[MTD] [NAND] at91_nand rdy_pin fix

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=1100b47ea557e1cd6d9b71fe7ba1a189ed8bf276
Commit:     1100b47ea557e1cd6d9b71fe7ba1a189ed8bf276
Parent:     4854b75c7795604ea6a0b6b7f549f145813343d0
Author:     Ivan Kuten <ivan.kuten at promwad.com>
AuthorDate: Thu May 24 14:35:58 2007 +0300
Committer:  David Woodhouse <dwmw2 at infradead.org>
CommitDate: Thu Jun 28 20:15:13 2007 +0100

    [MTD] [NAND] at91_nand rdy_pin fix
    
    The patch below fixes nand driver for AT91 boards which do not have NAND
    R/B signal connected to gpio (rdy_pin is not connected).
    
    Signed-off-by: Ivan Kuten <ivan.kuten at promwad.com>
    Acked-by: Andrew Victor <andrew at sanpeople.com>
    Signed-off-by: David Woodhouse <dwmw2 at infradead.org>
---
 drivers/mtd/nand/at91_nand.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/nand/at91_nand.c b/drivers/mtd/nand/at91_nand.c
index 512e999..b2a5672 100644
--- a/drivers/mtd/nand/at91_nand.c
+++ b/drivers/mtd/nand/at91_nand.c
@@ -128,7 +128,10 @@ static int __init at91_nand_probe(struct platform_device *pdev)
 	nand_chip->IO_ADDR_R = host->io_base;
 	nand_chip->IO_ADDR_W = host->io_base;
 	nand_chip->cmd_ctrl = at91_nand_cmd_ctrl;
-	nand_chip->dev_ready = at91_nand_device_ready;
+
+	if (host->board->rdy_pin)
+		nand_chip->dev_ready = at91_nand_device_ready;
+
 	nand_chip->ecc.mode = NAND_ECC_SOFT;	/* enable ECC */
 	nand_chip->chip_delay = 20;		/* 20us command delay time */