arm64: dts: st: add DMA support on U(S)ART instances of stm32mp25

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Add dmas and dma-names properties in u(s)art nodes of stm32mp251.dtsi to
enable DMA support.
RX channel requires to prevent pack/unpack feature of DMA to avoid losing
bytes when interrupting RX transfer, as it uses a cyclic buffer.

Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

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Amelie Delaunay 2024-10-16 14:39:59 +02:00 • committed by Alexandre Torgue

parent fab334f4ce

commit 1e110e4446

2 changed files with 29 additions and 0 deletions

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27

arch/arm64/boot/dts/st/stm32mp251.dtsi

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2

arch/arm64/boot/dts/st/stm32mp257f-ev1.dts

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