From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 32B59C432C0 for ; Mon, 18 Nov 2019 11:26:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F1E032068D for ; Mon, 18 Nov 2019 11:26:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=rasmusvillemoes.dk header.i=@rasmusvillemoes.dk header.b="KmYgpOs0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727716AbfKRL0G (ORCPT ); Mon, 18 Nov 2019 06:26:06 -0500 Received: from mail-wm1-f68.google.com ([209.85.128.68]:37844 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727114AbfKRLXz (ORCPT ); Mon, 18 Nov 2019 06:23:55 -0500 Received: by mail-wm1-f68.google.com with SMTP id b17so18333408wmj.2 for ; Mon, 18 Nov 2019 03:23:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rasmusvillemoes.dk; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=E9MniY1Iee5HGhOe/xollIck0/KPXWyQbXSm1b3gOvo=; b=KmYgpOs03WlRSKWe25/tIn9VSvLYe/epSNDIYgK8wAr/FkEbkodUxcOvwDHl0iMXx1 Q7Fz/OZcylQNKuX0kdyaWA5h5ANdUjaux3BmXbKFKLjXi+V5HXXpPUTLCp9t3I0LYFOn OWF2SoCtnbuXsbrG8Dms2j8Rm9M+BO+SEO8Ok= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=E9MniY1Iee5HGhOe/xollIck0/KPXWyQbXSm1b3gOvo=; b=I2Kzcp5NdDDk148skrq+lS1KhSh1QUq8LmnDc5mjWhDQAje2y4AWX8eR/aTzNJq6vv MK02ugSNvkEQjzENCBSUNH0qKlPV56LrvLrhMQYkfmeYp4aVm2Ck1cD/1oU4hzu3UNyW sH4TSfW+ktgmRnRuZtN9qumtm+4A6mMoOexog1qkmSCLDYcWDprC4yFj4JTuXzX82rk0 fq+QGG/VHx75RRGl1+f/2uInWZJzvn6Ld4NCwQ5hZEbDfe52k8Wg/lKHI4BK7BuwxxRS F0O7zntzzk9TQNyGAz9IYOTmSUl9VHmivoiK/MzXTCQYIK9L0HW52csbLkUfX9igoIm2 osqQ== X-Gm-Message-State: APjAAAUJKIG6SQAl3SJdNbihtzRcPqtEIXJSuStSaEMMpzoCDTtp1Nen dAH132OjEJpHePnL5GKNLHNSJQ== X-Google-Smtp-Source: APXvYqxZcCNNXSs5JK4j/71NfJC5T9Ojx0yMJuAKnaNO6Kk/zJ3sCMcq8gy935CfGfKPJG2JCRN2/Q== X-Received: by 2002:a7b:ce12:: with SMTP id m18mr30519450wmc.130.1574076234050; Mon, 18 Nov 2019 03:23:54 -0800 (PST) Received: from prevas-ravi.prevas.se (ip-5-186-115-54.cgn.fibianet.dk. [5.186.115.54]) by smtp.gmail.com with ESMTPSA id y2sm21140815wmy.2.2019.11.18.03.23.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Nov 2019 03:23:53 -0800 (PST) From: Rasmus Villemoes To: Qiang Zhao , Li Yang , Christophe Leroy Cc: linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Scott Wood , Timur Tabi , Rasmus Villemoes Subject: [PATCH v5 18/48] soc: fsl: qe: don't use NO_IRQ in qe_ic.c Date: Mon, 18 Nov 2019 12:22:54 +0100 Message-Id: <20191118112324.22725-19-linux@rasmusvillemoes.dk> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191118112324.22725-1-linux@rasmusvillemoes.dk> References: <20191118112324.22725-1-linux@rasmusvillemoes.dk> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This driver is currently PPC-only, and on powerpc, NO_IRQ is 0, so this doesn't change functionality. However, not every architecture defines NO_IRQ, and some define it as -1, so the detection of a failed irq_of_parse_and_map() (which returns 0 on failure) would be wrong on those. So to prepare for allowing this driver to build on other architectures, drop all references to NO_IRQ. Signed-off-by: Rasmus Villemoes --- drivers/soc/fsl/qe/qe_ic.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/drivers/soc/fsl/qe/qe_ic.c b/drivers/soc/fsl/qe/qe_ic.c index 4839dcd5c5d3..8f74bc6efd5c 100644 --- a/drivers/soc/fsl/qe/qe_ic.c +++ b/drivers/soc/fsl/qe/qe_ic.c @@ -282,7 +282,7 @@ static const struct irq_domain_ops qe_ic_host_ops = { .xlate = irq_domain_xlate_onetwocell, }; -/* Return an interrupt vector or NO_IRQ if no interrupt is pending. */ +/* Return an interrupt vector or 0 if no interrupt is pending. */ unsigned int qe_ic_get_low_irq(struct qe_ic *qe_ic) { int irq; @@ -293,12 +293,12 @@ unsigned int qe_ic_get_low_irq(struct qe_ic *qe_ic) irq = qe_ic_read(qe_ic->regs, QEIC_CIVEC) >> 26; if (irq == 0) - return NO_IRQ; + return 0; return irq_linear_revmap(qe_ic->irqhost, irq); } -/* Return an interrupt vector or NO_IRQ if no interrupt is pending. */ +/* Return an interrupt vector or 0 if no interrupt is pending. */ unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic) { int irq; @@ -309,7 +309,7 @@ unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic) irq = qe_ic_read(qe_ic->regs, QEIC_CHIVEC) >> 26; if (irq == 0) - return NO_IRQ; + return 0; return irq_linear_revmap(qe_ic->irqhost, irq); } @@ -320,7 +320,7 @@ static void qe_ic_cascade_low(struct irq_desc *desc) unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic); struct irq_chip *chip = irq_desc_get_chip(desc); - if (cascade_irq != NO_IRQ) + if (cascade_irq != 0) generic_handle_irq(cascade_irq); if (chip->irq_eoi) @@ -333,7 +333,7 @@ static void qe_ic_cascade_high(struct irq_desc *desc) unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic); struct irq_chip *chip = irq_desc_get_chip(desc); - if (cascade_irq != NO_IRQ) + if (cascade_irq != 0) generic_handle_irq(cascade_irq); if (chip->irq_eoi) @@ -347,10 +347,10 @@ static void qe_ic_cascade_muxed_mpic(struct irq_desc *desc) struct irq_chip *chip = irq_desc_get_chip(desc); cascade_irq = qe_ic_get_high_irq(qe_ic); - if (cascade_irq == NO_IRQ) + if (cascade_irq == 0) cascade_irq = qe_ic_get_low_irq(qe_ic); - if (cascade_irq != NO_IRQ) + if (cascade_irq != 0) generic_handle_irq(cascade_irq); chip->irq_eoi(&desc->irq_data); @@ -386,7 +386,7 @@ static void __init qe_ic_init(struct device_node *node, unsigned int flags) qe_ic->virq_high = irq_of_parse_and_map(node, 0); qe_ic->virq_low = irq_of_parse_and_map(node, 1); - if (qe_ic->virq_low == NO_IRQ) { + if (!qe_ic->virq_low) { printk(KERN_ERR "Failed to map QE_IC low IRQ\n"); kfree(qe_ic); return; @@ -423,8 +423,7 @@ static void __init qe_ic_init(struct device_node *node, unsigned int flags) irq_set_handler_data(qe_ic->virq_low, qe_ic); irq_set_chained_handler(qe_ic->virq_low, low_handler); - if (qe_ic->virq_high != NO_IRQ && - qe_ic->virq_high != qe_ic->virq_low) { + if (qe_ic->virq_high && qe_ic->virq_high != qe_ic->virq_low) { irq_set_handler_data(qe_ic->virq_high, qe_ic); irq_set_chained_handler(qe_ic->virq_high, high_handler); } -- 2.23.0