From patchwork Tue May 7 06:09:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baolin Wang X-Patchwork-Id: 1096154 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="uzv8EVMR"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44yq3M2jksz9sBr for ; Tue, 7 May 2019 16:10:39 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726527AbfEGGKe (ORCPT ); Tue, 7 May 2019 02:10:34 -0400 Received: from mail-pf1-f194.google.com ([209.85.210.194]:45793 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726488AbfEGGKe (ORCPT ); Tue, 7 May 2019 02:10:34 -0400 Received: by mail-pf1-f194.google.com with SMTP id e24so8061123pfi.12 for ; Mon, 06 May 2019 23:10:33 -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=SIcVyU2wUJ5jnbmBXFPsqnRHsqNC2CkR/vX822PSMOY=; b=uzv8EVMR3eIzQHGMxtSinQ33vYdmES17QK9vAF+is0gNJPHupQ6KVAf610h40rDqTl mKBgUTk+Ut4Bj4VyJSGfixnwuP75KxLZ3rR/dD2erhsgubg4C/SDOyF3lwNeXv/ZK/Uz vqb4YQm36emaqBt81ttPnG4INyLLePjLgEmt1v999Hrge64h4BYHk6qG/Mm0fiZHHeZ6 +SOakh5BXaVbgLcpXRF457kFitWiq+XbN65xMG0L42NrHyiIk6ZXZ65Ekx2ps3k33kBs wFL151kgbUjIgQ1PyFgu6oGhvnecnO7t3n2+7Rq3rM0GwUhfQR9XNOT1c9vmI362POjI D3/g== 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=SIcVyU2wUJ5jnbmBXFPsqnRHsqNC2CkR/vX822PSMOY=; b=Escai6DUNVfLBqqvuncoWyMZuipyzcUpYr9jfBnBfgExQU60T2dntFEnzXnaWffPjt fBE7h8W1ZkL/4nCwnV1c9j1fzOffBrboCPwKQEJSLlw3/tgaCHFanz+HP54qoRX2mJXX jHQkZtLQdRQqiYeB5VKxM0q4t+zXizqQuTheLypaaiT8ROiXjB2LMAvHa/tbpBur1DG3 dF1EiC/m1m4bCWbEeEFsPdbVWMfawRjJ4KmXO9IVCxcTBpuyZT4QshauWx4A0dnvEMjX Dzl8lSv3JzzLfNN3BlEswVpCYs41FTi95/Rv+Zg4zk/DXsR4x4h4G2KXIhQIVYcTbIgy camw== X-Gm-Message-State: APjAAAUtbANRh5aI0L6HrqPwYuAQZcMXHKbCfueFsqPfR4t+fGAehEsr BuuBo5MYO2xKxlQoOhyCHpKAPg== X-Google-Smtp-Source: APXvYqxJz/xZPJSmy2/wQh18OVGnuvH8hrc1Fkm+22VpZKanUEMOAKKkcCUjI1avaibd+/UwNwKGfw== X-Received: by 2002:aa7:98c6:: with SMTP id e6mr226683pfm.191.1557209433209; Mon, 06 May 2019 23:10:33 -0700 (PDT) Received: from baolinwangubtpc.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id e184sm30786325pfc.102.2019.05.06.23.10.28 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 06 May 2019 23:10:32 -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 5/8] dmaengine: mmp_tdma: Let the core do the device node validation Date: Tue, 7 May 2019 14:09:42 +0800 Message-Id: <1c420603d220b1ab28f7d98165bb37feaf706f61.1557206859.git.baolin.wang@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: In-Reply-To: References: Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Let the DMA engine core do the device node validation instead of drivers. Signed-off-by: Baolin Wang --- drivers/dma/mmp_tdma.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c index 0c56faa0..e76858b 100644 --- a/drivers/dma/mmp_tdma.c +++ b/drivers/dma/mmp_tdma.c @@ -586,18 +586,12 @@ static int mmp_tdma_chan_init(struct mmp_tdma_device *tdev, } struct mmp_tdma_filter_param { - struct device_node *of_node; unsigned int chan_id; }; static bool mmp_tdma_filter_fn(struct dma_chan *chan, void *fn_param) { struct mmp_tdma_filter_param *param = fn_param; - struct mmp_tdma_chan *tdmac = to_mmp_tdma_chan(chan); - struct dma_device *pdma_device = tdmac->chan.device; - - if (pdma_device->dev->of_node != param->of_node) - return false; if (chan->chan_id != param->chan_id) return false; @@ -615,13 +609,13 @@ static struct dma_chan *mmp_tdma_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 >= TDMA_CHANNEL_NUM) return NULL; - return dma_request_channel(mask, mmp_tdma_filter_fn, ¶m); + return __dma_request_channel(&mask, mmp_tdma_filter_fn, ¶m, + ofdma->of_node); } static const struct of_device_id mmp_tdma_dt_ids[] = {