add ip1811 driver

hc

2023-11-22 9ca5fbcb63a8dcaee0527f96afb91dc4b4bd8fa9

 kernel/arch/mips/Kconfig
..
..
@@ -2525,7 +2525,7 @@
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 #
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 config HIGHMEM
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 	bool "High Memory Support"
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-	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
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+	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA && !PREEMPT_RT_FULL
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 config CPU_SUPPORTS_HIGHMEM
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 	bool