From patchwork Wed Dec 22 16:15:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 12697116 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2CCFFC433F5 for ; Wed, 22 Dec 2021 16:17:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=GWiVHve84qmfIn+zc/vl+OJND84kEWUK8xyGklnjgiM=; b=BgOUTZd6Sf9X5n BRnzNf+0I2A7L+n3W7Q/TmXh47E2+0XNx/vi0DiWJCi1u8Xpd5X/XW8fVDWr+d5sNkSbA7dVoCxZm oNrvPJFKmndSvENJQmuN+Db8xLCct8HGL6c81/PyB/qRHc7Am1MNl9LOvroQVI9oow32UbMBAYPyo c+LaRf/zIQK6zX8SrMeWfYNn7OUOkyVQ7TTUWA0HYcCzy2KwUo3wzebNkemBnD4ZWBufIOwev/ZPQ jQ+fSVYBjSAWwTYIjpBN9+XIXdOoVWJJF8mMBMAmsjaVzc6dtKhB192TunEGSCAT+KyY1tN3lX2kQ NxLIr2lFcsPUcQi8d+xw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1n04HX-00Aqlr-Oy; Wed, 22 Dec 2021 16:15:59 +0000 Received: from relmlor2.renesas.com ([210.160.252.172] helo=relmlie6.idc.renesas.com) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1n04HK-00Aqhr-TN; Wed, 22 Dec 2021 16:15:48 +0000 X-IronPort-AV: E=Sophos;i="5.88,226,1635174000"; d="scan'208";a="104850903" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 23 Dec 2021 01:15:45 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id D014140A14A3; Thu, 23 Dec 2021 01:15:42 +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 1/3] dmaengine: nbpfaxi: Use platform_get_irq_optional() to get the interrupt Date: Wed, 22 Dec 2021 16:15:32 +0000 Message-Id: <20211222161534.1263-2-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> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211222_081547_073414_7FD8834A X-CRM114-Status: GOOD ( 13.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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_optional(). There are no non-DT users for this driver so interrupt range (irq_res->start-irq_res->end) is no longer required and with DT we will be sure it will be a single IRQ resource for each index. Signed-off-by: Lad Prabhakar --- drivers/dma/nbpfaxi.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/dma/nbpfaxi.c b/drivers/dma/nbpfaxi.c index 9c52c57919c6..135c12b0a2df 100644 --- a/drivers/dma/nbpfaxi.c +++ b/drivers/dma/nbpfaxi.c @@ -1294,7 +1294,7 @@ static int nbpf_probe(struct platform_device *pdev) struct device_node *np = dev->of_node; struct nbpf_device *nbpf; struct dma_device *dma_dev; - struct resource *iomem, *irq_res; + struct resource *iomem; const struct nbpf_config *cfg; int num_channels; int ret, irq, eirq, i; @@ -1335,13 +1335,12 @@ static int nbpf_probe(struct platform_device *pdev) nbpf->config = cfg; for (i = 0; irqs < ARRAY_SIZE(irqbuf); i++) { - irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, i); - if (!irq_res) + irq = platform_get_irq_optional(pdev, i); + if (irq == -ENXIO) break; - - for (irq = irq_res->start; irq <= irq_res->end; - irq++, irqs++) - irqbuf[irqs] = irq; + if (irq < 0) + return irq; + irqbuf[irqs++] = irq; } /*