From patchwork Sat Dec 18 16:52:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar Mahadev Lad X-Patchwork-Id: 526731 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 99B0CC433EF for ; Sat, 18 Dec 2021 16:53:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233658AbhLRQxQ (ORCPT ); Sat, 18 Dec 2021 11:53:16 -0500 Received: from relmlor2.renesas.com ([210.160.252.172]:49487 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S233678AbhLRQxP (ORCPT ); Sat, 18 Dec 2021 11:53:15 -0500 X-IronPort-AV: E=Sophos;i="5.88,216,1635174000"; d="scan'208";a="104388682" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 19 Dec 2021 01:53:15 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 1D25F40A5168; Sun, 19 Dec 2021 01:53:11 +0900 (JST) From: Lad Prabhakar To: Rob Herring , Nicolas Saenz Julienne , Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Chris Brandt , Wolfram Sang Cc: linux-i2c@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Lad Prabhakar Subject: [PATCH 3/3] i2c: riic: Use platform_get_irq() to get the interrupt Date: Sat, 18 Dec 2021 16:52:58 +0000 Message-Id: <20211218165258.16716-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211218165258.16716-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20211218165258.16716-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-i2c@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/i2c/busses/i2c-riic.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-riic.c b/drivers/i2c/busses/i2c-riic.c index 78b84445ee6a..f18b9fe86d4b 100644 --- a/drivers/i2c/busses/i2c-riic.c +++ b/drivers/i2c/busses/i2c-riic.c @@ -433,12 +433,12 @@ static int riic_i2c_probe(struct platform_device *pdev) } for (i = 0; i < ARRAY_SIZE(riic_irqs); i++) { - res = platform_get_resource(pdev, IORESOURCE_IRQ, riic_irqs[i].res_num); - if (!res) - return -ENODEV; + ret = platform_get_irq(pdev, riic_irqs[i].res_num); + if (ret <= 0) + return ret ? ret : -ENXIO; - ret = devm_request_irq(&pdev->dev, res->start, riic_irqs[i].isr, - 0, riic_irqs[i].name, riic); + ret = devm_request_irq(&pdev->dev, ret, riic_irqs[i].isr, + 0, riic_irqs[i].name, riic); if (ret) { dev_err(&pdev->dev, "failed to request irq %s\n", riic_irqs[i].name); return ret;