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authorLinus Torvalds <torvalds@linux-foundation.org>2009-05-29 08:52:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-05-29 08:52:13 -0700
commit3218911f839b6c85acbf872ad264ea69aa4d89ad (patch)
treed0aefbb2f1d0ea4d2e8f59be99492c5393715184 /drivers/mtd/nand/mxc_nand.c
parentb939e414f0dbd7ac8d38da2c7e3a419728229afd (diff)
parent81e2962801bbb4e740c501ca687d5cb857929c04 (diff)
downloadlinux-stericsson-3218911f839b6c85acbf872ad264ea69aa4d89ad.tar.gz
Merge git://git.infradead.org/~dwmw2/mtd-2.6.30
* git://git.infradead.org/~dwmw2/mtd-2.6.30: jffs2: Fix corruption when flash erase/write failure mtd: MXC NAND driver fixes (v5)
Diffstat (limited to 'drivers/mtd/nand/mxc_nand.c')
-rw-r--r--drivers/mtd/nand/mxc_nand.c43
1 files changed, 23 insertions, 20 deletions
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index f3548d048014..40c26080ecda 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -831,6 +831,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
break;
case NAND_CMD_READID:
+ host->col_addr = 0;
send_read_id(host);
break;
@@ -867,6 +868,7 @@ static int __init mxcnd_probe(struct platform_device *pdev)
mtd->priv = this;
mtd->owner = THIS_MODULE;
mtd->dev.parent = &pdev->dev;
+ mtd->name = "mxc_nand";
/* 50 us command delay time */
this->chip_delay = 5;
@@ -882,8 +884,10 @@ static int __init mxcnd_probe(struct platform_device *pdev)
this->verify_buf = mxc_nand_verify_buf;
host->clk = clk_get(&pdev->dev, "nfc");
- if (IS_ERR(host->clk))
+ if (IS_ERR(host->clk)) {
+ err = PTR_ERR(host->clk);
goto eclk;
+ }
clk_enable(host->clk);
host->clk_act = 1;
@@ -896,7 +900,7 @@ static int __init mxcnd_probe(struct platform_device *pdev)
host->regs = ioremap(res->start, res->end - res->start + 1);
if (!host->regs) {
- err = -EIO;
+ err = -ENOMEM;
goto eres;
}
@@ -1011,30 +1015,35 @@ static int __devexit mxcnd_remove(struct platform_device *pdev)
#ifdef CONFIG_PM
static int mxcnd_suspend(struct platform_device *pdev, pm_message_t state)
{
- struct mtd_info *info = platform_get_drvdata(pdev);
+ struct mtd_info *mtd = platform_get_drvdata(pdev);
+ struct nand_chip *nand_chip = mtd->priv;
+ struct mxc_nand_host *host = nand_chip->priv;
int ret = 0;
DEBUG(MTD_DEBUG_LEVEL0, "MXC_ND : NAND suspend\n");
- if (info)
- ret = info->suspend(info);
-
- /* Disable the NFC clock */
- clk_disable(nfc_clk); /* FIXME */
+ if (mtd) {
+ ret = mtd->suspend(mtd);
+ /* Disable the NFC clock */
+ clk_disable(host->clk);
+ }
return ret;
}
static int mxcnd_resume(struct platform_device *pdev)
{
- struct mtd_info *info = platform_get_drvdata(pdev);
+ struct mtd_info *mtd = platform_get_drvdata(pdev);
+ struct nand_chip *nand_chip = mtd->priv;
+ struct mxc_nand_host *host = nand_chip->priv;
int ret = 0;
DEBUG(MTD_DEBUG_LEVEL0, "MXC_ND : NAND resume\n");
- /* Enable the NFC clock */
- clk_enable(nfc_clk); /* FIXME */
- if (info)
- info->resume(info);
+ if (mtd) {
+ /* Enable the NFC clock */
+ clk_enable(host->clk);
+ mtd->resume(mtd);
+ }
return ret;
}
@@ -1055,13 +1064,7 @@ static struct platform_driver mxcnd_driver = {
static int __init mxc_nd_init(void)
{
- /* Register the device driver structure. */
- pr_info("MXC MTD nand Driver\n");
- if (platform_driver_probe(&mxcnd_driver, mxcnd_probe) != 0) {
- printk(KERN_ERR "Driver register failed for mxcnd_driver\n");
- return -ENODEV;
- }
- return 0;
+ return platform_driver_probe(&mxcnd_driver, mxcnd_probe);
}
static void __exit mxc_nd_cleanup(void)