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=-2.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 99DFCC49ED7 for ; Fri, 20 Sep 2019 11:02:22 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 694FD20882 for ; Fri, 20 Sep 2019 11:02:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="UNlyUOJY"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sirena.org.uk header.i=@sirena.org.uk header.b="tFnaNCfF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 694FD20882 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=2TGW+dF3/57/gRNGdirDDZ+w864imRutgjvJJMF3WSA=; b=UNlyUOJYLZd0Hj2id4r3ur9GC 9xmuFwrGoKLKRII5iKduJE7RgziJ23pUzFdOHCibzq3D1cMBA/Zy/WRDAd3wB2kBJHTpVNaYQPm7x LBYGLo1DlEQSrb+HS56XvyNS/XoZ6cuwnsBq6oTavRRDdHcWi5zHVrKsgy1xepKYgXq4ph/xOkjxs E3X2a5ZF4t20TH1r5aDWs2/he+um1VqtKnW3RZ4rNko9ReXOHbZNzON/I4Bbt+N2Xn9uYl2dE1i8N H33gPvWl+Y2gAYnS95yqvKq4dz4n8v6GdF0OM0eeTMSZESBLg6hNWc9sQ3/jQUv8FlMLCrhoG3YpB TuFns5B8A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iBGg3-0000Ve-H1; Fri, 20 Sep 2019 11:02:15 +0000 Received: from heliosphere.sirena.org.uk ([172.104.155.198]) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iBGg0-0000VE-0R for linux-arm-kernel@lists.infradead.org; Fri, 20 Sep 2019 11:02:13 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sirena.org.uk; s=20170815-heliosphere; h=In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=TvSJPXCNUj0sKtwLV+ZZRK3DKaY/Th/BDTAKK7SPRmI=; b=tFnaNCfFVD5quhenDzNWlPLBG H1xR7Ud+5LuOoeOUM1tufkeG1zX+z7B13lZOVDrq0n/h50BtlvgUZbCNfLo71wEfUnHvJylKDJnKH JVPaH2d6OIxUuxi3/Y8tZob3xE5cXJnuxTmfZ2uYN9+5Thph8DtRipWc/HVyLQ27OCZPc=; Received: from cpc102320-sgyl38-2-0-cust46.18-2.cable.virginm.net ([82.37.168.47] helo=ypsilon.sirena.org.uk) by heliosphere.sirena.org.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1iBGfv-0001bE-Nx; Fri, 20 Sep 2019 11:02:07 +0000 Received: by ypsilon.sirena.org.uk (Postfix, from userid 1000) id D53BD274293C; Fri, 20 Sep 2019 12:02:06 +0100 (BST) Date: Fri, 20 Sep 2019 12:02:06 +0100 From: Mark Brown To: Miquel Raynal Subject: Re: [PATCH 1/4] spi: mxic: Fix transmit path Message-ID: <20190920110206.GC3822@sirena.co.uk> References: <20190919202504.9619-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 In-Reply-To: <20190919202504.9619-1-miquel.raynal@bootlin.com> X-Cookie: Stay away from hurricanes for a while. User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190920_040212_057517_D68F3776 X-CRM114-Status: UNSURE ( 8.01 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Julien Su , stable@vger.kernel.org, linux-spi@vger.kernel.org, Boris Brezillon , Thomas Petazzoni , Mason Yang , linux-arm-kernel@lists.infradead.org Content-Type: multipart/mixed; boundary="===============8744415775278694002==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============8744415775278694002== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="TYecfFk8j8mZq+dy" Content-Disposition: inline --TYecfFk8j8mZq+dy Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Sep 19, 2019 at 10:25:01PM +0200, Miquel Raynal wrote: > In certain circumstances, it is needed to check INT_TX_EMPTY and > INT_RX_NOT_EMPTY in the transmit path, not only in the receive > path. In both cases, the delay penalty is negligible. In which circumstances and why is this required? --TYecfFk8j8mZq+dy Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl2Esa0ACgkQJNaLcl1U h9AgbAf/WGzhQIKCPqtpT234KXwcBHp9ZJZEvag3OQYnGwCZ2HTkbFi2GxY82UT4 FnSIj9o6IaTk1y4lFcXSoVfYJFm6ik+CksaPPCOKp/yX6Wdh+zcszod8nYGb9MDH 8JodKY8SteqX+PB9bxuZzip9vNkX6VaS+4ZA7Z/y+645Jmjo8FS1Yk83J/H87FJg FroH17yf9TsGUgggStqTfz10e7sT17uPFpF6e3s/rGU3GVYqaYgtQS65vM2ARXbR 1OLvYa+4ogLGFE/JfxVFbyHDUQa7dQKZ/3fxlEXN4huhVJ9vRR0kPztathlfdX46 3TqFUQ7tJLD/tzeEt7hfU6OMdItB0A== =717f -----END PGP SIGNATURE----- --TYecfFk8j8mZq+dy-- --===============8744415775278694002== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============8744415775278694002==--