From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH v2] spi: s3c64xx: move to generic dmaengine API Date: Wed, 17 Apr 2013 15:46:37 +0100 Message-ID: <20130417144637.GW13687@opensource.wolfsonmicro.com> References: <1365638712-1028578-1-git-send-email-arnd@arndb.de> <1365638712-1028578-30-git-send-email-arnd@arndb.de> <20130411165536.GO9243@opensource.wolfsonmicro.com> <201304112242.03252.arnd@arndb.de> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="c7rykKtsZvepKFKR" Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Kukjin Kim , linux-samsung-soc@vger.kernel.org, spi-devel-general@lists.sourceforge.net, Grant Likely , Padma Venkat To: Arnd Bergmann Return-path: Content-Disposition: inline In-Reply-To: <201304112242.03252.arnd@arndb.de> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-spi.vger.kernel.org --c7rykKtsZvepKFKR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Apr 11, 2013 at 10:42:03PM +0200, Arnd Bergmann wrote: > The spi-s3c64xx uses a Samsung proprietary interface for > talking to the DMA engine, which does not work with > multiplatform kernels. Actually it seems that this patch is causing issues for bulk SPI transfers on s3c64xx, especially when they're driven quickly one after another. I've only just found the problem so I've not been able to debug yet but a revert fixes it... --c7rykKtsZvepKFKR Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJRbrXEAAoJELSic+t+oim99AAP/RdAeszwwW1PpsUnQSv2oCKj xFmUUIhOsZLWes0/FutEIZiriu5OOXpjsUnF8efnOw82uz4W68IHlyKDwKmjTluN Af2azRFigkd7L4BLJpBl5M9Q1uBJ4oXAw3Z/FtSPGDT7a5hkH0+DU4MYLCV2vRp0 dKI8AD0B2jQL0HrEShnFpYw2NulgzMemrWcK8hDZU4Ya4AdRxue2bBfoO4+utkBJ vZndujoun+YHymAYbO2+oZx0SeCkRZWzd9V05QWhqkGpMFIZIWhviFOrip0ajYFy B+47dJWHPqxifui0Ni0Q64j7XUxjzfpQvdsypX1Wl5PQYQW/DFqqOSwbQHFhOY1v 4849GsKs1yzy10VHQ6sKJiTwq8148+KPrTL9EIZtL5s65pqM5uH4TF27R1eOsS+a w2UvIWE5rjWnCVGUm3HiTF4pbhnXq3s1C7CZBZeaFv9+cTf9bQ8BXzaJCScyDoMe yYSIjxq5N6hURl9WyOMtY5YejO7ERIvHpxZc1JkY1PnLUXyc9+vkUBNU3KTVDL2j Q3OM7q4gMARrqj+k5weK15E2eq1AFKarpLK8mWFj8frOLW6ZysMQOufNSqOoibZV /yfcT0s2+NiGSXCN13nt2QOyUIkZn6/JZsRtE6lUzUJDyLbB5O1zohd2xd//WtFz pjNsLG2usYvdWS+ps9iM =roxK -----END PGP SIGNATURE----- --c7rykKtsZvepKFKR--