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=-3.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, URIBL_BLOCKED autolearn=ham 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 CA32EC43381 for ; Wed, 13 Mar 2019 12:59:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 993B2214AE for ; Wed, 13 Mar 2019 12:59:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b="ldehnXed" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726494AbfCMM75 (ORCPT ); Wed, 13 Mar 2019 08:59:57 -0400 Received: from outils.crapouillou.net ([89.234.176.41]:37816 "EHLO crapouillou.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725847AbfCMM74 (ORCPT ); Wed, 13 Mar 2019 08:59:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1552481993; h=from:from:sender: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=CQfhMEahN/XrocGBGIFWacACkKiBhn1UP0sVp4+5o4E=; b=ldehnXedF7XsNQEdYt+WNCD79TY93OlbKMUJxZq0I6kYpNvO31/WlkBPmRn+Tzo2Ub4qie +bwnqvZib1oimQr89EzzXngJ2o/Mgo+Ep31PTI9Q3cqyOXT4/Q2V1zouIwL5jBtMFUXpoh pIEPyyG3vR7MMBBAcESULnsRND56Zug= Date: Wed, 13 Mar 2019 09:59:48 -0300 From: Paul Cercueil Subject: Re: [PATCH v4 2/9] dt-bindings: mtd: ingenic: Change 'BCH' to 'ECC' in documentation To: Miquel Raynal Cc: David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Richard Weinberger , Rob Herring , Mark Rutland , Harvey Hunt , linux-mtd@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Message-Id: <1552481988.2412.2@crapouillou.net> In-Reply-To: <20190304195852.45c056f6@xps13> References: <20190209192305.4434-1-paul@crapouillou.net> <20190209192305.4434-2-paul@crapouillou.net> <20190304105014.0cceea0a@xps13> <1551723830.4932.3@crapouillou.net> <20190304195852.45c056f6@xps13> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le lun. 4 mars 2019 =E0 15:58, Miquel Raynal =20 a =E9crit : > Hi Paul, >=20 > Paul Cercueil wrote on Mon, 04 Mar 2019=20 > 19:23:50 > +0100: >=20 >> On Mon, Mar 4, 2019 at 10:50 AM, Miquel Raynal=20 >> wrote: >> > Hi Paul, >> > >> > Paul Cercueil > > > wrote on Sat, 9 Feb 2019 16:22:58 >> > -0300: >> > >> >> The JZ4740 ECC hardware is not BCH but Reed-Solomon, so it=20 >> makes >> more >> >> sense to use the more generic ECC term. >> >> >> Signed-off-by: Paul Cercueil >=20 >> > >> >> --- >> >> >> Changes: >> >> >> v3: New patch >> >> >> v4: No change >> >> >> .../devicetree/bindings/mtd/ingenic,jz4780-nand.txt | 18=20 >> >> +++++++++--------- >> >> 1 file changed, 9 insertions(+), 9 deletions(-) >> >> >> diff --git >>=20 >> a/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt >>=20 >> b/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt >> >> index a5b940f18bf6..5a45cc54f46d 100644 >> >> ---=20 >> a/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt >> >> +++=20 >> b/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt >> >> @@ -1,4 +1,4 @@ >> >> -* Ingenic JZ4780 NAND/BCH >> >> +* Ingenic JZ4780 NAND/ECC >> >> >> This file documents the device tree bindings for NAND flash=20 >> >> devices on the >> >> JZ4780. NAND devices are connected to the NEMC controller >>=20 >> (described in >> >> @@ -14,10 +14,10 @@ Required NAND controller device properties: >> >> an offset of 0 and a size of 0x1000000 (i.e. the whole NEMC=20 >> >> bank). >> >> >> Optional NAND controller device properties: >> >> -- ingenic,bch-controller: To make use of the hardware BCH >>=20 >> controller, this >> >> - property must contain a phandle for the BCH controller node.=20 >> The >> required >> >> +- ingenic,bch-controller: To make use of the hardware ECC >>=20 >> controller, this >> >> + property must contain a phandle for the ECC controller node.=20 >> The >> required >> > >> > I think there is already a 'ecc-engine' property used by MTK and=20 >> Atmel >> > NAND controllers to point to the ECC engine block. Please use this >> > property instead of the ingenic specific one. >>=20 >> ingenic,bch-controller is already in the devicetree ABI. I can't=20 >> change it now... >=20 > Oh, right... >=20 > Well, same thing as before, maybe you can change it and keep the=20 > driver > backward compatible? I don't want new DT to use this property because > it is not generic and we must have a way from the core to find the ECC > engine handle when the controller does not embed one itself (thus, the > ecc-engine property which is around for quite some time already). I can do that. Will the new ECC framework work with the "ecc-engine"=20 property? -Paul =