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authorXiaolei Li <xiaolei.li@mediatek.com>2017-11-02 05:05:07 +0300
committerBoris Brezillon <boris.brezillon@free-electrons.com>2017-11-30 12:57:27 +0300
commitf883199d17b87e86a4ebd50bdee69285814bdce7 (patch)
tree6815b01122e909119379dc9234957c88524ce320 /drivers/mtd/nand
parent4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 (diff)
downloadlinux-f883199d17b87e86a4ebd50bdee69285814bdce7.tar.xz
mtd: nand: mtk: use nand_reset() to reset NAND devices in resume function
Previously, we only select chips and then send reset command to a NAND device during resuming nand driver. There is a lack of deselecting chips. It is advised to reset and initialize a NAND device using nand_reset(). Signed-off-by: Xiaolei Li <xiaolei.li@mediatek.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Diffstat (limited to 'drivers/mtd/nand')
-rw-r--r--drivers/mtd/nand/mtk_nand.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/mtd/nand/mtk_nand.c b/drivers/mtd/nand/mtk_nand.c
index d86a7d131cc0..6d0101e13ef6 100644
--- a/drivers/mtd/nand/mtk_nand.c
+++ b/drivers/mtd/nand/mtk_nand.c
@@ -1540,7 +1540,6 @@ static int mtk_nfc_resume(struct device *dev)
struct mtk_nfc *nfc = dev_get_drvdata(dev);
struct mtk_nfc_nand_chip *chip;
struct nand_chip *nand;
- struct mtd_info *mtd;
int ret;
u32 i;
@@ -1553,11 +1552,8 @@ static int mtk_nfc_resume(struct device *dev)
/* reset NAND chip if VCC was powered off */
list_for_each_entry(chip, &nfc->chips, node) {
nand = &chip->nand;
- mtd = nand_to_mtd(nand);
- for (i = 0; i < chip->nsels; i++) {
- nand->select_chip(mtd, i);
- nand->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
- }
+ for (i = 0; i < chip->nsels; i++)
+ nand_reset(nand, i);
}
return 0;