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author | Takashi Iwai <tiwai@suse.de> | 2023-03-03 14:20:56 +0100 |
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committer | Takashi Iwai <tiwai@suse.de> | 2023-03-03 14:20:56 +0100 |
commit | 26ed1d29fc44f3f2f0c396c1392abefac5f0454e (patch) | |
tree | ffba9ebddf759f04cbeca8adace5cc8093c58c2d /Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml | |
parent | e97fc9cffbb9f372b53b42c36cd7b20aab44a554 (diff) | |
parent | 7933b90b42896f5b6596e6a829bb31c5121fc2a9 (diff) |
Merge branch 'for-next' into for-linus
Diffstat (limited to 'Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml b/Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml new file mode 100644 index 000000000000..c4cf1e5ab84b --- /dev/null +++ b/Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml @@ -0,0 +1,103 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/microchip,sama7g5-pdmc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip Pulse Density Microphone Controller + +maintainers: + - Codrin Ciubotariu <codrin.ciubotariu@microchip.com> + +description: + The Microchip Pulse Density Microphone Controller (PDMC) interfaces up to 4 + digital microphones having Pulse Density Modulated (PDM) outputs. + +allOf: + - $ref: dai-common.yaml# + +properties: + compatible: + const: microchip,sama7g5-pdmc + + reg: + maxItems: 1 + + "#sound-dai-cells": + const: 0 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: Peripheral Bus Clock + - description: Generic Clock + + clock-names: + items: + - const: pclk + - const: gclk + + dmas: + description: RX DMA Channel + maxItems: 1 + + dma-names: + const: rx + + microchip,mic-pos: + description: | + Position of PDM microphones on the DS line and the sampling edge (rising + or falling) of the CLK line. A microphone is represented as a pair of DS + line and the sampling edge. The first microphone is mapped to channel 0, + the second to channel 1, etc. + $ref: /schemas/types.yaml#/definitions/uint32-matrix + items: + items: + - description: value for DS line + - description: value for sampling edge + anyOf: + - enum: + - [0, 0] + - [0, 1] + - [1, 0] + - [1, 1] + minItems: 1 + maxItems: 4 + uniqueItems: true + +required: + - compatible + - reg + - "#sound-dai-cells" + - interrupts + - clocks + - clock-names + - dmas + - dma-names + - microchip,mic-pos + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/at91.h> + #include <dt-bindings/dma/at91.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/sound/microchip,pdmc.h> + + pdmc: sound@e1608000 { + compatible = "microchip,sama7g5-pdmc"; + reg = <0xe1608000 0x4000>; + #sound-dai-cells = <0>; + interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>; + dmas = <&dma0 AT91_XDMAC_DT_PERID(37)>; + dma-names = "rx"; + clocks = <&pmc PMC_TYPE_PERIPHERAL 68>, <&pmc PMC_TYPE_GCK 68>; + clock-names = "pclk", "gclk"; + microchip,mic-pos = <MCHP_PDMC_DS0 MCHP_PDMC_CLK_POSITIVE>, + <MCHP_PDMC_DS0 MCHP_PDMC_CLK_NEGATIVE>, + <MCHP_PDMC_DS1 MCHP_PDMC_CLK_POSITIVE>, + <MCHP_PDMC_DS1 MCHP_PDMC_CLK_NEGATIVE>; + }; |