* [PATCH v4 0/2] Add support for Infineon Digital eFuse XDP720 @ 2026-04-10 7:01 ASHISH YADAV 2026-04-10 7:01 ` [PATCH v4 1/2] dt-bindings: hwmon/pmbus: Add Infineon XDP720 ASHISH YADAV 2026-04-10 7:01 ` [PATCH v4 2/2] hwmon:(pmbus/xdp720) Add support for efuse xdp720 ASHISH YADAV 0 siblings, 2 replies; 6+ messages in thread From: ASHISH YADAV @ 2026-04-10 7:01 UTC (permalink / raw) To: Guenter Roeck, Rob Herring, Krzysztof Kozlowski, Conor Dooley Cc: linux-hwmon, devicetree, linux-kernel, Ashish Yadav From: Ashish Yadav <ashish.yadav@infineon.com> Hi, These patches add support for Infineon Digital eFuse XDP720. XDP720 provides accurate system telemetry (V, I, P, T) and reports analog current at the IMON pin for post-processing. The Current and Power measurement depends on the RIMON and GIMON values. Please look into data sheet sections 5.4.2 and 5.4.4 for more details: https://www.infineon.com/assets/row/public/documents/24/49/infineon-xdp720-001-datasheet-en.pdf With Best Regards, Ashish Yadav --- Changes in v4: - Link to v3: https://lore.kernel.org/all/20260406101647.109667-1-Ashish.Yadav@infineon.com/ - Fix commit msg for devicetree binding patch. https://lore.kernel.org/all/20260407-monumental-mastiff-of-sunshine-fb27ab@quoll/ Changes in v3: - Link to v2: https://lore.kernel.org/all/20260401104550.115715-1-Ashish.Yadav@infineon.com/ - Fix commit msg, added missing supply info in devicetree binding document. https://lore.kernel.org/all/20260402-enlightened-analytic-leopard-ddc512@quoll/ - Fix .m[PSC_POWER] value issue.The divisor value is 10^15 rather than 10^12. - Added devm_regulator_get_enable(). https://lore.kernel.org/all/258dd77a-a8d9-4540-a32a-91a3f13c6ed5@roeck-us.net/ Changes in v2: - Link to v1: https://lore.kernel.org/all/20260330102345.37065-1-Ashish.Yadav@infineon.com/ - Fix make dt_binding_check issue: https://patchwork.kernel.org/project/devicetree/patch/20260330102345.37065-2-Ashish.Yadav@infineon.com/ - Address reviews comments for infineon,xdp720.yaml, Kconfig, Makefile and xpe720.c: https://sashiko.dev/#/patchset/20260330102345.37065-1-Ashish.Yadav%40infineon.com It includes fixing of extra space, non-ASCII characters and use spaces instead of tabs. The xpe720.c driver file update with DIV64_U64_ROUND_CLOSEST() and MODULE_DEVICE_TABLE() as suggested in review comments. Ashish Yadav (2): dt-bindings: hwmon/pmbus: Add Infineon XDP720 hwmon:(pmbus/xdp720) Add support for efuse xdp720 .../bindings/hwmon/pmbus/infineon,xdp720.yaml | 59 ++++++++ drivers/hwmon/pmbus/Kconfig | 9 ++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/xdp720.c | 128 ++++++++++++++++++ 4 files changed, 197 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/pmbus/infineon,xdp720.yaml create mode 100644 drivers/hwmon/pmbus/xdp720.c -- 2.39.5 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v4 1/2] dt-bindings: hwmon/pmbus: Add Infineon XDP720 2026-04-10 7:01 [PATCH v4 0/2] Add support for Infineon Digital eFuse XDP720 ASHISH YADAV @ 2026-04-10 7:01 ` ASHISH YADAV 2026-04-10 17:57 ` Conor Dooley 2026-04-10 21:19 ` Guenter Roeck 2026-04-10 7:01 ` [PATCH v4 2/2] hwmon:(pmbus/xdp720) Add support for efuse xdp720 ASHISH YADAV 1 sibling, 2 replies; 6+ messages in thread From: ASHISH YADAV @ 2026-04-10 7:01 UTC (permalink / raw) To: Guenter Roeck, Rob Herring, Krzysztof Kozlowski, Conor Dooley Cc: linux-hwmon, devicetree, linux-kernel, Ashish Yadav From: Ashish Yadav <ashish.yadav@infineon.com> Add documentation for the device tree binding of the XDP720 eFuse. Signed-off-by: Ashish Yadav <ashish.yadav@infineon.com> --- .../bindings/hwmon/pmbus/infineon,xdp720.yaml | 59 +++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/pmbus/infineon,xdp720.yaml diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/infineon,xdp720.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/infineon,xdp720.yaml new file mode 100644 index 000000000000..72bc3a5e7139 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/pmbus/infineon,xdp720.yaml @@ -0,0 +1,59 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- + +$id: http://devicetree.org/schemas/hwmon/pmbus/infineon,xdp720.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Infineon XDP720 Digital eFuse Controller + +maintainers: + - Ashish Yadav <ashish.yadav@infineon.com> + +description: | + The XDP720 is an eFuse with integrated current sensor and digital + controller. It provides accurate system telemetry (V, I, P, T) and + reports analog current at the IMON pin for post-processing. + + Datasheet: + https://www.infineon.com/assets/row/public/documents/24/49/infineon-xdp720-001-datasheet-en.pdf + +properties: + compatible: + enum: + - infineon,xdp720 + + reg: + maxItems: 1 + + infineon,rimon-micro-ohms: + description: + The value of the RIMON resistor, in micro ohms, required to enable + the system overcurrent protection. + + vdd-vin-supply: + description: + Supply for the VDD_VIN pin (pin 9), the IC controller power supply. + Typically connected to the input bus (VIN) through a 100 ohm / 100 nF + RC filter. + +required: + - compatible + - reg + - vdd-vin-supply + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + hwmon@11 { + compatible = "infineon,xdp720"; + reg = <0x11>; + vdd-vin-supply = <&vdd_vin>; + infineon,rimon-micro-ohms = <1098000000>; /* 1.098k ohm */ + }; + }; -- 2.39.5 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v4 1/2] dt-bindings: hwmon/pmbus: Add Infineon XDP720 2026-04-10 7:01 ` [PATCH v4 1/2] dt-bindings: hwmon/pmbus: Add Infineon XDP720 ASHISH YADAV @ 2026-04-10 17:57 ` Conor Dooley 2026-04-10 21:19 ` Guenter Roeck 1 sibling, 0 replies; 6+ messages in thread From: Conor Dooley @ 2026-04-10 17:57 UTC (permalink / raw) To: ASHISH YADAV Cc: Guenter Roeck, Rob Herring, Krzysztof Kozlowski, Conor Dooley, linux-hwmon, devicetree, linux-kernel, Ashish Yadav [-- Attachment #1: Type: text/plain, Size: 329 bytes --] On Fri, Apr 10, 2026 at 12:31:53PM +0530, ASHISH YADAV wrote: > From: Ashish Yadav <ashish.yadav@infineon.com> > > Add documentation for the device tree binding of the XDP720 eFuse. > > Signed-off-by: Ashish Yadav <ashish.yadav@infineon.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> pw-bot: not-applicable [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 228 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v4 1/2] dt-bindings: hwmon/pmbus: Add Infineon XDP720 2026-04-10 7:01 ` [PATCH v4 1/2] dt-bindings: hwmon/pmbus: Add Infineon XDP720 ASHISH YADAV 2026-04-10 17:57 ` Conor Dooley @ 2026-04-10 21:19 ` Guenter Roeck 1 sibling, 0 replies; 6+ messages in thread From: Guenter Roeck @ 2026-04-10 21:19 UTC (permalink / raw) To: ASHISH YADAV Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, linux-hwmon, devicetree, linux-kernel, Ashish Yadav On Fri, Apr 10, 2026 at 12:31:53PM +0530, ASHISH YADAV wrote: > From: Ashish Yadav <ashish.yadav@infineon.com> > > Add documentation for the device tree binding of the XDP720 eFuse. > > Signed-off-by: Ashish Yadav <ashish.yadav@infineon.com> > Acked-by: Conor Dooley <conor.dooley@microchip.com> Applied. Thanks, Guenter ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v4 2/2] hwmon:(pmbus/xdp720) Add support for efuse xdp720 2026-04-10 7:01 [PATCH v4 0/2] Add support for Infineon Digital eFuse XDP720 ASHISH YADAV 2026-04-10 7:01 ` [PATCH v4 1/2] dt-bindings: hwmon/pmbus: Add Infineon XDP720 ASHISH YADAV @ 2026-04-10 7:01 ` ASHISH YADAV 2026-04-10 21:20 ` Guenter Roeck 1 sibling, 1 reply; 6+ messages in thread From: ASHISH YADAV @ 2026-04-10 7:01 UTC (permalink / raw) To: Guenter Roeck, Rob Herring, Krzysztof Kozlowski, Conor Dooley Cc: linux-hwmon, devicetree, linux-kernel, Ashish Yadav From: Ashish Yadav <ashish.yadav@infineon.com> Add the pmbus driver for Infineon XDP720 Digital eFuse Controller. Signed-off-by: Ashish Yadav <ashish.yadav@infineon.com> --- XDP720 Digital eFuse Controller provides accurate system telemetry (V, I, P, T) and reports analog current at the IMON pin for post-processing. The Current and Power measurement depends on the RIMON and GIMON values. Please look into data sheet sections 5.4.2 and 5.4.4 for more details: https://www.infineon.com/assets/row/public/documents/24/49/infineon-xdp720-001-datasheet-en.pdf The GIMON (microA/A) depends on the 10th bit of TELEMETRY_AVG PMBUS Register. The value of RIMON (kohm) can be provided by the user through device tree using infineon,rimon-micro-ohms property. --- drivers/hwmon/pmbus/Kconfig | 9 +++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/xdp720.c | 128 +++++++++++++++++++++++++++++++++++ 3 files changed, 138 insertions(+) create mode 100644 drivers/hwmon/pmbus/xdp720.c diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index fc1273abe357..c419e3ecce90 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -702,6 +702,15 @@ config SENSORS_XDP710 This driver can also be built as a module. If so, the module will be called xdp710. +config SENSORS_XDP720 + tristate "Infineon XDP720 family" + help + If you say yes here you get hardware monitoring support for Infineon + XDP720. + + This driver can also be built as a module. If so, the module will + be called xdp720. + config SENSORS_XDPE152 tristate "Infineon XDPE152 family" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index d6c86924f887..1cac7ccae79f 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -68,6 +68,7 @@ obj-$(CONFIG_SENSORS_TPS546D24) += tps546d24.o obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o obj-$(CONFIG_SENSORS_XDP710) += xdp710.o +obj-$(CONFIG_SENSORS_XDP720) += xdp720.o obj-$(CONFIG_SENSORS_XDPE122) += xdpe12284.o obj-$(CONFIG_SENSORS_XDPE152) += xdpe152c4.o obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o diff --git a/drivers/hwmon/pmbus/xdp720.c b/drivers/hwmon/pmbus/xdp720.c new file mode 100644 index 000000000000..8729a771f216 --- /dev/null +++ b/drivers/hwmon/pmbus/xdp720.c @@ -0,0 +1,128 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Hardware monitoring driver for Infineon XDP720 Digital eFuse Controller + * + * Copyright (c) 2026 Infineon Technologies. All rights reserved. + */ + +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/of_device.h> +#include <linux/bitops.h> +#include <linux/math64.h> +#include "pmbus.h" + +/* + * The IMON resistor required to generate the system overcurrent protection. + * Arbitrary default Rimon value: 2k Ohm + */ +#define XDP720_DEFAULT_RIMON 2000000000 /* 2k ohm */ +#define XDP720_TELEMETRY_AVG 0xE9 + +static struct pmbus_driver_info xdp720_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = direct, + .format[PSC_VOLTAGE_OUT] = direct, + .format[PSC_CURRENT_OUT] = direct, + .format[PSC_POWER] = direct, + .format[PSC_TEMPERATURE] = direct, + + .m[PSC_VOLTAGE_IN] = 4653, + .b[PSC_VOLTAGE_IN] = 0, + .R[PSC_VOLTAGE_IN] = -2, + .m[PSC_VOLTAGE_OUT] = 4653, + .b[PSC_VOLTAGE_OUT] = 0, + .R[PSC_VOLTAGE_OUT] = -2, + /* + * Current and Power measurement depends on the RIMON (kOhm) and + * GIMON(microA/A) values. + */ + .m[PSC_CURRENT_OUT] = 24668, + .b[PSC_CURRENT_OUT] = 0, + .R[PSC_CURRENT_OUT] = -4, + .m[PSC_POWER] = 4486, + .b[PSC_POWER] = 0, + .R[PSC_POWER] = -1, + .m[PSC_TEMPERATURE] = 54, + .b[PSC_TEMPERATURE] = 22521, + .R[PSC_TEMPERATURE] = -1, + + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_PIN | + PMBUS_HAVE_TEMP | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_INPUT | + PMBUS_HAVE_STATUS_TEMP, +}; + +static int xdp720_probe(struct i2c_client *client) +{ + struct pmbus_driver_info *info; + int ret; + u32 rimon; + int gimon; + + info = devm_kmemdup(&client->dev, &xdp720_info, sizeof(*info), + GFP_KERNEL); + if (!info) + return -ENOMEM; + + ret = devm_regulator_get_enable(&client->dev, "vdd-vin"); + if (ret) + return dev_err_probe(&client->dev, ret, + "failed to enable vdd-vin supply\n"); + + ret = i2c_smbus_read_word_data(client, XDP720_TELEMETRY_AVG); + if (ret < 0) { + dev_err(&client->dev, "Can't get TELEMETRY_AVG\n"); + return ret; + } + + ret >>= 10; /* 10th bit of TELEMETRY_AVG REG for GIMON Value */ + ret &= GENMASK(0, 0); + if (ret == 1) + gimon = 18200; /* output gain 18.2 microA/A */ + else + gimon = 9100; /* output gain 9.1 microA/A */ + + if (of_property_read_u32(client->dev.of_node, + "infineon,rimon-micro-ohms", &rimon)) + rimon = XDP720_DEFAULT_RIMON; /* Default if not set via DT */ + if (rimon == 0) + return -EINVAL; + + /* Adapt the current and power scale for each instance */ + info->m[PSC_CURRENT_OUT] = DIV64_U64_ROUND_CLOSEST((u64) + info->m[PSC_CURRENT_OUT] * rimon * gimon, 1000000000000ULL); + info->m[PSC_POWER] = DIV64_U64_ROUND_CLOSEST((u64) + info->m[PSC_POWER] * rimon * gimon, 1000000000000000ULL); + + return pmbus_do_probe(client, info); +} + +static const struct of_device_id xdp720_of_match[] = { + { .compatible = "infineon,xdp720" }, + {} +}; +MODULE_DEVICE_TABLE(of, xdp720_of_match); + +static const struct i2c_device_id xdp720_id[] = { + { "xdp720" }, + {} +}; +MODULE_DEVICE_TABLE(i2c, xdp720_id); + +static struct i2c_driver xdp720_driver = { + .driver = { + .name = "xdp720", + .of_match_table = xdp720_of_match, + }, + .probe = xdp720_probe, + .id_table = xdp720_id, +}; + +module_i2c_driver(xdp720_driver); + +MODULE_AUTHOR("Ashish Yadav <ashish.yadav@infineon.com>"); +MODULE_DESCRIPTION("PMBus driver for Infineon XDP720 Digital eFuse Controller"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); -- 2.39.5 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v4 2/2] hwmon:(pmbus/xdp720) Add support for efuse xdp720 2026-04-10 7:01 ` [PATCH v4 2/2] hwmon:(pmbus/xdp720) Add support for efuse xdp720 ASHISH YADAV @ 2026-04-10 21:20 ` Guenter Roeck 0 siblings, 0 replies; 6+ messages in thread From: Guenter Roeck @ 2026-04-10 21:20 UTC (permalink / raw) To: ASHISH YADAV Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, linux-hwmon, devicetree, linux-kernel, Ashish Yadav On Fri, Apr 10, 2026 at 12:31:54PM +0530, ASHISH YADAV wrote: > From: Ashish Yadav <ashish.yadav@infineon.com> > > Add the pmbus driver for Infineon XDP720 Digital eFuse Controller. > > Signed-off-by: Ashish Yadav <ashish.yadav@infineon.com> Applied. Thanks, Guenter > --- > XDP720 Digital eFuse Controller provides accurate system telemetry > (V, I, P, T) and reports analog current at the IMON pin for post-processing. > > The Current and Power measurement depends on the RIMON and GIMON values. > Please look into data sheet sections 5.4.2 and 5.4.4 for more details: > https://www.infineon.com/assets/row/public/documents/24/49/infineon-xdp720-001-datasheet-en.pdf > > The GIMON (microA/A) depends on the 10th bit of TELEMETRY_AVG PMBUS Register. > The value of RIMON (kohm) can be provided by the user through device tree using > infineon,rimon-micro-ohms property. > --- > drivers/hwmon/pmbus/Kconfig | 9 +++ > drivers/hwmon/pmbus/Makefile | 1 + > drivers/hwmon/pmbus/xdp720.c | 128 +++++++++++++++++++++++++++++++++++ > 3 files changed, 138 insertions(+) > create mode 100644 drivers/hwmon/pmbus/xdp720.c > > diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig > index fc1273abe357..c419e3ecce90 100644 > --- a/drivers/hwmon/pmbus/Kconfig > +++ b/drivers/hwmon/pmbus/Kconfig > @@ -702,6 +702,15 @@ config SENSORS_XDP710 > This driver can also be built as a module. If so, the module will > be called xdp710. > > +config SENSORS_XDP720 > + tristate "Infineon XDP720 family" > + help > + If you say yes here you get hardware monitoring support for Infineon > + XDP720. > + > + This driver can also be built as a module. If so, the module will > + be called xdp720. > + > config SENSORS_XDPE152 > tristate "Infineon XDPE152 family" > help > diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile > index d6c86924f887..1cac7ccae79f 100644 > --- a/drivers/hwmon/pmbus/Makefile > +++ b/drivers/hwmon/pmbus/Makefile > @@ -68,6 +68,7 @@ obj-$(CONFIG_SENSORS_TPS546D24) += tps546d24.o > obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o > obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o > obj-$(CONFIG_SENSORS_XDP710) += xdp710.o > +obj-$(CONFIG_SENSORS_XDP720) += xdp720.o > obj-$(CONFIG_SENSORS_XDPE122) += xdpe12284.o > obj-$(CONFIG_SENSORS_XDPE152) += xdpe152c4.o > obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o > diff --git a/drivers/hwmon/pmbus/xdp720.c b/drivers/hwmon/pmbus/xdp720.c > new file mode 100644 > index 000000000000..8729a771f216 > --- /dev/null > +++ b/drivers/hwmon/pmbus/xdp720.c > @@ -0,0 +1,128 @@ > +// SPDX-License-Identifier: GPL-2.0+ > +/* > + * Hardware monitoring driver for Infineon XDP720 Digital eFuse Controller > + * > + * Copyright (c) 2026 Infineon Technologies. All rights reserved. > + */ > + > +#include <linux/i2c.h> > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/kernel.h> > +#include <linux/of_device.h> > +#include <linux/bitops.h> > +#include <linux/math64.h> > +#include "pmbus.h" > + > +/* > + * The IMON resistor required to generate the system overcurrent protection. > + * Arbitrary default Rimon value: 2k Ohm > + */ > +#define XDP720_DEFAULT_RIMON 2000000000 /* 2k ohm */ > +#define XDP720_TELEMETRY_AVG 0xE9 > + > +static struct pmbus_driver_info xdp720_info = { > + .pages = 1, > + .format[PSC_VOLTAGE_IN] = direct, > + .format[PSC_VOLTAGE_OUT] = direct, > + .format[PSC_CURRENT_OUT] = direct, > + .format[PSC_POWER] = direct, > + .format[PSC_TEMPERATURE] = direct, > + > + .m[PSC_VOLTAGE_IN] = 4653, > + .b[PSC_VOLTAGE_IN] = 0, > + .R[PSC_VOLTAGE_IN] = -2, > + .m[PSC_VOLTAGE_OUT] = 4653, > + .b[PSC_VOLTAGE_OUT] = 0, > + .R[PSC_VOLTAGE_OUT] = -2, > + /* > + * Current and Power measurement depends on the RIMON (kOhm) and > + * GIMON(microA/A) values. > + */ > + .m[PSC_CURRENT_OUT] = 24668, > + .b[PSC_CURRENT_OUT] = 0, > + .R[PSC_CURRENT_OUT] = -4, > + .m[PSC_POWER] = 4486, > + .b[PSC_POWER] = 0, > + .R[PSC_POWER] = -1, > + .m[PSC_TEMPERATURE] = 54, > + .b[PSC_TEMPERATURE] = 22521, > + .R[PSC_TEMPERATURE] = -1, > + > + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_PIN | > + PMBUS_HAVE_TEMP | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_INPUT | > + PMBUS_HAVE_STATUS_TEMP, > +}; > + > +static int xdp720_probe(struct i2c_client *client) > +{ > + struct pmbus_driver_info *info; > + int ret; > + u32 rimon; > + int gimon; > + > + info = devm_kmemdup(&client->dev, &xdp720_info, sizeof(*info), > + GFP_KERNEL); > + if (!info) > + return -ENOMEM; > + > + ret = devm_regulator_get_enable(&client->dev, "vdd-vin"); > + if (ret) > + return dev_err_probe(&client->dev, ret, > + "failed to enable vdd-vin supply\n"); > + > + ret = i2c_smbus_read_word_data(client, XDP720_TELEMETRY_AVG); > + if (ret < 0) { > + dev_err(&client->dev, "Can't get TELEMETRY_AVG\n"); > + return ret; > + } > + > + ret >>= 10; /* 10th bit of TELEMETRY_AVG REG for GIMON Value */ > + ret &= GENMASK(0, 0); > + if (ret == 1) > + gimon = 18200; /* output gain 18.2 microA/A */ > + else > + gimon = 9100; /* output gain 9.1 microA/A */ > + > + if (of_property_read_u32(client->dev.of_node, > + "infineon,rimon-micro-ohms", &rimon)) > + rimon = XDP720_DEFAULT_RIMON; /* Default if not set via DT */ > + if (rimon == 0) > + return -EINVAL; > + > + /* Adapt the current and power scale for each instance */ > + info->m[PSC_CURRENT_OUT] = DIV64_U64_ROUND_CLOSEST((u64) > + info->m[PSC_CURRENT_OUT] * rimon * gimon, 1000000000000ULL); > + info->m[PSC_POWER] = DIV64_U64_ROUND_CLOSEST((u64) > + info->m[PSC_POWER] * rimon * gimon, 1000000000000000ULL); > + > + return pmbus_do_probe(client, info); > +} > + > +static const struct of_device_id xdp720_of_match[] = { > + { .compatible = "infineon,xdp720" }, > + {} > +}; > +MODULE_DEVICE_TABLE(of, xdp720_of_match); > + > +static const struct i2c_device_id xdp720_id[] = { > + { "xdp720" }, > + {} > +}; > +MODULE_DEVICE_TABLE(i2c, xdp720_id); > + > +static struct i2c_driver xdp720_driver = { > + .driver = { > + .name = "xdp720", > + .of_match_table = xdp720_of_match, > + }, > + .probe = xdp720_probe, > + .id_table = xdp720_id, > +}; > + > +module_i2c_driver(xdp720_driver); > + > +MODULE_AUTHOR("Ashish Yadav <ashish.yadav@infineon.com>"); > +MODULE_DESCRIPTION("PMBus driver for Infineon XDP720 Digital eFuse Controller"); > +MODULE_LICENSE("GPL"); > +MODULE_IMPORT_NS("PMBUS"); ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2026-04-10 21:20 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2026-04-10 7:01 [PATCH v4 0/2] Add support for Infineon Digital eFuse XDP720 ASHISH YADAV 2026-04-10 7:01 ` [PATCH v4 1/2] dt-bindings: hwmon/pmbus: Add Infineon XDP720 ASHISH YADAV 2026-04-10 17:57 ` Conor Dooley 2026-04-10 21:19 ` Guenter Roeck 2026-04-10 7:01 ` [PATCH v4 2/2] hwmon:(pmbus/xdp720) Add support for efuse xdp720 ASHISH YADAV 2026-04-10 21:20 ` Guenter Roeck
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