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hwmon: (pmbus/mp2975) Add regulator support 

Add support to expose the PMBUS regulator.

Tested on MP2973 and MP2971.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com>
Link: https://lore.kernel.org/r/20230714135124.2645339-7-Naresh.Solanki@9elements.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Patrick Rudolph 2023-07-14 15:51:15 +02:00 committed by Guenter Roeck
parent 5239277ef4
commit 88fc1efcd4
2 changed files with 22 additions and 0 deletions
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7
drivers/hwmon/pmbus/Kconfig
View File

@ -317,6 +317,13 @@ config SENSORS_MP2975
This driver can also be built as a module. If so, the module will
be called mp2975.
config SENSORS_MP2975_REGULATOR
depends on SENSORS_MP2975 && REGULATOR
bool "Regulator support for MPS MP2975"
help
If you say yes here you get regulator support for MPS MP2975
Dual Loop Digital Multi-Phase Controller.
config SENSORS_MP5023
tristate "MPS MP5023"
help

15
drivers/hwmon/pmbus/mp2975.c
View File

@ -115,6 +115,11 @@ static const struct i2c_device_id mp2975_id[] = {
MODULE_DEVICE_TABLE(i2c, mp2975_id);
static const struct regulator_desc __maybe_unused mp2975_reg_desc[] = {
PMBUS_REGULATOR("vout", 0),
PMBUS_REGULATOR("vout", 1),
};
#define to_mp2975_data(x) container_of(x, struct mp2975_data, info)
static int
@ -806,6 +811,10 @@ static struct pmbus_driver_info mp2975_info = {
PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_POUT |
PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT | PMBUS_PHASE_VIRTUAL,
.read_word_data = mp2975_read_word_data,
#if IS_ENABLED(CONFIG_SENSORS_MP2975_REGULATOR)
.num_regulators = 1,
.reg_desc = mp2975_reg_desc,
#endif
};
static struct pmbus_driver_info mp2973_info = {
@ -823,6 +832,10 @@ static struct pmbus_driver_info mp2973_info = {
PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_POUT |
PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
.read_word_data = mp2973_read_word_data,
#if IS_ENABLED(CONFIG_SENSORS_MP2975_REGULATOR)
.num_regulators = 1,
.reg_desc = mp2975_reg_desc,
#endif
};
static int mp2975_probe(struct i2c_client *client)
@ -861,6 +874,8 @@ static int mp2975_probe(struct i2c_client *client)
data->info.pages = MP2975_PAGE_NUM;
data->info.phases[1] = ret;
data->info.func[1] = MP2975_RAIL2_FUNC;
if (IS_ENABLED(CONFIG_SENSORS_MP2975_REGULATOR))
data->info.num_regulators = MP2975_PAGE_NUM;
}
if (data->chip_id == mp2975) {