linux-kernel - Re: [PATCH v1] mtd: spinand: add support for FORESEE F35SQA002G

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Date:   Mon, 2 Oct 2023 13:18:18 +0300
From:   Martin Kurbanov <mmkurbanov@...utedevices.com>
To:     Miquel Raynal <miquel.raynal@...tlin.com>
CC:     Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Mario Kicherer <dev@...herer.org>,
        Chuanhong Guo <gch981213@...il.com>,
        Dhruva Gole <d-gole@...com>, <linux-kernel@...r.kernel.org>,
        <linux-mtd@...ts.infradead.org>, <kernel@...rdevices.ru>
Subject: Re: [PATCH v1] mtd: spinand: add support for FORESEE F35SQA002G

Hi Miquel,
Thanks for your review.

On 02.10.2023 12:44, Miquel Raynal wrote:
> Hi Martin,
>> +static int f35sqa002g_ooblayout_free(struct mtd_info *mtd, int section,
>> +				     struct mtd_oob_region *region)
>> +{
>> +	/* XXX: It is not possible to partially write to this OOB area, as both
>> +	 * the main and OOB areas are protected by ECC. The user needs to
>> +	 * program both the main area and OOB area at one programming time,
>> +	 * so that the ECC parity code can be calculated properly.
>> +	 */
> 
> Is this comment really needed? I believe it could be dropped, unless
> you are really experiencing strange subpage write attempts?

If you write separately to the main area and the OOB area. This is the
case with many SPI NAND chips, I agree that this comment can be dropped.

-- 
Best Regards,
Martin Kurbanov