Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758336Ab2HWD5v (ORCPT ); Wed, 22 Aug 2012 23:57:51 -0400 Received: from mga11.intel.com ([192.55.52.93]:57674 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758281Ab2HWD5s (ORCPT ); Wed, 22 Aug 2012 23:57:48 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.80,298,1344236400"; d="scan'208";a="212720314" Subject: Re: [PATCH v2 3/3] spi: spi-davinci: convert to DMA engine API From: Vinod Koul To: Matt Porter Cc: cjb@laptop.org, grant.likely@secretlab.ca, Linux DaVinci Kernel List , Sekhar Nori , Linux MMC List , Linux Kernel Mailing List , Linux SPI Devel List , Linux ARM Kernel List In-Reply-To: <20120822160417.GA27758@beef> References: <1345574589-24757-1-git-send-email-mporter@ti.com> <1345574589-24757-4-git-send-email-mporter@ti.com> <1345607122.1895.44.camel@vkoul-udesk3> <20120822160417.GA27758@beef> Content-Type: text/plain; charset="UTF-8" Date: Thu, 23 Aug 2012 09:29:40 +0530 Message-ID: <1345694380.1895.87.camel@vkoul-udesk3> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 693 Lines: 17 On Wed, 2012-08-22 at 12:04 -0400, Matt Porter wrote: > for querying of these types of limitations. Right now, the > mmc driver implicitly knows that EDMA needs this restriction > but it's something that should be queried before calling > prep_slave(). that's something we need to add; exporting channel capabilities. We only tell that it slave or memcpy today, but we need to tell clients what are channel supported parameter ranges. -- ~Vinod -- 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/