[PATCH 2/3] mtd: nand: read (from DT) and store ECC algorithm

[Kamal Dasu]

On Fri, Feb 12, 2016 at 1:11 PM, Rafał Miłecki <zajec5 at gmail.com> wrote:
>
> This will allow drivers handle ECC properly.
>
> Signed-off-by: Rafał Miłecki <zajec5 at gmail.com>

Reviewed-by: Kamal Dasu <kdasu.kdev at gmail.com>

Thanks Rafal
>
> ---
>  drivers/mtd/nand/nand_base.c | 6 +++++-
>  include/linux/mtd/nand.h     | 1 +
>  2 files changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
> index f2c8ff3..ef977f3 100644
> --- a/drivers/mtd/nand/nand_base.c
> +++ b/drivers/mtd/nand/nand_base.c
> @@ -3979,7 +3979,7 @@ ident_done:
>  static int nand_dt_init(struct nand_chip *chip)
>  {
>         struct device_node *dn = nand_get_flash_node(chip);
> -       int ecc_mode, ecc_strength, ecc_step;
> +       int ecc_mode, ecc_algo, ecc_strength, ecc_step;
>
>         if (!dn)
>                 return 0;
> @@ -3991,6 +3991,7 @@ static int nand_dt_init(struct nand_chip *chip)
>                 chip->bbt_options |= NAND_BBT_USE_FLASH;
>
>         ecc_mode = of_get_nand_ecc_mode(dn);
> +       ecc_algo = of_get_nand_ecc_algo(dn);
>         ecc_strength = of_get_nand_ecc_strength(dn);
>         ecc_step = of_get_nand_ecc_step_size(dn);
>
> @@ -4003,6 +4004,9 @@ static int nand_dt_init(struct nand_chip *chip)
>         if (ecc_mode >= 0)
>                 chip->ecc.mode = ecc_mode;
>
> +       if (ecc_algo >= 0)
> +               chip->ecc.algo = ecc_algo;
> +
>         if (ecc_strength >= 0)
>                 chip->ecc.strength = ecc_strength;
>
> diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
> index 25854d2..8deca1b 100644
> --- a/include/linux/mtd/nand.h
> +++ b/include/linux/mtd/nand.h
> @@ -513,6 +513,7 @@ struct nand_hw_control {
>   */
>  struct nand_ecc_ctrl {
>         nand_ecc_modes_t mode;
> +       enum nand_ecc_algo algo;
>         int steps;
>         int size;
>         int bytes;
> --
> 1.8.4.5
>