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Diffstat (limited to 'Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml b/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml index 2b06c6ce4a75..9d949296a142 100644 --- a/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml +++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml @@ -71,6 +71,18 @@ properties: received, and that the peripheral should invert its input using the INVR registers. + fsl,dma-info: + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 2 + maxItems: 2 + description: | + First cell contains the size of DMA buffer chunks, second cell contains + the amount of chunks used for the device. Multiplying both numbers is + the total size of memory used for receiving data. + When not being configured the system will use default settings, which + are sensible for most use cases. If you need low latency processing on + slow connections this needs to be configured appropriately. + uart-has-rtscts: true rs485-rts-delay: true |