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| author |   Miquel Raynal <miquel.raynal@bootlin.com> | 2018-07-25 15:31:46 +0200 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2018-07-31 09:46:11 +0200 |
| commit | ccadc14975c9bbd17da3a4b0b443325a5bda0ba2 (patch) | |
| tree | 1ab6a61babc8e1db85daf22ee98add60133e99c8 /drivers/mtd | |
| parent | mtd: rawnand: jz4740: group nand_scan_{ident, tail} calls (diff) | |
| download | linux-dev-ccadc14975c9bbd17da3a4b0b443325a5bda0ba2.tar.xz linux-dev-ccadc14975c9bbd17da3a4b0b443325a5bda0ba2.zip | |
mtd: rawnand: jz4740: convert driver to nand_scan()
Two helpers have been added to the core to do all kind of controller
side configuration/initialization between the detection phase and the
final NAND scan. Implement these hooks so that we can convert the driver
to just use nand_scan() instead of the nand_scan_ident() +
nand_scan_tail() pair.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/raw/jz4740_nand.c | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/drivers/mtd/nand/raw/jz4740_nand.c b/drivers/mtd/nand/raw/jz4740_nand.c index ccd8f897db7c..a7515452bc59 100644 --- a/drivers/mtd/nand/raw/jz4740_nand.c +++ b/drivers/mtd/nand/raw/jz4740_nand.c @@ -309,7 +309,6 @@ static int jz_nand_detect_bank(struct platform_device *pdev, size_t chipnr, uint8_t *nand_maf_id, uint8_t *nand_dev_id) { - struct jz_nand_platform_data *pdata = dev_get_platdata(&pdev->dev); int ret; char res_name[6]; uint32_t ctrl; @@ -332,20 +331,10 @@ static int jz_nand_detect_bank(struct platform_device *pdev, if (chipnr == 0) { /* Detect first chip. */ - ret = nand_scan_ident(mtd, 1, NULL); + ret = nand_scan(mtd, 1); if (ret) goto notfound_id; - if (pdata && pdata->ident_callback) - pdata->ident_callback(pdev, mtd, &pdata->partitions, - &pdata->num_partitions); - - ret = nand_scan_tail(mtd); - if (ret) { - dev_err(&pdev->dev, "Failed to scan NAND\n"); - goto notfound_id; - } - /* Retrieve the IDs from the first chip. */ chip->select_chip(mtd, 0); nand_reset_op(chip); @@ -379,6 +368,24 @@ notfound_id: return ret; } +static int jz_nand_attach_chip(struct nand_chip *chip) +{ + struct mtd_info *mtd = nand_to_mtd(chip); + struct device *dev = mtd->dev.parent; + struct jz_nand_platform_data *pdata = dev_get_platdata(dev); + struct platform_device *pdev = to_platform_device(dev); + + if (pdata && pdata->ident_callback) + pdata->ident_callback(pdev, mtd, &pdata->partitions, + &pdata->num_partitions); + + return 0; +} + +static const struct nand_controller_ops jz_nand_controller_ops = { + .attach_chip = jz_nand_attach_chip, +}; + static int jz_nand_probe(struct platform_device *pdev) { int ret; @@ -422,6 +429,7 @@ static int jz_nand_probe(struct platform_device *pdev) chip->chip_delay = 50; chip->cmd_ctrl = jz_nand_cmd_ctrl; chip->select_chip = jz_nand_select_chip; + chip->dummy_controller.ops = &jz_nand_controller_ops; if (nand->busy_gpio) chip->dev_ready = jz_nand_dev_ready; |