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 3FB3DC433EF for ; Mon, 6 Dec 2021 13:03:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243746AbhLFNHG (ORCPT ); Mon, 6 Dec 2021 08:07:06 -0500 Received: from alexa-out.qualcomm.com ([129.46.98.28]:63777 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243721AbhLFNHF (ORCPT ); Mon, 6 Dec 2021 08:07:05 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1638795817; x=1670331817; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=fN+AGjvGVQF3YmxSDAvtPepi7zeO3Ze+Kbg1rbOx7BU=; b=SMOqMD2E3SyU4PfIJOXUWH90Z056NT+0nzOOsdQroJ4RSdbupRL+tR+w lA924fERkvFBO/buSJ+SGFIZ4wjWm2NJKsQZtjI7/UyMIhv7/+5KRGDre RpEhUCXVibuNmFgmtToiEJaPanB3e7wPuGSfVQW0+tPTOEI3ACsjls9Dx 8=; Received: from ironmsg07-lv.qualcomm.com ([10.47.202.151]) by alexa-out.qualcomm.com with ESMTP; 06 Dec 2021 05:03:36 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg07-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Dec 2021 05:03:35 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Mon, 6 Dec 2021 05:03:35 -0800 Received: from [10.216.22.188] (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Mon, 6 Dec 2021 05:03:30 -0800 Subject: Re: [PATCH V4 1/6] dt-bindings: regulator: Add "regulator-min-dropout-voltage-microvolt" To: Mark Brown CC: Bjorn Andersson , Rob Herring , Liam Girdwood , , , , Das Srinagesh , , "Lee Jones" , , References: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> <1637314953-4215-2-git-send-email-quic_c_skakit@quicinc.com> From: "Satya Priya Kakitapalli (Temp)" Message-ID: Date: Mon, 6 Dec 2021 18:33:26 +0530 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/25/2021 8:47 PM, Mark Brown wrote: > On Fri, Nov 19, 2021 at 03:12:28PM +0530, Satya Priya wrote: > >> + regulator-min-dropout-voltage-microvolt: >> + description: Specifies the minimum voltage in microvolts that the >> + parent supply regulator must output, above the output of this regulator. > Usually this is a fixed property of the regulator rather than something > that varies per board - why have a DT property? The min-dropout value (headroom) varies with boards, that's why we have a DT property for it. We overwrite the default value in driver with actual value read from DT