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 1E338C001B2 for ; Wed, 14 Dec 2022 13:11:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238600AbiLNNLY (ORCPT ); Wed, 14 Dec 2022 08:11:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39858 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238567AbiLNNLN (ORCPT ); Wed, 14 Dec 2022 08:11:13 -0500 Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 361CB201B7 for ; Wed, 14 Dec 2022 05:11:06 -0800 (PST) Received: from pps.filterd (m0077474.ppops.net [127.0.0.1]) by mx0b-001ae601.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2BEAosGP030155; Wed, 14 Dec 2022 07:10:16 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=PODMain02222019; bh=uqTM1X1FgdfVNHTySLwZxLVD1Clcyid2R85NS87Xe08=; b=OnEhJX3LRlKcfOVP9tmTc8nhffaYoPXsU5e9ykqT72GXzu7qsy2ojgMIxQAwMQII2r2w iPz+2n4jbbr1hOJeMwftf3Ik4xs25iyE+C6B/hJ2fmNcpLdVfA9ukb4omyG4jjV1iKMg XQvmh0/2XDbrQKRkERoLaOl/ob90KwdeiMext1H1Bpp2nj422t7um9IVGMxVE/wht9Ht 4dAPzA7O26bZUZf3WacQFacKEJnXMMHzJnJU+yhHgI5GJg6Svn/Ho/RqZ+vUReaJhEMw jAD7SmEpfAHs1FOtPRsqTaWHD+ddc+Xm4f/+PKhD9+2aS/GJX+jjGRnUhfAq53ah6dp5 jA== Received: from ediex02.ad.cirrus.com ([84.19.233.68]) by mx0b-001ae601.pphosted.com (PPS) with ESMTPS id 3mf6rh8dhf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 14 Dec 2022 07:10:16 -0600 Received: from ediex01.ad.cirrus.com (198.61.84.80) by ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.20; Wed, 14 Dec 2022 07:10:14 -0600 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.2.1118.20 via Frontend Transport; Wed, 14 Dec 2022 07:10:14 -0600 Received: from ediswmail.ad.cirrus.com (ediswmail.ad.cirrus.com [198.61.86.93]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 5D61711CB; Wed, 14 Dec 2022 13:10:14 +0000 (UTC) Date: Wed, 14 Dec 2022 13:10:14 +0000 From: Charles Keepax To: Lukasz Majewski CC: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Stephen Kitt , , , Subject: Re: [PATCH 4/4] ASoC: wm8940: Read chip ID when wm8940 codec probing Message-ID: <20221214131014.GO105268@ediswmail.ad.cirrus.com> References: <20221214123743.3713843-1-lukma@denx.de> <20221214123743.3713843-5-lukma@denx.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20221214123743.3713843-5-lukma@denx.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-Proofpoint-ORIG-GUID: cMSJ_BuhSNqGoxW1BWcSdrrFv3uT8ncy X-Proofpoint-GUID: cMSJ_BuhSNqGoxW1BWcSdrrFv3uT8ncy X-Proofpoint-Spam-Reason: safe Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 14, 2022 at 01:37:43PM +0100, Lukasz Majewski wrote: > The wm8940 provides the chip ID information via I2C. In this > patch this information is read and if not matching expected > value, the probe function is aborted. > > This prevents from using (i.e. inserting) other wm89* modules > which use the sam I2C bus address. > > Signed-off-by: Lukasz Majewski > --- Acked-by: Charles Keepax Thanks, Charles