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Message-ID: <50ede482-7f03-ff55-5ad0-aa6249027cbe@collabora.com>
Date:   Mon, 5 Dec 2022 15:21:21 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Xiangsheng Hou <xiangsheng.hou@...iatek.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Chuanhong Guo <gch981213@...il.com>
Cc:     linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-spi@...r.kernel.org, benliang.zhao@...iatek.com,
        bin.zhang@...iatek.com
Subject: Re: [PATCH v2 4/9] mtd: nand: ecc-mtk: Add ECC support fot MT7986 IC

Il 05/12/22 07:57, Xiangsheng Hou ha scritto:
> Add ECC support fot MT7986 IC.
> 
> Signed-off-by: Xiangsheng Hou <xiangsheng.hou@...iatek.com>
> ---
>   drivers/mtd/nand/ecc-mtk.c | 18 ++++++++++++++++++
>   1 file changed, 18 insertions(+)
> 
> diff --git a/drivers/mtd/nand/ecc-mtk.c b/drivers/mtd/nand/ecc-mtk.c
> index 9f9b201fe706..c2f6cfa76a04 100644
> --- a/drivers/mtd/nand/ecc-mtk.c
> +++ b/drivers/mtd/nand/ecc-mtk.c
> @@ -79,6 +79,10 @@ static const u8 ecc_strength_mt7622[] = {
>   	4, 6, 8, 10, 12
>   };
>   
> +static const u8 ecc_strength_mt7986[] = {
> +	4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24
> +};
> +
>   enum mtk_ecc_regs {
>   	ECC_ENCPAR00,
>   	ECC_ENCIRQ_EN,
> @@ -483,6 +487,17 @@ static const struct mtk_ecc_caps mtk_ecc_caps_mt7622 = {
>   	.pg_irq_sel = 0,
>   };
>   
> +static const struct mtk_ecc_caps mtk_ecc_caps_mt7986 = {
> +	.err_mask = 0x1f,

Can't we use GENMASK() to define err_mask instead?

#define MT7986_ERRNUM	GENMASK(4, 0)

P.S.: Did I get that right? Is that referred to the ERRNUM(x) bits?

Regards,
Angelo


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