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[1/4] serial: sh-sci: Add DMA support to the DT binding documentation

Message ID 1432143987-10308-2-git-send-email-geert+renesas@glider.be
State Accepted, archived
Commit 3c99121ca5c5f79959c172a6297572a273f54fb6
Headers show

Commit Message

Geert Uytterhoeven May 20, 2015, 5:46 p.m. UTC 
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 Documentation/devicetree/bindings/serial/renesas,sci-serial.txt | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
index ae73bb0e9ad9e58b..b91fcff4b7d48133 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";
 	};