add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/arm/boot/dts/exynos5420-cpus.dtsi
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@@ -1,6 +1,6 @@
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 // SPDX-License-Identifier: GPL-2.0
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 /*
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- * SAMSUNG EXYNOS5420 SoC cpu device tree source
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+ * Samsung Exynos5420 SoC cpu device tree source
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  *
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  * Copyright (c) 2015 Samsung Electronics Co., Ltd.
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  *		http://www.samsung.com