linux-kernel - Re: [PATCH v2 06/41] mtd: spi-nor: default page

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Message-ID: <f8fe1378-686f-5889-8f0f-e1cda237ee3f@linaro.org>
Date:   Thu, 24 Aug 2023 09:36:24 +0100
From:   Tudor Ambarus <tudor.ambarus@...aro.org>
To:     Michael Walle <mwalle@...nel.org>,
        Pratyush Yadav <pratyush@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>
Cc:     linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org
Subject: Re: [PATCH v2 06/41] mtd: spi-nor: default page_size to 256 bytes



On 8/22/23 08:09, Michael Walle wrote:
> The INFO() macro always set the page_size to 256 bytes. Make that an
> optional parameter. This default is a sane one for all older flashes,
> newer ones will set the page size by its SFDP tables anyway.
> 
> Signed-off-by: Michael Walle <mwalle@...nel.org>
> Reviewed-by: Miquel Raynal <miquel.raynal@...tlin.com>
> ---
>  drivers/mtd/spi-nor/core.c | 7 +------
>  drivers/mtd/spi-nor/core.h | 8 ++++++--
>  2 files changed, 7 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
> index f4cc2eafcc5e..d27ad1295ee0 100644
> --- a/drivers/mtd/spi-nor/core.c
> +++ b/drivers/mtd/spi-nor/core.c
> @@ -2018,11 +2018,6 @@ static const struct spi_nor_manufacturer *manufacturers[] = {
>  static const struct flash_info spi_nor_generic_flash = {
>  	.name = "spi-nor-generic",
>  	.n_banks = 1,
> -	/*
> -	 * JESD216 rev A doesn't specify the page size, therefore we need a
> -	 * sane default.
> -	 */
> -	.page_size = 256,
>  	.parse_sfdp = true,
>  };
>  
> @@ -3001,7 +2996,7 @@ static void spi_nor_init_default_params(struct spi_nor *nor)
>  	params->writesize = 1;
>  	params->size = info->size;
>  	params->bank_size = params->size;
> -	params->page_size = info->page_size;
> +	params->page_size = info->page_size ?: SPI_NOR_DEFAULT_PAGE_SIZE;

how about to get rid of info->page_size entirely and directly use the
default?