linux-kernel - Re: [PATCH v2 01/25] mtd: nand: qcom: fix config error for BCH

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Date:   Wed, 2 Aug 2017 11:17:34 +0530
From:   Archit Taneja <architt@...eaurora.org>
To:     Abhishek Sahu <absahu@...eaurora.org>, dwmw2@...radead.org,
        computersforpeace@...il.com, boris.brezillon@...e-electrons.com,
        marek.vasut@...il.com, richard@....at, cyrille.pitchen@...ev4u.fr,
        robh+dt@...nel.org, mark.rutland@....com
Cc:     linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        andy.gross@...aro.org, sricharan@...eaurora.org,
        stable@...r.kernel.org
Subject: Re: [PATCH v2 01/25] mtd: nand: qcom: fix config error for BCH



On 07/19/2017 05:17 PM, Abhishek Sahu wrote:
> The configuration for BCH is not correct in the current driver.
> The ECC_CFG_ECC_DISABLE bit defines whether to enable or disable the
> BCH ECC in which
> 
> 	0x1 : BCH_DISABLED
> 	0x0 : BCH_ENABLED
> 
> But currently host->bch_enabled is being assined to BCH_DISABLED.

s/assined/assigned

Thanks for fixing this up.

Reviewed-by: Archit Taneja <architt@...eaurora.org>

> 
> Fixes: c76b78d8ec05a ("mtd: nand: Qualcomm NAND controller driver")
> Cc: stable@...r.kernel.org
> Signed-off-by: Abhishek Sahu <absahu@...eaurora.org>
> ---
>   drivers/mtd/nand/qcom_nandc.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mtd/nand/qcom_nandc.c b/drivers/mtd/nand/qcom_nandc.c
> index 57d483a..bc0408c 100644
> --- a/drivers/mtd/nand/qcom_nandc.c
> +++ b/drivers/mtd/nand/qcom_nandc.c
> @@ -1,5 +1,5 @@
>   /*
> - * Copyright (c) 2016, The Linux Foundation. All rights reserved.
> + * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
>    *
>    * This software is licensed under the terms of the GNU General Public
>    * License version 2, as published by the Free Software Foundation, and
> @@ -1893,7 +1893,7 @@ static int qcom_nand_host_setup(struct qcom_nand_host *host)
>   				| wide_bus << WIDE_FLASH
>   				| 1 << DEV0_CFG1_ECC_DISABLE;
>   
> -	host->ecc_bch_cfg = host->bch_enabled << ECC_CFG_ECC_DISABLE
> +	host->ecc_bch_cfg = !host->bch_enabled << ECC_CFG_ECC_DISABLE
>   				| 0 << ECC_SW_RESET
>   				| host->cw_data << ECC_NUM_DATA_BYTES
>   				| 1 << ECC_FORCE_CLK_OPEN
> 

-- 
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