hwmon: (pmbus) Add support for Lineage Power MDT040

MDT040 is supported by the generic PMBus driver. Add device ID and reference to
datasheet. Also mention Lineage Power device support in Kconfig.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 7968c81..d1aa2db 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -20,7 +20,8 @@
 	help
 	  If you say yes here you get hardware monitoring support for generic
 	  PMBus devices, including but not limited to ADP4000, BMR453, BMR454,
-	  NCP4200, NCP4208, TPS40400, and TPS40422.
+	  MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012, UDT020, TPS40400,
+	  and TPS40422.
 
 	  This driver can also be built as a module. If so, the module will
 	  be called pmbus.
diff --git a/drivers/hwmon/pmbus/pmbus.c b/drivers/hwmon/pmbus/pmbus.c
index 7d5161d..7e91700 100644
--- a/drivers/hwmon/pmbus/pmbus.c
+++ b/drivers/hwmon/pmbus/pmbus.c
@@ -185,6 +185,7 @@
 	{"adp4000", 1},
 	{"bmr453", 1},
 	{"bmr454", 1},
+	{"mdt040", 1},
 	{"ncp4200", 1},
 	{"ncp4208", 1},
 	{"pdt003", 1},