diff options
| author | Roland Stigge <stigge@antcom.de> | 2012-06-27 19:51:15 +0400 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-07-06 21:25:25 +0400 |
| commit | d5842ab730d368ae2e8925dc00aec0ca132b72ab (patch) | |
| tree | a9bac242c78abd5306c3116f3aaa7e76b524a578 /drivers/mtd/nand/lpc32xx_slc.c | |
| parent | 21535ab39a74b5ec074e2d10b132e866472e86f9 (diff) | |
| download | linux-d5842ab730d368ae2e8925dc00aec0ca132b72ab.tar.xz | |
mtd: lpc32xx_slc: Make probe() return -EPROBE_DEFER if necessary
Via of_get_named_gpio(), wp_gpio can become -EPROBE_DEFER which now makes
probe() return -EPROBE_DEFER as well to wait until the gpio controller is
probed before trying to probe lpc32xx_slc again.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Acked-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/nand/lpc32xx_slc.c')
| -rw-r--r-- | drivers/mtd/nand/lpc32xx_slc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index 116665015269..1719387dd008 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -821,6 +821,8 @@ static int __devinit lpc32xx_nand_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Missing platform data\n"); return -ENOENT; } + if (host->ncfg->wp_gpio == -EPROBE_DEFER) + return -EPROBE_DEFER; if (gpio_is_valid(host->ncfg->wp_gpio) && gpio_request(host->ncfg->wp_gpio, "NAND WP")) { dev_err(&pdev->dev, "GPIO not available\n"); |