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 3FE4AEE49AD for ; Sat, 19 Aug 2023 08:04:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344663AbjHSIEW (ORCPT ); Sat, 19 Aug 2023 04:04:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38968 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344711AbjHSIEK (ORCPT ); Sat, 19 Aug 2023 04:04:10 -0400 Received: from mail-ej1-x630.google.com (mail-ej1-x630.google.com [IPv6:2a00:1450:4864:20::630]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DBFED170E for ; Sat, 19 Aug 2023 01:04:08 -0700 (PDT) Received: by mail-ej1-x630.google.com with SMTP id a640c23a62f3a-99df11828c6so575892666b.1 for ; Sat, 19 Aug 2023 01:04:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1692432247; x=1693037047; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=deRfy4MmWhNo/qJGo68CHwTkl2+R+5alRlJweBHZEfs=; b=aCgvU0CiVM/aEDBPDLFu+sF3l8qpjC4PkigK2hLvR3K7RKhfJxz3HS/75ABvsvSWoN 3rs+wNfGBianQpt1CpPz2wuk0SMhpaO4hNJVHxGUWCddxhtAjqehLYh2eeF6Cd2gfprt u99N5o2xA+OV9mkJEvHL8v9Sml9QxHE5RSYlEoG19qytqLjYIQrrBy0qzFM2unicwyLa mN/wOmmb8gJoRVSAd/vndrNCjmRKhfuPY1Oj6vJIcmhGH8NULGtsPXJiRwsfqQijm+12 V21avF6ka3kRNfArK+MavM1X5UQ8aoJ14k4YvOe8lMxAi1ufEq9rfBchTMt6jERjp1tv sIKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692432247; x=1693037047; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=deRfy4MmWhNo/qJGo68CHwTkl2+R+5alRlJweBHZEfs=; b=W5vjNrm+U42/wRIl7hkTOuHISB+UMpHI0B858N+hJX0d3Y7I1lHsn6kyusVvEJ2EIf Kt7GmOMKoz1I5uZpUowxgaTPxMEDIKL3sUc5tw+smlsNvD/m/PdCzZU8UuD3FawaTxtg fFyS23TGQ2th3hBAEwFq8IOUcl7mYUXMPFGtw9wVciODfI9IucCYFIaggETBlMy8FQ9F GsrizE965OFG5eMKhXSNmoKf4bm81i3Eog9KauyDJWoO/4HA2Z6kL3XOEeAe/I51ZuVg 5RXaFhow9QDRZVy0+9bbj/PPrLPs8mg2AzBSPyhTlMw7WtE/PfOBKJv3F1yYX2Qev+Mq 7kHg== X-Gm-Message-State: AOJu0YyJhu6GT5KQVae+Vvc8Q1ZUnzABkxm/2iShBwZxOY82CT7MosSK XN4jWzP1h3KSWKENDke/3onMfQ== X-Google-Smtp-Source: AGHT+IHBzvmTwnBZ67sD/6WjMdA5xmu96I7L2+RI5CGp7G/r5zU7hudwu/IAczFJtEBUGVFcm5NiSw== X-Received: by 2002:a17:906:8a73:b0:99d:e417:d6fb with SMTP id hy19-20020a1709068a7300b0099de417d6fbmr1522299ejc.25.1692432247428; Sat, 19 Aug 2023 01:04:07 -0700 (PDT) Received: from [192.168.0.22] ([77.252.47.198]) by smtp.gmail.com with ESMTPSA id u22-20020a170906409600b009929ab17be0sm2265161ejj.162.2023.08.19.01.04.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 19 Aug 2023 01:04:06 -0700 (PDT) Message-ID: <9927403d-6dd9-3e5e-8f9d-f38e6640f95f@linaro.org> Date: Sat, 19 Aug 2023 10:04:05 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.14.0 Subject: Re: [PATCH 1/2] dt-bindings: power: Add regulator-pd yaml file Content-Language: en-US To: Shenwei Wang , Rob Herring Cc: Krzysztof Kozlowski , Conor Dooley , Ulf Hansson , Liam Girdwood , Mark Brown , "imx@lists.linux.dev" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , dl-linux-imx References: <20230818153446.1076027-1-shenwei.wang@nxp.com> From: Krzysztof Kozlowski In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 18/08/2023 23:06, Shenwei Wang wrote: > > >> -----Original Message----- >> From: Rob Herring >> Sent: Friday, August 18, 2023 3:52 PM >> To: Shenwei Wang >> Cc: Krzysztof Kozlowski ; Conor Dooley >> ; Ulf Hansson ; Liam Girdwood >> ; Mark Brown ; >> imx@lists.linux.dev; devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; >> dl-linux-imx >> Subject: [EXT] Re: [PATCH 1/2] dt-bindings: power: Add regulator-pd yaml file >>> >>> Documenting the regulator power domain properties and usage examples. >> >> This needs to answer why we need this. >> >> It looks like just an abstraction layer to make regulators look like a power >> domain. >> > > Yes, it is a wrapper that allows using regulators as a power domain. This removes > the need to add regulator operating code in each consumer device driver. As a power > domain, the regulator will be managed automatically by the device driver framework > and PM subsystem. > > This is very useful when a device's power is controlled by a GPIO pin, which currently > requires using the fixed-regulator to achieve the same purpose. However, the > fixed-regulator approach may have to add code in the driver in order to use it. Why do you start discussion from zero ignoring all previous history of this patchset? https://lore.kernel.org/all/20220609150851.23084-1-max.oss.09@gmail.com/ Best regards, Krzysztof