[PATCH 02/10] mtd: add a helper to check the SLC/MLC nand chip
Brian Norris
computersforpeace at gmail.com
Mon Aug 12 20:52:34 EDT 2013
On Mon, Aug 12, 2013 at 01:42:45PM +0800, Huang Shijie wrote:
> Add a helper to check if a nand chip is SLC or MLC.
> This helper makes the code more readable.
>
> Signed-off-by: Huang Shijie <b32955 at freescale.com>
> ---
> drivers/mtd/nand/denali.c | 2 +-
> drivers/mtd/nand/nand_base.c | 14 ++++++--------
> include/linux/mtd/nand.h | 9 +++++++++
> 3 files changed, 16 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
> index 2ed2bb3..645721e 100644
> --- a/drivers/mtd/nand/denali.c
> +++ b/drivers/mtd/nand/denali.c
> @@ -1520,7 +1520,7 @@ int denali_init(struct denali_nand_info *denali)
> * so just let controller do 15bit ECC for MLC and 8bit ECC for
> * SLC if possible.
> * */
> - if (denali->nand.cellinfo & NAND_CI_CELLTYPE_MSK &&
> + if (!nand_is_slc(&denali->nand) &&
According to my recommendations in patch 1, this would only need to be:
if (denali->nand.bits_per_cell > 1 && ...)
IMO, that is plenty readable, then we don't need the helper.
> (denali->mtd.oobsize > (denali->bbtskipbytes +
> ECC_15BITS * (denali->mtd.writesize /
> ECC_SECTOR_SIZE)))) {
> diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
> index ee1aa52..fd5117d 100644
(ditto elsewhere)
Thanks,
Brian
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