diff options
Diffstat (limited to 'Documentation/devicetree/bindings/serial/sprd-uart.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/serial/sprd-uart.txt | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/serial/sprd-uart.txt b/Documentation/devicetree/bindings/serial/sprd-uart.txt index cab40f0f6f49..9607dc616205 100644 --- a/Documentation/devicetree/bindings/serial/sprd-uart.txt +++ b/Documentation/devicetree/bindings/serial/sprd-uart.txt @@ -7,7 +7,17 @@ Required properties: - reg: offset and length of the register set for the device - interrupts: exactly one interrupt specifier -- clocks: phandles to input clocks. +- clock-names: Should contain following entries: + "enable" for UART module enable clock, + "uart" for UART clock, + "source" for UART source (parent) clock. +- clocks: Should contain a clock specifier for each entry in clock-names. + 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 { @@ -15,5 +25,8 @@ Example: "sprd,sc9836-uart"; reg = <0x0 0x100>; interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&ext_26m>; + 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>; }; |