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openwrt-xburst/target/linux/generic-2.6/patches-2.6.28/080-mtd_plat_nand_chip_fixup.patch
kaloz c33bc5192a add generic 2.6.28 patches
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13546 3c298f89-4303-0410-b956-a3cf2f4a3e73
2008-12-08 13:23:09 +00:00

33 lines
758 B
Diff

--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -579,6 +579,7 @@ struct platform_nand_chip {
int chip_delay;
unsigned int options;
const char **part_probe_types;
+ int (*chip_fixup)(struct mtd_info *mtd);
void *priv;
};
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -71,7 +71,18 @@ static int __init plat_nand_probe(struct
platform_set_drvdata(pdev, data);
/* Scan to find existance of the device */
- if (nand_scan(&data->mtd, 1)) {
+ if (nand_scan_ident(&data->mtd, 1)) {
+ 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)) {
res = -ENXIO;
goto out;
}