linux-kernel - Re: [PATCH v2 2/2] mtd: rawnand: stm32_fmc2: use timings.mode instead of checking tRC

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Date:   Mon, 27 Mar 2023 11:30:51 +0100
From:   Tudor Ambarus <tudor.ambarus@...aro.org>
To:     Christophe Kerello <christophe.kerello@...s.st.com>,
        miquel.raynal@...tlin.com, richard@....at, vigneshr@...com
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH v2 2/2] mtd: rawnand: stm32_fmc2: use timings.mode instead
 of checking tRC_min



On 3/27/23 10:47, Christophe Kerello wrote:
> This patch is using timings.mode value instead of checking tRC_min timing
> for EDO mode support.
> 

Fixes and Cc to stable here too, as you'd like to have this backported
as well, don't you?

> Signed-off-by: Christophe Kerello <christophe.kerello@...s.st.com>

Reviewed-by: Tudor Ambarus <tudor.ambarus@...aro.org>

> ---
>  drivers/mtd/nand/raw/stm32_fmc2_nand.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
> index 3abb63d00a0b..9e74bcd90aaa 100644
> --- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c
> +++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
> @@ -1531,7 +1531,7 @@ static int stm32_fmc2_nfc_setup_interface(struct nand_chip *chip, int chipnr,
>  	if (IS_ERR(sdrt))
>  		return PTR_ERR(sdrt);
>  
> -	if (sdrt->tRC_min < 30000)
> +	if (conf->timings.mode > 3)
>  		return -EOPNOTSUPP;
>  
>  	if (chipnr == NAND_DATA_IFACE_CHECK_ONLY)