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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 9ED5EE784AC for ; Mon, 2 Oct 2023 13:50:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:Cc: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=svvuzqKwvwmEFrT0gycENr9Xv1x4y2xoZHpzM21D76c=; b=Wg7kOjszmmzim8 KyBgvVcXiq2xON1c25kIi4xklh2YzfkqphA1HrV6fg9HP/zjxTXIFevubACLI/fNSHtXNUXcF3V3r 5/zePTwC9l3cgY77RedXdKYuzch89bhnCJnVh1ipbSMKJgHUBOGyA0Tw1MRRVNlBHPgSSoUDE5l1n tXdoc0/g0i4+cqlB3/N+dYyGbFB/VbJTJEpr4AH9IzBTT82FDUf4k6oH7YGzQlI1doomK71X3KBQS SAScPWICg7q1aq4S9STo731nMT0TmSW8W+/uID0yTrlR31ScOEKtcZWf77d/VBCJrOjQZXKkbatbN SVWilp5GP4xQteVUra5g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qnJJ6-00CoRY-05; Mon, 02 Oct 2023 13:49:56 +0000 Received: from relay1-d.mail.gandi.net ([2001:4b98:dc4:8::221]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qnJJ2-00CoQo-2L for linux-mtd@lists.infradead.org; Mon, 02 Oct 2023 13:49:54 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id 5AA4324000D; Mon, 2 Oct 2023 13:49:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1696254587; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4paVPeEF9ZLJzDxaKPdD/mR7tqf5kQ9/5kHc/DvHhlA=; b=UIU5d6aGGKL6D6KCkhLdPeAbU+VlRdNenyDOL4h5JCr7mdCK0cF81jnxFzn2VZAApdGu9V /TdCXnRvnYb0PQlvWdeLsivGVY7GG7UCQLl2ZcmHfnhYv3V6wB/nGglgx1pQ6blCu7HQzY HiI2Qbpr4JbVZHT8+ya6BWHZ5jeDlSECvN0w7u1m27DbmzULPWoRe+6+CnLGYeziNZyr8E LbJ5g/1+Clz/d/6ZE9GXNXScrYSSO1XtHVEPdamxnDHp5J/k87l8FIBvfFhYX4epsZOmvM 6fGlpXEDsqBIWuL81FXIPBCaVJT2iRZGz/5xRKfdFx5x1Sw78gBfrkkAcqrDAw== Date: Mon, 2 Oct 2023 15:49:43 +0200 From: Miquel Raynal To: Martin =?UTF-8?B?SHVuZGViw7hsbA==?= Cc: Rouven Czerwinski , =?UTF-8?B?TcOlbnMg?= =?UTF-8?B?UnVsbGfDpXJk?= , Alexander Shiyan , Richard Weinberger , Vignesh Raghavendra , JaimeLiao , kernel@pengutronix.de, stable@vger.kernel.org, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, Sean =?UTF-8?B?Tnlla2rDpnI=?= , Domenico Punzo , Bean Huo Subject: Re: [PATCH v2] mtd: rawnand: Ensure the nand chip supports cached reads Message-ID: <20231002154943.361e31b0@xps-13> In-Reply-To: References: <20230922141717.35977-1-r.czerwinski@pengutronix.de> <20230926132725.5d570e1b@xps-13> <20230927170516.2604e8f2@xps-13> Organization: Bootlin X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-GND-Sasl: miquel.raynal@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231002_064953_058383_E427FFA5 X-CRM114-Status: GOOD ( 31.08 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 SGkgTWFydGluLAoKbWFydGluQGdlYW5peC5jb20gd3JvdGUgb24gVGh1LCAyOCBTZXAgMjAyMyAw OToxOTo1NiArMDIwMDoKCj4gSGkgTWlxdWVsLAo+IAo+IE9uIFdlZCwgMjAyMy0wOS0yNyBhdCAx NzowNSArMDIwMCwgTWlxdWVsIFJheW5hbCB3cm90ZToKPiA+IEhpIE1hcnRpbiwKPiA+IAo+ID4g bWlxdWVsLnJheW5hbEBib290bGluLmNvbcKgd3JvdGUgb24gVHVlLCAyNiBTZXAgMjAyMyAxMzoy NzoyNSArMDIwMDoKPiA+ICAgCj4gPiA+IEhpIE1hcnRpbiwKPiA+ID4gCj4gPiA+ICsgQmVhbiBh bmQgRG9tZW5pY28sIHRoZXJlIGlzIGEgcXVlc3Rpb24gZm9yIHlvdSBiZWxvdy4KPiA+ID4gCj4g PiA+IG1hcnRpbkBnZWFuaXguY29twqB3cm90ZSBvbiBNb24sIDI1IFNlcCAyMDIzIDEzOjAxOjA2 ICswMjAwOgo+ID4gPiAgIAo+ID4gPiA+IEhpIFJvdXZlbiwKPiA+ID4gPiAKPiA+ID4gPiBPbiBG cmksIDIwMjMtMDktMjIgYXQgMTY6MTcgKzAyMDAsIFJvdXZlbiBDemVyd2luc2tpIHdyb3RlOsKg ICAgCj4gPiA+ID4gPiBCb3RoIHRoZSBKRURFQyBhbmQgT05GSSBzcGVjaWZpY2F0aW9uIHNheSB0 aGF0IHJlYWQgY2FjaGUKPiA+ID4gPiA+IHNlcXVlbnRpYWwKPiA+ID4gPiA+IHN1cHBvcnQgaXMg YW4gb3B0aW9uYWwgY29tbWFuZC4gVGhpcyBtZWFucyB0aGF0IHdlIG5vdCBvbmx5Cj4gPiA+ID4g PiBuZWVkIHRvCj4gPiA+ID4gPiBjaGVjayB3aGV0aGVyIHRoZSBpbmRpdmlkdWFsIGNvbnRyb2xs ZXIgc3VwcG9ydHMgdGhlIGNvbW1hbmQsCj4gPiA+ID4gPiB3ZSBhbHNvCj4gPiA+ID4gPiBuZWVk IHRvIGNoZWNrIHRoZSBwYXJhbWV0ZXIgcGFnZXMgZm9yIGJvdGggT05GSSBhbmQgSkVERUMgTkFO RAo+ID4gPiA+ID4gZmxhc2hlcwo+ID4gPiA+ID4gYmVmb3JlIGVuYWJsaW5nIHNlcXVlbnRpYWwg Y2FjaGUgcmVhZHMuCj4gPiA+ID4gPiAKPiA+ID4gPiA+IFRoaXMgZml4ZXMgc3VwcG9ydCBmb3Ig TkFORCBmbGFzaGVzIHdoaWNoIGRvbid0IHN1cHBvcnQKPiA+ID4gPiA+IGVuYWJsaW5nCj4gPiA+ ID4gPiBjYWNoZQo+ID4gPiA+ID4gcmVhZHMsIGkuZS4gU2Ftc3VuZyBLOUY0RzA4VTBGIG9yIFRv c2hpYmEgVEM1OE5WRzBTM0hUQTAwLgo+ID4gPiA+ID4gCj4gPiA+ID4gPiBTZXF1ZW50aWFsIGNh Y2hlIHJlYWRzIGFyZSBub3cgb25seSBhdmFpbGFibGUgZm9yIE9ORkkgYW5kCj4gPiA+ID4gPiBK RURFQwo+ID4gPiA+ID4gZGV2aWNlcywgaWYgaW5kaXZpZHVhbCB2ZW5kb3JzIGltcGxlbWVudCB0 aGlzLCBpdCBuZWVkcyB0byBiZQo+ID4gPiA+ID4gZW5hYmxlZAo+ID4gPiA+ID4gcGVyIHZlbmRv ci4KPiA+ID4gPiA+IAo+ID4gPiA+ID4gVGVzdGVkIG9uIGkuTVg2USB3aXRoIGEgU2Ftc3VuZyBO QU5EIGZsYXNoIGNoaXAgdGhhdCBkb2Vzbid0Cj4gPiA+ID4gPiBzdXBwb3J0Cj4gPiA+ID4gPiBz ZXF1ZW50aWFsIHJlYWRzLgo+ID4gPiA+ID4gCj4gPiA+ID4gPiBGaXhlczogMDAzZmU0Yjk1NDVi ICgibXRkOiByYXduYW5kOiBTdXBwb3J0IGZvciBzZXF1ZW50aWFsCj4gPiA+ID4gPiBjYWNoZQo+ ID4gPiA+ID4gcmVhZHMiKQo+ID4gPiA+ID4gQ2M6IHN0YWJsZUB2Z2VyLmtlcm5lbC5vcmcKPiA+ ID4gPiA+IFNpZ25lZC1vZmYtYnk6IFJvdXZlbiBDemVyd2luc2tpCj4gPiA+ID4gPiA8ci5jemVy d2luc2tpQHBlbmd1dHJvbml4LmRlPsKgwqDCoCAgIAo+ID4gPiA+IAo+ID4gPiA+IFRoYW5rcyBm b3IgdGhpcy4gSXQgd29ya3MgYXMgZXhwZWN0ZWQgZm9yIG15IFRvc2hpYmEgY2hpcCwKPiA+ID4g PiBvYnZpb3VzbHkKPiA+ID4gPiBiZWNhdXNlIGl0IGRvZXNuJ3QgdXNlIE9ORkkgb3IgSkVERUMu Cj4gPiA+ID4gCj4gPiA+ID4gVW5mb3J0dW5hdGVseSwgbXkgTWljcm9uIGNoaXAgZG9lcyB1c2Ug T05GSSwgYW5kIGl0IHNldHMgdGhlCj4gPiA+ID4gY2FjaGVkLQo+ID4gPiA+IHJlYWQtc3VwcG9y dGVkIGJpdC4gSXQgdGhlbiBmYWlscyB3aGVuIHJlYWRpbmcgYWZ0ZXJ3b3JkczogIAo+ID4gCj4g PiBJIG1pZ2h0IGhhdmUgb3ZlciByZWFjdGVkIHJlZ2FyZGluZyBteSBmaW5kaW5ncyBpbiBNaWNy b24ncwo+ID4gZGF0YXNoZWV0LAo+ID4gSSBuZWVkIHRvIGtub3cgaWYgeW91IHVzZSB0aGUgb24t ZGllIEVDQyBlbmdpbmUgb3IgaWYgeW91IHVzZSB0aGUgb25lCj4gPiBvbiB0aGUgY29udHJvbGxl ci4gSW4gdGhlIGZvcm1lciBjYXNlIHRoZSBmYWlsdXJlIGlzIGV4cGVjdGVkLiBJbiB0aGUKPiA+ IGxhdHRlciBjYXNlLCBpdCdzIG5vdC4gIAo+IAo+IEkgdXNlIHRoZSBkZWZhdWx0LCB3aGljaCBz ZWVtcyB0byBiZSB0aGUgY29udHJvbGxlciBlbmdpbmU/CgpZZWFoLCB5b3UncmUgdXNpbmcgdGhl IGdwbWkgTkFORCBjb250cm9sbGVyIHJpZ2h0PyBJZiB0aGF0J3MgdGhlIGNhc2UsCml0IHNlZW1z IHRoYXQgb25seSBFQ0MgY29ycmVjdGlvbiBpcyBzdXBwb3J0ZWQuCgpUaGFua3MsCk1pcXXDqGwK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpM aW51eCBNVEQgZGlzY3Vzc2lvbiBtYWlsaW5nIGxpc3QKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5v cmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1tdGQvCg==