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From fb607c7c1eaeb47ec2ffed99cab571892cb6af7d Mon Sep 17 00:00:00 2001
From: Xiaolei Li <xiaolei.li@mediatek.com>
Date: Thu, 2 Nov 2017 10:05:07 +0800
Subject: [PATCH 162/224] 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>
---
drivers/mtd/nand/mtk_nand.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
--- a/drivers/mtd/nand/mtk_nand.c
+++ b/drivers/mtd/nand/mtk_nand.c
@@ -1539,7 +1539,6 @@ static int mtk_nfc_resume(struct device
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;
@@ -1552,11 +1551,8 @@ static int mtk_nfc_resume(struct device
/* 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;
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