Re: [PATCH 3/3] mtd: s3c2410: parse the device configuration from OF node

Boris Brezillon
2016-10-12T09:10:42Z

Hi Sergio,

On Wed, 5 Oct 2016 20:46:57 -0300
Sergio Prado <sergio.prado@e-labworks.com> wrote:

> Allows configuring Samsung's s3c2410 memory controller using a
> devicetree.
>
> Signed-off-by: Sergio Prado <sergio.prado@e-labworks.com>
> ---
> drivers/mtd/nand/s3c2410.c | 171 ++++++++++++++++++++++---
> include/linux/platform_data/mtd-nand-s3c2410.h | 1 +
> 2 files changed, 156 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
> index 174ac9dc4265..352cf2656bc8 100644
> --- a/drivers/mtd/nand/s3c2410.c
> +++ b/drivers/mtd/nand/s3c2410.c

[...]

> +
> +static int s3c2410_nand_init_timings(struct s3c2410_nand_info *info,
> + struct nand_chip *chip)
> +{
> + struct s3c2410_platform_nand *pdata = info->platform;
> + const struct nand_sdr_timings *t;
> + int tacls, mode;
> +
> + mode = onfi_get_async_timing_mode(chip);
> + if (mode == ONFI_TIMING_MODE_UNKNOWN)
> + mode = chip->onfi_timing_mode_default;
> +
> + t = onfi_async_timing_mode_to_sdr_timings(mode);
> + if (IS_ERR(t))
> + return PTR_ERR(t);

We recently introduced an method to automate timing selection and
configuration [1]. Can you switch to this approach (the changes are in
the nand/next branch [2] and should appear in 4.9-rc1)?

Thanks,

Boris

[1]https://www.spinics.net/lists/arm-kernel/msg532007.html
[2]https://github.com/linux-nand/linux/tree/nand/next