From patchwork Mon Apr 15 13:49:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antonio Borneo X-Patchwork-Id: 13630096 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 7A8E2C4345F for ; Mon, 15 Apr 2024 13:51:16 +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:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=QrPz+D+rCLroAYUOsWLHtHYS1aCRg6hVRZOFHWgv10E=; b=IRJezalWXJtpe8 j2PgxOWXuIEpRQt5j4S7UuphkmKly+pDAQNnRT+AI56SX17FnDuoqUlkYt48VlP/MhCj39e9KuYAb 5uRbOWITsSXyE+FIwwOY9kpflNpKxKO5CUOfWEBxfajNgj29SoOV9xv8RvBSmntLNb/y/1ccf/V8x mKrSSndBBFVCD5XH+ykMQDcmOahIavaf1G+q/fl6Go0tSQVQiDjSKtpAfXQcKPLNq16+/ZYubu0nX dpzm4QHUlF2eWDw/RO0uOSgzlatTGLnWHY+/FCgWpf6AIO/yR9GGGKuc0R01hxWdvEfzTeL0LyxiK AEt19fPCzSUjIqaP6Hlg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rwMji-00000008ZhX-1QvY; Mon, 15 Apr 2024 13:51:06 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rwMjZ-00000008ZbG-07u6 for linux-arm-kernel@lists.infradead.org; Mon, 15 Apr 2024 13:50:59 +0000 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 43FC3ST3003618; Mon, 15 Apr 2024 15:50:34 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= selector1; bh=5YWdL5n+h1gRA11q2AbzymkOFkKZUlvchzUlWbpD6Mc=; b=BL +JsgxT0XxSiZReUVEq8/aeB5+dOWFOyf0LObotNegbpqaUeebIMnpox8nHokuox2 5+MmdXPKJO3e10VoxmF034DEH7rR/U9fWaRACf3TC5NQGd7pQaFYMXtzZAIfVAAx EQjacuo93CMTja4xDQNFUdlJhs3KjEPUcNR8alXlzL7mhtZrdNwg0csJzgk2hsZs 3z3pf8v+dWMIhOoOHaO4id3zc80sO2XTBvQ3aWahFpgHFCKY5i/m8yrywMK/8NmD wMVAivr6GMZ6wVVbFJV573F6uwqL5CGzz36xFg14uJg8IzNxraTdKqiZbkyWHSif CGAooiWqiO2tBPX3PjNQ== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3xgecy4eq7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 15 Apr 2024 15:50:34 +0200 (MEST) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 3DDA04002D; Mon, 15 Apr 2024 15:50:31 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 9A43821862F; Mon, 15 Apr 2024 15:49:45 +0200 (CEST) Received: from localhost (10.48.86.102) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Mon, 15 Apr 2024 15:49:45 +0200 From: Antonio Borneo To: Thomas Gleixner , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue , Catalin Marinas , Will Deacon CC: Antonio Borneo , Fabrice Gasnier , , , , Subject: [PATCH v2 03/11] irqchip/stm32-exti: Map interrupts through interrupts-extended Date: Mon, 15 Apr 2024 15:49:18 +0200 Message-ID: <20240415134926.1254428-4-antonio.borneo@foss.st.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240216094758.916722-1-antonio.borneo@foss.st.com> References: <20240216094758.916722-1-antonio.borneo@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.48.86.102] X-ClientProxiedBy: SAFCAS1NODE2.st.com (10.75.90.13) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-04-15_11,2024-04-15_01,2023-05-22_02 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240415_065057_585361_64942071 X-CRM114-Status: GOOD ( 16.34 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The mapping of EXTI events to its parent interrupt controller is both SoC and instance dependent. The current implementation requires adding a new mapping table to the driver's code and a new compatible for each new EXTI instance. Check for the presence of the optional interrupts-extended property and use it to map EXTI events to the parent's interrupts. For old DTs without the optional interrupts-extended property, the driver's behavior is unchanged, thus keeps backward compatibility. Signed-off-by: Antonio Borneo --- drivers/irqchip/irq-stm32-exti.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c index 3b35f138ed3d7..e5714a0111e7b 100644 --- a/drivers/irqchip/irq-stm32-exti.c +++ b/drivers/irqchip/irq-stm32-exti.c @@ -61,6 +61,7 @@ struct stm32_exti_host_data { struct stm32_exti_chip_data *chips_data; const struct stm32_exti_drv_data *drv_data; struct hwspinlock *hwlock; + bool dt_has_irqs_desc; /* skip internal desc_irqs array and get it from DT */ }; static struct stm32_exti_host_data *stm32_host_data; @@ -731,6 +732,23 @@ static int stm32_exti_h_domain_alloc(struct irq_domain *dm, irq_domain_set_hwirq_and_chip(dm, virq, hwirq, chip, chip_data); + if (host_data->dt_has_irqs_desc) { + struct of_phandle_args out_irq; + int ret; + + ret = of_irq_parse_one(host_data->dev->of_node, hwirq, &out_irq); + if (ret) + return ret; + /* we only support one parent, so far */ + if (of_node_to_fwnode(out_irq.np) != dm->parent->fwnode) + return -EINVAL; + + of_phandle_args_to_fwspec(out_irq.np, out_irq.args, + out_irq.args_count, &p_fwspec); + + return irq_domain_alloc_irqs_parent(dm, virq, 1, &p_fwspec); + } + if (!host_data->drv_data->desc_irqs) return -EINVAL; @@ -975,6 +993,9 @@ static int stm32_exti_probe(struct platform_device *pdev) if (ret) return ret; + if (of_property_read_bool(np, "interrupts-extended")) + host_data->dt_has_irqs_desc = true; + stm32_exti_h_syscore_init(host_data); return 0;