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 X-Spam-Level: X-Spam-Status: No, score=-7.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EDA6BC433ED for ; Mon, 26 Apr 2021 12:02:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A13FA61139 for ; Mon, 26 Apr 2021 12:02:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231876AbhDZMCy (ORCPT ); Mon, 26 Apr 2021 08:02:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42090 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231550AbhDZMCy (ORCPT ); Mon, 26 Apr 2021 08:02:54 -0400 Received: from mail-wr1-x42a.google.com (mail-wr1-x42a.google.com [IPv6:2a00:1450:4864:20::42a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 14171C061574 for ; Mon, 26 Apr 2021 05:02:13 -0700 (PDT) Received: by mail-wr1-x42a.google.com with SMTP id r7so43599855wrm.1 for ; Mon, 26 Apr 2021 05:02:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=dlXiJtCn0s+aaDuctWLM7HtLWjJzy8K6ynFsRo1e9Mc=; b=KtUUkdpd9b1BZDqOUu9VsrBbLlN7/sRB8xKXqraMzWh8tLUOifgiF7gA5ROgD0XZZQ GC/kqdgAuNAYH05p6ilYOoCb6X/CU+07hlsFcz4HaboclAw3CGUWYYZdznKXenKWcitw CFIb/Ybo1NJQU5GJOnO+Vnxvz5vsOQeMuymOaEBnQcQ6GoVxgjvx1hgZly6xrY4tlm+o VdX+VADYdAm07kvq8/2MYHTCyX1i/8TSgX1kqPxJc/fh47Nz2+AoTkf5wHcxXwbgD7tR Q9eGc0I1M62Ss+mt85q8LTIYT3ziX+8TIkpYrVb9NpEBvuEoFa9AEXM45jSuwt+sSFYd uONw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=dlXiJtCn0s+aaDuctWLM7HtLWjJzy8K6ynFsRo1e9Mc=; b=UawYjnvuuy2L8zOZf8ypZHdkamQ6TUDogopyjmh4gFHBb4FDTF1KEFtiCYqEqLAjG3 RZdiWILkJDqfhiXj6CwXE5oss7VDBK06GCMk+wepUgrBbfKY3VVJUE2RbGeW7hCdecua 0yW09+9gxAdCbzR1GEh009cnU8zmpwOUzXIcsUHBMHeL8MDgroyMTECBVX7diXLTiCHr hpu8hGg6r/8876Buk6tUaeOrQV2Vfv9lXdBZBZPyQeANiJQvLQCsgcZk7GkFMnvEC16s UG6K40lA6QFtU9n0QdMyi76QCaiMVdjdiqvt6KF4c5tynQqRAyLZgzKuKnvwDSKnyO+6 Ot/A== X-Gm-Message-State: AOAM533dQz7ZvV2fBlX3RQPopSTLv3kO5pznPp24qaoHbWlKy8qtVh24 PkFwtbDMzp/WnRkqN8OXnfBvDA== X-Google-Smtp-Source: ABdhPJyTc2fkLuXmgK68TyYD8RdgPfGi1FfadAmiAGZHkC1QleJ5aJX5zoXJKuMXKY7liIRlAEXBww== X-Received: by 2002:a5d:6dc4:: with SMTP id d4mr23425336wrz.105.1619438531812; Mon, 26 Apr 2021 05:02:11 -0700 (PDT) Received: from [192.168.0.162] (188-141-3-169.dynamic.upc.ie. [188.141.3.169]) by smtp.gmail.com with ESMTPSA id d22sm7385598wrc.50.2021.04.26.05.02.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 26 Apr 2021 05:02:11 -0700 (PDT) Subject: Re: [PATCH] regulator: Fix current limit for QCOM PMIC VBUS To: Mark Brown , Bryan O'Donoghue Cc: agross@kernel.org, bjorn.andersson@linaro.org, lgirdwood@gmail.com, wcheng@codeaurora.org, linux-arm-msm@vger.kernel.org, dmitry.baryshkov@linaro.org References: <20210423160658.1542090-1-bryan.odonoghue@linaro.org> <20210423163203.GF5507@sirena.org.uk> <20210426115548.GA4590@sirena.org.uk> From: Bryan O'Donoghue Message-ID: Date: Mon, 26 Apr 2021 13:03:49 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 In-Reply-To: <20210426115548.GA4590@sirena.org.uk> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On 26/04/2021 12:55, Mark Brown wrote: > It may be out of spec for USB C (though I can see someone choosing a > limit of 2A to give headroom on a specified 1.5A limit, AIUI the limits > in USB are on the side drawing the current and there's no requirement > for the supplier to enforce the limit) but that doesn't mean that the > hardware has been designed in a way that makes it safe to just increase > the limit. I get your point, however, the downstream kernel i.e. the kernel that ships with the n-million qcom devices sets the limit to 3 amps. To my knowledge all qcom downstream hardware/software implementations based on the pm8150b set the 3amp limit so, what we are doing here is closing the gap in upstream. --- bod