* [PATCH v2 0/2] hwmon: (pmbus): Infineon IR36021 driver @ 2021-03-01 3:59 Chris Packham 2021-03-01 3:59 ` [PATCH v2 1/2] dt-bindings: trivial-devices: Add infineon,ir36021 Chris Packham 2021-03-01 3:59 ` [PATCH v2 2/2] hwmon: (pmbus): Add driver for Infineon IR36021 Chris Packham 0 siblings, 2 replies; 6+ messages in thread From: Chris Packham @ 2021-03-01 3:59 UTC (permalink / raw) To: robh+dt, jdelvare, linux Cc: devicetree, linux-hwmon, linux-kernel, Chris Packham This adds a basic driver for the IR36021. This chip as both a PMBUS and I2C interface that is available simultaenously. This driver is just the PMBUS interface. Chris Packham (2): dt-bindings: trivial-devices: Add infineon,ir36021 hwmon: (pmbus): Add driver for Infineon IR36021 .../devicetree/bindings/trivial-devices.yaml | 2 + Documentation/hwmon/index.rst | 1 + Documentation/hwmon/ir36021.rst | 62 +++++++++++++++ drivers/hwmon/pmbus/Kconfig | 9 +++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/ir36021.c | 79 +++++++++++++++++++ 6 files changed, 154 insertions(+) create mode 100644 Documentation/hwmon/ir36021.rst create mode 100644 drivers/hwmon/pmbus/ir36021.c -- 2.30.0 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 1/2] dt-bindings: trivial-devices: Add infineon,ir36021 2021-03-01 3:59 [PATCH v2 0/2] hwmon: (pmbus): Infineon IR36021 driver Chris Packham @ 2021-03-01 3:59 ` Chris Packham 2021-03-08 17:25 ` Rob Herring 2021-03-11 21:47 ` Guenter Roeck 2021-03-01 3:59 ` [PATCH v2 2/2] hwmon: (pmbus): Add driver for Infineon IR36021 Chris Packham 1 sibling, 2 replies; 6+ messages in thread From: Chris Packham @ 2021-03-01 3:59 UTC (permalink / raw) To: robh+dt, jdelvare, linux Cc: devicetree, linux-hwmon, linux-kernel, Chris Packham, Jiri Kosina Add infineon,ir36021 to trivial-devices.yaml. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> --- Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml index a327130d1faa..19bc4c301f5b 100644 --- a/Documentation/devicetree/bindings/trivial-devices.yaml +++ b/Documentation/devicetree/bindings/trivial-devices.yaml @@ -102,6 +102,8 @@ properties: - mps,mp2975 # G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface - gmt,g751 + # Infineon IR36021 digital POL buck controller + - infineon,ir36021 # Infineon IR38064 Voltage Regulator - infineon,ir38064 # Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz) -- 2.30.0 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: trivial-devices: Add infineon,ir36021 2021-03-01 3:59 ` [PATCH v2 1/2] dt-bindings: trivial-devices: Add infineon,ir36021 Chris Packham @ 2021-03-08 17:25 ` Rob Herring 2021-03-11 21:47 ` Guenter Roeck 1 sibling, 0 replies; 6+ messages in thread From: Rob Herring @ 2021-03-08 17:25 UTC (permalink / raw) To: Chris Packham Cc: jdelvare, linux, linux-hwmon, Jiri Kosina, robh+dt, linux-kernel, devicetree On Mon, 01 Mar 2021 16:59:53 +1300, Chris Packham wrote: > Add infineon,ir36021 to trivial-devices.yaml. > > Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> > --- > Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++ > 1 file changed, 2 insertions(+) > Acked-by: Rob Herring <robh@kernel.org> ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: trivial-devices: Add infineon,ir36021 2021-03-01 3:59 ` [PATCH v2 1/2] dt-bindings: trivial-devices: Add infineon,ir36021 Chris Packham 2021-03-08 17:25 ` Rob Herring @ 2021-03-11 21:47 ` Guenter Roeck 1 sibling, 0 replies; 6+ messages in thread From: Guenter Roeck @ 2021-03-11 21:47 UTC (permalink / raw) To: Chris Packham Cc: robh+dt, jdelvare, devicetree, linux-hwmon, linux-kernel, Jiri Kosina On Mon, Mar 01, 2021 at 04:59:53PM +1300, Chris Packham wrote: > Add infineon,ir36021 to trivial-devices.yaml. > > Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> > Acked-by: Rob Herring <robh@kernel.org> Applied. Thanks, Guenter > --- > Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml > index a327130d1faa..19bc4c301f5b 100644 > --- a/Documentation/devicetree/bindings/trivial-devices.yaml > +++ b/Documentation/devicetree/bindings/trivial-devices.yaml > @@ -102,6 +102,8 @@ properties: > - mps,mp2975 > # G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface > - gmt,g751 > + # Infineon IR36021 digital POL buck controller > + - infineon,ir36021 > # Infineon IR38064 Voltage Regulator > - infineon,ir38064 > # Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz) ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 2/2] hwmon: (pmbus): Add driver for Infineon IR36021 2021-03-01 3:59 [PATCH v2 0/2] hwmon: (pmbus): Infineon IR36021 driver Chris Packham 2021-03-01 3:59 ` [PATCH v2 1/2] dt-bindings: trivial-devices: Add infineon,ir36021 Chris Packham @ 2021-03-01 3:59 ` Chris Packham 2021-03-11 21:48 ` Guenter Roeck 1 sibling, 1 reply; 6+ messages in thread From: Chris Packham @ 2021-03-01 3:59 UTC (permalink / raw) To: robh+dt, jdelvare, linux Cc: devicetree, linux-hwmon, linux-kernel, Chris Packham, Jonathan Corbet, linux-doc The IR36021 is a dual‐loop digital multi‐phase buck controller. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> --- Changes in v2: - update against latest kernel for pmbus API changes - avoid double negation Documentation/hwmon/index.rst | 1 + Documentation/hwmon/ir36021.rst | 62 ++++++++++++++++++++++++++ drivers/hwmon/pmbus/Kconfig | 9 ++++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/ir36021.c | 79 +++++++++++++++++++++++++++++++++ 5 files changed, 152 insertions(+) create mode 100644 Documentation/hwmon/ir36021.rst create mode 100644 drivers/hwmon/pmbus/ir36021.c diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 8d5a2df1ecb6..b34894403c2b 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -77,6 +77,7 @@ Hardware Monitoring Kernel Drivers intel-m10-bmc-hwmon ir35221 ir38064 + ir36021 isl68137 it87 jc42 diff --git a/Documentation/hwmon/ir36021.rst b/Documentation/hwmon/ir36021.rst new file mode 100644 index 000000000000..36ef8d518b81 --- /dev/null +++ b/Documentation/hwmon/ir36021.rst @@ -0,0 +1,62 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver ir36021 +===================== + +Supported chips: + + * Infineon IR36021 + + Prefix: ir36021 + Addresses scanned: - + + Datasheet: Publicly available at the Infineon website + https://www.infineon.com/dgdl/ir36021.pdf?fileId=5546d462533600a4015355d0aa2d1775 + +Authors: + - Chris Packham <chris.packham@alliedtelesis.co.nz> + +Description +----------- + +The IR36021 is a dual‐loop digital multi‐phase buck controller designed for +point of load applications. + +Usage Notes +----------- + +This driver does not probe for PMBus devices. You will have to instantiate +devices explicitly. + +Sysfs attributes +---------------- + +======================= =========================== +curr1_label "iin" +curr1_input Measured input current +curr1_alarm Input fault alarm + +curr2_label "iout1" +curr2_input Measured output current +curr2_alarm Output over-current alarm + +in1_label "vin" +in1_input Measured input voltage +in1_alarm Input under-voltage alarm + +in2_label "vout1" +in2_input Measured output voltage +in2_alarm Output over-voltage alarm + +power1_label "pin" +power1_input Measured input power +power1_alarm Input under-voltage alarm + +power2_label "pout1" +power2_input Measured output power + +temp1_input Measured temperature +temp1_alarm Temperature alarm + +temp2_input Measured other loop temperature +temp2_alarm Temperature alarm diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 32d2fc850621..ee8c27b3b83d 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -84,6 +84,15 @@ config SENSORS_IR35221 This driver can also be built as a module. If so, the module will be called ir35221. +config SENSORS_IR36021 + tristate "Infineon IR36021" + help + If you say yes here you get hardware monitoring support for Infineon + IR36021. + + This driver can also be built as a module. If so, the module will + be called ir36021. + config SENSORS_IR38064 tristate "Infineon IR38064" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index 6a4ba0fdc1db..685a6bc2b15f 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_SENSORS_BEL_PFE) += bel-pfe.o obj-$(CONFIG_SENSORS_IBM_CFFPS) += ibm-cffps.o obj-$(CONFIG_SENSORS_INSPUR_IPSPS) += inspur-ipsps.o obj-$(CONFIG_SENSORS_IR35221) += ir35221.o +obj-$(CONFIG_SENSORS_IR36021) += ir36021.o obj-$(CONFIG_SENSORS_IR38064) += ir38064.o obj-$(CONFIG_SENSORS_IRPS5401) += irps5401.o obj-$(CONFIG_SENSORS_ISL68137) += isl68137.o diff --git a/drivers/hwmon/pmbus/ir36021.c b/drivers/hwmon/pmbus/ir36021.c new file mode 100644 index 000000000000..4767e39cc965 --- /dev/null +++ b/drivers/hwmon/pmbus/ir36021.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Hardware monitoring driver for Infineon IR36021 + * + * Copyright (c) 2021 Allied Telesis + */ +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include "pmbus.h" + +static struct pmbus_driver_info ir36021_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = linear, + .format[PSC_VOLTAGE_OUT] = linear, + .format[PSC_CURRENT_IN] = linear, + .format[PSC_CURRENT_OUT] = linear, + .format[PSC_POWER] = linear, + .format[PSC_TEMPERATURE] = linear, + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT + | PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT + | PMBUS_HAVE_PIN | PMBUS_HAVE_POUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 + | PMBUS_HAVE_STATUS_TEMP, +}; + +static int ir36021_probe(struct i2c_client *client) +{ + u8 buf[I2C_SMBUS_BLOCK_MAX]; + int ret; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_READ_BYTE_DATA + | I2C_FUNC_SMBUS_READ_WORD_DATA + | I2C_FUNC_SMBUS_READ_BLOCK_DATA)) + return -ENODEV; + + ret = i2c_smbus_read_i2c_block_data(client, PMBUS_MFR_MODEL, 2, buf); + if (ret < 0) { + dev_err(&client->dev, "Failed to read PMBUS_MFR_MODEL\n"); + return ret; + } + if (ret != 2 || buf[0] != 0x01 || buf[1] != 0x2d) { + dev_err(&client->dev, "MFR_MODEL unrecognised\n"); + return -ENODEV; + } + + return pmbus_do_probe(client, &ir36021_info); +} + +static const struct i2c_device_id ir36021_id[] = { + { "ir36021", 0 }, + {}, +}; +MODULE_DEVICE_TABLE(i2c, ir36021_id); + +static const struct of_device_id __maybe_unused ir36021_of_id[] = { + { .compatible = "infineon,ir36021" }, + {}, +}; +MODULE_DEVICE_TABLE(of, ir36021_of_id); + +static struct i2c_driver ir36021_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "ir36021", + .of_match_table = of_match_ptr(ir36021_of_id), + }, + .probe_new = ir36021_probe, + .id_table = ir36021_id, +}; + +module_i2c_driver(ir36021_driver); + +MODULE_AUTHOR("Chris Packham <chris.packham@alliedtelesis.co.nz>"); +MODULE_DESCRIPTION("PMBus driver for Infineon IR36021"); +MODULE_LICENSE("GPL"); -- 2.30.0 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2 2/2] hwmon: (pmbus): Add driver for Infineon IR36021 2021-03-01 3:59 ` [PATCH v2 2/2] hwmon: (pmbus): Add driver for Infineon IR36021 Chris Packham @ 2021-03-11 21:48 ` Guenter Roeck 0 siblings, 0 replies; 6+ messages in thread From: Guenter Roeck @ 2021-03-11 21:48 UTC (permalink / raw) To: Chris Packham Cc: robh+dt, jdelvare, devicetree, linux-hwmon, linux-kernel, Jonathan Corbet, linux-doc On Mon, Mar 01, 2021 at 04:59:54PM +1300, Chris Packham wrote: > The IR36021 is a dual‐loop digital multi‐phase buck controller. > > Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Applied. Thanks, Guenter > --- > Changes in v2: > - update against latest kernel for pmbus API changes > - avoid double negation > > Documentation/hwmon/index.rst | 1 + > Documentation/hwmon/ir36021.rst | 62 ++++++++++++++++++++++++++ > drivers/hwmon/pmbus/Kconfig | 9 ++++ > drivers/hwmon/pmbus/Makefile | 1 + > drivers/hwmon/pmbus/ir36021.c | 79 +++++++++++++++++++++++++++++++++ > 5 files changed, 152 insertions(+) > create mode 100644 Documentation/hwmon/ir36021.rst > create mode 100644 drivers/hwmon/pmbus/ir36021.c > > diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst > index 8d5a2df1ecb6..b34894403c2b 100644 > --- a/Documentation/hwmon/index.rst > +++ b/Documentation/hwmon/index.rst > @@ -77,6 +77,7 @@ Hardware Monitoring Kernel Drivers > intel-m10-bmc-hwmon > ir35221 > ir38064 > + ir36021 > isl68137 > it87 > jc42 > diff --git a/Documentation/hwmon/ir36021.rst b/Documentation/hwmon/ir36021.rst > new file mode 100644 > index 000000000000..36ef8d518b81 > --- /dev/null > +++ b/Documentation/hwmon/ir36021.rst > @@ -0,0 +1,62 @@ > +.. SPDX-License-Identifier: GPL-2.0 > + > +Kernel driver ir36021 > +===================== > + > +Supported chips: > + > + * Infineon IR36021 > + > + Prefix: ir36021 > + Addresses scanned: - > + > + Datasheet: Publicly available at the Infineon website > + https://www.infineon.com/dgdl/ir36021.pdf?fileId=5546d462533600a4015355d0aa2d1775 > + > +Authors: > + - Chris Packham <chris.packham@alliedtelesis.co.nz> > + > +Description > +----------- > + > +The IR36021 is a dual‐loop digital multi‐phase buck controller designed for > +point of load applications. > + > +Usage Notes > +----------- > + > +This driver does not probe for PMBus devices. You will have to instantiate > +devices explicitly. > + > +Sysfs attributes > +---------------- > + > +======================= =========================== > +curr1_label "iin" > +curr1_input Measured input current > +curr1_alarm Input fault alarm > + > +curr2_label "iout1" > +curr2_input Measured output current > +curr2_alarm Output over-current alarm > + > +in1_label "vin" > +in1_input Measured input voltage > +in1_alarm Input under-voltage alarm > + > +in2_label "vout1" > +in2_input Measured output voltage > +in2_alarm Output over-voltage alarm > + > +power1_label "pin" > +power1_input Measured input power > +power1_alarm Input under-voltage alarm > + > +power2_label "pout1" > +power2_input Measured output power > + > +temp1_input Measured temperature > +temp1_alarm Temperature alarm > + > +temp2_input Measured other loop temperature > +temp2_alarm Temperature alarm > diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig > index 32d2fc850621..ee8c27b3b83d 100644 > --- a/drivers/hwmon/pmbus/Kconfig > +++ b/drivers/hwmon/pmbus/Kconfig > @@ -84,6 +84,15 @@ config SENSORS_IR35221 > This driver can also be built as a module. If so, the module will > be called ir35221. > > +config SENSORS_IR36021 > + tristate "Infineon IR36021" > + help > + If you say yes here you get hardware monitoring support for Infineon > + IR36021. > + > + This driver can also be built as a module. If so, the module will > + be called ir36021. > + > config SENSORS_IR38064 > tristate "Infineon IR38064" > help > diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile > index 6a4ba0fdc1db..685a6bc2b15f 100644 > --- a/drivers/hwmon/pmbus/Makefile > +++ b/drivers/hwmon/pmbus/Makefile > @@ -11,6 +11,7 @@ obj-$(CONFIG_SENSORS_BEL_PFE) += bel-pfe.o > obj-$(CONFIG_SENSORS_IBM_CFFPS) += ibm-cffps.o > obj-$(CONFIG_SENSORS_INSPUR_IPSPS) += inspur-ipsps.o > obj-$(CONFIG_SENSORS_IR35221) += ir35221.o > +obj-$(CONFIG_SENSORS_IR36021) += ir36021.o > obj-$(CONFIG_SENSORS_IR38064) += ir38064.o > obj-$(CONFIG_SENSORS_IRPS5401) += irps5401.o > obj-$(CONFIG_SENSORS_ISL68137) += isl68137.o > diff --git a/drivers/hwmon/pmbus/ir36021.c b/drivers/hwmon/pmbus/ir36021.c > new file mode 100644 > index 000000000000..4767e39cc965 > --- /dev/null > +++ b/drivers/hwmon/pmbus/ir36021.c > @@ -0,0 +1,79 @@ > +// SPDX-License-Identifier: GPL-2.0+ > +/* > + * Hardware monitoring driver for Infineon IR36021 > + * > + * Copyright (c) 2021 Allied Telesis > + */ > +#include <linux/err.h> > +#include <linux/i2c.h> > +#include <linux/init.h> > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include "pmbus.h" > + > +static struct pmbus_driver_info ir36021_info = { > + .pages = 1, > + .format[PSC_VOLTAGE_IN] = linear, > + .format[PSC_VOLTAGE_OUT] = linear, > + .format[PSC_CURRENT_IN] = linear, > + .format[PSC_CURRENT_OUT] = linear, > + .format[PSC_POWER] = linear, > + .format[PSC_TEMPERATURE] = linear, > + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT > + | PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT > + | PMBUS_HAVE_PIN | PMBUS_HAVE_POUT > + | PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 > + | PMBUS_HAVE_STATUS_TEMP, > +}; > + > +static int ir36021_probe(struct i2c_client *client) > +{ > + u8 buf[I2C_SMBUS_BLOCK_MAX]; > + int ret; > + > + if (!i2c_check_functionality(client->adapter, > + I2C_FUNC_SMBUS_READ_BYTE_DATA > + | I2C_FUNC_SMBUS_READ_WORD_DATA > + | I2C_FUNC_SMBUS_READ_BLOCK_DATA)) > + return -ENODEV; > + > + ret = i2c_smbus_read_i2c_block_data(client, PMBUS_MFR_MODEL, 2, buf); > + if (ret < 0) { > + dev_err(&client->dev, "Failed to read PMBUS_MFR_MODEL\n"); > + return ret; > + } > + if (ret != 2 || buf[0] != 0x01 || buf[1] != 0x2d) { > + dev_err(&client->dev, "MFR_MODEL unrecognised\n"); > + return -ENODEV; > + } > + > + return pmbus_do_probe(client, &ir36021_info); > +} > + > +static const struct i2c_device_id ir36021_id[] = { > + { "ir36021", 0 }, > + {}, > +}; > +MODULE_DEVICE_TABLE(i2c, ir36021_id); > + > +static const struct of_device_id __maybe_unused ir36021_of_id[] = { > + { .compatible = "infineon,ir36021" }, > + {}, > +}; > +MODULE_DEVICE_TABLE(of, ir36021_of_id); > + > +static struct i2c_driver ir36021_driver = { > + .class = I2C_CLASS_HWMON, > + .driver = { > + .name = "ir36021", > + .of_match_table = of_match_ptr(ir36021_of_id), > + }, > + .probe_new = ir36021_probe, > + .id_table = ir36021_id, > +}; > + > +module_i2c_driver(ir36021_driver); > + > +MODULE_AUTHOR("Chris Packham <chris.packham@alliedtelesis.co.nz>"); > +MODULE_DESCRIPTION("PMBus driver for Infineon IR36021"); > +MODULE_LICENSE("GPL"); ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-03-11 21:49 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-03-01 3:59 [PATCH v2 0/2] hwmon: (pmbus): Infineon IR36021 driver Chris Packham 2021-03-01 3:59 ` [PATCH v2 1/2] dt-bindings: trivial-devices: Add infineon,ir36021 Chris Packham 2021-03-08 17:25 ` Rob Herring 2021-03-11 21:47 ` Guenter Roeck 2021-03-01 3:59 ` [PATCH v2 2/2] hwmon: (pmbus): Add driver for Infineon IR36021 Chris Packham 2021-03-11 21:48 ` Guenter Roeck
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).