On Fri, 20 Jul 2018 17:14:57 +0200 Miquel Raynal <[email protected]> wrote:
> Two helpers have been added to the core to make ECC-related > configuration between the detection phase and the final NAND scan. Use > these hooks and convert the driver to just use nand_scan() instead of > both nand_scan_ident() and nand_scan_tail(). > > Signed-off-by: Miquel Raynal <[email protected]> > --- > drivers/mtd/nand/raw/fsl_elbc_nand.c | 19 ++++++++----------- > 1 file changed, 8 insertions(+), 11 deletions(-) > > diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c > b/drivers/mtd/nand/raw/fsl_elbc_nand.c > index 0aa54a949653..44893e49b386 100644 > --- a/drivers/mtd/nand/raw/fsl_elbc_nand.c > +++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c > @@ -637,9 +637,9 @@ static int fsl_elbc_wait(struct mtd_info *mtd, struct > nand_chip *chip) > return (elbc_fcm_ctrl->mdr & 0xff) | NAND_STATUS_WP; > } > > -static int fsl_elbc_chip_init_tail(struct mtd_info *mtd) > +static int fsl_elbc_attach_chip(struct nand_chip *chip) > { > - struct nand_chip *chip = mtd_to_nand(mtd); > + struct mtd_info *mtd = nand_to_mtd(chip); > struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); > struct fsl_lbc_ctrl *ctrl = priv->ctrl; > struct fsl_lbc_regs __iomem *lbc = ctrl->regs; > @@ -706,6 +706,10 @@ static int fsl_elbc_chip_init_tail(struct mtd_info *mtd) Looks like fsl_elbc_chip_init_tail() was returning -1 here [1]. Please change that for a -ENOTSUPP. With that fixed: Reviewed-by: Boris Brezillon <[email protected]> > return 0; > } > > +static const struct nand_controller_ops fsl_elbc_controller_ops = { > + .attach_chip = fsl_elbc_attach_chip, > +}; > + > static int fsl_elbc_read_page(struct mtd_info *mtd, struct nand_chip *chip, > uint8_t *buf, int oob_required, int page) > { > @@ -910,15 +914,8 @@ static int fsl_elbc_nand_probe(struct platform_device > *pdev) > if (ret) > goto err; > > - ret = nand_scan_ident(mtd, 1, NULL); > - if (ret) > - goto err; > - > - ret = fsl_elbc_chip_init_tail(mtd); > - if (ret) > - goto err; > - > - ret = nand_scan_tail(mtd); > + priv->chip.controller->ops = &fsl_elbc_controller_ops; > + ret = nand_scan(mtd, 1); > if (ret) > goto err; > [1]https://elixir.bootlin.com/linux/v4.18-rc5/source/drivers/mtd/nand/raw/fsl_elbc_nand.c#L699
