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Commit 8be3da65 authored by Boris BREZILLON's avatar Boris BREZILLON Committed by Greg Kroah-Hartman
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tty/serial: at91: document clock properties



Document the clock properties required by the at91 usart driver.

Signed-off-by: default avatarBoris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5855b210
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+7 −0
Original line number Diff line number Diff line
@@ -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>,