mtd: atmel_nand: fix the warning when CONFIG_OF is not defined

This patch fix following warning:

drivers/mtd/nand/atmel_nand.c:2007: warning: 'atmel_nand_nfc_match' defined but not used

This patch add '#if defined(CONFIG_OF)' block to guard around the definition
of atmel_nand_nfc_match, in order to avoid the warning when the kernel is
configured without DT support.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 65b302cf9f8a..ddcd575b2823 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -2251,10 +2251,12 @@ static int atmel_nand_nfc_probe(struct platform_device *pdev)
         return 0;
 }
 
+#if defined(CONFIG_OF)
 static struct of_device_id atmel_nand_nfc_match[] = {
         { .compatible = "atmel,sama5d3-nfc" },
         { /* sentinel */ }
 };
+#endif
 
 static struct platform_driver atmel_nand_nfc_driver = {
         .driver = {