From patchwork Mon Oct 30 18:48:31 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Pitre X-Patchwork-Id: 117500 Delivered-To: patch@linaro.org Received: by 10.80.245.45 with SMTP id t42csp2987548edm; Mon, 30 Oct 2017 11:51:00 -0700 (PDT) X-Google-Smtp-Source: ABhQp+RwhSDvc3x1jdZzQSBAxJTbAPw1bH53RXmkwNVyKBAG4i7Tj1b14anEwhTvPebjW3jNa/6C X-Received: by 10.159.194.204 with SMTP id u12mr8031174plz.401.1509389460785; Mon, 30 Oct 2017 11:51:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1509389460; cv=none; d=google.com; s=arc-20160816; b=cTU8+4zqopQLRhzgw0ZJViAwNZ8qI8NCLq653LupSRNsv0ww1WLtLQcYLJChmRU5Lp eDdaj7tAldnzaoRgUj1B0aX3axM09VYVjIRavxz0eVgrgy9VjHi4ITSyciSJ8Q2h6Tjw xv73tLjJjV2zzHYEsHt+2J7+0Qw29oxYRLEXjxYS4E2nucadFVmvd/CQZD+42J12tZJ7 GSvf4rnb+XPnKRBACE1DsbVIMmtyTHpAD2w1VZBu+mrnumrJNufP7c1KB/2uB3U5T+0O 2DfkvrEt9gCWUAeOMnqtxZurR2CBT1hgnuWGzU7CigyQmfF06nVZjwX+K6MLy5+RHFJ8 qSjQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=errors-to:sender:content-transfer-encoding:mime-version:cc :list-subscribe:list-help:list-post:list-archive:list-unsubscribe :list-id:precedence:references:in-reply-to:message-id:date:subject :to:from:dkim-signature:dkim-signature:arc-authentication-results; bh=0EfIN55V7zl+4Jx2yQuBCpFG8mARzHzNwj7krUzyaUI=; b=sUo+JKMSOlnTcV+GKswkzai1nsDNL6HOcOu58MM9YfenNSTu7zuFcBCvpMWVEC0jd7 2mByDnsJKCQ+hvLNiyoRUtsx+S5N36dt3kEcr5ya6+4Cd45ypXxr7BUa0EMNKoldCj3g O72JtNFyTOkoP+TzJZR8vQTKpabXIuHBft5woN+w78weCLYGSw0cOCI1qX513Ak/m5Ep oSa8RgyS9BkAAGN65q4WgQ2gahLW6JO+q9YRbZSaTUgAC1nYTZk+bwghcVCi+L0RPGqx O/PKnGFGKf8kB4SzD/slHG1e9Dv10j7RPjOLbeVwQh9fDOTjeGGTl4ynf3sjLt1RSMMQ jHAw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@lists.infradead.org header.s=bombadil.20170209 header.b=I2QSZNz/; dkim=neutral (body hash did not verify) header.i=@pobox.com header.s=sasl header.b=pDCpKDJ5; spf=pass (google.com: best guess record for domain of linux-mtd-bounces+patch=linaro.org@lists.infradead.org designates 65.50.211.133 as permitted sender) smtp.mailfrom=linux-mtd-bounces+patch=linaro.org@lists.infradead.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from bombadil.infradead.org (bombadil.infradead.org. [65.50.211.133]) by mx.google.com with ESMTPS id g67si4791764pgc.614.2017.10.30.11.51.00 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 30 Oct 2017 11:51:00 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-mtd-bounces+patch=linaro.org@lists.infradead.org designates 65.50.211.133 as permitted sender) client-ip=65.50.211.133; Authentication-Results: mx.google.com; dkim=pass header.i=@lists.infradead.org header.s=bombadil.20170209 header.b=I2QSZNz/; dkim=neutral (body hash did not verify) header.i=@pobox.com header.s=sasl header.b=pDCpKDJ5; spf=pass (google.com: best guess record for domain of linux-mtd-bounces+patch=linaro.org@lists.infradead.org designates 65.50.211.133 as permitted sender) smtp.mailfrom=linux-mtd-bounces+patch=linaro.org@lists.infradead.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org 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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=0EfIN55V7zl+4Jx2yQuBCpFG8mARzHzNwj7krUzyaUI=; b=I2QSZNz/Llp6RncDINdNgx0wFP d+evqIBZ0m6BfH46mKU0a4SDX85TNZdAwxy3KuGSbRt3C5f3wvphWnIH7eI78D4Wp/m4bSdm0vV/3 WewWzZGSHommSNdnIi790voERkTDdba9gKKXpDbvd4c6VXCs+yPxynWPJEWHXT/XUpH4I0Uor/iB8 dOfSzk5Y9hR/0a6rDR9KOjgt8FZb9UCfCqqSUlnJetaT9LiRlmsXg/eZ9hDxJh0OVpb4xM+XPeW+3 0o0I35WcQM0fkFQHeuxS3fg57zRBvhZmgzUdn03ADM0ZA/xvr/1fkAXZlWM0JEZG+iZvZIxwFpdh+ U88z79pw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1e9F94-0002XM-EG; Mon, 30 Oct 2017 18:50:46 +0000 Received: from pb-smtp2.pobox.com ([64.147.108.71] helo=sasl.smtp.pobox.com) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1e9F7M-0000MY-DE for linux-mtd@lists.infradead.org; Mon, 30 Oct 2017 18:49:06 +0000 Received: from sasl.smtp.pobox.com (unknown [127.0.0.1]) by pb-smtp2.pobox.com (Postfix) with ESMTP id 68B37A1E0F; Mon, 30 Oct 2017 14:48:38 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=from:to:cc :subject:date:message-id:in-reply-to:references; s=sasl; bh=dSGy LMtCEZHgxRxB7BoMQsLs8FU=; b=pDCpKDJ5fq+yYDLd3u/qdZc9lkqHNA39mtys +hDLYuSbwVDQgDbP9mxmzQxmaOs9VzowLFfPzV4AyyC0b22NcFTrEy74b5p0lHb4 jOnsFxeeIXg6BVhALgaRaBNM4qSFs3fr60bPHTS94tWxtqp9NmSj/2KS6I4aLWOw 9dtyInk= Received: from pb-smtp2.nyi.icgroup.com (unknown [127.0.0.1]) by pb-smtp2.pobox.com (Postfix) with ESMTP id 612FAA1E0E; Mon, 30 Oct 2017 14:48:38 -0400 (EDT) Received: from yoda.home (unknown [137.175.234.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by pb-smtp2.pobox.com (Postfix) with ESMTPSA id BBB85A1E06; Mon, 30 Oct 2017 14:48:37 -0400 (EDT) Received: from xanadu.home (xanadu.home [192.168.2.2]) by yoda.home (Postfix) with ESMTP id DB3372DA059F; Mon, 30 Oct 2017 14:48:36 -0400 (EDT) From: Nicolas Pitre To: Boris Brezillon , Richard Weinberger Subject: [PATCH v3 3/5] MTD: chips/map_rom.c: implement point and unpoint methods Date: Mon, 30 Oct 2017 14:48:31 -0400 Message-Id: <20171030184833.20709-4-nicolas.pitre@linaro.org> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20171030184833.20709-1-nicolas.pitre@linaro.org> References: <20171030184833.20709-1-nicolas.pitre@linaro.org> X-Pobox-Relay-ID: F0A5845A-BDA2-11E7-948D-575F0C78B957-78420484!pb-smtp2.pobox.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20171030_114900_674632_66F62BBF X-CRM114-Status: GOOD ( 11.87 ) X-Spam-Score: -1.9 (-) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-1.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [64.147.108.71 listed in list.dnswl.org] 0.7 SPF_SOFTFAIL SPF: sender does not match SPF record (softfail) -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chris Brandt , linux-mtd@lists.infradead.org MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+patch=linaro.org@lists.infradead.org This will allow for the removal of the get_unmapped_area method later. Signed-off-by: Nicolas Pitre Acked-by: Boris Brezillon Tested-by: Chris Brandt --- drivers/mtd/chips/map_rom.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) -- 2.9.5 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/ diff --git a/drivers/mtd/chips/map_rom.c b/drivers/mtd/chips/map_rom.c index e67f73ab44..722afb1cf4 100644 --- a/drivers/mtd/chips/map_rom.c +++ b/drivers/mtd/chips/map_rom.c @@ -22,6 +22,10 @@ static struct mtd_info *map_rom_probe(struct map_info *map); static int maprom_erase (struct mtd_info *mtd, struct erase_info *info); static unsigned long maprom_unmapped_area(struct mtd_info *, unsigned long, unsigned long, unsigned long); +static int maprom_point (struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, void **virt, resource_size_t *phys); +static int maprom_unpoint(struct mtd_info *mtd, loff_t from, size_t len); + static struct mtd_chip_driver maprom_chipdrv = { .probe = map_rom_probe, @@ -52,6 +56,8 @@ static struct mtd_info *map_rom_probe(struct map_info *map) mtd->type = MTD_ROM; mtd->size = map->size; mtd->_get_unmapped_area = maprom_unmapped_area; + mtd->_point = maprom_point; + mtd->_unpoint = maprom_unpoint; mtd->_read = maprom_read; mtd->_write = maprom_write; mtd->_sync = maprom_nop; @@ -78,6 +84,24 @@ static unsigned long maprom_unmapped_area(struct mtd_info *mtd, { struct map_info *map = mtd->priv; return (unsigned long) map->virt + offset; + +static int maprom_point(struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, void **virt, resource_size_t *phys) +{ + struct map_info *map = mtd->priv; + + if (!map->virt) + return -EINVAL; + *virt = map->virt + from; + if (phys) + *phys = map->phys + from; + *retlen = len; + return 0; +} + +static int maprom_unpoint(struct mtd_info *mtd, loff_t from, size_t len) +{ + return 0; } static int maprom_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)