diff options
Diffstat (limited to 'Documentation/devicetree/bindings/serial')
| -rw-r--r-- | Documentation/devicetree/bindings/serial/sprd-uart.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/sprd-uart.txt b/Documentation/devicetree/bindings/serial/sprd-uart.txt index 6eb5863aa548..9607dc616205 100644 --- a/Documentation/devicetree/bindings/serial/sprd-uart.txt +++ b/Documentation/devicetree/bindings/serial/sprd-uart.txt @@ -15,12 +15,18 @@ Required properties: UART clock and source clock are optional properties, but enable clock is required. +Optional properties: +- dma-names: Should contain "rx" for receive and "tx" for transmit channels. +- dmas: A list of dma specifiers, one for each entry in dma-names. + Example: uart0: serial@0 { compatible = "sprd,sc9860-uart", "sprd,sc9836-uart"; reg = <0x0 0x100>; interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>; + dma-names = "rx", "tx"; + dmas = <&ap_dma 19>, <&ap_dma 20>; clock-names = "enable", "uart", "source"; clocks = <&clk_ap_apb_gates 9>, <&clk_uart0>, <&ext_26m>; }; |