linux-kernel - Re: [PATCH v4 1/5] mtd: spinand: micron: Generalize the OOB layout structure and function names

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Message-ID: <20200227192209.77d637a4@collabora.com>
Date:   Thu, 27 Feb 2020 19:22:09 +0100
From:   Boris Brezillon <boris.brezillon@...labora.com>
To:     shiva.linuxworks@...il.com
Cc:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Frieder Schrempf <frieder.schrempf@...tron.de>,
        Boris Brezillon <bbrezillon@...nel.org>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Shivamurthy Shastri <sshivamurthy@...ron.com>
Subject: Re: [PATCH v4 1/5] mtd: spinand: micron: Generalize the OOB layout
 structure and function names

On Thu,  6 Feb 2020 21:22:02 +0100
shiva.linuxworks@...il.com wrote:

> From: Shivamurthy Shastri <sshivamurthy@...ron.com>
> 
> In order to add new Micron SPI NAND devices, we generalized the OOB
> layout structure and function names.
> 
> Signed-off-by: Shivamurthy Shastri <sshivamurthy@...ron.com>

Reviewed-by: Boris Brezillon <boris.brezillon@...labora.com>

> ---
>  drivers/mtd/nand/spi/micron.c | 28 ++++++++++++++--------------
>  1 file changed, 14 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/mtd/nand/spi/micron.c b/drivers/mtd/nand/spi/micron.c
> index 7d7b1f7fcf71..c028d0d7e236 100644
> --- a/drivers/mtd/nand/spi/micron.c
> +++ b/drivers/mtd/nand/spi/micron.c
> @@ -34,38 +34,38 @@ static SPINAND_OP_VARIANTS(update_cache_variants,
>  		SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
>  		SPINAND_PROG_LOAD(false, 0, NULL, 0));
>  
> -static int mt29f2g01abagd_ooblayout_ecc(struct mtd_info *mtd, int section,
> -					struct mtd_oob_region *region)
> +static int micron_8_ooblayout_ecc(struct mtd_info *mtd, int section,
> +				  struct mtd_oob_region *region)
>  {
>  	if (section)
>  		return -ERANGE;
>  
> -	region->offset = 64;
> -	region->length = 64;
> +	region->offset = mtd->oobsize / 2;
> +	region->length = mtd->oobsize / 2;
>  
>  	return 0;
>  }
>  
> -static int mt29f2g01abagd_ooblayout_free(struct mtd_info *mtd, int section,
> -					 struct mtd_oob_region *region)
> +static int micron_8_ooblayout_free(struct mtd_info *mtd, int section,
> +				   struct mtd_oob_region *region)
>  {
>  	if (section)
>  		return -ERANGE;
>  
>  	/* Reserve 2 bytes for the BBM. */
>  	region->offset = 2;
> -	region->length = 62;
> +	region->length = (mtd->oobsize / 2) - 2;
>  
>  	return 0;
>  }
>  
> -static const struct mtd_ooblayout_ops mt29f2g01abagd_ooblayout = {
> -	.ecc = mt29f2g01abagd_ooblayout_ecc,
> -	.free = mt29f2g01abagd_ooblayout_free,
> +static const struct mtd_ooblayout_ops micron_8_ooblayout = {
> +	.ecc = micron_8_ooblayout_ecc,
> +	.free = micron_8_ooblayout_free,
>  };
>  
> -static int mt29f2g01abagd_ecc_get_status(struct spinand_device *spinand,
> -					 u8 status)
> +static int micron_8_ecc_get_status(struct spinand_device *spinand,
> +				   u8 status)
>  {
>  	switch (status & MICRON_STATUS_ECC_MASK) {
>  	case STATUS_ECC_NO_BITFLIPS:
> @@ -98,8 +98,8 @@ static const struct spinand_info micron_spinand_table[] = {
>  					      &write_cache_variants,
>  					      &update_cache_variants),
>  		     0,
> -		     SPINAND_ECCINFO(&mt29f2g01abagd_ooblayout,
> -				     mt29f2g01abagd_ecc_get_status)),
> +		     SPINAND_ECCINFO(&micron_8_ooblayout,
> +				     micron_8_ecc_get_status)),
>  };
>  
>  static int micron_spinand_detect(struct spinand_device *spinand)