linux-kernel - Re: [PATCH v4 1/3] mtd: nand: mxc_nand: separate page read from ecc calc

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Message-Id: <20240527121854.178599-1-miquel.raynal@bootlin.com>
Date: Mon, 27 May 2024 14:18:54 +0200
From: Miquel Raynal <miquel.raynal@...tlin.com>
To: Sascha Hauer <s.hauer@...gutronix.de>,
	Miquel Raynal <miquel.raynal@...tlin.com>,
	Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>
Cc: linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/3] mtd: nand: mxc_nand: separate page read from ecc calc

On Wed, 2024-05-22 at 05:39:51 UTC, Sascha Hauer wrote:
> Our read_page hook currently reads out a page and also counts and
> returns the number of bitflips. In upcoming exec_op conversion we'll
> need to read the page data in exec_op, but the bitflip information
> will be needed in mxc_nand_read_page(). To ease exec_op conversion
> separate the page read out from the bitflip evaluation.
> 
> For the v2/v3 controllers we can leave the bitflip information in the
> status register for later evaluation. For the v1 controller this is
> not possible, because the status register is overwritten with each
> subpage read. We therefore store the bitflip information in the private
> data.
> 
> Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.

Miquel