Received: by 2002:a9a:4c47:0:b029:116:c383:538 with SMTP id u7csp7578412lko; Fri, 30 Jul 2021 06:53:43 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxWTazwdTOEER6gxN3dhwZHWFpdra0+MLZeX7Uv+DFoHrhHbbfLSulPrvpBfxp6eU87tr7E X-Received: by 2002:a17:906:6050:: with SMTP id p16mr2674676ejj.43.1627653222954; Fri, 30 Jul 2021 06:53:42 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1627653222; cv=none; d=google.com; s=arc-20160816; b=FZIyzK84JE4ap2XHJ3UwDESUkhO4lljy6Lzw4gl91t3xCCP7ZBGA5GrJKMKzMqEB17 phWZdP0IRHz9ufX2BdL+t8ydzaym4MO/7atQEd0eH78RAOZ51ARMUsCC4pKfAy1Q1DrH Ob31DOaD/1ETpWZ+wmC4skRk7PDYMn9UUci9qV7Q++1GcM/TdYhSUjCWoEHzrneFclsp zixSJcGCc9Pcwtfa0NP0WB824SIM4YkPYSKcir8cdzPSwQD6JI2eSXQ2VzSHioghzjby VbWQYCMOTgAkXU8PbaHumHDIwu7xdGEPxmwwt7mxbyylPh0L3UrzdguTDLq6qGIJWU5x 32Eg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:subject:message-id:date:from:in-reply-to :references:mime-version:dkim-signature; bh=MKFVB3IPR9lkSCEivG2PKNtFQz06R+D8dqrPSZQVhIs=; b=oJhLk5K8F9wp+vxpDlwMzgwgQGjHBQm9pNH9iKpmDajckBDgmSNFSEHybkXza8AAiD pYAo0CpAGBzsmDs4UhPVrVCeLO+2MfL3FpneVjB36ElMxT3QyIjiO6BPuXSY5vw8cx2o 07jmzOtcMJm/OwGue+XTiRZrLY9S4hvREaKImYvXVh79wMcrkXDO/IaZNeS7wOxuIRDm x/fC/AnLRBlQJbsTgx1P8d3uUAZu/EuUhhujUbV1CH9XP6RiDtVJd8+9iT+xRLJHI513 Lx/L73MxyRV1otW95A4l4uytsu3W210SKPSTcOLU78Uaf+175YRwk9f3YydOIvNkfRs6 j07A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@chromium.org header.s=google header.b=MEbABptq; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=chromium.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id y7si1677066edw.436.2021.07.30.06.53.18; Fri, 30 Jul 2021 06:53:42 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@chromium.org header.s=google header.b=MEbABptq; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=chromium.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239018AbhG3Ntb (ORCPT + 99 others); Fri, 30 Jul 2021 09:49:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58338 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231137AbhG3Nta (ORCPT ); Fri, 30 Jul 2021 09:49:30 -0400 Received: from mail-qt1-x82e.google.com (mail-qt1-x82e.google.com [IPv6:2607:f8b0:4864:20::82e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F6C7C06175F for ; Fri, 30 Jul 2021 06:49:24 -0700 (PDT) Received: by mail-qt1-x82e.google.com with SMTP id a12so6419502qtb.2 for ; Fri, 30 Jul 2021 06:49:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=MKFVB3IPR9lkSCEivG2PKNtFQz06R+D8dqrPSZQVhIs=; b=MEbABptqXJglM26bxbD6CXo+dI7tsy8Ef6mKgr0+/TMZtm6CaLpLI83wRe6CtDssMY cGrKlT8wH4v18FxmQJ5UKSyQwjt7aPP5UxUNzNEQLXCLZk8BsgyYxmJcfjJSSJcjTnhh +qe1EKdSoyzxiUawP0TyNaR3uCQQRcxX+DYLE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=MKFVB3IPR9lkSCEivG2PKNtFQz06R+D8dqrPSZQVhIs=; b=St3iuIFwI3wVwfy9aB8X5yXWWS/3nVAJznvJx/4WK9ihhudbvJtfnDu0NRUsB4CDBc eAbX59hBF94eC1rvIJXwh7ilI6a59RF/b/WS6tDQ8PGq2cUkq5T6AXoDh6jkGwrnfztx qjmtR4Aqycteesu+VSpDnLEqeYdutm3DrL50sWABKYgEoT+r7rOcAxxG42PALdHagrwC oGwlANwGVZr35/lqlxpoKYTwPhG8yU8qcXjc+AT6++mhjAJ1ORgGe1NYxH6zB+nJsJ78 O9DuDNVmCRMpXmXXCB8pUcBfEL2/t2Dp1uFhzQn5eBccblrDQ9HBsflEgMf4EEEUTMCF coHA== X-Gm-Message-State: AOAM531GScjiM5NXbva2QbPjWJM4HGfYyPnyR+BRTlsO7czZOLGoDGSr 8ltAt4O6oQvJmNUyl2s+REI7TpeEkGB9Wg== X-Received: by 2002:ac8:47d9:: with SMTP id d25mr2314124qtr.277.1627652963215; Fri, 30 Jul 2021 06:49:23 -0700 (PDT) Received: from mail-yb1-f173.google.com (mail-yb1-f173.google.com. [209.85.219.173]) by smtp.gmail.com with ESMTPSA id y2sm923218qkd.38.2021.07.30.06.49.22 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 30 Jul 2021 06:49:22 -0700 (PDT) Received: by mail-yb1-f173.google.com with SMTP id w17so16048781ybl.11 for ; Fri, 30 Jul 2021 06:49:22 -0700 (PDT) X-Received: by 2002:a25:6088:: with SMTP id u130mr3375680ybb.257.1627652961581; Fri, 30 Jul 2021 06:49:21 -0700 (PDT) MIME-Version: 1.0 References: <1627627573-32454-1-git-send-email-rnayak@codeaurora.org> <1627627573-32454-3-git-send-email-rnayak@codeaurora.org> In-Reply-To: <1627627573-32454-3-git-send-email-rnayak@codeaurora.org> From: Doug Anderson Date: Fri, 30 Jul 2021 06:49:10 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v3 2/4] nvmem: qfprom: Fix up qfprom_disable_fuse_blowing() ordering To: Rajendra Nayak Cc: Andy Gross , Bjorn Andersson , Srinivas Kandagatla , Rob Herring , linux-arm-msm , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , LKML , "Ravi Kumar Bokka (Temp)" Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On Thu, Jul 29, 2021 at 11:46 PM Rajendra Nayak wrote: > > qfprom_disable_fuse_blowing() disables a bunch of resources, > and then does a few register writes in the 'conf' address > space. > It works perhaps because the resources are needed only for the > 'raw' register space writes, and that the 'conf' space allows > read/writes regardless. > However that makes the code look confusing, so just move the > register writes before turning off the resources in the > function. > > Signed-off-by: Rajendra Nayak > --- > drivers/nvmem/qfprom.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/nvmem/qfprom.c b/drivers/nvmem/qfprom.c > index 81fbad5..b0ca4c6 100644 > --- a/drivers/nvmem/qfprom.c > +++ b/drivers/nvmem/qfprom.c > @@ -139,6 +139,9 @@ static void qfprom_disable_fuse_blowing(const struct qfprom_priv *priv, > { > int ret; > > + writel(old->timer_val, priv->qfpconf + QFPROM_BLOW_TIMER_OFFSET); > + writel(old->accel_val, priv->qfpconf + QFPROM_ACCEL_OFFSET); > + > /* > * This may be a shared rail and may be able to run at a lower rate > * when we're not blowing fuses. At the moment, the regulator framework > @@ -159,9 +162,6 @@ static void qfprom_disable_fuse_blowing(const struct qfprom_priv *priv, > "Failed to set clock rate for disable (ignoring)\n"); > > clk_disable_unprepare(priv->secclk); > - > - writel(old->timer_val, priv->qfpconf + QFPROM_BLOW_TIMER_OFFSET); > - writel(old->accel_val, priv->qfpconf + QFPROM_ACCEL_OFFSET); > } I think it doesn't matter since all of these resources are just needed for burning fuses, but I agree that what you have here makes more logical sense and makes the function less confusing. Reviewed-by: Douglas Anderson