From patchwork Tue Oct 28 21:25:53 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 5180241 Return-Path: X-Original-To: patchwork-dmaengine@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 048BF9F387 for ; Tue, 28 Oct 2014 21:32:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2307420155 for ; Tue, 28 Oct 2014 21:32:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 39BF8200ED for ; Tue, 28 Oct 2014 21:32:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755380AbaJ1Vcj (ORCPT ); Tue, 28 Oct 2014 17:32:39 -0400 Received: from down.free-electrons.com ([37.187.137.238]:37133 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755266AbaJ1VbJ (ORCPT ); Tue, 28 Oct 2014 17:31:09 -0400 Received: by mail.free-electrons.com (Postfix, from userid 106) id 915E4481F; Tue, 28 Oct 2014 22:31:09 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from localhost (per18-1-82-246-202-189.fbx.proxad.net [82.246.202.189]) by mail.free-electrons.com (Postfix) with ESMTPSA id 33C1C472F; Tue, 28 Oct 2014 22:31:09 +0100 (CET) From: Maxime Ripard To: Vinod Koul , dmaengine@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Laurent Pinchart , =?UTF-8?q?Antoine=20T=C3=A9nart?= , Russell King , lars@metafoo.de, Maxime Ripard Subject: [PATCH v4 38/58] dmaengine: sh: Split device_control Date: Tue, 28 Oct 2014 22:25:53 +0100 Message-Id: <1414531573-18807-39-git-send-email-maxime.ripard@free-electrons.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1414531573-18807-1-git-send-email-maxime.ripard@free-electrons.com> References: <1414531573-18807-1-git-send-email-maxime.ripard@free-electrons.com> Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Split the device_control callback of the Super-H DMA driver to make use of the newly introduced callbacks, that will eventually be used to retrieve slave capabilities. Signed-off-by: Maxime Ripard Acked-by: Laurent Pinchart --- drivers/dma/sh/shdma-base.c | 72 +++++++++++++++++++++------------------------ 1 file changed, 33 insertions(+), 39 deletions(-) diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c index 42d497416196..706cb2611e4d 100644 --- a/drivers/dma/sh/shdma-base.c +++ b/drivers/dma/sh/shdma-base.c @@ -727,57 +727,50 @@ static struct dma_async_tx_descriptor *shdma_prep_dma_cyclic( return desc; } -static int shdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, - unsigned long arg) +static int shdma_terminate_all(struct dma_chan *chan) { struct shdma_chan *schan = to_shdma_chan(chan); struct shdma_dev *sdev = to_shdma_dev(chan->device); const struct shdma_ops *ops = sdev->ops; - struct dma_slave_config *config; unsigned long flags; - int ret; - switch (cmd) { - case DMA_TERMINATE_ALL: - spin_lock_irqsave(&schan->chan_lock, flags); - ops->halt_channel(schan); + spin_lock_irqsave(&schan->chan_lock, flags); + ops->halt_channel(schan); - if (ops->get_partial && !list_empty(&schan->ld_queue)) { - /* Record partial transfer */ - struct shdma_desc *desc = list_first_entry(&schan->ld_queue, - struct shdma_desc, node); - desc->partial = ops->get_partial(schan, desc); - } + if (ops->get_partial && !list_empty(&schan->ld_queue)) { + /* Record partial transfer */ + struct shdma_desc *desc = list_first_entry(&schan->ld_queue, + struct shdma_desc, node); + desc->partial = ops->get_partial(schan, desc); + } - spin_unlock_irqrestore(&schan->chan_lock, flags); + spin_unlock_irqrestore(&schan->chan_lock, flags); - shdma_chan_ld_cleanup(schan, true); - break; - case DMA_SLAVE_CONFIG: - /* - * So far only .slave_id is used, but the slave drivers are - * encouraged to also set a transfer direction and an address. - */ - if (!arg) - return -EINVAL; - /* - * We could lock this, but you shouldn't be configuring the - * channel, while using it... - */ - config = (struct dma_slave_config *)arg; - ret = shdma_setup_slave(schan, config->slave_id, - config->direction == DMA_DEV_TO_MEM ? - config->src_addr : config->dst_addr); - if (ret < 0) - return ret; - break; - default: - return -ENXIO; - } + shdma_chan_ld_cleanup(schan, true); return 0; } +static int shdma_config(struct dma_chan *chan, + struct dma_slave_config *config) +{ + struct shdma_chan *schan = to_shdma_chan(chan); + + /* + * So far only .slave_id is used, but the slave drivers are + * encouraged to also set a transfer direction and an address. + */ + if (!config) + return -EINVAL; + /* + * We could lock this, but you shouldn't be configuring the + * channel, while using it... + */ + return shdma_setup_slave(schan, config->slave_id, + config->direction == DMA_DEV_TO_MEM ? + config->src_addr : config->dst_addr); +} + static void shdma_issue_pending(struct dma_chan *chan) { struct shdma_chan *schan = to_shdma_chan(chan); @@ -1000,7 +993,8 @@ int shdma_init(struct device *dev, struct shdma_dev *sdev, /* Compulsory for DMA_SLAVE fields */ dma_dev->device_prep_slave_sg = shdma_prep_slave_sg; dma_dev->device_prep_dma_cyclic = shdma_prep_dma_cyclic; - dma_dev->device_control = shdma_control; + dma_dev->device_config = shdma_config; + dma_dev->device_terminate_all = shdma_terminate_all; dma_dev->dev = dev;