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| -rw-r--r-- | Documentation/hwmon/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/hwmon/max17616.rst | 62 | ||||
| -rw-r--r-- | MAINTAINERS | 2 | ||||
| -rw-r--r-- | drivers/hwmon/pmbus/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/hwmon/pmbus/Makefile | 1 | ||||
| -rw-r--r-- | drivers/hwmon/pmbus/max17616.c | 73 |
6 files changed, 148 insertions, 0 deletions
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index cb3e61ddd311..bebe0e731be7 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -151,6 +151,7 @@ Hardware Monitoring Kernel Drivers max1619 max16601 max1668 + max17616 max197 max20730 max20751 diff --git a/Documentation/hwmon/max17616.rst b/Documentation/hwmon/max17616.rst new file mode 100644 index 000000000000..a3dc429048ae --- /dev/null +++ b/Documentation/hwmon/max17616.rst @@ -0,0 +1,62 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver max17616 +====================== + +Supported chips: + + * Analog Devices MAX17616/MAX17616A + + Prefix: 'max17616' + + Addresses scanned: - + + Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/max17616-max17616a.pdf + +Author: + + - Kim Seer Paller <kimseer.paller@analog.com> + + +Description +----------- + +This driver supports hardware monitoring for Analog Devices MAX17616/MAX17616A +Current-Limiter with OV/Surge, UV, Reverse Polarity, Loss of Ground Protection +with PMBus Interface. + +The MAX17616/MAX17616A is a 3V to 80V, 7A current-limiter with overvoltage, +surge, undervoltage, reverse polarity, and loss of ground protection. Through +the PMBus interface, the device can monitor input/output voltages, output current +and temperature. + +The driver is a client driver to the core PMBus driver. Please see +Documentation/hwmon/pmbus.rst for details on PMBus client drivers. + +Usage Notes +----------- + +This driver does not auto-detect devices. You will have to instantiate +the devices explicitly. Please see Documentation/i2c/instantiating-devices.rst +for details. + +Platform data support +--------------------- + +The driver supports standard PMBus driver platform data. + +Sysfs entries +------------- + +================= ======================================== +in1_label "vin" +in1_input Measured input voltage +in1_alarm Input voltage alarm +in2_label "vout1" +in2_input Measured output voltage +curr1_label "iout1" +curr1_input Measured output current. +curr1_alarm Output current alarm +temp1_input Measured temperature +temp1_alarm Chip temperature alarm +================= ======================================== diff --git a/MAINTAINERS b/MAINTAINERS index bb0f771236cc..953bf1d29a81 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15171,6 +15171,8 @@ L: linux-hwmon@vger.kernel.org S: Supported W: https://ez.analog.com/linux-software-drivers F: Documentation/devicetree/bindings/hwmon/pmbus/adi,max17616.yaml +F: Documentation/hwmon/max17616.rst +F: drivers/hwmon/pmbus/max17616.c MAX2175 SDR TUNER DRIVER M: Ramesh Shanmugasundaram <rashanmu@gmail.com> diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index e03b6271d487..408492d2230f 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -320,6 +320,15 @@ config SENSORS_MAX16601 This driver can also be built as a module. If so, the module will be called max16601. +config SENSORS_MAX17616 + tristate "Analog Devices MAX17616/MAX17616A" + help + If you say yes here you get hardware monitoring support for Analog + Devices MAX17616/MAX17616A. + + This driver can also be built as a module. If so, the module will + be called max17616. + config SENSORS_MAX20730 tristate "Maxim MAX20710, MAX20730, MAX20734, MAX20743" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index 8f8f305b4d4d..43fbc546fb5d 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -31,6 +31,7 @@ obj-$(CONFIG_SENSORS_LTC4286) += ltc4286.o obj-$(CONFIG_SENSORS_MAX15301) += max15301.o obj-$(CONFIG_SENSORS_MAX16064) += max16064.o obj-$(CONFIG_SENSORS_MAX16601) += max16601.o +obj-$(CONFIG_SENSORS_MAX17616) += max17616.o obj-$(CONFIG_SENSORS_MAX20730) += max20730.o obj-$(CONFIG_SENSORS_MAX20751) += max20751.o obj-$(CONFIG_SENSORS_MAX31785) += max31785.o diff --git a/drivers/hwmon/pmbus/max17616.c b/drivers/hwmon/pmbus/max17616.c new file mode 100644 index 000000000000..1d4a0ddb95bb --- /dev/null +++ b/drivers/hwmon/pmbus/max17616.c @@ -0,0 +1,73 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Hardware monitoring driver for Analog Devices MAX17616/MAX17616A + * + * 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" + +static struct pmbus_driver_info max17616_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = direct, + .m[PSC_VOLTAGE_IN] = 512, + .b[PSC_VOLTAGE_IN] = -18, + .R[PSC_VOLTAGE_IN] = -1, + + .format[PSC_VOLTAGE_OUT] = direct, + .m[PSC_VOLTAGE_OUT] = 512, + .b[PSC_VOLTAGE_OUT] = -18, + .R[PSC_VOLTAGE_OUT] = -1, + + .format[PSC_CURRENT_OUT] = direct, + .m[PSC_CURRENT_OUT] = 5845, + .b[PSC_CURRENT_OUT] = 80, + .R[PSC_CURRENT_OUT] = -1, + + .format[PSC_TEMPERATURE] = direct, + .m[PSC_TEMPERATURE] = 71, + .b[PSC_TEMPERATURE] = 19653, + .R[PSC_TEMPERATURE] = -1, + + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT | + PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_VOUT | + PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT | + PMBUS_HAVE_STATUS_TEMP, +}; + +static int max17616_probe(struct i2c_client *client) +{ + return pmbus_do_probe(client, &max17616_info); +} + +static const struct i2c_device_id max17616_id[] = { + { "max17616" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, max17616_id); + +static const struct of_device_id max17616_of_match[] = { + { .compatible = "adi,max17616" }, + { } +}; +MODULE_DEVICE_TABLE(of, max17616_of_match); + +static struct i2c_driver max17616_driver = { + .driver = { + .name = "max17616", + .of_match_table = max17616_of_match, + }, + .probe = max17616_probe, + .id_table = max17616_id, +}; +module_i2c_driver(max17616_driver); + +MODULE_AUTHOR("Kim Seer Paller <kimseer.paller@analog.com>"); +MODULE_DESCRIPTION("PMBus driver for Analog Devices MAX17616/MAX17616A"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); |