stm32mp157c has DFSDM (Digital Filter For Sigma Delta Modulators) hardware with 6 filter instances.
Signed-off-by: Fabrice Gasnier <[email protected]> --- arch/arm/boot/dts/stm32mp157c.dtsi | 70 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi index 66d7496..3d2f4e7 100644 --- a/arch/arm/boot/dts/stm32mp157c.dtsi +++ b/arch/arm/boot/dts/stm32mp157c.dtsi @@ -556,6 +556,76 @@ }; }; + dfsdm: dfsdm@4400d000 { + compatible = "st,stm32mp1-dfsdm"; + reg = <0x4400d000 0x800>; + clocks = <&rcc DFSDM_K>; + clock-names = "dfsdm"; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + + dfsdm0: filter@0 { + compatible = "st,stm32-dfsdm-adc"; + #io-channel-cells = <1>; + reg = <0>; + interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>; + dmas = <&dmamux1 101 0x400 0x01>; + dma-names = "rx"; + status = "disabled"; + }; + + dfsdm1: filter@1 { + compatible = "st,stm32-dfsdm-adc"; + #io-channel-cells = <1>; + reg = <1>; + interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>; + dmas = <&dmamux1 102 0x400 0x01>; + dma-names = "rx"; + status = "disabled"; + }; + + dfsdm2: filter@2 { + compatible = "st,stm32-dfsdm-adc"; + #io-channel-cells = <1>; + reg = <2>; + interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>; + dmas = <&dmamux1 103 0x400 0x01>; + dma-names = "rx"; + status = "disabled"; + }; + + dfsdm3: filter@3 { + compatible = "st,stm32-dfsdm-adc"; + #io-channel-cells = <1>; + reg = <3>; + interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>; + dmas = <&dmamux1 104 0x400 0x01>; + dma-names = "rx"; + status = "disabled"; + }; + + dfsdm4: filter@4 { + compatible = "st,stm32-dfsdm-adc"; + #io-channel-cells = <1>; + reg = <4>; + interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>; + dmas = <&dmamux1 91 0x400 0x01>; + dma-names = "rx"; + status = "disabled"; + }; + + dfsdm5: filter@5 { + compatible = "st,stm32-dfsdm-adc"; + #io-channel-cells = <1>; + reg = <5>; + interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>; + dmas = <&dmamux1 92 0x400 0x01>; + dma-names = "rx"; + status = "disabled"; + }; + }; + dma1: dma@48000000 { compatible = "st,stm32-dma"; reg = <0x48000000 0x400>; -- 1.9.1
