add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/arm/boot/dts/exynos5420-peach-pit.dts
..
..
@@ -1065,6 +1065,10 @@
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 	status = "okay";
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 };
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+&timer {
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+	arm,cpu-registers-not-fw-configured;
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+};
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+
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 &tmu_cpu0 {
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 	vtmu-supply = <&ldo10_reg>;
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 };