Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758749Ab3EOMJS (ORCPT ); Wed, 15 May 2013 08:09:18 -0400 Received: from mga02.intel.com ([134.134.136.20]:54561 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752853Ab3EOMJQ (ORCPT ); Wed, 15 May 2013 08:09:16 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.87,677,1363158000"; d="scan'208";a="337638464" Message-ID: <1368619917.15764.99.camel@sauron.fi.intel.com> Subject: Re: [PATCH v5 01/11] mtd: add datasheet's ECC information to nand_chip{} From: Artem Bityutskiy Reply-To: dedekind1@gmail.com To: Huang Shijie Cc: dwmw2@infradead.org, computersforpeace@gmail.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Date: Wed, 15 May 2013 15:11:57 +0300 In-Reply-To: <1368607232-2210-2-git-send-email-b32955@freescale.com> References: <1368607232-2210-1-git-send-email-b32955@freescale.com> <1368607232-2210-2-git-send-email-b32955@freescale.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.6.4 (3.6.4-3.fc18) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 891 Lines: 21 On Wed, 2013-05-15 at 16:40 +0800, Huang Shijie wrote: > + * @ecc_strength: [INTERN] ECC correctability from the datasheet. > + * Minimum amount of bit errors per @ecc_step guaranteed to > + * be correctable. If unknown, set to zero. > + * @ecc_step: [INTERN] ECC step required by the @ecc_strength, > + * also from the datasheet. It is the recommended ECC step > + * size, if known; if unknown, set to zero. Here and in other places you talk about "datasheet". Do you assume that the real ECC strength/step used by NAND chips may be different? Or you assume it must be the same? -- Best Regards, Artem Bityutskiy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/