[PATCH v4 35/58] mtd: nand: plat: use the mtd instance embedded in struct nand_chip

[Boris Brezillon]

struct nand_chip now embeds an mtd device. Make use of this mtd instance.

Signed-off-by: Boris Brezillon <boris.brezil...@free-electrons.com>
---
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/plat_nand.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index 06ac6c6..796eb7d 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -20,7 +20,6 @@
 
 struct plat_nand_data {
        struct nand_chip        chip;
-       struct mtd_info         mtd;
        void __iomem            *io_base;
 };
 
@@ -31,6 +30,7 @@ static int plat_nand_probe(struct platform_device *pdev)
 {
        struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
        struct plat_nand_data *data;
+       struct mtd_info *mtd;
        struct resource *res;
        const char **part_types;
        int err = 0;
@@ -58,8 +58,9 @@ static int plat_nand_probe(struct platform_device *pdev)
 
        data->chip.priv = &data;
        nand_set_flash_node(&data->chip, pdev->dev.of_node);
-       data->mtd.priv = &data->chip;
-       data->mtd.dev.parent = &pdev->dev;
+       mtd = nand_to_mtd(&data->chip);
+       mtd->priv = &data->chip;
+       mtd->dev.parent = &pdev->dev;
 
        data->chip.IO_ADDR_R = data->io_base;
        data->chip.IO_ADDR_W = data->io_base;
@@ -87,21 +88,21 @@ static int plat_nand_probe(struct platform_device *pdev)
        }
 
        /* Scan to find existence of the device */
-       if (nand_scan(&data->mtd, pdata->chip.nr_chips)) {
+       if (nand_scan(mtd, pdata->chip.nr_chips)) {
                err = -ENXIO;
                goto out;
        }
 
        part_types = pdata->chip.part_probe_types;
 
-       err = mtd_device_parse_register(&data->mtd, part_types, NULL,
+       err = mtd_device_parse_register(mtd, part_types, NULL,
                                        pdata->chip.partitions,
                                        pdata->chip.nr_partitions);
 
        if (!err)
                return err;
 
-       nand_release(&data->mtd);
+       nand_release(mtd);
 out:
        if (pdata->ctrl.remove)
                pdata->ctrl.remove(pdev);
@@ -116,7 +117,7 @@ static int plat_nand_remove(struct platform_device *pdev)
        struct plat_nand_data *data = platform_get_drvdata(pdev);
        struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
 
-       nand_release(&data->mtd);
+       nand_release(nand_to_mtd(&data->chip));
        if (pdata->ctrl.remove)
                pdata->ctrl.remove(pdev);
 
-- 
2.1.4

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