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/stm32mp151.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi index 928e31db1526..719a4276a348 100644 --- a/arch/arm/boot/dts/stm32mp151.dtsi +++ b/arch/arm/boot/dts/stm32mp151.dtsi @@ -1001,7 +1001,7 @@ dmamux1: dma-router@48002000 { compatible = "st,stm32h7-dmamux"; - reg = <0x48002000 0x1c>; + reg = <0x48002000 0x40>; #dma-cells = <3>; dma-requests = <128>; dma-masters = <&dma1 &dma2>; -- 2.17.1