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author | 2020-12-02 14:11:04 +0800 | |
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committer | 2020-12-07 07:59:37 -0800 | |
commit | 7537862a90b8b9106d42ad2f53de2b96fd1673c5 (patch) | |
tree | 281e71d5cd5594a5d4cb993682d964fbb3888131 /drivers/hwmon/pmbus | |
parent | hwmon: (nct6683) Support NCT6687D. (diff) | |
download | linux-7537862a90b8b9106d42ad2f53de2b96fd1673c5.tar.gz linux-7537862a90b8b9106d42ad2f53de2b96fd1673c5.tar.bz2 linux-7537862a90b8b9106d42ad2f53de2b96fd1673c5.zip |
hwmon: Add driver for STMicroelectronics PM6764 Voltage Regulator
Add the pmbus driver for the STMicroelectronics pm6764 voltage regulator.
the output voltage use the MFR_READ_VOUT 0xD4
vout value returned is linear11
Signed-off-by: Charles Hsu <hsu.yungteng@gmail.com>
[groeck: Fixed various compile errors; marked pm6764tr_of_match __maybe_unused]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/pmbus')
-rw-r--r-- | drivers/hwmon/pmbus/Kconfig | 9 | ||||
-rw-r--r-- | drivers/hwmon/pmbus/Makefile | 1 | ||||
-rw-r--r-- | drivers/hwmon/pmbus/pm6764tr.c | 75 |
3 files changed, 85 insertions, 0 deletions
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index a25faf69fce3..9c846facce9f 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -220,6 +220,15 @@ config SENSORS_MP2975 This driver can also be built as a module. If so, the module will be called mp2975. +config SENSORS_PM6764TR + tristate "ST PM6764TR" + help + If you say yes here you get hardware monitoring support for ST + PM6764TR. + + This driver can also be built as a module. If so, the module will + be called pm6764tr. + config SENSORS_PXE1610 tristate "Infineon PXE1610" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index 4c97ad0bd791..31ebdef5d4a6 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_SENSORS_MAX31785) += max31785.o obj-$(CONFIG_SENSORS_MAX34440) += max34440.o obj-$(CONFIG_SENSORS_MAX8688) += max8688.o obj-$(CONFIG_SENSORS_MP2975) += mp2975.o +obj-$(CONFIG_SENSORS_PM6764TR) += pm6764tr.o obj-$(CONFIG_SENSORS_PXE1610) += pxe1610.o obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o diff --git a/drivers/hwmon/pmbus/pm6764tr.c b/drivers/hwmon/pmbus/pm6764tr.c new file mode 100644 index 000000000000..d97cb6d6c87f --- /dev/null +++ b/drivers/hwmon/pmbus/pm6764tr.c @@ -0,0 +1,75 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Hardware monitoring driver for STMicroelectronics digital controller PM6764TR + */ + +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/pmbus.h> +#include "pmbus.h" + +#define PM6764TR_PMBUS_READ_VOUT 0xD4 + +static int pm6764tr_read_word_data(struct i2c_client *client, int page, int phase, int reg) +{ + int ret; + + switch (reg) { + case PMBUS_VIRT_READ_VMON: + ret = pmbus_read_word_data(client, page, phase, PM6764TR_PMBUS_READ_VOUT); + break; + default: + ret = -ENODATA; + break; + } + return ret; +} + +static struct pmbus_driver_info pm6764tr_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = linear, + .format[PSC_VOLTAGE_OUT] = vid, + .format[PSC_TEMPERATURE] = linear, + .format[PSC_CURRENT_OUT] = linear, + .format[PSC_POWER] = linear, + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN | PMBUS_HAVE_PIN | + PMBUS_HAVE_IOUT | PMBUS_HAVE_POUT | PMBUS_HAVE_VMON | + PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_VOUT | + PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP, + .read_word_data = pm6764tr_read_word_data, +}; + +static int pm6764tr_probe(struct i2c_client *client) +{ + return pmbus_do_probe(client, &pm6764tr_info); +} + +static const struct i2c_device_id pm6764tr_id[] = { + {"pm6764tr", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, pm6764tr_id); + +static const struct of_device_id __maybe_unused pm6764tr_of_match[] = { + {.compatible = "st,pm6764tr"}, + {} +}; + +/* This is the driver that will be inserted */ +static struct i2c_driver pm6764tr_driver = { + .driver = { + .name = "pm6764tr", + .of_match_table = of_match_ptr(pm6764tr_of_match), + }, + .probe_new = pm6764tr_probe, + .id_table = pm6764tr_id, +}; + +module_i2c_driver(pm6764tr_driver); + +MODULE_AUTHOR("Charles Hsu"); +MODULE_DESCRIPTION("PMBus driver for ST PM6764TR"); +MODULE_LICENSE("GPL"); |