[PATCH v4 19/58] mtd: nand: fsl_ifc: use the mtd instance embedded in struct nand_chip
From: Boris Brezillon <hidden>
Date: 2015-12-10 08:02:38
Also in:
linux-omap, linux-samsung-soc, lkml
Subsystem:
memory technology devices (mtd), nand flash subsystem, the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Linus Torvalds
struct nand_chip now embeds an mtd device. Make use of this mtd instance.
Signed-off-by: Boris Brezillon <redacted>
---
Changes generated with the following coccinelle script
--->8---
virtual patch
@fix1@
identifier __chipfield, __mtdfield;
type __type;
@@
(
__type {
...
struct nand_chip __chipfield;
...
- struct mtd_info __mtdfield;
...
};
|
__type {
...
- struct mtd_info __mtdfield;
...
struct nand_chip __chipfield;
...
};
)
@fix2 depends on fix1@
identifier fix1.__chipfield, fix1.__mtdfield;
identifier __subfield;
type fix1.__type;
__type *__priv;
@@
(
- __priv->__mtdfield.__subfield
+ nand_to_mtd(&__priv->__chipfield)->__subfield
|
- &(__priv->__mtdfield)
+ nand_to_mtd(&__priv->__chipfield)
)
--->8---
---
drivers/mtd/nand/fsl_ifc_nand.c | 28 ++++++++++++++++------------
1 file changed, 16 insertions(+), 12 deletions(-)
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 3136842..3f5654f 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c@@ -40,7 +40,6 @@ struct fsl_ifc_ctrl; /* mtd information per set */ struct fsl_ifc_mtd { - struct mtd_info mtd; struct nand_chip chip; struct fsl_ifc_ctrl *ctrl;
@@ -877,12 +876,13 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv) struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_regs __iomem *ifc = ctrl->regs; struct nand_chip *chip = &priv->chip; + struct mtd_info *mtd = nand_to_mtd(&priv->chip); struct nand_ecclayout *layout; u32 csor; /* Fill in fsl_ifc_mtd structure */ - priv->mtd.priv = chip; - priv->mtd.dev.parent = priv->dev; + mtd->priv = chip; + mtd->dev.parent = priv->dev; nand_set_flash_node(chip, priv->dev->of_node); /* fill in nand_chip structure */
@@ -994,9 +994,11 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv) static int fsl_ifc_chip_remove(struct fsl_ifc_mtd *priv) { - nand_release(&priv->mtd); + struct mtd_info *mtd = nand_to_mtd(&priv->chip); - kfree(priv->mtd.name); + nand_release(mtd); + + kfree(mtd->name); if (priv->vbase) iounmap(priv->vbase);
@@ -1031,6 +1033,7 @@ static int fsl_ifc_nand_probe(struct platform_device *dev) int ret; int bank; struct device_node *node = dev->dev.of_node; + struct mtd_info *mtd; if (!fsl_ifc_ctrl_dev || !fsl_ifc_ctrl_dev->regs) return -ENODEV;
@@ -1103,8 +1106,10 @@ static int fsl_ifc_nand_probe(struct platform_device *dev) IFC_NAND_EVTER_INTR_FTOERIR_EN | IFC_NAND_EVTER_INTR_WPERIR_EN, &ifc->ifc_nand.nand_evter_intr_en); - priv->mtd.name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start); - if (!priv->mtd.name) { + + mtd = nand_to_mtd(&priv->chip); + mtd->name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start); + if (!mtd->name) { ret = -ENOMEM; goto err; }
@@ -1113,22 +1118,21 @@ static int fsl_ifc_nand_probe(struct platform_device *dev) if (ret) goto err; - ret = nand_scan_ident(&priv->mtd, 1, NULL); + ret = nand_scan_ident(mtd, 1, NULL); if (ret) goto err; - ret = fsl_ifc_chip_init_tail(&priv->mtd); + ret = fsl_ifc_chip_init_tail(mtd); if (ret) goto err; - ret = nand_scan_tail(&priv->mtd); + ret = nand_scan_tail(mtd); if (ret) goto err; /* First look for RedBoot table or partitions on the command * line, these take precedence over device tree information */ - mtd_device_parse_register(&priv->mtd, part_probe_types, NULL, - NULL, 0); + mtd_device_parse_register(mtd, part_probe_types, NULL, NULL, 0); dev_info(priv->dev, "IFC NAND device at 0x%llx, bank %d\n", (unsigned long long)res.start, priv->bank);
--
2.1.4