diff options
Diffstat (limited to 'Documentation/devicetree/bindings/serial/atmel-usart.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/serial/atmel-usart.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/atmel-usart.txt b/Documentation/devicetree/bindings/serial/atmel-usart.txt index 9c5d19ac935c..17c1042b2df8 100644 --- a/Documentation/devicetree/bindings/serial/atmel-usart.txt +++ b/Documentation/devicetree/bindings/serial/atmel-usart.txt @@ -13,6 +13,8 @@ Required properties: Optional properties: - atmel,use-dma-rx: use of PDC or DMA for receiving data - atmel,use-dma-tx: use of PDC or DMA for transmitting data +- rts-gpios: specify a GPIO for RTS line. It will use specified PIO instead of the peripheral + function pin for the USART RTS feature. If unsure, don't specify this property. - add dma bindings for dma transfer: - dmas: DMA specifier, consisting of a phandle to DMA controller node, memory peripheral interface and USART DMA channel ID, FIFO configuration. @@ -33,6 +35,7 @@ Example: clock-names = "usart"; atmel,use-dma-rx; atmel,use-dma-tx; + rts-gpios = <&pioD 15 0>; }; - use DMA: |