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[23.128.96.37]) by mx.google.com with ESMTPS id m19-20020a637113000000b0056ba5e3f604si3406030pgc.352.2023.10.06.03.24.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Oct 2023 03:24:22 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) client-ip=23.128.96.37; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=X4MxN8UU; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 67153838B3FC; Fri, 6 Oct 2023 03:24:21 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231487AbjJFKYT (ORCPT + 99 others); Fri, 6 Oct 2023 06:24:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47414 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231230AbjJFKYS (ORCPT ); Fri, 6 Oct 2023 06:24:18 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6DBD8AD; Fri, 6 Oct 2023 03:24:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1696587856; x=1728123856; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=D0CG8r/O+j+/5iBn0jzImLh0rPun5dUaiLwzZqYYmMA=; b=X4MxN8UU99GU3Q9Nm/7UxB0IDTzMDrXxo1yOQbFwJklcld0xIkeGBPmE sGv99JBU1kERSYs3cA39z5BkwSjqXt3uF2X/q57bgqCj2h/4E3KyaQEeb 8mCSPVhNyjZzWHeteVcTto+99HrpAfa7hvXkvrV6AiCz6IgFgM0mnoryZ Ee2VKTYCofCpPj6L/hBjAauqqoHRrKqYz+8MF9qg8sEwusFMhlo8+qJP0 at5J+Fn3GFxP8qioRJ/MvD3bNs3VniQM4+/+y4Dx+iAg/zwKttkl3QQaG qJqG/RQGNB7lpp3BXXwTiWXdcYrj4cBmre6n6UKctNOclUNEoQwbzexHc w==; X-IronPort-AV: E=McAfee;i="6600,9927,10854"; a="447910956" X-IronPort-AV: E=Sophos;i="6.03,203,1694761200"; d="scan'208";a="447910956" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Oct 2023 03:24:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10854"; a="745829176" X-IronPort-AV: E=Sophos;i="6.03,203,1694761200"; d="scan'208";a="745829176" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga007.jf.intel.com with ESMTP; 06 Oct 2023 03:24:14 -0700 Received: by black.fi.intel.com (Postfix, from userid 1001) id CC52E4F4; Fri, 6 Oct 2023 13:24:12 +0300 (EEST) Date: Fri, 6 Oct 2023 13:24:12 +0300 From: Mika Westerberg To: Andy Shevchenko Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Andy Shevchenko , Linus Walleij , Raag Jadav Subject: Re: [PATCH v1 1/2] pinctrl: cherryview: Avoid duplicated I/O Message-ID: <20231006102412.GY3208943@black.fi.intel.com> References: <20231006094033.3082468-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20231006094033.3082468-1-andriy.shevchenko@linux.intel.com> X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Fri, 06 Oct 2023 03:24:21 -0700 (PDT) On Fri, Oct 06, 2023 at 12:40:32PM +0300, Andy Shevchenko wrote: > In some cases we already read the value from the register followed > by a reading of it again for other purposes, but the both reads > are under the lock and bits we are insterested in are not going > to change (they are not volatile from HW perspective). Hence, no > need to read the same registeer twice. Typo "registeer" -> "register" > Signed-off-by: Andy Shevchenko Acked-by: Mika Westerberg