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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,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 8421EC433DF for ; Mon, 15 Jun 2020 13:31:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 528D920739 for ; Mon, 15 Jun 2020 13:31:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592227914; bh=DNx2FOJBhMQcsxpwss5JX13KZQpzmknMo4MZDCRvaTQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=Jc9qJxhve/cNyLwuyxoGXRAKQ+D5sVo1gPBxlVSwsltYd7zYYyZDQwm8NrRrUq7cA DvWQcemIe0h/JtOkmGLIVxp8vuOTfsr49sEUM2BCCMl2uxuDtwGJa2MScVM1ixsAkv feKjGJuSHDdQIRRUFuTlaSdcOB1brKXhfoO8aqts= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730058AbgFONbx (ORCPT ); Mon, 15 Jun 2020 09:31:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:34286 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729875AbgFONbx (ORCPT ); Mon, 15 Jun 2020 09:31:53 -0400 Received: from localhost (fw-tnat.cambridge.arm.com [217.140.96.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A741E2071A; Mon, 15 Jun 2020 13:31:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592227913; bh=DNx2FOJBhMQcsxpwss5JX13KZQpzmknMo4MZDCRvaTQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=kWg1QPUT203sfVo4cN0dkBf3ax/CI8eZwCZTRDjv+wBMzPFsXVK/qN+vc/jXfeuxV soK+NrRQU6lXqwR+TMgW9IGnmXFT8GRM7tSbRgBZMHbWxq/LN2GPgL77E1OKGmLG2m kGqrWXANrPxWp+T2/JYhHIl9CgrcdSX/qqFFzzQ8= Date: Mon, 15 Jun 2020 14:31:50 +0100 From: Mark Brown To: Mark Tomlinson Cc: kdasu.kdev@gmail.com, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org Subject: Re: [PATCH 3/5] spi: bcm-qspi: Do not split transfers into small chunks Message-ID: <20200615133150.GT4447@sirena.org.uk> References: <20200615040557.2011-1-mark.tomlinson@alliedtelesis.co.nz> <20200615040557.2011-4-mark.tomlinson@alliedtelesis.co.nz> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="TJ9V72hR/LoebVea" Content-Disposition: inline In-Reply-To: <20200615040557.2011-4-mark.tomlinson@alliedtelesis.co.nz> X-Cookie: Offer may end without notice. User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org --TJ9V72hR/LoebVea Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Jun 15, 2020 at 04:05:55PM +1200, Mark Tomlinson wrote: > Instead of splitting transfers into smaller parts, just perform the > operation that the higher level asked for. I don't understand this change - presumably there was some reason for splitting the transfers into smaller chunks (issues keeping up with FIFOs or something)? How is whatever that reason is handled? --TJ9V72hR/LoebVea Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl7neEUACgkQJNaLcl1U h9DAPwf/f7MYucU1Yu2itPj+OWXklfxkXLzGLvoujwfjGfJolzFqbslCSlcHKkUH vNVdnlwNWIEufuxlgQevTuaE20sZKDKhS2eS9aaieODpt0bknbj/La/q3otQiNW7 5MdSPhOO0N+Gq2W3zX1e+biaTuS4KOEVDla6QOfrJ0VuUgKOxDP9Jdp96oOKypt5 rA5RamnnjaUM4i2i2VUBqOzIBWQdASrSaTOMA1o640swXH+1gqAlcjJrV40Ijczr 5C3s4txzOWJ7kCsdy9knZWkW/KEnMY3lj/c73A8LhkDzdtiozC2QScWoHIz0vvxT yoNf/pBUq9d3jRcpqbP6KTf+NzijWA== =ikNT -----END PGP SIGNATURE----- --TJ9V72hR/LoebVea--