1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/hwmon/pmbus/tps546d24.c b/drivers/hwmon/pmbus/tps546d24.c
new file mode 100644
index 000000000..435f94304
--- /dev/null
+++ b/drivers/hwmon/pmbus/tps546d24.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Hardware monitoring driver for TEXAS TPS546D24 buck converter
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pmbus.h>
+#include "pmbus.h"
+
+static struct pmbus_driver_info tps546d24_info = {
+	.pages = 1,
+	.format[PSC_VOLTAGE_IN] = linear,
+	.format[PSC_VOLTAGE_OUT] = linear,
+	.format[PSC_TEMPERATURE] = linear,
+	.format[PSC_CURRENT_OUT] = linear,
+	.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN
+			| PMBUS_HAVE_IOUT | PMBUS_HAVE_VOUT
+			| PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_VOUT
+			| PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+};
+
+static int tps546d24_probe(struct i2c_client *client)
+{
+	int reg;
+
+	reg = i2c_smbus_read_byte_data(client, PMBUS_VOUT_MODE);
+	if (reg < 0)
+		return reg;
+
+	if (reg & 0x80) {
+		int err;
+
+		err = i2c_smbus_write_byte_data(client, PMBUS_VOUT_MODE, reg & 0x7f);
+		if (err < 0)
+			return err;
+	}
+	return pmbus_do_probe(client, &tps546d24_info);
+}
+
+static const struct i2c_device_id tps546d24_id[] = {
+	{"tps546d24", 0},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, tps546d24_id);
+
+static const struct of_device_id __maybe_unused tps546d24_of_match[] = {
+	{.compatible = "ti,tps546d24"},
+	{}
+};
+MODULE_DEVICE_TABLE(of, tps546d24_of_match);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver tps546d24_driver = {
+	.driver = {
+		   .name = "tps546d24",
+		   .of_match_table = of_match_ptr(tps546d24_of_match),
+	   },
+	.probe_new = tps546d24_probe,
+	.id_table = tps546d24_id,
+};
+
+module_i2c_driver(tps546d24_driver);
+
+MODULE_AUTHOR("Duke Du <dukedu83@gmail.com>");
+MODULE_DESCRIPTION("PMBus driver for TI tps546d24");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(PMBUS);