[PATCH 21/21] mtd: omap2: allow bulding as a module

[Arnd Bergmann]

The omap2 nand device driver calls into the the elm code, which can
be a loadable module, and in that case it cannot be built-in itself.
I can see no reason why the omap2 driver cannot also be a module,
so let's make the option "tristate" in Kconfig to fix this allmodconfig
build error:

ERROR: "elm_config" [drivers/mtd/nand/omap2.ko] undefined!
ERROR: "elm_decode_bch_error_page" [drivers/mtd/nand/omap2.ko] undefined!

Signed-off-by: Arnd Bergmann <arnd at arndb.de>
Cc: David Woodhouse <dwmw2 at infradead.org>
Cc: Artem Bityutskiy <artem.bityutskiy at linux.intel.com>
Cc: Tony Lindgren <tony at atomide.com>
Cc: Afzal Mohammed <afzal at ti.com>
Cc: Russell King <rmk+kernel at arm.linux.org.uk>
Cc: linux-mtd at lists.infradead.org
---
 drivers/mtd/nand/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 81bf5e5..106b55e 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -109,7 +109,7 @@ config MTD_NAND_OMAP2
 
 config MTD_NAND_OMAP_BCH
 	depends on MTD_NAND && MTD_NAND_OMAP2 && ARCH_OMAP3
-	bool "Enable support for hardware BCH error correction"
+	tristate "Enable support for hardware BCH error correction"
 	default n
 	select BCH
 	select BCH_CONST_PARAMS
-- 
1.8.1.2