From patchwork Wed Mar 15 13:42:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herve Codina X-Patchwork-Id: 663599 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 01F7DC61DA4 for ; Wed, 15 Mar 2023 13:42:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232406AbjCONmx (ORCPT ); Wed, 15 Mar 2023 09:42:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231848AbjCONms (ORCPT ); Wed, 15 Mar 2023 09:42:48 -0400 Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 169698EA3B; Wed, 15 Mar 2023 06:42:46 -0700 (PDT) Received: (Authenticated sender: herve.codina@bootlin.com) by mail.gandi.net (Postfix) with ESMTPA id 774C640004; Wed, 15 Mar 2023 13:42:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1678887765; 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=nSK6QmzgFgboixiIAQGzqWb/rCb1DitwrXgQXi+UVkQ=; b=BRLGgg+d1mebPDYbuEfKpLaT3Gaa7+FVrT/MFfJaKNsKHljpx9AktNDEsYo4Wat28bPvu7 upAw0DINnnx7y31brXY2IqqWJ7AqtEVStzfa7JpU4RxUrp/D8hIxjNZl5CEmn0pfXUQBwv KZKZriRkwtu0E3JsH5rGIN1l8JFV22Lv7ziO5kXwz77dIESwF+JrnMgmx277EUMZtbRBUI +FD+CtMrZUBUbiwbwPA64yNxPWFhJVS2C4zIAWa4KdpAcZ5zarFUe+gbqvWMZHtJVpPuZz oZea7nyYkNu4Zw7TFlydTbk11+UlWqIZ6EAORyoDWnhwnD4AikYJ7BY2JfpcCA== From: Herve Codina To: Herve Codina , Rob Herring , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Derek Kiernan , Dragan Cvetic , Arnd Bergmann , Greg Kroah-Hartman , Jaroslav Kysela , Takashi Iwai Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, alsa-devel@alsa-project.org, Christophe Leroy , Thomas Petazzoni Subject: [PATCH 5/7] dt-bindings: sound: Add support for the Lantiq PEF2256 codec Date: Wed, 15 Mar 2023 14:42:29 +0100 Message-Id: <20230315134231.233193-6-herve.codina@bootlin.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230315134231.233193-1-herve.codina@bootlin.com> References: <20230315134231.233193-1-herve.codina@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The Lantiq PEF2256, also known as Infineon PEF2256 or FALC256, is a framer and line interface component designed to fulfill all required interfacing between an analog E1/T1/J1 line and the digital PCM system highway/H.100 bus. The codec support allows to use some of the PCM system highway time-slots as audio channels to transport audio data over the E1/T1/J1 lines. Signed-off-by: Herve Codina --- .../bindings/sound/lantiq,pef2256-codec.yaml | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/lantiq,pef2256-codec.yaml diff --git a/Documentation/devicetree/bindings/sound/lantiq,pef2256-codec.yaml b/Documentation/devicetree/bindings/sound/lantiq,pef2256-codec.yaml new file mode 100644 index 000000000000..acba3a0ccd1b --- /dev/null +++ b/Documentation/devicetree/bindings/sound/lantiq,pef2256-codec.yaml @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/lantiq,pef2256-codec.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lantiq PEF2256 codec device + +maintainers: + - Herve Codina + +description: | + Codec support for PEF2256. + + The Lantiq PEF2256, also known as Infineon PEF2256 or FALC256, is a framer and + line interface component designed to fulfill all required interfacing between + an analog E1/T1/J1 line and the digital PCM system highway/H.100 bus. + + The codec support allows to use some of the PCM system highway time-slots as + audio channels to transport audio data over the E1/T1/J1 lines. + + The time-slots used by the codec must be set and so, the properties + 'dai-tdm-slot-num', 'dai-tdm-slot-width', 'dai-tdm-slot-tx-mask' and + 'dai-tdm-slot-rx-mask' must be present in the ALSA sound card node for + sub-nodes that involve the codec. The codec uses 8bit time-slots. + 'dai-tdm-tdm-slot-with' must be set to 8. + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - $ref: dai-common.yaml# + +properties: + compatible: + const: lantiq,pef2256-codec + + lantiq,pef2256: + $ref: /schemas/types.yaml#/definitions/phandle + description: + phandle to the PEF2256 + + '#sound-dai-cells': + const: 0 + +required: + - compatible + - lantiq,pef2256 + - '#sound-dai-cells' + +unevaluatedProperties: false + +examples: + - | + audio-codec { + compatible = "lantiq,pef2256-codec"; + lantiq,pef2256 = <&pef2256>; + #sound-dai-cells = <0>; + };