1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/hwmon/pmbus/tda38640.c b/drivers/hwmon/pmbus/tda38640.c
new file mode 100644
index 0000000000..450b0273fb
--- /dev/null
+++ b/drivers/hwmon/pmbus/tda38640.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Hardware monitoring driver for Infineon TDA38640
+ *
+ * Copyright (c) 2023 9elements GmbH
+ *
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/regulator/driver.h>
+#include "pmbus.h"
+
+static const struct regulator_desc __maybe_unused tda38640_reg_desc[] = {
+	PMBUS_REGULATOR("vout", 0),
+};
+
+static struct pmbus_driver_info tda38640_info = {
+	.pages = 1,
+	.format[PSC_VOLTAGE_IN] = linear,
+	.format[PSC_VOLTAGE_OUT] = linear,
+	.format[PSC_CURRENT_OUT] = linear,
+	.format[PSC_CURRENT_IN] = linear,
+	.format[PSC_POWER] = linear,
+	.format[PSC_TEMPERATURE] = linear,
+
+	.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
+	    | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
+	    | PMBUS_HAVE_IIN
+	    | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+	    | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+	    | PMBUS_HAVE_POUT | PMBUS_HAVE_PIN,
+#if IS_ENABLED(CONFIG_SENSORS_TDA38640_REGULATOR)
+	.num_regulators = 1,
+	.reg_desc = tda38640_reg_desc,
+#endif
+};
+
+static int tda38640_probe(struct i2c_client *client)
+{
+	return pmbus_do_probe(client, &tda38640_info);
+}
+
+static const struct i2c_device_id tda38640_id[] = {
+	{"tda38640", 0},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, tda38640_id);
+
+static const struct of_device_id __maybe_unused tda38640_of_match[] = {
+	{ .compatible = "infineon,tda38640"},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, tda38640_of_match);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver tda38640_driver = {
+	.driver = {
+		.name = "tda38640",
+		.of_match_table = of_match_ptr(tda38640_of_match),
+	},
+	.probe = tda38640_probe,
+	.id_table = tda38640_id,
+};
+
+module_i2c_driver(tda38640_driver);
+
+MODULE_AUTHOR("Patrick Rudolph <patrick.rudolph@9elements.com>");
+MODULE_DESCRIPTION("PMBus driver for Infineon TDA38640");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(PMBUS);