[PATCH 03/63] ARM: ux500: Supply UART's DMA configuration via Device Tree

Lee Jones lee.jones at linaro.org
Fri May 3 10:31:49 EDT 2013


When requesting a channel, a DMA client needs to pass some pieces of
information such as; request channel, device type, channel type and
direction etc. Normally we do this in the form of platform data, but
when DT is enabled we need to pass it using the driver's bindings
instead.

Acked-by: Linus Walleij <linus.walleij at linaro.org>
Signed-off-by: Lee Jones <lee.jones at linaro.org>
---
 arch/arm/boot/dts/dbx5x0.dtsi |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/dbx5x0.dtsi b/arch/arm/boot/dts/dbx5x0.dtsi
index 8a82b18..d595e2c 100644
--- a/arch/arm/boot/dts/dbx5x0.dtsi
+++ b/arch/arm/boot/dts/dbx5x0.dtsi
@@ -568,18 +568,35 @@
 			compatible = "arm,pl011", "arm,primecell";
 			reg = <0x80120000 0x1000>;
 			interrupts = <0 11 0x4>;
+
+			dmas = <&dma 13 0 0x2>, /* Logical - DevToMem */
+			       <&dma 13 0 0x0>; /* Logical - MemToDev */
+			dma-names = "rx", "tx";
+
 			status = "disabled";
 		};
+
 		uart at 80121000 {
 			compatible = "arm,pl011", "arm,primecell";
 			reg = <0x80121000 0x1000>;
 			interrupts = <0 19 0x4>;
+
+			dmas = <&dma 12 0 0x2>, /* Logical - DevToMem */
+			       <&dma 12 0 0x0>; /* Logical - MemToDev */
+			dma-names = "rx", "tx";
+
 			status = "disabled";
 		};
+
 		uart at 80007000 {
 			compatible = "arm,pl011", "arm,primecell";
 			reg = <0x80007000 0x1000>;
 			interrupts = <0 26 0x4>;
+
+			dmas = <&dma 11 0 0x2>, /* Logical - DevToMem */
+			       <&dma 11 0 0x0>; /* Logical - MemToDev */
+			dma-names = "rx", "tx";
+
 			status = "disabled";
 		};
 
-- 
1.7.10.4




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