From patchwork Fri Dec 24 19:58:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 12699121 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 96597C433F5 for ; Fri, 24 Dec 2021 19:58:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353481AbhLXT6Z (ORCPT ); Fri, 24 Dec 2021 14:58:25 -0500 Received: from relmlor1.renesas.com ([210.160.252.171]:50522 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S239476AbhLXT6Z (ORCPT ); Fri, 24 Dec 2021 14:58:25 -0500 X-IronPort-AV: E=Sophos;i="5.88,233,1635174000"; d="scan'208";a="104636686" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 25 Dec 2021 04:58:24 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 8EC8340078A8; Sat, 25 Dec 2021 04:58:22 +0900 (JST) From: Lad Prabhakar To: Nishanth Menon , Santosh Shilimkar Cc: Rob Herring , linux-kernel@vger.kernel.org, Prabhakar , Lad Prabhakar , linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2] soc: ti: smartreflex: Use platform_get_irq() to get the interrupt Date: Fri, 24 Dec 2021 19:58:17 +0000 Message-Id: <20211224195818.26081-1-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-pm@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 --- v1->v2 * Updated commit message * Drop check for IRQ0 * Switched to using platform_get_irq() so that the probe won't fail silently as requested by Nishanth. v1: * https://www.spinics.net/lists/arm-kernel/msg942549.html --- drivers/soc/ti/smartreflex.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/soc/ti/smartreflex.c b/drivers/soc/ti/smartreflex.c index b5b2fa538d5c..3e2cddad0d93 100644 --- a/drivers/soc/ti/smartreflex.c +++ b/drivers/soc/ti/smartreflex.c @@ -819,7 +819,7 @@ static int omap_sr_probe(struct platform_device *pdev) { struct omap_sr *sr_info; struct omap_sr_data *pdata = pdev->dev.platform_data; - struct resource *mem, *irq; + struct resource *mem; struct dentry *nvalue_dir; int i, ret = 0; @@ -844,7 +844,12 @@ static int omap_sr_probe(struct platform_device *pdev) if (IS_ERR(sr_info->base)) return PTR_ERR(sr_info->base); - irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + ret = platform_get_irq(pdev, 0); + if (ret < 0 && ret != -ENXIO) + return ret; + if (ret > 0) + sr_info->irq = ret; + ret = 0; sr_info->fck = devm_clk_get(pdev->dev.parent, "fck"); if (IS_ERR(sr_info->fck)) @@ -870,9 +875,6 @@ static int omap_sr_probe(struct platform_device *pdev) sr_info->autocomp_active = false; sr_info->ip_type = pdata->ip_type; - if (irq) - sr_info->irq = irq->start; - sr_set_clk_length(sr_info); list_add(&sr_info->node, &sr_list);