From patchwork Fri Aug 9 09:31:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 11086081 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2AB256C5 for ; Fri, 9 Aug 2019 09:34:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 17BAA28C5B for ; Fri, 9 Aug 2019 09:34:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0B45128C5E; Fri, 9 Aug 2019 09:34:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 97D1528C5B for ; Fri, 9 Aug 2019 09:34:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=bW0AYszz8Xhb5UO97cVLnk5kjNq/a+aDI6caRQ6Qr1U=; b=Vn0z/azIqho0ux 4lSXTQPdF8wmbrDQNF+aDGUH0+BiROuCZnp3n2XoXu715xD1IW0X1BmveQmZHXE9CpnG9NWK6F5j0 JDZYogJ/5H9Chbyi3ENbYyweLyyHgQrWe0UKSHY81aD3Kih2DbB8CYX0j0rK2WmieEmFROe1kCkpM 07yXrFamAbREk+LatssSeIEWM+sDYVtijXvMapppnHKKRL5d7eaehtCJd9V247KJgdm3/aV14sP/W EDwfZqVu47CFkGkfm+d8uq79vw/JK/jlpgq8Oe8K7o17ZxMYInytHv9dcdNrX79YEQOP0aOSwwhp8 DzShS63H2bNwuZXv3+bg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hw1IJ-00057q-5F; Fri, 09 Aug 2019 09:34:43 +0000 Received: from shell.v3.sk ([90.176.6.54]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hw1Gn-0003ci-G0 for linux-arm-kernel@lists.infradead.org; Fri, 09 Aug 2019 09:33:11 +0000 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 1463AD63C5; Fri, 9 Aug 2019 11:33:07 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id INB1BAhD0YMU; Fri, 9 Aug 2019 11:32:37 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id A1066D63CE; Fri, 9 Aug 2019 11:32:19 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id t41b6dnic8-d; Fri, 9 Aug 2019 11:32:14 +0200 (CEST) Received: from furthur.local (ip-37-188-137-236.eurotel.cz [37.188.137.236]) by zimbra.v3.sk (Postfix) with ESMTPSA id 8A6FBD63C2; Fri, 9 Aug 2019 11:32:12 +0200 (CEST) From: Lubomir Rintel To: Olof Johansson Subject: [PATCH 05/19] irqchip/mmp: do not use of_address_to_resource() to get mux regs Date: Fri, 9 Aug 2019 11:31:44 +0200 Message-Id: <20190809093158.7969-6-lkundrak@v3.sk> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190809093158.7969-1-lkundrak@v3.sk> References: <20190809093158.7969-1-lkundrak@v3.sk> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190809_023309_951881_64572866 X-CRM114-Status: GOOD ( 12.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Jason Cooper , Stephen Boyd , Marc Zyngier , Michael Turquette , Russell King , Kishon Vijay Abraham I , Lubomir Rintel , Rob Herring , linux-arm-kernel@lists.infradead.org, Pavel Machek , Thomas Gleixner , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The "regs" property of the "mrvl,mmp2-mux-intc" devices are silly. They are offsets from intc's base, not addresses on the parent bus. At this point it probably can't be fixed. On an OLPC XO-1.75 machine, the muxes are children of the intc, not the axi bus, and thus of_address_to_resource() won't work. We should treat the values as mere integers as opposed to bus addresses. Signed-off-by: Lubomir Rintel Acked-by: Pavel Machek --- drivers/irqchip/irq-mmp.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/irqchip/irq-mmp.c b/drivers/irqchip/irq-mmp.c index 14618dc0bd396..af9cba4a51c2e 100644 --- a/drivers/irqchip/irq-mmp.c +++ b/drivers/irqchip/irq-mmp.c @@ -424,9 +424,9 @@ IRQCHIP_DECLARE(mmp2_intc, "mrvl,mmp2-intc", mmp2_of_init); static int __init mmp2_mux_of_init(struct device_node *node, struct device_node *parent) { - struct resource res; int i, ret, irq, j = 0; u32 nr_irqs, mfp_irq; + u32 reg[4]; if (!parent) return -ENODEV; @@ -438,18 +438,20 @@ static int __init mmp2_mux_of_init(struct device_node *node, pr_err("Not found mrvl,intc-nr-irqs property\n"); return -EINVAL; } - ret = of_address_to_resource(node, 0, &res); + + /* + * For historical reasonsm, the "regs" property of the + * mrvl,mmp2-mux-intc is not a regular * "regs" property containing + * addresses on the parent bus, but offsets from the intc's base. + * That is why we can't use of_address_to_resource() here. + */ + ret = of_property_read_u32_array(node, "reg", reg, ARRAY_SIZE(reg)); if (ret < 0) { pr_err("Not found reg property\n"); return -EINVAL; } - icu_data[i].reg_status = mmp_icu_base + res.start; - ret = of_address_to_resource(node, 1, &res); - if (ret < 0) { - pr_err("Not found reg property\n"); - return -EINVAL; - } - icu_data[i].reg_mask = mmp_icu_base + res.start; + icu_data[i].reg_status = mmp_icu_base + reg[0]; + icu_data[i].reg_mask = mmp_icu_base + reg[2]; icu_data[i].cascade_irq = irq_of_parse_and_map(node, 0); if (!icu_data[i].cascade_irq) return -EINVAL;