From patchwork Tue May 23 15:12:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herve Codina X-Patchwork-Id: 13252492 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7DA35C7EE2E for ; Tue, 23 May 2023 15:12:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237453AbjEWPMg (ORCPT ); Tue, 23 May 2023 11:12:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53000 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237439AbjEWPMf (ORCPT ); Tue, 23 May 2023 11:12:35 -0400 Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0243BFA; Tue, 23 May 2023 08:12:32 -0700 (PDT) Received: (Authenticated sender: herve.codina@bootlin.com) by mail.gandi.net (Postfix) with ESMTPA id 43971C0002; Tue, 23 May 2023 15:12:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1684854751; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=GyTXVmL/5teIh8xuYTUUi3ltQcCGVDf6AcEbfADS6og=; b=lWPvq8cHwMHdAVLda4Fk0kYQp99VhMod7NzwHN7h56uzv3+/D0DlZbDz13zNPwM2YrzGCd OtRfdXy/i4wOdaa6ba+WNUEAuFl9vAZ1Pe4xzCgsOBnWQKGu7uESCYVfm0DyEF8/7ELdGf tlRHgkS3twGReZMKIDkZLvLssgthcUV3phHWcU0gTfeek7p2DVaVJjFOcaaVQzpKazHq1U sOVJ3/gP1i/mOimYgjbGMqJB6pWCiQkyKxmyB98bChgTXQnW4StIpZ3Mlxp6Hv/Q7MipUZ 8xuXSd1oGp8rjcWTT4Nj0FajGz9JkgIri0PP+quO25k8G/bMyJAD0+O4P/fo6w== From: Herve Codina To: Herve Codina , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Cameron , Lars-Peter Clausen , Jaroslav Kysela , Takashi Iwai , Kuninori Morimoto Cc: alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, Christophe Leroy , Thomas Petazzoni Subject: [PATCH v2 1/9] ASoC: dt-bindings: Add audio-iio-aux Date: Tue, 23 May 2023 17:12:15 +0200 Message-Id: <20230523151223.109551-2-herve.codina@bootlin.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230523151223.109551-1-herve.codina@bootlin.com> References: <20230523151223.109551-1-herve.codina@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Industrial I/O devices can be present in the audio path. These devices needs to be viewed as audio components in order to be fully integrated in the audio path. audio-iio-aux allows to consider these Industrial I/O devices as auxliary audio devices. Signed-off-by: Herve Codina --- .../bindings/sound/audio-iio-aux.yaml | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/audio-iio-aux.yaml diff --git a/Documentation/devicetree/bindings/sound/audio-iio-aux.yaml b/Documentation/devicetree/bindings/sound/audio-iio-aux.yaml new file mode 100644 index 000000000000..d3cc1ea4a175 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/audio-iio-aux.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/audio-iio-aux.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Audio IIO auxiliary + +maintainers: + - Herve Codina + +description: + Auxiliary device based on Industrial I/O device channels + +allOf: + - $ref: dai-common.yaml# + +properties: + compatible: + const: audio-iio-aux + + io-channels: + description: + Industrial I/O device channels used + + io-channel-names: + description: + Industrial I/O channel names related to io-channels. + These names are used to provides sound controls, widgets and routes names. + + snd-control-invert-range: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: | + A list of 0/1 flags defining whether or not the related channel is + inverted + items: + enum: [0, 1] + default: 0 + description: | + Invert the sound control value compared to the IIO channel raw value. + - 1: The related sound control value is inverted meaning that the + minimum sound control value correspond to the maximum IIO channel + raw value and the maximum sound control value correspond to the + minimum IIO channel raw value. + - 0: The related sound control value is not inverted meaning that the + minimum (resp maximum) sound control value correspond to the + minimum (resp maximum) IIO channel raw value. + +required: + - compatible + - io-channels + - io-channel-names + +unevaluatedProperties: false + +examples: + - | + iio-aux { + compatible = "audio-iio-aux"; + io-channels = <&iio 0>, <&iio 1>, <&iio 2>, <&iio 3>; + io-channel-names = "CH0", "CH1", "CH2", "CH3"; + /* Invert CH1 and CH2 */ + snd-control-invert-range = <0 1 1 0>; + };