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 E4B63C433FE for ; Mon, 20 Dec 2021 01:04:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237082AbhLTBEo (ORCPT ); Sun, 19 Dec 2021 20:04:44 -0500 Received: from relmlor1.renesas.com ([210.160.252.171]:59820 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S237030AbhLTBEm (ORCPT ); Sun, 19 Dec 2021 20:04:42 -0500 X-IronPort-AV: E=Sophos;i="5.88,219,1635174000"; d="scan'208";a="104020226" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 20 Dec 2021 10:04:41 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id D1C50416745E; Mon, 20 Dec 2021 10:04:38 +0900 (JST) From: Lad Prabhakar To: Rob Herring , Greg Kroah-Hartman , linux-usb@vger.kernel.org, Peter Chen , Pawel Laszczak , Roger Quadros , Aswath Govindraju , Felipe Balbi , Rui Miguel Silva , Bin Liu Cc: linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar , Lad Prabhakar Subject: [PATCH 4/6] usb: isp1760: Use platform_get_irq() to get the interrupt Date: Mon, 20 Dec 2021 01:04:09 +0000 Message-Id: <20211220010411.12075-5-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211220010411.12075-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20211220010411.12075-1-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(). Also use irq_get_trigger_type to get the IRQ trigger flags. Signed-off-by: Lad Prabhakar --- drivers/usb/isp1760/isp1760-if.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/usb/isp1760/isp1760-if.c b/drivers/usb/isp1760/isp1760-if.c index 7cc349c0b2ad..65ba5aca2a4f 100644 --- a/drivers/usb/isp1760/isp1760-if.c +++ b/drivers/usb/isp1760/isp1760-if.c @@ -13,6 +13,7 @@ #include #include +#include #include #include #include @@ -191,17 +192,15 @@ static int isp1760_plat_probe(struct platform_device *pdev) unsigned long irqflags; unsigned int devflags = 0; struct resource *mem_res; - struct resource *irq_res; + int irq; int ret; mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!irq_res) { - pr_warn("isp1760: IRQ resource not available\n"); - return -ENODEV; - } - irqflags = irq_res->flags & IRQF_TRIGGER_MASK; + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + irqflags = irq_get_trigger_type(irq); if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) { struct device_node *dp = pdev->dev.of_node; @@ -239,8 +238,7 @@ static int isp1760_plat_probe(struct platform_device *pdev) return -ENXIO; } - ret = isp1760_register(mem_res, irq_res->start, irqflags, &pdev->dev, - devflags); + ret = isp1760_register(mem_res, irq, irqflags, &pdev->dev, devflags); if (ret < 0) return ret; -- 2.17.1