } -#define PMBUS_REGULATOR_ONE(_name) PMBUS_REGULATOR_STEP_ONE(_name, 0, 0, 0) +/* + * _NODE macros are defined for historic reasons and MUST NOT be used in new + * drivers. + */ +#define PMBUS_REGULATOR_STEP_ONE_NODE(_name, _voltages, _step, _min_uV) \ + __PMBUS_REGULATOR_STEP_ONE(_name, "regulators", _voltages, _step, _min_uV) + +#define PMBUS_REGULATOR_ONE_NODE(_name) PMBUS_REGULATOR_STEP_ONE_NODE(_name, 0, 0, 0) + +#define PMBUS_REGULATOR_STEP_ONE(_name, _voltages, _step, _min_uV) \ + __PMBUS_REGULATOR_STEP_ONE(_name, NULL, _voltages, _step, _min_uV) + +#define PMBUS_REGULATOR_ONE(_name) PMBUS_REGULATOR_STEP_ONE(_name, 0, 0, 0) /* Function declarations */ diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index a1375cb6b648..be6d05def115 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -8,6 +8,7 @@ #include <linux/debugfs.h> #include <linux/delay.h> +#include <linux/dcache.h> #include <linux/kernel.h> #include <linux/math64.h> #include <linux/module.h> @@ -31,6 +32,16 @@ #define PMBUS_ATTR_ALLOC_SIZE 32 #define PMBUS_NAME_SIZE 24 +/* + * The type of operation used for picking the delay between + * successive pmbus operations. + */ +#define PMBUS_OP_WRITE BIT(0) +#define PMBUS_OP_PAGE_CHANGE BIT(1) + +static int wp = -1; +module_param(wp, int, 0444); + struct pmbus_sensor { struct pmbus_sensor *next; char name[PMBUS_NAME_SIZE]; /* sysfs sensor name */ @@ -41,8 +52,7 @@ struct pmbus_sensor { enum pmbus_sensor_classes class; /* sensor class */ bool update; /* runtime sensor update needed */ bool convert; /* Whether or not to apply linear/vid/direct */ - int data; /* Sensor data. - Negative if there was a read error */ + int data; /* Sensor data; negative if there was a read error */ }; #define to_pmbus_sensor(_attr) \ container_of(_attr, struct pmbus_sensor, attribute) @@ -97,7 +107,6 @@ struct pmbus_data { int num_attributes; struct attribute_group group; const struct attribute_group **groups; - struct dentry *debugfs; /* debugfs device directory */ struct pmbus_sensor *sensors; @@ -111,8 +120,8 @@ struct pmbus_data { int vout_low[PMBUS_PAGES]; /* voltage low margin */ int vout_high[PMBUS_PAGES]; /* voltage high margin */ - ktime_t write_time; /* Last SMBUS write timestamp */ - ktime_t access_time; /* Last SMBUS access timestamp */ + + ktime_t next_access_backoff; /* Wait until at least this time */ }; struct pmbus_debugfs_entry { @@ -167,33 +176,26 @@ EXPORT_SYMBOL_NS_GPL(pmbus_set_update, "PMBUS"); static void pmbus_wait(struct i2c_client *client) { struct pmbus_data *data = i2c_get_clientdata(client); - const struct pmbus_driver_info *info = data->info; - s64 delta; - - if (info->access_delay) { - delta = ktime_us_delta(ktime_get(), data->access_time); - - if (delta < info->access_delay) - fsleep(info->access_delay - delta); - } else if (info->write_delay) { - delta = ktime_us_delta(ktime_get(), data->write_time); + s64 delay = ktime_us_delta(data->next_access_backoff, ktime_get()); - if (delta < info->write_delay) - fsleep(info->write_delay - delta); - } + if (delay > 0) + fsleep(delay); } -/* Sets the last accessed timestamp for pmbus_wait */ -static void pmbus_update_ts(struct i2c_client *client, bool write_op) +/* Sets the last operation timestamp for pmbus_wait */ +static void pmbus_update_ts(struct i2c_client *client, int op) { struct pmbus_data *data = i2c_get_clientdata(client); const struct pmbus_driver_info *info = data->info; + int delay = info->access_delay; - if (info->access_delay) { - data->access_time = ktime_get(); - } else if (info->write_delay && write_op) { - data->write_time = ktime_get(); - } + if (op & PMBUS_OP_WRITE) + delay = max(delay, info->write_delay); + if (op & PMBUS_OP_PAGE_CHANGE) + delay = max(delay, info->page_change_delay); + + if (delay > 0) + data->next_access_backoff = ktime_add_us(ktime_get(), delay); } int pmbus_set_page(struct i2c_client *client, int page, int phase) @@ -208,13 +210,13 @@ int pmbus_set_page(struct i2c_client *client, int page, int phase) data->info->pages > 1 && page != data->currpage) { pmbus_wait(client); rv = i2c_smbus_write_byte_data(client, PMBUS_PAGE, page); - pmbus_update_ts(client, true); + pmbus_update_ts(client, PMBUS_OP_WRITE | PMBUS_OP_PAGE_CHANGE); if (rv < 0) return rv; pmbus_wait(client); rv = i2c_smbus_read_byte_data(client, PMBUS_PAGE); - pmbus_update_ts(client, false); + pmbus_update_ts(client, 0); if (rv < 0) return rv; @@ -228,7 +230,7 @@ int pmbus_set_page(struct i2c_client *client, int page, int phase) pmbus_wait(client); rv = i2c_smbus_write_byte_data(client, PMBUS_PHASE, phase); - pmbus_update_ts(client, true); + pmbus_update_ts(client, PMBUS_OP_WRITE); if (rv) return rv; } @@ -248,7 +250,7 @@ int pmbus_write_byte(struct i2c_client *client, int page, u8 value) pmbus_wait(client); rv = i2c_smbus_write_byte(client, value); - pmbus_update_ts(client, true); + pmbus_update_ts(client, PMBUS_OP_WRITE); return rv; } @@ -283,13 +285,12 @@ int pmbus_write_word_data(struct i2c_client *client, int page, u8 reg, pmbus_wait(client); rv = i2c_smbus_write_word_data(client, reg, word); - pmbus_update_ts(client, true); + pmbus_update_ts(client, PMBUS_OP_WRITE); return rv; } EXPORT_SYMBOL_NS_GPL(pmbus_write_word_data, "PMBUS"); - static int pmbus_write_virt_reg(struct i2c_client *client, int page, int reg, u16 word) { @@ -378,14 +379,14 @@ int pmbus_update_fan(struct i2c_client *client, int page, int id, u8 to; from = _pmbus_read_byte_data(client, page, - pmbus_fan_config_registers[id]); + pmbus_fan_config_registers[id]); if (from < 0) return from; to = (from & ~mask) | (config & mask); if (to != from) { rv = _pmbus_write_byte_data(client, page, - pmbus_fan_config_registers[id], to); + pmbus_fan_config_registers[id], to); if (rv < 0) return rv; } @@ -405,7 +406,7 @@ int pmbus_read_word_data(struct i2c_client *client, int page, int phase, u8 reg) pmbus_wait(client); rv = i2c_smbus_read_word_data(client, reg); - pmbus_update_ts(client, false); + pmbus_update_ts(client, 0); return rv; } @@ -468,7 +469,7 @@ int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg) pmbus_wait(client); rv = i2c_smbus_read_byte_data(client, reg); - pmbus_update_ts(client, false); + pmbus_update_ts(client, 0); return rv; } @@ -484,7 +485,7 @@ int pmbus_write_byte_data(struct i2c_client *client, int page, u8 reg, u8 value) pmbus_wait(client); rv = i2c_smbus_write_byte_data(client, reg, value); - pmbus_update_ts(client, true); + pmbus_update_ts(client, PMBUS_OP_WRITE); return rv; } @@ -520,7 +521,7 @@ static int pmbus_read_block_data(struct i2c_client *client, int page, u8 reg, pmbus_wait(client); rv = i2c_smbus_read_block_data(client, reg, data_buf); - pmbus_update_ts(client, false); + pmbus_update_ts(client, 0); return rv; } @@ -560,7 +561,7 @@ static int pmbus_get_fan_rate(struct i2c_client *client, int page, int id, } config = _pmbus_read_byte_data(client, page, - pmbus_fan_config_registers[id]); + pmbus_fan_config_registers[id]); if (config < 0) return config; @@ -785,7 +786,7 @@ static s64 pmbus_reg2data_linear(struct pmbus_data *data, if (sensor->class == PSC_VOLTAGE_OUT) { /* LINEAR16 */ exponent = data->exponent[sensor->page]; - mantissa = (u16) sensor->data; + mantissa = (u16)sensor->data; } else { /* LINEAR11 */ exponent = ((s16)sensor->data) >> 11; mantissa = ((s16)((sensor->data & 0x7ff) << 5)) >> 5; @@ -1170,7 +1171,6 @@ static int pmbus_get_boolean(struct i2c_client *client, struct pmbus_boolean *b, } else { pmbus_clear_fault_page(client, page); } - } if (s1 && s2) { s64 v1, v2; @@ -1467,8 +1467,7 @@ static int pmbus_add_label(struct pmbus_data *data, snprintf(label->name, sizeof(label->name), "%s%d_label", name, seq); if (!index) { if (phase == 0xff) - strncpy(label->label, lstring, - sizeof(label->label) - 1); + strscpy(label->label, lstring); else snprintf(label->label, sizeof(label->label), "%s.%d", lstring, phase); @@ -1497,8 +1496,7 @@ struct pmbus_limit_attr { u16 reg; /* Limit register */ u16 sbit; /* Alarm attribute status bit */ bool update; /* True if register needs updates */ - bool low; /* True if low limit; for limits with compare - functions only */ + bool low; /* True if low limit; for limits with compare functions only */ const char *attr; /* Attribute name */ const char *alarm; /* Alarm attribute name */ }; @@ -2209,8 +2207,8 @@ static const u32 pmbus_fan_status_flags[] = { /* Precondition: FAN_CONFIG_x_y and FAN_COMMAND_x must exist for the fan ID */ static int pmbus_add_fan_ctrl(struct i2c_client *client, - struct pmbus_data *data, int index, int page, int id, - u8 config) + struct pmbus_data *data, int index, int page, + int id, u8 config) { struct pmbus_sensor *sensor; @@ -2222,7 +2220,7 @@ static int pmbus_add_fan_ctrl(struct i2c_client *client, return -ENOMEM; if (!((data->info->func[page] & PMBUS_HAVE_PWM12) || - (data->info->func[page] & PMBUS_HAVE_PWM34))) + (data->info->func[page] & PMBUS_HAVE_PWM34))) return 0; sensor = pmbus_add_sensor(data, "pwm", NULL, index, page, @@ -2527,7 +2525,7 @@ static int pmbus_read_coefficients(struct i2c_client *client, rv = i2c_smbus_xfer(client->adapter, client->addr, client->flags, I2C_SMBUS_WRITE, PMBUS_COEFFICIENTS, I2C_SMBUS_BLOCK_PROC_CALL, &data); - pmbus_update_ts(client, true); + pmbus_update_ts(client, PMBUS_OP_WRITE); if (rv < 0) return rv; @@ -2665,6 +2663,56 @@ static void pmbus_remove_pec(void *dev) device_remove_file(dev, &dev_attr_pec); } +static void pmbus_init_wp(struct i2c_client *client, struct pmbus_data *data) +{ + int ret; + + switch (wp) { + case 0: + _pmbus_write_byte_data(client, -1, + PMBUS_WRITE_PROTECT, 0); + break; + + case 1: + _pmbus_write_byte_data(client, -1, + PMBUS_WRITE_PROTECT, PB_WP_VOUT); + break; + + case 2: + _pmbus_write_byte_data(client, -1, + PMBUS_WRITE_PROTECT, PB_WP_OP); + break; + + case 3: + _pmbus_write_byte_data(client, -1, + PMBUS_WRITE_PROTECT, PB_WP_ALL); + break; + + default: + /* Ignore the other values */ + break; + } + + ret = _pmbus_read_byte_data(client, -1, PMBUS_WRITE_PROTECT); + if (ret < 0) + return; + + switch (ret & PB_WP_ANY) { + case PB_WP_ALL: + data->flags |= PMBUS_OP_PROTECTED; + fallthrough; + case PB_WP_OP: + data->flags |= PMBUS_VOUT_PROTECTED; + fallthrough; + case PB_WP_VOUT: + data->flags |= PMBUS_WRITE_PROTECTED | PMBUS_SKIP_STATUS_CHECK; + break; + + default: + break; + } +} + static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data, struct pmbus_driver_info *info) { @@ -2681,7 +2729,7 @@ static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data, if (!(data->flags & PMBUS_NO_CAPABILITY)) { pmbus_wait(client); ret = i2c_smbus_read_byte_data(client, PMBUS_CAPABILITY); - pmbus_update_ts(client, false); + pmbus_update_ts(client, 0); if (ret >= 0 && (ret & PB_CAPABILITY_ERROR_CHECK)) { if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_PEC)) @@ -2697,13 +2745,13 @@ static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data, data->read_status = pmbus_read_status_word; pmbus_wait(client); ret = i2c_smbus_read_word_data(client, PMBUS_STATUS_WORD); - pmbus_update_ts(client, false); + pmbus_update_ts(client, 0); if (ret < 0 || ret == 0xffff) { data->read_status = pmbus_read_status_byte; pmbus_wait(client); ret = i2c_smbus_read_byte_data(client, PMBUS_STATUS_BYTE); - pmbus_update_ts(client, false); + pmbus_update_ts(client, 0); if (ret < 0 || ret == 0xff) { dev_err(dev, "PMBus status register not found\n"); @@ -2718,12 +2766,8 @@ static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data, * faults, and we should not try it. Also, in that case, writes into * limit registers need to be disabled. */ - if (!(data->flags & PMBUS_NO_WRITE_PROTECT)) { - ret = _pmbus_read_byte_data(client, -1, PMBUS_WRITE_PROTECT); - - if (ret > 0 && (ret & PB_WP_ANY)) - data->flags |= PMBUS_WRITE_PROTECTED | PMBUS_SKIP_STATUS_CHECK; - } + if (!(data->flags & PMBUS_NO_WRITE_PROTECT)) + pmbus_init_wp(client, data); ret = i2c_smbus_read_byte_data(client, PMBUS_REVISION); if (ret >= 0) @@ -2886,7 +2930,7 @@ static void pmbus_notify(struct pmbus_data *data, int page, int reg, int flags) } static int _pmbus_get_flags(struct pmbus_data *data, u8 page, unsigned int *flags, - unsigned int *event, bool notify) + unsigned int *event, bool notify) { int i, status; const struct pmbus_status_category *cat; @@ -2915,7 +2959,6 @@ static int _pmbus_get_flags(struct pmbus_data *data, u8 page, unsigned int *flag if (notify && status) pmbus_notify(data, page, cat->reg, status); - } /* @@ -2966,7 +3009,6 @@ static int _pmbus_get_flags(struct pmbus_data *data, u8 page, unsigned int *flag *event |= REGULATOR_EVENT_OVER_TEMP_WARN; } - return 0; } @@ -3179,12 +3221,16 @@ static int pmbus_regulator_set_voltage(struct regulator_dev *rdev, int min_uv, } static int pmbus_regulator_list_voltage(struct regulator_dev *rdev, - unsigned int selector) + unsigned int selector) { struct device *dev = rdev_get_dev(rdev); struct i2c_client *client = to_i2c_client(dev->parent); + struct pmbus_data *data = i2c_get_clientdata(client); int val, low, high; + if (data->flags & PMBUS_VOUT_PROTECTED) + return 0; + if (selector >= rdev->desc->n_voltages || selector < rdev->desc->linear_min_sel) return -EINVAL; @@ -3219,6 +3265,22 @@ const struct regulator_ops pmbus_regulator_ops = { }; EXPORT_SYMBOL_NS_GPL(pmbus_regulator_ops, "PMBUS"); +int pmbus_regulator_init_cb(struct regulator_dev *rdev, + struct regulator_config *config) +{ + struct pmbus_data *data = config->driver_data; + struct regulation_constraints *constraints = rdev->constraints; + + if (data->flags & PMBUS_OP_PROTECTED) + constraints->valid_ops_mask &= ~REGULATOR_CHANGE_STATUS; + + if (data->flags & PMBUS_VOUT_PROTECTED) + constraints->valid_ops_mask &= ~REGULATOR_CHANGE_VOLTAGE; + + return 0; +} +EXPORT_SYMBOL_NS_GPL(pmbus_regulator_init_cb, "PMBUS"); + static int pmbus_regulator_register(struct pmbus_data *data) { struct device *dev = data->dev; @@ -3251,17 +3313,16 @@ static int pmbus_regulator_register(struct pmbus_data *data) return 0; } -static int pmbus_regulator_notify(struct pmbus_data *data, int page, int event) +static void pmbus_regulator_notify(struct pmbus_data *data, int page, int event) { - int j; + int j; - for (j = 0; j < data->info->num_regulators; j++) { - if (page == rdev_get_id(data->rdevs[j])) { - regulator_notifier_call_chain(data->rdevs[j], event, NULL); - break; - } + for (j = 0; j < data->info->num_regulators; j++) { + if (page == rdev_get_id(data->rdevs[j])) { + regulator_notifier_call_chain(data->rdevs[j], event, NULL); + break; } - return 0; + } } #else static int pmbus_regulator_register(struct pmbus_data *data) @@ -3269,9 +3330,8 @@ static int pmbus_regulator_register(struct pmbus_data *data) return 0; } -static int pmbus_regulator_notify(struct pmbus_data *data, int page, int event) +static void pmbus_regulator_notify(struct pmbus_data *data, int page, int event) { - return 0; } #endif @@ -3294,8 +3354,8 @@ static irqreturn_t pmbus_fault_handler(int irq, void *pdata) { struct pmbus_data *data = pdata; struct i2c_client *client = to_i2c_client(data->dev); - int i, status, event; + mutex_lock(&data->update_lock); for (i = 0; i < data->info->pages; i++) { _pmbus_get_flags(data, i, &status, &event, true); @@ -3359,7 +3419,6 @@ static int pmbus_irq_setup(struct i2c_client *client, struct pmbus_data *data) static struct dentry *pmbus_debugfs_dir; /* pmbus debugfs directory */ -#if IS_ENABLED(CONFIG_DEBUG_FS) static int pmbus_debugfs_get(void *data, u64 *val) { int rc; @@ -3402,8 +3461,8 @@ static int pmbus_debugfs_get_status(void *data, u64 *val) DEFINE_DEBUGFS_ATTRIBUTE(pmbus_debugfs_ops_status, pmbus_debugfs_get_status, NULL, "0x%04llx\n"); -static ssize_t pmbus_debugfs_mfr_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos) +static ssize_t pmbus_debugfs_block_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) { int rc; struct pmbus_debugfs_entry *entry = file->private_data; @@ -3428,51 +3487,98 @@ static ssize_t pmbus_debugfs_mfr_read(struct file *file, char __user *buf, return simple_read_from_buffer(buf, count, ppos, data, rc); } -static const struct file_operations pmbus_debugfs_ops_mfr = { +static const struct file_operations pmbus_debugfs_block_ops = { .llseek = noop_llseek, - .read = pmbus_debugfs_mfr_read, + .read = pmbus_debugfs_block_read, .write = NULL, .open = simple_open, }; -static void pmbus_remove_debugfs(void *data) +static void pmbus_remove_symlink(void *symlink) { - struct dentry *entry = data; - - debugfs_remove_recursive(entry); + debugfs_remove(symlink); } -static int pmbus_init_debugfs(struct i2c_client *client, - struct pmbus_data *data) +struct pmbus_debugfs_data { + u8 reg; + u32 flag; + const char *name; +}; + +static const struct pmbus_debugfs_data pmbus_debugfs_block_data[] = { + { .reg = PMBUS_MFR_ID, .name = "mfr_id" }, + { .reg = PMBUS_MFR_MODEL, .name = "mfr_model" }, + { .reg = PMBUS_MFR_REVISION, .name = "mfr_revision" }, + { .reg = PMBUS_MFR_LOCATION, .name = "mfr_location" }, + { .reg = PMBUS_MFR_DATE, .name = "mfr_date" }, + { .reg = PMBUS_MFR_SERIAL, .name = "mfr_serial" }, +}; + +static const struct pmbus_debugfs_data pmbus_debugfs_status_data[] = { + { .reg = PMBUS_STATUS_VOUT, .flag = PMBUS_HAVE_STATUS_VOUT, .name = "status%d_vout" }, + { .reg = PMBUS_STATUS_IOUT, .flag = PMBUS_HAVE_STATUS_IOUT, .name = "status%d_iout" }, + { .reg = PMBUS_STATUS_INPUT, .flag = PMBUS_HAVE_STATUS_INPUT, .name = "status%d_input" }, + { .reg = PMBUS_STATUS_TEMPERATURE, .flag = PMBUS_HAVE_STATUS_TEMP, + .name = "status%d_temp" }, + { .reg = PMBUS_STATUS_FAN_12, .flag = PMBUS_HAVE_STATUS_FAN12, .name = "status%d_fan12" }, + { .reg = PMBUS_STATUS_FAN_34, .flag = PMBUS_HAVE_STATUS_FAN34, .name = "status%d_fan34" }, + { .reg = PMBUS_STATUS_CML, .name = "status%d_cml" }, + { .reg = PMBUS_STATUS_OTHER, .name = "status%d_other" }, + { .reg = PMBUS_STATUS_MFR_SPECIFIC, .name = "status%d_mfr" }, +}; + +static void pmbus_init_debugfs(struct i2c_client *client, + struct pmbus_data *data) { - int i, idx = 0; - char name[PMBUS_NAME_SIZE]; + struct dentry *symlink_d, *debugfs = client->debugfs; struct pmbus_debugfs_entry *entries; + const char *pathname, *symlink; + char name[PMBUS_NAME_SIZE]; + int page, i, idx = 0; - if (!pmbus_debugfs_dir) - return -ENODEV; + /* + * client->debugfs may be NULL or an ERR_PTR(). dentry_path_raw() + * does not check if its parameters are valid, so validate + * client->debugfs before using it. + */ + if (!pmbus_debugfs_dir || IS_ERR_OR_NULL(debugfs)) + return; /* - * Create the debugfs directory for this device. Use the hwmon device - * name to avoid conflicts (hwmon numbers are globally unique). + * Backwards compatibility: Create symlink from /pmbus/<hwmon_device> + * to i2c debugfs directory. */ - data->debugfs = debugfs_create_dir(dev_name(data->hwmon_dev), - pmbus_debugfs_dir); - if (IS_ERR_OR_NULL(data->debugfs)) { - data->debugfs = NULL; - return -ENODEV; - } + pathname = dentry_path_raw(debugfs, name, sizeof(name)); + if (IS_ERR(pathname)) + return; + + /* + * The path returned by dentry_path_raw() starts with '/'. Prepend it + * with ".." to get the symlink relative to the pmbus root directory. + */ + symlink = kasprintf(GFP_KERNEL, "..%s", pathname); + if (!symlink) + return; + + symlink_d = debugfs_create_symlink(dev_name(data->hwmon_dev), + pmbus_debugfs_dir, symlink); + kfree(symlink); + + devm_add_action_or_reset(data->dev, pmbus_remove_symlink, symlink_d); /* * Allocate the max possible entries we need. - * 6 entries device-specific - * 10 entries page-specific + * device specific: + * ARRAY_SIZE(pmbus_debugfs_block_data) + 2 + * page specific: + * ARRAY_SIZE(pmbus_debugfs_status_data) + 1 */ entries = devm_kcalloc(data->dev, - 6 + data->info->pages * 10, sizeof(*entries), - GFP_KERNEL); + ARRAY_SIZE(pmbus_debugfs_block_data) + 2 + + data->info->pages * (ARRAY_SIZE(pmbus_debugfs_status_data) + 1), + sizeof(*entries), GFP_KERNEL); if (!entries) - return -ENOMEM; + return; /* * Add device-specific entries. @@ -3482,175 +3588,67 @@ static int pmbus_init_debugfs(struct i2c_client *client, * assume that values of the following registers are the same for all * pages and report values only for page 0. */ - if (pmbus_check_block_register(client, 0, PMBUS_MFR_ID)) { + if (!(data->flags & PMBUS_NO_CAPABILITY) && + pmbus_check_byte_register(client, 0, PMBUS_CAPABILITY)) { entries[idx].client = client; entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_ID; - debugfs_create_file("mfr_id", 0444, data->debugfs, + entries[idx].reg = PMBUS_CAPABILITY; + debugfs_create_file("capability", 0444, debugfs, &entries[idx++], - &pmbus_debugfs_ops_mfr); + &pmbus_debugfs_ops); } - - if (pmbus_check_block_register(client, 0, PMBUS_MFR_MODEL)) { + if (pmbus_check_byte_register(client, 0, PMBUS_REVISION)) { entries[idx].client = client; entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_MODEL; - debugfs_create_file("mfr_model", 0444, data->debugfs, + entries[idx].reg = PMBUS_REVISION; + debugfs_create_file("pmbus_revision", 0444, debugfs, &entries[idx++], - &pmbus_debugfs_ops_mfr); + &pmbus_debugfs_ops); } - if (pmbus_check_block_register(client, 0, PMBUS_MFR_REVISION)) { - entries[idx].client = client; - entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_REVISION; - debugfs_create_file("mfr_revision", 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops_mfr); - } + for (i = 0; i < ARRAY_SIZE(pmbus_debugfs_block_data); i++) { + const struct pmbus_debugfs_data *d = &pmbus_debugfs_block_data[i]; - if (pmbus_check_block_register(client, 0, PMBUS_MFR_LOCATION)) { - entries[idx].client = client; - entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_LOCATION; - debugfs_create_file("mfr_location", 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops_mfr); - } - - if (pmbus_check_block_register(client, 0, PMBUS_MFR_DATE)) { - entries[idx].client = client; - entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_DATE; - debugfs_create_file("mfr_date", 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops_mfr); - } - - if (pmbus_check_block_register(client, 0, PMBUS_MFR_SERIAL)) { - entries[idx].client = client; - entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_SERIAL; - debugfs_create_file("mfr_serial", 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops_mfr); + if (pmbus_check_block_register(client, 0, d->reg)) { + entries[idx].client = client; + entries[idx].page = 0; + entries[idx].reg = d->reg; + debugfs_create_file(d->name, 0444, debugfs, + &entries[idx++], + &pmbus_debugfs_block_ops); + } } /* Add page specific entries */ - for (i = 0; i < data->info->pages; ++i) { + for (page = 0; page < data->info->pages; ++page) { /* Check accessibility of status register if it's not page 0 */ - if (!i || pmbus_check_status_register(client, i)) { + if (!page || pmbus_check_status_register(client, page)) { /* No need to set reg as we have special read op. */ entries[idx].client = client; - entries[idx].page = i; - scnprintf(name, PMBUS_NAME_SIZE, "status%d", i); - debugfs_create_file(name, 0444, data->debugfs, + entries[idx].page = page; + scnprintf(name, PMBUS_NAME_SIZE, "status%d", page); + debugfs_create_file(name, 0444, debugfs, &entries[idx++], &pmbus_debugfs_ops_status); } - if (data->info->func[i] & PMBUS_HAVE_STATUS_VOUT) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_VOUT; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_vout", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (data->info->func[i] & PMBUS_HAVE_STATUS_IOUT) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_IOUT; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_iout", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (data->info->func[i] & PMBUS_HAVE_STATUS_INPUT) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_INPUT; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_input", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (data->info->func[i] & PMBUS_HAVE_STATUS_TEMP) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_TEMPERATURE; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_temp", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (pmbus_check_byte_register(client, i, PMBUS_STATUS_CML)) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_CML; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_cml", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (pmbus_check_byte_register(client, i, PMBUS_STATUS_OTHER)) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_OTHER; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_other", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (pmbus_check_byte_register(client, i, - PMBUS_STATUS_MFR_SPECIFIC)) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_MFR_SPECIFIC; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_mfr", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (data->info->func[i] & PMBUS_HAVE_STATUS_FAN12) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_FAN_12; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_fan12", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (data->info->func[i] & PMBUS_HAVE_STATUS_FAN34) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_FAN_34; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_fan34", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); + for (i = 0; i < ARRAY_SIZE(pmbus_debugfs_status_data); i++) { + const struct pmbus_debugfs_data *d = + &pmbus_debugfs_status_data[i]; + + if ((data->info->func[page] & d->flag) || + (!d->flag && pmbus_check_byte_register(client, page, d->reg))) { + entries[idx].client = client; + entries[idx].page = page; + entries[idx].reg = d->reg; + scnprintf(name, PMBUS_NAME_SIZE, d->name, page); + debugfs_create_file(name, 0444, debugfs, + &entries[idx++], + &pmbus_debugfs_ops); + } } } - - return devm_add_action_or_reset(data->dev, - pmbus_remove_debugfs, data->debugfs); -} -#else -static int pmbus_init_debugfs(struct i2c_client *client, - struct pmbus_data *data) -{ - return 0; } -#endif /* IS_ENABLED(CONFIG_DEBUG_FS) */ int pmbus_do_probe(struct i2c_client *client, struct pmbus_driver_info *info) { @@ -3722,8 +3720,8 @@ int pmbus_do_probe(struct i2c_client *client, struct pmbus_driver_info *info) data->groups[0] = &data->group; memcpy(data->groups + 1, info->groups, sizeof(void *) * groups_num); - data->hwmon_dev = devm_hwmon_device_register_with_groups(dev, - name, data, data->groups); + data->hwmon_dev = devm_hwmon_device_register_with_groups(dev, name, + data, data->groups); if (IS_ERR(data->hwmon_dev)) { dev_err(dev, "Failed to register hwmon device\n"); return PTR_ERR(data->hwmon_dev); @@ -3737,9 +3735,7 @@ int pmbus_do_probe(struct i2c_client *client, struct pmbus_driver_info *info) if (ret) return ret; - ret = pmbus_init_debugfs(client, data); - if (ret) - dev_warn(dev, "Failed to register debugfs\n"); + pmbus_init_debugfs(client, data); return 0; } @@ -3747,9 +3743,15 @@ EXPORT_SYMBOL_NS_GPL(pmbus_do_probe, "PMBUS"); struct dentry *pmbus_get_debugfs_dir(struct i2c_client *client) { - struct pmbus_data *data = i2c_get_clientdata(client); - - return data->debugfs; + /* + * client->debugfs may be an ERR_PTR(). Returning that to + * the calling code would potentially require additional + * complexity in the calling code and otherwise add no + * value. Return NULL in that case. + */ + if (IS_ERR_OR_NULL(client->debugfs)) + return NULL; + return client->debugfs; } EXPORT_SYMBOL_NS_GPL(pmbus_get_debugfs_dir, "PMBUS"); diff --git a/drivers/hwmon/pmbus/tda38640.c b/drivers/hwmon/pmbus/tda38640.c index 07fe58c24485..d902d39f49f4 100644 --- a/drivers/hwmon/pmbus/tda38640.c +++ b/drivers/hwmon/pmbus/tda38640.c @@ -15,7 +15,7 @@ #include "pmbus.h" static const struct regulator_desc __maybe_unused tda38640_reg_desc[] = { - PMBUS_REGULATOR_ONE("vout"), + PMBUS_REGULATOR_ONE_NODE("vout"), }; struct tda38640_data { diff --git a/drivers/hwmon/pmbus/tps25990.c b/drivers/hwmon/pmbus/tps25990.c new file mode 100644 index 000000000000..c13edd7e1abf --- /dev/null +++ b/drivers/hwmon/pmbus/tps25990.c @@ -0,0 +1,436 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2024 BayLibre, SAS. +// Author: Jerome Brunet <jbrunet@baylibre.com> + +#include <linux/bitfield.h> +#include <linux/debugfs.h> +#include <linux/err.h> +#include <linux/hwmon-sysfs.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> + +#include "pmbus.h" + +#define TPS25990_READ_VAUX 0xd0 +#define TPS25990_READ_VIN_MIN 0xd1 +#define TPS25990_READ_VIN_PEAK 0xd2 +#define TPS25990_READ_IIN_PEAK 0xd4 +#define TPS25990_READ_PIN_PEAK 0xd5 +#define TPS25990_READ_TEMP_AVG 0xd6 +#define TPS25990_READ_TEMP_PEAK 0xd7 +#define TPS25990_READ_VOUT_MIN 0xda +#define TPS25990_READ_VIN_AVG 0xdc +#define TPS25990_READ_VOUT_AVG 0xdd +#define TPS25990_READ_IIN_AVG 0xde +#define TPS25990_READ_PIN_AVG 0xdf +#define TPS25990_VIREF 0xe0 +#define TPS25990_PK_MIN_AVG 0xea +#define PK_MIN_AVG_RST_PEAK BIT(7) +#define PK_MIN_AVG_RST_AVG BIT(6) +#define PK_MIN_AVG_RST_MIN BIT(5) +#define PK_MIN_AVG_AVG_CNT GENMASK(2, 0) +#define TPS25990_MFR_WRITE_PROTECT 0xf8 +#define TPS25990_UNLOCKED BIT(7) + +#define TPS25990_8B_SHIFT 2 +#define TPS25990_VIN_OVF_NUM 525100 +#define TPS25990_VIN_OVF_DIV 10163 +#define TPS25990_VIN_OVF_OFF 155 +#define TPS25990_IIN_OCF_NUM 953800 +#define TPS25990_IIN_OCF_DIV 129278 +#define TPS25990_IIN_OCF_OFF 157 + +#define PK_MIN_AVG_RST_MASK (PK_MIN_AVG_RST_PEAK | \ + PK_MIN_AVG_RST_AVG | \ + PK_MIN_AVG_RST_MIN) + +/* + * Arbitrary default Rimon value: 1kOhm + * This correspond to an overcurrent limit of 55A, close to the specified limit + * of un-stacked TPS25990 and makes further calculation easier to setup in + * sensor.conf, if necessary + */ +#define TPS25990_DEFAULT_RIMON 1000000000 + +static void tps25990_set_m(int *m, u32 rimon) +{ + u64 val = ((u64)*m) * rimon; + + /* Make sure m fits the s32 type */ + *m = DIV_ROUND_CLOSEST_ULL(val, 1000000); +} + +static int tps25990_mfr_write_protect_set(struct i2c_client *client, + u8 protect) +{ + u8 val; + + switch (protect) { + case 0: + val = 0xa2; + break; + case PB_WP_ALL: + val = 0x0; + break; + default: + return -EINVAL; + } + + return pmbus_write_byte_data(client, -1, TPS25990_MFR_WRITE_PROTECT, + val); +} + +static int tps25990_mfr_write_protect_get(struct i2c_client *client) +{ + int ret = pmbus_read_byte_data(client, -1, TPS25990_MFR_WRITE_PROTECT); + + if (ret < 0) + return ret; + + return (ret & TPS25990_UNLOCKED) ? 0 : PB_WP_ALL; +} + +static int tps25990_read_word_data(struct i2c_client *client, + int page, int phase, int reg) +{ + int ret; + + switch (reg) { + case PMBUS_VIRT_READ_VIN_MAX: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VIN_PEAK); + break; + + case PMBUS_VIRT_READ_VIN_MIN: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VIN_MIN); + break; + + case PMBUS_VIRT_READ_VIN_AVG: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VIN_AVG); + break; + + case PMBUS_VIRT_READ_VOUT_MIN: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VOUT_MIN); + break; + + case PMBUS_VIRT_READ_VOUT_AVG: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VOUT_AVG); + break; + + case PMBUS_VIRT_READ_IIN_AVG: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_IIN_AVG); + break; + + case PMBUS_VIRT_READ_IIN_MAX: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_IIN_PEAK); + break; + + case PMBUS_VIRT_READ_TEMP_AVG: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_TEMP_AVG); + break; + + case PMBUS_VIRT_READ_TEMP_MAX: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_TEMP_PEAK); + break; + + case PMBUS_VIRT_READ_PIN_AVG: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_PIN_AVG); + break; + + case PMBUS_VIRT_READ_PIN_MAX: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_PIN_PEAK); + break; + + case PMBUS_VIRT_READ_VMON: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VAUX); + break; + + case PMBUS_VIN_UV_WARN_LIMIT: + case PMBUS_VIN_UV_FAULT_LIMIT: + case PMBUS_VIN_OV_WARN_LIMIT: + case PMBUS_VOUT_UV_WARN_LIMIT: + case PMBUS_IIN_OC_WARN_LIMIT: + case PMBUS_OT_WARN_LIMIT: + case PMBUS_OT_FAULT_LIMIT: + case PMBUS_PIN_OP_WARN_LIMIT: + /* + * These registers provide an 8 bits value instead of a + * 10bits one. Just shifting twice the register value is + * enough to make the sensor type conversion work, even + * if the datasheet provides different m, b and R for + * those. + */ + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + break; + ret <<= TPS25990_8B_SHIFT; + break; + + case PMBUS_VIN_OV_FAULT_LIMIT: + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + break; + ret = DIV_ROUND_CLOSEST(ret * TPS25990_VIN_OVF_NUM, + TPS25990_VIN_OVF_DIV); + ret += TPS25990_VIN_OVF_OFF; + break; + + case PMBUS_IIN_OC_FAULT_LIMIT: + /* + * VIREF directly sets the over-current limit at which the eFuse + * will turn the FET off and trigger a fault. Expose it through + * this generic property instead of a manufacturer specific one. + */ + ret = pmbus_read_byte_data(client, page, TPS25990_VIREF); + if (ret < 0) + break; + ret = DIV_ROUND_CLOSEST(ret * TPS25990_IIN_OCF_NUM, + TPS25990_IIN_OCF_DIV); + ret += TPS25990_IIN_OCF_OFF; + break; + + case PMBUS_VIRT_SAMPLES: + ret = pmbus_read_byte_data(client, page, TPS25990_PK_MIN_AVG); + if (ret < 0) + break; + ret = 1 << FIELD_GET(PK_MIN_AVG_AVG_CNT, ret); + break; + + case PMBUS_VIRT_RESET_TEMP_HISTORY: + case PMBUS_VIRT_RESET_VIN_HISTORY: + case PMBUS_VIRT_RESET_IIN_HISTORY: + case PMBUS_VIRT_RESET_PIN_HISTORY: + case PMBUS_VIRT_RESET_VOUT_HISTORY: + ret = 0; + break; + + default: + ret = -ENODATA; + break; + } + + return ret; +} + +static int tps25990_write_word_data(struct i2c_client *client, + int page, int reg, u16 value) +{ + int ret; + + switch (reg) { + case PMBUS_VIN_UV_WARN_LIMIT: + case PMBUS_VIN_UV_FAULT_LIMIT: + case PMBUS_VIN_OV_WARN_LIMIT: + case PMBUS_VOUT_UV_WARN_LIMIT: + case PMBUS_IIN_OC_WARN_LIMIT: + case PMBUS_OT_WARN_LIMIT: + case PMBUS_OT_FAULT_LIMIT: + case PMBUS_PIN_OP_WARN_LIMIT: + value >>= TPS25990_8B_SHIFT; + value = clamp_val(value, 0, 0xff); + ret = pmbus_write_word_data(client, page, reg, value); + break; + + case PMBUS_VIN_OV_FAULT_LIMIT: + value -= TPS25990_VIN_OVF_OFF; + value = DIV_ROUND_CLOSEST(((unsigned int)value) * TPS25990_VIN_OVF_DIV, + TPS25990_VIN_OVF_NUM); + value = clamp_val(value, 0, 0xf); + ret = pmbus_write_word_data(client, page, reg, value); + break; + + case PMBUS_IIN_OC_FAULT_LIMIT: + value -= TPS25990_IIN_OCF_OFF; + value = DIV_ROUND_CLOSEST(((unsigned int)value) * TPS25990_IIN_OCF_DIV, + TPS25990_IIN_OCF_NUM); + value = clamp_val(value, 0, 0x3f); + ret = pmbus_write_byte_data(client, page, TPS25990_VIREF, value); + break; + + case PMBUS_VIRT_SAMPLES: + value = clamp_val(value, 1, 1 << PK_MIN_AVG_AVG_CNT); + value = ilog2(value); + ret = pmbus_update_byte_data(client, page, TPS25990_PK_MIN_AVG, + PK_MIN_AVG_AVG_CNT, + FIELD_PREP(PK_MIN_AVG_AVG_CNT, value)); + break; + + case PMBUS_VIRT_RESET_TEMP_HISTORY: + case PMBUS_VIRT_RESET_VIN_HISTORY: + case PMBUS_VIRT_RESET_IIN_HISTORY: + case PMBUS_VIRT_RESET_PIN_HISTORY: + case PMBUS_VIRT_RESET_VOUT_HISTORY: + /* + * TPS25990 has history resets based on MIN/AVG/PEAK instead of per + * sensor type. Exposing this quirk in hwmon is not desirable so + * reset MIN, AVG and PEAK together. Even is there effectively only + * one reset, which resets everything, expose the 5 entries so + * userspace is not required map a sensor type to another to trigger + * a reset + */ + ret = pmbus_update_byte_data(client, 0, TPS25990_PK_MIN_AVG, + PK_MIN_AVG_RST_MASK, + PK_MIN_AVG_RST_MASK); + break; + + default: + ret = -ENODATA; + break; + } + + return ret; +} + +static int tps25990_read_byte_data(struct i2c_client *client, + int page, int reg) +{ + int ret; + + switch (reg) { + case PMBUS_WRITE_PROTECT: + ret = tps25990_mfr_write_protect_get(client); + break; + + default: + ret = -ENODATA; + break; + } + + return ret; +} + +static int tps25990_write_byte_data(struct i2c_client *client, + int page, int reg, u8 byte) +{ + int ret; + + switch (reg) { + case PMBUS_WRITE_PROTECT: + ret = tps25990_mfr_write_protect_set(client, byte); + break; + + default: + ret = -ENODATA; + break; + } + + return ret; +} + +#if IS_ENABLED(CONFIG_SENSORS_TPS25990_REGULATOR) +static const struct regulator_desc tps25990_reg_desc[] = { + PMBUS_REGULATOR_ONE_NODE("vout"), +}; +#endif + +static const struct pmbus_driver_info tps25990_base_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = direct, + .m[PSC_VOLTAGE_IN] = 5251, + .b[PSC_VOLTAGE_IN] = 0, + .R[PSC_VOLTAGE_IN] = -2, + .format[PSC_VOLTAGE_OUT] = direct, + .m[PSC_VOLTAGE_OUT] = 5251, + .b[PSC_VOLTAGE_OUT] = 0, + .R[PSC_VOLTAGE_OUT] = -2, + .format[PSC_TEMPERATURE] = direct, + .m[PSC_TEMPERATURE] = 140, + .b[PSC_TEMPERATURE] = 32100, + .R[PSC_TEMPERATURE] = -2, + /* + * Current and Power measurement depends on the ohm value + * of Rimon. m is multiplied by 1000 below to have an integer + * and -3 is added to R to compensate. + */ + .format[PSC_CURRENT_IN] = direct, + .m[PSC_CURRENT_IN] = 9538, + .b[PSC_CURRENT_IN] = 0, + .R[PSC_CURRENT_IN] = -6, + .format[PSC_POWER] = direct, + .m[PSC_POWER] = 4901, + .b[PSC_POWER] = 0, + .R[PSC_POWER] = -7, + .func[0] = (PMBUS_HAVE_VIN | + PMBUS_HAVE_VOUT | + PMBUS_HAVE_VMON | + PMBUS_HAVE_IIN | + PMBUS_HAVE_PIN | + PMBUS_HAVE_TEMP | + PMBUS_HAVE_STATUS_VOUT | + PMBUS_HAVE_STATUS_IOUT | + PMBUS_HAVE_STATUS_INPUT | + PMBUS_HAVE_STATUS_TEMP | + PMBUS_HAVE_SAMPLES), + .read_word_data = tps25990_read_word_data, + .write_word_data = tps25990_write_word_data, + .read_byte_data = tps25990_read_byte_data, + .write_byte_data = tps25990_write_byte_data, + +#if IS_ENABLED(CONFIG_SENSORS_TPS25990_REGULATOR) + .reg_desc = tps25990_reg_desc, + .num_regulators = ARRAY_SIZE(tps25990_reg_desc), +#endif +}; + +static const struct i2c_device_id tps25990_i2c_id[] = { + { "tps25990" }, + {} +}; +MODULE_DEVICE_TABLE(i2c, tps25990_i2c_id); + +static const struct of_device_id tps25990_of_match[] = { + { .compatible = "ti,tps25990" }, + {} +}; +MODULE_DEVICE_TABLE(of, tps25990_of_match); + +static int tps25990_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct pmbus_driver_info *info; + u32 rimon = TPS25990_DEFAULT_RIMON; + int ret; + + ret = device_property_read_u32(dev, "ti,rimon-micro-ohms", &rimon); + if (ret < 0 && ret != -EINVAL) + return dev_err_probe(dev, ret, "failed to get rimon\n"); + + info = devm_kmemdup(dev, &tps25990_base_info, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + /* Adapt the current and power scale for each instance */ + tps25990_set_m(&info->m[PSC_CURRENT_IN], rimon); + tps25990_set_m(&info->m[PSC_POWER], rimon); + + return pmbus_do_probe(client, info); +} + +static struct i2c_driver tps25990_driver = { + .driver = { + .name = "tps25990", + .of_match_table = tps25990_of_match, + }, + .probe = tps25990_probe, + .id_table = tps25990_i2c_id, +}; +module_i2c_driver(tps25990_driver); + +MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>"); +MODULE_DESCRIPTION("PMBUS driver for TPS25990 eFuse"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ucd9000.c b/drivers/hwmon/pmbus/ucd9000.c index 9b0eadc81a2e..52d4000902d5 100644 --- a/drivers/hwmon/pmbus/ucd9000.c +++ b/drivers/hwmon/pmbus/ucd9000.c @@ -212,8 +212,8 @@ static int ucd9000_gpio_get(struct gpio_chip *gc, unsigned int offset) return !!(ret & UCD9000_GPIO_CONFIG_STATUS); } -static void ucd9000_gpio_set(struct gpio_chip *gc, unsigned int offset, - int value) +static int ucd9000_gpio_set(struct gpio_chip *gc, unsigned int offset, + int value) { struct i2c_client *client = gpiochip_get_data(gc); int ret; @@ -222,19 +222,19 @@ static void ucd9000_gpio_set(struct gpio_chip *gc, unsigned int offset, if (ret < 0) { dev_dbg(&client->dev, "failed to read GPIO %d config: %d\n", offset, ret); - return; + return ret; } if (value) { - if (ret & UCD9000_GPIO_CONFIG_STATUS) - return; + if (ret & UCD9000_GPIO_CONFIG_OUT_VALUE) + return 0; - ret |= UCD9000_GPIO_CONFIG_STATUS; + ret |= UCD9000_GPIO_CONFIG_OUT_VALUE; } else { - if (!(ret & UCD9000_GPIO_CONFIG_STATUS)) - return; + if (!(ret & UCD9000_GPIO_CONFIG_OUT_VALUE)) + return 0; - ret &= ~UCD9000_GPIO_CONFIG_STATUS; + ret &= ~UCD9000_GPIO_CONFIG_OUT_VALUE; } ret |= UCD9000_GPIO_CONFIG_ENABLE; @@ -244,7 +244,7 @@ static void ucd9000_gpio_set(struct gpio_chip *gc, unsigned int offset, if (ret < 0) { dev_dbg(&client->dev, "Failed to write GPIO %d config: %d\n", offset, ret); - return; + return ret; } ret &= ~UCD9000_GPIO_CONFIG_ENABLE; @@ -253,6 +253,8 @@ static void ucd9000_gpio_set(struct gpio_chip *gc, unsigned int offset, if (ret < 0) dev_dbg(&client->dev, "Failed to write GPIO %d config: %d\n", offset, ret); + + return ret; } static int ucd9000_gpio_get_direction(struct gpio_chip *gc, @@ -362,7 +364,7 @@ static void ucd9000_probe_gpio(struct i2c_client *client, data->gpio.direction_input = ucd9000_gpio_direction_input; data->gpio.direction_output = ucd9000_gpio_direction_output; data->gpio.get = ucd9000_gpio_get; - data->gpio.set = ucd9000_gpio_set; + data->gpio.set_rv = ucd9000_gpio_set; data->gpio.can_sleep = true; data->gpio.base = -1; data->gpio.parent = &client->dev; diff --git a/drivers/hwmon/pt5161l.c b/drivers/hwmon/pt5161l.c index a9f0b23f9e76..20e3cfa625f1 100644 --- a/drivers/hwmon/pt5161l.c +++ b/drivers/hwmon/pt5161l.c @@ -63,7 +63,6 @@ struct pt5161l_fw_ver { /* Each client has this additional data */ struct pt5161l_data { struct i2c_client *client; - struct dentry *debugfs; struct pt5161l_fw_ver fw_ver; struct mutex lock; /* for atomic I2C transactions */ bool init_done; @@ -72,8 +71,6 @@ struct pt5161l_data { bool mm_wide_reg_access; /* MM assisted wide register access */ }; -static struct dentry *pt5161l_debugfs_dir; - /* * Write multiple data bytes to Aries over I2C */ @@ -568,21 +565,16 @@ static const struct file_operations pt5161l_debugfs_ops_hb_sts = { .open = simple_open, }; -static int pt5161l_init_debugfs(struct pt5161l_data *data) +static void pt5161l_init_debugfs(struct i2c_client *client, struct pt5161l_data *data) { - data->debugfs = debugfs_create_dir(dev_name(&data->client->dev), - pt5161l_debugfs_dir); - - debugfs_create_file("fw_ver", 0444, data->debugfs, data, + debugfs_create_file("fw_ver", 0444, client->debugfs, data, &pt5161l_debugfs_ops_fw_ver); - debugfs_create_file("fw_load_status", 0444, data->debugfs, data, + debugfs_create_file("fw_load_status", 0444, client->debugfs, data, &pt5161l_debugfs_ops_fw_load_sts); - debugfs_create_file("heartbeat_status", 0444, data->debugfs, data, + debugfs_create_file("heartbeat_status", 0444, client->debugfs, data, &pt5161l_debugfs_ops_hb_sts); - - return 0; } static int pt5161l_probe(struct i2c_client *client) @@ -604,17 +596,12 @@ static int pt5161l_probe(struct i2c_client *client) data, &pt5161l_chip_info, NULL); + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); - pt5161l_init_debugfs(data); - - return PTR_ERR_OR_ZERO(hwmon_dev); -} - -static void pt5161l_remove(struct i2c_client *client) -{ - struct pt5161l_data *data = i2c_get_clientdata(client); + pt5161l_init_debugfs(client, data); - debugfs_remove_recursive(data->debugfs); + return 0; } static const struct of_device_id __maybe_unused pt5161l_of_match[] = { @@ -643,24 +630,9 @@ static struct i2c_driver pt5161l_driver = { .acpi_match_table = ACPI_PTR(pt5161l_acpi_match), }, .probe = pt5161l_probe, - .remove = pt5161l_remove, .id_table = pt5161l_id, }; - -static int __init pt5161l_init(void) -{ - pt5161l_debugfs_dir = debugfs_create_dir("pt5161l", NULL); - return i2c_add_driver(&pt5161l_driver); -} - -static void __exit pt5161l_exit(void) -{ - i2c_del_driver(&pt5161l_driver); - debugfs_remove_recursive(pt5161l_debugfs_dir); -} - -module_init(pt5161l_init); -module_exit(pt5161l_exit); +module_i2c_driver(pt5161l_driver); MODULE_AUTHOR("Cosmo Chou <cosmo.chou@quantatw.com>"); MODULE_DESCRIPTION("Hwmon driver for Astera Labs Aries PCIe retimer"); diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c index 53a1a968d00d..d0fe53451bdf 100644 --- a/drivers/hwmon/pwm-fan.c +++ b/drivers/hwmon/pwm-fan.c @@ -78,7 +78,7 @@ static irqreturn_t pulse_handler(int irq, void *dev_id) static void sample_timer(struct timer_list *t) { - struct pwm_fan_ctx *ctx = from_timer(ctx, t, rpm_timer); + struct pwm_fan_ctx *ctx = timer_container_of(ctx, t, rpm_timer); unsigned int delta = ktime_ms_delta(ktime_get(), ctx->sample_start); int i; @@ -483,7 +483,7 @@ static void pwm_fan_cleanup(void *__ctx) { struct pwm_fan_ctx *ctx = __ctx; - del_timer_sync(&ctx->rpm_timer); + timer_delete_sync(&ctx->rpm_timer); /* Switch off everything */ ctx->enable_mode = pwm_disable_reg_disable; pwm_fan_power_off(ctx, true); @@ -497,7 +497,7 @@ static int pwm_fan_probe(struct platform_device *pdev) struct device *hwmon; int ret; const struct hwmon_channel_info **channels; - u32 pwm_min_from_stopped = 0; + u32 initial_pwm, pwm_min_from_stopped = 0; u32 *fan_channel_config; int channel_count = 1; /* We always have a PWM channel. */ int i; @@ -545,11 +545,21 @@ static int pwm_fan_probe(struct platform_device *pdev) ctx->enable_mode = pwm_disable_reg_enable; + ret = pwm_fan_get_cooling_data(dev, ctx); + if (ret) + return ret; + + /* use maximum cooling level if provided */ + if (ctx->pwm_fan_cooling_levels) + initial_pwm = ctx->pwm_fan_cooling_levels[ctx->pwm_fan_max_state]; + else + initial_pwm = MAX_PWM; + /* * Set duty cycle to maximum allowed and enable PWM output as well as * the regulator. In case of error nothing is changed */ - ret = set_pwm(ctx, MAX_PWM); + ret = set_pwm(ctx, initial_pwm); if (ret) { dev_err(dev, "Failed to configure PWM: %d\n", ret); return ret; @@ -610,8 +620,8 @@ static int pwm_fan_probe(struct platform_device *pdev) if (tach->irq == -EPROBE_DEFER) return tach->irq; if (tach->irq > 0) { - ret = devm_request_irq(dev, tach->irq, pulse_handler, 0, - pdev->name, tach); + ret = devm_request_irq(dev, tach->irq, pulse_handler, + IRQF_NO_THREAD, pdev->name, tach); if (ret) { dev_err(dev, "Failed to request interrupt: %d\n", @@ -638,16 +648,16 @@ static int pwm_fan_probe(struct platform_device *pdev) channels[1] = &ctx->fan_channel; } - ret = of_property_read_u32(dev->of_node, "fan-stop-to-start-percent", - &pwm_min_from_stopped); + ret = device_property_read_u32(dev, "fan-stop-to-start-percent", + &pwm_min_from_stopped); if (!ret && pwm_min_from_stopped) { ctx->pwm_duty_cycle_from_stopped = DIV_ROUND_UP_ULL(pwm_min_from_stopped * (ctx->pwm_state.period - 1), 100); } - ret = of_property_read_u32(dev->of_node, "fan-stop-to-start-us", - &ctx->pwm_usec_from_stopped); + ret = device_property_read_u32(dev, "fan-stop-to-start-us", + &ctx->pwm_usec_from_stopped); if (ret) ctx->pwm_usec_from_stopped = 250000; @@ -661,10 +671,6 @@ static int pwm_fan_probe(struct platform_device *pdev) return PTR_ERR(hwmon); } - ret = pwm_fan_get_cooling_data(dev, ctx); - if (ret) - return ret; - ctx->pwm_fan_state = ctx->pwm_fan_max_state; if (IS_ENABLED(CONFIG_THERMAL)) { cdev = devm_thermal_of_cooling_device_register(dev, diff --git a/drivers/hwmon/qnap-mcu-hwmon.c b/drivers/hwmon/qnap-mcu-hwmon.c new file mode 100644 index 000000000000..e86e64c4d391 --- /dev/null +++ b/drivers/hwmon/qnap-mcu-hwmon.c @@ -0,0 +1,363 @@ +// SPDX-License-Identifier: GPL-2.0-only + +/* + * Driver for hwmon elements found on QNAP-MCU devices + * + * Copyright (C) 2024 Heiko Stuebner <heiko@sntech.de> + */ + +#include <linux/hwmon.h> +#include <linux/mfd/qnap-mcu.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/property.h> +#include <linux/thermal.h> + +struct qnap_mcu_hwmon { + struct qnap_mcu *mcu; + struct device *dev; + + unsigned int pwm_min; + unsigned int pwm_max; + + struct fwnode_handle *fan_node; + unsigned int fan_state; + unsigned int fan_max_state; + unsigned int *fan_cooling_levels; + + struct thermal_cooling_device *cdev; + struct hwmon_chip_info info; +}; + +static int qnap_mcu_hwmon_get_rpm(struct qnap_mcu_hwmon *hwm) +{ + static const u8 cmd[] = { '@', 'F', 'A' }; + u8 reply[6]; + int ret; + + /* poll the fan rpm */ + ret = qnap_mcu_exec(hwm->mcu, cmd, sizeof(cmd), reply, sizeof(reply)); + if (ret) + return ret; + + /* First 2 bytes must mirror the sent command */ + if (memcmp(cmd, reply, 2)) + return -EIO; + + return reply[4] * 30; +} + +static int qnap_mcu_hwmon_get_pwm(struct qnap_mcu_hwmon *hwm) +{ + static const u8 cmd[] = { '@', 'F', 'Z', '0' }; /* 0 = fan-id? */ + u8 reply[4]; + int ret; + + /* poll the fan pwm */ + ret = qnap_mcu_exec(hwm->mcu, cmd, sizeof(cmd), reply, sizeof(reply)); + if (ret) + return ret; + + /* First 3 bytes must mirror the sent command */ + if (memcmp(cmd, reply, 3)) + return -EIO; + + return reply[3]; +} + +static int qnap_mcu_hwmon_set_pwm(struct qnap_mcu_hwmon *hwm, u8 pwm) +{ + const u8 cmd[] = { '@', 'F', 'W', '0', pwm }; /* 0 = fan-id?, pwm 0-255 */ + + /* set the fan pwm */ + return qnap_mcu_exec_with_ack(hwm->mcu, cmd, sizeof(cmd)); +} + +static int qnap_mcu_hwmon_get_temp(struct qnap_mcu_hwmon *hwm) +{ + static const u8 cmd[] = { '@', 'T', '3' }; + u8 reply[4]; + int ret; + + /* poll the fan rpm */ + ret = qnap_mcu_exec(hwm->mcu, cmd, sizeof(cmd), reply, sizeof(reply)); + if (ret) + return ret; + + /* First bytes must mirror the sent command */ + if (memcmp(cmd, reply, sizeof(cmd))) + return -EIO; + + /* + * There is an unknown bit set in bit7. + * Bits [6:0] report the actual temperature as returned by the + * original qnap firmware-tools, so just drop bit7 for now. + */ + return (reply[3] & 0x7f) * 1000; +} + +static int qnap_mcu_hwmon_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + struct qnap_mcu_hwmon *hwm = dev_get_drvdata(dev); + + switch (attr) { + case hwmon_pwm_input: + if (val < 0 || val > 255) + return -EINVAL; + + if (val != 0) + val = clamp_val(val, hwm->pwm_min, hwm->pwm_max); + + return qnap_mcu_hwmon_set_pwm(hwm, val); + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static int qnap_mcu_hwmon_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct qnap_mcu_hwmon *hwm = dev_get_drvdata(dev); + int ret; + + switch (type) { + case hwmon_pwm: + switch (attr) { + case hwmon_pwm_input: + ret = qnap_mcu_hwmon_get_pwm(hwm); + if (ret < 0) + return ret; + + *val = ret; + return 0; + default: + return -EOPNOTSUPP; + } + case hwmon_fan: + ret = qnap_mcu_hwmon_get_rpm(hwm); + if (ret < 0) + return ret; + + *val = ret; + return 0; + case hwmon_temp: + ret = qnap_mcu_hwmon_get_temp(hwm); + if (ret < 0) + return ret; + + *val = ret; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static umode_t qnap_mcu_hwmon_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_temp: + return 0444; + + case hwmon_pwm: + return 0644; + + case hwmon_fan: + return 0444; + + default: + return 0; + } +} + +static const struct hwmon_ops qnap_mcu_hwmon_hwmon_ops = { + .is_visible = qnap_mcu_hwmon_is_visible, + .read = qnap_mcu_hwmon_read, + .write = qnap_mcu_hwmon_write, +}; + +/* thermal cooling device callbacks */ +static int qnap_mcu_hwmon_get_max_state(struct thermal_cooling_device *cdev, + unsigned long *state) +{ + struct qnap_mcu_hwmon *hwm = cdev->devdata; + + if (!hwm) + return -EINVAL; + + *state = hwm->fan_max_state; + + return 0; +} + +static int qnap_mcu_hwmon_get_cur_state(struct thermal_cooling_device *cdev, + unsigned long *state) +{ + struct qnap_mcu_hwmon *hwm = cdev->devdata; + + if (!hwm) + return -EINVAL; + + *state = hwm->fan_state; + + return 0; +} + +static int qnap_mcu_hwmon_set_cur_state(struct thermal_cooling_device *cdev, + unsigned long state) +{ + struct qnap_mcu_hwmon *hwm = cdev->devdata; + int ret; + + if (!hwm || state > hwm->fan_max_state) + return -EINVAL; + + if (state == hwm->fan_state) + return 0; + + ret = qnap_mcu_hwmon_set_pwm(hwm, hwm->fan_cooling_levels[state]); + if (ret) + return ret; + + hwm->fan_state = state; + + return ret; +} + +static const struct thermal_cooling_device_ops qnap_mcu_hwmon_cooling_ops = { + .get_max_state = qnap_mcu_hwmon_get_max_state, + .get_cur_state = qnap_mcu_hwmon_get_cur_state, + .set_cur_state = qnap_mcu_hwmon_set_cur_state, +}; + +static void devm_fan_node_release(void *data) +{ + struct qnap_mcu_hwmon *hwm = data; + + fwnode_handle_put(hwm->fan_node); +} + +static int qnap_mcu_hwmon_get_cooling_data(struct device *dev, struct qnap_mcu_hwmon *hwm) +{ + struct fwnode_handle *fwnode; + int num, i, ret; + + fwnode = device_get_named_child_node(dev->parent, "fan-0"); + if (!fwnode) + return 0; + + /* if we found the fan-node, we're keeping it until device-unbind */ + hwm->fan_node = fwnode; + ret = devm_add_action_or_reset(dev, devm_fan_node_release, hwm); + if (ret) + return ret; + + num = fwnode_property_count_u32(fwnode, "cooling-levels"); + if (num <= 0) + return dev_err_probe(dev, num ? : -EINVAL, + "Failed to count elements in 'cooling-levels'\n"); + + hwm->fan_cooling_levels = devm_kcalloc(dev, num, sizeof(u32), + GFP_KERNEL); + if (!hwm->fan_cooling_levels) + return -ENOMEM; + + ret = fwnode_property_read_u32_array(fwnode, "cooling-levels", + hwm->fan_cooling_levels, num); + if (ret) + return dev_err_probe(dev, ret, "Failed to read 'cooling-levels'\n"); + + for (i = 0; i < num; i++) { + if (hwm->fan_cooling_levels[i] > hwm->pwm_max) + return dev_err_probe(dev, -EINVAL, "fan state[%d]:%d > %d\n", i, + hwm->fan_cooling_levels[i], hwm->pwm_max); + } + + hwm->fan_max_state = num - 1; + + return 0; +} + +static const struct hwmon_channel_info * const qnap_mcu_hwmon_channels[] = { + HWMON_CHANNEL_INFO(pwm, HWMON_PWM_INPUT), + HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT), + HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT), + NULL +}; + +static int qnap_mcu_hwmon_probe(struct platform_device *pdev) +{ + struct qnap_mcu *mcu = dev_get_drvdata(pdev->dev.parent); + const struct qnap_mcu_variant *variant = pdev->dev.platform_data; + struct qnap_mcu_hwmon *hwm; + struct thermal_cooling_device *cdev; + struct device *dev = &pdev->dev; + struct device *hwmon; + int ret; + + hwm = devm_kzalloc(dev, sizeof(*hwm), GFP_KERNEL); + if (!hwm) + return -ENOMEM; + + hwm->mcu = mcu; + hwm->dev = &pdev->dev; + hwm->pwm_min = variant->fan_pwm_min; + hwm->pwm_max = variant->fan_pwm_max; + + platform_set_drvdata(pdev, hwm); + + /* + * Set duty cycle to maximum allowed. + */ + ret = qnap_mcu_hwmon_set_pwm(hwm, hwm->pwm_max); + if (ret) + return ret; + + hwm->info.ops = &qnap_mcu_hwmon_hwmon_ops; + hwm->info.info = qnap_mcu_hwmon_channels; + + ret = qnap_mcu_hwmon_get_cooling_data(dev, hwm); + if (ret) + return ret; + + hwm->fan_state = hwm->fan_max_state; + + hwmon = devm_hwmon_device_register_with_info(dev, "qnapmcu", + hwm, &hwm->info, NULL); + if (IS_ERR(hwmon)) + return dev_err_probe(dev, PTR_ERR(hwmon), "Failed to register hwmon device\n"); + + /* + * Only register cooling device when we found cooling-levels. + * qnap_mcu_hwmon_get_cooling_data() will fail when reading malformed + * levels and only succeed with either no or correct cooling levels. + */ + if (IS_ENABLED(CONFIG_THERMAL) && hwm->fan_cooling_levels) { + cdev = devm_thermal_of_cooling_device_register(dev, + to_of_node(hwm->fan_node), "qnap-mcu-hwmon", + hwm, &qnap_mcu_hwmon_cooling_ops); + if (IS_ERR(cdev)) + return dev_err_probe(dev, PTR_ERR(cdev), + "Failed to register qnap-mcu-hwmon as cooling device\n"); + hwm->cdev = cdev; + } + + return 0; +} + +static struct platform_driver qnap_mcu_hwmon_driver = { + .probe = qnap_mcu_hwmon_probe, + .driver = { + .name = "qnap-mcu-hwmon", + }, +}; +module_platform_driver(qnap_mcu_hwmon_driver); + +MODULE_ALIAS("platform:qnap-mcu-hwmon"); +MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>"); +MODULE_DESCRIPTION("QNAP MCU hwmon driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/raspberrypi-hwmon.c b/drivers/hwmon/raspberrypi-hwmon.c index 10ef1e1f9458..a2938881ccd2 100644 --- a/drivers/hwmon/raspberrypi-hwmon.c +++ b/drivers/hwmon/raspberrypi-hwmon.c @@ -128,10 +128,32 @@ static int rpi_hwmon_probe(struct platform_device *pdev) return 0; } +static int rpi_hwmon_suspend(struct device *dev) +{ + struct rpi_hwmon_data *data = dev_get_drvdata(dev); + + cancel_delayed_work_sync(&data->get_values_poll_work); + + return 0; +} + +static int rpi_hwmon_resume(struct device *dev) +{ + struct rpi_hwmon_data *data = dev_get_drvdata(dev); + + get_values_poll(&data->get_values_poll_work.work); + + return 0; +} + +static DEFINE_SIMPLE_DEV_PM_OPS(rpi_hwmon_pm_ops, rpi_hwmon_suspend, + rpi_hwmon_resume); + static struct platform_driver rpi_hwmon_driver = { .probe = rpi_hwmon_probe, .driver = { .name = "raspberrypi-hwmon", + .pm = pm_ptr(&rpi_hwmon_pm_ops), }, }; module_platform_driver(rpi_hwmon_driver); diff --git a/drivers/hwmon/sbrmi.c b/drivers/hwmon/sbrmi.c deleted file mode 100644 index d48d8e5460ff..000000000000 --- a/drivers/hwmon/sbrmi.c +++ /dev/null @@ -1,357 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * sbrmi.c - hwmon driver for a SB-RMI mailbox - * compliant AMD SoC device. - * - * Copyright (C) 2020-2021 Advanced Micro Devices, Inc. - */ - -#include <linux/delay.h> -#include <linux/err.h> -#include <linux/hwmon.h> -#include <linux/i2c.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/mutex.h> -#include <linux/of.h> - -/* Do not allow setting negative power limit */ -#define SBRMI_PWR_MIN 0 -/* Mask for Status Register bit[1] */ -#define SW_ALERT_MASK 0x2 - -/* Software Interrupt for triggering */ -#define START_CMD 0x80 -#define TRIGGER_MAILBOX 0x01 - -/* - * SB-RMI supports soft mailbox service request to MP1 (power management - * firmware) through SBRMI inbound/outbound message registers. - * SB-RMI message IDs - */ -enum sbrmi_msg_id { - SBRMI_READ_PKG_PWR_CONSUMPTION = 0x1, - SBRMI_WRITE_PKG_PWR_LIMIT, - SBRMI_READ_PKG_PWR_LIMIT, - SBRMI_READ_PKG_MAX_PWR_LIMIT, -}; - -/* SB-RMI registers */ -enum sbrmi_reg { - SBRMI_CTRL = 0x01, - SBRMI_STATUS, - SBRMI_OUTBNDMSG0 = 0x30, - SBRMI_OUTBNDMSG1, - SBRMI_OUTBNDMSG2, - SBRMI_OUTBNDMSG3, - SBRMI_OUTBNDMSG4, - SBRMI_OUTBNDMSG5, - SBRMI_OUTBNDMSG6, - SBRMI_OUTBNDMSG7, - SBRMI_INBNDMSG0, - SBRMI_INBNDMSG1, - SBRMI_INBNDMSG2, - SBRMI_INBNDMSG3, - SBRMI_INBNDMSG4, - SBRMI_INBNDMSG5, - SBRMI_INBNDMSG6, - SBRMI_INBNDMSG7, - SBRMI_SW_INTERRUPT, -}; - -/* Each client has this additional data */ -struct sbrmi_data { - struct i2c_client *client; - struct mutex lock; - u32 pwr_limit_max; -}; - -struct sbrmi_mailbox_msg { - u8 cmd; - bool read; - u32 data_in; - u32 data_out; -}; - -static int sbrmi_enable_alert(struct i2c_client *client) -{ - int ctrl; - - /* - * Enable the SB-RMI Software alert status - * by writing 0 to bit 4 of Control register(0x1) - */ - ctrl = i2c_smbus_read_byte_data(client, SBRMI_CTRL); - if (ctrl < 0) - return ctrl; - - if (ctrl & 0x10) { - ctrl &= ~0x10; - return i2c_smbus_write_byte_data(client, - SBRMI_CTRL, ctrl); - } - - return 0; -} - -static int rmi_mailbox_xfer(struct sbrmi_data *data, - struct sbrmi_mailbox_msg *msg) -{ - int i, ret, retry = 10; - int sw_status; - u8 byte; - - mutex_lock(&data->lock); - - /* Indicate firmware a command is to be serviced */ - ret = i2c_smbus_write_byte_data(data->client, - SBRMI_INBNDMSG7, START_CMD); - if (ret < 0) - goto exit_unlock; - - /* Write the command to SBRMI::InBndMsg_inst0 */ - ret = i2c_smbus_write_byte_data(data->client, - SBRMI_INBNDMSG0, msg->cmd); - if (ret < 0) - goto exit_unlock; - - /* - * For both read and write the initiator (BMC) writes - * Command Data In[31:0] to SBRMI::InBndMsg_inst[4:1] - * SBRMI_x3C(MSB):SBRMI_x39(LSB) - */ - for (i = 0; i < 4; i++) { - byte = (msg->data_in >> i * 8) & 0xff; - ret = i2c_smbus_write_byte_data(data->client, - SBRMI_INBNDMSG1 + i, byte); - if (ret < 0) - goto exit_unlock; - } - - /* - * Write 0x01 to SBRMI::SoftwareInterrupt to notify firmware to - * perform the requested read or write command - */ - ret = i2c_smbus_write_byte_data(data->client, - SBRMI_SW_INTERRUPT, TRIGGER_MAILBOX); - if (ret < 0) - goto exit_unlock; - - /* - * Firmware will write SBRMI::Status[SwAlertSts]=1 to generate - * an ALERT (if enabled) to initiator (BMC) to indicate completion - * of the requested command - */ - do { - sw_status = i2c_smbus_read_byte_data(data->client, - SBRMI_STATUS); - if (sw_status < 0) { - ret = sw_status; - goto exit_unlock; - } - if (sw_status & SW_ALERT_MASK) - break; - usleep_range(50, 100); - } while (retry--); - - if (retry < 0) { - dev_err(&data->client->dev, - "Firmware fail to indicate command completion\n"); - ret = -EIO; - goto exit_unlock; - } - - /* - * For a read operation, the initiator (BMC) reads the firmware - * response Command Data Out[31:0] from SBRMI::OutBndMsg_inst[4:1] - * {SBRMI_x34(MSB):SBRMI_x31(LSB)}. - */ - if (msg->read) { - for (i = 0; i < 4; i++) { - ret = i2c_smbus_read_byte_data(data->client, - SBRMI_OUTBNDMSG1 + i); - if (ret < 0) - goto exit_unlock; - msg->data_out |= ret << i * 8; - } - } - - /* - * BMC must write 1'b1 to SBRMI::Status[SwAlertSts] to clear the - * ALERT to initiator - */ - ret = i2c_smbus_write_byte_data(data->client, SBRMI_STATUS, - sw_status | SW_ALERT_MASK); - -exit_unlock: - mutex_unlock(&data->lock); - return ret; -} - -static int sbrmi_read(struct device *dev, enum hwmon_sensor_types type, - u32 attr, int channel, long *val) -{ - struct sbrmi_data *data = dev_get_drvdata(dev); - struct sbrmi_mailbox_msg msg = { 0 }; - int ret; - - if (type != hwmon_power) - return -EINVAL; - - msg.read = true; - switch (attr) { - case hwmon_power_input: - msg.cmd = SBRMI_READ_PKG_PWR_CONSUMPTION; - ret = rmi_mailbox_xfer(data, &msg); - break; - case hwmon_power_cap: - msg.cmd = SBRMI_READ_PKG_PWR_LIMIT; - ret = rmi_mailbox_xfer(data, &msg); - break; - case hwmon_power_cap_max: - msg.data_out = data->pwr_limit_max; - ret = 0; - break; - default: - return -EINVAL; - } - if (ret < 0) - return ret; - /* hwmon power attributes are in microWatt */ - *val = (long)msg.data_out * 1000; - return ret; -} - -static int sbrmi_write(struct device *dev, enum hwmon_sensor_types type, - u32 attr, int channel, long val) -{ - struct sbrmi_data *data = dev_get_drvdata(dev); - struct sbrmi_mailbox_msg msg = { 0 }; - - if (type != hwmon_power && attr != hwmon_power_cap) - return -EINVAL; - /* - * hwmon power attributes are in microWatt - * mailbox read/write is in mWatt - */ - val /= 1000; - - val = clamp_val(val, SBRMI_PWR_MIN, data->pwr_limit_max); - - msg.cmd = SBRMI_WRITE_PKG_PWR_LIMIT; - msg.data_in = val; - msg.read = false; - - return rmi_mailbox_xfer(data, &msg); -} - -static umode_t sbrmi_is_visible(const void *data, - enum hwmon_sensor_types type, - u32 attr, int channel) -{ - switch (type) { - case hwmon_power: - switch (attr) { - case hwmon_power_input: - case hwmon_power_cap_max: - return 0444; - case hwmon_power_cap: - return 0644; - } - break; - default: - break; - } - return 0; -} - -static const struct hwmon_channel_info * const sbrmi_info[] = { - HWMON_CHANNEL_INFO(power, - HWMON_P_INPUT | HWMON_P_CAP | HWMON_P_CAP_MAX), - NULL -}; - -static const struct hwmon_ops sbrmi_hwmon_ops = { - .is_visible = sbrmi_is_visible, - .read = sbrmi_read, - .write = sbrmi_write, -}; - -static const struct hwmon_chip_info sbrmi_chip_info = { - .ops = &sbrmi_hwmon_ops, - .info = sbrmi_info, -}; - -static int sbrmi_get_max_pwr_limit(struct sbrmi_data *data) -{ - struct sbrmi_mailbox_msg msg = { 0 }; - int ret; - - msg.cmd = SBRMI_READ_PKG_MAX_PWR_LIMIT; - msg.read = true; - ret = rmi_mailbox_xfer(data, &msg); - if (ret < 0) - return ret; - data->pwr_limit_max = msg.data_out; - - return ret; -} - -static int sbrmi_probe(struct i2c_client *client) -{ - struct device *dev = &client->dev; - struct device *hwmon_dev; - struct sbrmi_data *data; - int ret; - - data = devm_kzalloc(dev, sizeof(struct sbrmi_data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - data->client = client; - mutex_init(&data->lock); - - /* Enable alert for SB-RMI sequence */ - ret = sbrmi_enable_alert(client); - if (ret < 0) - return ret; - - /* Cache maximum power limit */ - ret = sbrmi_get_max_pwr_limit(data); - if (ret < 0) - return ret; - - hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, - &sbrmi_chip_info, NULL); - - return PTR_ERR_OR_ZERO(hwmon_dev); -} - -static const struct i2c_device_id sbrmi_id[] = { - {"sbrmi"}, - {} -}; -MODULE_DEVICE_TABLE(i2c, sbrmi_id); - -static const struct of_device_id __maybe_unused sbrmi_of_match[] = { - { - .compatible = "amd,sbrmi", - }, - { }, -}; -MODULE_DEVICE_TABLE(of, sbrmi_of_match); - -static struct i2c_driver sbrmi_driver = { - .driver = { - .name = "sbrmi", - .of_match_table = of_match_ptr(sbrmi_of_match), - }, - .probe = sbrmi_probe, - .id_table = sbrmi_id, -}; - -module_i2c_driver(sbrmi_driver); - -MODULE_AUTHOR("Akshay Gupta <akshay.gupta@amd.com>"); -MODULE_DESCRIPTION("Hwmon driver for AMD SB-RMI emulated sensor"); -MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/sg2042-mcu.c b/drivers/hwmon/sg2042-mcu.c index aa3fb773602c..105131c4acf7 100644 --- a/drivers/hwmon/sg2042-mcu.c +++ b/drivers/hwmon/sg2042-mcu.c @@ -50,12 +50,9 @@ struct sg2042_mcu_data { struct i2c_client *client; - struct dentry *debugfs; struct mutex mutex; }; -static struct dentry *sgmcu_debugfs; - static ssize_t reset_count_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -292,18 +289,15 @@ static const struct hwmon_chip_info sg2042_mcu_chip_info = { .info = sg2042_mcu_info, }; -static void sg2042_mcu_debugfs_init(struct sg2042_mcu_data *mcu, - struct device *dev) +static void sg2042_mcu_debugfs_init(struct sg2042_mcu_data *mcu) { - mcu->debugfs = debugfs_create_dir(dev_name(dev), sgmcu_debugfs); - - debugfs_create_file("firmware_version", 0444, mcu->debugfs, + debugfs_create_file("firmware_version", 0444, mcu->client->debugfs, mcu, &firmware_version_fops); - debugfs_create_file("pcb_version", 0444, mcu->debugfs, mcu, + debugfs_create_file("pcb_version", 0444, mcu->client->debugfs, mcu, &pcb_version_fops); - debugfs_create_file("mcu_type", 0444, mcu->debugfs, mcu, + debugfs_create_file("mcu_type", 0444, mcu->client->debugfs, mcu, &mcu_type_fops); - debugfs_create_file("board_type", 0444, mcu->debugfs, mcu, + debugfs_create_file("board_type", 0444, mcu->client->debugfs, mcu, &board_type_fops); } @@ -333,18 +327,11 @@ static int sg2042_mcu_i2c_probe(struct i2c_client *client) if (IS_ERR(hwmon_dev)) return PTR_ERR(hwmon_dev); - sg2042_mcu_debugfs_init(mcu, dev); + sg2042_mcu_debugfs_init(mcu); return 0; } -static void sg2042_mcu_i2c_remove(struct i2c_client *client) -{ - struct sg2042_mcu_data *mcu = i2c_get_clientdata(client); - - debugfs_remove_recursive(mcu->debugfs); -} - static const struct i2c_device_id sg2042_mcu_id[] = { { "sg2042-hwmon-mcu" }, { } @@ -364,24 +351,9 @@ static struct i2c_driver sg2042_mcu_driver = { .dev_groups = sg2042_mcu_groups, }, .probe = sg2042_mcu_i2c_probe, - .remove = sg2042_mcu_i2c_remove, .id_table = sg2042_mcu_id, }; - -static int __init sg2042_mcu_init(void) -{ - sgmcu_debugfs = debugfs_create_dir("sg2042-mcu", NULL); - return i2c_add_driver(&sg2042_mcu_driver); -} - -static void __exit sg2042_mcu_exit(void) -{ - debugfs_remove_recursive(sgmcu_debugfs); - i2c_del_driver(&sg2042_mcu_driver); -} - -module_init(sg2042_mcu_init); -module_exit(sg2042_mcu_exit); +module_i2c_driver(sg2042_mcu_driver); MODULE_AUTHOR("Inochi Amaoto <inochiama@outlook.com>"); MODULE_DESCRIPTION("MCU I2C driver for SG2042 soc platform"); diff --git a/drivers/hwmon/sht3x.c b/drivers/hwmon/sht3x.c index 650b0bcc2359..557ad3e7752a 100644 --- a/drivers/hwmon/sht3x.c +++ b/drivers/hwmon/sht3x.c @@ -44,8 +44,6 @@ static const unsigned char sht3x_cmd_read_status_reg[] = { 0xf3, 0x2d }; static const unsigned char sht3x_cmd_clear_status_reg[] = { 0x30, 0x41 }; static const unsigned char sht3x_cmd_read_serial_number[] = { 0x37, 0x80 }; -static struct dentry *debugfs; - /* delays for single-shot mode i2c commands, both in us */ #define SHT3X_SINGLE_WAIT_TIME_HPM 15000 #define SHT3X_SINGLE_WAIT_TIME_MPM 6000 @@ -167,7 +165,6 @@ struct sht3x_data { enum sht3x_chips chip_id; struct mutex i2c_lock; /* lock for sending i2c commands */ struct mutex data_lock; /* lock for updating driver data */ - struct dentry *sensor_dir; u8 mode; const unsigned char *command; @@ -837,23 +834,7 @@ static int sht3x_write(struct device *dev, enum hwmon_sensor_types type, } } -static void sht3x_debugfs_init(struct sht3x_data *data) -{ - char name[32]; - - snprintf(name, sizeof(name), "i2c%u-%02x", - data->client->adapter->nr, data->client->addr); - data->sensor_dir = debugfs_create_dir(name, debugfs); - debugfs_create_u32("serial_number", 0444, - data->sensor_dir, &data->serial_number); -} - -static void sht3x_debugfs_remove(void *sensor_dir) -{ - debugfs_remove_recursive(sensor_dir); -} - -static int sht3x_serial_number_read(struct sht3x_data *data) +static void sht3x_serial_number_read(struct sht3x_data *data) { int ret; char buffer[SHT3X_RESPONSE_LENGTH]; @@ -864,11 +845,12 @@ static int sht3x_serial_number_read(struct sht3x_data *data) buffer, SHT3X_RESPONSE_LENGTH, 0); if (ret) - return ret; + return; data->serial_number = (buffer[0] << 24) | (buffer[1] << 16) | (buffer[3] << 8) | buffer[4]; - return ret; + + debugfs_create_u32("serial_number", 0444, client->debugfs, &data->serial_number); } static const struct hwmon_ops sht3x_ops = { @@ -930,28 +912,14 @@ static int sht3x_probe(struct i2c_client *client) if (ret) return ret; - ret = sht3x_serial_number_read(data); - if (ret) { - dev_dbg(dev, "unable to read serial number\n"); - } else { - sht3x_debugfs_init(data); - ret = devm_add_action_or_reset(dev, - sht3x_debugfs_remove, - data->sensor_dir); - if (ret) - return ret; - } - - hwmon_dev = devm_hwmon_device_register_with_info(dev, - client->name, - data, - &sht3x_chip_info, - sht3x_groups); - + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, + &sht3x_chip_info, sht3x_groups); if (IS_ERR(hwmon_dev)) - dev_dbg(dev, "unable to register hwmon device\n"); + return PTR_ERR(hwmon_dev); + + sht3x_serial_number_read(data); - return PTR_ERR_OR_ZERO(hwmon_dev); + return 0; } /* device ID table */ @@ -968,20 +936,7 @@ static struct i2c_driver sht3x_i2c_driver = { .probe = sht3x_probe, .id_table = sht3x_ids, }; - -static int __init sht3x_init(void) -{ - debugfs = debugfs_create_dir("sht3x", NULL); - return i2c_add_driver(&sht3x_i2c_driver); -} -module_init(sht3x_init); - -static void __exit sht3x_cleanup(void) -{ - debugfs_remove_recursive(debugfs); - i2c_del_driver(&sht3x_i2c_driver); -} -module_exit(sht3x_cleanup); +module_i2c_driver(sht3x_i2c_driver); MODULE_AUTHOR("David Frey <david.frey@sensirion.com>"); MODULE_AUTHOR("Pascal Sachs <pascal.sachs@sensirion.com>"); diff --git a/drivers/hwmon/spd5118.c b/drivers/hwmon/spd5118.c index 6cee48a3e5c3..5da44571b6a0 100644 --- a/drivers/hwmon/spd5118.c +++ b/drivers/hwmon/spd5118.c @@ -66,6 +66,9 @@ static const unsigned short normal_i2c[] = { #define SPD5118_EEPROM_BASE 0x80 #define SPD5118_EEPROM_SIZE (SPD5118_PAGE_SIZE * SPD5118_NUM_PAGES) +#define PAGE_ADDR0(page) (((page) & BIT(0)) << 6) +#define PAGE_ADDR1_4(page) (((page) & GENMASK(4, 1)) >> 1) + /* Temperature unit in millicelsius */ #define SPD5118_TEMP_UNIT (MILLIDEGREE_PER_DEGREE / 4) /* Representable temperature range in millicelsius */ @@ -75,6 +78,7 @@ static const unsigned short normal_i2c[] = { struct spd5118_data { struct regmap *regmap; struct mutex nvmem_lock; + bool is_16bit; }; /* hwmon */ @@ -291,12 +295,6 @@ static umode_t spd5118_is_visible(const void *_data, enum hwmon_sensor_types typ } } -static inline bool spd5118_parity8(u8 w) -{ - w ^= w >> 4; - return (0x6996 >> (w & 0xf)) & 1; -} - /* * Bank and vendor id are 8-bit fields with seven data bits and odd parity. * Vendor IDs 0 and 0x7f are invalid. @@ -304,58 +302,13 @@ static inline bool spd5118_parity8(u8 w) */ static bool spd5118_vendor_valid(u8 bank, u8 id) { - if (!spd5118_parity8(bank) || !spd5118_parity8(id)) + if (parity8(bank) == 0 || parity8(id) == 0) return false; id &= 0x7f; return id && id != 0x7f; } -/* Return 0 if detection is successful, -ENODEV otherwise */ -static int spd5118_detect(struct i2c_client *client, struct i2c_board_info *info) -{ - struct i2c_adapter *adapter = client->adapter; - int regval; - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | - I2C_FUNC_SMBUS_WORD_DATA)) - return -ENODEV; - - regval = i2c_smbus_read_word_swapped(client, SPD5118_REG_TYPE); - if (regval != 0x5118) - return -ENODEV; - - regval = i2c_smbus_read_word_data(client, SPD5118_REG_VENDOR); - if (regval < 0 || !spd5118_vendor_valid(regval & 0xff, regval >> 8)) - return -ENODEV; - - regval = i2c_smbus_read_byte_data(client, SPD5118_REG_CAPABILITY); - if (regval < 0) - return -ENODEV; - if (!(regval & SPD5118_CAP_TS_SUPPORT) || (regval & 0xfc)) - return -ENODEV; - - regval = i2c_smbus_read_byte_data(client, SPD5118_REG_TEMP_CLR); - if (regval) - return -ENODEV; - regval = i2c_smbus_read_byte_data(client, SPD5118_REG_ERROR_CLR); - if (regval) - return -ENODEV; - - regval = i2c_smbus_read_byte_data(client, SPD5118_REG_REVISION); - if (regval < 0 || (regval & 0xc1)) - return -ENODEV; - - regval = i2c_smbus_read_byte_data(client, SPD5118_REG_TEMP_CONFIG); - if (regval < 0) - return -ENODEV; - if (regval & ~SPD5118_TS_DISABLE) - return -ENODEV; - - strscpy(info->type, "spd5118", I2C_NAME_SIZE); - return 0; -} - static const struct hwmon_channel_info *spd5118_info[] = { HWMON_CHANNEL_INFO(chip, HWMON_C_REGISTER_TZ), @@ -382,11 +335,12 @@ static const struct hwmon_chip_info spd5118_chip_info = { /* nvmem */ -static ssize_t spd5118_nvmem_read_page(struct regmap *regmap, char *buf, +static ssize_t spd5118_nvmem_read_page(struct spd5118_data *data, char *buf, unsigned int offset, size_t count) { - int addr = (offset >> SPD5118_PAGE_SHIFT) * 0x100 + SPD5118_EEPROM_BASE; - int err; + int page = offset >> SPD5118_PAGE_SHIFT; + struct regmap *regmap = data->regmap; + int err, addr; offset &= SPD5118_PAGE_MASK; @@ -394,6 +348,12 @@ static ssize_t spd5118_nvmem_read_page(struct regmap *regmap, char *buf, if (offset + count > SPD5118_PAGE_SIZE) count = SPD5118_PAGE_SIZE - offset; + if (data->is_16bit) { + addr = SPD5118_EEPROM_BASE | PAGE_ADDR0(page) | + (PAGE_ADDR1_4(page) << 8); + } else { + addr = page * 0x100 + SPD5118_EEPROM_BASE; + } err = regmap_bulk_read(regmap, addr + offset, buf, count); if (err) return err; @@ -416,7 +376,7 @@ static int spd5118_nvmem_read(void *priv, unsigned int off, void *val, size_t co mutex_lock(&data->nvmem_lock); while (count) { - ret = spd5118_nvmem_read_page(data->regmap, buf, off, count); + ret = spd5118_nvmem_read_page(data, buf, off, count); if (ret < 0) { mutex_unlock(&data->nvmem_lock); return ret; @@ -489,7 +449,7 @@ static bool spd5118_volatile_reg(struct device *dev, unsigned int reg) } } -static const struct regmap_range_cfg spd5118_regmap_range_cfg[] = { +static const struct regmap_range_cfg spd5118_i2c_regmap_range_cfg[] = { { .selector_reg = SPD5118_REG_I2C_LEGACY_MODE, .selector_mask = SPD5118_LEGACY_PAGE_MASK, @@ -501,7 +461,7 @@ static const struct regmap_range_cfg spd5118_regmap_range_cfg[] = { }, }; -static const struct regmap_config spd5118_regmap_config = { +static const struct regmap_config spd5118_regmap8_config = { .reg_bits = 8, .val_bits = 8, .max_register = 0x7ff, @@ -509,89 +469,76 @@ static const struct regmap_config spd5118_regmap_config = { .volatile_reg = spd5118_volatile_reg, .cache_type = REGCACHE_MAPLE, - .ranges = spd5118_regmap_range_cfg, - .num_ranges = ARRAY_SIZE(spd5118_regmap_range_cfg), + .ranges = spd5118_i2c_regmap_range_cfg, + .num_ranges = ARRAY_SIZE(spd5118_i2c_regmap_range_cfg), }; -static int spd5118_init(struct i2c_client *client) -{ - struct i2c_adapter *adapter = client->adapter; - int err, regval, mode; - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | - I2C_FUNC_SMBUS_WORD_DATA)) - return -ENODEV; +static const struct regmap_config spd5118_regmap16_config = { + .reg_bits = 16, + .val_bits = 8, + .max_register = 0x7ff, + .writeable_reg = spd5118_writeable_reg, + .volatile_reg = spd5118_volatile_reg, + .cache_type = REGCACHE_MAPLE, +}; - regval = i2c_smbus_read_word_swapped(client, SPD5118_REG_TYPE); - if (regval < 0 || (regval && regval != 0x5118)) - return -ENODEV; +static int spd5118_suspend(struct device *dev) +{ + struct spd5118_data *data = dev_get_drvdata(dev); + struct regmap *regmap = data->regmap; + u32 regval; + int err; /* - * If the device type registers return 0, it is possible that the chip - * has a non-zero page selected and takes the specification literally, - * i.e. disables access to volatile registers besides the page register - * if the page is not 0. Try to identify such chips. + * Make sure the configuration register in the regmap cache is current + * before bypassing it. */ - if (!regval) { - /* Vendor ID registers must also be 0 */ - regval = i2c_smbus_read_word_data(client, SPD5118_REG_VENDOR); - if (regval) - return -ENODEV; - - /* The selected page in MR11 must not be 0 */ - mode = i2c_smbus_read_byte_data(client, SPD5118_REG_I2C_LEGACY_MODE); - if (mode < 0 || (mode & ~SPD5118_LEGACY_MODE_MASK) || - !(mode & SPD5118_LEGACY_PAGE_MASK)) - return -ENODEV; + err = regmap_read(regmap, SPD5118_REG_TEMP_CONFIG, ®val); + if (err < 0) + return err; - err = i2c_smbus_write_byte_data(client, SPD5118_REG_I2C_LEGACY_MODE, - mode & SPD5118_LEGACY_MODE_ADDR); - if (err) - return -ENODEV; + regcache_cache_bypass(regmap, true); + regmap_update_bits(regmap, SPD5118_REG_TEMP_CONFIG, SPD5118_TS_DISABLE, + SPD5118_TS_DISABLE); + regcache_cache_bypass(regmap, false); - /* - * If the device type registers are still bad after selecting - * page 0, this is not a SPD5118 device. Restore original - * legacy mode register value and abort. - */ - regval = i2c_smbus_read_word_swapped(client, SPD5118_REG_TYPE); - if (regval != 0x5118) { - i2c_smbus_write_byte_data(client, SPD5118_REG_I2C_LEGACY_MODE, mode); - return -ENODEV; - } - } + regcache_cache_only(regmap, true); + regcache_mark_dirty(regmap); - /* We are reasonably sure that this is really a SPD5118 hub controller */ return 0; } -static int spd5118_probe(struct i2c_client *client) +static int spd5118_resume(struct device *dev) { - struct device *dev = &client->dev; - unsigned int regval, revision, vendor, bank; + struct spd5118_data *data = dev_get_drvdata(dev); + struct regmap *regmap = data->regmap; + + regcache_cache_only(regmap, false); + return regcache_sync(regmap); +} + +static DEFINE_SIMPLE_DEV_PM_OPS(spd5118_pm_ops, spd5118_suspend, spd5118_resume); + +static int spd5118_common_probe(struct device *dev, struct regmap *regmap, + bool is_16bit) +{ + unsigned int capability, revision, vendor, bank; struct spd5118_data *data; struct device *hwmon_dev; - struct regmap *regmap; int err; - err = spd5118_init(client); - if (err) - return err; - data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; - regmap = devm_regmap_init_i2c(client, &spd5118_regmap_config); - if (IS_ERR(regmap)) - return dev_err_probe(dev, PTR_ERR(regmap), "regmap init failed\n"); - - err = regmap_read(regmap, SPD5118_REG_CAPABILITY, ®val); + err = regmap_read(regmap, SPD5118_REG_CAPABILITY, &capability); if (err) return err; - if (!(regval & SPD5118_CAP_TS_SUPPORT)) + if (!(capability & SPD5118_CAP_TS_SUPPORT)) return -ENODEV; + data->is_16bit = is_16bit; + err = regmap_read(regmap, SPD5118_REG_REVISION, &revision); if (err) return err; @@ -633,48 +580,176 @@ static int spd5118_probe(struct i2c_client *client) return 0; } -static int spd5118_suspend(struct device *dev) +/* I2C */ + +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int spd5118_detect(struct i2c_client *client, struct i2c_board_info *info) { - struct spd5118_data *data = dev_get_drvdata(dev); - struct regmap *regmap = data->regmap; - u32 regval; - int err; + struct i2c_adapter *adapter = client->adapter; + int regval; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_WORD_DATA)) + return -ENODEV; + + regval = i2c_smbus_read_word_swapped(client, SPD5118_REG_TYPE); + if (regval != 0x5118) + return -ENODEV; + + regval = i2c_smbus_read_word_data(client, SPD5118_REG_VENDOR); + if (regval < 0 || !spd5118_vendor_valid(regval & 0xff, regval >> 8)) + return -ENODEV; + + regval = i2c_smbus_read_byte_data(client, SPD5118_REG_CAPABILITY); + if (regval < 0) + return -ENODEV; + if (!(regval & SPD5118_CAP_TS_SUPPORT) || (regval & 0xfc)) + return -ENODEV; + + regval = i2c_smbus_read_byte_data(client, SPD5118_REG_TEMP_CLR); + if (regval) + return -ENODEV; + regval = i2c_smbus_read_byte_data(client, SPD5118_REG_ERROR_CLR); + if (regval) + return -ENODEV; + + regval = i2c_smbus_read_byte_data(client, SPD5118_REG_REVISION); + if (regval < 0 || (regval & 0xc1)) + return -ENODEV; + + regval = i2c_smbus_read_byte_data(client, SPD5118_REG_TEMP_CONFIG); + if (regval < 0) + return -ENODEV; + if (regval & ~SPD5118_TS_DISABLE) + return -ENODEV; + + strscpy(info->type, "spd5118", I2C_NAME_SIZE); + return 0; +} + +static int spd5118_i2c_init(struct i2c_client *client) +{ + struct i2c_adapter *adapter = client->adapter; + int err, regval, mode; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_WORD_DATA)) + return -ENODEV; + + regval = i2c_smbus_read_word_swapped(client, SPD5118_REG_TYPE); + if (regval < 0 || (regval && regval != 0x5118)) + return -ENODEV; /* - * Make sure the configuration register in the regmap cache is current - * before bypassing it. + * If the device type registers return 0, it is possible that the chip + * has a non-zero page selected and takes the specification literally, + * i.e. disables access to volatile registers besides the page register + * if the page is not 0. The Renesas/ITD SPD5118 Hub Controller is known + * to show this behavior. Try to identify such chips. */ - err = regmap_read(regmap, SPD5118_REG_TEMP_CONFIG, ®val); - if (err < 0) - return err; + if (!regval) { + /* Vendor ID registers must also be 0 */ + regval = i2c_smbus_read_word_data(client, SPD5118_REG_VENDOR); + if (regval) + return -ENODEV; - regcache_cache_bypass(regmap, true); - regmap_update_bits(regmap, SPD5118_REG_TEMP_CONFIG, SPD5118_TS_DISABLE, - SPD5118_TS_DISABLE); - regcache_cache_bypass(regmap, false); + /* The selected page in MR11 must not be 0 */ + mode = i2c_smbus_read_byte_data(client, SPD5118_REG_I2C_LEGACY_MODE); + if (mode < 0 || (mode & ~SPD5118_LEGACY_MODE_MASK) || + !(mode & SPD5118_LEGACY_PAGE_MASK)) + return -ENODEV; - regcache_cache_only(regmap, true); - regcache_mark_dirty(regmap); + err = i2c_smbus_write_byte_data(client, SPD5118_REG_I2C_LEGACY_MODE, + mode & SPD5118_LEGACY_MODE_ADDR); + if (err) + return -ENODEV; + + /* + * If the device type registers are still bad after selecting + * page 0, this is not a SPD5118 device. Restore original + * legacy mode register value and abort. + */ + regval = i2c_smbus_read_word_swapped(client, SPD5118_REG_TYPE); + if (regval != 0x5118) { + i2c_smbus_write_byte_data(client, SPD5118_REG_I2C_LEGACY_MODE, mode); + return -ENODEV; + } + } + /* We are reasonably sure that this is really a SPD5118 hub controller */ return 0; } -static int spd5118_resume(struct device *dev) +/* + * 16-bit addressing note: + * + * If I2C_FUNC_I2C is not supported by an I2C adapter driver, regmap uses + * SMBus operations as alternative. To simulate a read operation with a 16-bit + * address, it writes the address using i2c_smbus_write_byte_data(), followed + * by one or more calls to i2c_smbus_read_byte() to read the data. + * Per spd5118 standard, a read operation after writing the address must start + * with <Sr> (Repeat Start). However, a SMBus read byte operation starts with + * <S> (Start). This resets the register address in the spd5118 chip. As result, + * i2c_smbus_read_byte() always returns data from register address 0x00. + * + * A working alternative to access chips with 16-bit register addresses in the + * absence of I2C_FUNC_I2C support is not known. + * + * For this reason, 16-bit addressing can only be supported with I2C if the + * adapter supports I2C_FUNC_I2C. + * + * For I2C, the addressing mode selected by the BIOS must not be changed. + * Experiments show that at least some PC BIOS versions will not change the + * addressing mode on a soft reboot and end up in setup, claiming that some + * configuration change happened. This will happen again after a power cycle, + * which does reset the addressing mode. To prevent this from happening, + * detect if 16-bit addressing is enabled and always use the currently + * configured addressing mode. + */ + +static int spd5118_i2c_probe(struct i2c_client *client) { - struct spd5118_data *data = dev_get_drvdata(dev); - struct regmap *regmap = data->regmap; + const struct regmap_config *config; + struct device *dev = &client->dev; + struct regmap *regmap; + int err, mode; + bool is_16bit; - regcache_cache_only(regmap, false); - return regcache_sync(regmap); -} + err = spd5118_i2c_init(client); + if (err) + return err; -static DEFINE_SIMPLE_DEV_PM_OPS(spd5118_pm_ops, spd5118_suspend, spd5118_resume); + mode = i2c_smbus_read_byte_data(client, SPD5118_REG_I2C_LEGACY_MODE); + if (mode < 0) + return mode; + + is_16bit = mode & SPD5118_LEGACY_MODE_ADDR; + if (is_16bit) { + /* + * See 16-bit addressing note above explaining why it is + * necessary to check for I2C_FUNC_I2C support here. + */ + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { + dev_err(dev, "Adapter does not support 16-bit register addresses\n"); + return -ENODEV; + } + config = &spd5118_regmap16_config; + } else { + config = &spd5118_regmap8_config; + } + + regmap = devm_regmap_init_i2c(client, config); + if (IS_ERR(regmap)) + return dev_err_probe(dev, PTR_ERR(regmap), "regmap init failed\n"); + + return spd5118_common_probe(dev, regmap, is_16bit); +} -static const struct i2c_device_id spd5118_id[] = { +static const struct i2c_device_id spd5118_i2c_id[] = { { "spd5118" }, { } }; -MODULE_DEVICE_TABLE(i2c, spd5118_id); +MODULE_DEVICE_TABLE(i2c, spd5118_i2c_id); static const struct of_device_id spd5118_of_ids[] = { { .compatible = "jedec,spd5118", }, @@ -682,20 +757,20 @@ static const struct of_device_id spd5118_of_ids[] = { }; MODULE_DEVICE_TABLE(of, spd5118_of_ids); -static struct i2c_driver spd5118_driver = { +static struct i2c_driver spd5118_i2c_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "spd5118", .of_match_table = spd5118_of_ids, .pm = pm_sleep_ptr(&spd5118_pm_ops), }, - .probe = spd5118_probe, - .id_table = spd5118_id, + .probe = spd5118_i2c_probe, + .id_table = spd5118_i2c_id, .detect = IS_ENABLED(CONFIG_SENSORS_SPD5118_DETECT) ? spd5118_detect : NULL, .address_list = IS_ENABLED(CONFIG_SENSORS_SPD5118_DETECT) ? normal_i2c : NULL, }; -module_i2c_driver(spd5118_driver); +module_i2c_driver(spd5118_i2c_driver); MODULE_AUTHOR("René Rebe <rene@exactcode.de>"); MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c index 8af44a33055f..a02daa496c9c 100644 --- a/drivers/hwmon/tmp102.c +++ b/drivers/hwmon/tmp102.c @@ -16,6 +16,7 @@ #include <linux/device.h> #include <linux/jiffies.h> #include <linux/regmap.h> +#include <linux/regulator/consumer.h> #include <linux/of.h> #define DRIVER_NAME "tmp102" @@ -204,6 +205,10 @@ static int tmp102_probe(struct i2c_client *client) return -ENODEV; } + err = devm_regulator_get_enable_optional(dev, "vcc"); + if (err < 0 && err != -ENODEV) + return dev_err_probe(dev, err, "Failed to enable regulator\n"); + tmp102 = devm_kzalloc(dev, sizeof(*tmp102), GFP_KERNEL); if (!tmp102) return -ENOMEM; diff --git a/drivers/hwmon/tmp108.c b/drivers/hwmon/tmp108.c index fbe673009126..a971ff628435 100644 --- a/drivers/hwmon/tmp108.c +++ b/drivers/hwmon/tmp108.c @@ -8,15 +8,15 @@ #include <linux/device.h> #include <linux/err.h> #include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/mutex.h> -#include <linux/of.h> #include <linux/i2c.h> #include <linux/i3c/device.h> #include <linux/init.h> #include <linux/jiffies.h> #include <linux/regmap.h> +#include <linux/regulator/consumer.h> #include <linux/slab.h> #define DRIVER_NAME "tmp108" @@ -331,6 +331,10 @@ static int tmp108_common_probe(struct device *dev, struct regmap *regmap, char * u32 config; int err; + err = devm_regulator_get_enable(dev, "vcc"); + if (err) + return dev_err_probe(dev, err, "Failed to enable regulator\n"); + tmp108 = devm_kzalloc(dev, sizeof(*tmp108), GFP_KERNEL); if (!tmp108) return -ENOMEM; @@ -417,25 +421,24 @@ static int tmp108_resume(struct device *dev) static DEFINE_SIMPLE_DEV_PM_OPS(tmp108_dev_pm_ops, tmp108_suspend, tmp108_resume); static const struct i2c_device_id tmp108_i2c_ids[] = { + { "p3t1085" }, { "tmp108" }, { } }; MODULE_DEVICE_TABLE(i2c, tmp108_i2c_ids); -#ifdef CONFIG_OF static const struct of_device_id tmp108_of_ids[] = { { .compatible = "nxp,p3t1085", }, { .compatible = "ti,tmp108", }, {} }; MODULE_DEVICE_TABLE(of, tmp108_of_ids); -#endif static struct i2c_driver tmp108_driver = { .driver = { .name = DRIVER_NAME, .pm = pm_sleep_ptr(&tmp108_dev_pm_ops), - .of_match_table = of_match_ptr(tmp108_of_ids), + .of_match_table = tmp108_of_ids, }, .probe = tmp108_probe, .id_table = tmp108_i2c_ids, diff --git a/drivers/hwmon/tps23861.c b/drivers/hwmon/tps23861.c index 80fb03f30c30..4cb3960d5170 100644 --- a/drivers/hwmon/tps23861.c +++ b/drivers/hwmon/tps23861.c @@ -114,7 +114,6 @@ struct tps23861_data { struct regmap *regmap; u32 shunt_resistor; struct i2c_client *client; - struct dentry *debugfs_dir; }; static const struct regmap_config tps23861_regmap_config = { @@ -503,25 +502,6 @@ static int tps23861_port_status_show(struct seq_file *s, void *data) DEFINE_SHOW_ATTRIBUTE(tps23861_port_status); -static void tps23861_init_debugfs(struct tps23861_data *data, - struct device *hwmon_dev) -{ - const char *debugfs_name; - - debugfs_name = devm_kasprintf(&data->client->dev, GFP_KERNEL, "%s-%s", - data->client->name, dev_name(hwmon_dev)); - if (!debugfs_name) - return; - - data->debugfs_dir = debugfs_create_dir(debugfs_name, NULL); - - debugfs_create_file("port_status", - 0400, - data->debugfs_dir, - data, - &tps23861_port_status_fops); -} - static int tps23861_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -562,18 +542,12 @@ static int tps23861_probe(struct i2c_client *client) if (IS_ERR(hwmon_dev)) return PTR_ERR(hwmon_dev); - tps23861_init_debugfs(data, hwmon_dev); + debugfs_create_file("port_status", 0400, client->debugfs, data, + &tps23861_port_status_fops); return 0; } -static void tps23861_remove(struct i2c_client *client) -{ - struct tps23861_data *data = i2c_get_clientdata(client); - - debugfs_remove_recursive(data->debugfs_dir); -} - static const struct of_device_id __maybe_unused tps23861_of_match[] = { { .compatible = "ti,tps23861", }, { }, @@ -582,7 +556,6 @@ MODULE_DEVICE_TABLE(of, tps23861_of_match); static struct i2c_driver tps23861_driver = { .probe = tps23861_probe, - .remove = tps23861_remove, .driver = { .name = "tps23861", .of_match_table = of_match_ptr(tps23861_of_match), diff --git a/drivers/hwmon/xgene-hwmon.c b/drivers/hwmon/xgene-hwmon.c index 7087197383c9..11c5d80428cd 100644 --- a/drivers/hwmon/xgene-hwmon.c +++ b/drivers/hwmon/xgene-hwmon.c @@ -103,9 +103,7 @@ struct xgene_hwmon_dev { struct device *hwmon_dev; bool temp_critical_alarm; - phys_addr_t comm_base_addr; - void *pcc_comm_addr; - u64 usecs_lat; + unsigned int usecs_lat; }; /* @@ -125,7 +123,8 @@ static u16 xgene_word_tst_and_clr(u16 *addr, u16 mask) static int xgene_hwmon_pcc_rd(struct xgene_hwmon_dev *ctx, u32 *msg) { - struct acpi_pcct_shared_memory *generic_comm_base = ctx->pcc_comm_addr; + struct acpi_pcct_shared_memory __iomem *generic_comm_base = + ctx->pcc_chan->shmem; u32 *ptr = (void *)(generic_comm_base + 1); int rc, i; u16 val; @@ -523,7 +522,8 @@ static void xgene_hwmon_rx_cb(struct mbox_client *cl, void *msg) static void xgene_hwmon_pcc_rx_cb(struct mbox_client *cl, void *msg) { struct xgene_hwmon_dev *ctx = to_xgene_hwmon_dev(cl); - struct acpi_pcct_shared_memory *generic_comm_base = ctx->pcc_comm_addr; + struct acpi_pcct_shared_memory __iomem *generic_comm_base = + ctx->pcc_chan->shmem; struct slimpro_resp_msg amsg; /* @@ -649,7 +649,6 @@ static int xgene_hwmon_probe(struct platform_device *pdev) } else { struct pcc_mbox_chan *pcc_chan; const struct acpi_device_id *acpi_id; - int version; acpi_id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev); @@ -658,8 +657,6 @@ static int xgene_hwmon_probe(struct platform_device *pdev) goto out_mbox_free; } - version = (int)acpi_id->driver_data; - if (device_property_read_u32(&pdev->dev, "pcc-channel", &ctx->mbox_idx)) { dev_err(&pdev->dev, "no pcc-channel property\n"); @@ -686,34 +683,6 @@ static int xgene_hwmon_probe(struct platform_device *pdev) } /* - * This is the shared communication region - * for the OS and Platform to communicate over. - */ - ctx->comm_base_addr = pcc_chan->shmem_base_addr; - if (ctx->comm_base_addr) { - if (version == XGENE_HWMON_V2) - ctx->pcc_comm_addr = (void __force *)devm_ioremap(&pdev->dev, - ctx->comm_base_addr, - pcc_chan->shmem_size); - else - ctx->pcc_comm_addr = devm_memremap(&pdev->dev, - ctx->comm_base_addr, - pcc_chan->shmem_size, - MEMREMAP_WB); - } else { - dev_err(&pdev->dev, "Failed to get PCC comm region\n"); - rc = -ENODEV; - goto out; - } - - if (IS_ERR_OR_NULL(ctx->pcc_comm_addr)) { - dev_err(&pdev->dev, - "Failed to ioremap PCC comm region\n"); - rc = -ENOMEM; - goto out; - } - - /* * pcc_chan->latency is just a Nominal value. In reality * the remote processor could be much slower to reply. * So add an arbitrary amount of wait on top of Nominal. |