From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755624AbaLVRyh (ORCPT ); Mon, 22 Dec 2014 12:54:37 -0500 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:44215 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755223AbaLVRyg (ORCPT ); Mon, 22 Dec 2014 12:54:36 -0500 Date: Mon, 22 Dec 2014 17:54:23 +0000 From: Mark Brown To: Andrew Bresticker Cc: Sifan Naeem , linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org Message-ID: <20141222175423.GE17800@sirena.org.uk> References: <1418763946-22260-1-git-send-email-abrestic@chromium.org> <1418763946-22260-3-git-send-email-abrestic@chromium.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="WeoCK3UN7lwjrlbw" Content-Disposition: inline In-Reply-To: <1418763946-22260-3-git-send-email-abrestic@chromium.org> X-Cookie: You have no real enemies. User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: 31.51.36.65 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Re: [PATCH 3/3] spi: img-spfi: Increase DMA burst size X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on mezzanine.sirena.org.uk) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --WeoCK3UN7lwjrlbw Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Dec 16, 2014 at 01:05:46PM -0800, Andrew Bresticker wrote: > A 1-byte burst size is rather inefficient and has been shown to cause > TX issues during testing. Increase the DMA burst size to 4-bytes for > both RX and TX DMA when using the 8-bit FIFO. This sounds like a fix for transmit issues so should go before patch 2 (which seems like it is a performance improvement rather than a bug fix) but it depends on that patch - can you respin in the opposite order please? --WeoCK3UN7lwjrlbw Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBAgAGBQJUmFrOAAoJECTWi3JdVIfQffMH/3kVEvTPoUPb2IwVV+KJFduj 9KkucTRLNV2/3hoEcgIYlXZ+iZO479ytbxDFILIieEnGsSa4Gom4FMhy/Wg+77/F 0EGR7hQag7Lx5qwzy2PjOyqaagjlzmhJdu/b3C5CwmSzv2SPh7jnuLHWvYc+LDNz PujQrhJy2IZJtmpDnOGGJ/oaALW+p4BvM4qukWGaLKlVRKiiTl8PUpOvE8WE/jFd a1QcKXKWpwT7YqaGf7ZAQN0BqqQrmFOl2tJyvIbg18uuqwDD06kVXXPihQWI30MD wwUUqKVLglGJPgqgdgXp09F9ifvIuIzPfu1G/oogl0nRQrBNsnXmAdNtjekU/tQ= =B5fd -----END PGP SIGNATURE----- --WeoCK3UN7lwjrlbw--