From nobody Sun Sep 14 22:12:03 2025 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 A4AA6C46467 for ; Wed, 18 Jan 2023 16:11:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231225AbjARQKH (ORCPT ); Wed, 18 Jan 2023 11:10:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42990 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230423AbjARQJG (ORCPT ); Wed, 18 Jan 2023 11:09:06 -0500 Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D5EB4743D for ; Wed, 18 Jan 2023 08:05:19 -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 30IEEjlB023722; Wed, 18 Jan 2023 10:05:04 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=PODMain02222019; bh=4DC3FmrYnv3q+s9o9tP2DW9U1wOvwrAGTeF6A0jvBHQ=; b=SoRyZtEWS0ZMCaGg/MbazhydcTToCQHnCi7BeNte9Dd5nEPp9FoRk1I1GjIm0ph4AEvf 7mE7JIM2JYkMkwRvBTeEQttvDyUeaJCZACz39yzJHInM9sRlF7CuUZQWvSGhJ9zPGNXt iAy5QLIJnSrFC7Gnl8X9HqkhmJ8gNvG/orTs0ymCic3D1CJno3nWn4m+c/K7cdXRA+xm wy8cfNVxZkjLapoHGEr9O+Z4QDSSH9bjY7c5StuipDFnzVClxucUjAlHrR42oWlAb5Lf pF99rI61ds6Dw3Ko4hj8czopOjiUHAbydhs4ZjlxrZNkTGHx+e73EYZaJaO1uTvQR+ph Zg== Received: from ediex02.ad.cirrus.com ([84.19.233.68]) by mx0b-001ae601.pphosted.com (PPS) with ESMTPS id 3n3spx6vk8-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 18 Jan 2023 10:05:04 -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 15.2.1118.21; Wed, 18 Jan 2023 10:04:58 -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 15.2.1118.21 via Frontend Transport; Wed, 18 Jan 2023 10:04:58 -0600 Received: from sbinding-cirrus-dsktp2.ad.cirrus.com (unknown [198.90.202.160]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 1A430B12; Wed, 18 Jan 2023 16:04:58 +0000 (UTC) From: Stefan Binding To: Mark Brown , Pierre-Louis Bossart CC: , , , Stefan Binding Subject: [PATCH v2 8/8] ASoC: cs42l42: Wait for debounce interval after resume Date: Wed, 18 Jan 2023 16:04:52 +0000 Message-ID: <20230118160452.2385494-9-sbinding@opensource.cirrus.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230118160452.2385494-1-sbinding@opensource.cirrus.com> References: <20230118160452.2385494-1-sbinding@opensource.cirrus.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-GUID: WuLPwJpdk5cA3HpxRI6bjl3uXaEa2-Gz X-Proofpoint-ORIG-GUID: WuLPwJpdk5cA3HpxRI6bjl3uXaEa2-Gz X-Proofpoint-Spam-Reason: safe Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Since clock stop causes bus reset on Intel controllers, we need to wait for the debounce interval on resume, to ensure all the interrupt status registers are set correctly. Signed-off-by: Stefan Binding --- sound/soc/codecs/cs42l42-sdw.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/cs42l42-sdw.c b/sound/soc/codecs/cs42l42-sdw.c index 67800b275e422..27653ea0f947c 100644 --- a/sound/soc/codecs/cs42l42-sdw.c +++ b/sound/soc/codecs/cs42l42-sdw.c @@ -451,14 +451,22 @@ static int __maybe_unused cs42l42_sdw_handle_unattach= (struct cs42l42_private *cs =20 static int __maybe_unused cs42l42_sdw_runtime_resume(struct device *dev) { + static const unsigned int ts_dbnce_ms[] =3D { 0, 125, 250, 500, 750, 1000= , 1250, 1500}; struct cs42l42_private *cs42l42 =3D dev_get_drvdata(dev); + unsigned int dbnce; int ret; =20 dev_dbg(dev, "Runtime resume\n"); =20 ret =3D cs42l42_sdw_handle_unattach(cs42l42); - if (ret < 0) + if (ret < 0) { return ret; + } else if (ret > 0) { + dbnce =3D max(cs42l42->ts_dbnc_rise, cs42l42->ts_dbnc_fall); + + if (dbnce > 0) + msleep(ts_dbnce_ms[dbnce]); + } =20 regcache_cache_only(cs42l42->regmap, false); =20 --=20 2.34.1