On Wed, Apr 27, 2022 at 06:40:12PM +0000, Greg.Schwendimann@xxxxxxxxxxxx wrote:
> Add support for devices XDPE152C4, XDPE12584.
>
> Signed-off-by: Greg Schwendimann <Greg.Schwendimann@xxxxxxxxxxxx>
> ---
Applied.
Thanks,
Guenter
> Separated the device tree bindings documentation
> Resending from same email as Signed-off-by header
>
> Documentation/hwmon/index.rst | 1 +
> Documentation/hwmon/xdpe152c4.rst | 118 ++++++++++++++++++++++++++++++
> drivers/hwmon/pmbus/Kconfig | 9 +++
> drivers/hwmon/pmbus/Makefile | 1 +
> drivers/hwmon/pmbus/xdpe152c4.c | 75 +++++++++++++++++++
> 5 files changed, 204 insertions(+)
> create mode 100644 Documentation/hwmon/xdpe152c4.rst
> create mode 100644 drivers/hwmon/pmbus/xdpe152c4.c
>
> diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
> index 863b76289159..355c682f9ec4 100644
> --- a/Documentation/hwmon/index.rst
> +++ b/Documentation/hwmon/index.rst
> @@ -223,6 +223,7 @@ Hardware Monitoring Kernel Drivers
> wm8350
> xgene-hwmon
> xdpe12284
> + xdpe152c4
> zl6100
>
> .. only:: subproject and html
> diff --git a/Documentation/hwmon/xdpe152c4.rst b/Documentation/hwmon/xdpe152c4.rst
> new file mode 100644
> index 000000000000..ab92c32d4d69
> --- /dev/null
> +++ b/Documentation/hwmon/xdpe152c4.rst
> @@ -0,0 +1,118 @@
> +.. SPDX-License-Identifier: GPL-2.0
> +
> +Kernel driver xdpe152
> +=====================
> +
> +Supported chips:
> +
> + * Infineon XDPE152C4
> +
> + Prefix: 'xdpe152c4'
> +
> + * Infineon XDPE15284
> +
> + Prefix: 'xdpe15284'
> +
> +Authors:
> +
> + Greg Schwendimann <greg.schwendimann@xxxxxxxxxxxx>
> +
> +Description
> +-----------
> +
> +This driver implements support for Infineon Digital Multi-phase Controller
> +XDPE152C4 and XDPE15284 dual loop voltage regulators.
> +The devices are compliant with:
> +
> +- Intel VR13, VR13HC and VR14 rev 1.86
> + converter specification.
> +- Intel SVID rev 1.93. protocol.
> +- PMBus rev 1.3.1 interface.
> +
> +Devices support linear format for reading input and output voltage, input
> +and output current, input and output power and temperature.
> +
> +Devices support two pages for telemetry.
> +
> +The driver provides for current: input, maximum and critical thresholds
> +and maximum and critical alarms. Low Critical thresholds and Low critical alarm are
> +supported only for current output.
> +The driver exports the following attributes for via the sysfs files, where
> +indexes 1, 2 are for "iin" and 3, 4 for "iout":
> +
> +**curr[1-4]_crit**
> +
> +**curr[1-4]_crit_alarm**
> +
> +**curr[1-4]_input**
> +
> +**curr[1-4]_label**
> +
> +**curr[1-4]_max**
> +
> +**curr[1-4]_max_alarm**
> +
> +**curr[3-4]_lcrit**
> +
> +**curr[3-4]_lcrit_alarm**
> +
> +**curr[3-4]_rated_max**
> +
> +The driver provides for voltage: input, critical and low critical thresholds
> +and critical and low critical alarms.
> +The driver exports the following attributes for via the sysfs files, where
> +indexes 1, 2 are for "vin" and 3, 4 for "vout":
> +
> +**in[1-4]_min**
> +
> +**in[1-4]_crit**
> +
> +**in[1-4_crit_alarm**
> +
> +**in[1-4]_input**
> +
> +**in[1-4]_label**
> +
> +**in[1-4]_max**
> +
> +**in[1-4]_max_alarm**
> +
> +**in[1-4]_min**
> +
> +**in[1-4]_min_alarm**
> +
> +**in[3-4]_lcrit**
> +
> +**in[3-4]_lcrit_alarm**
> +
> +**in[3-4]_rated_max**
> +
> +**in[3-4]_rated_min**
> +
> +The driver provides for power: input and alarms.
> +The driver exports the following attributes for via the sysfs files, where
> +indexes 1, 2 are for "pin" and 3, 4 for "pout":
> +
> +**power[1-2]_alarm**
> +
> +**power[1-4]_input**
> +
> +**power[1-4]_label**
> +
> +**power[1-4]_max**
> +
> +**power[1-4]_rated_max**
> +
> +The driver provides for temperature: input, maximum and critical thresholds
> +and maximum and critical alarms.
> +The driver exports the following attributes for via the sysfs files:
> +
> +**temp[1-2]_crit**
> +
> +**temp[1-2]_crit_alarm**
> +
> +**temp[1-2]_input**
> +
> +**temp[1-2]_max**
> +
> +**temp[1-2]_max_alarm**
> diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
> index a2ea1d5a8765..fe0d0e44da4f 100644
> --- a/drivers/hwmon/pmbus/Kconfig
> +++ b/drivers/hwmon/pmbus/Kconfig
> @@ -408,6 +408,15 @@ config SENSORS_UCD9200
> This driver can also be built as a module. If so, the module will
> be called ucd9200.
>
> +config SENSORS_XDPE152
> + tristate "Infineon XDPE152 family"
> + help
> + If you say yes here you get hardware monitoring support for Infineon
> + XDPE15284, XDPE152C4, device.
> +
> + This driver can also be built as a module. If so, the module will
> + be called xdpe152c4.
> +
> config SENSORS_XDPE122
> tristate "Infineon XDPE122 family"
> help
> diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
> index a4a96ac71de7..4678fba5012c 100644
> --- a/drivers/hwmon/pmbus/Makefile
> +++ b/drivers/hwmon/pmbus/Makefile
> @@ -43,5 +43,6 @@ obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
> obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
> obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
> obj-$(CONFIG_SENSORS_XDPE122) += xdpe12284.o
> +obj-$(CONFIG_SENSORS_XDPE152) += xdpe152c4.o
> obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o
> obj-$(CONFIG_SENSORS_PIM4328) += pim4328.o
> diff --git a/drivers/hwmon/pmbus/xdpe152c4.c b/drivers/hwmon/pmbus/xdpe152c4.c
> new file mode 100644
> index 000000000000..b8a36ef73e45
> --- /dev/null
> +++ b/drivers/hwmon/pmbus/xdpe152c4.c
> @@ -0,0 +1,75 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Hardware monitoring driver for Infineon Multi-phase Digital VR Controllers
> + *
> + * Copyright (c) 2022 Infineon Technologies. All rights reserved.
> + */
> +
> +#include <linux/err.h>
> +#include <linux/i2c.h>
> +#include <linux/init.h>
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include "pmbus.h"
> +
> +#define XDPE152_PAGE_NUM 2
> +
> +static struct pmbus_driver_info xdpe152_info = {
> + .pages = XDPE152_PAGE_NUM,
> + .format[PSC_VOLTAGE_IN] = linear,
> + .format[PSC_VOLTAGE_OUT] = linear,
> + .format[PSC_TEMPERATURE] = linear,
> + .format[PSC_CURRENT_IN] = linear,
> + .format[PSC_CURRENT_OUT] = linear,
> + .format[PSC_POWER] = linear,
> + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
> + PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
> + PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP |
> + PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
> + .func[1] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
> + PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
> + PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
> +};
> +
> +static int xdpe152_probe(struct i2c_client *client)
> +{
> + struct pmbus_driver_info *info;
> +
> + info = devm_kmemdup(&client->dev, &xdpe152_info, sizeof(*info),
> + GFP_KERNEL);
> + if (!info)
> + return -ENOMEM;
> +
> + return pmbus_do_probe(client, info);
> +}
> +
> +static const struct i2c_device_id xdpe152_id[] = {
> + {"xdpe152c4", 0},
> + {"xdpe15284", 0},
> + {}
> +};
> +
> +MODULE_DEVICE_TABLE(i2c, xdpe152_id);
> +
> +static const struct of_device_id __maybe_unused xdpe152_of_match[] = {
> + {.compatible = "infineon,xdpe152c4"},
> + {.compatible = "infineon,xdpe15284"},
> + {}
> +};
> +MODULE_DEVICE_TABLE(of, xdpe152_of_match);
> +
> +static struct i2c_driver xdpe152_driver = {
> + .driver = {
> + .name = "xdpe152c4",
> + .of_match_table = of_match_ptr(xdpe152_of_match),
> + },
> + .probe_new = xdpe152_probe,
> + .id_table = xdpe152_id,
> +};
> +
> +module_i2c_driver(xdpe152_driver);
> +
> +MODULE_AUTHOR("Greg Schwendimann <greg.schwendimann@xxxxxxxxxxxx>");
> +MODULE_DESCRIPTION("PMBus driver for Infineon XDPE152 family");
> +MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(PMBUS);
