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hwmon: (pmbus/core) Add min_uV in pmbus regulator helper macro 

Some regulator operates in a range of voltage which should not allow
below the lower threshold.

Signed-off-by: Saravanan Sekar <saravanan@linumiz.com>
Link: https://lore.kernel.org/r/20221207173716.123223-2-saravanan@linumiz.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Saravanan Sekar 2022-12-07 18:37:13 +01:00 committed by Guenter Roeck
parent bc7fabde40
commit b52acefcf7
2 changed files with 11 additions and 10 deletions
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16
drivers/hwmon/pmbus/ltc2978.c
View File

@ -570,14 +570,14 @@ MODULE_DEVICE_TABLE(i2c, ltc2978_id);
#define LTC2978_N_VOLTAGES ((LTC2978_MAX_UV / LTC2978_UV_STEP) + 1)
static const struct regulator_desc ltc2978_reg_desc[] = {
PMBUS_REGULATOR_STEP("vout", 0, LTC2978_N_VOLTAGES, LTC2978_UV_STEP),
PMBUS_REGULATOR_STEP("vout", 1, LTC2978_N_VOLTAGES, LTC2978_UV_STEP),
PMBUS_REGULATOR_STEP("vout", 2, LTC2978_N_VOLTAGES, LTC2978_UV_STEP),
PMBUS_REGULATOR_STEP("vout", 3, LTC2978_N_VOLTAGES, LTC2978_UV_STEP),
PMBUS_REGULATOR_STEP("vout", 4, LTC2978_N_VOLTAGES, LTC2978_UV_STEP),
PMBUS_REGULATOR_STEP("vout", 5, LTC2978_N_VOLTAGES, LTC2978_UV_STEP),
PMBUS_REGULATOR_STEP("vout", 6, LTC2978_N_VOLTAGES, LTC2978_UV_STEP),
PMBUS_REGULATOR_STEP("vout", 7, LTC2978_N_VOLTAGES, LTC2978_UV_STEP),
PMBUS_REGULATOR_STEP("vout", 0, LTC2978_N_VOLTAGES, LTC2978_UV_STEP, 0),
PMBUS_REGULATOR_STEP("vout", 1, LTC2978_N_VOLTAGES, LTC2978_UV_STEP, 0),
PMBUS_REGULATOR_STEP("vout", 2, LTC2978_N_VOLTAGES, LTC2978_UV_STEP, 0),
PMBUS_REGULATOR_STEP("vout", 3, LTC2978_N_VOLTAGES, LTC2978_UV_STEP, 0),
PMBUS_REGULATOR_STEP("vout", 4, LTC2978_N_VOLTAGES, LTC2978_UV_STEP, 0),
PMBUS_REGULATOR_STEP("vout", 5, LTC2978_N_VOLTAGES, LTC2978_UV_STEP, 0),
PMBUS_REGULATOR_STEP("vout", 6, LTC2978_N_VOLTAGES, LTC2978_UV_STEP, 0),
PMBUS_REGULATOR_STEP("vout", 7, LTC2978_N_VOLTAGES, LTC2978_UV_STEP, 0),
};
static const struct regulator_desc ltc2978_reg_desc_default[] = {

5
drivers/hwmon/pmbus/pmbus.h
View File

@ -464,7 +464,7 @@ struct pmbus_driver_info {
extern const struct regulator_ops pmbus_regulator_ops;
/* Macros for filling in array of struct regulator_desc */
#define PMBUS_REGULATOR_STEP(_name, _id, _voltages, _step) \
#define PMBUS_REGULATOR_STEP(_name, _id, _voltages, _step, _min_uV) \
[_id] = { \
.name = (_name # _id), \
.id = (_id), \
@ -475,9 +475,10 @@ extern const struct regulator_ops pmbus_regulator_ops;
.owner = THIS_MODULE, \
.n_voltages = _voltages, \
.uV_step = _step, \
.min_uV = _min_uV, \
}
#define PMBUS_REGULATOR(_name, _id) PMBUS_REGULATOR_STEP(_name, _id, 0, 0)
#define PMBUS_REGULATOR(_name, _id) PMBUS_REGULATOR_STEP(_name, _id, 0, 0, 0)
/* Function declarations */