The prefix of your commit title should be "ARM: dts: ..."
I have tested this on two Orange Pi Plus boards, and they run stable
across a range of voltages (and frequencies).
How was this tested?
+ /*
+ * The datasheet uses 1.1V as the minimum value of VDD-CPUX,
+ * however both the Armbian DVFS table and the official one
+ * have operating points with voltage under 1.1V, and both
+ * DVFS table are known to work properly at the lowest
+ * operating point.
+ *
+ * Use 1.0V as the minimum voltage instead.
+ */
There's not much point to that comment, since it's been that way for
all the other SoCs from Allwinner. However, that would be great to
have it in the commit log.