linux-kernel - [PATCH v1 4/4] ARM: dts: stm32: Add DMAMUX support on STM32MP157C

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Message-ID: <1524215681-14555-5-git-send-email-pierre-yves.mordret@st.com>
Date:   Fri, 20 Apr 2018 11:14:41 +0200
From:   Pierre-Yves MORDRET <pierre-yves.mordret@...com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     Pierre-Yves MORDRET <pierre-yves.mordret@...com>
Subject: [PATCH v1 4/4] ARM: dts: stm32: Add DMAMUX support on STM32MP157C

Activate DMAMUX for STM32MP157C

Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@...com>
---
  Version history:
     v1:
        * Initial
---
---
 arch/arm/boot/dts/stm32mp157c.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index 3c0ca6c..da4c39e 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -174,6 +174,7 @@
 			clocks = <&rcc DMA1>;
 			#dma-cells = <4>;
 			st,mem2mem;
+			dma-requests = <8>;
 		};
 
 		dma2: dma@...01000 {
@@ -190,6 +191,17 @@
 			clocks = <&rcc DMA2>;
 			#dma-cells = <4>;
 			st,mem2mem;
+			dma-requests = <8>;
+		};
+
+		dmamux1: dma-router@...02000 {
+			compatible = "st,stm32h7-dmamux";
+			reg = <0x48002000 0x1c>;
+			#dma-cells = <3>;
+			dma-requests = <128>;
+			dma-masters = <&dma1 &dma2>;
+			dma-channels = <16>;
+			clocks = <&rcc DMAMUX>;
 		};
 
 		rcc: rcc@...00000 {
-- 
2.7.4