From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 19 Jan 2024 17:43:18 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1rQrxc-007HWA-36 for lore@lore.pengutronix.de; Fri, 19 Jan 2024 17:43:18 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rQrxd-0005OZ-L9 for lore@pengutronix.de; Fri, 19 Jan 2024 17:43:18 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=BVVi5JF7Dvy4U2CZoX0A89zmv/QXfYk3JAW4iXe3LvM=; b=NI59dNp3Oxm8xT4oMcwre+JhsK t0fq9GvikM786+5sn6YR6QOeZer8fm41NnCP3LyHqeZ9v39Pr/kkTxeE/zycpTQvNl0PLim14nKTj jKf9NgEqFtVcnhyTTRUjnJwEyR7VyVrK47NH7htGeHiiOkVAk7mTxq+4n4ipZX8SWf2NFaf2QpRf2 1qnnMrEs3pE39C8I/cfdyRcEHJ5JWT68DjiNWFZSa2rpUpldWo3pHABFD4fgT/OJze8bkwyhmeXYd NmrXH6X5RJmtUk6wPLOq8tAXsSpTouc9vK+WKh3bwAVLKO234uz2D2fCSyx00f+jDaU768k/TI3po DcKAkhSw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rQrwj-0069ff-2T; Fri, 19 Jan 2024 16:42:21 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rQrwc-0069Zu-0q for barebox@lists.infradead.org; Fri, 19 Jan 2024 16:42:16 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rQrwb-0004yl-4e; Fri, 19 Jan 2024 17:42:13 +0100 Received: from [2a0a:edc0:0:1101:1d::54] (helo=dude05.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rQrwa-000xYe-Ns; Fri, 19 Jan 2024 17:42:12 +0100 Received: from localhost ([::1] helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1rQrh8-0054dX-2M; Fri, 19 Jan 2024 17:26:14 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Fri, 19 Jan 2024 17:26:05 +0100 Message-Id: <20240119162610.1014870-15-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240119162610.1014870-1-a.fatoum@pengutronix.de> References: <20240119162610.1014870-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240119_084214_331457_62D2B382 X-CRM114-Status: GOOD ( 13.10 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-6.3 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 14/19] include: linux/device.h: implement dev_platform_ioremap_resource X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) There are more than a thousand instances of devm_platform_ioremap_resource across Linux drivers and porting it to barebox is cumbersome, because unlike Linux we don't remap, so the MMIO region may be at address zero. Now that dev_request_mem_region_err_null() prints a warning in that case, let's just use it to implement dev_platform_ioremap_resource(). Platforms with relevant MMIO at address 0 are scarce anyway and when we run on such a platform, we can always switch to use normal dev_request_mem_resource(). Signed-off-by: Ahmad Fatoum --- include/linux/device.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/linux/device.h b/include/linux/device.h index 0bd61154ac30..d892a9cb0ef5 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -32,6 +32,18 @@ #define driver_register register_driver #define driver_unregister unregister_driver + +static inline void __iomem *dev_platform_ioremap_resource(struct device *dev, + int resource) +{ + /* + * barebox maps everything outside the RAM banks suitably for MMIO, + * so we don't need to do anything besides requesting the regions + * and can leave the memory attributes unchanged. + */ + return dev_request_mem_region_err_null(dev, resource); +} + static inline void __iomem *devm_ioremap(struct device *dev, resource_size_t start, resource_size_t size) -- 2.39.2