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 198F2C433F5 for ; Mon, 28 Mar 2022 14:59:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244200AbiC1PBI (ORCPT ); Mon, 28 Mar 2022 11:01:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55508 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229673AbiC1PBE (ORCPT ); Mon, 28 Mar 2022 11:01:04 -0400 Received: from mx0b-001ae601.pphosted.com (mx0a-001ae601.pphosted.com [67.231.149.25]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 069AD26AD0 for ; Mon, 28 Mar 2022 07:59:22 -0700 (PDT) Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.16.1.2/8.16.1.2) with ESMTP id 22SCt7aS027219; Mon, 28 Mar 2022 09:59:19 -0500 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=aTdabDc+MOUdf3dcfIPD18QE7B9eZZWrMQsMy8IrLEA=; b=mRnqt+0J9RX1kK+IkIS2GVbPMdf/Vj6JfdmUF7tGpwBOH7q+6/gF9LsdQ+soa+dYbirz rkAWaZRnMw69M5UNEId4j/Ow2F6lg3QJ+eS/W0wBosTPKrIhWgt46x48K9TGUndSDswG WoWl79Fh2ziKa5iI5qGCsr0WkdoQuLjHWadCfoB0703rVjeJlPZfYvjdG/qwF4r9PDsz D+wzROb5DxnTK/R6bKNPlcB6lHhYGDG5G3Bv1Sj7WNLugCIKKqSVKahvFrjoOMouC3bm 8IeYP5GfkayAsz/oefjL7+ENk1obrfAmJKt80ShR8xPGDjX4b8GvCx7+WsqnMS8x8DS6 Pg== Received: from ediex02.ad.cirrus.com ([84.19.233.68]) by mx0a-001ae601.pphosted.com (PPS) with ESMTPS id 3f2081axr4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Mon, 28 Mar 2022 09:59:19 -0500 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_128_GCM_SHA256) id 15.1.2375.24; Mon, 28 Mar 2022 15:59:17 +0100 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by EDIEX01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.1.2375.24 via Frontend Transport; Mon, 28 Mar 2022 15:59:17 +0100 Received: from ediswmail.ad.cirrus.com (ediswmail.ad.cirrus.com [198.61.86.93]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 58C07B16; Mon, 28 Mar 2022 14:59:17 +0000 (UTC) Date: Mon, 28 Mar 2022 14:59:17 +0000 From: Charles Keepax To: Mark Brown CC: Jonathan Bakker , Liam Girdwood , , Subject: Re: [PATCH v2] regulator: wm8994: Add an off-on delay for WM8994 variant Message-ID: <20220328145917.GJ38351@ediswmail.ad.cirrus.com> References: <20220328131132.GI38351@ediswmail.ad.cirrus.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Proofpoint-ORIG-GUID: xNp4kDYXu-uo4vNpiXkEe61_8BHXPpTY X-Proofpoint-GUID: xNp4kDYXu-uo4vNpiXkEe61_8BHXPpTY X-Proofpoint-Spam-Reason: safe Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 28, 2022 at 03:36:53PM +0100, Mark Brown wrote: > On Mon, Mar 28, 2022 at 01:11:32PM +0000, Charles Keepax wrote: > > > Part of me wonders if we should just apply it to 1811 and 8958 > > anyway, I suspect they have the same IP for the LDO and its just > > the datasheets never got updated. I had a go chasing the apps guys > > here but we are a little short on people who remember details of > > these parts. So I guess we trust the datasheets for now, unless > > you have any strong feelings, Mark? > > With something like this the on/off time may be a requirement of the > thing being powered rather than the regulator, the device might see > enough power loss to confuse state but not trip the power on reset. Aye a good point. I am certainly happy to stick with trusting the datasheets here. Thanks, Charles