In 4.14 reg-names is required to identify resources.
Otherwise init fails with:

[    5.900501] xhci-mtk 1e1c0000.xhci: invalid resource
[    5.910499] xhci-mtk: probe of 1e1c0000.xhci failed with error -22

Signed-off-by: Roman Yeryomin <ro...@advem.lv>
---
 target/linux/ramips/dts/mt7621.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/ramips/dts/mt7621.dtsi 
b/target/linux/ramips/dts/mt7621.dtsi
index d68ddf3bc6..23b5455d68 100644
--- a/target/linux/ramips/dts/mt7621.dtsi
+++ b/target/linux/ramips/dts/mt7621.dtsi
@@ -342,6 +342,7 @@
                compatible = "mediatek,mt8173-xhci";
                reg = <0x1e1c0000 0x1000
                       0x1e1d0700 0x0100>;
+               reg-names = "mac", "ippc";
 
                clocks = <&sysclock>;
                clock-names = "sys_ck";
-- 
2.14.1
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