From: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx>
Add support to expose the PMBUS regulator.
Tested on MP2973 and MP2971.
Signed-off-by: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx>
Signed-off-by: Naresh Solanki <Naresh.Solanki@xxxxxxxxxxxxx>
---
Changes in V2:
- Use IS_ENABLED for configs in if statement.
---
drivers/hwmon/pmbus/Kconfig | 7 +++++++
drivers/hwmon/pmbus/mp2975.c | 15 +++++++++++++++
2 files changed, 22 insertions(+)
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 270b6336b76d..b4e93bd5835e 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -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
diff --git a/drivers/hwmon/pmbus/mp2975.c b/drivers/hwmon/pmbus/mp2975.c
index 4d72ed18cc8c..7684f8667657 100644
--- a/drivers/hwmon/pmbus/mp2975.c
+++ b/drivers/hwmon/pmbus/mp2975.c
@@ -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) {
--
2.41.0
