From patchwork Tue May 7 06:09:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "(Exiting) Baolin Wang" X-Patchwork-Id: 10932311 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3E66E912 for ; Tue, 7 May 2019 06:10:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2C2BA28910 for ; Tue, 7 May 2019 06:10:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1F22C28918; Tue, 7 May 2019 06:10:40 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BFAB528910 for ; Tue, 7 May 2019 06:10:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726400AbfEGGKj (ORCPT ); Tue, 7 May 2019 02:10:39 -0400 Received: from mail-pf1-f193.google.com ([209.85.210.193]:36810 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726486AbfEGGKi (ORCPT ); Tue, 7 May 2019 02:10:38 -0400 Received: by mail-pf1-f193.google.com with SMTP id v80so8081709pfa.3 for ; Mon, 06 May 2019 23:10:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :in-reply-to:references; bh=MjWLMAdBW11KI57uPKHpmOc8QO2EQsc2Bw5TFtq2aeM=; b=EPTCkX6PIWp6H6mHi0TmZyBHNTkNiDCOjwIvq4y+k7bAcUKgg+aAQYSeUiGtcEFhac uMQAb8Ce8bUqBZz0qzb3QD+1St8FT3LKJBOg2WJ79dLdgMiEnyhT6dED9GpA50HiDYXN g0cKvEmfcBjAZftLALFM6YJyyLCO2jGotOdpdiT+Jjqk4ZyUCejl/+4S7hjOJBIeAEgH EAM3+6a/PJghpLImXKKWgX2TNnpm0v9a0iYFb5ZHU9heUH6Nziw1o22ZNlXNQi/VzWyP yMjMvo3QcgAZii1n18z4Ol2nN+x5pdXG7MSREtWPwYDbLaQVwGa4WWigS7aVj5XMz8ac hXmQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:in-reply-to:references; bh=MjWLMAdBW11KI57uPKHpmOc8QO2EQsc2Bw5TFtq2aeM=; b=odSiZxdGj1Uq3o/g83PfqFdHzAqxud8Ki0MeiJQgrntjMeKdI5gHjulY8t98Q1No9X Cy1+kSVNvZGzMJ4VJ3CMGCVaMwvY5WlIEYAx+Yr2z1gl0wMtV6zWghtOElK//pnkSnHK gk0TxsvJHaP1rc7XkgmVj1muaTV1AAgriPIQPXeSpOB+F0U71g9edH31tdIFzoLJPi6R 95O2OqbDddpYmDeuy3WGVmqrlqvl6C9EPHNwJhlJTcACqvODsAc+woOjeTws0X5ZSih0 Emp0czltyLs7DQ4cI/VRYbwQpjiE6LJ+XDivNlpaT7K9V5UhkpnKs/bsq7YjTYVkNyqo /xaQ== X-Gm-Message-State: APjAAAV3xbL5vFa8i1EP+w0W4MPkbUgHSoTmWQhX8tnEH8t6jfC/9xUb fbNE/Jve2S6rPgq3IyzFVGLK5w== X-Google-Smtp-Source: APXvYqxLVILAxDHZN2kRQScJnvark6ssZgdEGaBWmo/QMwC9MFS0hSHYzRT49kNXNOF1nEGRxtcIsw== X-Received: by 2002:aa7:90ca:: with SMTP id k10mr1280408pfk.20.1557209438341; Mon, 06 May 2019 23:10:38 -0700 (PDT) Received: from baolinwangubtpc.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id e184sm30786325pfc.102.2019.05.06.23.10.33 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 06 May 2019 23:10:37 -0700 (PDT) From: Baolin Wang To: dan.j.williams@intel.com, vkoul@kernel.org Cc: thierry.reding@gmail.com, jonathanh@nvidia.com, linux-tegra@vger.kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, Zubair.Kakakhel@imgtec.com, wsa+renesas@sang-engineering.com, jroedel@suse.de, vincent.guittot@linaro.org, baolin.wang@linaro.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 6/8] dmaengine: mxs-dma: Let the core do the device node validation Date: Tue, 7 May 2019 14:09:43 +0800 Message-Id: X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: In-Reply-To: References: Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Let the DMA engine core do the device node validation instead of drivers. Signed-off-by: Baolin Wang --- drivers/dma/mxs-dma.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c index 22cc7f6..8ce5e79 100644 --- a/drivers/dma/mxs-dma.c +++ b/drivers/dma/mxs-dma.c @@ -716,7 +716,6 @@ static int __init mxs_dma_init(struct mxs_dma_engine *mxs_dma) } struct mxs_dma_filter_param { - struct device_node *of_node; unsigned int chan_id; }; @@ -727,9 +726,6 @@ static bool mxs_dma_filter_fn(struct dma_chan *chan, void *fn_param) struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma; int chan_irq; - if (mxs_dma->dma_device.dev->of_node != param->of_node) - return false; - if (chan->chan_id != param->chan_id) return false; @@ -752,13 +748,13 @@ static struct dma_chan *mxs_dma_xlate(struct of_phandle_args *dma_spec, if (dma_spec->args_count != 1) return NULL; - param.of_node = ofdma->of_node; param.chan_id = dma_spec->args[0]; if (param.chan_id >= mxs_dma->nr_channels) return NULL; - return dma_request_channel(mask, mxs_dma_filter_fn, ¶m); + return __dma_request_channel(&mask, mxs_dma_filter_fn, ¶m, + ofdma->of_node); } static int __init mxs_dma_probe(struct platform_device *pdev)