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Message-ID: <20180620094906.261b04f5@bbrezillon>
Date: Wed, 20 Jun 2018 09:49:06 +0200
From: Boris Brezillon <boris.brezillon@...tlin.com>
To: Chris Packham <chris.packham@...iedtelesis.co.nz>
Cc: miquel.raynal@...tlin.com, dwmw2@...radead.org,
computersforpeace@...il.com, linux-mtd@...ts.infradead.org,
linux-kernel@...r.kernel.org, Richard Weinberger <richard@....at>,
Marek Vasut <marek.vasut@...il.com>
Subject: Re: [PATCH v3 2/4] mtd: rawnand: add manufacturer fixup for ONFI
parameter page
On Wed, 20 Jun 2018 17:05:42 +1200
Chris Packham <chris.packham@...iedtelesis.co.nz> wrote:
> This is called after the ONFI parameter page checksum is verified
> and allows us to override the contents of the parameter page.
>
> Suggested-by: Boris Brezillon <boris.brezillon@...tlin.com>
> Reviewed-by: Boris Brezillon <boris.brezillon@...tlin.com>
Ditto.
> Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
> ---
> Changes in v2:
> - New
> Changes in v3:
> - Add doc comment and review from Boris
>
> drivers/mtd/nand/raw/nand_base.c | 4 ++++
> include/linux/mtd/rawnand.h | 3 +++
> 2 files changed, 7 insertions(+)
>
> diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> index 0cd3e216b95c..65250308c82d 100644
> --- a/drivers/mtd/nand/raw/nand_base.c
> +++ b/drivers/mtd/nand/raw/nand_base.c
> @@ -5172,6 +5172,10 @@ static int nand_flash_detect_onfi(struct nand_chip *chip)
> }
> }
>
> + if (chip->manufacturer.desc && chip->manufacturer.desc->ops &&
> + chip->manufacturer.desc->ops->fixup_onfi_param_page)
> + chip->manufacturer.desc->ops->fixup_onfi_param_page(chip, p);
> +
> /* Check version */
> val = le16_to_cpu(p->revision);
> if (val & (1 << 5))
> diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
> index 3e8ec3b8a39c..ef7e3b4e91ea 100644
> --- a/include/linux/mtd/rawnand.h
> +++ b/include/linux/mtd/rawnand.h
> @@ -778,11 +778,14 @@ nand_get_sdr_timings(const struct nand_data_interface *conf)
> * implementation) if any.
> * @cleanup: the ->init() function may have allocated resources, ->cleanup()
> * is here to let vendor specific code release those resources.
> + * @fixup_onfi_param_page: apply vendor specific fixups to the ONFI
> + * parameter page. This is called after the checksum is verified.
Can you align the second line on the colon?
> */
> struct nand_manufacturer_ops {
> void (*detect)(struct nand_chip *chip);
> int (*init)(struct nand_chip *chip);
> void (*cleanup)(struct nand_chip *chip);
> + void (*fixup_onfi_param_page)(struct nand_chip *chip, struct nand_onfi_params *p);
> };
>
> /**
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