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 1D249C433FE for ; Fri, 1 Apr 2022 20:36:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352495AbiDAUiV (ORCPT ); Fri, 1 Apr 2022 16:38:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352682AbiDAUh6 (ORCPT ); Fri, 1 Apr 2022 16:37:58 -0400 Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E4B3E137019 for ; Fri, 1 Apr 2022 13:36:07 -0700 (PDT) Received: by mail-ed1-x52f.google.com with SMTP id b24so4284730edu.10 for ; Fri, 01 Apr 2022 13:36:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=message-id:date:mime-version:user-agent:subject:content-language:to :references:from:in-reply-to:content-transfer-encoding; bh=teWkJ4CoTDO5mMTrqx6InWM0rnqqHmOdFQ5U6F0SH00=; b=sslPqovAkCG/x1GpP6Loog5grP3TlZXipIhu/hTWV0pzafGbuGVekkVaUL++Je5ikN tM/8QWAWlF6nrNclOfDQEk4QBCecTh50OFxY03V2DXM4AjQfkv+xGM3BkHQExUCxPXHF r7aOl5H3nDjIRWyc2yN7FOg73ugzr8pGIL2v09kt8ztmoRfRc9q0axgPi1MnwXFiBNfF A43nEClwt1GIJcr3lz9OYSlsEHnj4EWD50yV49YE29idZBMiGJp2XWDnu6xJ6HurOJ7q 5ZK/SgK44qlFM2PhoRAqr5RQN/NuSAcDM6mYIUjOUsvGdr+KHacS/s7ezYJW/NjS08ux h4zw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=teWkJ4CoTDO5mMTrqx6InWM0rnqqHmOdFQ5U6F0SH00=; b=5usr1shnDyg14uE/cCNscwy/oZoZXif1KfGd711y+AkdoDsCJ+h01UH4qwO0vGkmyB JjzNQQnvmRxt0+L3qCEdeWoQJqSLReVeS/IxG8d48GXEO/tb4/fARpvpnwywKlyLnQ2+ HPxNP3JpXrdg+shC2fFQIhGdwHl+gSpReskA4+DHal/9yIStdG0yh2iKnCvQZ+eFP0dV aUSzo1eewRg1aaanxc+dCFLbX9A95/0XbWNnqYI5tDtcEADXYUHxviRjqdyTvyRqwk8V MTDSzmg2E/rqGPrUupINIXQ5qpjMMHtt/YcEACU6dbY8ZEuVXRcxv+uSznP4Sde7kDfq vytQ== X-Gm-Message-State: AOAM530bQKwzX7tWjt4VOJNf+eBkA5YqCqQ96sp1DRqiv0cDIEpDr1qf N//5qjUXyE2OzylXku6Gcs6N2gMVbMZxQDIo X-Google-Smtp-Source: ABdhPJwveJo4luP3uof9lK/lq+qxgaM5BCB8OpF6wk47aGBGg69GVrOyISr7+SrsCRtn2V8VljTOxQ== X-Received: by 2002:a05:6402:5146:b0:415:fd95:6afa with SMTP id n6-20020a056402514600b00415fd956afamr22919059edd.200.1648845365450; Fri, 01 Apr 2022 13:36:05 -0700 (PDT) Received: from [192.168.0.170] (xdsl-188-155-201-27.adslplus.ch. [188.155.201.27]) by smtp.gmail.com with ESMTPSA id u4-20020aa7db84000000b004136c2c357csm1595857edt.70.2022.04.01.13.36.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 01 Apr 2022 13:36:04 -0700 (PDT) Message-ID: <1a26fd19-0f5e-d9f1-08e7-c5e3edd610a1@linaro.org> Date: Fri, 1 Apr 2022 22:36:04 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [RFT PATCH 0/2] regulator: richtek,rt4801: use existing ena_gpiod feature Content-Language: en-US To: =?UTF-8?B?Y3lfaHVhbmco6buD5ZWf5Y6fKQ==?= , "lgirdwood@gmail.com" , "linux-kernel@vger.kernel.org" , "krzk+dt@kernel.org" , "broonie@kernel.org" , "robh+dt@kernel.org" , "devicetree@vger.kernel.org" References: <20220401154237.1061331-1-krzysztof.kozlowski@linaro.org> <1648831895.12596.6.camel@richtek.com> From: Krzysztof Kozlowski In-Reply-To: <1648831895.12596.6.camel@richtek.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/04/2022 18:51, cy_huang(黃啟原) wrote: > > 於 五，2022-04-01 於 17:42 +0200，Krzysztof Kozlowski 提到： >> Hi, >> >> Not tested. >> >> Follow up of discussion: >> https://lore.kernel.org/all/2d124d53-1f36-5315-3877-af8f8ad5f824@linaro.org/#t >> > > > > If RT4801 enable-gpio both go from high to low, the voltage reg will be > reset, and I2C cannot be accessibele. > This patch can be used to individually control enable for DSVP and DSVN, > but the above i2c behavior is not considered. > You can check rt4801_enable/rt4801_disable for the details. Ah, so this is why this custom enable methods is there (pus bitmap etc). Then the core ena_gpiod cannot be used, although still we want to move on from two GPIOs in one enable-gpios property. Best regards, Krzysztof