[PATCH v3] ARM: dts: stm32: Add DMAMUX support for STM32H743 SoC

This patch adds DMAMUX support for STM32H743 SoC.

Signed-off-by: Pierre-Yves MORDRET <redacted>
---
  Version history:
     v3:
        * Rebase on v4.14-rc2
     v2:
        * Update DTS to be compliant with up-streamed bindings
     v1:
        * Initial
---
---
  arch/arm/boot/dts/stm32h743.dtsi | 12 ++++++++++++
  1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi
index 58ec227..e8457f6 100644
--- a/arch/arm/boot/dts/stm32h743.dtsi
+++ b/arch/arm/boot/dts/stm32h743.dtsi

@@ -121,6 +121,7 @@
  			clocks = <&timer_clk>;
  			#dma-cells = <4>;
  			st,mem2mem;
+			dma-requests = <8>;
  			status = "disabled";
  		};
  

@@ -138,6 +139,7 @@
  			clocks = <&timer_clk>;
  			#dma-cells = <4>;
  			st,mem2mem;
+			dma-requests = <8>;
  			status = "disabled";
  		};
  

@@ -193,6 +195,16 @@
  				status = "disabled";
  			};
  		};
+
+		dmamux1: dma-router at 40020800 {
+			compatible = "st,stm32h7-dmamux";
+			reg = <0x40020800 0x1c>;
+			#dma-cells = <3>;
+			dma-channels = <16>;
+			dma-requests = <128>;
+			dma-masters = <&dma1 &dma2>;
+			clocks = <&timer_clk>;
+		};
  	};
  };