mtd: nand: fsl_upm: use the mtd instance embedded in struct nand_chip

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

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c
index 68ec128..0379adc 100644 (file)
--- a/drivers/mtd/nand/fsl_upm.c
+++ b/drivers/mtd/nand/fsl_upm.c
@@ -31,7 +31,6 @@
 
 struct fsl_upm_nand {
        struct device *dev;
-       struct mtd_info mtd;
        struct nand_chip chip;
        int last_ctrl;
        struct mtd_partition *parts;
@@ -49,7 +48,8 @@ struct fsl_upm_nand {
 
 static inline struct fsl_upm_nand *to_fsl_upm_nand(struct mtd_info *mtdinfo)
 {
-       return container_of(mtdinfo, struct fsl_upm_nand, mtd);
+       return container_of(mtd_to_nand(mtdinfo), struct fsl_upm_nand,
+                           chip);
 }
 
 static int fun_chip_ready(struct mtd_info *mtd)
@@ -66,9 +66,10 @@ static int fun_chip_ready(struct mtd_info *mtd)
 static void fun_wait_rnb(struct fsl_upm_nand *fun)
 {
        if (fun->rnb_gpio[fun->mchip_number] >= 0) {
+               struct mtd_info *mtd = nand_to_mtd(&fun->chip);
                int cnt = 1000000;
 
-               while (--cnt && !fun_chip_ready(&fun->mtd))
+               while (--cnt && !fun_chip_ready(mtd))
                        cpu_relax();
                if (!cnt)
                        dev_err(fun->dev, "tired waiting for RNB\n");
@@ -157,6 +158,7 @@ static int fun_chip_init(struct fsl_upm_nand *fun,
                         const struct device_node *upm_np,
                         const struct resource *io_res)
 {
+       struct mtd_info *mtd = nand_to_mtd(&fun->chip);
        int ret;
        struct device_node *flash_np;
 
@@ -174,30 +176,30 @@ static int fun_chip_init(struct fsl_upm_nand *fun,
        if (fun->rnb_gpio[0] >= 0)
                fun->chip.dev_ready = fun_chip_ready;
 
-       fun->mtd.priv = &fun->chip;
-       fun->mtd.dev.parent = fun->dev;
+       mtd->priv = &fun->chip;
+       mtd->dev.parent = fun->dev;
 
        flash_np = of_get_next_child(upm_np, NULL);
        if (!flash_np)
                return -ENODEV;
 
        nand_set_flash_node(&fun->chip, flash_np);
-       fun->mtd.name = kasprintf(GFP_KERNEL, "0x%llx.%s", (u64)io_res->start,
-                                 flash_np->name);
-       if (!fun->mtd.name) {
+       mtd->name = kasprintf(GFP_KERNEL, "0x%llx.%s", (u64)io_res->start,
+                             flash_np->name);
+       if (!mtd->name) {
                ret = -ENOMEM;
                goto err;
        }
 
-       ret = nand_scan(&fun->mtd, fun->mchip_count);
+       ret = nand_scan(mtd, fun->mchip_count);
        if (ret)
                goto err;
 
-       ret = mtd_device_register(&fun->mtd, NULL, 0);
+       ret = mtd_device_register(mtd, NULL, 0);
 err:
        of_node_put(flash_np);
        if (ret)
-               kfree(fun->mtd.name);
+               kfree(mtd->name);
        return ret;
 }
 
@@ -321,10 +323,11 @@ err1:
 static int fun_remove(struct platform_device *ofdev)
 {
        struct fsl_upm_nand *fun = dev_get_drvdata(&ofdev->dev);
+       struct mtd_info *mtd = nand_to_mtd(&fun->chip);
        int i;
 
-       nand_release(&fun->mtd);
-       kfree(fun->mtd.name);
+       nand_release(mtd);
+       kfree(mtd->name);
 
        for (i = 0; i < fun->mchip_count; i++) {
                if (fun->rnb_gpio[i] < 0)