From mboxrd@z Thu Jan 1 00:00:00 1970 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 EB650C433F5 for ; Mon, 7 Mar 2022 12:23:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242097AbiCGMYG (ORCPT ); Mon, 7 Mar 2022 07:24:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51304 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242081AbiCGMXs (ORCPT ); Mon, 7 Mar 2022 07:23:48 -0500 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3DFBF39695; Mon, 7 Mar 2022 04:22:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1646655773; x=1678191773; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=0TQozHfB8UTWKE6wf2o0Hvd8wf+stI5/pPPDsrXJk3o=; b=rKS9LtW4uyojfRG969fcILDE+HLrgCUVrqcsPsDmlsxmAWH3tqdGWPpU 47L/7YhBmK06XuEVYFVrWsdXxndP8Om+jY6jtleVR7Z1kgP8xrdSwnZc4 ZNmpmv4hSg2RMjRxbv3c/rekU3Mk7Z3ltscz6Wq+BTgVc4fk05Glkd4p0 wRfOH8FaCQ5J15LdsL6g963CaXyX7Ayz1nhKBgzDdjTP4ollUHNvsFtxT /u8Dt15PkgTfXmL1LlnvH2cgVrnAy2EDSqssqUDSnj+ehnJRda2e+JBDl wMsEqijyjBS33ITvuB46p5hxznX9FAay4L758NZIvD+HV7gappMFYWsgW g==; X-IronPort-AV: E=Sophos;i="5.90,162,1643698800"; d="scan'208";a="155942223" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 07 Mar 2022 05:22:48 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Mon, 7 Mar 2022 05:22:47 -0700 Received: from rob-ult-m19940.amer.actel.com (10.10.115.15) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Mon, 7 Mar 2022 05:22:45 -0700 From: Codrin Ciubotariu To: , , , CC: , , , , , , "Codrin Ciubotariu" Subject: [PATCH v3 2/6] ASoC: dt-bindings: Document Microchip's PDMC Date: Mon, 7 Mar 2022 14:21:58 +0200 Message-ID: <20220307122202.2251639-3-codrin.ciubotariu@microchip.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220307122202.2251639-1-codrin.ciubotariu@microchip.com> References: <20220307122202.2251639-1-codrin.ciubotariu@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add DT bindings for the new Microchip PDMC embedded in sama7g5 SoCs. Signed-off-by: Codrin Ciubotariu --- Changes in v3: - set line length to 80 characters long - set 'reg' as the second property Changes in v2: - renamed patch from 'ASoC: add DT bindings for Microchip PDMC' to 'ASoC: dt-bindings: Document Microchip's PDMC'; - renamed yaml file from 'mchp,pdmc.yaml' to 'microchip,pdmc.yaml'; - used imperative mode in commit description; - renamed mchp,pdmc.h to microchip,pdmc.h; - fixed 'title' to represent HW; - made 'compatible' first property; - s/microhpone/microphone - none name in example set to 'sound' .../bindings/sound/microchip,pdmc.yaml | 100 ++++++++++++++++++ include/dt-bindings/sound/microchip,pdmc.h | 13 +++ 2 files changed, 113 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/microchip,pdmc.yaml create mode 100644 include/dt-bindings/sound/microchip,pdmc.h diff --git a/Documentation/devicetree/bindings/sound/microchip,pdmc.yaml b/Documentation/devicetree/bindings/sound/microchip,pdmc.yaml new file mode 100644 index 000000000000..04414eb4ada9 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/microchip,pdmc.yaml @@ -0,0 +1,100 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/microchip,pdmc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip Pulse Density Microphone Controller + +maintainers: + - Codrin Ciubotariu + +description: + The Microchip Pulse Density Microphone Controller (PDMC) interfaces up to 4 + digital microphones having Pulse Density Modulated (PDM) outputs. + +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 + +additionalProperties: false + +examples: + - | + #include + #include + #include + #include + + pdmc: sound@e1608000 { + compatible = "microchip,sama7g5-pdmc"; + reg = <0xe1608000 0x4000>; + #sound-dai-cells = <0>; + interrupts = ; + 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 = , + , + , + ; + }; diff --git a/include/dt-bindings/sound/microchip,pdmc.h b/include/dt-bindings/sound/microchip,pdmc.h new file mode 100644 index 000000000000..96cde94ce74f --- /dev/null +++ b/include/dt-bindings/sound/microchip,pdmc.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __DT_BINDINGS_MICROCHIP_PDMC_H__ +#define __DT_BINDINGS_MICROCHIP_PDMC_H__ + +/* PDM microphone's pin placement */ +#define MCHP_PDMC_DS0 0 +#define MCHP_PDMC_DS1 1 + +/* PDM microphone clock edge sampling */ +#define MCHP_PDMC_CLK_POSITIVE 0 +#define MCHP_PDMC_CLK_NEGATIVE 1 + +#endif /* __DT_BINDINGS_MICROCHIP_PDMC_H__ */ -- 2.32.0