Reg property length should cover all DMAMUX_CxCR registers. DMAMUX_CxCR Address offset: 0x000 + 0x04 * x (x = 0 to 15), so latest offset is at 0x3c, so length should be 0x40. Signed-off-by: Amelie Delaunay <amelie.delaunay@xxxxxx> --- arch/arm/boot/dts/stm32h743.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi index 7febe19e780d..b083afd0ebd6 100644 --- a/arch/arm/boot/dts/stm32h743.dtsi +++ b/arch/arm/boot/dts/stm32h743.dtsi @@ -274,7 +274,7 @@ dmamux1: dma-router@40020800 { compatible = "st,stm32h7-dmamux"; - reg = <0x40020800 0x1c>; + reg = <0x40020800 0x40>; #dma-cells = <3>; dma-channels = <16>; dma-requests = <128>; -- 2.17.1