From 8be3da65d9222e1e63b7f9d001e872947588946f Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 17 Dec 2013 17:22:20 +0100 Subject: tty/serial: at91: document clock properties Document the clock properties required by the at91 usart driver. Signed-off-by: Boris BREZILLON Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/serial/atmel-usart.txt | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'Documentation/devicetree/bindings/serial') diff --git a/Documentation/devicetree/bindings/serial/atmel-usart.txt b/Documentation/devicetree/bindings/serial/atmel-usart.txt index 2191dcb9f1da..9c5d19ac935c 100644 --- a/Documentation/devicetree/bindings/serial/atmel-usart.txt +++ b/Documentation/devicetree/bindings/serial/atmel-usart.txt @@ -6,6 +6,9 @@ Required properties: additional mode or an USART new feature. - reg: Should contain registers location and length - interrupts: Should contain interrupt +- clock-names: tuple listing input clock names. + Required elements: "usart" +- clocks: phandles to input clocks. Optional properties: - atmel,use-dma-rx: use of PDC or DMA for receiving data @@ -26,6 +29,8 @@ Example: compatible = "atmel,at91sam9260-usart"; reg = <0xfff8c000 0x4000>; interrupts = <7>; + clocks = <&usart0_clk>; + clock-names = "usart"; atmel,use-dma-rx; atmel,use-dma-tx; }; @@ -35,6 +40,8 @@ Example: compatible = "atmel,at91sam9260-usart"; reg = <0xf001c000 0x100>; interrupts = <12 4 5>; + clocks = <&usart0_clk>; + clock-names = "usart"; atmel,use-dma-rx; atmel,use-dma-tx; dmas = <&dma0 2 0x3>, -- cgit v1.2.3-59-g8ed1b