From nobody Sun Sep 22 13:12:15 2024 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 7C112C433EF for ; Wed, 22 Dec 2021 16:15:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241689AbhLVQPv (ORCPT ); Wed, 22 Dec 2021 11:15:51 -0500 Received: from relmlor1.renesas.com ([210.160.252.171]:29248 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S238464AbhLVQPs (ORCPT ); Wed, 22 Dec 2021 11:15:48 -0500 X-IronPort-AV: E=Sophos;i="5.88,226,1635174000"; d="scan'208";a="104375078" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 23 Dec 2021 01:15:47 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 6E5D040A14AC; Thu, 23 Dec 2021 01:15:45 +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 2/3] dmaengine: mediatek: mtk-hsdma: Use platform_get_irq() to get the interrupt Date: Wed, 22 Dec 2021 16:15:33 +0000 Message-Id: <20211222161534.1263-3-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 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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-hsdma.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/dma/mediatek/mtk-hsdma.c b/drivers/dma/mediatek/mtk-hs= dma.c index 6ad8afbb95f2..c0fffde7fe08 100644 --- a/drivers/dma/mediatek/mtk-hsdma.c +++ b/drivers/dma/mediatek/mtk-hsdma.c @@ -923,13 +923,10 @@ static int mtk_hsdma_probe(struct platform_device *pd= ev) return PTR_ERR(hsdma->clk); } =20 - res =3D platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!res) { - dev_err(&pdev->dev, "No irq resource for %s\n", - dev_name(&pdev->dev)); - return -EINVAL; - } - hsdma->irq =3D res->start; + err =3D platform_get_irq(pdev, 0); + if (err < 0) + return err; + hsdma->irq =3D err; =20 refcount_set(&hsdma->pc_refcnt, 0); spin_lock_init(&hsdma->lock); --=20 2.17.1