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dt-bindings: serial: snps-dw-apb-uart: add dma & dma-names properties

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Commit 0c559bc8ab ("dt-bindings: serial: restrict possible child node
names") exposed the Allwinner D1 devicetrees as users of unevaluated
properties, with a slew of similar warnings now appearing during
dtbs_check:
sun20i-d1-nezha.dtb: serial@2500400: Unevaluated properties are not allowed ('dma-names', 'dmas' were unexpected)

Document the missing properties.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230208171715.70862-1-conor@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Conor Dooley 2023-02-08 17:17:16 +00:00 committed by Greg Kroah-Hartman
parent 491581f40e
commit 370f696e44
1 changed files with 8 additions and 0 deletions
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8
Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
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@ -67,6 +67,14 @@ properties:
- const: baudclk
- const: apb_pclk
dmas:
minItems: 2
dma-names:
items:
- const: rx
- const: tx
snps,uart-16550-compatible:
description: reflects the value of UART_16550_COMPATIBLE configuration
parameter. Define this if your UART does not implement the busy functionality.