From patchwork Tue Dec 21 17:53:22 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: 527285 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 044F8C433EF for ; Tue, 21 Dec 2021 17:53:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240716AbhLURxj (ORCPT ); Tue, 21 Dec 2021 12:53:39 -0500 Received: from relmlor2.renesas.com ([210.160.252.172]:44637 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S240717AbhLURxi (ORCPT ); Tue, 21 Dec 2021 12:53:38 -0500 X-IronPort-AV: E=Sophos;i="5.88,224,1635174000"; d="scan'208";a="104728798" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 22 Dec 2021 02:53:37 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 0A30C40C95EF; Wed, 22 Dec 2021 02:53:34 +0900 (JST) From: Lad Prabhakar To: Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Nicolas Saenz Julienne , Chris Brandt , Wolfram Sang , linux-i2c@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-renesas-soc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Prabhakarprabhakar.csengg@gmail.com, Lad Prabhakar Subject: [PATCH v2 3/3] i2c: riic: Use platform_get_irq() to get the interrupt Date: Tue, 21 Dec 2021 17:53:22 +0000 Message-Id: <20211221175322.7096-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211221175322.7096-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20211221175322.7096-1-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 Reviewed-by: Wolfram Sang --- v1->v2 * Dropped IRQ0 check --- 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..8dfd27dc6149 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 = 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;