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| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2018-07-20 17:15:14 +0200 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2018-07-31 09:46:03 +0200 |
| commit | 6a9035ceb980ac7ded378fa83f73d9664128777c (patch) | |
| tree | da1157b4451460602bdd8c834416a6ab7e0d35be | |
| parent | 2a4d9c16e8d10ecee4422f90f6a47acf737e3447 (diff) | |
| download | linux-6a9035ceb980ac7ded378fa83f73d9664128777c.tar.bz2 | |
mtd: rawnand: tango: 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>
| -rw-r--r-- | drivers/mtd/nand/raw/tango_nand.c | 40 |
1 files changed, 24 insertions, 16 deletions
diff --git a/drivers/mtd/nand/raw/tango_nand.c b/drivers/mtd/nand/raw/tango_nand.c index dd7a26efdf4f..72698691727d 100644 --- a/drivers/mtd/nand/raw/tango_nand.c +++ b/drivers/mtd/nand/raw/tango_nand.c @@ -517,6 +517,28 @@ static int tango_set_timings(struct mtd_info *mtd, int csline, return 0; } +static int tango_attach_chip(struct nand_chip *chip) +{ + struct nand_ecc_ctrl *ecc = &chip->ecc; + + ecc->mode = NAND_ECC_HW; + ecc->algo = NAND_ECC_BCH; + ecc->bytes = DIV_ROUND_UP(ecc->strength * FIELD_ORDER, BITS_PER_BYTE); + + ecc->read_page_raw = tango_read_page_raw; + ecc->write_page_raw = tango_write_page_raw; + ecc->read_page = tango_read_page; + ecc->write_page = tango_write_page; + ecc->read_oob = tango_read_oob; + ecc->write_oob = tango_write_oob; + + return 0; +} + +static const struct nand_controller_ops tango_controller_ops = { + .attach_chip = tango_attach_chip, +}; + static int chip_init(struct device *dev, struct device_node *np) { u32 cs; @@ -566,22 +588,7 @@ static int chip_init(struct device *dev, struct device_node *np) mtd_set_ooblayout(mtd, &tango_nand_ooblayout_ops); mtd->dev.parent = dev; - err = nand_scan_ident(mtd, 1, NULL); - if (err) - return err; - - ecc->mode = NAND_ECC_HW; - ecc->algo = NAND_ECC_BCH; - ecc->bytes = DIV_ROUND_UP(ecc->strength * FIELD_ORDER, BITS_PER_BYTE); - - ecc->read_page_raw = tango_read_page_raw; - ecc->write_page_raw = tango_write_page_raw; - ecc->read_page = tango_read_page; - ecc->write_page = tango_write_page; - ecc->read_oob = tango_read_oob; - ecc->write_oob = tango_write_oob; - - err = nand_scan_tail(mtd); + err = nand_scan(mtd, 1); if (err) return err; @@ -655,6 +662,7 @@ static int tango_nand_probe(struct platform_device *pdev) platform_set_drvdata(pdev, nfc); nand_controller_init(&nfc->hw); + nfc->hw.ops = &tango_controller_ops; nfc->freq_kHz = clk_get_rate(clk) / 1000; for_each_child_of_node(pdev->dev.of_node, np) { |