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Message-ID: <20241120035826.3920-3-cedricjustine.encarnacion@analog.com>
Date: Wed, 20 Nov 2024 11:58:26 +0800
From: Cedric Encarnacion <cedricjustine.encarnacion@...log.com>
To: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-i2c@...r.kernel.org>, <linux-doc@...r.kernel.org>,
<linux-hwmon@...r.kernel.org>
CC: Guenter Roeck <linux@...ck-us.net>, Jean Delvare <jdelvare@...e.com>,
Jonathan Corbet <corbet@....net>,
Delphine CC Chiu
<Delphine_CC_Chiu@...ynn.com>,
Rob Herring <robh@...nel.org>,
"Krzysztof
Kozlowski" <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
"Radu
Sabau" <radu.sabau@...log.com>,
Uwe Kleine-König
<u.kleine-koenig@...gutronix.de>,
Alexis Czezar Torreno
<alexisczezar.torreno@...log.com>,
Cedric Encarnacion
<cedricjustine.encarnacion@...log.com>,
Andy Shevchenko
<andriy.shevchenko@...ux.intel.com>
Subject: [PATCH 2/2] hwmon: (pmbus/adp1050): add support for adp1051, adp1055 and ltp8800
ADP1051: 6 PWM for I/O Voltage, I/O Current, Temperature
ADP1055: 6 PWM for I/O Voltage, I/O Current, Power, Temperature
LTP8800-1A/-2/-4A: 150A/135A/200A DC/DC µModule Regulator
The LTP8800 is a family of step-down μModule regulators that provides
microprocessor core voltage from 54V power distribution architecture.
LTP8800 features telemetry monitoring of input/output voltage, input
current, output power, and temperature over PMBus.
Co-developed-by: Alexis Czezar Torreno <alexisczezar.torreno@...log.com>
Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@...log.com>
Signed-off-by: Cedric Encarnacion <cedricjustine.encarnacion@...log.com>
---
Documentation/hwmon/adp1050.rst | 63 +++++++++++++++++++++++++++--
drivers/hwmon/pmbus/Kconfig | 9 +++++
drivers/hwmon/pmbus/adp1050.c | 72 +++++++++++++++++++++++++++++++--
3 files changed, 137 insertions(+), 7 deletions(-)
diff --git a/Documentation/hwmon/adp1050.rst b/Documentation/hwmon/adp1050.rst
index 8fa937064886..1692373ee5af 100644
--- a/Documentation/hwmon/adp1050.rst
+++ b/Documentation/hwmon/adp1050.rst
@@ -13,18 +13,43 @@ Supported chips:
Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1050.pdf
+ * Analog Devices ADP1051
+
+ Prefix: 'adp1051'
+
+ Addresses scanned: I2C 0x70 - 0x77
+
+ Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1051.pdf
+
+ * Analog Devices ADP1055
+
+ Prefix: 'adp1055'
+
+ Addresses scanned: I2C 0x4B - 0x77
+
+ Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1055.pdf
+
+ * Analog Devices LTP8800-1A/-2/-4A
+
+ Prefix: 'ltp8800'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/LTP8800-1A.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/LTP8800-2.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/LTP8800-4A.pdf
+
Authors:
- Radu Sabau <radu.sabau@...log.com>
-
Description
-----------
-This driver supprts hardware monitoring for Analog Devices ADP1050 Digital
-Controller for Isolated Power Supply with PMBus interface.
+This driver supports hardware monitoring for Analog Devices ADP1050, ADP1051, and
+ADP1055 Digital Controller for Isolated Power Supply with PMBus interface.
-The ADP1050 is an advanced digital controller with a PMBus™
+The ADP105X is an advanced digital controller with a PMBus™
interface targeting high density, high efficiency dc-to-dc power
conversion used to monitor system temperatures, voltages and currents.
Through the PMBus interface, the device can monitor input/output voltages,
@@ -49,16 +74,46 @@ Sysfs Attributes
in1_label "vin"
in1_input Measured input voltage
in1_alarm Input voltage alarm
+in1_crit Critical maximum input voltage
+in1_crit_alarm Input voltage high alarm
+in1_lcrit Critical minimum input voltage
+in1_lcrit_alarm Input voltage critical low alarm
in2_label "vout1"
in2_input Measured output voltage
in2_crit Critical maximum output voltage
in2_crit_alarm Output voltage high alarm
in2_lcrit Critical minimum output voltage
in2_lcrit_alarm Output voltage critical low alarm
+in2_max Critical maximum output voltage
+in2_max_alarm Output voltage critical max alarm
+in2_min Critical minimum output voltage
+in2_min_alarm Output voltage critical min alarm
curr1_label "iin"
curr1_input Measured input current.
curr1_alarm Input current alarm
+curr1_crit Critical maximum input current
+curr1_crit_alarm Input current high alarm
+curr2_label "iout1"
+curr2_input Measured output current
+curr2_alarm Output current alarm
+curr2_crit Critical maximum output current
+curr2_crit_alarm Output current high alarm
+curr2_lcrit Critical minimum output current
+curr2_lcrit_alarm Output current critical low alarm
+curr2_max Critical maximum output current
+curr2_max_alarm Output current critical max alarm
+power1_label "pout1"
+power1_input Measured output power
+power1_crit Critical maximum output power
+power1_crit_alarm Output power high alarm
temp1_input Measured temperature
temp1_crit Critical high temperature
temp1_crit_alarm Chip temperature critical high alarm
+temp1_max Critical maximum temperature
+temp1_max_alarm Temperature critical max alarm
+temp2_input Measured temperature
+temp2_crit Critical high temperature
+temp2_crit_alarm Chip temperature critical high alarm
+temp2_max Critical maximum temperature
+temp2_max_alarm Temperature critical max alarm
================= ========================================
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index f6d352841953..5d03a307824e 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -67,6 +67,15 @@ config SENSORS_ADP1050
This driver can also be built as a module. If so, the module will
be called adp1050.
+config SENSORS_ADP1050_REGULATOR
+ bool "Regulator support for ADP1050 and compatibles"
+ depends on SENSORS_ADP1050 && REGULATOR
+ help
+ If you say yes here you get regulator support for Analog Devices
+ LTP8800-1A, LTP8800-4A, and LTP8800-2. LTP8800 is a family of DC/DC
+ µModule regulators that can provide microprocessor power from 54V
+ power distribution architecture.
+
config SENSORS_BEL_PFE
tristate "Bel PFE Compatible Power Supplies"
help
diff --git a/drivers/hwmon/pmbus/adp1050.c b/drivers/hwmon/pmbus/adp1050.c
index 20f22730fc01..46f2dda8adbb 100644
--- a/drivers/hwmon/pmbus/adp1050.c
+++ b/drivers/hwmon/pmbus/adp1050.c
@@ -11,6 +11,12 @@
#include "pmbus.h"
+#if IS_ENABLED(CONFIG_SENSORS_ADP1050_REGULATOR)
+static const struct regulator_desc adp1050_reg_desc[] = {
+ PMBUS_REGULATOR_ONE("vout"),
+};
+#endif /* CONFIG_SENSORS_ADP1050_REGULATOR */
+
static struct pmbus_driver_info adp1050_info = {
.pages = 1,
.format[PSC_VOLTAGE_IN] = linear,
@@ -23,19 +29,79 @@ static struct pmbus_driver_info adp1050_info = {
| PMBUS_HAVE_STATUS_TEMP,
};
+static struct pmbus_driver_info adp1051_info = {
+ .pages = 1,
+ .format[PSC_VOLTAGE_IN] = linear,
+ .format[PSC_VOLTAGE_OUT] = linear,
+ .format[PSC_CURRENT_IN] = linear,
+ .format[PSC_TEMPERATURE] = linear,
+ .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN
+ | 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 struct pmbus_driver_info adp1055_info = {
+ .pages = 1,
+ .format[PSC_VOLTAGE_IN] = linear,
+ .format[PSC_VOLTAGE_OUT] = linear,
+ .format[PSC_CURRENT_IN] = linear,
+ .format[PSC_TEMPERATURE] = linear,
+ .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN
+ | PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT
+ | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_TEMP3
+ | PMBUS_HAVE_POUT
+ | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT
+ | PMBUS_HAVE_STATUS_INPUT
+ | PMBUS_HAVE_STATUS_TEMP,
+};
+
+static struct pmbus_driver_info ltp8800_info = {
+ .pages = 1,
+ .format[PSC_VOLTAGE_IN] = linear,
+ .format[PSC_VOLTAGE_OUT] = linear,
+ .format[PSC_CURRENT_IN] = linear,
+ .format[PSC_TEMPERATURE] = linear,
+ .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN
+ | PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT
+ | PMBUS_HAVE_TEMP
+ | PMBUS_HAVE_POUT
+ | PMBUS_HAVE_STATUS_VOUT
+ | PMBUS_HAVE_STATUS_INPUT
+ | PMBUS_HAVE_STATUS_TEMP,
+#if IS_ENABLED(CONFIG_SENSORS_ADP1050_REGULATOR)
+ .num_regulators = 1,
+ .reg_desc = adp1050_reg_desc,
+#endif
+};
+
static int adp1050_probe(struct i2c_client *client)
{
- return pmbus_do_probe(client, &adp1050_info);
+ const struct pmbus_driver_info *info;
+
+ info = device_get_match_data(&client->dev);
+ if (!info)
+ return -ENODEV;
+
+ return pmbus_do_probe(client, info);
}
static const struct i2c_device_id adp1050_id[] = {
- {"adp1050"},
+ { .name = "adp1050", .driver_data = (kernel_ulong_t)&adp1050_info},
+ { .name = "adp1051", .driver_data = (kernel_ulong_t)&adp1051_info},
+ { .name = "adp1055", .driver_data = (kernel_ulong_t)&adp1055_info},
+ { .name = "ltp8800", .driver_data = (kernel_ulong_t)<p8800_info},
{}
};
MODULE_DEVICE_TABLE(i2c, adp1050_id);
static const struct of_device_id adp1050_of_match[] = {
- { .compatible = "adi,adp1050"},
+ { .compatible = "adi,adp1050", .data = &adp1050_info},
+ { .compatible = "adi,adp1051", .data = &adp1051_info},
+ { .compatible = "adi,adp1055", .data = &adp1055_info},
+ { .compatible = "adi,ltp8800", .data = <p8800_info},
{}
};
MODULE_DEVICE_TABLE(of, adp1050_of_match);
--
2.39.5
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