v4.19.13 snapshot.
diff --git a/drivers/platform/mips/Makefile b/drivers/platform/mips/Makefile
new file mode 100644
index 0000000..8dfd039
--- /dev/null
+++ b/drivers/platform/mips/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_CPU_HWMON) += cpu_hwmon.o