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Wed, 14 Oct 2020 14:35:53 +0200 (CEST) Received: from localhost (10.75.127.44) by SFHDAG2NODE2.st.com (10.75.127.5) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 14 Oct 2020 14:35:53 +0200 From: Olivier Moysan To: , , , , , , , Subject: [PATCH 1/1] ASoC: dt-bindings: stm32: convert audio dfsdm to json-schema Date: Wed, 14 Oct 2020 14:35:31 +0200 Message-ID: <20201014123531.6991-1-olivier.moysan@st.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.75.127.44] X-ClientProxiedBy: SFHDAG8NODE2.st.com (10.75.127.23) To SFHDAG2NODE2.st.com (10.75.127.5) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-10-14_07:2020-10-14, 2020-10-14 signatures=0 Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, arnaud.pouliquen@st.com, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Convert the STM32 DFSDM audio bindings to DT schema format using json-schema. Signed-off-by: Olivier Moysan --- .../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 + +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>; + }; + +...