ARM: dts: sun9i: cubieboard4: Declare AXP809 SW regulator as unused

The AXP809's SW (switch) regulator is unused on the Cubieboard 4.
Add an empty node for it so that the OS can generate constraints.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts b/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
index 04b0146..910b29f 100644 (file)
--- a/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
+++ b/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
@@ -253,6 +253,10 @@
                        reg_rtc_ldo: rtc_ldo {
                                regulator-name = "vcc-rtc-vdd1v8-io";
                        };
+
+                       sw {
+                               /* unused */
+                       };
                };
        };