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=0.2 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,URIBL_DBL_ABUSE_MALW,USER_AGENT_SANE_2 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 9138CC2D0DB for ; Mon, 27 Jan 2020 14:36:26 +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 64DA020702 for ; Mon, 27 Jan 2020 14:36:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="pJNSPKyB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 64DA020702 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.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-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:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=WCHJOjrtp/mrajb93dqs9pLRb4XjDo0TmScSJAcm3xM=; b=pJNSPKyBbJRbQo RKuwbKPBBZw66FNsqDHaQyPyJt5E64FZWgREKyVMfnuoY5CDuhZPJ8phej15XpVKuzf3RxhPwgDyC oE7qHlaBy5RHvJp/6QZw3j5E1ihvBBrLQyIyfQKgSKOs9JYcLlG+CjxIpwZpedmUjCzRmjHa50Tcq k5yIOSXNEvedvzhQ04+/R1MTil5ft+I/5Q90LsLUcPH8nKcpbnN5ZgM8EMqg3wGzmeITBDR2KLQF4 5kWBk6r/mnYV1XoQjoof2MIr9JBaTfzTqIYA0S/VsvE6foQll1H+zKkhq593VVrjA6ZyO8ezxMYWc oqRDlGS7cr6661X4+QKQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iw5Us-0004Td-Tb; Mon, 27 Jan 2020 14:36:14 +0000 Received: from relay8-d.mail.gandi.net ([217.70.183.201]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iw5Up-0004T6-Gv for linux-mtd@lists.infradead.org; Mon, 27 Jan 2020 14:36:13 +0000 X-Originating-IP: 90.76.211.102 Received: from xps13 (lfbn-tou-1-1151-102.w90-76.abo.wanadoo.fr [90.76.211.102]) (Authenticated sender: miquel.raynal@bootlin.com) by relay8-d.mail.gandi.net (Postfix) with ESMTPSA id 588AC1BF204; Mon, 27 Jan 2020 14:36:00 +0000 (UTC) Date: Mon, 27 Jan 2020 15:35:59 +0100 From: Miquel Raynal To: Masahiro Yamada Subject: Re: How to handle write-protect pin of NAND device ? Message-ID: <20200127153559.60a83e76@xps13> In-Reply-To: References: Organization: Bootlin X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200127_063611_696898_0FC94D97 X-CRM114-Status: GOOD ( 20.16 ) 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: linux-mtd , Linux Kernel Mailing List , Boris Brezillon Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org SGkgTWFzYWhpcm8sCgpNYXNhaGlybyBZYW1hZGEgPG1hc2FoaXJveUBrZXJuZWwub3JnPiB3cm90 ZSBvbiBNb24sIDI3IEphbiAyMDIwCjIxOjU1OjI1ICswOTAwOgoKPiBIaS4KPiAKPiBJIGhhdmUg YSBxdWVzdGlvbiBhYm91dCB0aGUKPiBXUF9uIHBpbiBvZiBhIE5BTkQgY2hpcC4KPiAKPiAKPiBB cyBmYXIgYXMgSSBzZWUsIHRoZSBOQU5EIGZyYW1ld29yayBkb2VzIG5vdAo+IGhhbmRsZSBpdC4K ClRoZXJlIGlzIGEgbmFuZF9jaGVja193cCgpIHdoaWNoIHJlYWRzIHRoZSBzdGF0dXMgb2YgdGhl IHBpbiBiZWZvcmUKZXJhc2luZy93cml0aW5nLgoKPiAKPiBJbnN0ZWFkLCBpdCBpcyBoYW5kbGVk IGluIGEgZHJpdmVyIGxldmVsLgo+IEkgc2VlIHNvbWUgRFQtYmluZGluZ3MgdGhhdCBoYW5kbGUg dGhlIFdQX24gcGluLgo+IAo+ICQgZ2l0IGdyZXAgd3AgLS0gRG9jdW1lbnRhdGlvbi9kZXZpY2V0 cmVlL2JpbmRpbmdzL210ZC8KPiBEb2N1bWVudGF0aW9uL2RldmljZXRyZWUvYmluZGluZ3MvbXRk L2JyY20sYnJjbW5hbmQudHh0Oi0KPiBicmNtLG5hbmQtaGFzLXdwICAgICAgICAgIDogU29tZSB2 ZXJzaW9ucyBvZiB0aGlzIElQIGluY2x1ZGUgYQo+IHdyaXRlLXByb3RlY3QKCkp1c3QgY2hlY2tl ZDogYnJjbW5hbmQgZGUtYXNzZXJ0IFdQIHdoZW4gd3JpdGluZy9lcmFzaW5nIGFuZCBhc3NlcnRz IGl0Cm90aGVyd2lzZS4gSU1ITyB0aGlzIHN3aXRjaGluZyBpcyB1c2VsZXNzLgoKPiBEb2N1bWVu dGF0aW9uL2RldmljZXRyZWUvYmluZGluZ3MvbXRkL2luZ2VuaWMsano0NzgwLW5hbmQudHh0Oi0K PiB3cC1ncGlvczogR1BJTyBzcGVjaWZpZXIgZm9yIHRoZSB3cml0ZSBwcm90ZWN0IHBpbi4KPiBE b2N1bWVudGF0aW9uL2RldmljZXRyZWUvYmluZGluZ3MvbXRkL2luZ2VuaWMsano0NzgwLW5hbmQu dHh0Ogo+ICAgICAgICAgIHdwLWdwaW9zID0gPCZncGYgMjIgR1BJT19BQ1RJVkVfTE9XPjsKPiBE b2N1bWVudGF0aW9uL2RldmljZXRyZWUvYmluZGluZ3MvbXRkL252aWRpYS10ZWdyYTIwLW5hbmQu dHh0Oi0KPiB3cC1ncGlvczogR1BJTyBzcGVjaWZpZXIgZm9yIHRoZSB3cml0ZSBwcm90ZWN0IHBp bi4KPiBEb2N1bWVudGF0aW9uL2RldmljZXRyZWUvYmluZGluZ3MvbXRkL252aWRpYS10ZWdyYTIw LW5hbmQudHh0Ogo+ICAgICAgICAgIHdwLWdwaW9zID0gPCZncGlvIFRFR1JBX0dQSU8oUywgMCkg R1BJT19BQ1RJVkVfTE9XPjsKCkluIGJvdGggY2FzZXMsIHRoZSBXUCBHUElPIGlzIHVudXNlZCBp biB0aGUgY29kZSwganVzdCBkZS1hc3NlcnRlZCBhdApib290IHRpbWUgbGlrZSB3aGF0IHlvdSBk byBpbiB0aGUgcGF0Y2ggYmVsb3cuCgo+IAo+IAo+IAo+IEkgd3JvdGUgYSBwYXRjaCB0byBhdm9p ZCByZWFkLW9ubHkgaXNzdWUgaW4gc29tZSBjYXNlczoKPiBodHRwOi8vcGF0Y2h3b3JrLm96bGFi cy5vcmcvcGF0Y2gvMTIyOTc0OS8KPiAKPiBHZW5lcmFsbHkgc3BlYWtpbmcsIHdlIGV4cGVjdCBO QU5EIGRldmljZXMKPiBhcmUgd3JpdGFibGUgaW4gTGludXguIFNvLCBJIHRoaW5rIG15IHBhdGNo IGlzIE9LLgoKSSB0aGluayB0aGUgcGF0Y2ggaXMgZmluZS4KCj4gCj4gCj4gSG93ZXZlciwgSSBh c2tlZCB0aGlzIG15c2VsZjoKPiBJcyB0aGVyZSBhIHVzZWZ1bCBjYXNlIHRvIGFzc2VydCB0aGUg d3JpdGUgcHJvdGVjdAo+IHBpbiBpbiBvcmRlciB0byBtYWtlIHRoZSBOQU5EIGNoaXAgcmVhbGx5 IHJlYWQtb25seT8KPiBGb3IgZXhhbXBsZSwgdGhlIHN5c3RlbSByZWNvdmVyeSBpbWFnZSBpcyBz dG9yZWQgaW4KPiBhIHJlYWQtb25seSBkZXZpY2UsIGFuZCB0aGUgd3JpdGUtcHJvdGVjdCBwaW4g aXMKPiBrZXB0IGFzc2VydGVkIHRvIGFzc3VyZSBub2JvZHkgYWNjaWRlbnRhbGx5IGNvcnJ1cHRz IGl0LgoKSXQgaXMgdmVyeSBsaWtlbHkgdGhhdCB0aGUgc2FtZSBkZXZpY2UgaXMgdXNlZCBmb3Ig Uk8gYW5kIFJXIHN0b3JhZ2Ugc28KaW4gbW9zdCBjYXNlcyB0aGlzIGlzIG5vdCBwb3NzaWJsZS4g V2UgYWxyZWFkeSBoYXZlIHNxdWFzaGZzIHdoaWNoIGlzCmFjdHVhbGx5IHJlYWQtb25seSBhdCBm aWxlc3lzdGVtIGxldmVsLCBJJ20gbm90IHN1cmUgaXQgaXMgbmVlZGVkIHRvCmVuZm9yY2UgdGhp cyBhdCBhIGxvd2VyIGxldmVsLi4uIEFueXdheSBpZiB0aGVyZSBpcyBhY3R1YWxseSBhIHBpbiBm b3IKdGhhdCwgb25lIG1pZ2h0IHdhbnQgdG8gaGFuZGxlIHRoZSBwaW4gZGlyZWN0bHkgYXMgYSBH UElPLCB3aGF0IGRvIHlvdQp0aGluaz8KCj4gQnV0LCBJIGFtIG5vdCBzdXJlIGlmIGl0IHNob3Vs ZCBiZSBoYW5kbGVkIGluIHRoZQo+IGZyYW1ld29yayBsZXZlbCB3aXRoIGEgbW9yZSBnZW5lcmlj IERULWJpbmRpbmcuCj4gCj4gCj4gQ29tbWVudHMgYXJlIGFwcHJlY2lhdGVkLgo+IAo+IC0tCj4g QmVzdCBSZWdhcmRzCj4gTWFzYWhpcm8gWWFtYWRhCgpUaGFua3MsCk1pcXXDqGwKCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eCBNVEQg ZGlzY3Vzc2lvbiBtYWlsaW5nIGxpc3QKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1h bi9saXN0aW5mby9saW51eC1tdGQvCg==