recipes-kernel/linux/5.15/0001-add-xdp730-driver.patch

From 1db0aeaca98c0d8bfa2d49d7eae70b3a02d28567 Mon Sep 17 00:00:00 2001
From: Charles Hsu <charles.hsu@quanta.corp-partner.google.com>
Date: Wed, 17 Dec 2025 08:48:07 +0000
Subject: [PATCH] add xdp730 driver

---
 drivers/hwmon/pmbus/Kconfig  | 10 ++++++
 drivers/hwmon/pmbus/Makefile |  1 +
 drivers/hwmon/pmbus/xdp730.c | 69 ++++++++++++++++++++++++++++++++++++
 3 files changed, 80 insertions(+)
 create mode 100644 drivers/hwmon/pmbus/xdp730.c

diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 632ac3cbeb05..eed47f790645 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -397,6 +397,16 @@ config SENSORS_UCD9200
 	  This driver can also be built as a module. If so, the module will
 	  be called ucd9200.
 
+config SENSORS_XDP730
+	tristate "Infineon XDP730 family"
+	help
+	  If you say yes here you get hardware monitoring support for Infineon
+	  XDP730.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called xdp730.
+
+
 config SENSORS_XDPE152
 	tristate "Infineon XDPE152 family"
 	help
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index e0026afd59d1..72bcf1a94557 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -43,6 +43,7 @@ obj-$(CONFIG_SENSORS_TPS53679)	+= tps53679.o
 obj-$(CONFIG_SENSORS_TPS546D24)	+= tps546d24.o
 obj-$(CONFIG_SENSORS_UCD9000)	+= ucd9000.o
 obj-$(CONFIG_SENSORS_UCD9200)	+= ucd9200.o
+obj-$(CONFIG_SENSORS_XDP730)	+= xdp730.o
 obj-$(CONFIG_SENSORS_XDPE122)	+= xdpe12284.o
 obj-$(CONFIG_SENSORS_XDPE152)	+= xdpe152c4.o
 obj-$(CONFIG_SENSORS_ZL6100)	+= zl6100.o
diff --git a/drivers/hwmon/pmbus/xdp730.c b/drivers/hwmon/pmbus/xdp730.c
new file mode 100644
index 000000000000..4e2b11111de3
--- /dev/null
+++ b/drivers/hwmon/pmbus/xdp730.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for Infineon xdp730 Hot-Swap Controller
+ */
+
+#include <linux/bitops.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include "pmbus.h"
+
+static struct pmbus_driver_info xdp730_info = {
+	.pages = 1,
+	.format[PSC_VOLTAGE_IN] = direct,
+	.format[PSC_VOLTAGE_OUT] = direct,
+	.format[PSC_CURRENT_OUT] = direct,
+	.format[PSC_POWER] = direct,
+	.format[PSC_TEMPERATURE] = direct,
+	.m[PSC_VOLTAGE_IN] = 4653,
+	.b[PSC_VOLTAGE_IN] = 0,
+	.R[PSC_VOLTAGE_IN] = -2,
+	.m[PSC_VOLTAGE_OUT] = 4653,
+	.b[PSC_VOLTAGE_OUT] = 0,
+	.R[PSC_VOLTAGE_OUT] = -2,
+	.m[PSC_CURRENT_OUT] = 24668,
+	.b[PSC_CURRENT_OUT] = 0,
+	.R[PSC_CURRENT_OUT] = -4,
+	.m[PSC_POWER] = 4486,
+	.b[PSC_POWER] = 0,
+	.R[PSC_POWER] = -1,
+	.m[PSC_TEMPERATURE] = 54,
+	.b[PSC_TEMPERATURE] = 22521,
+	.R[PSC_TEMPERATURE] = -1,
+	.func[0] =
+		PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_PIN |
+		PMBUS_HAVE_TEMP | PMBUS_HAVE_IOUT |
+		PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP,
+};
+
+static int xdp730_probe(struct i2c_client *client)
+{
+	return pmbus_do_probe(client, &xdp730_info);
+}
+
+static const struct of_device_id xdp730_of_match[] = {
+	{ .compatible = "infineon,xdp730" },
+	{}
+};
+
+static const struct i2c_device_id xdp730_id[] = {
+	{"xdp730"},
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, xdp730_id);
+
+static struct i2c_driver xdp730_driver = {
+	.driver = {
+		   .name = "xdp730",
+		   .of_match_table = xdp730_of_match,
+	},
+	.probe_new = xdp730_probe,
+	.id_table = xdp730_id,
+};
+module_i2c_driver(xdp730_driver);
+
+MODULE_AUTHOR("Charles Hsu <hsu.yungteng@gmail.com>");
+MODULE_DESCRIPTION("PMBus driver for xdp730 HSC");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS("PMBUS");
-- 
2.34.1