Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DBD88C433EF for ; Wed, 22 Dec 2021 16:16:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238817AbhLVQP7 (ORCPT ); Wed, 22 Dec 2021 11:15:59 -0500 Received: from relmlor2.renesas.com ([210.160.252.172]:30791 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S241629AbhLVQPv (ORCPT ); Wed, 22 Dec 2021 11:15:51 -0500 X-IronPort-AV: E=Sophos;i="5.88,226,1635174000"; d="scan'208";a="104850912" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 23 Dec 2021 01:15:50 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 07A0440A14AC; Thu, 23 Dec 2021 01:15:47 +0900 (JST) From: Lad Prabhakar To: Sean Wang , Vinod Koul , Matthias Brugger , dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Cc: Rob Herring , linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Lad Prabhakar Subject: [PATCH 3/3] dmaengine: mediatek-cqdma: Use platform_get_irq() to get the interrupt Date: Wed, 22 Dec 2021 16:15:34 +0000 Message-Id: <20211222161534.1263-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211222161534.1263-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20211222161534.1263-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static allocation of IRQ resources in DT core code, this causes an issue when using hierarchical interrupt domains using "interrupts" property in the node as this bypasses the hierarchical setup and messes up the irq chaining. In preparation for removal of static setup of IRQ resource from DT core code use platform_get_irq(). Signed-off-by: Lad Prabhakar --- drivers/dma/mediatek/mtk-cqdma.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/dma/mediatek/mtk-cqdma.c b/drivers/dma/mediatek/mtk-cqdma.c index 41ef9f15d3d5..f8847c48ba03 100644 --- a/drivers/dma/mediatek/mtk-cqdma.c +++ b/drivers/dma/mediatek/mtk-cqdma.c @@ -751,7 +751,6 @@ static int mtk_cqdma_probe(struct platform_device *pdev) struct mtk_cqdma_device *cqdma; struct mtk_cqdma_vchan *vc; struct dma_device *dd; - struct resource *res; int err; u32 i; @@ -824,13 +823,10 @@ static int mtk_cqdma_probe(struct platform_device *pdev) return PTR_ERR(cqdma->pc[i]->base); /* allocate IRQ resource */ - res = platform_get_resource(pdev, IORESOURCE_IRQ, i); - if (!res) { - dev_err(&pdev->dev, "No irq resource for %s\n", - dev_name(&pdev->dev)); - return -EINVAL; - } - cqdma->pc[i]->irq = res->start; + err = platform_get_irq(pdev, i); + if (err < 0) + return err; + cqdma->pc[i]->irq = err; err = devm_request_irq(&pdev->dev, cqdma->pc[i]->irq, mtk_cqdma_irq, 0, dev_name(&pdev->dev), -- 2.17.1