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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 2BA7FC3A59E for ; Wed, 21 Aug 2019 13:39:49 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 F1DBB23438 for ; Wed, 21 Aug 2019 13:39:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Waikglrs" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F1DBB23438 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:References: To:Subject:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=lUNbpFSRohR3h/2lue8GI78UQRj9vy/vXCYiUS+2nXA=; b=WaikglrslHiqFcD6Q0gxt55Tg 8W1CKAlU8QA0j0srrw+Tnw9H+5JFhoui6Q0wOXxjy/wP6l+4bhl/xwpvqESEanRsVgC2Agwpidru6 GRtmfcRgFymkR+jMoWRFetV/V/CB2BNzj2iy3YjT9BuRbsm2s4SHkVPcw3zd81+O7w8TH2tXYdu27 0OHYWwncuf9hsjwmlkY80EAgjmQwwLawAbvSZK76QKPhtxBnjw/5vNc+5MdWVu2p7ZTchzwi7azyo jSmOWphXD5wZ41IPOgpfROqmkn0QJtzkqYlmcFS8VKktpd8fyi96c6dXYJP00s9LBrJ1vcE05xSpn V3Qusg39Q==; 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 1i0Qpl-0005Vx-3W; Wed, 21 Aug 2019 13:39:29 +0000 Received: from szxga05-in.huawei.com ([45.249.212.191] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i0Qph-0005Ux-NR for linux-mtd@lists.infradead.org; Wed, 21 Aug 2019 13:39:27 +0000 Received: from DGGEMS411-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 654F640D1167F25D5595; Wed, 21 Aug 2019 21:39:19 +0800 (CST) Received: from [127.0.0.1] (10.202.227.238) by DGGEMS411-HUB.china.huawei.com (10.3.19.211) with Microsoft SMTP Server id 14.3.439.0; Wed, 21 Aug 2019 21:39:09 +0800 From: John Garry Subject: Re: [PATCH] docs: mtd: Update spi nor reference driver To: Mark Brown References: <1565107583-68506-1-git-send-email-john.garry@huawei.com> <6c4bb892-6cf5-af46-3ace-b333fd47ef14@huawei.com> <9b074db7-b95d-a081-2fba-7b2b82997332@kontron.de> <20190820165826.GF4738@sirena.co.uk> Message-ID: Date: Wed, 21 Aug 2019 14:39:02 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 In-Reply-To: <20190820165826.GF4738@sirena.co.uk> X-Originating-IP: [10.202.227.238] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190821_063925_953717_A4D2398C X-CRM114-Status: GOOD ( 11.03 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vignesh Raghavendra , "corbet@lwn.net" , "richard@nod.at" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Schrempf Frieder , "marek.vasut@gmail.com" , "linux-mtd@lists.infradead.org" , "tudor.ambarus@microchip.com" , "miquel.raynal@bootlin.com" , "mchehab+samsung@kernel.org" , wanghuiqiang Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On 20/08/2019 17:58, Mark Brown wrote: > On Tue, Aug 20, 2019 at 03:09:15PM +0100, John Garry wrote: >> On 19/08/2019 05:39, Vignesh Raghavendra wrote: >>> On 16/08/19 3:50 PM, John Garry wrote: > >>>> About the child spi flash devices, is the recommendation to just use >>>> PRP0001 HID and "jedec,spi-nor" compatible? > >>> I am not quite familiar with ACPI systems, but child flash device should >>> use "jedec,spi-nor" as compatible. > >> Right, so to use SPI MEM framework, it looks like I will have to use PRP0001 >> and "jedec,spi-nor" as compatible. > >> My reluctance in using PRP0001 and compatible "jedec,spi-nor" is how other >> OS can understand this. > Hi Mark, > Last I heard Windows wasn't doing anything with PRP0001 but on the other > hand the idiomatic way to handle this for ACPI is as far as I can tell > to have what is essentially a board file loaded based on DMI information > without any real enumerability so there's no real conflict between the > two methods. Fine, I'll consider this alt method further. Thanks, John > ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/