From patchwork Wed Dec 23 09:30:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: EastL Lee X-Patchwork-Id: 11987985 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4B03C433DB for ; Wed, 23 Dec 2020 09:37:14 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5452820855 for ; Wed, 23 Dec 2020 09:37:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5452820855 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.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=0Fz/5VlojpRKPdWysoWKIXr8tHYpRTZ38i0h2dpZN5o=; b=a5tYV5MiFYwQ1pQY+40FzNcYp 31ZVJXF67c5IPQ4bQh4DK+Tv40mQ81UYuUKkcH1wE1wAJ1pPUMauZhwJlvT1d13SRQYt3G/yeHvBU W4VmZOxF+1mnqT2OFPdMRPkhDbvq/B4RgzKJTxh38T0LEBQMfgbTOl2/BreTP2C8I0wcY/K1uU6g3 TQpK/j1/09F64HMjCnRYdaTByYNtP5jsrb2HpbMICexUsNdNZBYXU/m6CDU7+I/PVZzb8JY6rtyYJ QxRMr2pbohGXhLvEIOb7uM+v2ekhOSGWjj7AbKwTVebc3Bs70aiaIalIsmYcC+VFJHjyg5HIdNmcA sM+flvp4g==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ks0Zq-00076g-Nt; Wed, 23 Dec 2020 09:37:02 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ks0Zn-00075G-BU; Wed, 23 Dec 2020 09:37:00 +0000 X-UUID: 860c528896214ca7b7f98a6ff55bc669-20201223 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=ahbWRcPcWQCgNbqrlq91xsX5/hkLrfZyOxN384yVm+I=; b=T70vTQ/EjaJOAEZC0qahv5IiJktedFnD/dBUlMSfICpoYdPzYdMCnK8b06A2fXUxQgZoJbHCCHgZiRuPlhagVPIAW406PVMXWv/J5QVQPcom0Yw146wCQQv6/S1+tA/UXaU4OlnJVN9ylKVwSTXD9rEXWy7jJk5MJKHvwEngrHw=; X-UUID: 860c528896214ca7b7f98a6ff55bc669-20201223 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 687040666; Wed, 23 Dec 2020 01:36:55 -0800 Received: from MTKMBS02N1.mediatek.inc (172.21.101.77) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 23 Dec 2020 01:31:12 -0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 23 Dec 2020 17:31:05 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 23 Dec 2020 17:31:05 +0800 From: EastL Lee To: Sean Wang Subject: [PATCH v8 3/4] dmaengine: mediatek-cqdma: add dma mask for capability Date: Wed, 23 Dec 2020 17:30:46 +0800 Message-ID: <1608715847-28956-4-git-send-email-EastL.Lee@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1608715847-28956-1-git-send-email-EastL.Lee@mediatek.com> References: <1608715847-28956-1-git-send-email-EastL.Lee@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201223_043659_600031_28CF2FB7 X-CRM114-Status: GOOD ( 12.95 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, cc.hwang@mediatek.com, wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org, EastL Lee , dmaengine@vger.kernel.org, vkoul@kernel.org, robh+dt@kernel.org, linux-mediatek@lists.infradead.org, matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org This patch add dma mask for capability. Signed-off-by: EastL Lee Reviewed-by: Matthias Brugger --- drivers/dma/mediatek/mtk-cqdma.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/dma/mediatek/mtk-cqdma.c b/drivers/dma/mediatek/mtk-cqdma.c index 905bbcb..1610632 100644 --- a/drivers/dma/mediatek/mtk-cqdma.c +++ b/drivers/dma/mediatek/mtk-cqdma.c @@ -117,6 +117,7 @@ struct mtk_cqdma_vchan { * @clk: The clock that device internal is using * @dma_requests: The number of VCs the device supports to * @dma_channels: The number of PCs the device supports to + * @dma_mask: A mask for DMA capability * @vc: The pointer to all available VCs * @pc: The pointer to all the underlying PCs */ @@ -126,6 +127,7 @@ struct mtk_cqdma_device { u32 dma_requests; u32 dma_channels; + u32 dma_mask; struct mtk_cqdma_vchan *vc; struct mtk_cqdma_pchan **pc; }; @@ -607,6 +609,21 @@ static int mtk_cqdma_probe(struct platform_device *pdev) cqdma->dma_channels = MTK_CQDMA_NR_PCHANS; } + if (pdev->dev.of_node) + err = of_property_read_u32(pdev->dev.of_node, + "dma-channel-mask", + &cqdma->dma_mask); + if (err) { + dev_warn(&pdev->dev, + "Using 0 as missing dma-channel-mask property\n"); + cqdma->dma_mask = 0; + } + + if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(cqdma->dma_mask))) { + dev_warn(&pdev->dev, "DMA set mask failed\n"); + return -EINVAL; + } + cqdma->pc = devm_kcalloc(&pdev->dev, cqdma->dma_channels, sizeof(*cqdma->pc), GFP_KERNEL); if (!cqdma->pc)