PLI1209BC is a Digital Supervisor from Vicor Corporation. Signed-off-by: Marcello Sylvester Bauer <sylv@xxxxxxx> --- Documentation/hwmon/pli1209bc.rst | 73 +++++++++++++++++++ drivers/hwmon/pmbus/Kconfig | 9 +++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/pli1209bc.c | 115 ++++++++++++++++++++++++++++++ 4 files changed, 198 insertions(+) create mode 100644 Documentation/hwmon/pli1209bc.rst create mode 100644 drivers/hwmon/pmbus/pli1209bc.c diff --git a/Documentation/hwmon/pli1209bc.rst b/Documentation/hwmon/pli1209bc.rst new file mode 100644 index 000000000000..a3f686d03cf2 --- /dev/null +++ b/Documentation/hwmon/pli1209bc.rst @@ -0,0 +1,73 @@ +Kernel driver pli1209bc +======================= + +Supported chips: + + * Digital Supervisor PLI1209BC + + Prefix: 'pli1209bc' + + Addresses scanned: 0x50 - 0x5F + + Datasheet: https://www.vicorpower.com/documents/datasheets/ds-PLI1209BCxyzz-VICOR.pdf + +Authors: + - Marcello Sylvester Bauer <sylv@xxxxxxx> + +Description +----------- + +The Vicor PLI1209BC is an isolated digital power system supervisor thatprovides +a communication interface between a host processor and one Bus Converter Module +(BCM). The PLI communicates with a system controller via a PMBus compatible +interface over an isolated UART interface. Through the PLI, the host processor +can configure, set protection limits, and monitor the BCM. + +Sysfs entries +------------- + +======================= ======================================================== +in1_label "vin2" +in1_input Input voltage. +in1_rated_min Minimum rated input voltage. +in1_rated_max Maximum rated input voltage. +in1_max Maximum input voltage. +in1_max_alarm Input voltage high alarm. +in1_crit Critical input voltage. +in1_crit_alarm Input voltage critical alarm. + +in2_label "vout2" +in2_input Output voltage. +in2_rated_min Minimum rated output voltage. +in2_rated_max Maximum rated output voltage. +in2_alarm Output voltage alarm + +curr1_label "iin2" +curr1_input Input current. +curr1_max Maximum input current. +curr1_max_alarm Maximum input current high alarm. +curr1_crit Critical input current. +curr1_crit_alarm Input current critical alarm. + +curr2_label "iout2" +curr2_input Output current. +curr2_crit Critical output current. +curr2_crit_alarm Output current critical alarm. +curr2_max Maximum output current. +curr2_max_alarm Output current high alarm. + +power1_label "pin2" +power1_input Input power. +power1_alarm Input power alarm. + +power2_label "pout2" +power2_input Output power. +power2_rated_max Maximum rated output power. + +temp1_input Die temperature. +temp1_alarm Die temperature alarm. +temp1_max Maximum die temperature. +temp1_max_alarm Die temperature high alarm. +temp1_crit Critical die temperature. +temp1_crit_alarm Die temperature critical alarm. +======================= ======================================================== diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index c96f7b7338bd..831db423bea0 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -310,6 +310,15 @@ config SENSORS_PIM4328 This driver can also be built as a module. If so, the module will be called pim4328. +config SENSORS_PLI1209BC + tristate "Vicor PLI1209BC" + help + If you say yes here you get hardware monitoring support for Vicor + PLI1209BC Digital Supervisor. + + This driver can also be built as a module. If so, the module will + be called pli1209bc. + config SENSORS_PM6764TR tristate "ST PM6764TR" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index e5935f70c9e0..7ce74e3b8552 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_SENSORS_MP2888) += mp2888.o obj-$(CONFIG_SENSORS_MP2975) += mp2975.o obj-$(CONFIG_SENSORS_MP5023) += mp5023.o obj-$(CONFIG_SENSORS_PM6764TR) += pm6764tr.o +obj-$(CONFIG_SENSORS_PLI1209BC) += pli1209bc.o obj-$(CONFIG_SENSORS_PXE1610) += pxe1610.o obj-$(CONFIG_SENSORS_Q54SJ108A2) += q54sj108a2.o obj-$(CONFIG_SENSORS_STPDDC60) += stpddc60.o diff --git a/drivers/hwmon/pmbus/pli1209bc.c b/drivers/hwmon/pmbus/pli1209bc.c new file mode 100644 index 000000000000..5f8847307e55 --- /dev/null +++ b/drivers/hwmon/pmbus/pli1209bc.c @@ -0,0 +1,115 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Hardware monitoring driver for Vicor PLI1209BC Digital Supervisor + * + * Copyright (c) 2022 9elements GmbH + */ + +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/pmbus.h> +#include "pmbus.h" + +/* + * The capability command is only supported at page 0. Probing the device while + * the page register is set to 1 will falsely enable PEC support. Disable + * capability probing accordingly, since the PLI1209BC does not have any + * additional capabilities. + */ +static struct pmbus_platform_data pli1209bc_plat_data = { + .flags = PMBUS_NO_CAPABILITY, +}; + +static int pli1209bc_read_word_data(struct i2c_client *client, int page, + int phase, int reg) +{ + int data; + + switch (reg) { + /* PMBUS_READ_POUT uses a direct format with R=0 */ + case PMBUS_READ_POUT: + data = pmbus_read_word_data(client, page, phase, reg); + if (data < 0) + return data; + data = sign_extend32(data, 15) * 10; + return clamp_val(data, -32768, 32767) & 0xffff; + default: + return -ENODATA; + } +} + +static struct pmbus_driver_info pli1209bc_info = { + .pages = 2, + .format[PSC_VOLTAGE_IN] = direct, + .format[PSC_VOLTAGE_OUT] = direct, + .format[PSC_CURRENT_IN] = direct, + .format[PSC_CURRENT_OUT] = direct, + .format[PSC_POWER] = direct, + .format[PSC_TEMPERATURE] = direct, + .m[PSC_VOLTAGE_IN] = 1, + .b[PSC_VOLTAGE_IN] = 0, + .R[PSC_VOLTAGE_IN] = 1, + .m[PSC_VOLTAGE_OUT] = 1, + .b[PSC_VOLTAGE_OUT] = 0, + .R[PSC_VOLTAGE_OUT] = 1, + .m[PSC_CURRENT_IN] = 1, + .b[PSC_CURRENT_IN] = 0, + .R[PSC_CURRENT_IN] = 3, + .m[PSC_CURRENT_OUT] = 1, + .b[PSC_CURRENT_OUT] = 0, + .R[PSC_CURRENT_OUT] = 2, + .m[PSC_POWER] = 1, + .b[PSC_POWER] = 0, + .R[PSC_POWER] = 1, + .m[PSC_TEMPERATURE] = 1, + .b[PSC_TEMPERATURE] = 0, + .R[PSC_TEMPERATURE] = 0, + /* + * Page 0 sums up all attributes except voltage readings. + * The pli1209 digital supervisor only contains a single BCM, making + * page 0 redundant. + */ + .func[1] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT + | PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT + | PMBUS_HAVE_PIN | PMBUS_HAVE_POUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP + | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT, + .read_word_data = pli1209bc_read_word_data, +}; + +static int pli1209bc_probe(struct i2c_client *client) +{ + client->dev.platform_data = &pli1209bc_plat_data; + return pmbus_do_probe(client, &pli1209bc_info); +} + +static const struct i2c_device_id pli1209bc_id[] = { + {"pli1209bc", 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, pli1209bc_id); + +#ifdef CONFIG_OF +static const struct of_device_id pli1209bc_of_match[] = { + { .compatible = "vicor,pli1209bc" }, + { }, +}; +MODULE_DEVICE_TABLE(of, pli1209bc_of_match); +#endif + +static struct i2c_driver pli1209bc_driver = { + .driver = { + .name = "pli1209bc", + .of_match_table = of_match_ptr(pli1209bc_of_match), + }, + .probe_new = pli1209bc_probe, + .id_table = pli1209bc_id, +}; + +module_i2c_driver(pli1209bc_driver); + +MODULE_AUTHOR("Marcello Sylvester Bauer <sylv@xxxxxxx>"); +MODULE_DESCRIPTION("PMBus driver for Vicor PLI1209BC"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(PMBUS); -- 2.34.1
