Convert the STM32 DFSDM audio bindings to DT schema format using json-schema.

Signed-off-by: Olivier Moysan olivier.moysan@st.com --- .../bindings/sound/st,stm32-adfsdm.txt | 63 ------------------- .../bindings/sound/st,stm32-adfsdm.yaml | 42 +++++++++++++ 2 files changed, 42 insertions(+), 63 deletions(-) delete mode 100644 Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt create mode 100644 Documentation/devicetree/bindings/sound/st,stm32-adfsdm.yaml

diff --git a/Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt b/Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt deleted file mode 100644 index 864f5b00b031..000000000000 --- a/Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt +++ /dev/null @@ -1,63 +0,0 @@ -STMicroelectronics Audio Digital Filter Sigma Delta modulators(DFSDM) - -The DFSDM allows PDM microphones capture through SPI interface. The Audio -interface is seems as a sub block of the DFSDM device. -For details on DFSDM bindings refer to ../iio/adc/st,stm32-dfsdm-adc.txt - -Required properties: - - compatible: "st,stm32h7-dfsdm-dai". - - - #sound-dai-cells : Must be equal to 0 - - - io-channels : phandle to iio dfsdm instance node. - -Example of a sound card using audio DFSDM node. - - sound_card { - compatible = "audio-graph-card"; - - dais = <&cpu_port>; - }; - - dfsdm: dfsdm@40017000 { - compatible = "st,stm32h7-dfsdm"; - reg = <0x40017000 0x400>; - clocks = <&rcc DFSDM1_CK>; - clock-names = "dfsdm"; - #interrupt-cells = <1>; - #address-cells = <1>; - #size-cells = <0>; - - dfsdm_adc0: filter@0 { - compatible = "st,stm32-dfsdm-dmic"; - reg = <0>; - interrupts = <110>; - dmas = <&dmamux1 101 0x400 0x00>; - dma-names = "rx"; - st,adc-channels = <1>; - st,adc-channel-names = "dmic0"; - st,adc-channel-types = "SPI_R"; - st,adc-channel-clk-src = "CLKOUT"; - st,filter-order = <5>; - - dfsdm_dai0: dfsdm-dai { - compatible = "st,stm32h7-dfsdm-dai"; - #sound-dai-cells = <0>; - io-channels = <&dfsdm_adc0 0>; - cpu_port: port { - dfsdm_endpoint: endpoint { - remote-endpoint = <&dmic0_endpoint>; - }; - }; - }; - }; - - dmic0: dmic@0 { - compatible = "dmic-codec"; - #sound-dai-cells = <0>; - port { - dmic0_endpoint: endpoint { - remote-endpoint = <&dfsdm_endpoint>; - }; - }; - }; diff --git a/Documentation/devicetree/bindings/sound/st,stm32-adfsdm.yaml b/Documentation/devicetree/bindings/sound/st,stm32-adfsdm.yaml new file mode 100644 index 000000000000..d953ec524ba2 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/st,stm32-adfsdm.yaml @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/st,stm32-adfsdm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: STMicroelectronics Audio Digital Filter Sigma Delta modulators(DFSDM) + +maintainers: + - Olivier Moysan olivier.moysan@st.com + +description: + The DFSDM allows PDM microphones capture through the SPI interface. + The Audio interface is seen as a sub block of the DFSDM device. + For details on DFSDM bindings refer to ../iio/adc/st,stm32-dfsdm-adc.yaml + +properties: + compatible: + enum: + - st,stm32h7-dfsdm-dai + + "#sound-dai-cells": + const: 0 + + io-channels: + description: phandle to iio dfsdm instance node + maxItems: 1 + +required: + - compatible + - "#sound-dai-cells" + - io-channels + +examples: + - | + asoc_pdm0: dfsdm-dai { + compatible = "st,stm32h7-dfsdm-dai"; + #sound-dai-cells = <0>; + io-channels = <&dfsdm0 0>; + }; + +...