From patchwork Wed Mar 22 20:07:24 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 95836 Delivered-To: patch@linaro.org Received: by 10.140.89.233 with SMTP id v96csp414231qgd; Wed, 22 Mar 2017 13:14:44 -0700 (PDT) X-Received: by 10.99.178.6 with SMTP id x6mr14514534pge.80.1490213684014; Wed, 22 Mar 2017 13:14:44 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id y7si3003894plb.63.2017.03.22.13.14.43; Wed, 22 Mar 2017 13:14:44 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@nifty.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751716AbdCVUMi (ORCPT + 11 others); Wed, 22 Mar 2017 16:12:38 -0400 Received: from conuserg-07.nifty.com ([210.131.2.74]:25350 "EHLO conuserg-07.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751455AbdCVUL7 (ORCPT ); Wed, 22 Mar 2017 16:11:59 -0400 Received: from grover.sesame (FL1-111-169-71-157.osk.mesh.ad.jp [111.169.71.157]) (authenticated) by conuserg-07.nifty.com with ESMTP id v2MK896F029452; Thu, 23 Mar 2017 05:08:50 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-07.nifty.com v2MK896F029452 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1490213331; bh=T/lJif2f8AroioE4S7qrTzNgJVD7pAs2Jm30d1tfdko=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=S7X0Nt8RriDKwmEt5qht4sa1lpEYHyRcgQtihciTR97S146Utj8lopmohwFrxhU2d i5a0aNXIW82iotgcL1j3U7U0O4oEl7RetL1Wi4mTDGFmLZ8rL2SD9HAdAbp91bAK0u wK30fjxMlvEdWYpSQVK8AkBFYyJiXmOuSBMYJ/SfNf0/NUIB6kCRl1EudK613whbAT mmahOF9GI7h+NWnH1HRZCuQdPuROIFHMMp5oUH5qBsFA8TuRrlKA/gyrGkN7SmNkR/ lh3PDs0BGHx5+bFumbq+TraAHZgCaYakF160jtPWK/vzvHyyjlOMePztCnKkSSsD/L zcB/6NyexQ/MA== X-Nifty-SrcIP: [111.169.71.157] From: Masahiro Yamada To: linux-mtd@lists.infradead.org Cc: laurent.monat@idquantique.com, thorsten.christiansson@idquantique.com, Enrico Jorns , Artem Bityutskiy , Dinh Nguyen , Boris Brezillon , Marek Vasut , Graham Moore , David Woodhouse , Masami Hiramatsu , Chuanxiao Dong , Jassi Brar , Masahiro Yamada , linux-kernel@vger.kernel.org, Brian Norris , Richard Weinberger , Cyrille Pitchen Subject: [RESEND PATCH v2 25/53] mtd: nand: denali: remove unnecessary writes to ECC_CORRECTION Date: Thu, 23 Mar 2017 05:07:24 +0900 Message-Id: <1490213273-8571-26-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1490213273-8571-1-git-send-email-yamada.masahiro@socionext.com> References: <1490213273-8571-1-git-send-email-yamada.masahiro@socionext.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Because SUPPORT_15BITECC is defined, the following is dead code: #elif SUPPORT_8BITECC iowrite32(8, denali->flash_reg + ECC_CORRECTION); #endif Such ifdefs are useless and unacceptable coding style. These writes are not needed in the first place since ECC_CORRECTION is set up by the nand_init() function. Signed-off-by: Masahiro Yamada --- Changes in v2: None drivers/mtd/nand/denali.c | 15 +-------------- drivers/mtd/nand/denali.h | 3 --- 2 files changed, 1 insertion(+), 17 deletions(-) -- 2.7.4 diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index 5e89709..a190cb2 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -62,8 +62,6 @@ MODULE_PARM_DESC(onfi_timing_mode, */ #define CHIP_SELECT_INVALID -1 -#define SUPPORT_8BITECC 1 - /* * This macro divides two integers and rounds fractional values up * to the nearest integer value. @@ -347,14 +345,8 @@ static void get_toshiba_nand_para(struct denali_nand_info *denali) * spare area size for some kind of Toshiba NAND device */ if ((ioread32(denali->flash_reg + DEVICE_MAIN_AREA_SIZE) == 4096) && - (ioread32(denali->flash_reg + DEVICE_SPARE_AREA_SIZE) == 64)) { + (ioread32(denali->flash_reg + DEVICE_SPARE_AREA_SIZE) == 64)) iowrite32(216, denali->flash_reg + DEVICE_SPARE_AREA_SIZE); -#if SUPPORT_15BITECC - iowrite32(15, denali->flash_reg + ECC_CORRECTION); -#elif SUPPORT_8BITECC - iowrite32(8, denali->flash_reg + ECC_CORRECTION); -#endif - } } static void get_hynix_nand_para(struct denali_nand_info *denali, @@ -367,11 +359,6 @@ static void get_hynix_nand_para(struct denali_nand_info *denali, iowrite32(4096, denali->flash_reg + DEVICE_MAIN_AREA_SIZE); iowrite32(224, denali->flash_reg + DEVICE_SPARE_AREA_SIZE); iowrite32(0, denali->flash_reg + DEVICE_WIDTH); -#if SUPPORT_15BITECC - iowrite32(15, denali->flash_reg + ECC_CORRECTION); -#elif SUPPORT_8BITECC - iowrite32(8, denali->flash_reg + ECC_CORRECTION); -#endif break; default: dev_warn(denali->dev, diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h index 58a8042..d9232e4 100644 --- a/drivers/mtd/nand/denali.h +++ b/drivers/mtd/nand/denali.h @@ -303,9 +303,6 @@ #define CLK_X 5 #define CLK_MULTI 4 -#define SUPPORT_15BITECC 1 -#define SUPPORT_8BITECC 1 - #define ONFI_BLOOM_TIME 1 #define MODE5_WORKAROUND 0