From patchwork Mon May 20 11:32:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baolin Wang X-Patchwork-Id: 1101944 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="QKc8XOBs"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 456xbG0G5Kz9s9N for ; Mon, 20 May 2019 21:32:58 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732945AbfETLc5 (ORCPT ); Mon, 20 May 2019 07:32:57 -0400 Received: from mail-pf1-f193.google.com ([209.85.210.193]:39452 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731168AbfETLc4 (ORCPT ); Mon, 20 May 2019 07:32:56 -0400 Received: by mail-pf1-f193.google.com with SMTP id z26so7092636pfg.6 for ; Mon, 20 May 2019 04:32:56 -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=QKc8XOBsWShq6QEmKaBcAza24sj5L89yQgva5BBJBD15azjrDgyggyl2Y6xH7l9m0+ qnbIVd8x46sGrGKbAFeOh9JcMuN8/8jHVUwKDDhLh5QIfnAQQVJcZo5GHolCqHVWUW1O HOOJE3BxF5szua4H8FJtxAzbduLES4VIQYRkDnjzWncNLnDgwlxQgwChnpNXpKFovDT6 4ZR45hFmVZ3QeHbNTfQ+mYMUwLMzZPT9tDEZSw9OLO4EKIVIp293+huklSqG+P9pT0sK JqjJIHo8V9bygr+sN87cZAnBBnSAcX+nCot+RqBM0luM5W3PidNFeReMZjG/yi3x4T1B DwzA== 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=VqIXF7X5W6easPGlIxQfobrAeW55BMQutmyIYBo+R8q8BKLWykH5YC1iMTK/Dc/x9x +Sy8FQgR59qHlMaiG5YFbu8WPBXuSzZyqYnXOohfh1LxJw/IzL+lV24E8J5JgtD72u95 opcbT6ZAeYffhBpmpNXTFc0epiQJ6AOnnxqOlhLYKDvpJBtn2gx5iga7RqRk5LVeOo2m EHmzlikKuTM/26DbpS0L4EzI6KeEeTNJxjskMwIAp2KBX3yGHxvhHSQaLb5G3QGP49QQ mq4AR7gLW0tSOfQUh51ITlUItr4OmGpxvONmPrHlaoKUzVJwigwobARtzDhaktYKkj1r IyXg== X-Gm-Message-State: APjAAAWH0Ku7hKpGfYR0fnH+1I+anEK/qxh7AmhFOIDyWrHL96GOiJCm OBDX3GWSwPUdmGZ6m1nn+ONNqA== X-Google-Smtp-Source: APXvYqxLeHaPHSHfiQmInEnHejopO5Ea8Zrwi3xZ14RXUo26VmHyfg5o1zIlWo3HHOh+5pmpHodGlw== X-Received: by 2002:a63:184:: with SMTP id 126mr48415643pgb.420.1558351976125; Mon, 20 May 2019 04:32:56 -0700 (PDT) Received: from baolinwangubtpc.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id z124sm21310020pfz.116.2019.05.20.04.32.51 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 20 May 2019 04:32:55 -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, 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 v2 5/8] dmaengine: mmp_tdma: Let the core do the device node validation Date: Mon, 20 May 2019 19:32:18 +0800 Message-Id: <5600ce71701aac33035d78bf038d97ca331bf18b.1558351667.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[] = {