[PATCH 24/29] ARM: shmobile: r8a7791: Use SoC specific binding for rcar-dmac nodes

[Simon Horman]

Use the new SoC specific binding for rcar-dmac and the generic
binding as a fall-back in the r8a7791 device tree.

In general Renesas hardware is not documented to the extent where the
relationship between IP blocks on different SoCs can be assumed although
they may appear to operate the same way. Furthermore the documentation
typically does not specify a version for individual IP blocks. For these
reasons a convention of using the SoC name in place of a version and
providing SoC-specific compat strings has been adopted.

Although not universally liked this convention is used in the bindings for
most drivers for Renesas hardware. The purpose of this patch is to
update the Renesas R-Car DMA Controller nodes to follow this convention.

Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
---
 arch/arm/boot/dts/r8a7791.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index 2bc54e359768..9f5f30e714c5 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -255,7 +255,7 @@
 	};
 
 	dmac0: dma-controller at e6700000 {
-		compatible = "renesas,rcar-dmac";
+		compatible = "renesas,dmac-r8a7791", "renesas,rcar-dmac";
 		reg = <0 0xe6700000 0 0x20000>;
 		interrupts = <0 197 IRQ_TYPE_LEVEL_HIGH
 			      0 200 IRQ_TYPE_LEVEL_HIGH
@@ -286,7 +286,7 @@
 	};
 
 	dmac1: dma-controller at e6720000 {
-		compatible = "renesas,rcar-dmac";
+		compatible = "renesas,dmac-r8a7791", "renesas,rcar-dmac";
 		reg = <0 0xe6720000 0 0x20000>;
 		interrupts = <0 220 IRQ_TYPE_LEVEL_HIGH
 			      0 216 IRQ_TYPE_LEVEL_HIGH
@@ -317,7 +317,7 @@
 	};
 
 	audma0: dma-controller at ec700000 {
-		compatible = "renesas,rcar-dmac";
+		compatible = "renesas,dmac-r8a7791", "renesas,rcar-dmac";
 		reg = <0 0xec700000 0 0x10000>;
 		interrupts =	<0 346 IRQ_TYPE_LEVEL_HIGH
 				 0 320 IRQ_TYPE_LEVEL_HIGH
@@ -346,7 +346,7 @@
 	};
 
 	audma1: dma-controller at ec720000 {
-		compatible = "renesas,rcar-dmac";
+		compatible = "renesas,dmac-r8a7791", "renesas,rcar-dmac";
 		reg = <0 0xec720000 0 0x10000>;
 		interrupts =	<0 347 IRQ_TYPE_LEVEL_HIGH
 				 0 333 IRQ_TYPE_LEVEL_HIGH
-- 
2.1.4