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hwmon: (pmbus/pli1209bc) Add regulator support 

Add regulator support for PLI1209BC Digital Supervisor.

Signed-off-by: Marcello Sylvester Bauer <sylv@sylv.io>
Link: https://lore.kernel.org/r/21b0cdb6dd72654effa451d3b1636ecd07b160e9.1645435888.git.sylv@sylv.io
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Marcello Sylvester Bauer 2022-02-21 10:42:07 +01:00 committed by Guenter Roeck
parent d0cd978513
commit ba1d263af1
2 changed files with 38 additions and 0 deletions
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7
drivers/hwmon/pmbus/Kconfig
View File

@ -326,6 +326,13 @@ config SENSORS_PLI1209BC
This driver can also be built as a module. If so, the module will
be called pli1209bc.
config SENSORS_PLI1209BC_REGULATOR
bool "Regulator support for PLI1209BC"
depends on SENSORS_PLI1209BC && REGULATOR
help
If you say yes here you get regulator support for Vicor PLI1209BC
Digital Supervisor.
config SENSORS_PM6764TR
tristate "ST PM6764TR"
help

31
drivers/hwmon/pmbus/pli1209bc.c
View File

@ -8,6 +8,7 @@
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pmbus.h>
#include <linux/regulator/driver.h>
#include "pmbus.h"
/*
@ -33,11 +34,37 @@ static int pli1209bc_read_word_data(struct i2c_client *client, int page,
return data;
data = sign_extend32(data, 15) * 10;
return clamp_val(data, -32768, 32767) & 0xffff;
/*
* PMBUS_READ_VOUT and PMBUS_READ_TEMPERATURE_1 return invalid data
* when the BCM is turned off. Since it is not possible to return
* ENODATA error, return zero instead.
*/
case PMBUS_READ_VOUT:
case PMBUS_READ_TEMPERATURE_1:
data = pmbus_read_word_data(client, page, phase,
PMBUS_STATUS_WORD);
if (data < 0)
return data;
if (data & PB_STATUS_POWER_GOOD_N)
return 0;
return pmbus_read_word_data(client, page, phase, reg);
default:
return -ENODATA;
}
}
#if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR)
static const struct regulator_desc pli1209bc_reg_desc = {
.name = "vout2",
.id = 1,
.of_match = of_match_ptr("vout2"),
.regulators_node = of_match_ptr("regulators"),
.ops = &pmbus_regulator_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
};
#endif
static struct pmbus_driver_info pli1209bc_info = {
.pages = 2,
.format[PSC_VOLTAGE_IN] = direct,
@ -75,6 +102,10 @@ static struct pmbus_driver_info pli1209bc_info = {
| PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
| PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT,
.read_word_data = pli1209bc_read_word_data,
#if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR)
.num_regulators = 1,
.reg_desc = &pli1209bc_reg_desc,
#endif
};
static int pli1209bc_probe(struct i2c_client *client)