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openwrt-xburst/target/linux/generic/patches-2.6.39/450-mtd_plat_nand_chip_fixup.patch
nbd b2cab73a78 kernel: reorganize 2.6.39 patches
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26691 3c298f89-4303-0410-b956-a3cf2f4a3e73
2011-04-16 18:31:05 +00:00

38 lines
974 B
Diff

---
drivers/mtd/nand/plat_nand.c | 13 ++++++++++++-
include/linux/mtd/nand.h | 1 +
2 files changed, 13 insertions(+), 1 deletion(-)
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -625,6 +625,7 @@ struct platform_nand_chip {
int chip_delay;
unsigned int options;
const char **part_probe_types;
+ int (*chip_fixup)(struct mtd_info *mtd);
void (*set_parts)(uint64_t size, struct platform_nand_chip *chip);
void *priv;
};
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -96,7 +96,18 @@ static int __devinit plat_nand_probe(str
}
/* Scan to find existence of the device */
- if (nand_scan(&data->mtd, pdata->chip.nr_chips)) {
+ if (nand_scan_ident(&data->mtd, pdata->chip.nr_chips, NULL)) {
+ res = -ENXIO;
+ goto out;
+ }
+
+ if (pdata->chip.chip_fixup) {
+ res = pdata->chip.chip_fixup(&data->mtd);
+ if (res)
+ goto out;
+ }
+
+ if (nand_scan_tail(&data->mtd)) {
err = -ENXIO;
goto out;
}