hwmon: (pmbus) Add support for Infineon Digital Multi-phase xdp152 family controllers

Add support for devices XDPE152C4, XDPE12584.

Signed-off-by: Greg Schwendimann <Greg.Schwendimann@infineon.com>
Link: https://lore.kernel.org/r/5e6d50e9b28140158f339b0de343eea4@infineon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

3 files changed, 85 insertions, 0 deletions

diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 53683d2d0fb2..dfae76db65ae 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -408,6 +408,15 @@ config SENSORS_UCD9200
 	  This driver can also be built as a module. If so, the module will
 	  be called ucd9200.
 
+config SENSORS_XDPE152
+	tristate "Infineon XDPE152 family"
+	help
+	  If you say yes here you get hardware monitoring support for Infineon
+	  XDPE15284, XDPE152C4, device.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called xdpe152c4.
+
 config SENSORS_XDPE122
 	tristate "Infineon XDPE122 family"
 	help
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index a4a96ac71de7..4678fba5012c 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -43,5 +43,6 @@ obj-$(CONFIG_SENSORS_TPS53679)	+= tps53679.o
 obj-$(CONFIG_SENSORS_UCD9000)	+= ucd9000.o
 obj-$(CONFIG_SENSORS_UCD9200)	+= ucd9200.o
 obj-$(CONFIG_SENSORS_XDPE122)	+= xdpe12284.o
+obj-$(CONFIG_SENSORS_XDPE152)	+= xdpe152c4.o
 obj-$(CONFIG_SENSORS_ZL6100)	+= zl6100.o
 obj-$(CONFIG_SENSORS_PIM4328)	+= pim4328.o
diff --git a/drivers/hwmon/pmbus/xdpe152c4.c b/drivers/hwmon/pmbus/xdpe152c4.c
new file mode 100644
index 000000000000..b8a36ef73e45
--- /dev/null
+++ b/drivers/hwmon/pmbus/xdpe152c4.c
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Hardware monitoring driver for Infineon Multi-phase Digital VR Controllers
+ *
+ * Copyright (c) 2022 Infineon Technologies. All rights reserved.
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include "pmbus.h"
+
+#define XDPE152_PAGE_NUM 2
+
+static struct pmbus_driver_info xdpe152_info = {
+	.pages = XDPE152_PAGE_NUM,
+	.format[PSC_VOLTAGE_IN] = linear,
+	.format[PSC_VOLTAGE_OUT] = linear,
+	.format[PSC_TEMPERATURE] = linear,
+	.format[PSC_CURRENT_IN] = linear,
+	.format[PSC_CURRENT_OUT] = linear,
+	.format[PSC_POWER] = linear,
+	.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
+		PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
+		PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP |
+		PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
+	.func[1] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
+		PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
+		PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
+};
+
+static int xdpe152_probe(struct i2c_client *client)
+{
+	struct pmbus_driver_info *info;
+
+	info = devm_kmemdup(&client->dev, &xdpe152_info, sizeof(*info),
+			    GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	return pmbus_do_probe(client, info);
+}
+
+static const struct i2c_device_id xdpe152_id[] = {
+	{"xdpe152c4", 0},
+	{"xdpe15284", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, xdpe152_id);
+
+static const struct of_device_id __maybe_unused xdpe152_of_match[] = {
+	{.compatible = "infineon,xdpe152c4"},
+	{.compatible = "infineon,xdpe15284"},
+	{}
+};
+MODULE_DEVICE_TABLE(of, xdpe152_of_match);
+
+static struct i2c_driver xdpe152_driver = {
+	.driver = {
+		.name = "xdpe152c4",
+		.of_match_table = of_match_ptr(xdpe152_of_match),
+	},
+	.probe_new = xdpe152_probe,
+	.id_table = xdpe152_id,
+};
+
+module_i2c_driver(xdpe152_driver);
+
+MODULE_AUTHOR("Greg Schwendimann <greg.schwendimann@infineon.com>");
+MODULE_DESCRIPTION("PMBus driver for Infineon XDPE152 family");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(PMBUS);