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SubjectRe: [PATCH 1/2] mtd: rawnand: brcmnand: Don't default to edu transfer
Hi Kamal,

Kamal Dasu <kdasu.kdev@gmail.com> wrote on Thu, 11 Jun 2020 01:44:53
-0400:

> When flash-dma is absent do not default to using flash-edu.
> Make sure flash-edu is enabled before setting EDU transfer
> function.
>
> Fixes: a5d53ad26a8b ("mtd: rawnand: brcmnand: Add support for flash-edu for dma transfers")
> Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
> ---
> drivers/mtd/nand/raw/brcmnand/brcmnand.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
> index 8f9ffb46a09f..0c1d6e543586 100644
> --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
> +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
> @@ -2953,8 +2953,9 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
> if (ret < 0)
> goto err;
>
> - /* set edu transfer function to call */
> - ctrl->dma_trans = brcmnand_edu_trans;
> + if (has_edu(ctrl))
> + /* set edu transfer function to call */
> + ctrl->dma_trans = brcmnand_edu_trans;

Does this fallback to returning an error in case !has_edu() ? Othewise,
how is it handled?

Thanks,
Miquèl

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