Messages in this thread Patch in this message | | | From | Charles Hsu <> | Date | Thu, 22 Oct 2020 20:00:07 +0800 | Subject | [PATCH] hwmon: (pmbus) Add driver for STMicroelectronics PM6764TR Voltage Regulator |
| |
Add the pmbus driver for the STMicroelectronics pm6764tr voltage regulator.
Signed-off-by: Charles Hsu <hsu.yungteng@gmail.com> --- drivers/hwmon/pmbus/Kconfig | 8 ++++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/pm6764tr.c | 76 ++++++++++++++++++++++++++++++++++ 3 files changed, 85 insertions(+) create mode 100644 drivers/hwmon/pmbus/pm6764tr.c
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index a25faf69fce3..e976997ee163 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -287,4 +287,12 @@ config SENSORS_ZL6100 This driver can also be built as a module. If so, the module will be called zl6100.
+config SENSORS_PM6764TR + tristate "PM6764TR" + help + If you say yes here you get hardware monitoring support for PM6764TR. + + This driver can also be built as a module. If so, the module will + be called pm6764tr. + endif # PMBUS diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index 4c97ad0bd791..bb89fcf9544d 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -32,3 +32,4 @@ obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o obj-$(CONFIG_SENSORS_XDPE122) += xdpe12284.o obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o +obj-$(CONFIG_SENSORS_PM6764TR) += pm6764tr.o \ No newline at end of file diff --git a/drivers/hwmon/pmbus/pm6764tr.c b/drivers/hwmon/pmbus/pm6764tr.c new file mode 100644 index 000000000000..e03b1441268e --- /dev/null +++ b/drivers/hwmon/pmbus/pm6764tr.c @@ -0,0 +1,76 @@ +// SPDX-License-Identifier: GPL-2.0-or-later + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/mutex.h> +#include <linux/i2c.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 reg) +{ + int ret; + + switch (reg) { + case PMBUS_VIRT_READ_VMON: + ret = pmbus_read_word_data(client, page, + 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, + const struct i2c_device_id *id) +{ + return pmbus_do_probe(client, id, &pm6764tr_info); +} + +static const struct i2c_device_id pm6764tr_id[] = { + {"pm6764tr", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, pm6764tr_id); + +static const struct of_device_id pm6764tr_of_match[] = { + {.compatible = "pm6764tr"}, + {} +}; + +static struct i2c_driver pm6764tr_driver = { + .driver = { + .name = "pm6764tr", + .of_match_table = of_match_ptr(pm6764tr_of_match), + }, + .probe = pm6764tr_probe, + .remove = pmbus_do_remove, + .id_table = pm6764tr_id, +}; + +module_i2c_driver(pm6764tr_driver); + +MODULE_AUTHOR("Charles Hsu"); +MODULE_DESCRIPTION("PMBus driver for ST PM6764TR"); +MODULE_LICENSE("GPL"); -- 2.25.1
| |