From 3c99121ca5c5f79959c172a6297572a273f54fb6 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 20 May 2015 19:46:24 +0200 Subject: [PATCH] serial: sh-sci: Add DMA support to the DT binding documentation Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman --- .../devicetree/bindings/serial/renesas,sci-serial.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt index ae73bb0e9ad9..b91fcff4b7d4 100644 --- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt +++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt @@ -44,6 +44,11 @@ Required properties: Note: Each enabled SCIx UART should have an alias correctly numbered in the "aliases" node. +Optional properties: + - dmas: Must contain a list of two references to DMA specifiers, one for + transmission, and one for reception. + - dma-names: Must contain a list of two DMA names, "tx" and "rx". + Example: aliases { serial0 = &scifa0; @@ -56,4 +61,6 @@ Example: interrupts = <0 144 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp2_clks R8A7790_CLK_SCIFA0>; clock-names = "sci_ick"; + dmas = <&dmac0 0x21>, <&dmac0 0x22>; + dma-names = "tx", "rx"; }; -- 2.20.1