From patchwork Mon Jun 2 13:38:18 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 4281971 Return-Path: X-Original-To: patchwork-linux-spi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 452FABEEA7 for ; Mon, 2 Jun 2014 13:39:01 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 824FF203E5 for ; Mon, 2 Jun 2014 13:39:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A48B02018E for ; Mon, 2 Jun 2014 13:38:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754712AbaFBNil (ORCPT ); Mon, 2 Jun 2014 09:38:41 -0400 Received: from wilson.telenet-ops.be ([195.130.132.42]:44480 "EHLO wilson.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754813AbaFBNih (ORCPT ); Mon, 2 Jun 2014 09:38:37 -0400 Received: from michel.telenet-ops.be (michel.telenet-ops.be [195.130.137.88]) by wilson.telenet-ops.be (Postfix) with ESMTP id 6B86A353C1 for ; Mon, 2 Jun 2014 15:38:32 +0200 (CEST) Received: from ayla.of.borg ([84.193.72.141]) by michel.telenet-ops.be with bizsmtp id 9ReY1o00Q32ts5g06ReYgC; Mon, 02 Jun 2014 15:38:32 +0200 Received: from geert by ayla.of.borg with local (Exim 4.76) (envelope-from ) id 1WrSRc-0007jB-2X; Mon, 02 Jun 2014 15:38:32 +0200 From: Geert Uytterhoeven To: Mark Brown Cc: Yoshihiro Shimoda , Magnus Damm , linux-spi@vger.kernel.org, linux-sh@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH 16/18] spi: rspi: Add DMA support for RSPI on RZ/A1H Date: Mon, 2 Jun 2014 15:38:18 +0200 Message-Id: <1401716301-29612-17-git-send-email-geert+renesas@glider.be> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1401716301-29612-1-git-send-email-geert+renesas@glider.be> References: <1401716301-29612-1-git-send-email-geert+renesas@glider.be> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Enable DMA support for RSPI on r7s72100 (RZ/A1H). Signed-off-by: Geert Uytterhoeven --- This is untested, due to lack of DMA integration code on r7s72100/genmai. --- drivers/spi/spi-rspi.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index bec81470dd9c..4bc4138e002b 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -625,6 +625,9 @@ static int rspi_rz_transfer_one(struct spi_master *master, rspi_rz_receive_init(rspi); + if (master->can_dma && __rspi_can_dma(rspi, xfer)) + return rspi_dma_transfer(rspi, &xfer->tx_sg, &xfer->rx_sg); + ret = rspi_pio_transfer(rspi, xfer->tx_buf, xfer->rx_buf, xfer->len); if (ret < 0) return ret;