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 X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C8F3C433DF for ; Fri, 29 May 2020 18:16:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 28DC32074D for ; Fri, 29 May 2020 18:16:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590776172; bh=GH7xgOfWGLC1xYWHZL51BlZXClwRjmPTGXTEkgGZCAc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=A533eYlXb8oKsqU0WKWdhSAethKHgZpDpkziVE80GJKcQoyqI58BSkXQbvNfYTLL5 af6IAZvgQ3GP28EzSNMpbXk4iiNFaSa7kLLJM9Bv1xh5okl5jX1S3X0TaBU+fcbWQw rj87T+yCv16ICvPo8GHn0JNgDhLhMq+7mWA5sJWw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727013AbgE2SQL (ORCPT ); Fri, 29 May 2020 14:16:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:54620 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725839AbgE2SQL (ORCPT ); Fri, 29 May 2020 14:16:11 -0400 Received: from localhost (fw-tnat.cambridge.arm.com [217.140.96.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E96E3206A4; Fri, 29 May 2020 18:16:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590776170; bh=GH7xgOfWGLC1xYWHZL51BlZXClwRjmPTGXTEkgGZCAc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=rs/5+UaBczGURiLrYQDpbv1FEsswVSL+V7v/G+hW1TcMvv846K+Vqn5aLBaf0Zth3 fKZGLUa+ZDpzeu3pWLeubWt+46pbK9QSLhmRNRxYJwAmddJfx/XAE+WX2bhO/qkD1V RDEIci3V4TGyCD05zXZeC4PH9tOmCjRw2P5giNv4= Date: Fri, 29 May 2020 19:16:06 +0100 From: Mark Brown To: Tzung-Bi Shih Cc: Jiaxin Yu , Liam Girdwood , Takashi Iwai , Matthias Brugger , Hariprasad Kelam , ALSA development , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Linux Kernel Mailing List , howie.huang@mediatek.com Subject: Re: [PATCH] ASoC: mediatek: mt6358: support DMIC one-wire mode Message-ID: <20200529181606.GU4610@sirena.org.uk> References: <1590750293-12769-1-git-send-email-jiaxin.yu@mediatek.com> <20200529110915.GH4610@sirena.org.uk> <20200529130539.GK4610@sirena.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="oP9at/Ymg5VWhwKB" Content-Disposition: inline In-Reply-To: X-Cookie: The Killer Ducks are coming!!! User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --oP9at/Ymg5VWhwKB Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sat, May 30, 2020 at 01:26:20AM +0800, Tzung-Bi Shih wrote: > On Fri, May 29, 2020 at 9:05 PM Mark Brown wrote: > > I thought that was normal for DMICs - is this selecting between left and > > right or something? > Not sure what is the common name but use the same context here. > MT6358 accepts up to 2 PDM wires for 2 DMICs. > If one wire mode is on, MT6358 only accepts 1 PDM wire. > If one wire mode is off, MT6358 merges L/R from 2 PDM wires into 1 > I2S-like to SoC. Oh, interesting - so it's essentially a mixer? Not seen that before but makes sense. In any case this definitely seems like a good fit for a DT property. --oP9at/Ymg5VWhwKB Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl7RUWYACgkQJNaLcl1U h9DzCAf/eSG8ftQqt2zLUXgVK2VdTkdi/4wwtHrEUTnLh92NVK3qVJo7AlDSmwxK nq/ophHJqVsYmeXUCott6BaJKspd6r+KnrnyJRupzBixtLTx573x7VdREPful5eW 6cVUHkoI0quLHqspblBrZFW0kvt6iwuol2dK0pIORn6rRiaaQlzB9kTmE1BI5Clt GZrYuFcCzsW7IHYLPWD3Mbl9IsTFius8mjWym4jiglkPFu+8c8bgXRLJE7wGgoGz x60eHOnNmXwuzOBkrao6njQPWLX+/jtRU5aw4mQ5csVzf662KRmsciNScxyWLHMV v00PW1FlfI9AGrtQdlSKb1UMyO+Rpg== =ODhy -----END PGP SIGNATURE----- --oP9at/Ymg5VWhwKB--