From patchwork Fri Mar 4 18:17:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Codrin Ciubotariu X-Patchwork-Id: 12769773 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0DD2DC433EF for ; Fri, 4 Mar 2022 18:19:18 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 50A071F44; Fri, 4 Mar 2022 19:18:26 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 50A071F44 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1646417956; bh=3K/f0lywjBs7m0IsU3YQYGlkUI2bCsgf5Tt3pD3ngwk=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=SYxK8StKOr38qlCECz7ugQ9iHaYewbvI2awxxMri06Vf/xSikrQoZKq4VtqwNKQsf 29GvFKySdhGMyOrvkngd0qHdn+5FAWUdOgMSTrI0m3aC0OuI+PyKEP6TvSShfJBo7q V5gLh6kC5YaeWnlUarnvUSl3VQVw0yXYZO6pLrew= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id E71F5F801EC; Fri, 4 Mar 2022 19:18:25 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 77EFDF801EC; Fri, 4 Mar 2022 19:18:24 +0100 (CET) Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 23065F800F0 for ; Fri, 4 Mar 2022 19:18:18 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 23065F800F0 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="0+hAGhA1" DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1646417902; x=1677953902; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=3K/f0lywjBs7m0IsU3YQYGlkUI2bCsgf5Tt3pD3ngwk=; b=0+hAGhA1f1fOChaXZcbhcUOKPQT7WKztZXpQ5ut1YNkDiJ5UaBojFPKj XWBu52AspC4hDUfPZtrrTKT/z2Clm1njTup6O4926+yhVqe3fiA9J9Mr5 jy7MuUzRYOKX4MkAR0/pJ/u6XbnVzFw+nqbovUZIWXexjTrYo0j4obkFN bJtJh553UEjkH4sRzRPT1M799bTsECCis2K4MSWNr+5D5XjR6hodcJGk6 Bl6Es8jjXGWInk4eINmm5IFKAaowh7AJNBNc982/0pHU+wrgvCHyA9aIZ CnAjUdYd9VmxdjJFXPefHcJiFh0CKQKHN9LxhVVKoqe3vfquQ7QKrRSGf w==; X-IronPort-AV: E=Sophos;i="5.90,155,1643698800"; d="scan'208";a="150898114" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa2.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 04 Mar 2022 11:18:16 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) 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; Fri, 4 Mar 2022 11:18:16 -0700 Received: from rob-ult-m19940.amer.actel.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Fri, 4 Mar 2022 11:18:13 -0700 From: Codrin Ciubotariu To: , , , Subject: [PATCH 0/6] Add driver for SAMA7G5's PDMC Date: Fri, 4 Mar 2022 20:17:50 +0200 Message-ID: <20220304181756.1894561-1-codrin.ciubotariu@microchip.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Cc: lars@metafoo.de, nicolas.ferre@microchip.com, robh+dt@kernel.org, tiwai@suse.com, broonie@kernel.org, Codrin Ciubotariu 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" This patch series adds support for Pulse Density Microphone Controller (PDMC), present on Microchip's SAMA7G5. The PDMC interfaces up to 4 digital microphones having Pulse Density Modulated (PDM) outputs. It generates a single clock line and samples 1 or 2 data lines. The signal path includes an audio grade programmable decimation filter and outputs 24-bit audio words. The source of each channel can be independently defined as PDMC_DS0 or PDMC_DS1, sampled at the rising or falling edge of PDMC_CLK. The patch series starts with a fix on the ASoC DMA engine support. Then continues with the bindings and the driver of PDMC. It is followed by the DT nodes for SAMA7G5 and SAMA7G5-EK. In the end, the drivers for PDMC and PDM microphones are enabled in sama7_defconfig. Codrin Ciubotariu (6): ASoC: dmaengine: do not use a NULL prepare_slave_config() callback ASoC: add DT bindings for Microchip PDMC ASoC: atmel: mchp-pdmc: add PDMC driver ARM: dts: at91: sama7g5: add nodes for PDMC ARM: dts: at91: sama7g5ek: add node for PDMC0 ARM: configs: at91: sama7_defconfig: add MCHP PDMC and DMIC drivers .../devicetree/bindings/sound/mchp,pdmc.yaml | 99 ++ arch/arm/boot/dts/at91-sama7g5ek.dts | 21 +- arch/arm/boot/dts/sama7g5.dtsi | 24 + arch/arm/configs/sama7_defconfig | 2 + include/dt-bindings/sound/mchp,pdmc.h | 13 + sound/soc/atmel/Kconfig | 16 + sound/soc/atmel/Makefile | 2 + sound/soc/atmel/mchp-pdmc.c | 1084 +++++++++++++++++ sound/soc/soc-generic-dmaengine-pcm.c | 6 +- 9 files changed, 1263 insertions(+), 4 deletions(-) create mode 100644 Documentation/devicetree/bindings/sound/mchp,pdmc.yaml create mode 100644 include/dt-bindings/sound/mchp,pdmc.h create mode 100644 sound/soc/atmel/mchp-pdmc.c