hwmon: (pmbus) add support for Delta E50SN12051

Add the pmbus driver for Delta E50SN12051 600W Non-isolated
1/8th Brick DCDC Power Modules.

Signed-off-by: Colin Huang <u8813345@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20260508-add-e50sn12051-v5-3-abebdcc29665@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 8708235e3c23dee52c9e5bf3d5020df99c096b1a..c3bb6df2655ad86174dbde110e97f36a93457f6e 100644 (file)
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -161,6 +161,15 @@ config SENSORS_DPS920AB
          This driver can also be built as a module. If so, the module will
          be called dps920ab.
 
+config SENSORS_E50SN12051
+       tristate "Delta E50SN12051 Power Modules"
+       help
+         If you say yes here you get hardware monitoring support for Delta
+         E50SN12051 Power Modules.
+
+         This driver can also be built as a module. If so, the module will
+         be called e50sn12051.
+
 config SENSORS_INA233
        tristate "Texas Instruments INA233 and compatibles"
        help

diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index 2820e7442e32ee25782e0899de39aa127c24ed76..efd70b00ca2eb991afc256cea4a4c29c50ae0b75 100644 (file)
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_SENSORS_FSP_3Y)  += fsp-3y.o
 obj-$(CONFIG_SENSORS_HAC300S)  += hac300s.o
 obj-$(CONFIG_SENSORS_IBM_CFFPS)        += ibm-cffps.o
 obj-$(CONFIG_SENSORS_DPS920AB) += dps920ab.o
+obj-$(CONFIG_SENSORS_E50SN12051) += e50sn12051.o
 obj-$(CONFIG_SENSORS_INA233)   += ina233.o
 obj-$(CONFIG_SENSORS_INSPUR_IPSPS) += inspur-ipsps.o
 obj-$(CONFIG_SENSORS_IR35221)  += ir35221.o

diff --git a/drivers/hwmon/pmbus/e50sn12051.c b/drivers/hwmon/pmbus/e50sn12051.c
new file mode 100644 (file)
index 0000000..efb4d62
--- /dev/null
+++ b/drivers/hwmon/pmbus/e50sn12051.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Hardware monitoring driver for E50SN12051
+ */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include "pmbus.h"
+
+static struct pmbus_driver_info e50sn12051_info = {
+       .pages = 1,
+       .format[PSC_VOLTAGE_IN] = linear,
+       .format[PSC_VOLTAGE_OUT] = linear,
+       .format[PSC_CURRENT_OUT] = linear,
+       .format[PSC_TEMPERATURE] = linear,
+       .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT |
+                  PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
+                  PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
+                  PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+};
+
+static const struct i2c_device_id e50sn12051_id[] = { { "e50sn12051", 0 }, {} };
+MODULE_DEVICE_TABLE(i2c, e50sn12051_id);
+
+static const struct of_device_id e50sn12051_of_match[] = {
+       { .compatible = "delta,e50sn12051" },
+       {},
+};
+MODULE_DEVICE_TABLE(of, e50sn12051_of_match);
+
+static int e50sn12051_probe(struct i2c_client *client)
+{
+       return pmbus_do_probe(client, &e50sn12051_info);
+}
+
+static struct i2c_driver e50sn12051_driver = {
+       .driver = {
+               .name = "e50sn12051",
+               .of_match_table = e50sn12051_of_match,
+       },
+       .probe = e50sn12051_probe,
+
+       .id_table = e50sn12051_id,
+};
+
+module_i2c_driver(e50sn12051_driver);
+
+MODULE_AUTHOR("Kevin Chang <kevin.chang2@amd.com>");
+MODULE_DESCRIPTION("PMBus driver for E50SN12051");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS("PMBUS");