add dts config

hc

2023-12-06 08f87f769b595151be1afeff53e144f543faa614

 kernel/Documentation/devicetree/bindings/serial/omap_serial.txt
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@@ -1,6 +1,7 @@
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 OMAP UART controller
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 Required properties:
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+- compatible : should be "ti,j721e-uart", "ti,am654-uart" for J721E controllers
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 - compatible : should be "ti,am654-uart" for AM654 controllers
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 - compatible : should be "ti,omap2-uart" for OMAP2 controllers
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 - compatible : should be "ti,omap3-uart" for OMAP3 controllers
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@@ -22,6 +23,8 @@
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 - dma-names : "rx" for receive channel, "tx" for transmit channel.
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 - rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt
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 - rs485-rts-active-high: drive RTS high when sending (default is low).
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+- clocks: phandle to the functional clock as per
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+  Documentation/devicetree/bindings/clock/clock-bindings.txt
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 Example:
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