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The MAX20860A provides monitoring of input/output=0A= voltage, output current, and temperature via the PMBus interface using=0A= linear data format. Optional regulator support is available via=0A= CONFIG_SENSORS_MAX20860A_REGULATOR.=0A= =0A= Signed-off-by: Syed Arif =0A= Signed-off-by: Sanman Pradhan =0A= ---=0A= Changes since v3:=0A= - Added optional regulator support via CONFIG_SENSORS_MAX20860A_REGULATOR= =0A= Changes since v2:=0A= - Drop "maxim,max20860a" OF match entry=0A= Changes since v1:=0A= - Removed WRITE_PROTECT write from probe=0A= =0A= Documentation/hwmon/index.rst | 1 +=0A= Documentation/hwmon/max20860a.rst | 57 ++++++++++++++++++++++++++=0A= MAINTAINERS | 8 ++++=0A= drivers/hwmon/pmbus/Kconfig | 19 +++++++++=0A= drivers/hwmon/pmbus/Makefile | 1 +=0A= drivers/hwmon/pmbus/max20860a.c | 68 +++++++++++++++++++++++++++++++=0A= 6 files changed, 154 insertions(+)=0A= create mode 100644 Documentation/hwmon/max20860a.rst=0A= create mode 100644 drivers/hwmon/pmbus/max20860a.c=0A= =0A= diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst= =0A= index e880c6ca84f0..ffaacda416e7 100644=0A= --- a/Documentation/hwmon/index.rst=0A= +++ b/Documentation/hwmon/index.rst=0A= @@ -163,6 +163,7 @@ Hardware Monitoring Kernel Drivers=0A= max20730=0A= max20751=0A= max20830=0A= + max20860a=0A= max31722=0A= max31730=0A= max31760=0A= diff --git a/Documentation/hwmon/max20860a.rst b/Documentation/hwmon/max208= 60a.rst=0A= new file mode 100644=0A= index 000000000000..ea6d2228fafc=0A= --- /dev/null=0A= +++ b/Documentation/hwmon/max20860a.rst=0A= @@ -0,0 +1,57 @@=0A= +.. SPDX-License-Identifier: GPL-2.0=0A= +=0A= +Kernel driver max20860a=0A= +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=0A= +=0A= +Supported chips:=0A= +=0A= + * Analog Devices MAX20860A=0A= +=0A= + Prefix: 'max20860a'=0A= +=0A= + Addresses scanned: -=0A= +=0A= + Datasheet: https://www.analog.com/en/products/max20860a.html=0A= +=0A= +Author:=0A= +=0A= + - Syed Arif =0A= + - Sanman Pradhan =0A= +=0A= +=0A= +Description=0A= +-----------=0A= +=0A= +This driver supports hardware monitoring for Analog Devices MAX20860A=0A= +Step-Down Switching Regulator with PMBus Interface.=0A= +=0A= +The MAX20860A is a fully integrated step-down DC-DC switching regulator.= =0A= +Through the PMBus interface, the device can monitor input/output voltages,= =0A= +output current and temperature.=0A= +=0A= +The driver is a client driver to the core PMBus driver. Please see=0A= +Documentation/hwmon/pmbus.rst for details on PMBus client drivers.=0A= +=0A= +Usage Notes=0A= +-----------=0A= +=0A= +This driver does not auto-detect devices. You will have to instantiate=0A= +the devices explicitly.=0A= +=0A= +Sysfs entries=0A= +-------------=0A= +=0A= +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=0A= +in1_label "vin"=0A= +in1_input Measured input voltage=0A= +in1_alarm Input voltage alarm=0A= +in2_label "vout1"=0A= +in2_input Measured output voltage=0A= +in2_alarm Output voltage alarm=0A= +curr1_label "iout1"=0A= +curr1_input Measured output current=0A= +curr1_alarm Output current alarm=0A= +temp1_input Measured temperature=0A= +temp1_alarm Chip temperature alarm=0A= +temp2_input Measured temperature (secondary)=0A= +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=0A= diff --git a/MAINTAINERS b/MAINTAINERS=0A= index b71acb130395..1d9651947ee3 100644=0A= --- a/MAINTAINERS=0A= +++ b/MAINTAINERS=0A= @@ -15688,6 +15688,14 @@ F: Documentation/devicetree/bindings/hwmon/pmbus/a= di,max20830.yaml=0A= F: Documentation/hwmon/max20830.rst=0A= F: drivers/hwmon/pmbus/max20830.c=0A= =0A= +MAX20860A HARDWARE MONITOR DRIVER=0A= +M: Sanman Pradhan =0A= +L: linux-hwmon@vger.kernel.org=0A= +S: Maintained=0A= +F: Documentation/devicetree/bindings/hwmon/pmbus/adi,max20860a.yaml=0A= +F: Documentation/hwmon/max20860a.rst=0A= +F: drivers/hwmon/pmbus/max20860a.c=0A= +=0A= MAX2175 SDR TUNER DRIVER=0A= M: Ramesh Shanmugasundaram =0A= L: linux-media@vger.kernel.org=0A= diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig=0A= index 64f38654f4e7..f330dc3f21fe 100644=0A= --- a/drivers/hwmon/pmbus/Kconfig=0A= +++ b/drivers/hwmon/pmbus/Kconfig=0A= @@ -402,6 +402,25 @@ config SENSORS_MAX20830=0A= This driver can also be built as a module. If so, the module will=0A= be called max20830.=0A= =0A= +config SENSORS_MAX20860A=0A= + tristate "Analog Devices MAX20860A"=0A= + help=0A= + If you say yes here you get hardware monitoring support for Analog=0A= + Devices MAX20860A step-down converter.=0A= +=0A= + This driver can also be built as a module. If so, the module will=0A= + be called max20860a.=0A= +=0A= +config SENSORS_MAX20860A_REGULATOR=0A= + bool "Regulator support for MAX20860A"=0A= + depends on SENSORS_MAX20860A && REGULATOR=0A= + help=0A= + If you say yes here you get regulator support for Analog Devices=0A= + MAX20860A step-down converter.=0A= +=0A= + This enables the MAX20860A to be used as a regulator device,=0A= + providing voltage control through the regulator framework.=0A= +=0A= config SENSORS_MAX31785=0A= tristate "Maxim MAX31785 and compatibles"=0A= help=0A= diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile=0A= index 1f2c73b71953..ffc05f493213 100644=0A= --- a/drivers/hwmon/pmbus/Makefile=0A= +++ b/drivers/hwmon/pmbus/Makefile=0A= @@ -39,6 +39,7 @@ obj-$(CONFIG_SENSORS_MAX17616) +=3D max17616.o=0A= obj-$(CONFIG_SENSORS_MAX20730) +=3D max20730.o=0A= obj-$(CONFIG_SENSORS_MAX20751) +=3D max20751.o=0A= obj-$(CONFIG_SENSORS_MAX20830) +=3D max20830.o=0A= +obj-$(CONFIG_SENSORS_MAX20860A) +=3D max20860a.o=0A= obj-$(CONFIG_SENSORS_MAX31785) +=3D max31785.o=0A= obj-$(CONFIG_SENSORS_MAX34440) +=3D max34440.o=0A= obj-$(CONFIG_SENSORS_MAX8688) +=3D max8688.o=0A= diff --git a/drivers/hwmon/pmbus/max20860a.c b/drivers/hwmon/pmbus/max20860= a.c=0A= new file mode 100644=0A= index 000000000000..905f916f6c08=0A= --- /dev/null=0A= +++ b/drivers/hwmon/pmbus/max20860a.c=0A= @@ -0,0 +1,68 @@=0A= +// SPDX-License-Identifier: GPL-2.0-or-later=0A= +/*=0A= + * Hardware monitoring driver for Analog Devices MAX20860A=0A= + *=0A= + * SPDX-FileCopyrightText: Copyright Hewlett Packard Enterprise Developmen= t LP=0A= + */=0A= +=0A= +#include =0A= +#include =0A= +#include =0A= +#include "pmbus.h"=0A= +=0A= +#if IS_ENABLED(CONFIG_SENSORS_MAX20860A_REGULATOR)=0A= +static const struct regulator_desc max20860a_reg_desc[] =3D {=0A= + PMBUS_REGULATOR_ONE("vout"),=0A= +};=0A= +#endif=0A= +=0A= +static struct pmbus_driver_info max20860a_info =3D {=0A= + .pages =3D 1,=0A= + .format[PSC_VOLTAGE_IN] =3D linear,=0A= + .format[PSC_VOLTAGE_OUT] =3D linear,=0A= + .format[PSC_CURRENT_OUT] =3D linear,=0A= + .format[PSC_TEMPERATURE] =3D linear,=0A= + .func[0] =3D PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT |=0A= + PMBUS_HAVE_STATUS_VOUT |=0A= + PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |=0A= + PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 |=0A= + PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_STATUS_INPUT,=0A= +#if IS_ENABLED(CONFIG_SENSORS_MAX20860A_REGULATOR)=0A= + .num_regulators =3D 1,=0A= + .reg_desc =3D max20860a_reg_desc,=0A= +#endif=0A= +};=0A= +=0A= +static int max20860a_probe(struct i2c_client *client)=0A= +{=0A= + return pmbus_do_probe(client, &max20860a_info);=0A= +}=0A= +=0A= +static const struct i2c_device_id max20860a_id[] =3D {=0A= + {"max20860a"},=0A= + {}=0A= +};=0A= +MODULE_DEVICE_TABLE(i2c, max20860a_id);=0A= +=0A= +static const struct of_device_id max20860a_of_match[] =3D {=0A= + { .compatible =3D "adi,max20860a" },=0A= + {}=0A= +};=0A= +MODULE_DEVICE_TABLE(of, max20860a_of_match);=0A= +=0A= +static struct i2c_driver max20860a_driver =3D {=0A= + .driver =3D {=0A= + .name =3D "max20860a",=0A= + .of_match_table =3D max20860a_of_match,=0A= + },=0A= + .probe =3D max20860a_probe,=0A= + .id_table =3D max20860a_id,=0A= +};=0A= +=0A= +module_i2c_driver(max20860a_driver);=0A= +=0A= +MODULE_AUTHOR("Syed Arif ");=0A= +MODULE_AUTHOR("Sanman Pradhan ");=0A= +MODULE_DESCRIPTION("PMBus driver for Analog Devices MAX20860A");=0A= +MODULE_LICENSE("GPL");=0A= +MODULE_IMPORT_NS("PMBUS");=0A= -- =0A= 2.34.1=0A= =0A=