From patchwork Fri Feb 26 14:02:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 12106691 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=-16.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 4B5A7C433DB for ; Fri, 26 Feb 2021 14:05:19 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E534B64EF6 for ; Fri, 26 Feb 2021 14:05:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E534B64EF6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.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=EoympU5nKskHbDAstVERokvTCmNygxXHWX0zuWsKNH4=; b=B7uETCHqxAjLdsYjO78egILhL t5qraXW5f2ynpqTm5HDawtM1fQkj3KCsfxFr3i6EOws3A9D7Wxnsg4Fec5MDmxEk9uZer+DPlVlsh SpwL3pR7Dna/GIYuHqtrCJUe5ul93CxrGyxnktKf7rXBFiJCsn3knu9EA8nQ4HrmbaiT/6jGuGYgF 812MDXDIJq+GfUH1gND8g9StpGch2vwBsA1St6G+Em7TOI1rNrq1hGFWi3Gnj7wQTVeRryeEWw+Xh kQCZRCCGoPhQe2/NuTdQr76j+4od4v4TX8+ZqvOMexnV1DXMGwNXtdJWHT64JSDY5zGdKSi6iWMFX ljRiQdOGg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lFdiH-0003rR-M5; Fri, 26 Feb 2021 14:03:25 +0000 Received: from mx2.suse.de ([195.135.220.15]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lFdiD-0003nN-D6 for linux-arm-kernel@lists.infradead.org; Fri, 26 Feb 2021 14:03:22 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 70AB3B06A; Fri, 26 Feb 2021 14:03:18 +0000 (UTC) From: Nicolas Saenz Julienne To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC 04/13] driver core: plafrom: Introduce platform_mmio_configure() Date: Fri, 26 Feb 2021 15:02:56 +0100 Message-Id: <20210226140305.26356-5-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210226140305.26356-1-nsaenzjulienne@suse.de> References: <20210226140305.26356-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210226_090321_559942_EB211ACF X-CRM114-Status: GOOD ( 12.81 ) 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: f.fainelli@gmail.com, arnd@arndb.de, narmstrong@baylibre.com, dwmw2@infradead.org, linux@armlinux.org.uk, hch@infradead.org, will@kernel.org, robh+dt@kernel.org, catalin.marinas@arm.com, robin.murphy@arm.com, ardb@kernel.org, Nicolas Saenz Julienne Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The function will traverse the platform device's bus hierarchy and set the relevant MMIO access flags. Signed-off-by: Nicolas Saenz Julienne --- drivers/base/platform.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 6e1f8e0b661c..31772fd4ca1d 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -1504,6 +1504,14 @@ int platform_dma_configure(struct device *dev) return ret; } +static int platform_mmio_configure(struct device *dev) +{ + if (dev->parent && dev->parent->of_node) + return of_mmio_configure(dev, dev->parent->of_node); + + return 0; +} + static const struct dev_pm_ops platform_dev_pm_ops = { .runtime_suspend = pm_generic_runtime_suspend, .runtime_resume = pm_generic_runtime_resume, @@ -1519,6 +1527,7 @@ struct bus_type platform_bus_type = { .remove = platform_remove, .shutdown = platform_shutdown, .dma_configure = platform_dma_configure, + .mmio_configure = platform_mmio_configure, .pm = &platform_dev_pm_ops, }; EXPORT_SYMBOL_GPL(platform_bus_type);