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[125.228.123.29]) by smtp.gmail.com with ESMTPSA id m4-20020a170902d18400b0016ef7235e09sm147988plb.168.2022.08.16.20.21.20 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 16 Aug 2022 20:21:22 -0700 (PDT) From: Duke Du X-Google-Original-From: Duke Du To: jdelvare@suse.com, linux@roeck-us.net, corbet@lwn.net, linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: fran.hsu@quantatw.com, charles.hsu@quantatw.com, duke.du@quantatw.com Subject: [PATCH v1] hwmon: Add the pmbus driver for the TEXAS TPS546D24 Buck Converter. Date: Wed, 17 Aug 2022 11:19:19 +0800 Message-Id: <1660706359-29076-1-git-send-email-Duke.Du@quantatw.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org make the PMBUS_VOUT_MODE return value 0x17, VOUT returned value is linear11. v1: Initial patchset. Signed-off-by: Duke Du --- Documentation/hwmon/index.rst | 1 + Documentation/hwmon/tps546d24.rst | 35 +++++++++++++++++++ MAINTAINERS | 7 ++++ drivers/hwmon/pmbus/Kconfig | 9 +++++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/tps546d24.c | 73 +++++++++++++++++++++++++++++++++++++++ 6 files changed, 126 insertions(+) create mode 100644 Documentation/hwmon/tps546d24.rst create mode 100644 drivers/hwmon/pmbus/tps546d24.c diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index f7113b0..d3eede4 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -205,6 +205,7 @@ Hardware Monitoring Kernel Drivers tps23861 tps40422 tps53679 + tps546d24 twl4030-madc-hwmon ucd9000 ucd9200 diff --git a/Documentation/hwmon/tps546d24.rst b/Documentation/hwmon/tps546d24.rst new file mode 100644 index 0000000..1219013 --- /dev/null +++ b/Documentation/hwmon/tps546d24.rst @@ -0,0 +1,35 @@ +.. SPDX-License-Identifier: GPL-2.0-only + +Kernel driver tps546d24 +====================== + +Supported chips: + + * TI TPS546D24 + + Prefix: 'tps546d24' + + Addresses scanned: - + + Datasheet: https://www.ti.com/lit/gpn/tps546d24 + +Author: Duke Du + + +Description +----------- + +The TPS546D24A is a highly integrated, non-isolated DC/DC converter capable +of high frequency operation and 40-A current output from a 7-mm × 5-mm +package. + +Two, three, and four TPS546D24A devices can be interconnected +to provide up to 160 A on a single output. The device has an option to +overdrive the internal 5-V LDO with an external 5-V supply via the VDD5 +pin to improve efficiency and reduce power dissipation of the converter. + + +Platform data support +--------------------- + +The driver supports standard PMBus driver platform data. diff --git a/MAINTAINERS b/MAINTAINERS index 8a5012b..fa2d4fb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -20583,6 +20583,13 @@ Q: https://patchwork.kernel.org/project/linux-integrity/list/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git F: drivers/char/tpm/ +TPS546D24 DRIVER +M: Duke Du +L: linux-hwmon@vger.kernel.org +S: Maintained +F: Documentation/hwmon/tps546d24.rst +F: drivers/hwmon/pmbus/tps546d24.c + TRACING M: Steven Rostedt M: Ingo Molnar diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 951e4a9..89668af 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -397,6 +397,15 @@ config SENSORS_TPS53679 This driver can also be built as a module. If so, the module will be called tps53679. +config SENSORS_TPS546D24 + tristate "TPS546D24" + help + If you say yes here you get hardware monitoring support for TEXAS + TPS546D24. + + This driver can also be built as a module. If so, the module will + be called tps546d24 + config SENSORS_UCD9000 tristate "TI UCD90120, UCD90124, UCD90160, UCD90320, UCD9090, UCD90910" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index e2fe86f..0002dbe 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -41,6 +41,7 @@ obj-$(CONFIG_SENSORS_Q54SJ108A2) += q54sj108a2.o obj-$(CONFIG_SENSORS_STPDDC60) += stpddc60.o obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o obj-$(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_XDPE122) += xdpe12284.o diff --git a/drivers/hwmon/pmbus/tps546d24.c b/drivers/hwmon/pmbus/tps546d24.c new file mode 100644 index 0000000..f6f79d3 --- /dev/null +++ b/drivers/hwmon/pmbus/tps546d24.c @@ -0,0 +1,73 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Hardware monitoring driver for TEXAS TPS546D24 buck converter + */ + +#include +#include +#include +#include +#include +#include +#include "pmbus.h" + +static int tps546d24_read_byte_data(struct i2c_client *client, int page, int reg) +{ + int ret; + + switch (reg) { + case PMBUS_VOUT_MODE: + ret = 0x17; + break; + default: + ret = -ENODATA; + break; + } + return ret; +} + +static struct pmbus_driver_info tps546d24_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = linear, + .format[PSC_VOLTAGE_OUT] = linear, + .format[PSC_TEMPERATURE] = linear, + .format[PSC_CURRENT_OUT] = linear, + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN | + PMBUS_HAVE_IOUT | PMBUS_HAVE_VOUT | + PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_VOUT | + PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, + .read_byte_data = tps546d24_read_byte_data, +}; + +static int tps546d24_probe(struct i2c_client *client) +{ + return pmbus_do_probe(client, &tps546d24_info); +} + +static const struct i2c_device_id tps546d24_id[] = { + {"tps546d24", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, tps546d24_id); + +static const struct of_device_id __maybe_unused tps546d24_of_match[] = { + {.compatible = "tps546d24"}, + {} +}; + +/* This is the driver that will be inserted */ +static struct i2c_driver tps546d24_driver = { + .driver = { + .name = "tps546d24", + .of_match_table = of_match_ptr(tps546d24_of_match), + }, + .probe_new = tps546d24_probe, + .id_table = tps546d24_id, +}; + +module_i2c_driver(tps546d24_driver); + +MODULE_AUTHOR("Duke Du "); +MODULE_DESCRIPTION("PMBus driver for TI tps546d24"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(PMBUS);