From: stigge@antcom.de (Roland Stigge)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/4] mtd: lpc32xx_slc: Make probe() return -EPROBE_DEFER if necessary
Date: Wed, 27 Jun 2012 17:51:15 +0200 [thread overview]
Message-ID: <1340812275-1197-4-git-send-email-stigge@antcom.de> (raw)
In-Reply-To: <1340812275-1197-1-git-send-email-stigge@antcom.de>
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
next prev parent reply other threads:[~2012-06-27 15:51 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-27 15:51 [PATCH 1/4] mtd: lpc32xx_slc: Select AMBA_PL08X in Kconfig Roland Stigge
2012-06-27 15:51 ` [PATCH 2/4] mtd: lpc32xx_slc: Make wp gpio optional Roland Stigge
2012-06-29 10:37 ` Artem Bityutskiy
2012-06-27 15:51 ` [PATCH 3/4] mtd: lpc32xx_slc: Use of_get_named_gpio() Roland Stigge
2012-06-27 15:51 ` Roland Stigge [this message]
2012-06-27 19:15 ` [PATCH 1/4] mtd: lpc32xx_slc: Select AMBA_PL08X in Kconfig Russell King - ARM Linux
2012-06-27 19:26 ` Alexandre Pereira da Silva
2012-06-27 19:30 ` Russell King - ARM Linux
2012-06-27 19:49 ` Alexandre Pereira da Silva
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