From patchwork Sun Sep 3 22:40:59 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Stefan_Br=C3=BCns?= X-Patchwork-Id: 809461 Return-Path: X-Original-To: incoming-imx@patchwork.ozlabs.org Delivered-To: patchwork-incoming-imx@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.infradead.org (client-ip=65.50.211.133; helo=bombadil.infradead.org; envelope-from=linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="kEDK8Z2f"; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3xlp1y0Yxxz9s06 for ; Mon, 4 Sep 2017 08:44:22 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=4ulOJoq+8wKqSp0/MyTtXdHZFJwGGwNEwQHkpZqDv64=; b=kEDK8Z2fulR7Fw pIQf1sMusAFYuRfwXDNua95GGcYY66PlhLNU0Qn/jbaHSw1TL1wUm0yakq4nfMCxHF2lUmPMxo/xT eGO484rVXj3Vq5XN092enO5ImcKhTYbS+YgepemsGs/DWAnNW3NIwUMniGuujLR7onXMGym7Y1YcK AHcSaElfHO2ccaCKz9A2iq9ZiUyNpoLwZAYfpMs4eGSvalRcr7Or2iM2jtFuNS+mFqZlxE54xxfzL 5rId64Dn9Xqn+jGhDq3sGpghrS6ebSdMBq8uBcyMfvxiQ1r4vRsMeeoktmajJg4wHS3sofSU8jMrY yYWXsDvE/j07g0NYG/IQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dodco-0000yJ-4a; Sun, 03 Sep 2017 22:44:18 +0000 Received: from mail-out-1.itc.rwth-aachen.de ([134.130.5.46]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dodaI-0006vc-SU for linux-arm-kernel@lists.infradead.org; Sun, 03 Sep 2017 22:41:49 +0000 X-IronPort-AV: E=Sophos;i="5.41,472,1498514400"; d="scan'208";a="11604252" Received: from rwthex-w2-b.rwth-ad.de ([134.130.26.159]) by mail-in-1.itc.rwth-aachen.de with ESMTP; 04 Sep 2017 00:41:14 +0200 Received: from pebbles.fritz.box (92.225.242.208) by rwthex-w2-b.rwth-ad.de (2002:8682:1a9f::8682:1a9f) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Mon, 4 Sep 2017 00:41:13 +0200 From: =?utf-8?q?Stefan_Br=C3=BCns?= To: Subject: [PATCH 08/10] dmaengine: sun6i: Add support for Allwinner A64 and compatibles Date: Mon, 4 Sep 2017 00:40:59 +0200 Message-ID: <20170903224100.17893-9-stefan.bruens@rwth-aachen.de> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20170903224100.17893-1-stefan.bruens@rwth-aachen.de> References: <20170903224100.17893-1-stefan.bruens@rwth-aachen.de> MIME-Version: 1.0 X-Originating-IP: [92.225.242.208] X-ClientProxiedBy: rwthex-w1-b.rwth-ad.de (2002:8682:1a9d::8682:1a9d) To rwthex-w2-b.rwth-ad.de (2002:8682:1a9f::8682:1a9f) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170903_154143_285265_A602055B X-CRM114-Status: UNSURE ( 9.71 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -4.2 (----) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-4.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [134.130.5.46 listed in list.dnswl.org] -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Vinod Koul , Andre Przywara , linux-kernel@vger.kernel.org, Code Kipper , Chen-Yu Tsai , Rob Herring , dmaengine@vger.kernel.org, Maxime Ripard , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org List-Id: linux-imx-kernel.lists.patchwork.ozlabs.org The A64 SoC has the same dma engine as the H3 (sun8i), with a reduced amount of physical channels. To allow future reuse of the compatible, leave the channel count etc. in the config data blank and retrieve it from the devicetree. Signed-off-by: Stefan Brüns --- drivers/dma/sun6i-dma.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index bd4c2e4a759b..4fae7ffad549 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -1076,6 +1076,16 @@ static struct sun6i_dma_config sun8i_h3_dma_cfg = { .nr_max_vchans = 34, .dmac_variant = DMAC_VARIANT_H3, }; + +/* + * The A64 binding uses the number of dma channels from the + * device tree node. + */ +static struct sun6i_dma_config sun50i_a64_dma_cfg = { + .nr_max_channels = 0, + .nr_max_requests = 0, + .nr_max_vchans = 0, + .dmac_variant = DMAC_VARIANT_H3, }; static const struct of_device_id sun6i_dma_match[] = { @@ -1083,6 +1093,7 @@ static const struct of_device_id sun6i_dma_match[] = { { .compatible = "allwinner,sun8i-a23-dma", .data = &sun8i_a23_dma_cfg }, { .compatible = "allwinner,sun8i-a83t-dma", .data = &sun8i_a83t_dma_cfg }, { .compatible = "allwinner,sun8i-h3-dma", .data = &sun8i_h3_dma_cfg }, + { .compatible = "allwinner,sun50i-a64-dma", .data = &sun50i_a64_dma_cfg }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, sun6i_dma_match); @@ -1090,6 +1101,7 @@ MODULE_DEVICE_TABLE(of, sun6i_dma_match); static int sun6i_dma_probe(struct platform_device *pdev) { const struct of_device_id *device; + struct device_node *np = pdev->dev.of_node; struct sun6i_dma_dev *sdc; struct resource *res; int ret, i;