Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754200AbaJHSVi (ORCPT ); Wed, 8 Oct 2014 14:21:38 -0400 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:41093 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752730AbaJHSVh (ORCPT ); Wed, 8 Oct 2014 14:21:37 -0400 Date: Wed, 8 Oct 2014 19:21:23 +0100 From: Mark Brown To: Ray Jui Cc: Grant Likely , linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, JD Zheng , Scott Branden Message-ID: <20141008182123.GH4609@sirena.org.uk> References: <1412743127-4523-1-git-send-email-rjui@broadcom.com> <20141008112143.GT4609@sirena.org.uk> <543562EB.8060300@broadcom.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="SOtBRHVUTiB0e0Vw" Content-Disposition: inline In-Reply-To: <543562EB.8060300@broadcom.com> X-Cookie: Everything you know is wrong! User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: 94.175.94.161 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Re: [PATCH] spi: pl022: Fix broken spidev when DMA is enabled 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 --SOtBRHVUTiB0e0Vw Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Oct 08, 2014 at 09:14:35AM -0700, Ray Jui wrote: > Thanks for the reply. It looks like you are also the maintainer of spidev. > In this case, could you please help to confirm that you expect spidev to use > separate buffers for TX and RX? If so, I can go ahead and make the change in > spidev. Yes, that would be my expectation for maximum robustness (or if it is going to use one buffer it explicitly maps it for mixed use but I'd expect that to be asking for trouble). --SOtBRHVUTiB0e0Vw Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBAgAGBQJUNYCiAAoJECTWi3JdVIfQB0EH/j/kNQG1QgTj6zKBsCfVYKBy Zlyampo/pqtrRqo3+PSiEv4Kq6vV+VazJUgypVacC5LLFeiWTl1qQ4G6n8x345oT SklY3cjCZkduKMsBOrPIzcUnP0CZYqVps/fl4nIf3rXjloed8Ch3V4+7ewDFyFH7 Q28NkW3bH3wvl83oGdKD4peh3M2N62lFKyNexebXYLv8vTDJb1U+WiMZvDkORA7W FstTWQaWzOSM554SKE++BqJ+IWPKTZ8MYw8RHW7GdvSiy9gsnECS2z/YAfhXypIF LE7/UY3peQlD432gCiJa9gyv+cDaL/HJLOURuimE25JPa1Ea2ZDuYvp0xFx2Awk= =JBXg -----END PGP SIGNATURE----- --SOtBRHVUTiB0e0Vw-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/