[PATCH v3 3/3] hwmon (xdpe12284): Add regulator support

From: Marcello Sylvester Bauer
Date: Tue Mar 01 2022 - 13:01:48 EST


Add simple on/off regulator support for xdpe12284 and
other pmbus parts supported by the xdpe12284 driver.

Signed-off-by: Marcello Sylvester Bauer <sylv@xxxxxxx>
---
drivers/hwmon/pmbus/Kconfig | 6 ++++++
drivers/hwmon/pmbus/xdpe12284.c | 11 +++++++++++
2 files changed, 17 insertions(+)

diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 6552467c588d..a2ea1d5a8765 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -417,6 +417,12 @@ config SENSORS_XDPE122
This driver can also be built as a module. If so, the module will
be called xdpe12284.

+config SENSORS_XDPE122_REGULATOR
+ bool "Regulator support for XDPE122 and compatibles"
+ depends on SENSORS_XDPE122 && REGULATOR
+ help
+ Uses the xdpe12284 or compatible as regulator.
+
config SENSORS_ZL6100
tristate "Intersil ZL6100 and compatibles"
help
diff --git a/drivers/hwmon/pmbus/xdpe12284.c b/drivers/hwmon/pmbus/xdpe12284.c
index 3413aba9d5be..495c62005aed 100644
--- a/drivers/hwmon/pmbus/xdpe12284.c
+++ b/drivers/hwmon/pmbus/xdpe12284.c
@@ -10,6 +10,8 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/regulator/driver.h>
+
#include "pmbus.h"

#define XDPE122_PROT_VR12_5MV 0x01 /* VR12.0 mode, 5-mV DAC */
@@ -107,6 +109,11 @@ static int xdpe122_identify(struct i2c_client *client,
return 0;
}

+static const struct regulator_desc xdpe122_reg_desc[] = {
+ PMBUS_REGULATOR("vout", 0),
+ PMBUS_REGULATOR("vout", 1),
+};
+
static struct pmbus_driver_info xdpe122_info = {
.pages = XDPE122_PAGE_NUM,
.format[PSC_VOLTAGE_IN] = linear,
@@ -122,6 +129,10 @@ static struct pmbus_driver_info xdpe122_info = {
PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP |
PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
+#if IS_ENABLED(CONFIG_SENSORS_XDPE122_REGULATOR)
+ .num_regulators = 2,
+ .reg_desc = xdpe122_reg_desc,
+#endif
};

static int xdpe122_probe(struct i2c_client *client)
--
2.35.1