Messages in this thread Patch in this message | | | From | Roland Stigge <> | Subject | [PATCH 4/4] mtd: lpc32xx_slc: Make probe() return -EPROBE_DEFER if necessary | Date | Wed, 27 Jun 2012 17:51:15 +0200 |
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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> --- drivers/mtd/nand/lpc32xx_slc.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index 4e8db3a..142a91d 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"); -- 1.7.10.4
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