linux-kernel - Re: [RESEND PATCH v3 15/20] mtd: spi-nor: Add s3an_post_sfdp

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Date:   Tue, 27 Aug 2019 12:48:03 +0530
From:   Vignesh Raghavendra <vigneshr@...com>
To:     <Tudor.Ambarus@...rochip.com>, <boris.brezillon@...labora.com>,
        <marek.vasut@...il.com>, <miquel.raynal@...tlin.com>,
        <richard@....at>, <linux-mtd@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [RESEND PATCH v3 15/20] mtd: spi-nor: Add s3an_post_sfdp_fixups()



On 26/08/19 5:39 PM, Tudor.Ambarus@...rochip.com wrote:
> From: Tudor Ambarus <tudor.ambarus@...rochip.com>
> 
> s3an_nor_scan() was overriding the opcode selection done in
> spi_nor_default_setup(). Set nor->setup() method in order to
> avoid the unnecessary call to spi_nor_default_setup().
> 
> Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
> Reviewed-by: Boris Brezillon <boris.brezillon@...labora.com>
> ---

Reviewed-by: Vignesh Raghavendra <vigneshr@...com>

Regards
Vignesh

> v3: no changes, rebase on previous commits
> 
>  drivers/mtd/spi-nor/spi-nor.c | 17 ++++++++++-------
>  1 file changed, 10 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
> index 2aca56e07341..edf1c8badac9 100644
> --- a/drivers/mtd/spi-nor/spi-nor.c
> +++ b/drivers/mtd/spi-nor/spi-nor.c
> @@ -2718,7 +2718,8 @@ static int spi_nor_check(struct spi_nor *nor)
>  	return 0;
>  }
>  
> -static int s3an_nor_scan(struct spi_nor *nor)
> +static int s3an_nor_setup(struct spi_nor *nor,
> +			  const struct spi_nor_hwcaps *hwcaps)
>  {
>  	int ret;
>  
> @@ -4530,6 +4531,11 @@ static void spansion_post_sfdp_fixups(struct spi_nor *nor)
>  	nor->mtd.erasesize = nor->info->sector_size;
>  }
>  
> +static void s3an_post_sfdp_fixups(struct spi_nor *nor)
> +{
> +	nor->params.setup = s3an_nor_setup;
> +}
> +
>  /**
>   * spi_nor_post_sfdp_fixups() - Updates the flash's parameters and settings
>   * after SFDP has been parsed (is also called for SPI NORs that do not
> @@ -4551,6 +4557,9 @@ static void spi_nor_post_sfdp_fixups(struct spi_nor *nor)
>  		break;
>  	}
>  
> +	if (nor->info->flags & SPI_S3AN)
> +		s3an_post_sfdp_fixups(nor);
> +
>  	if (nor->info->fixups && nor->info->fixups->post_sfdp)
>  		nor->info->fixups->post_sfdp(nor);
>  }
> @@ -4899,12 +4908,6 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
>  		return -EINVAL;
>  	}
>  
> -	if (info->flags & SPI_S3AN) {
> -		ret = s3an_nor_scan(nor);
> -		if (ret)
> -			return ret;
> -	}
> -
>  	/* Send all the required SPI flash commands to initialize device */
>  	ret = spi_nor_init(nor);
>  	if (ret)
> 

-- 
Regards
Vignesh