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[1.34.21.66]) by smtp.gmail.com with ESMTPSA id bi2-20020a170902bf0200b001e27ad5199csm13852586plb.281.2024.04.25.08.36.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Apr 2024 08:36:38 -0700 (PDT) From: Peter Yin To: patrick@stwcx.xyz, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jean Delvare , Guenter Roeck , Jonathan Corbet , Delphine CC Chiu , Patrick Rudolph , Bjorn Helgaas , Ninad Palsule , Fabio Estevam , Lukas Wunner , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org, linux-i2c@vger.kernel.org Subject: [PATCH v2 1/2] hwmon: (pmbus) Add support for Infineon XDP710 Date: Thu, 25 Apr 2024 23:36:01 +0800 Message-Id: <20240425153608.4003782-2-peteryin.openbmc@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425153608.4003782-1-peteryin.openbmc@gmail.com> References: <20240425153608.4003782-1-peteryin.openbmc@gmail.com> Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add support for Infineon XDP710.This is a Hot-Swap Controller. Signed-off-by: Peter Yin --- Documentation/hwmon/index.rst | 1 + Documentation/hwmon/xdp710.rst | 83 +++++++++++++++++++++ drivers/hwmon/pmbus/Kconfig | 9 +++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/xdp710.c | 132 +++++++++++++++++++++++++++++++++ 5 files changed, 226 insertions(+) create mode 100644 Documentation/hwmon/xdp710.rst create mode 100644 drivers/hwmon/pmbus/xdp710.c diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 1ca7a4fe1f8f..b2546925fb15 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -250,6 +250,7 @@ Hardware Monitoring Kernel Drivers wm831x wm8350 xgene-hwmon + xdp710 xdpe12284 xdpe152c4 zl6100 diff --git a/Documentation/hwmon/xdp710.rst b/Documentation/hwmon/xdp710.rst new file mode 100644 index 000000000000..083891f27818 --- /dev/null +++ b/Documentation/hwmon/xdp710.rst @@ -0,0 +1,83 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver xdp710 +==================== + +Supported chips: + + * Infineon XDP710 + + Prefix: 'xdp710' + + * Datasheet + + Publicly available at the Infineon website : https://www.infineon.com/dgdl/Infineon-XDP710-001-DataSheet-v01_00-EN.pdf?fileId=8ac78c8c8412f8d301848a5316290b97 + +Author: + + Peter Yin + +Description +----------- + +This driver implements support for Infineon XDP710 Hot-Swap Controller. + +Device compliant with: + +- PMBus rev 1.3 interface. + +Device supports direct and linear format for reading input voltage, +output voltage, output current, input power and temperature. + +The driver exports the following attributes via the 'sysfs' files +for input voltage: + +**in1_input** + +**in1_label** + +**in1_max** + +**in1_max_alarm** + +**in1_min** + +**in1_min_alarm** + +The driver provides the following attributes for output voltage: + +**in2_input** + +**in2_label** + +**in2_alarm** + +The driver provides the following attributes for output current: + +**curr1_input** + +**curr1_label** + +**curr1_alarm** + +**curr1_max** + +The driver provides the following attributes for input power: + +**power1_input** + +**power1_label** + +**power1_alarm** + +The driver provides the following attributes for temperature: + +**temp1_input** + +**temp1_max** + +**temp1_max_alarm** + +**temp1_crit** + +**temp1_crit_alarm** diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 557ae0c414b0..c775128c2ea7 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -511,6 +511,15 @@ config SENSORS_UCD9200 This driver can also be built as a module. If so, the module will be called ucd9200. +config SENSORS_XDP710 + tristate "Infineon XDP710 family" + help + If you say yes here you get hardware monitoring support for Infineon + XDP710. + + This driver can also be built as a module. If so, the module will + be called xdp710. + config SENSORS_XDPE152 tristate "Infineon XDPE152 family" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index f14ecf03ad77..4fe630793721 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -51,6 +51,7 @@ obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o obj-$(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_XDPE122) += xdpe12284.o obj-$(CONFIG_SENSORS_XDPE152) += xdpe152c4.o obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o diff --git a/drivers/hwmon/pmbus/xdp710.c b/drivers/hwmon/pmbus/xdp710.c new file mode 100644 index 000000000000..a00f79cda5e5 --- /dev/null +++ b/drivers/hwmon/pmbus/xdp710.c @@ -0,0 +1,132 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for Infineon XDP710 Hot-Swap Controller + */ + +#include +#include +#include +#include +#include "pmbus.h" + +#define XDP710_REG_CFG 0xD3 +#define XDP710_V_SNS_CFG 0xD4 +#define XDP710_CS_RNG 0xD5 + +/* + * The table to map configuration register values + * to sense resistor values + */ +const int microOhmRsense[] = { + 200, 250, 300, 330, 400, 470, 500, 600, + 670, 700, 750, 800, 900, 1000, 1100, 1200, + 1250, 1300, 1400, 1500, 1600, 1700, 1800, 1900, + 2000, 2100, 2200, 2300, 2400, 2500, 2600, 2700, + 2800, 3000, 3100, 3200, 3300, 3400, 3500, 3600, + 3700, 3800, 3900, 4000, 4100, 4200, 4300, 4400, + 4500, 4600, 4700, 4800, 4900, 5000, 5500, 6000, + 6500, 7000, 7500, 8000, 8500, 9000, 9500, 10000 +}; + +static struct pmbus_driver_info xdp710_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, + .m[PSC_CURRENT_OUT] = 23165, + .b[PSC_CURRENT_OUT] = 0, + .R[PSC_CURRENT_OUT] = -2, + .m[PSC_POWER] = 4211, + .b[PSC_POWER] = 0, + .R[PSC_POWER] = -2, + .m[PSC_TEMPERATURE] = 52, + .b[PSC_TEMPERATURE] = 14321, + .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 xdp710_probe(struct i2c_client *client) +{ + struct pmbus_driver_info *info; + u8 cs_rng; + u8 vtlm_rng; + int rsense; + int ret; + int m = 0; + + info = devm_kmemdup(&client->dev, &xdp710_info, sizeof(*info), + GFP_KERNEL); + if (!info) + return -ENOMEM; + + ret = i2c_smbus_read_word_data(client, XDP710_CS_RNG); + if (ret < 0) { + dev_err(&client->dev, "Can't get CS_RNG"); + return ret; + } + cs_rng = (ret >> 6) & GENMASK(1, 0); + + ret = i2c_smbus_read_word_data(client, XDP710_V_SNS_CFG); + if (ret < 0) { + dev_err(&client->dev, "Can't get V_SNS_CFG"); + return ret; + } + vtlm_rng = ret & GENMASK(1, 0); + + ret = i2c_smbus_read_word_data(client, XDP710_REG_CFG); + if (ret < 0) { + dev_err(&client->dev, "Can't get REG_CFG"); + return ret; + } + ret &= GENMASK(5, 0); + rsense = microOhmRsense[ret]; + + info->m[PSC_VOLTAGE_IN] <<= vtlm_rng; + info->m[PSC_VOLTAGE_OUT] <<= vtlm_rng; + + m = info->m[PSC_CURRENT_OUT]; + info->m[PSC_CURRENT_OUT] = DIV_ROUND_CLOSEST(m * rsense >> cs_rng, + 1000); + + m = info->m[PSC_POWER]; + info->m[PSC_POWER] = DIV_ROUND_CLOSEST(m * rsense >> cs_rng, 1000); + + return pmbus_do_probe(client, info); +} + +static const struct of_device_id xdp710_of_match[] = { + { .compatible = "infineon,xdp710" }, + {} +}; + +static const struct i2c_device_id xdp710_id[] = { + {"xdp710", 0}, + { } +}; +MODULE_DEVICE_TABLE(i2c, xdp710_id); + +static struct i2c_driver xdp710_driver = { + .driver = { + .name = "xdp710", + .of_match_table = xdp710_of_match, + }, + .probe = xdp710_probe, + .id_table = xdp710_id, +}; +module_i2c_driver(xdp710_driver); + +MODULE_AUTHOR("Peter Yin "); +MODULE_DESCRIPTION("PMBus driver for XDP710 HSC"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(PMBUS); From patchwork Thu Apr 25 15:36:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: PeterYin X-Patchwork-Id: 13643500 Received: from mail-pl1-f175.google.com (mail-pl1-f175.google.com [209.85.214.175]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D18A314C585; Thu, 25 Apr 2024 15:36:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.175 ARC-Seal: i=1; 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[1.34.21.66]) by smtp.gmail.com with ESMTPSA id bi2-20020a170902bf0200b001e27ad5199csm13852586plb.281.2024.04.25.08.36.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Apr 2024 08:36:47 -0700 (PDT) From: Peter Yin To: patrick@stwcx.xyz, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jean Delvare , Guenter Roeck , Jonathan Corbet , Delphine CC Chiu , Patrick Rudolph , Luca Ceresoli , Charles Hsu , Bjorn Helgaas , Lukas Wunner , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org, linux-i2c@vger.kernel.org Subject: [PATCH v2 2/2] dt-bindings: hwmon: Add infineon xdp710 driver bindings Date: Thu, 25 Apr 2024 23:36:02 +0800 Message-Id: <20240425153608.4003782-3-peteryin.openbmc@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425153608.4003782-1-peteryin.openbmc@gmail.com> References: <20240425153608.4003782-1-peteryin.openbmc@gmail.com> Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add a device tree bindings for xdp710 device Acked-by: "Rob Herring (Arm)" Signed-off-by: Peter Yin --- 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 e07be7bf8395..f982de168c4c 100644 --- a/Documentation/devicetree/bindings/trivial-devices.yaml +++ b/Documentation/devicetree/bindings/trivial-devices.yaml @@ -134,6 +134,8 @@ properties: - infineon,irps5401 # Infineon TLV493D-A1B6 I2C 3D Magnetic Sensor - infineon,tlv493d-a1b6 + # Infineon Hot-swap controller xdp710 + - infineon,xdp710 # Infineon Multi-phase Digital VR Controller xdpe11280 - infineon,xdpe11280 # Infineon Multi-phase Digital VR Controller xdpe12254